fix subscriber count

Add all (HTTP(S)) Invidious instances

.github/FUNDING.yml

@@ -0,0 +1 @@
+liberapay: TeamNewPipe

README.md

@@ -12,11 +12,13 @@
 <a href="https://www.bountysource.com/teams/newpipe" alt="Bountysource bounties"><img src="https://img.shields.io/bountysource/team/newpipe/activity.svg?colorB=cd201f"></a>
 </p>
 <hr>
-<p align="center"><a href="#screenshots">Screenshots</a> &bull; <a href="#description">Description</a> &bull; <a href="#features">Features</a> &bull; <a href="#contribution">Contribution</a> &bull; <a href="#donate">Donate</a> &bull; <a href="#license">License</a></p>
+<p align="center"><a href="#screenshots">Screenshots</a> &bull; <a href="#description">Description</a> &bull; <a href="#features">Features</a> &bull; <a href="#updates">Updates</a> &bull; <a href="#contribution">Contribution</a> &bull; <a href="#donate">Donate</a> &bull; <a href="#license">License</a></p>
 <p align="center"><a href="https://newpipe.schabi.org">Website</a> &bull; <a href="https://newpipe.schabi.org/blog/">Blog</a>  &bull; <a href="https://newpipe.schabi.org/press/">Press</a></p>
 <hr>
 
-<b>WARNING: PUTTING NEWPIPE OR ANY FORK OF IT INTO GOOGLE PLAYSTORE VIOLATES THEIR TERMS OF CONDITIONS.</b>
+<b>WARNING: THIS IS A BETA VERSION, THEREFORE YOU MAY ENCOUNTER BUGS. IF YOU DO, OPEN AN ISSUE VIA OUR GITHUB REPOSITORY.</b>
+
+<b>PUTTING NEWPIPE OR ANY FORK OF IT INTO GOOGLE PLAYSTORE VIOLATES THEIR TERMS OF CONDITIONS.</b>
 
 ## Screenshots
 
@@ -64,15 +66,36 @@ NewPipe does not use any Google framework libraries, nor the YouTube API. Websit
 * Enqueue videos
 * Local playlists
 * Subtitles
-* Multi-service support (e.g. SoundCloud \[beta\])
 * Livestream support
+* Show comments
 
 ### Coming Features
 
 * Cast to UPnP and Cast
-* Show comments
 * … and many more
 
+### Supported Services
+
+NewPipe supports multiple services. Our [docs](https://teamnewpipe.github.io/documentation/) provide more info on how a new service can be added to the app and the extractor. Please get in touch with us if you intend to add a new one. Currently supported services are:
+
+* YouTube
+* SoundCloud \[beta\]
+* media.ccc.de \[beta\]
+
+## Updates
+When a change to the NewPipe code occurs (due to either adding features or bug fixing), eventually a release will occur. These are in the format x.xx.x . In order to get this new version, you can:
+ * Build a debug APK yourself. This is the fastest way to get new features on your device, but is much more complicated, so we recommend using one of the other methods.
+ * Download the APK from [releases](https://github.com/TeamNewPipe/NewPipe/releases) and install it.
+ * Update via F-droid. This is the slowest method of getting updates, as F-Droid must recognize changes, build the APK itself, sign it, then push the update to users.
+
+When you install an APK from one of these options, it will be incompatible with an APK from one of the other options. This is due to different signing keys being used. Signing keys help ensure that a user isn't tricked into installing a malicious update to an app, and are independent. F-Droid and GitHub use different signing keys, and building an APK debug excludes a key. The signing key issue is being discussed in issue [#1981](https://github.com/TeamNewPipe/NewPipe/issues/1981), and may be fixed by setting up our own repository on F-Droid.
+
+In the meanwhile, if you want to switch sources for some reason (e.g. NewPipe's core functionality was broken and F-Droid doesn't have the update yet), we recommend following this procedure:
+1. Back up your data via "Settings>Content>Export Database" so you keep your history, subscriptions, and playlists
+2. Uninstall NewPipe
+3. Download the APK from the new source and install it
+4. Import the data from step 1 via "Settings>Content>Import Database"
+
 ## Contribution
 Whether you have ideas, translations, design changes, code cleaning, or real heavy code changes, help is always welcome.
 The more is done the better it gets!

app/build.gradle

@@ -8,18 +8,20 @@ android {
         applicationId "org.schabi.newpipe"
         minSdkVersion 19
         targetSdkVersion 28
-        versionCode 70
-        versionName "0.15.0"
+        versionCode 780
+        versionName "0.17.3"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
     }
+
     buildTypes {
         release {
             minifyEnabled true
             shrinkResources true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+
         debug {
             multiDexEnabled true
             debuggable true
@@ -33,6 +35,7 @@ android {
         // but continue the build even when errors are found:
         abortOnError false
     }
+
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
@@ -41,10 +44,10 @@ android {
 
 ext {
     supportLibVersion = '28.0.0'
-    exoPlayerLibVersion = '2.8.4' //2.9.0
+    exoPlayerLibVersion = '2.9.6'
     roomDbLibVersion = '1.1.1'
     leakCanaryLibVersion = '1.5.4' //1.6.1
-    okHttpLibVersion = '3.11.0'
+    okHttpLibVersion = '3.12.1'
     icepickLibVersion = '3.2.0'
     stethoLibVersion = '1.5.0'
 }
@@ -54,8 +57,7 @@ dependencies {
         exclude module: 'support-annotations'
     })
 
-    implementation 'com.github.TeamNewPipe:NewPipeExtractor:99915e4527c0'
-
+    implementation 'com.github.teamnewpipe:NewPipeExtractor:6d504e08836b0b'
     testImplementation 'junit:junit:4.12'
     testImplementation 'org.mockito:mockito-core:2.23.0'
 

app/src/androidTest/java/org/schabi/newpipe/ApplicationTest.java

@@ -1,13 +0,0 @@
-package org.schabi.newpipe;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}

app/src/main/AndroidManifest.xml

@@ -35,12 +35,6 @@
             </intent-filter>
         </receiver>
 
-        <activity
-            android:name=".player.old.PlayVideoActivity"
-            android:configChanges="orientation|keyboardHidden|screenSize"
-            android:theme="@style/OldVideoPlayerTheme"
-            tools:ignore="UnusedAttribute"/>
-
         <service
             android:name=".player.BackgroundPlayer"
             android:exported="false">
@@ -119,7 +113,6 @@
         <activity
             android:name=".ReCaptchaActivity"
             android:label="@string/reCaptchaActivity"/>
-        <activity android:name=".download.ExtSDDownloadFailedActivity" />
 
         <provider
             android:name="android.support.v4.content.FileProvider"
@@ -184,6 +177,19 @@
                 <category android:name="android.intent.category.DEFAULT"/>
                 <category android:name="android.intent.category.BROWSABLE"/>
 
+                <data android:scheme="http"/>
+                <data android:scheme="https"/>
+                <data android:host="www.youtube-nocookie.com"/>
+                <data android:pathPrefix="/embed/"/>
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW"/>
+                <action android:name="android.media.action.MEDIA_PLAY_FROM_SEARCH"/>
+                <action android:name="android.nfc.action.NDEF_DISCOVERED"/>
+
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+
                 <data android:scheme="vnd.youtube"/>
                 <data android:scheme="vnd.youtube.launch"/>
             </intent-filter>
@@ -210,6 +216,42 @@
                 <data android:pathPrefix="/user/"/>
             </intent-filter>
 
+            <!-- Invidious filter -->
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW"/>
+                <action android:name="android.media.action.MEDIA_PLAY_FROM_SEARCH"/>
+                <action android:name="android.nfc.action.NDEF_DISCOVERED"/>
+
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+
+                <data android:scheme="http"/>
+                <data android:scheme="https"/>
+                <data android:host="invidio.us"/>
+                <data android:host="dev.invidio.us"/>
+                <data android:host="www.invidio.us"/>
+                <data android:host="invidious.snopyta.org"/>
+                <data android:host="de.invidious.snopyta.org"/>
+                <data android:host="fi.invidious.snopyta.org"/>
+                <data android:host="vid.wxzm.sx"/>
+                <data android:host="invidious.kabi.tk"/>
+                <data android:host="invidiou.sh"/>
+                <data android:host="www.invidiou.sh"/>
+                <data android:host="no.invidiou.sh"/>
+                <data android:host="invidious.enkirton.net"/>
+                <data android:host="tube.poal.co"/>
+                <data android:host="invidious.13ad.de"/>
+                <data android:host="yt.elukerio.org"/>
+                <!-- video prefix -->
+                <data android:pathPrefix="/embed/"/>
+                <data android:pathPrefix="/watch"/>
+                <!-- channel prefix -->
+                <data android:pathPrefix="/channel/"/>
+                <data android:pathPrefix="/user/"/>
+                <!-- playlist prefix -->
+                <data android:pathPrefix="/playlist"/>
+            </intent-filter>
+
             <!-- Soundcloud filter -->
             <intent-filter>
                 <action android:name="android.intent.action.VIEW"/>

app/src/main/java/android/support/design/widget/FlingBehavior.java

@@ -0,0 +1,116 @@
+package android.support.design.widget;
+
+import android.animation.ValueAnimator;
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.design.animation.AnimationUtils;
+import android.util.AttributeSet;
+import android.view.View;
+
+// check this https://github.com/ToDou/appbarlayout-spring-behavior/blob/master/appbarspring/src/main/java/android/support/design/widget/AppBarFlingFixBehavior.java
+public final class FlingBehavior extends AppBarLayout.Behavior {
+
+    private ValueAnimator mOffsetAnimator;
+    private static final int MAX_OFFSET_ANIMATION_DURATION = 600; // ms
+
+    public FlingBehavior() {
+    }
+
+    public FlingBehavior(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target, int dx, int dy, int[] consumed, int type) {
+        if (dy != 0) {
+            int val = child.getBottom();
+            if (val != 0) {
+                int min, max;
+                if (dy < 0) {
+                    // We're scrolling down
+                } else {
+                    // We're scrolling up
+                    if (mOffsetAnimator != null && mOffsetAnimator.isRunning()) {
+                        mOffsetAnimator.cancel();
+                    }
+                    min = -child.getUpNestedPreScrollRange();
+                    max = 0;
+                    consumed[1] = scroll(coordinatorLayout, child, dy, min, max);
+                }
+            }
+        }
+    }
+
+    @Override
+    public boolean onNestedPreFling(@NonNull CoordinatorLayout coordinatorLayout, @NonNull AppBarLayout child, @NonNull View target, float velocityX, float velocityY) {
+
+        if (velocityY != 0) {
+            if (velocityY < 0) {
+                // We're flinging down
+                int val = child.getBottom();
+                if (val != 0) {
+                    final int targetScroll =
+                            +child.getDownNestedPreScrollRange();
+                    animateOffsetTo(coordinatorLayout, child, targetScroll, velocityY);
+                }
+
+            } else {
+                // We're flinging up
+                int val = child.getBottom();
+                if (val != 0) {
+                    final int targetScroll = -child.getUpNestedPreScrollRange();
+                    if (getTopBottomOffsetForScrollingSibling() > targetScroll) {
+                        animateOffsetTo(coordinatorLayout, child, targetScroll, velocityY);
+                    }
+                }
+            }
+        }
+
+        return super.onNestedPreFling(coordinatorLayout, child, target, velocityX, velocityY);
+    }
+
+    private void animateOffsetTo(final CoordinatorLayout coordinatorLayout,
+                                 final AppBarLayout child, final int offset, float velocity) {
+        final int distance = Math.abs(getTopBottomOffsetForScrollingSibling() - offset);
+
+        final int duration;
+        velocity = Math.abs(velocity);
+        if (velocity > 0) {
+            duration = 3 * Math.round(1000 * (distance / velocity));
+        } else {
+            final float distanceRatio = (float) distance / child.getHeight();
+            duration = (int) ((distanceRatio + 1) * 150);
+        }
+
+        animateOffsetWithDuration(coordinatorLayout, child, offset, duration);
+    }
+
+    private void animateOffsetWithDuration(final CoordinatorLayout coordinatorLayout,
+                                           final AppBarLayout child, final int offset, final int duration) {
+        final int currentOffset = getTopBottomOffsetForScrollingSibling();
+        if (currentOffset == offset) {
+            if (mOffsetAnimator != null && mOffsetAnimator.isRunning()) {
+                mOffsetAnimator.cancel();
+            }
+            return;
+        }
+
+        if (mOffsetAnimator == null) {
+            mOffsetAnimator = new ValueAnimator();
+            mOffsetAnimator.setInterpolator(AnimationUtils.DECELERATE_INTERPOLATOR);
+            mOffsetAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+                @Override
+                public void onAnimationUpdate(ValueAnimator animator) {
+                    setHeaderTopBottomOffset(coordinatorLayout, child,
+                            (Integer) animator.getAnimatedValue());
+                }
+            });
+        } else {
+            mOffsetAnimator.cancel();
+        }
+
+        mOffsetAnimator.setDuration(Math.min(duration, MAX_OFFSET_ANIMATION_DURATION));
+        mOffsetAnimator.setIntValues(currentOffset, offset);
+        mOffsetAnimator.start();
+    }
+}

app/src/main/java/org/schabi/newpipe/App.java

@@ -1,5 +1,6 @@
 package org.schabi.newpipe;
 
+import android.annotation.TargetApi;
 import android.app.Application;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
@@ -65,6 +66,7 @@ import io.reactivex.plugins.RxJavaPlugins;
 public class App extends Application {
     protected static final String TAG = App.class.toString();
     private RefWatcher refWatcher;
+    private static App app;
 
     @SuppressWarnings("unchecked")
     private static final Class<? extends ReportSenderFactory>[]
@@ -88,6 +90,8 @@ public class App extends Application {
         }
         refWatcher = installLeakCanary();
 
+        app = this;
+
         // Initialize settings first because others inits can use its values
         SettingsActivity.initSettings(this);
 
@@ -100,6 +104,9 @@ public class App extends Application {
         ImageLoader.getInstance().init(getImageLoaderConfigurations(10, 50));
 
         configureRxJavaErrorHandler();
+
+        // Check for new version
+        new CheckForNewAppVersionTask().execute();
     }
 
     protected Downloader getDownloader() {
@@ -211,6 +218,31 @@ public class App extends Application {
         NotificationManager mNotificationManager =
                 (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
         mNotificationManager.createNotificationChannel(mChannel);
+
+        setUpUpdateNotificationChannel(importance);
+    }
+
+    /**
+     * Set up notification channel for app update.
+     * @param importance
+     */
+    @TargetApi(Build.VERSION_CODES.O)
+    private void setUpUpdateNotificationChannel(int importance) {
+
+        final String appUpdateId
+                = getString(R.string.app_update_notification_channel_id);
+        final CharSequence appUpdateName
+                = getString(R.string.app_update_notification_channel_name);
+        final String appUpdateDescription
+                = getString(R.string.app_update_notification_channel_description);
+
+        NotificationChannel appUpdateChannel
+                = new NotificationChannel(appUpdateId, appUpdateName, importance);
+        appUpdateChannel.setDescription(appUpdateDescription);
+
+        NotificationManager appUpdateNotificationManager
+                = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+        appUpdateNotificationManager.createNotificationChannel(appUpdateChannel);
     }
 
     @Nullable
@@ -226,4 +258,8 @@ public class App extends Application {
     protected boolean isDisposedRxExceptionsReported() {
         return false;
     }
+
+    public static App getApp() {
+        return app;
+    }
 }

app/src/main/java/org/schabi/newpipe/CheckForNewAppVersionTask.java

@@ -0,0 +1,243 @@
+package org.schabi.newpipe;
+
+import android.app.Application;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.Signature;
+import android.net.ConnectivityManager;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.preference.PreferenceManager;
+import android.support.v4.app.NotificationCompat;
+import android.support.v4.app.NotificationManagerCompat;
+import android.util.Log;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.schabi.newpipe.report.ErrorActivity;
+import org.schabi.newpipe.report.UserAction;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509Certificate;
+import java.util.concurrent.TimeUnit;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+
+/**
+ * AsyncTask to check if there is a newer version of the NewPipe github apk available or not.
+ * If there is a newer version we show a notification, informing the user. On tapping
+ * the notification, the user will be directed to the download link.
+ */
+public class CheckForNewAppVersionTask extends AsyncTask<Void, Void, String> {
+
+    private static final boolean DEBUG = MainActivity.DEBUG;
+    private static final String TAG = CheckForNewAppVersionTask.class.getSimpleName();
+    private static final Application app = App.getApp();
+    private static final String GITHUB_APK_SHA1 = "B0:2E:90:7C:1C:D6:FC:57:C3:35:F0:88:D0:8F:50:5F:94:E4:D2:15";
+    private static final String newPipeApiUrl = "https://newpipe.schabi.org/api/data.json";
+    private static final int timeoutPeriod = 30;
+
+    private SharedPreferences mPrefs;
+    private OkHttpClient client;
+
+    @Override
+    protected void onPreExecute() {
+
+        mPrefs = PreferenceManager.getDefaultSharedPreferences(app);
+
+        // Check if user has enabled/ disabled update checking
+        // and if the current apk is a github one or not.
+        if (!mPrefs.getBoolean(app.getString(R.string.update_app_key), true)
+                || !isGithubApk()) {
+            this.cancel(true);
+        }
+    }
+
+    @Override
+    protected String doInBackground(Void... voids) {
+        
+        if(isCancelled() || !isConnected()) return null;
+
+        // Make a network request to get latest NewPipe data.
+        if (client == null) {
+
+            client = new OkHttpClient
+                    .Builder()
+                    .readTimeout(timeoutPeriod, TimeUnit.SECONDS)
+                    .build();
+        }
+
+        Request request = new Request.Builder()
+                .url(newPipeApiUrl)
+                .build();
+
+        try {
+            Response response = client.newCall(request).execute();
+            return response.body().string();
+        } catch (IOException ex) {
+            // connectivity problems, do not alarm user and fail silently
+            if (DEBUG) Log.w(TAG, Log.getStackTraceString(ex));
+        }
+
+        return null;
+    }
+
+    @Override
+    protected void onPostExecute(String response) {
+
+        // Parse the json from the response.
+        if (response != null) {
+
+            try {
+                JSONObject mainObject = new JSONObject(response);
+                JSONObject flavoursObject = mainObject.getJSONObject("flavors");
+                JSONObject githubObject = flavoursObject.getJSONObject("github");
+                JSONObject githubStableObject = githubObject.getJSONObject("stable");
+
+                String versionName = githubStableObject.getString("version");
+                String versionCode = githubStableObject.getString("version_code");
+                String apkLocationUrl = githubStableObject.getString("apk");
+
+                compareAppVersionAndShowNotification(versionName, apkLocationUrl, versionCode);
+
+            } catch (JSONException ex) {
+                // connectivity problems, do not alarm user and fail silently
+                if (DEBUG) Log.w(TAG, Log.getStackTraceString(ex));
+            }
+        }
+    }
+
+    /**
+     * Method to compare the current and latest available app version.
+     * If a newer version is available, we show the update notification.
+     * @param versionName
+     * @param apkLocationUrl
+     */
+    private void compareAppVersionAndShowNotification(String versionName,
+                                                      String apkLocationUrl,
+                                                      String versionCode) {
+
+        int NOTIFICATION_ID = 2000;
+
+        if (BuildConfig.VERSION_CODE < Integer.valueOf(versionCode)) {
+
+            // A pending intent to open the apk location url in the browser.
+            Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(apkLocationUrl));
+            PendingIntent pendingIntent
+                    = PendingIntent.getActivity(app, 0, intent, 0);
+
+            NotificationCompat.Builder notificationBuilder = new NotificationCompat
+                    .Builder(app, app.getString(R.string.app_update_notification_channel_id))
+                    .setSmallIcon(R.drawable.ic_newpipe_update)
+                    .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
+                    .setContentIntent(pendingIntent)
+                    .setAutoCancel(true)
+                    .setContentTitle(app.getString(R.string.app_update_notification_content_title))
+                    .setContentText(app.getString(R.string.app_update_notification_content_text)
+                            + " " + versionName);
+
+            NotificationManagerCompat notificationManager = NotificationManagerCompat.from(app);
+            notificationManager.notify(NOTIFICATION_ID, notificationBuilder.build());
+        }
+    }
+
+    /**
+     * Method to get the apk's SHA1 key.
+     * https://stackoverflow.com/questions/9293019/get-certificate-fingerprint-from-android-app#22506133
+     */
+    private static String getCertificateSHA1Fingerprint() {
+
+        PackageManager pm = app.getPackageManager();
+        String packageName = app.getPackageName();
+        int flags = PackageManager.GET_SIGNATURES;
+        PackageInfo packageInfo = null;
+
+        try {
+            packageInfo = pm.getPackageInfo(packageName, flags);
+        } catch (PackageManager.NameNotFoundException ex) {
+            ErrorActivity.reportError(app, ex, null, null,
+                    ErrorActivity.ErrorInfo.make(UserAction.SOMETHING_ELSE, "none",
+                            "Could not find package info", R.string.app_ui_crash));
+        }
+
+        Signature[] signatures = packageInfo.signatures;
+        byte[] cert = signatures[0].toByteArray();
+        InputStream input = new ByteArrayInputStream(cert);
+
+        CertificateFactory cf = null;
+        X509Certificate c = null;
+
+        try {
+            cf = CertificateFactory.getInstance("X509");
+            c = (X509Certificate) cf.generateCertificate(input);
+        } catch (CertificateException ex) {
+            ErrorActivity.reportError(app, ex, null, null,
+                    ErrorActivity.ErrorInfo.make(UserAction.SOMETHING_ELSE, "none",
+                            "Certificate error", R.string.app_ui_crash));
+        }
+
+        String hexString = null;
+
+        try {
+            MessageDigest md = MessageDigest.getInstance("SHA1");
+            byte[] publicKey = md.digest(c.getEncoded());
+            hexString = byte2HexFormatted(publicKey);
+        } catch (NoSuchAlgorithmException ex1) {
+            ErrorActivity.reportError(app, ex1, null, null,
+                    ErrorActivity.ErrorInfo.make(UserAction.SOMETHING_ELSE, "none",
+                            "Could not retrieve SHA1 key", R.string.app_ui_crash));
+        } catch (CertificateEncodingException ex2) {
+            ErrorActivity.reportError(app, ex2, null, null,
+                    ErrorActivity.ErrorInfo.make(UserAction.SOMETHING_ELSE, "none",
+                            "Could not retrieve SHA1 key", R.string.app_ui_crash));
+        }
+
+        return hexString;
+    }
+
+    private static String byte2HexFormatted(byte[] arr) {
+
+        StringBuilder str = new StringBuilder(arr.length * 2);
+
+        for (int i = 0; i < arr.length; i++) {
+            String h = Integer.toHexString(arr[i]);
+            int l = h.length();
+            if (l == 1) h = "0" + h;
+            if (l > 2) h = h.substring(l - 2, l);
+            str.append(h.toUpperCase());
+            if (i < (arr.length - 1)) str.append(':');
+        }
+        return str.toString();
+    }
+
+    public static boolean isGithubApk() {
+
+        return getCertificateSHA1Fingerprint().equals(GITHUB_APK_SHA1);
+    }
+    
+    private boolean isConnected() {
+     
+        ConnectivityManager cm = 
+                (ConnectivityManager) app.getSystemService(Context.CONNECTIVITY_SERVICE);
+        return cm.getActiveNetworkInfo() != null
+				&& cm.getActiveNetworkInfo().isConnected();
+    }
+}

app/src/main/java/org/schabi/newpipe/Downloader.java

@@ -3,18 +3,24 @@ package org.schabi.newpipe;
 import android.support.annotation.Nullable;
 import android.text.TextUtils;
 
+import org.schabi.newpipe.extractor.DownloadRequest;
+import org.schabi.newpipe.extractor.DownloadResponse;
 import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
 import org.schabi.newpipe.extractor.utils.Localization;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.Serializable;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
+import okhttp3.MediaType;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
+import okhttp3.RequestBody;
 import okhttp3.Response;
 import okhttp3.ResponseBody;
 
@@ -139,13 +145,16 @@ public class Downloader implements org.schabi.newpipe.extractor.Downloader {
 
     private ResponseBody getBody(String siteUrl, Map<String, String> customProperties) throws IOException, ReCaptchaException {
         final Request.Builder requestBuilder = new Request.Builder()
-                .method("GET", null).url(siteUrl)
-                .addHeader("User-Agent", USER_AGENT);
+                .method("GET", null).url(siteUrl);
 
         for (Map.Entry<String, String> header : customProperties.entrySet()) {
             requestBuilder.addHeader(header.getKey(), header.getValue());
         }
 
+        if (!customProperties.containsKey("User-Agent")) {
+            requestBuilder.header("User-Agent", USER_AGENT);
+        }
+
         if (!TextUtils.isEmpty(mCookies)) {
             requestBuilder.addHeader("Cookie", mCookies);
         }
@@ -155,7 +164,7 @@ public class Downloader implements org.schabi.newpipe.extractor.Downloader {
         final ResponseBody body = response.body();
 
         if (response.code() == 429) {
-            throw new ReCaptchaException("reCaptcha Challenge requested");
+            throw new ReCaptchaException("reCaptcha Challenge requested", siteUrl);
         }
 
         if (body == null) {
@@ -177,4 +186,96 @@ public class Downloader implements org.schabi.newpipe.extractor.Downloader {
     public String download(String siteUrl) throws IOException, ReCaptchaException {
         return download(siteUrl, Collections.emptyMap());
     }
-}
+
+
+    @Override
+    public DownloadResponse get(String siteUrl, DownloadRequest request) throws IOException, ReCaptchaException {
+        final Request.Builder requestBuilder = new Request.Builder()
+                .method("GET", null).url(siteUrl);
+
+        Map<String, List<String>> requestHeaders = request.getRequestHeaders();
+        // set custom headers in request
+        for (Map.Entry<String, List<String>> pair : requestHeaders.entrySet()) {
+            for(String value : pair.getValue()){
+                requestBuilder.addHeader(pair.getKey(), value);
+            }
+        }
+
+        if (!requestHeaders.containsKey("User-Agent")) {
+            requestBuilder.header("User-Agent", USER_AGENT);
+        }
+
+        if (!TextUtils.isEmpty(mCookies)) {
+            requestBuilder.addHeader("Cookie", mCookies);
+        }
+
+        final Request okRequest = requestBuilder.build();
+        final Response response = client.newCall(okRequest).execute();
+        final ResponseBody body = response.body();
+
+        if (response.code() == 429) {
+            throw new ReCaptchaException("reCaptcha Challenge requested", siteUrl);
+        }
+
+        if (body == null) {
+            response.close();
+            return null;
+        }
+
+        return new DownloadResponse(body.string(), response.headers().toMultimap());
+    }
+
+    @Override
+    public DownloadResponse get(String siteUrl) throws IOException, ReCaptchaException {
+        return get(siteUrl, DownloadRequest.emptyRequest);
+    }
+
+    @Override
+    public DownloadResponse post(String siteUrl, DownloadRequest request) throws IOException, ReCaptchaException {
+
+        Map<String, List<String>> requestHeaders = request.getRequestHeaders();
+        if(null == requestHeaders.get("Content-Type") || requestHeaders.get("Content-Type").isEmpty()){
+            // content type header is required. maybe throw an exception here
+            return null;
+        }
+
+        String contentType = requestHeaders.get("Content-Type").get(0);
+
+        RequestBody okRequestBody = null;
+        if(null != request.getRequestBody()){
+            okRequestBody = RequestBody.create(MediaType.parse(contentType), request.getRequestBody());
+        }
+        final Request.Builder requestBuilder = new Request.Builder()
+                .method("POST",  okRequestBody).url(siteUrl);
+
+        // set custom headers in request
+        for (Map.Entry<String, List<String>> pair : requestHeaders.entrySet()) {
+            for(String value : pair.getValue()){
+                requestBuilder.addHeader(pair.getKey(), value);
+            }
+        }
+
+        if (!requestHeaders.containsKey("User-Agent")) {
+            requestBuilder.header("User-Agent", USER_AGENT);
+        }
+
+        if (!TextUtils.isEmpty(mCookies)) {
+            requestBuilder.addHeader("Cookie", mCookies);
+        }
+
+        final Request okRequest = requestBuilder.build();
+        final Response response = client.newCall(okRequest).execute();
+        final ResponseBody body = response.body();
+
+        if (response.code() == 429) {
+            throw new ReCaptchaException("reCaptcha Challenge requested", siteUrl);
+        }
+
+        if (body == null) {
+            response.close();
+            return null;
+        }
+
+        return new DownloadResponse(body.string(), response.headers().toMultimap());
+    }
+}

app/src/main/java/org/schabi/newpipe/ReCaptchaActivity.java

@@ -37,15 +37,24 @@ import android.webkit.WebViewClient;
  */
 public class ReCaptchaActivity extends AppCompatActivity {
     public static final int RECAPTCHA_REQUEST = 10;
+    public static final String RECAPTCHA_URL_EXTRA = "recaptcha_url_extra";
 
     public static final String TAG = ReCaptchaActivity.class.toString();
     public static final String YT_URL = "https://www.youtube.com";
 
+    private String url;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_recaptcha);
 
+        url = getIntent().getStringExtra(RECAPTCHA_URL_EXTRA);
+        if (url == null || url.isEmpty()) {
+            url = YT_URL;
+        }
+
+
         // Set return to Cancel by default
         setResult(RESULT_CANCELED);
 
@@ -73,15 +82,12 @@ public class ReCaptchaActivity extends AppCompatActivity {
         myWebView.clearHistory();
         android.webkit.CookieManager cookieManager = CookieManager.getInstance();
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            cookieManager.removeAllCookies(new ValueCallback<Boolean>() {
-                @Override
-                public void onReceiveValue(Boolean aBoolean) {}
-            });
+            cookieManager.removeAllCookies(aBoolean -> {});
         } else {
             cookieManager.removeAllCookie();
         }
 
-        myWebView.loadUrl(YT_URL);
+        myWebView.loadUrl(url);
     }
 
     private class ReCaptchaWebViewClient extends WebViewClient {

app/src/main/java/org/schabi/newpipe/RouterActivity.java

@@ -36,12 +36,12 @@ import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfo;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.extractor.stream.VideoStream;
-import org.schabi.newpipe.player.helper.PlayerHelper;
 import org.schabi.newpipe.player.playqueue.ChannelPlayQueue;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.PlaylistPlayQueue;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.report.UserAction;
+import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.ExtractorHelper;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.NavigationHelper;
@@ -74,17 +74,23 @@ import static org.schabi.newpipe.util.ThemeHelper.resolveResourceIdFromAttr;
  */
 public class RouterActivity extends AppCompatActivity {
 
-    @State protected int currentServiceId = -1;
+    @State
+    protected int currentServiceId = -1;
     private StreamingService currentService;
-    @State protected LinkType currentLinkType;
-    @State protected int selectedRadioPosition = -1;
+    @State
+    protected LinkType currentLinkType;
+    @State
+    protected int selectedRadioPosition = -1;
     protected int selectedPreviously = -1;
 
     protected String currentUrl;
+    protected boolean internalRoute = false;
     protected final CompositeDisposable disposables = new CompositeDisposable();
 
     private boolean selectionIsDownload = false;
 
+    public static final String internalRouteKey = "internalRoute";
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -94,11 +100,13 @@ public class RouterActivity extends AppCompatActivity {
             currentUrl = getUrl(getIntent());
 
             if (TextUtils.isEmpty(currentUrl)) {
-                Toast.makeText(this, R.string.invalid_url_toast, Toast.LENGTH_LONG).show();
+                handleText();
                 finish();
             }
         }
 
+        internalRoute = getIntent().getBooleanExtra(internalRouteKey, false);
+
         setTheme(ThemeHelper.isLightThemeSelected(this)
                 ? R.style.RouterActivityThemeLight : R.style.RouterActivityThemeDark);
     }
@@ -112,7 +120,7 @@ public class RouterActivity extends AppCompatActivity {
     @Override
     protected void onStart() {
         super.onStart();
-        
+
         handleUrl(currentUrl);
     }
 
@@ -252,7 +260,7 @@ public class RouterActivity extends AppCompatActivity {
                 .setNegativeButton(R.string.just_once, dialogButtonsClickListener)
                 .setPositiveButton(R.string.always, dialogButtonsClickListener)
                 .setOnDismissListener((dialog) -> {
-                    if(!selectionIsDownload) finish();
+                    if (!selectionIsDownload) finish();
                 })
                 .create();
 
@@ -353,6 +361,15 @@ public class RouterActivity extends AppCompatActivity {
         positiveButton.setEnabled(state);
     }
 
+    private void handleText() {
+        String searchString = getIntent().getStringExtra(Intent.EXTRA_TEXT);
+        int serviceId = getIntent().getIntExtra(Constants.KEY_SERVICE_ID, 0);
+        Intent intent = new Intent(getThemeWrapperContext(), MainActivity.class);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        startActivity(intent);
+        NavigationHelper.openSearch(getThemeWrapperContext(), serviceId, searchString);
+    }
+
     private void handleChoice(final String selectedChoiceKey) {
         final List<String> validChoicesList = Arrays.asList(getResources().getStringArray(R.array.preferred_open_action_values_list));
         if (validChoicesList.contains(selectedChoiceKey)) {
@@ -383,8 +400,10 @@ public class RouterActivity extends AppCompatActivity {
                     .subscribeOn(Schedulers.io())
                     .observeOn(AndroidSchedulers.mainThread())
                     .subscribe(intent -> {
-                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-                        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
+                        if (!internalRoute) {
+                            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
+                        }
                         startActivity(intent);
 
                         finish();
@@ -431,8 +450,8 @@ public class RouterActivity extends AppCompatActivity {
 
     @Override
     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
-        for (int i: grantResults){
-            if (i == PackageManager.PERMISSION_DENIED){
+        for (int i : grantResults) {
+            if (i == PackageManager.PERMISSION_DENIED) {
                 finish();
                 return;
             }
@@ -444,7 +463,8 @@ public class RouterActivity extends AppCompatActivity {
 
     private static class AdapterChoiceItem {
         final String description, key;
-        @DrawableRes final int icon;
+        @DrawableRes
+        final int icon;
 
         AdapterChoiceItem(String key, String description, int icon) {
             this.description = description;
@@ -542,7 +562,8 @@ public class RouterActivity extends AppCompatActivity {
 
                 final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
                 boolean isExtVideoEnabled = preferences.getBoolean(getString(R.string.use_external_video_player_key), false);
-                boolean isExtAudioEnabled = preferences.getBoolean(getString(R.string.use_external_audio_player_key), false);;
+                boolean isExtAudioEnabled = preferences.getBoolean(getString(R.string.use_external_audio_player_key), false);
+                ;
 
                 PlayQueue playQueue;
                 String playerChoice = choice.playerChoice;
@@ -558,7 +579,7 @@ public class RouterActivity extends AppCompatActivity {
                         playQueue = new SinglePlayQueue((StreamInfo) info);
 
                         if (playerChoice.equals(videoPlayerKey)) {
-                            NavigationHelper.playOnMainPlayer(this, playQueue);
+                            NavigationHelper.playOnMainPlayer(this, playQueue, true);
                         } else if (playerChoice.equals(backgroundPlayerKey)) {
                             NavigationHelper.enqueueOnBackgroundPlayer(this, playQueue, true);
                         } else if (playerChoice.equals(popupPlayerKey)) {
@@ -571,11 +592,11 @@ public class RouterActivity extends AppCompatActivity {
                     playQueue = info instanceof ChannelInfo ? new ChannelPlayQueue((ChannelInfo) info) : new PlaylistPlayQueue((PlaylistInfo) info);
 
                     if (playerChoice.equals(videoPlayerKey)) {
-                        NavigationHelper.playOnMainPlayer(this, playQueue);
+                        NavigationHelper.playOnMainPlayer(this, playQueue, true);
                     } else if (playerChoice.equals(backgroundPlayerKey)) {
-                        NavigationHelper.playOnBackgroundPlayer(this, playQueue);
+                        NavigationHelper.playOnBackgroundPlayer(this, playQueue, true);
                     } else if (playerChoice.equals(popupPlayerKey)) {
-                        NavigationHelper.playOnPopupPlayer(this, playQueue);
+                        NavigationHelper.playOnPopupPlayer(this, playQueue, true);
                     }
                 }
             };

app/src/main/java/org/schabi/newpipe/database/Migrations.java

@@ -3,15 +3,24 @@ package org.schabi.newpipe.database;
 import android.arch.persistence.db.SupportSQLiteDatabase;
 import android.arch.persistence.room.migration.Migration;
 import android.support.annotation.NonNull;
+import android.util.Log;
+
+import org.schabi.newpipe.BuildConfig;
 
 public class Migrations {
 
     public static final int DB_VER_11_0 = 1;
     public static final int DB_VER_12_0 = 2;
 
+    public static final boolean DEBUG = !BuildConfig.BUILD_TYPE.equals("release");
+    private static final String TAG = Migrations.class.getName();
+
     public static final Migration MIGRATION_11_12 = new Migration(DB_VER_11_0, DB_VER_12_0) {
         @Override
         public void migrate(@NonNull SupportSQLiteDatabase database) {
+            if(DEBUG) {
+                Log.d(TAG, "Start migrating database");
+            }
             /*
             * Unfortunately these queries must be hardcoded due to the possibility of
             * schema and names changing at a later date, thus invalidating the older migration
@@ -56,6 +65,10 @@ public class Migrations {
                     "ORDER BY creation_date DESC");
 
             database.execSQL("DROP TABLE IF EXISTS watch_history");
+
+            if(DEBUG) {
+                Log.d(TAG, "Stop migrating database");
+            }
         }
     };
 }

app/src/main/java/org/schabi/newpipe/database/history/dao/StreamHistoryDAO.java

@@ -50,6 +50,11 @@ public abstract class StreamHistoryDAO implements HistoryDAO<StreamHistoryEntity
             " ORDER BY " + STREAM_ACCESS_DATE + " DESC")
     public abstract Flowable<List<StreamHistoryEntry>> getHistory();
 
+    @Query("SELECT * FROM " + STREAM_HISTORY_TABLE + " WHERE " + JOIN_STREAM_ID +
+            " = :streamId ORDER BY " + STREAM_ACCESS_DATE + " DESC LIMIT 1")
+    @Nullable
+    public abstract StreamHistoryEntity getLatestEntry(final long streamId);
+
     @Query("DELETE FROM " + STREAM_HISTORY_TABLE + " WHERE " + JOIN_STREAM_ID + " = :streamId")
     public abstract int deleteStreamHistory(final long streamId);
 

app/src/main/java/org/schabi/newpipe/database/stream/model/StreamStateEntity.java

@@ -4,6 +4,9 @@ package org.schabi.newpipe.database.stream.model;
 import android.arch.persistence.room.ColumnInfo;
 import android.arch.persistence.room.Entity;
 import android.arch.persistence.room.ForeignKey;
+import android.support.annotation.Nullable;
+
+import java.util.concurrent.TimeUnit;
 
 import static android.arch.persistence.room.ForeignKey.CASCADE;
 import static org.schabi.newpipe.database.stream.model.StreamStateEntity.JOIN_STREAM_ID;
@@ -22,6 +25,12 @@ public class StreamStateEntity {
     final public static String JOIN_STREAM_ID       = "stream_id";
     final public static String STREAM_PROGRESS_TIME = "progress_time";
 
+
+    /** Playback state will not be saved, if playback time less than this threshold */
+    private static final int PLAYBACK_SAVE_THRESHOLD_START_SECONDS = 5;
+    /** Playback state will not be saved, if time left less than this threshold */
+    private static final int PLAYBACK_SAVE_THRESHOLD_END_SECONDS = 10;
+
     @ColumnInfo(name = JOIN_STREAM_ID)
     private long streamUid;
 
@@ -48,4 +57,18 @@ public class StreamStateEntity {
     public void setProgressTime(long progressTime) {
         this.progressTime = progressTime;
     }
+
+    public boolean isValid(int durationInSeconds) {
+        final int seconds = (int) TimeUnit.MILLISECONDS.toSeconds(progressTime);
+        return seconds > PLAYBACK_SAVE_THRESHOLD_START_SECONDS
+                && seconds < durationInSeconds - PLAYBACK_SAVE_THRESHOLD_END_SECONDS;
+    }
+
+    @Override
+    public boolean equals(@Nullable Object obj) {
+        if (obj instanceof StreamStateEntity) {
+            return ((StreamStateEntity) obj).streamUid == streamUid
+                    && ((StreamStateEntity) obj).progressTime == progressTime;
+        } else return false;
+    }
 }

app/src/main/java/org/schabi/newpipe/download/DownloadActivity.java

@@ -47,7 +47,7 @@ public class DownloadActivity extends AppCompatActivity {
             @Override
             public void onGlobalLayout() {
                 updateFragments();
-                getWindow().getDecorView().getViewTreeObserver().removeGlobalOnLayoutListener(this);
+                getWindow().getDecorView().getViewTreeObserver().removeOnGlobalLayoutListener(this);
             }
         });
     }
@@ -55,12 +55,13 @@ public class DownloadActivity extends AppCompatActivity {
     private void updateFragments() {
         MissionsFragment fragment = new MissionsFragment();
 
-        getFragmentManager().beginTransaction()
+        getSupportFragmentManager().beginTransaction()
                 .replace(R.id.frame, fragment, MISSIONS_FRAGMENT_TAG)
                 .setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
                 .commit();
     }
 
+    @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         super.onCreateOptionsMenu(menu);
         MenuInflater inflater = getMenuInflater();
@@ -86,9 +87,4 @@ public class DownloadActivity extends AppCompatActivity {
                 return super.onOptionsItemSelected(item);
         }
     }
-
-    @Override
-    public void onRestoreInstanceState(Bundle inState){
-        super.onRestoreInstanceState(inState);
-    }
 }

app/src/main/java/org/schabi/newpipe/download/DownloadDialog.java

@@ -1,14 +1,24 @@
 package org.schabi.newpipe.download;
 
+import android.app.Activity;
+import android.content.ComponentName;
 import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
 import android.content.SharedPreferences;
+import android.net.Uri;
 import android.os.Bundle;
+import android.os.Environment;
+import android.os.IBinder;
 import android.preference.PreferenceManager;
 import android.support.annotation.IdRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
+import android.support.annotation.StringRes;
 import android.support.v4.app.DialogFragment;
+import android.support.v4.provider.DocumentFile;
 import android.support.v7.app.AlertDialog;
+import android.support.v7.view.menu.ActionMenuItemView;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;
 import android.util.SparseArray;
@@ -24,6 +34,8 @@ import android.widget.Spinner;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import com.nononsenseapps.filepicker.Utils;
+
 import org.schabi.newpipe.MainActivity;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.MediaFormat;
@@ -34,7 +46,10 @@ import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.extractor.stream.SubtitlesStream;
 import org.schabi.newpipe.extractor.stream.VideoStream;
 import org.schabi.newpipe.extractor.utils.Localization;
+import org.schabi.newpipe.report.ErrorActivity;
+import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.settings.NewPipeSettings;
+import org.schabi.newpipe.util.FilePickerActivityHelper;
 import org.schabi.newpipe.util.FilenameUtils;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.PermissionHelper;
@@ -43,19 +58,28 @@ import org.schabi.newpipe.util.StreamItemAdapter;
 import org.schabi.newpipe.util.StreamItemAdapter.StreamSizeWrapper;
 import org.schabi.newpipe.util.ThemeHelper;
 
+import java.io.File;
+import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 
 import icepick.Icepick;
 import icepick.State;
 import io.reactivex.disposables.CompositeDisposable;
+import us.shandian.giga.io.StoredDirectoryHelper;
+import us.shandian.giga.io.StoredFileHelper;
 import us.shandian.giga.postprocessing.Postprocessing;
+import us.shandian.giga.service.DownloadManager;
 import us.shandian.giga.service.DownloadManagerService;
+import us.shandian.giga.service.DownloadManagerService.DownloadManagerBinder;
+import us.shandian.giga.service.MissionState;
 
 public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheckedChangeListener, AdapterView.OnItemSelectedListener {
     private static final String TAG = "DialogFragment";
     private static final boolean DEBUG = MainActivity.DEBUG;
+    private static final int REQUEST_DOWNLOAD_SAVE_AS = 0x1230;
 
     @State
     protected StreamInfo currentInfo;
@@ -80,7 +104,7 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
 
     private EditText nameEditText;
     private Spinner streamsSpinner;
-    private RadioGroup radioVideoAudioGroup;
+    private RadioGroup radioStreamsGroup;
     private TextView threadsCountTextView;
     private SeekBar threadsSeekBar;
 
@@ -155,12 +179,15 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
         super.onCreate(savedInstanceState);
         if (DEBUG)
             Log.d(TAG, "onCreate() called with: savedInstanceState = [" + savedInstanceState + "]");
+
         if (!PermissionHelper.checkStoragePermissions(getActivity(), PermissionHelper.DOWNLOAD_DIALOG_REQUEST_CODE)) {
             getDialog().dismiss();
             return;
         }
 
-        setStyle(STYLE_NO_TITLE, ThemeHelper.getDialogTheme(getContext()));
+        context = getContext();
+
+        setStyle(STYLE_NO_TITLE, ThemeHelper.getDialogTheme(context));
         Icepick.restoreInstanceState(this, savedInstanceState);
 
         SparseArray<SecondaryStreamHelper<AudioStream>> secondaryStreams = new SparseArray<>(4);
@@ -177,9 +204,33 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
             }
         }
 
-        this.videoStreamsAdapter = new StreamItemAdapter<>(getContext(), wrappedVideoStreams, secondaryStreams);
-        this.audioStreamsAdapter = new StreamItemAdapter<>(getContext(), wrappedAudioStreams);
-        this.subtitleStreamsAdapter = new StreamItemAdapter<>(getContext(), wrappedSubtitleStreams);
+        this.videoStreamsAdapter = new StreamItemAdapter<>(context, wrappedVideoStreams, secondaryStreams);
+        this.audioStreamsAdapter = new StreamItemAdapter<>(context, wrappedAudioStreams);
+        this.subtitleStreamsAdapter = new StreamItemAdapter<>(context, wrappedSubtitleStreams);
+
+        Intent intent = new Intent(context, DownloadManagerService.class);
+        context.startService(intent);
+
+        context.bindService(intent, new ServiceConnection() {
+            @Override
+            public void onServiceConnected(ComponentName cname, IBinder service) {
+                DownloadManagerBinder mgr = (DownloadManagerBinder) service;
+
+                mainStorageAudio = mgr.getMainStorageAudio();
+                mainStorageVideo = mgr.getMainStorageVideo();
+                downloadManager = mgr.getDownloadManager();
+                askForSavePath = mgr.askForSavePath();
+
+                okButton.setEnabled(true);
+
+                context.unbindService(this);
+            }
+
+            @Override
+            public void onServiceDisconnected(ComponentName name) {
+                // nothing to do
+            }
+        }, Context.BIND_AUTO_CREATE);
     }
 
     @Override
@@ -204,8 +255,8 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
         threadsCountTextView = view.findViewById(R.id.threads_count);
         threadsSeekBar = view.findViewById(R.id.threads);
 
-        radioVideoAudioGroup = view.findViewById(R.id.video_audio_group);
-        radioVideoAudioGroup.setOnCheckedChangeListener(this);
+        radioStreamsGroup = view.findViewById(R.id.video_audio_group);
+        radioStreamsGroup.setOnCheckedChangeListener(this);
 
         initToolbar(view.findViewById(R.id.toolbar));
         setupDownloadOptions();
@@ -240,17 +291,17 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
         disposables.clear();
 
         disposables.add(StreamSizeWrapper.fetchSizeForWrapper(wrappedVideoStreams).subscribe(result -> {
-            if (radioVideoAudioGroup.getCheckedRadioButtonId() == R.id.video_button) {
+            if (radioStreamsGroup.getCheckedRadioButtonId() == R.id.video_button) {
                 setupVideoSpinner();
             }
         }));
         disposables.add(StreamSizeWrapper.fetchSizeForWrapper(wrappedAudioStreams).subscribe(result -> {
-            if (radioVideoAudioGroup.getCheckedRadioButtonId() == R.id.audio_button) {
+            if (radioStreamsGroup.getCheckedRadioButtonId() == R.id.audio_button) {
                 setupAudioSpinner();
             }
         }));
         disposables.add(StreamSizeWrapper.fetchSizeForWrapper(wrappedSubtitleStreams).subscribe(result -> {
-            if (radioVideoAudioGroup.getCheckedRadioButtonId() == R.id.subtitle_button) {
+            if (radioStreamsGroup.getCheckedRadioButtonId() == R.id.subtitle_button) {
                 setupSubtitleSpinner();
             }
         }));
@@ -263,22 +314,55 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
     }
 
     @Override
-    public void onSaveInstanceState(Bundle outState) {
+    public void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);
         Icepick.saveInstanceState(this, outState);
     }
 
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (requestCode == REQUEST_DOWNLOAD_SAVE_AS && resultCode == Activity.RESULT_OK) {
+            if (data.getData() == null) {
+                showFailedDialog(R.string.general_error);
+                return;
+            }
+
+            if (FilePickerActivityHelper.isOwnFileUri(context, data.getData())) {
+                File file = Utils.getFileForUri(data.getData());
+                checkSelectedDownload(null, Uri.fromFile(file), file.getName(), StoredFileHelper.DEFAULT_MIME);
+                return;
+            }
+
+            DocumentFile docFile = DocumentFile.fromSingleUri(context, data.getData());
+            if (docFile == null) {
+                showFailedDialog(R.string.general_error);
+                return;
+            }
+
+            // check if the selected file was previously used
+            checkSelectedDownload(null, data.getData(), docFile.getName(), docFile.getType());
+        }
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Inits
     //////////////////////////////////////////////////////////////////////////*/
 
     private void initToolbar(Toolbar toolbar) {
         if (DEBUG) Log.d(TAG, "initToolbar() called with: toolbar = [" + toolbar + "]");
+
+        boolean isLight = ThemeHelper.isLightThemeSelected(getActivity());
+
         toolbar.setTitle(R.string.download_dialog_title);
-        toolbar.setNavigationIcon(ThemeHelper.isLightThemeSelected(getActivity()) ? R.drawable.ic_arrow_back_black_24dp : R.drawable.ic_arrow_back_white_24dp);
+        toolbar.setNavigationIcon(isLight ? R.drawable.ic_arrow_back_black_24dp : R.drawable.ic_arrow_back_white_24dp);
         toolbar.inflateMenu(R.menu.dialog_url);
         toolbar.setNavigationOnClickListener(v -> getDialog().dismiss());
 
+        okButton = toolbar.findViewById(R.id.okay);
+        okButton.setEnabled(false);// disable until the download service connection is done
+
         toolbar.setOnMenuItemClickListener(item -> {
             if (item.getItemId() == R.id.okay) {
                 prepareSelectedDownload();
@@ -346,7 +430,7 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
         if (DEBUG)
             Log.d(TAG, "onItemSelected() called with: parent = [" + parent + "], view = [" + view + "], position = [" + position + "], id = [" + id + "]");
-        switch (radioVideoAudioGroup.getCheckedRadioButtonId()) {
+        switch (radioStreamsGroup.getCheckedRadioButtonId()) {
             case R.id.audio_button:
                 selectedAudioIndex = position;
                 break;
@@ -370,9 +454,9 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
     protected void setupDownloadOptions() {
         setRadioButtonsState(false);
 
-        final RadioButton audioButton = radioVideoAudioGroup.findViewById(R.id.audio_button);
-        final RadioButton videoButton = radioVideoAudioGroup.findViewById(R.id.video_button);
-        final RadioButton subtitleButton = radioVideoAudioGroup.findViewById(R.id.subtitle_button);
+        final RadioButton audioButton = radioStreamsGroup.findViewById(R.id.audio_button);
+        final RadioButton videoButton = radioStreamsGroup.findViewById(R.id.video_button);
+        final RadioButton subtitleButton = radioStreamsGroup.findViewById(R.id.subtitle_button);
         final boolean isVideoStreamsAvailable = videoStreamsAdapter.getCount() > 0;
         final boolean isAudioStreamsAvailable = audioStreamsAdapter.getCount() > 0;
         final boolean isSubtitleStreamsAvailable = subtitleStreamsAdapter.getCount() > 0;
@@ -397,9 +481,9 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
     }
 
     private void setRadioButtonsState(boolean enabled) {
-        radioVideoAudioGroup.findViewById(R.id.audio_button).setEnabled(enabled);
-        radioVideoAudioGroup.findViewById(R.id.video_button).setEnabled(enabled);
-        radioVideoAudioGroup.findViewById(R.id.subtitle_button).setEnabled(enabled);
+        radioStreamsGroup.findViewById(R.id.audio_button).setEnabled(enabled);
+        radioStreamsGroup.findViewById(R.id.video_button).setEnabled(enabled);
+        radioStreamsGroup.findViewById(R.id.subtitle_button).setEnabled(enabled);
     }
 
     private int getSubtitleIndexBy(List<SubtitlesStream> streams) {
@@ -434,99 +518,320 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
         return 0;
     }
 
+    StoredDirectoryHelper mainStorageAudio = null;
+    StoredDirectoryHelper mainStorageVideo = null;
+    DownloadManager downloadManager = null;
+    ActionMenuItemView okButton = null;
+    Context context;
+    boolean askForSavePath;
+
+    private String getNameEditText() {
+        String str = nameEditText.getText().toString().trim();
+
+        return FilenameUtils.createFilename(context, str.isEmpty() ? currentInfo.getName() : str);
+    }
+
+    private void showFailedDialog(@StringRes int msg) {
+        new AlertDialog.Builder(context)
+                .setTitle(R.string.general_error)
+                .setMessage(msg)
+                .setNegativeButton(android.R.string.ok, null)
+                .create()
+                .show();
+    }
+
+    private void showErrorActivity(Exception e) {
+        ErrorActivity.reportError(
+                context,
+                Collections.singletonList(e),
+                null,
+                null,
+                ErrorActivity.ErrorInfo.make(UserAction.SOMETHING_ELSE, "-", "-", R.string.general_error)
+        );
+    }
+
     private void prepareSelectedDownload() {
-        final Context context = getContext();
-        Stream stream;
-        String location;
-        char kind;
+        StoredDirectoryHelper mainStorage;
+        MediaFormat format;
+        String mime;
 
-        String fileName = nameEditText.getText().toString().trim();
-        if (fileName.isEmpty())
-            fileName = FilenameUtils.createFilename(context, currentInfo.getName());
+        // first, build the filename and get the output folder (if possible)
+        // later, run a very very very large file checking logic
 
-        switch (radioVideoAudioGroup.getCheckedRadioButtonId()) {
+        String filename = getNameEditText().concat(".");
+
+        switch (radioStreamsGroup.getCheckedRadioButtonId()) {
             case R.id.audio_button:
-                stream = audioStreamsAdapter.getItem(selectedAudioIndex);
-                location = NewPipeSettings.getAudioDownloadPath(context);
-                kind = 'a';
+                mainStorage = mainStorageAudio;
+                format = audioStreamsAdapter.getItem(selectedAudioIndex).getFormat();
+                mime = format.mimeType;
+                filename += format.suffix;
                 break;
             case R.id.video_button:
-                stream = videoStreamsAdapter.getItem(selectedVideoIndex);
-                location = NewPipeSettings.getVideoDownloadPath(context);
-                kind = 'v';
+                mainStorage = mainStorageVideo;
+                format = videoStreamsAdapter.getItem(selectedVideoIndex).getFormat();
+                mime = format.mimeType;
+                filename += format.suffix;
                 break;
             case R.id.subtitle_button:
-                stream = subtitleStreamsAdapter.getItem(selectedSubtitleIndex);
-                location = NewPipeSettings.getVideoDownloadPath(context);// assume that subtitle & video go together
-                kind = 's';
+                mainStorage = mainStorageVideo;// subtitle & video files go together
+                format = subtitleStreamsAdapter.getItem(selectedSubtitleIndex).getFormat();
+                mime = format.mimeType;
+                filename += format == MediaFormat.TTML ? MediaFormat.SRT.suffix : format.suffix;
+                break;
+            default:
+                throw new RuntimeException("No stream selected");
+        }
+
+        if (mainStorage == null || askForSavePath) {
+            // This part is called if with SAF preferred:
+            //  * older android version running
+            //  * save path not defined (via download settings)
+            //  * the user checked the "ask where to download" option
+
+            if (!askForSavePath)
+                Toast.makeText(context, getString(R.string.no_available_dir), Toast.LENGTH_LONG).show();
+
+            if (NewPipeSettings.useStorageAccessFramework(context)) {
+                StoredFileHelper.requestSafWithFileCreation(this, REQUEST_DOWNLOAD_SAVE_AS, filename, mime);
+            } else {
+                File initialSavePath;
+                if (radioStreamsGroup.getCheckedRadioButtonId() == R.id.audio_button)
+                    initialSavePath = NewPipeSettings.getDir(Environment.DIRECTORY_MUSIC);
+                else
+                    initialSavePath = NewPipeSettings.getDir(Environment.DIRECTORY_MOVIES);
+
+                initialSavePath = new File(initialSavePath, filename);
+                startActivityForResult(
+                        FilePickerActivityHelper.chooseFileToSave(context, initialSavePath.getAbsolutePath()),
+                        REQUEST_DOWNLOAD_SAVE_AS
+                );
+            }
+
+            return;
+        }
+
+        // check for existing file with the same name
+        checkSelectedDownload(mainStorage, mainStorage.findFile(filename), filename, mime);
+    }
+
+    private void checkSelectedDownload(StoredDirectoryHelper mainStorage, Uri targetFile, String filename, String mime) {
+        StoredFileHelper storage;
+
+        try {
+            if (mainStorage == null) {
+                // using SAF on older android version
+                storage = new StoredFileHelper(context, null, targetFile, "");
+            } else if (targetFile == null) {
+                // the file does not exist, but it is probably used in a pending download
+                storage = new StoredFileHelper(mainStorage.getUri(), filename, mime, mainStorage.getTag());
+            } else {
+                // the target filename is already use, attempt to use it
+                storage = new StoredFileHelper(context, mainStorage.getUri(), targetFile, mainStorage.getTag());
+            }
+        } catch (Exception e) {
+            showErrorActivity(e);
+            return;
+        }
+
+        // check if is our file
+        MissionState state = downloadManager.checkForExistingMission(storage);
+        @StringRes int msgBtn;
+        @StringRes int msgBody;
+
+        switch (state) {
+            case Finished:
+                msgBtn = R.string.overwrite;
+                msgBody = R.string.overwrite_finished_warning;
+                break;
+            case Pending:
+                msgBtn = R.string.overwrite;
+                msgBody = R.string.download_already_pending;
+                break;
+            case PendingRunning:
+                msgBtn = R.string.generate_unique_name;
+                msgBody = R.string.download_already_running;
+                break;
+            case None:
+                if (mainStorage == null) {
+                    // This part is called if:
+                    // * using SAF on older android version
+                    // * save path not defined
+                    // * if the file exists overwrite it, is not necessary ask
+                    if (!storage.existsAsFile() && !storage.create()) {
+                        showFailedDialog(R.string.error_file_creation);
+                        return;
+                    }
+                    continueSelectedDownload(storage);
+                    return;
+                } else if (targetFile == null) {
+                    // This part is called if:
+                    // * the filename is not used in a pending/finished download
+                    // * the file does not exists, create
+
+                    if (!mainStorage.mkdirs()) {
+                        showFailedDialog(R.string.error_path_creation);
+                        return;
+                    }
+
+                    storage = mainStorage.createFile(filename, mime);
+                    if (storage == null || !storage.canWrite()) {
+                        showFailedDialog(R.string.error_file_creation);
+                        return;
+                    }
+
+                    continueSelectedDownload(storage);
+                    return;
+                }
+                msgBtn = R.string.overwrite;
+                msgBody = R.string.overwrite_unrelated_warning;
                 break;
             default:
                 return;
         }
 
-        int threads;
 
-        if (radioVideoAudioGroup.getCheckedRadioButtonId() == R.id.subtitle_button) {
-            threads = 1;// use unique thread for subtitles due small file size
-            fileName += ".srt";// final subtitle format
-        } else {
-            threads = threadsSeekBar.getProgress() + 1;
-            fileName += "." + stream.getFormat().getSuffix();
+        AlertDialog.Builder askDialog = new AlertDialog.Builder(context)
+                .setTitle(R.string.download_dialog_title)
+                .setMessage(msgBody)
+                .setNegativeButton(android.R.string.cancel, null);
+        final StoredFileHelper finalStorage = storage;
+
+
+        if (mainStorage == null) {
+            // This part is called if:
+            // * using SAF on older android version
+            // * save path not defined
+            switch (state) {
+                case Pending:
+                case Finished:
+                    askDialog.setPositiveButton(msgBtn, (dialog, which) -> {
+                        dialog.dismiss();
+                        downloadManager.forgetMission(finalStorage);
+                        continueSelectedDownload(finalStorage);
+                    });
+                    break;
+            }
+
+            askDialog.create().show();
+            return;
         }
 
-        final String finalFileName = fileName;
+        askDialog.setPositiveButton(msgBtn, (dialog, which) -> {
+            dialog.dismiss();
 
-        DownloadManagerService.checkForRunningMission(context, location, fileName, (listed, finished) -> {
-            // should be safe run the following code without "getActivity().runOnUiThread()"
-            if (listed) {
-                AlertDialog.Builder builder = new AlertDialog.Builder(context);
-                builder.setTitle(R.string.download_dialog_title)
-                        .setMessage(finished ? R.string.overwrite_warning : R.string.download_already_running)
-                        .setPositiveButton(
-                                finished ? R.string.overwrite : R.string.generate_unique_name,
-                                (dialog, which) -> downloadSelected(context, stream, location, finalFileName, kind, threads)
-                        )
-                        .setNegativeButton(android.R.string.cancel, (dialog, which) -> {
-                            dialog.cancel();
-                        })
-                        .create()
-                        .show();
-            } else {
-                downloadSelected(context, stream, location, finalFileName, kind, threads);
+            StoredFileHelper storageNew;
+            switch (state) {
+                case Finished:
+                case Pending:
+                    downloadManager.forgetMission(finalStorage);
+                case None:
+                    if (targetFile == null) {
+                        storageNew = mainStorage.createFile(filename, mime);
+                    } else {
+                        try {
+                            // try take (or steal) the file
+                            storageNew = new StoredFileHelper(context, mainStorage.getUri(), targetFile, mainStorage.getTag());
+                        } catch (IOException e) {
+                            Log.e(TAG, "Failed to take (or steal) the file in " + targetFile.toString());
+                            storageNew = null;
+                        }
+                    }
+
+                    if (storageNew != null && storageNew.canWrite())
+                        continueSelectedDownload(storageNew);
+                    else
+                        showFailedDialog(R.string.error_file_creation);
+                    break;
+                case PendingRunning:
+                    storageNew = mainStorage.createUniqueFile(filename, mime);
+                    if (storageNew == null)
+                        showFailedDialog(R.string.error_file_creation);
+                    else
+                        continueSelectedDownload(storageNew);
+                    break;
             }
         });
+
+        askDialog.create().show();
     }
 
-    private void downloadSelected(Context context, Stream selectedStream, String location, String fileName, char kind, int threads) {
+    private void continueSelectedDownload(@NonNull StoredFileHelper storage) {
+        if (!storage.canWrite()) {
+            showFailedDialog(R.string.permission_denied);
+            return;
+        }
+
+        // check if the selected file has to be overwritten, by simply checking its length
+        try {
+            if (storage.length() > 0) storage.truncate();
+        } catch (IOException e) {
+            Log.e(TAG, "failed to truncate the file: " + storage.getUri().toString(), e);
+            showFailedDialog(R.string.overwrite_failed);
+            return;
+        }
+
+        Stream selectedStream;
+        char kind;
+        int threads = threadsSeekBar.getProgress() + 1;
         String[] urls;
         String psName = null;
         String[] psArgs = null;
         String secondaryStreamUrl = null;
         long nearLength = 0;
 
-        if (selectedStream instanceof VideoStream) {
-            SecondaryStreamHelper<AudioStream> secondaryStream = videoStreamsAdapter
-                    .getAllSecondary()
-                    .get(wrappedVideoStreams.getStreamsList().indexOf(selectedStream));
+        // more download logic: select muxer, subtitle converter, etc.
+        switch (radioStreamsGroup.getCheckedRadioButtonId()) {
+            case R.id.audio_button:
+                kind = 'a';
+                selectedStream = audioStreamsAdapter.getItem(selectedAudioIndex);
 
-            if (secondaryStream != null) {
-                secondaryStreamUrl = secondaryStream.getStream().getUrl();
-                psName = selectedStream.getFormat() == MediaFormat.MPEG_4 ? Postprocessing.ALGORITHM_MP4_DASH_MUXER : Postprocessing.ALGORITHM_WEBM_MUXER;
-                psArgs = null;
-                long videoSize = wrappedVideoStreams.getSizeInBytes((VideoStream) selectedStream);
-
-                // set nearLength, only, if both sizes are fetched or known. this probably does not work on weak internet connections
-                if (secondaryStream.getSizeInBytes() > 0 && videoSize > 0) {
-                    nearLength = secondaryStream.getSizeInBytes() + videoSize;
+                if (selectedStream.getFormat() == MediaFormat.M4A) {
+                    psName = Postprocessing.ALGORITHM_M4A_NO_DASH;
                 }
-            }
-        } else if ((selectedStream instanceof SubtitlesStream) && selectedStream.getFormat() == MediaFormat.TTML) {
-            psName = Postprocessing.ALGORITHM_TTML_CONVERTER;
-            psArgs = new String[]{
-                    selectedStream.getFormat().getSuffix(),
-                    "false",// ignore empty frames
-                    "false",// detect youtube duplicate lines
-            };
+                break;
+            case R.id.video_button:
+                kind = 'v';
+                selectedStream = videoStreamsAdapter.getItem(selectedVideoIndex);
+
+                SecondaryStreamHelper<AudioStream> secondaryStream = videoStreamsAdapter
+                        .getAllSecondary()
+                        .get(wrappedVideoStreams.getStreamsList().indexOf(selectedStream));
+
+                if (secondaryStream != null) {
+                    secondaryStreamUrl = secondaryStream.getStream().getUrl();
+
+                    if (selectedStream.getFormat() == MediaFormat.MPEG_4)
+                        psName = Postprocessing.ALGORITHM_MP4_FROM_DASH_MUXER;
+                    else
+                        psName = Postprocessing.ALGORITHM_WEBM_MUXER;
+
+                    psArgs = null;
+                    long videoSize = wrappedVideoStreams.getSizeInBytes((VideoStream) selectedStream);
+
+                    // set nearLength, only, if both sizes are fetched or known. This probably
+                    // does not work on slow networks but is later updated in the downloader
+                    if (secondaryStream.getSizeInBytes() > 0 && videoSize > 0) {
+                        nearLength = secondaryStream.getSizeInBytes() + videoSize;
+                    }
+                }
+                break;
+            case R.id.subtitle_button:
+                threads = 1;// use unique thread for subtitles due small file size
+                kind = 's';
+                selectedStream = subtitleStreamsAdapter.getItem(selectedSubtitleIndex);
+
+                if (selectedStream.getFormat() == MediaFormat.TTML) {
+                    psName = Postprocessing.ALGORITHM_TTML_CONVERTER;
+                    psArgs = new String[]{
+                            selectedStream.getFormat().getSuffix(),
+                            "false",// ignore empty frames
+                            "false",// detect youtube duplicate lines
+                    };
+                }
+                break;
+            default:
+                return;
         }
 
         if (secondaryStreamUrl == null) {
@@ -535,8 +840,8 @@ public class DownloadDialog extends DialogFragment implements RadioGroup.OnCheck
             urls = new String[]{selectedStream.getUrl(), secondaryStreamUrl};
         }
 
-        DownloadManagerService.startMission(context, urls, location, fileName, kind, threads, currentInfo.getUrl(), psName, psArgs, nearLength);
+        DownloadManagerService.startMission(context, urls, storage, kind, threads, currentInfo.getUrl(), psName, psArgs, nearLength);
 
-        getDialog().dismiss();
+        dismiss();
     }
 }

app/src/main/java/org/schabi/newpipe/download/ExtSDDownloadFailedActivity.java

@@ -1,38 +0,0 @@
-package org.schabi.newpipe.download;
-
-import android.app.AlertDialog;
-import android.content.DialogInterface;
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v7.app.AppCompatActivity;
-
-import org.schabi.newpipe.R;
-import org.schabi.newpipe.settings.NewPipeSettings;
-import org.schabi.newpipe.util.ServiceHelper;
-import org.schabi.newpipe.util.ThemeHelper;
-
-public class ExtSDDownloadFailedActivity extends AppCompatActivity {
-    @Override
-    protected void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        ThemeHelper.setTheme(this, ServiceHelper.getSelectedServiceId(this));
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-        new AlertDialog.Builder(this)
-                .setTitle(R.string.download_to_sdcard_error_title)
-                .setMessage(R.string.download_to_sdcard_error_message)
-                .setPositiveButton(R.string.yes, (DialogInterface dialogInterface, int i) -> {
-                    NewPipeSettings.resetDownloadFolders(this);
-                    finish();
-                })
-                .setNegativeButton(R.string.cancel, (DialogInterface dialogInterface, int i) -> {
-                    dialogInterface.dismiss();
-                    finish();
-                })
-                .create()
-                .show();
-    }
-}

app/src/main/java/org/schabi/newpipe/fragments/BaseStateFragment.java

@@ -180,7 +180,7 @@ public abstract class BaseStateFragment<I> extends BaseFragment implements ViewC
         }
 
         if (exception instanceof ReCaptchaException) {
-            onReCaptchaException();
+            onReCaptchaException((ReCaptchaException) exception);
             return true;
         } else if (exception instanceof IOException) {
             showError(getString(R.string.network_error), true);
@@ -190,11 +190,13 @@ public abstract class BaseStateFragment<I> extends BaseFragment implements ViewC
         return false;
     }
 
-    public void onReCaptchaException() {
+    public void onReCaptchaException(ReCaptchaException exception) {
         if (DEBUG) Log.d(TAG, "onReCaptchaException() called");
         Toast.makeText(activity, R.string.recaptcha_request_toast, Toast.LENGTH_LONG).show();
         // Starting ReCaptcha Challenge Activity
-        startActivityForResult(new Intent(activity, ReCaptchaActivity.class), ReCaptchaActivity.RECAPTCHA_REQUEST);
+        Intent intent = new Intent(activity, ReCaptchaActivity.class);
+        intent.putExtra(ReCaptchaActivity.RECAPTCHA_URL_EXTRA, exception.getUrl());
+        startActivityForResult(intent, ReCaptchaActivity.RECAPTCHA_REQUEST);
 
         showError(getString(R.string.recaptcha_request_toast), false);
     }
@@ -230,21 +232,4 @@ public abstract class BaseStateFragment<I> extends BaseFragment implements ViewC
         ErrorActivity.reportError(getContext(), exception, MainActivity.class, rootView,
                 ErrorActivity.ErrorInfo.make(userAction, serviceName, request, errorId));
     }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Utils
-    //////////////////////////////////////////////////////////////////////////*/
-
-    protected void openUrlInBrowser(String url) {
-        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
-        startActivity(Intent.createChooser(intent, activity.getString(R.string.share_dialog_title)));
-    }
-
-    protected void shareUrl(String subject, String url) {
-        Intent intent = new Intent(Intent.ACTION_SEND);
-        intent.setType("text/plain");
-        intent.putExtra(Intent.EXTRA_SUBJECT, subject);
-        intent.putExtra(Intent.EXTRA_TEXT, url);
-        startActivity(Intent.createChooser(intent, getString(R.string.share_dialog_title)));
-    }
 }

app/src/main/java/org/schabi/newpipe/fragments/EmptyFragment.java

@@ -0,0 +1,17 @@
+package org.schabi.newpipe.fragments;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.schabi.newpipe.BaseFragment;
+import org.schabi.newpipe.R;
+
+public class EmptyFragment extends BaseFragment {
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_empty, container, false);
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/MainFragment.java

@@ -50,6 +50,8 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
         super.onCreate(savedInstanceState);
         setHasOptionsMenu(true);
 
+        destroyOldFragments();
+
         tabsManager = TabsManager.getManager(activity);
         tabsManager.setSavedTabsListener(() -> {
             if (DEBUG) {
@@ -63,6 +65,17 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
         });
     }
 
+    private void destroyOldFragments() {
+        for (Fragment fragment : getChildFragmentManager().getFragments()) {
+            if (fragment != null) {
+                getChildFragmentManager()
+                        .beginTransaction()
+                        .remove(fragment)
+                        .commitNowAllowingStateLoss();
+            }
+        }
+    }
+
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_main, container, false);
@@ -98,6 +111,8 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
     public void onDestroy() {
         super.onDestroy();
         tabsManager.unsetSavedTabsListener();
+        pagerAdapter = null;
+        viewPager.setAdapter(pagerAdapter);
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -177,6 +192,7 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
     }
 
     private class SelectedTabsPagerAdapter extends FragmentPagerAdapter {
+
         private SelectedTabsPagerAdapter(FragmentManager fragmentManager) {
             super(fragmentManager);
         }

app/src/main/java/org/schabi/newpipe/fragments/detail/TabAdaptor.java

@@ -0,0 +1,86 @@
+package org.schabi.newpipe.fragments.detail;
+
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentPagerAdapter;
+import android.view.ViewGroup;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class TabAdaptor extends FragmentPagerAdapter {
+
+    private final List<Fragment> mFragmentList = new ArrayList<>();
+    private final List<String> mFragmentTitleList = new ArrayList<>();
+    private final FragmentManager fragmentManager;
+
+    public TabAdaptor(FragmentManager fm) {
+        super(fm);
+        this.fragmentManager = fm;
+    }
+
+    @Override
+    public Fragment getItem(int position) {
+        return mFragmentList.get(position);
+    }
+
+    @Override
+    public int getCount() {
+        return mFragmentList.size();
+    }
+
+    public void addFragment(Fragment fragment, String title) {
+        mFragmentList.add(fragment);
+        mFragmentTitleList.add(title);
+    }
+
+    public void clearAllItems() {
+        mFragmentList.clear();
+        mFragmentTitleList.clear();
+    }
+
+    public void removeItem(int position){
+        mFragmentList.remove(position == 0 ? 0 : position - 1);
+        mFragmentTitleList.remove(position == 0 ? 0 : position - 1);
+    }
+
+    public void updateItem(int position, Fragment fragment){
+        mFragmentList.set(position, fragment);
+    }
+
+    public void updateItem(String title, Fragment fragment){
+        int index = mFragmentTitleList.indexOf(title);
+        if(index != -1){
+            updateItem(index, fragment);
+        }
+    }
+
+    @Override
+    public int getItemPosition(Object object) {
+        if (mFragmentList.contains(object)) return mFragmentList.indexOf(object);
+        else return POSITION_NONE;
+    }
+
+    public int getItemPositionByTitle(String title) {
+        return mFragmentTitleList.indexOf(title);
+    }
+
+    @Nullable
+    public String getItemTitle(int position) {
+        if (position < 0 || position >= mFragmentTitleList.size()) {
+            return null;
+        }
+        return mFragmentTitleList.get(position);
+    }
+
+    public void notifyDataSetUpdate(){
+        notifyDataSetChanged();
+    }
+
+    @Override
+    public void destroyItem(ViewGroup container, int position, Object object) {
+        fragmentManager.beginTransaction().remove((Fragment) object).commitNowAllowingStateLoss();
+    }
+
+}

app/src/main/java/org/schabi/newpipe/fragments/list/BaseListFragment.java

@@ -2,7 +2,6 @@ package org.schabi.newpipe.fragments.list;
 
 import android.app.Activity;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -22,20 +21,20 @@ import android.view.View;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
+import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.fragments.BaseStateFragment;
 import org.schabi.newpipe.fragments.OnScrollBelowItemsListener;
 import org.schabi.newpipe.info_list.InfoItemDialog;
 import org.schabi.newpipe.info_list.InfoListAdapter;
-import org.schabi.newpipe.local.dialog.PlaylistAppendDialog;
-import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
 import org.schabi.newpipe.util.StateSaver;
+import org.schabi.newpipe.util.StreamDialogEntry;
 
-import java.util.Collections;
 import java.util.List;
 import java.util.Queue;
 
@@ -63,6 +62,11 @@ public abstract class BaseListFragment<I, N> extends BaseStateFragment<I> implem
         infoListAdapter = new InfoListAdapter(activity);
     }
 
+    @Override
+    public void onDetach() {
+        super.onDetach();
+    }
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -220,6 +224,13 @@ public abstract class BaseListFragment<I, N> extends BaseStateFragment<I> implem
             }
         });
 
+        infoListAdapter.setOnCommentsSelectedListener(new OnClickGesture<CommentsInfoItem>() {
+            @Override
+            public void selected(CommentsInfoItem selectedItem) {
+                onItemSelected(selectedItem);
+            }
+        });
+
         itemsList.clearOnScrollListeners();
         itemsList.addOnScrollListener(new OnScrollBelowItemsListener() {
             @Override
@@ -241,41 +252,32 @@ public abstract class BaseListFragment<I, N> extends BaseStateFragment<I> implem
         }
     }
 
+
+
+
     protected void showStreamDialog(final StreamInfoItem item) {
         final Context context = getContext();
         final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || getActivity() == null) return;
+        if (context == null || context.getResources() == null || activity == null) return;
 
-        final String[] commands = new String[]{
-                context.getResources().getString(R.string.enqueue_on_background),
-                context.getResources().getString(R.string.enqueue_on_popup),
-                context.getResources().getString(R.string.append_playlist),
-                context.getResources().getString(R.string.share)
-        };
+        if (item.getStreamType() == StreamType.AUDIO_STREAM) {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
+        } else {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.enqueue_on_popup,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.start_here_on_popup,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
+        }
 
-        final DialogInterface.OnClickListener actions = (dialogInterface, i) -> {
-            switch (i) {
-                case 0:
-                    NavigationHelper.enqueueOnBackgroundPlayer(context, new SinglePlayQueue(item));
-                    break;
-                case 1:
-                    NavigationHelper.enqueueOnPopupPlayer(activity, new SinglePlayQueue(item));
-                    break;
-                case 2:
-                    if (getFragmentManager() != null) {
-                        PlaylistAppendDialog.fromStreamInfoItems(Collections.singletonList(item))
-                                .show(getFragmentManager(), TAG);
-                    }
-                    break;
-                case 3:
-                    shareUrl(item.getName(), item.getUrl());
-                    break;
-                default:
-                    break;
-            }
-        };
-
-        new InfoItemDialog(getActivity(), item, commands, actions).show();
+        new InfoItemDialog(activity, item, StreamDialogEntry.getCommands(context), (dialog, which) ->
+            StreamDialogEntry.clickOn(which, this, item)).show();
     }
 
     /*//////////////////////////////////////////////////////////////////////////

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelFragment.java

@@ -1,8 +1,6 @@
 package org.schabi.newpipe.fragments.list.channel;
 
-import android.app.Activity;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
@@ -34,21 +32,18 @@ import org.schabi.newpipe.extractor.channel.ChannelInfo;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
-import org.schabi.newpipe.info_list.InfoItemDialog;
-import org.schabi.newpipe.local.dialog.PlaylistAppendDialog;
 import org.schabi.newpipe.local.subscription.SubscriptionService;
 import org.schabi.newpipe.player.playqueue.ChannelPlayQueue;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
-import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.util.AnimationUtils;
 import org.schabi.newpipe.util.ExtractorHelper;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
+import org.schabi.newpipe.util.ShareUtils;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
@@ -149,56 +144,6 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         return headerRootLayout;
     }
 
-    @Override
-    protected void showStreamDialog(final StreamInfoItem item) {
-        final Activity activity = getActivity();
-        final Context context = getContext();
-        if (context == null || context.getResources() == null || getActivity() == null) return;
-
-        final String[] commands = new String[]{
-                context.getResources().getString(R.string.enqueue_on_background),
-                context.getResources().getString(R.string.enqueue_on_popup),
-                context.getResources().getString(R.string.start_here_on_main),
-                context.getResources().getString(R.string.start_here_on_background),
-                context.getResources().getString(R.string.start_here_on_popup),
-                context.getResources().getString(R.string.append_playlist),
-                context.getResources().getString(R.string.share)
-        };
-
-        final DialogInterface.OnClickListener actions = (DialogInterface dialogInterface, int i) -> {
-            final int index = Math.max(infoListAdapter.getItemsList().indexOf(item), 0);
-            switch (i) {
-                case 0:
-                    NavigationHelper.enqueueOnBackgroundPlayer(context, new SinglePlayQueue(item));
-                    break;
-                case 1:
-                    NavigationHelper.enqueueOnPopupPlayer(activity, new SinglePlayQueue(item));
-                    break;
-                case 2:
-                    NavigationHelper.playOnMainPlayer(context, getPlayQueue(index));
-                    break;
-                case 3:
-                    NavigationHelper.playOnBackgroundPlayer(context, getPlayQueue(index));
-                    break;
-                case 4:
-                    NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(index));
-                    break;
-                case 5:
-                    if (getFragmentManager() != null) {
-                        PlaylistAppendDialog.fromStreamInfoItems(Collections.singletonList(item))
-                                .show(getFragmentManager(), TAG);
-                    }
-                    break;
-                case 6:
-                    shareUrl(item.getName(), item.getUrl());
-                    break;
-                default:
-                    break;
-            }
-        };
-
-        new InfoItemDialog(getActivity(), item, commands, actions).show();
-    }
     /*//////////////////////////////////////////////////////////////////////////
     // Menu
     //////////////////////////////////////////////////////////////////////////*/
@@ -233,10 +178,10 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
                 openRssFeed();
                 break;
             case R.id.menu_item_openInBrowser:
-                openUrlInBrowser(url);
+                ShareUtils.openUrlInBrowser(this.getContext(), currentInfo.getOriginalUrl());
                 break;
             case R.id.menu_item_share:
-                shareUrl(name, url);
+                ShareUtils.shareUrl(this.getContext(), name, currentInfo.getOriginalUrl());
                 break;
             default:
                 return super.onOptionsItemSelected(item);
@@ -439,11 +384,11 @@ public class ChannelFragment extends BaseListInfoFragment<ChannelInfo> {
         monitorSubscription(result);
 
         headerPlayAllButton.setOnClickListener(
-                view -> NavigationHelper.playOnMainPlayer(activity, getPlayQueue()));
+                view -> NavigationHelper.playOnMainPlayer(activity, getPlayQueue(), false));
         headerPopupButton.setOnClickListener(
-                view -> NavigationHelper.playOnPopupPlayer(activity, getPlayQueue()));
+                view -> NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(), false));
         headerBackgroundButton.setOnClickListener(
-                view -> NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue()));
+                view -> NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue(), false));
     }
 
     private PlayQueue getPlayQueue() {

app/src/main/java/org/schabi/newpipe/fragments/list/comments/CommentsFragment.java

@@ -0,0 +1,149 @@
+package org.schabi.newpipe.fragments.list.comments;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.ListExtractor;
+import org.schabi.newpipe.extractor.NewPipe;
+import org.schabi.newpipe.extractor.comments.CommentsInfo;
+import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
+import org.schabi.newpipe.report.UserAction;
+import org.schabi.newpipe.util.AnimationUtils;
+import org.schabi.newpipe.util.ExtractorHelper;
+
+import io.reactivex.Single;
+import io.reactivex.disposables.CompositeDisposable;
+
+public class CommentsFragment extends BaseListInfoFragment<CommentsInfo> {
+
+    private CompositeDisposable disposables = new CompositeDisposable();
+    /*//////////////////////////////////////////////////////////////////////////
+    // Views
+    //////////////////////////////////////////////////////////////////////////*/
+
+
+
+    private boolean mIsVisibleToUser = false;
+
+    public static CommentsFragment getInstance(int serviceId, String url, String name) {
+        CommentsFragment instance = new CommentsFragment();
+        instance.setInitialData(serviceId, url, name);
+        return instance;
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // LifeCycle
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void setUserVisibleHint(boolean isVisibleToUser) {
+        super.setUserVisibleHint(isVisibleToUser);
+        mIsVisibleToUser = isVisibleToUser;
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_comments, container, false);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (disposables != null) disposables.clear();
+    }
+
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Load and handle
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    protected Single<ListExtractor.InfoItemsPage> loadMoreItemsLogic() {
+        return ExtractorHelper.getMoreCommentItems(serviceId, currentInfo, currentNextPageUrl);
+    }
+
+    @Override
+    protected Single<CommentsInfo> loadResult(boolean forceLoad) {
+        return ExtractorHelper.getCommentsInfo(serviceId, url, forceLoad);
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Contract
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void showLoading() {
+        super.showLoading();
+    }
+
+    @Override
+    public void handleResult(@NonNull CommentsInfo result) {
+        super.handleResult(result);
+
+        AnimationUtils.slideUp(getView(),120, 96, 0.06f);
+
+        if (!result.getErrors().isEmpty()) {
+            showSnackBarError(result.getErrors(), UserAction.REQUESTED_COMMENTS, NewPipe.getNameOfService(result.getServiceId()), result.getUrl(), 0);
+        }
+
+        if (disposables != null) disposables.clear();
+    }
+
+    @Override
+    public void handleNextItems(ListExtractor.InfoItemsPage result) {
+        super.handleNextItems(result);
+
+        if (!result.getErrors().isEmpty()) {
+            showSnackBarError(result.getErrors(),
+                    UserAction.REQUESTED_COMMENTS,
+                    NewPipe.getNameOfService(serviceId),
+                    "Get next page of: " + url,
+                    R.string.general_error);
+        }
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // OnError
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    protected boolean onError(Throwable exception) {
+        if (super.onError(exception)) return true;
+
+        hideLoading();
+        showSnackBarError(exception, UserAction.REQUESTED_COMMENTS, NewPipe.getNameOfService(serviceId), url, R.string.error_unable_to_load_comments);
+        return true;
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Utils
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void setTitle(String title) {
+        return;
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        return;
+    }
+
+    @Override
+    protected boolean isGridLayout() {
+        return false;
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/list/kiosk/KioskFragment.java

@@ -1,7 +1,6 @@
 package org.schabi.newpipe.fragments.list.kiosk;
 
 import android.os.Bundle;
-import android.preference.PreferenceManager;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v7.app.ActionBar;
@@ -155,9 +154,7 @@ public class KioskFragment extends BaseListInfoFragment<KioskInfo> {
         super.handleResult(result);
 
         name = kioskTranslatedName;
-        if(!useAsFrontPage) {
-            setTitle(kioskTranslatedName);
-        }
+        setTitle(kioskTranslatedName);
 
         if (!result.getErrors().isEmpty()) {
             showSnackBarError(result.getErrors(),

app/src/main/java/org/schabi/newpipe/fragments/list/playlist/PlaylistFragment.java

@@ -2,10 +2,10 @@ package org.schabi.newpipe.fragments.list.playlist;
 
 import android.app.Activity;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
 import android.support.v7.app.AppCompatActivity;
 import android.text.TextUtils;
 import android.util.Log;
@@ -29,17 +29,19 @@ import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfo;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
+import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
 import org.schabi.newpipe.info_list.InfoItemDialog;
 import org.schabi.newpipe.local.playlist.RemotePlaylistManager;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.PlaylistPlayQueue;
-import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.util.ExtractorHelper;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.NavigationHelper;
+import org.schabi.newpipe.util.ShareUtils;
+import org.schabi.newpipe.util.StreamDialogEntry;
 import org.schabi.newpipe.util.ThemeHelper;
 
 import java.util.ArrayList;
@@ -134,48 +136,40 @@ public class PlaylistFragment extends BaseListInfoFragment<PlaylistInfo> {
         infoListAdapter.useMiniItemVariants(true);
     }
 
+    private PlayQueue getPlayQueueStartingAt(StreamInfoItem infoItem) {
+        return getPlayQueue(Math.max(infoListAdapter.getItemsList().indexOf(infoItem), 0));
+    }
+
     @Override
-    protected void showStreamDialog(final StreamInfoItem item) {
+    protected void showStreamDialog(StreamInfoItem item) {
         final Context context = getContext();
         final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || getActivity() == null) return;
+        if (context == null || context.getResources() == null || activity == null) return;
 
-        final String[] commands = new String[]{
-                context.getResources().getString(R.string.enqueue_on_background),
-                context.getResources().getString(R.string.enqueue_on_popup),
-                context.getResources().getString(R.string.start_here_on_main),
-                context.getResources().getString(R.string.start_here_on_background),
-                context.getResources().getString(R.string.start_here_on_popup),
-                context.getResources().getString(R.string.share)
-        };
+        if (item.getStreamType() == StreamType.AUDIO_STREAM) {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
+        } else {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.enqueue_on_popup,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.start_here_on_popup,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
 
-        final DialogInterface.OnClickListener actions = (dialogInterface, i) -> {
-            final int index = Math.max(infoListAdapter.getItemsList().indexOf(item), 0);
-            switch (i) {
-                case 0:
-                    NavigationHelper.enqueueOnBackgroundPlayer(context, new SinglePlayQueue(item));
-                    break;
-                case 1:
-                    NavigationHelper.enqueueOnPopupPlayer(activity, new SinglePlayQueue(item));
-                    break;
-                case 2:
-                    NavigationHelper.playOnMainPlayer(context, getPlayQueue(index));
-                    break;
-                case 3:
-                    NavigationHelper.playOnBackgroundPlayer(context, getPlayQueue(index));
-                    break;
-                case 4:
-                    NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(index));
-                    break;
-                case 5:
-                    shareUrl(item.getName(), item.getUrl());
-                    break;
-                default:
-                    break;
-            }
-        };
+            StreamDialogEntry.start_here_on_popup.setCustomAction(
+                    (fragment, infoItem) -> NavigationHelper.playOnPopupPlayer(context, getPlayQueueStartingAt(infoItem), true));
+        }
 
-        new InfoItemDialog(getActivity(), item, commands, actions).show();
+        StreamDialogEntry.start_here_on_background.setCustomAction(
+                (fragment, infoItem) -> NavigationHelper.playOnBackgroundPlayer(context, getPlayQueueStartingAt(infoItem), true));
+
+        new InfoItemDialog(activity, item, StreamDialogEntry.getCommands(context), (dialog, which) ->
+                StreamDialogEntry.clickOn(which, this, item)).show();
     }
 
     @Override
@@ -230,10 +224,10 @@ public class PlaylistFragment extends BaseListInfoFragment<PlaylistInfo> {
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case R.id.menu_item_openInBrowser:
-                openUrlInBrowser(url);
+                ShareUtils.openUrlInBrowser(this.getContext(), url);
                 break;
             case R.id.menu_item_share:
-                shareUrl(name, url);
+                ShareUtils.shareUrl(this.getContext(), name, url);
                 break;
             case R.id.menu_item_bookmark:
                 onBookmarkClicked();
@@ -300,11 +294,21 @@ public class PlaylistFragment extends BaseListInfoFragment<PlaylistInfo> {
                 .subscribe(getPlaylistBookmarkSubscriber());
 
         headerPlayAllButton.setOnClickListener(view ->
-                NavigationHelper.playOnMainPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnMainPlayer(activity, getPlayQueue(), false));
         headerPopupButton.setOnClickListener(view ->
-                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(), false));
         headerBackgroundButton.setOnClickListener(view ->
-                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue(), false));
+
+        headerPopupButton.setOnLongClickListener(view -> {
+            NavigationHelper.enqueueOnPopupPlayer(activity, getPlayQueue(), true);
+            return true;
+        });
+
+        headerBackgroundButton.setOnLongClickListener(view -> {
+            NavigationHelper.enqueueOnBackgroundPlayer(activity, getPlayQueue(), true);
+            return true;
+        });
     }
 
     private PlayQueue getPlayQueue() {

app/src/main/java/org/schabi/newpipe/fragments/list/search/SearchFragment.java

@@ -12,6 +12,7 @@ import android.support.v7.app.ActionBar;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.TooltipCompat;
+import android.support.v7.widget.helper.ItemTouchHelper;
 import android.text.Editable;
 import android.text.TextUtils;
 import android.text.TextWatcher;
@@ -39,15 +40,15 @@ import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.search.SearchExtractor;
 import org.schabi.newpipe.extractor.search.SearchInfo;
+import org.schabi.newpipe.util.FireTvUtils;
 import org.schabi.newpipe.fragments.BackPressable;
 import org.schabi.newpipe.fragments.list.BaseListFragment;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.report.UserAction;
-import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.AnimationUtils;
+import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.ExtractorHelper;
-import org.schabi.newpipe.util.LayoutManagerSmoothScroller;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.ServiceHelper;
 
@@ -72,8 +73,8 @@ import io.reactivex.disposables.Disposable;
 import io.reactivex.schedulers.Schedulers;
 import io.reactivex.subjects.PublishSubject;
 
+import static android.support.v7.widget.helper.ItemTouchHelper.Callback.makeMovementFlags;
 import static java.util.Arrays.asList;
-
 import static org.schabi.newpipe.util.AnimationUtils.animateView;
 
 public class SearchFragment
@@ -104,8 +105,13 @@ public class SearchFragment
     // this three represet the current search query
     @State
     protected String searchString;
+
+    /**
+     * No content filter should add like contentfilter = all
+     * be aware of this when implementing an extractor.
+     */
     @State
-    protected String[] contentFilter;
+    protected String[] contentFilter = new String[0];
     @State
     protected String sortFilter;
     
@@ -292,7 +298,23 @@ public class SearchFragment
         suggestionsPanel = rootView.findViewById(R.id.suggestions_panel);
         suggestionsRecyclerView = rootView.findViewById(R.id.suggestions_list);
         suggestionsRecyclerView.setAdapter(suggestionListAdapter);
-        suggestionsRecyclerView.setLayoutManager(new LayoutManagerSmoothScroller(activity));
+        new ItemTouchHelper(new ItemTouchHelper.Callback() {
+            @Override
+            public int getMovementFlags(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder) {
+                return getSuggestionMovementFlags(recyclerView, viewHolder);
+            }
+
+            @Override
+            public boolean onMove(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder,
+                                  @NonNull RecyclerView.ViewHolder viewHolder1) {
+                return false;
+            }
+
+            @Override
+            public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int i) {
+                onSuggestionItemSwiped(viewHolder, i);
+            }
+        }).attachToRecyclerView(suggestionsRecyclerView);
 
         searchToolbarContainer = activity.findViewById(R.id.toolbar_search_container);
         searchEditText = searchToolbarContainer.findViewById(R.id.toolbar_search_edit_text);
@@ -335,7 +357,7 @@ public class SearchFragment
                 || (searchEditText != null && !TextUtils.isEmpty(searchEditText.getText()))) {
             search(!TextUtils.isEmpty(searchString)
                     ? searchString
-                    : searchEditText.getText().toString(), new String[0], "");
+                    : searchEditText.getText().toString(), this.contentFilter, "");
         } else {
             if (searchEditText != null) {
                 searchEditText.setText("");
@@ -449,6 +471,9 @@ public class SearchFragment
             if (isSuggestionsEnabled && errorPanelRoot.getVisibility() != View.VISIBLE) {
                 showSuggestionsPanel();
             }
+            if(FireTvUtils.isFireTv()){
+                showKeyboardSearch();
+            }
         });
 
         searchEditText.setOnFocusChangeListener((View v, boolean hasFocus) -> {
@@ -499,7 +524,9 @@ public class SearchFragment
                     if (DEBUG) {
                         Log.d(TAG, "onEditorAction() called with: v = [" + v + "], actionId = [" + actionId + "], event = [" + event + "]");
                     }
-                    if (event != null
+                    if(actionId == EditorInfo.IME_ACTION_PREVIOUS){
+                        hideKeyboardSearch();
+                    } else if (event != null
                             && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER
                                 || event.getAction() == EditorInfo.IME_ACTION_SEARCH)) {
                         search(searchEditText.getText().toString(), new String[0], "");
@@ -541,7 +568,7 @@ public class SearchFragment
         if (searchEditText.requestFocus()) {
             InputMethodManager imm = (InputMethodManager) activity.getSystemService(
                     Context.INPUT_METHOD_SERVICE);
-            imm.showSoftInput(searchEditText, InputMethodManager.SHOW_IMPLICIT);
+            imm.showSoftInput(searchEditText, InputMethodManager.SHOW_FORCED);
         }
     }
 
@@ -551,8 +578,7 @@ public class SearchFragment
 
         InputMethodManager imm = (InputMethodManager) activity.getSystemService(
                 Context.INPUT_METHOD_SERVICE);
-        imm.hideSoftInputFromWindow(searchEditText.getWindowToken(),
-                InputMethodManager.HIDE_NOT_ALWAYS);
+        imm.hideSoftInputFromWindow(searchEditText.getWindowToken(), InputMethodManager.RESULT_UNCHANGED_SHOWN);
 
         searchEditText.clearFocus();
     }
@@ -736,6 +762,7 @@ public class SearchFragment
 
     @Override
     protected void loadMoreItems() {
+        if(nextPageUrl == null || nextPageUrl.isEmpty()) return;
         isLoading.set(true);
         showListFooter(true);
         if (searchDisposable != null) searchDisposable.dispose();
@@ -890,4 +917,28 @@ public class SearchFragment
 
         return true;
     }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Suggestion item touch helper
+    //////////////////////////////////////////////////////////////////////////*/
+
+    public int getSuggestionMovementFlags(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder) {
+        final int position = viewHolder.getAdapterPosition();
+        final SuggestionItem item = suggestionListAdapter.getItem(position);
+        return item.fromHistory ? makeMovementFlags(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT) : 0;
+    }
+
+    public void onSuggestionItemSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int i) {
+        final int position = viewHolder.getAdapterPosition();
+        final String query = suggestionListAdapter.getItem(position).query;
+        final Disposable onDelete = historyRecordManager.deleteSearchHistory(query)
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(
+                        howManyDeleted -> suggestionPublisher
+                                .onNext(searchEditText.getText().toString()),
+                        throwable -> showSnackBarError(throwable,
+                                UserAction.DELETE_FROM_HISTORY, "none",
+                                "Deleting item failed", R.string.general_error));
+        disposables.add(onDelete);
+    }
 }

app/src/main/java/org/schabi/newpipe/fragments/list/search/SuggestionListAdapter.java

@@ -75,7 +75,7 @@ public class SuggestionListAdapter extends RecyclerView.Adapter<SuggestionListAd
         });
     }
 
-    private SuggestionItem getItem(int position) {
+    SuggestionItem getItem(int position) {
         return items.get(position);
     }
 

app/src/main/java/org/schabi/newpipe/fragments/list/videos/RelatedVideosFragment.java

@@ -0,0 +1,208 @@
+package org.schabi.newpipe.fragments.list.videos;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CompoundButton;
+import android.widget.Switch;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.ListExtractor;
+import org.schabi.newpipe.extractor.NewPipe;
+import org.schabi.newpipe.extractor.stream.StreamInfo;
+import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
+import org.schabi.newpipe.report.UserAction;
+import org.schabi.newpipe.util.AnimationUtils;
+import org.schabi.newpipe.util.RelatedStreamInfo;
+
+import java.io.Serializable;
+
+import io.reactivex.Single;
+import io.reactivex.disposables.CompositeDisposable;
+
+public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInfo> implements SharedPreferences.OnSharedPreferenceChangeListener{
+
+    private CompositeDisposable disposables = new CompositeDisposable();
+    private RelatedStreamInfo relatedStreamInfo;
+    /*//////////////////////////////////////////////////////////////////////////
+    // Views
+    //////////////////////////////////////////////////////////////////////////*/
+    private View headerRootLayout;
+    private Switch aSwitch;
+
+    private boolean mIsVisibleToUser = false;
+
+    public static RelatedVideosFragment getInstance(StreamInfo info) {
+        RelatedVideosFragment instance = new RelatedVideosFragment();
+        instance.setInitialData(info);
+        return instance;
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // LifeCycle
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void setUserVisibleHint(boolean isVisibleToUser) {
+        super.setUserVisibleHint(isVisibleToUser);
+        mIsVisibleToUser = isVisibleToUser;
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_related_streams, container, false);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (disposables != null) disposables.clear();
+    }
+
+    protected View getListHeader(){
+        if(relatedStreamInfo != null && relatedStreamInfo.getNextStream() != null){
+            headerRootLayout = activity.getLayoutInflater().inflate(R.layout.related_streams_header, itemsList, false);
+            aSwitch = headerRootLayout.findViewById(R.id.autoplay_switch);
+
+            SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getContext());
+            Boolean autoplay = pref.getBoolean(getString(R.string.auto_queue_key), false);
+            aSwitch.setChecked(autoplay);
+            aSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+                @Override
+                public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
+                    SharedPreferences.Editor prefEdit = PreferenceManager.getDefaultSharedPreferences(getContext()).edit();
+                    prefEdit.putBoolean(getString(R.string.auto_queue_key), b);
+                    prefEdit.apply();
+                }
+            });
+            return headerRootLayout;
+        }else{
+            return null;
+        }
+    }
+
+    @Override
+    protected Single<ListExtractor.InfoItemsPage> loadMoreItemsLogic() {
+        return Single.fromCallable(() -> ListExtractor.InfoItemsPage.emptyPage());
+    }
+
+    @Override
+    protected Single<RelatedStreamInfo> loadResult(boolean forceLoad) {
+        return Single.fromCallable(() -> relatedStreamInfo);
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Contract
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void showLoading() {
+        super.showLoading();
+        if(null != headerRootLayout) headerRootLayout.setVisibility(View.INVISIBLE);
+    }
+
+    @Override
+    public void handleResult(@NonNull RelatedStreamInfo result) {
+
+        super.handleResult(result);
+
+        if(null != headerRootLayout) headerRootLayout.setVisibility(View.VISIBLE);
+        AnimationUtils.slideUp(getView(),120, 96, 0.06f);
+
+        if (!result.getErrors().isEmpty()) {
+            showSnackBarError(result.getErrors(), UserAction.REQUESTED_STREAM, NewPipe.getNameOfService(result.getServiceId()), result.getUrl(), 0);
+        }
+
+        if (disposables != null) disposables.clear();
+    }
+
+    @Override
+    public void handleNextItems(ListExtractor.InfoItemsPage result) {
+        super.handleNextItems(result);
+
+        if (!result.getErrors().isEmpty()) {
+            showSnackBarError(result.getErrors(),
+                    UserAction.REQUESTED_STREAM,
+                    NewPipe.getNameOfService(serviceId),
+                    "Get next page of: " + url,
+                    R.string.general_error);
+        }
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // OnError
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    protected boolean onError(Throwable exception) {
+        if (super.onError(exception)) return true;
+
+        hideLoading();
+        showSnackBarError(exception, UserAction.REQUESTED_STREAM, NewPipe.getNameOfService(serviceId), url, R.string.general_error);
+        return true;
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Utils
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void setTitle(String title) {
+        return;
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        return;
+    }
+
+    private void setInitialData(StreamInfo info) {
+        super.setInitialData(info.getServiceId(), info.getUrl(), info.getName());
+        if(this.relatedStreamInfo == null) this.relatedStreamInfo = RelatedStreamInfo.getInfo(info);
+    }
+
+
+    private static final String INFO_KEY = "related_info_key";
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putSerializable(INFO_KEY, relatedStreamInfo);
+    }
+
+    @Override
+    protected void onRestoreInstanceState(@NonNull Bundle savedState) {
+        super.onRestoreInstanceState(savedState);
+        if (savedState != null) {
+            Serializable serializable = savedState.getSerializable(INFO_KEY);
+            if(serializable instanceof RelatedStreamInfo){
+                this.relatedStreamInfo = (RelatedStreamInfo) serializable;
+            }
+        }
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
+        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getContext());
+        Boolean autoplay = pref.getBoolean(getString(R.string.auto_queue_key), false);
+        if(null != aSwitch) aSwitch.setChecked(autoplay);
+    }
+
+    @Override
+    protected boolean isGridLayout() {
+        return false;
+    }
+}

app/src/main/java/org/schabi/newpipe/info_list/InfoItemBuilder.java

@@ -2,7 +2,6 @@ package org.schabi.newpipe.info_list;
 
 import android.content.Context;
 import android.support.annotation.NonNull;
-import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -10,15 +9,19 @@ import com.nostra13.universalimageloader.core.ImageLoader;
 
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.info_list.holder.ChannelInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.ChannelMiniInfoItemHolder;
+import org.schabi.newpipe.info_list.holder.CommentsInfoItemHolder;
+import org.schabi.newpipe.info_list.holder.CommentsMiniInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.InfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistMiniInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.StreamInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.StreamMiniInfoItemHolder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.OnClickGesture;
 
 /*
@@ -50,18 +53,20 @@ public class InfoItemBuilder {
     private OnClickGesture<StreamInfoItem> onStreamSelectedListener;
     private OnClickGesture<ChannelInfoItem> onChannelSelectedListener;
     private OnClickGesture<PlaylistInfoItem> onPlaylistSelectedListener;
+    private OnClickGesture<CommentsInfoItem> onCommentsSelectedListener;
 
     public InfoItemBuilder(Context context) {
         this.context = context;
     }
 
-    public View buildView(@NonNull ViewGroup parent, @NonNull final InfoItem infoItem) {
-        return buildView(parent, infoItem, false);
+    public View buildView(@NonNull ViewGroup parent, @NonNull final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
+        return buildView(parent, infoItem, historyRecordManager, false);
     }
 
-    public View buildView(@NonNull ViewGroup parent, @NonNull final InfoItem infoItem, boolean useMiniVariant) {
+    public View buildView(@NonNull ViewGroup parent, @NonNull final InfoItem infoItem,
+                          final HistoryRecordManager historyRecordManager, boolean useMiniVariant) {
         InfoItemHolder holder = holderFromInfoType(parent, infoItem.getInfoType(), useMiniVariant);
-        holder.updateFromItem(infoItem);
+        holder.updateFromItem(infoItem, historyRecordManager);
         return holder.itemView;
     }
 
@@ -73,8 +78,9 @@ public class InfoItemBuilder {
                 return useMiniVariant ? new ChannelMiniInfoItemHolder(this, parent) : new ChannelInfoItemHolder(this, parent);
             case PLAYLIST:
                 return useMiniVariant ? new PlaylistMiniInfoItemHolder(this, parent) : new PlaylistInfoItemHolder(this, parent);
+            case COMMENT:
+                return useMiniVariant ? new CommentsMiniInfoItemHolder(this, parent) : new CommentsInfoItemHolder(this, parent);
             default:
-                Log.e(TAG, "Trollolo");
                 throw new RuntimeException("InfoType not expected = " + infoType.name());
         }
     }
@@ -111,4 +117,12 @@ public class InfoItemBuilder {
         this.onPlaylistSelectedListener = listener;
     }
 
+    public OnClickGesture<CommentsInfoItem> getOnCommentsSelectedListener() {
+        return onCommentsSelectedListener;
+    }
+
+    public void setOnCommentsSelectedListener(OnClickGesture<CommentsInfoItem> onCommentsSelectedListener) {
+        this.onCommentsSelectedListener = onCommentsSelectedListener;
+    }
+
 }

app/src/main/java/org/schabi/newpipe/info_list/InfoListAdapter.java

@@ -1,19 +1,25 @@
 package org.schabi.newpipe.info_list;
 
-import android.app.Activity;
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.support.v7.widget.GridLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 
+import org.schabi.newpipe.database.stream.model.StreamStateEntity;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
+import org.schabi.newpipe.info_list.holder.ChannelGridInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.ChannelInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.ChannelMiniInfoItemHolder;
-import org.schabi.newpipe.info_list.holder.ChannelGridInfoItemHolder;
+import org.schabi.newpipe.info_list.holder.CommentsInfoItemHolder;
+import org.schabi.newpipe.info_list.holder.CommentsMiniInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.InfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistGridInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistInfoItemHolder;
@@ -21,6 +27,7 @@ import org.schabi.newpipe.info_list.holder.PlaylistMiniInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.StreamGridInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.StreamInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.StreamMiniInfoItemHolder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.FallbackViewHolder;
 import org.schabi.newpipe.util.OnClickGesture;
 
@@ -63,9 +70,13 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
     private static final int MINI_PLAYLIST_HOLDER_TYPE = 0x300;
     private static final int PLAYLIST_HOLDER_TYPE = 0x301;
     private static final int GRID_PLAYLIST_HOLDER_TYPE = 0x302;
+    private static final int MINI_COMMENT_HOLDER_TYPE = 0x400;
+    private static final int COMMENT_HOLDER_TYPE = 0x401;
 
     private final InfoItemBuilder infoItemBuilder;
     private final ArrayList<InfoItem> infoItemList;
+    private final HistoryRecordManager recordManager;
+
     private boolean useMiniVariant = false;
     private boolean useGridVariant = false;
     private boolean showFooter = false;
@@ -81,8 +92,9 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
         }
     }
 
-    public InfoListAdapter(Activity a) {
-        infoItemBuilder = new InfoItemBuilder(a);
+    public InfoListAdapter(Context context) {
+        this.recordManager = new HistoryRecordManager(context);
+        infoItemBuilder = new InfoItemBuilder(context);
         infoItemList = new ArrayList<>();
     }
 
@@ -98,6 +110,10 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
         infoItemBuilder.setOnPlaylistSelectedListener(listener);
     }
 
+    public void setOnCommentsSelectedListener(OnClickGesture<CommentsInfoItem> listener) {
+        infoItemBuilder.setOnCommentsSelectedListener(listener);
+    }
+
     public void useMiniItemVariants(boolean useMiniVariant) {
         this.useMiniVariant = useMiniVariant;
     }
@@ -106,50 +122,53 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
         this.useGridVariant = useGridVariant;
     }
 
-    public void addInfoItemList(List<InfoItem> data) {
-        if (data != null) {
-            if (DEBUG) {
-                Log.d(TAG, "addInfoItemList() before > infoItemList.size() = " + infoItemList.size() + ", data.size() = " + data.size());
-            }
+    public void addInfoItemList(@Nullable final List<InfoItem> data) {
+        if (data == null) {
+            return;
+        }
+        if (DEBUG) Log.d(TAG, "addInfoItemList() before > infoItemList.size() = " +
+                infoItemList.size() + ", data.size() = " + data.size());
 
-            int offsetStart = sizeConsideringHeaderOffset();
-            infoItemList.addAll(data);
+        int offsetStart = sizeConsideringHeaderOffset();
+        infoItemList.addAll(data);
 
-            if (DEBUG) {
-                Log.d(TAG, "addInfoItemList() after > offsetStart = " + offsetStart + ", infoItemList.size() = " + infoItemList.size() + ", header = " + header + ", footer = " + footer + ", showFooter = " + showFooter);
-            }
+        if (DEBUG) Log.d(TAG, "addInfoItemList() after > offsetStart = " + offsetStart +
+                ", infoItemList.size() = " + infoItemList.size() +
+                ", header = " + header + ", footer = " + footer +
+                ", showFooter = " + showFooter);
+        notifyItemRangeInserted(offsetStart, data.size());
 
-            notifyItemRangeInserted(offsetStart, data.size());
+        if (footer != null && showFooter) {
+            int footerNow = sizeConsideringHeaderOffset();
+            notifyItemMoved(offsetStart, footerNow);
 
-            if (footer != null && showFooter) {
-                int footerNow = sizeConsideringHeaderOffset();
-                notifyItemMoved(offsetStart, footerNow);
-
-                if (DEBUG) Log.d(TAG, "addInfoItemList() footer from " + offsetStart + " to " + footerNow);
-            }
+            if (DEBUG) Log.d(TAG, "addInfoItemList() footer from " + offsetStart +
+                    " to " + footerNow);
         }
     }
 
-    public void addInfoItem(InfoItem data) {
-        if (data != null) {
-            if (DEBUG) {
-                Log.d(TAG, "addInfoItem() before > infoItemList.size() = " + infoItemList.size() + ", thread = " + Thread.currentThread());
-            }
+    public void addInfoItem(@Nullable InfoItem data) {
+        if (data == null) {
+            return;
+        }
+        if (DEBUG) Log.d(TAG, "addInfoItem() before > infoItemList.size() = " +
+                infoItemList.size() + ", thread = " + Thread.currentThread());
 
-            int positionInserted = sizeConsideringHeaderOffset();
-            infoItemList.add(data);
+        int positionInserted = sizeConsideringHeaderOffset();
+        infoItemList.add(data);
 
-            if (DEBUG) {
-                Log.d(TAG, "addInfoItem() after > position = " + positionInserted + ", infoItemList.size() = " + infoItemList.size() + ", header = " + header + ", footer = " + footer + ", showFooter = " + showFooter);
-            }
-            notifyItemInserted(positionInserted);
+        if (DEBUG) Log.d(TAG, "addInfoItem() after > position = " + positionInserted +
+                ", infoItemList.size() = " + infoItemList.size() +
+                ", header = " + header + ", footer = " + footer +
+                ", showFooter = " + showFooter);
+        notifyItemInserted(positionInserted);
 
-            if (footer != null && showFooter) {
-                int footerNow = sizeConsideringHeaderOffset();
-                notifyItemMoved(positionInserted, footerNow);
+        if (footer != null && showFooter) {
+            int footerNow = sizeConsideringHeaderOffset();
+            notifyItemMoved(positionInserted, footerNow);
 
-                if (DEBUG) Log.d(TAG, "addInfoItem() footer from " + positionInserted + " to " + footerNow);
-            }
+            if (DEBUG) Log.d(TAG, "addInfoItem() footer from " + positionInserted +
+                    " to " + footerNow);
         }
     }
 
@@ -223,15 +242,18 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
                 return useGridVariant ? GRID_CHANNEL_HOLDER_TYPE : useMiniVariant ? MINI_CHANNEL_HOLDER_TYPE : CHANNEL_HOLDER_TYPE;
             case PLAYLIST:
                 return useGridVariant ? GRID_PLAYLIST_HOLDER_TYPE : useMiniVariant ? MINI_PLAYLIST_HOLDER_TYPE : PLAYLIST_HOLDER_TYPE;
+            case COMMENT:
+                return useMiniVariant ? MINI_COMMENT_HOLDER_TYPE : COMMENT_HOLDER_TYPE;
             default:
-                Log.e(TAG, "Trollolo");
                 return -1;
         }
     }
 
+    @NonNull
     @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int type) {
-        if (DEBUG) Log.d(TAG, "onCreateViewHolder() called with: parent = [" + parent + "], type = [" + type + "]");
+    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int type) {
+        if (DEBUG)
+            Log.d(TAG, "onCreateViewHolder() called with: parent = [" + parent + "], type = [" + type + "]");
         switch (type) {
             case HEADER_TYPE:
                 return new HFHolder(header);
@@ -255,20 +277,23 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
                 return new PlaylistInfoItemHolder(infoItemBuilder, parent);
             case GRID_PLAYLIST_HOLDER_TYPE:
                 return new PlaylistGridInfoItemHolder(infoItemBuilder, parent);
+            case MINI_COMMENT_HOLDER_TYPE:
+                return new CommentsMiniInfoItemHolder(infoItemBuilder, parent);
+            case COMMENT_HOLDER_TYPE:
+                return new CommentsInfoItemHolder(infoItemBuilder, parent);
             default:
-                Log.e(TAG, "Trollolo");
                 return new FallbackViewHolder(new View(parent.getContext()));
         }
     }
 
     @Override
-    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
         if (DEBUG) Log.d(TAG, "onBindViewHolder() called with: holder = [" + holder.getClass().getSimpleName() + "], position = [" + position + "]");
         if (holder instanceof InfoItemHolder) {
             // If header isn't null, offset the items by -1
             if (header != null) position--;
 
-            ((InfoItemHolder) holder).updateFromItem(infoItemList.get(position));
+            ((InfoItemHolder) holder).updateFromItem(infoItemList.get(position), recordManager);
         } else if (holder instanceof HFHolder && position == 0 && header != null) {
             ((HFHolder) holder).view = header;
         } else if (holder instanceof HFHolder && position == sizeConsideringHeaderOffset() && footer != null && showFooter) {
@@ -276,6 +301,21 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
         }
     }
 
+    @Override
+    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position, @NonNull List<Object> payloads) {
+        if (!payloads.isEmpty() && holder instanceof InfoItemHolder) {
+            for (Object payload : payloads) {
+                if (payload instanceof StreamStateEntity) {
+                    ((InfoItemHolder) holder).updateState(infoItemList.get(header == null ? position : position - 1), recordManager);
+                } else if (payload instanceof Boolean) {
+                    ((InfoItemHolder) holder).updateState(infoItemList.get(header == null ? position : position - 1), recordManager);
+                }
+            }
+        } else {
+            onBindViewHolder(holder, position);
+        }
+    }
+
     public GridLayoutManager.SpanSizeLookup getSpanSizeLookup(final int spanCount) {
         return new GridLayoutManager.SpanSizeLookup() {
             @Override

app/src/main/java/org/schabi/newpipe/info_list/holder/ChannelInfoItemHolder.java

@@ -7,6 +7,7 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.Localization;
 
 /*
@@ -38,8 +39,8 @@ public class ChannelInfoItemHolder extends ChannelMiniInfoItemHolder {
     }
 
     @Override
-    public void updateFromItem(final InfoItem infoItem) {
-        super.updateFromItem(infoItem);
+    public void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
+        super.updateFromItem(infoItem, historyRecordManager);
 
         if (!(infoItem instanceof ChannelInfoItem)) return;
         final ChannelInfoItem item = (ChannelInfoItem) infoItem;

app/src/main/java/org/schabi/newpipe/info_list/holder/ChannelMiniInfoItemHolder.java

@@ -7,6 +7,7 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.Localization;
 
@@ -30,7 +31,7 @@ public class ChannelMiniInfoItemHolder extends InfoItemHolder {
     }
 
     @Override
-    public void updateFromItem(final InfoItem infoItem) {
+    public void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
         if (!(infoItem instanceof ChannelInfoItem)) return;
         final ChannelInfoItem item = (ChannelInfoItem) infoItem;
 

app/src/main/java/org/schabi/newpipe/info_list/holder/CommentsInfoItemHolder.java

@@ -0,0 +1,52 @@
+package org.schabi.newpipe.info_list.holder;
+
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.InfoItem;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
+import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+
+/*
+ * Created by Christian Schabesberger on 12.02.17.
+ *
+ * Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
+ * ChannelInfoItemHolder .java is part of NewPipe.
+ *
+ * NewPipe is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * NewPipe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+public class CommentsInfoItemHolder extends CommentsMiniInfoItemHolder {
+
+    public final TextView itemTitleView;
+
+    public CommentsInfoItemHolder(InfoItemBuilder infoItemBuilder, ViewGroup parent) {
+        super(infoItemBuilder, R.layout.list_comments_item, parent);
+
+        itemTitleView = itemView.findViewById(R.id.itemTitleView);
+    }
+
+    @Override
+    public void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
+        super.updateFromItem(infoItem, historyRecordManager);
+
+        if (!(infoItem instanceof CommentsInfoItem)) return;
+        final CommentsInfoItem item = (CommentsInfoItem) infoItem;
+
+        itemTitleView.setText(item.getAuthorName());
+    }
+
+}

app/src/main/java/org/schabi/newpipe/info_list/holder/CommentsMiniInfoItemHolder.java

@@ -0,0 +1,147 @@
+package org.schabi.newpipe.info_list.holder;
+
+import android.support.v7.app.AppCompatActivity;
+import android.text.util.Linkify;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import org.jsoup.helper.StringUtil;
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.InfoItem;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
+import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.report.ErrorActivity;
+import org.schabi.newpipe.util.CommentTextOnTouchListener;
+import org.schabi.newpipe.util.ImageDisplayConstants;
+import org.schabi.newpipe.util.NavigationHelper;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import de.hdodenhof.circleimageview.CircleImageView;
+
+public class CommentsMiniInfoItemHolder extends InfoItemHolder {
+    public final CircleImageView itemThumbnailView;
+    private final TextView itemContentView;
+    private final TextView itemLikesCountView;
+    private final TextView itemDislikesCountView;
+    private final TextView itemPublishedTime;
+
+    private static final int commentDefaultLines = 2;
+    private static final int commentExpandedLines = 1000;
+
+    private String commentText;
+    private String streamUrl;
+
+    private static final Pattern pattern = Pattern.compile("(\\d+:)?(\\d+)?:(\\d+)");
+
+    private final Linkify.TransformFilter timestampLink = new Linkify.TransformFilter() {
+        @Override
+        public String transformUrl(Matcher match, String url) {
+            int timestamp = 0;
+            String hours = match.group(1);
+            String minutes = match.group(2);
+            String seconds = match.group(3);
+            if(hours != null) timestamp += (Integer.parseInt(hours.replace(":", ""))*3600);
+            if(minutes != null) timestamp += (Integer.parseInt(minutes.replace(":", ""))*60);
+            if(seconds != null) timestamp += (Integer.parseInt(seconds));
+            return streamUrl + url.replace(match.group(0), "#timestamp=" + timestamp);
+        }
+    };
+
+    CommentsMiniInfoItemHolder(InfoItemBuilder infoItemBuilder, int layoutId, ViewGroup parent) {
+        super(infoItemBuilder, layoutId, parent);
+
+        itemThumbnailView = itemView.findViewById(R.id.itemThumbnailView);
+        itemLikesCountView = itemView.findViewById(R.id.detail_thumbs_up_count_view);
+        itemDislikesCountView = itemView.findViewById(R.id.detail_thumbs_down_count_view);
+        itemPublishedTime = itemView.findViewById(R.id.itemPublishedTime);
+        itemContentView = itemView.findViewById(R.id.itemCommentContentView);
+    }
+
+    public CommentsMiniInfoItemHolder(InfoItemBuilder infoItemBuilder, ViewGroup parent) {
+        this(infoItemBuilder, R.layout.list_comments_mini_item, parent);
+    }
+
+    @Override
+    public void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
+        if (!(infoItem instanceof CommentsInfoItem)) return;
+        final CommentsInfoItem item = (CommentsInfoItem) infoItem;
+
+        itemBuilder.getImageLoader()
+                .displayImage(item.getAuthorThumbnail(),
+                        itemThumbnailView,
+                        ImageDisplayConstants.DISPLAY_THUMBNAIL_OPTIONS);
+
+        itemThumbnailView.setOnClickListener(view -> {
+            if(StringUtil.isBlank(item.getAuthorEndpoint())) return;
+            try {
+                final AppCompatActivity activity = (AppCompatActivity) itemBuilder.getContext();
+                NavigationHelper.openChannelFragment(
+                        activity.getSupportFragmentManager(),
+                        item.getServiceId(),
+                        item.getAuthorEndpoint(),
+                        item.getAuthorName());
+            } catch (Exception e) {
+                ErrorActivity.reportUiError((AppCompatActivity) itemBuilder.getContext(), e);
+            }
+        });
+
+        streamUrl = item.getUrl();
+
+        itemContentView.setLines(commentDefaultLines);
+        commentText = item.getCommentText();
+        itemContentView.setText(commentText);
+        itemContentView.setOnTouchListener(CommentTextOnTouchListener.INSTANCE);
+
+        if (itemContentView.getLineCount() == 0) {
+            itemContentView.post(this::ellipsize);
+        } else {
+            ellipsize();
+        }
+
+        if (null != item.getLikeCount()) {
+            itemLikesCountView.setText(String.valueOf(item.getLikeCount()));
+        }
+        itemPublishedTime.setText(item.getPublishedTime());
+
+        itemView.setOnClickListener(view -> {
+            toggleEllipsize();
+            if (itemBuilder.getOnCommentsSelectedListener() != null) {
+                itemBuilder.getOnCommentsSelectedListener().selected(item);
+            }
+        });
+    }
+
+    private void ellipsize() {
+        if (itemContentView.getLineCount() > commentDefaultLines){
+            int endOfLastLine = itemContentView.getLayout().getLineEnd(commentDefaultLines - 1);
+            int end = itemContentView.getText().toString().lastIndexOf(' ', endOfLastLine -2);
+            if(end == -1) end = Math.max(endOfLastLine -2, 0);
+            String newVal = itemContentView.getText().subSequence(0, end) + " …";
+            itemContentView.setText(newVal);
+        }
+        linkify();
+    }
+
+    private void toggleEllipsize() {
+        if (itemContentView.getText().toString().equals(commentText)) {
+            if (itemContentView.getLineCount() > commentDefaultLines) ellipsize();
+        } else {
+            expand();
+        }
+    }
+
+    private void expand() {
+        itemContentView.setMaxLines(commentExpandedLines);
+        itemContentView.setText(commentText);
+        linkify();
+    }
+
+    private void linkify(){
+        Linkify.addLinks(itemContentView, Linkify.WEB_URLS);
+        Linkify.addLinks(itemContentView, pattern, null, null, timestampLink);
+        itemContentView.setMovementMethod(null);
+    }
+}

app/src/main/java/org/schabi/newpipe/info_list/holder/InfoItemHolder.java

@@ -6,6 +6,7 @@ import android.view.ViewGroup;
 
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 
 /*
  * Created by Christian Schabesberger on 12.02.17.
@@ -35,5 +36,8 @@ public abstract class InfoItemHolder extends RecyclerView.ViewHolder {
         this.itemBuilder = infoItemBuilder;
     }
 
-    public abstract void updateFromItem(final InfoItem infoItem);
+    public abstract void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager);
+
+    public void updateState(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
+    }
 }

app/src/main/java/org/schabi/newpipe/info_list/holder/PlaylistMiniInfoItemHolder.java

@@ -8,6 +8,7 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 
 public class PlaylistMiniInfoItemHolder extends InfoItemHolder {
@@ -30,7 +31,7 @@ public class PlaylistMiniInfoItemHolder extends InfoItemHolder {
     }
 
     @Override
-    public void updateFromItem(final InfoItem infoItem) {
+    public void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
         if (!(infoItem instanceof PlaylistInfoItem)) return;
         final PlaylistInfoItem item = (PlaylistInfoItem) infoItem;
 

app/src/main/java/org/schabi/newpipe/info_list/holder/StreamInfoItemHolder.java

@@ -8,6 +8,7 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.Localization;
 
 /*
@@ -40,8 +41,8 @@ public class StreamInfoItemHolder extends StreamMiniInfoItemHolder {
     }
 
     @Override
-    public void updateFromItem(final InfoItem infoItem) {
-        super.updateFromItem(infoItem);
+    public void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
+        super.updateFromItem(infoItem, historyRecordManager);
 
         if (!(infoItem instanceof StreamInfoItem)) return;
         final StreamInfoItem item = (StreamInfoItem) infoItem;

app/src/main/java/org/schabi/newpipe/info_list/holder/StreamMiniInfoItemHolder.java

@@ -7,12 +7,18 @@ import android.widget.ImageView;
 import android.widget.TextView;
 
 import org.schabi.newpipe.R;
+import org.schabi.newpipe.database.stream.model.StreamStateEntity;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.util.AnimationUtils;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.views.AnimatedProgressBar;
+
+import java.util.concurrent.TimeUnit;
 
 public class StreamMiniInfoItemHolder extends InfoItemHolder {
 
@@ -20,6 +26,7 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
     public final TextView itemVideoTitleView;
     public final TextView itemUploaderView;
     public final TextView itemDurationView;
+    public final AnimatedProgressBar itemProgressView;
 
     StreamMiniInfoItemHolder(InfoItemBuilder infoItemBuilder, int layoutId, ViewGroup parent) {
         super(infoItemBuilder, layoutId, parent);
@@ -28,6 +35,7 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
         itemVideoTitleView = itemView.findViewById(R.id.itemVideoTitleView);
         itemUploaderView = itemView.findViewById(R.id.itemUploaderView);
         itemDurationView = itemView.findViewById(R.id.itemDurationView);
+        itemProgressView = itemView.findViewById(R.id.itemProgressView);
     }
 
     public StreamMiniInfoItemHolder(InfoItemBuilder infoItemBuilder, ViewGroup parent) {
@@ -35,7 +43,7 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
     }
 
     @Override
-    public void updateFromItem(final InfoItem infoItem) {
+    public void updateFromItem(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
         if (!(infoItem instanceof StreamInfoItem)) return;
         final StreamInfoItem item = (StreamInfoItem) infoItem;
 
@@ -47,13 +55,24 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
             itemDurationView.setBackgroundColor(ContextCompat.getColor(itemBuilder.getContext(),
                     R.color.duration_background_color));
             itemDurationView.setVisibility(View.VISIBLE);
+
+            StreamStateEntity state2 = historyRecordManager.loadStreamState(infoItem).blockingGet()[0];
+            if (state2 != null) {
+                itemProgressView.setVisibility(View.VISIBLE);
+                itemProgressView.setMax((int) item.getDuration());
+                itemProgressView.setProgress((int) TimeUnit.MILLISECONDS.toSeconds(state2.getProgressTime()));
+            } else {
+                itemProgressView.setVisibility(View.GONE);
+            }
         } else if (item.getStreamType() == StreamType.LIVE_STREAM) {
             itemDurationView.setText(R.string.duration_live);
             itemDurationView.setBackgroundColor(ContextCompat.getColor(itemBuilder.getContext(),
                     R.color.live_duration_background_color));
             itemDurationView.setVisibility(View.VISIBLE);
+            itemProgressView.setVisibility(View.GONE);
         } else {
             itemDurationView.setVisibility(View.GONE);
+            itemProgressView.setVisibility(View.GONE);
         }
 
         // Default thumbnail is shown on error, while loading and if the url is empty
@@ -83,6 +102,24 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
         }
     }
 
+    @Override
+    public void updateState(final InfoItem infoItem, final HistoryRecordManager historyRecordManager) {
+        final StreamInfoItem item = (StreamInfoItem) infoItem;
+
+        StreamStateEntity state = historyRecordManager.loadStreamState(infoItem).blockingGet()[0];
+        if (state != null && item.getDuration() > 0 && item.getStreamType() != StreamType.LIVE_STREAM) {
+            itemProgressView.setMax((int) item.getDuration());
+            if (itemProgressView.getVisibility() == View.VISIBLE) {
+                itemProgressView.setProgressAnimated((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+            } else {
+                itemProgressView.setProgress((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+                AnimationUtils.animateView(itemProgressView, true, 500);
+            }
+        } else if (itemProgressView.getVisibility() == View.VISIBLE) {
+            AnimationUtils.animateView(itemProgressView, false, 500);
+        }
+    }
+
     private void enableLongClick(final StreamInfoItem item) {
         itemView.setLongClickable(true);
         itemView.setOnLongClickListener(view -> {
@@ -97,4 +134,4 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
         itemView.setLongClickable(false);
         itemView.setOnLongClickListener(null);
     }
-}
+}

app/src/main/java/org/schabi/newpipe/local/LocalItemListAdapter.java

@@ -1,6 +1,8 @@
 package org.schabi.newpipe.local;
 
-import android.app.Activity;
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.support.v7.widget.GridLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
@@ -8,6 +10,8 @@ import android.view.View;
 import android.view.ViewGroup;
 
 import org.schabi.newpipe.database.LocalItem;
+import org.schabi.newpipe.database.stream.model.StreamStateEntity;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.local.holder.LocalItemHolder;
 import org.schabi.newpipe.local.holder.LocalPlaylistGridItemHolder;
 import org.schabi.newpipe.local.holder.LocalPlaylistItemHolder;
@@ -64,6 +68,7 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
 
     private final LocalItemBuilder localItemBuilder;
     private final ArrayList<LocalItem> localItems;
+    private final HistoryRecordManager recordManager;
     private final DateFormat dateFormat;
 
     private boolean showFooter = false;
@@ -71,11 +76,12 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
     private View header = null;
     private View footer = null;
 
-    public LocalItemListAdapter(Activity activity) {
-        localItemBuilder = new LocalItemBuilder(activity);
+    public LocalItemListAdapter(Context context) {
+        recordManager = new HistoryRecordManager(context);
+        localItemBuilder = new LocalItemBuilder(context);
         localItems = new ArrayList<>();
         dateFormat = DateFormat.getDateInstance(DateFormat.SHORT,
-                Localization.getPreferredLocale(activity));
+                Localization.getPreferredLocale(context));
     }
 
     public void setSelectedListener(OnClickGesture<LocalItem> listener) {
@@ -86,38 +92,33 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
         localItemBuilder.setOnItemSelectedListener(null);
     }
 
-    public void addItems(List<? extends LocalItem> data) {
-        if (data != null) {
-            if (DEBUG) {
-                Log.d(TAG, "addItems() before > localItems.size() = " +
-                        localItems.size() + ", data.size() = " + data.size());
-            }
+    public void addItems(@Nullable List<? extends LocalItem> data) {
+        if (data == null) {
+            return;
+        }
+        if (DEBUG) Log.d(TAG, "addItems() before > localItems.size() = " +
+                localItems.size() + ", data.size() = " + data.size());
 
-            int offsetStart = sizeConsideringHeader();
-            localItems.addAll(data);
+        int offsetStart = sizeConsideringHeader();
+        localItems.addAll(data);
 
-            if (DEBUG) {
-                Log.d(TAG, "addItems() after > offsetStart = " + offsetStart +
-                        ", localItems.size() = " + localItems.size() +
-                        ", header = " + header + ", footer = " + footer +
-                        ", showFooter = " + showFooter);
-            }
+        if (DEBUG) Log.d(TAG, "addItems() after > offsetStart = " + offsetStart +
+                ", localItems.size() = " + localItems.size() +
+                ", header = " + header + ", footer = " + footer +
+                ", showFooter = " + showFooter);
+        notifyItemRangeInserted(offsetStart, data.size());
 
-            notifyItemRangeInserted(offsetStart, data.size());
+        if (footer != null && showFooter) {
+            int footerNow = sizeConsideringHeader();
+            notifyItemMoved(offsetStart, footerNow);
 
-            if (footer != null && showFooter) {
-                int footerNow = sizeConsideringHeader();
-                notifyItemMoved(offsetStart, footerNow);
-
-                if (DEBUG) Log.d(TAG, "addItems() footer from " + offsetStart +
-                        " to " + footerNow);
-            }
+            if (DEBUG) Log.d(TAG, "addItems() footer from " + offsetStart +
+                    " to " + footerNow);
         }
     }
 
     public void removeItem(final LocalItem data) {
         final int index = localItems.indexOf(data);
-
         localItems.remove(index);
         notifyItemRemoved(index + (header != null ? 1 : 0));
     }
@@ -219,8 +220,9 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
         }
     }
 
+    @NonNull
     @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int type) {
+    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int type) {
         if (DEBUG) Log.d(TAG, "onCreateViewHolder() called with: parent = [" +
                 parent + "], type = [" + type + "]");
         switch (type) {
@@ -251,7 +253,7 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
     }
 
     @Override
-    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
         if (DEBUG) Log.d(TAG, "onBindViewHolder() called with: holder = [" +
                 holder.getClass().getSimpleName() + "], position = [" + position + "]");
 
@@ -259,7 +261,7 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
             // If header isn't null, offset the items by -1
             if (header != null) position--;
 
-            ((LocalItemHolder) holder).updateFromItem(localItems.get(position), dateFormat);
+            ((LocalItemHolder) holder).updateFromItem(localItems.get(position), recordManager, dateFormat);
         } else if (holder instanceof HeaderFooterHolder && position == 0 && header != null) {
             ((HeaderFooterHolder) holder).view = header;
         } else if (holder instanceof HeaderFooterHolder && position == sizeConsideringHeader()
@@ -268,6 +270,21 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
         }
     }
 
+    @Override
+    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position, @NonNull List<Object> payloads) {
+        if (!payloads.isEmpty() && holder instanceof LocalItemHolder) {
+            for (Object payload : payloads) {
+                if (payload instanceof StreamStateEntity) {
+                    ((LocalItemHolder) holder).updateState(localItems.get(header == null ? position : position - 1), recordManager);
+                } else if (payload instanceof Boolean) {
+                    ((LocalItemHolder) holder).updateState(localItems.get(header == null ? position : position - 1), recordManager);
+                }
+            }
+        } else {
+            onBindViewHolder(holder, position);
+        }
+    }
+
     public GridLayoutManager.SpanSizeLookup getSpanSizeLookup(final int spanCount) {
         return new GridLayoutManager.SpanSizeLookup() {
             @Override

app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistAppendDialog.java

@@ -1,6 +1,5 @@
 package org.schabi.newpipe.local.dialog;
 
-import android.annotation.SuppressLint;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
@@ -28,7 +27,7 @@ import java.util.Collections;
 import java.util.List;
 
 import io.reactivex.android.schedulers.AndroidSchedulers;
-import io.reactivex.disposables.Disposable;
+import io.reactivex.disposables.CompositeDisposable;
 
 public final class PlaylistAppendDialog extends PlaylistDialog {
     private static final String TAG = PlaylistAppendDialog.class.getCanonicalName();
@@ -36,7 +35,7 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
     private RecyclerView playlistRecyclerView;
     private LocalItemListAdapter playlistAdapter;
 
-    private Disposable playlistReactor;
+    private CompositeDisposable playlistDisposables = new CompositeDisposable();
 
     public static PlaylistAppendDialog fromStreamInfo(final StreamInfo info) {
         PlaylistAppendDialog dialog = new PlaylistAppendDialog();
@@ -99,9 +98,9 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
         final View newPlaylistButton = view.findViewById(R.id.newPlaylist);
         newPlaylistButton.setOnClickListener(ignored -> openCreatePlaylistDialog());
 
-        playlistReactor = playlistManager.getPlaylists()
+        playlistDisposables.add(playlistManager.getPlaylists()
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(this::onPlaylistsReceived);
+                .subscribe(this::onPlaylistsReceived));
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -111,10 +110,12 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        if (playlistReactor != null) playlistReactor.dispose();
-        if (playlistAdapter != null) playlistAdapter.unsetSelectedListener();
+        playlistDisposables.dispose();
+        if (playlistAdapter != null) {
+            playlistAdapter.unsetSelectedListener();
+        }
 
-        playlistReactor = null;
+        playlistDisposables.clear();
         playlistRecyclerView = null;
         playlistAdapter = null;
     }
@@ -148,13 +149,12 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
                                     @NonNull List<StreamEntity> streams) {
         if (getStreams() == null) return;
 
-        @SuppressLint("ShowToast")
         final Toast successToast = Toast.makeText(getContext(),
                 R.string.playlist_add_stream_success, Toast.LENGTH_SHORT);
 
-        manager.appendToPlaylist(playlist.uid, streams)
+        playlistDisposables.add(manager.appendToPlaylist(playlist.uid, streams)
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(ignored -> successToast.show());
+                .subscribe(ignored -> successToast.show()));
 
         getDialog().dismiss();
     }

app/src/main/java/org/schabi/newpipe/local/feed/FeedFragment.java

@@ -21,8 +21,8 @@ import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.channel.ChannelInfo;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.fragments.list.BaseListFragment;
-import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.local.subscription.SubscriptionService;
+import org.schabi.newpipe.report.UserAction;
 
 import java.util.Collections;
 import java.util.HashSet;
@@ -262,7 +262,7 @@ public class FeedFragment extends BaseListFragment<List<SubscriptionEntity>, Voi
      * If chosen feed already displayed, then we request another feed from another
      * subscription, until the subscription table runs out of new items.
      * <p>
-     * This Observer is self-contained and will dispose itself when complete. However, this
+     * This Observer is self-contained and will close itself when complete. However, this
      * does not obey the fragment lifecycle and may continue running in the background
      * until it is complete. This is done due to RxJava2 no longer propagate errors once
      * an observer is unsubscribed while the thread process is still running.

app/src/main/java/org/schabi/newpipe/local/history/HistoryRecordManager.java

@@ -26,25 +26,32 @@ import android.support.annotation.NonNull;
 import org.schabi.newpipe.NewPipeDatabase;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.AppDatabase;
+import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.database.history.dao.SearchHistoryDAO;
 import org.schabi.newpipe.database.history.dao.StreamHistoryDAO;
 import org.schabi.newpipe.database.history.model.SearchHistoryEntry;
 import org.schabi.newpipe.database.history.model.StreamHistoryEntity;
 import org.schabi.newpipe.database.history.model.StreamHistoryEntry;
+import org.schabi.newpipe.database.playlist.PlaylistStreamEntry;
+import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity;
 import org.schabi.newpipe.database.stream.StreamStatisticsEntry;
 import org.schabi.newpipe.database.stream.dao.StreamDAO;
 import org.schabi.newpipe.database.stream.dao.StreamStateDAO;
 import org.schabi.newpipe.database.stream.model.StreamEntity;
 import org.schabi.newpipe.database.stream.model.StreamStateEntity;
+import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
+import org.schabi.newpipe.player.playqueue.PlayQueueItem;
 
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Date;
 import java.util.List;
 
+import io.reactivex.Completable;
 import io.reactivex.Flowable;
 import io.reactivex.Maybe;
+import io.reactivex.Scheduler;
 import io.reactivex.Single;
 import io.reactivex.schedulers.Schedulers;
 
@@ -80,9 +87,9 @@ public class HistoryRecordManager {
         final Date currentTime = new Date();
         return Maybe.fromCallable(() -> database.runInTransaction(() -> {
             final long streamId = streamTable.upsert(new StreamEntity(info));
-            StreamHistoryEntity latestEntry = streamHistoryTable.getLatestEntry();
+            StreamHistoryEntity latestEntry = streamHistoryTable.getLatestEntry(streamId);
 
-            if (latestEntry != null && latestEntry.getStreamUid() == streamId) {
+            if (latestEntry != null) {
                 streamHistoryTable.delete(latestEntry);
                 latestEntry.setAccessDate(currentTime);
                 latestEntry.setRepeatCount(latestEntry.getRepeatCount() + 1);
@@ -99,7 +106,12 @@ public class HistoryRecordManager {
     }
 
     public Single<Integer> deleteWholeStreamHistory() {
-        return Single.fromCallable(() -> streamHistoryTable.deleteAll())
+        return Single.fromCallable(streamHistoryTable::deleteAll)
+                .subscribeOn(Schedulers.io());
+    }
+
+    public Single<Integer> deleteCompelteStreamStateHistory() {
+        return Single.fromCallable(streamStateTable::deleteAll)
                 .subscribeOn(Schedulers.io());
     }
 
@@ -159,8 +171,8 @@ public class HistoryRecordManager {
                 .subscribeOn(Schedulers.io());
     }
 
-    public Single<Integer> deleteWholeSearchHistory() {
-        return Single.fromCallable(() -> searchHistoryTable.deleteAll())
+    public Single<Integer> deleteCompleteSearchHistory() {
+        return Single.fromCallable(searchHistoryTable::deleteAll)
                 .subscribeOn(Schedulers.io());
     }
 
@@ -180,21 +192,104 @@ public class HistoryRecordManager {
     // Stream State History
     ///////////////////////////////////////////////////////
 
-    @SuppressWarnings("unused")
-    public Maybe<StreamStateEntity> loadStreamState(final StreamInfo info) {
-        return Maybe.fromCallable(() -> streamTable.upsert(new StreamEntity(info)))
-                .flatMap(streamId -> streamStateTable.getState(streamId).firstElement())
-                .flatMap(states -> states.isEmpty() ? Maybe.empty() : Maybe.just(states.get(0)))
+    public Maybe<StreamHistoryEntity> getStreamHistory(final StreamInfo info) {
+        return Maybe.fromCallable(() -> {
+            final long streamId = streamTable.upsert(new StreamEntity(info));
+            return streamHistoryTable.getLatestEntry(streamId);
+        }).subscribeOn(Schedulers.io());
+    }
+
+    public Maybe<StreamStateEntity> loadStreamState(final PlayQueueItem queueItem) {
+        return queueItem.getStream()
+                .map((info) -> streamTable.upsert(new StreamEntity(info)))
+                .flatMapPublisher(streamStateTable::getState)
+                .firstElement()
+                .flatMap(list -> list.isEmpty() ? Maybe.empty() : Maybe.just(list.get(0)))
+                .filter(state -> state.isValid((int) queueItem.getDuration()))
                 .subscribeOn(Schedulers.io());
     }
 
-    public Maybe<Long> saveStreamState(@NonNull final StreamInfo info, final long progressTime) {
-        return Maybe.fromCallable(() -> database.runInTransaction(() -> {
+    public Maybe<StreamStateEntity> loadStreamState(final StreamInfo info) {
+        return Single.fromCallable(() -> streamTable.upsert(new StreamEntity(info)))
+                .flatMapPublisher(streamStateTable::getState)
+                .firstElement()
+                .flatMap(list -> list.isEmpty() ? Maybe.empty() : Maybe.just(list.get(0)))
+                .filter(state -> state.isValid((int) info.getDuration()))
+                .subscribeOn(Schedulers.io());
+    }
+
+    public Completable saveStreamState(@NonNull final StreamInfo info, final long progressTime) {
+        return Completable.fromAction(() -> database.runInTransaction(() -> {
             final long streamId = streamTable.upsert(new StreamEntity(info));
-            return streamStateTable.upsert(new StreamStateEntity(streamId, progressTime));
+            final StreamStateEntity state = new StreamStateEntity(streamId, progressTime);
+            if (state.isValid((int) info.getDuration())) {
+                streamStateTable.upsert(state);
+            } else {
+                streamStateTable.deleteState(streamId);
+            }
         })).subscribeOn(Schedulers.io());
     }
 
+    public Single<StreamStateEntity[]> loadStreamState(final InfoItem info) {
+        return Single.fromCallable(() -> {
+            final List<StreamEntity> entities = streamTable.getStream(info.getServiceId(), info.getUrl()).blockingFirst();
+            if (entities.isEmpty()) {
+                return new StreamStateEntity[]{null};
+            }
+            final List<StreamStateEntity> states = streamStateTable.getState(entities.get(0).getUid()).blockingFirst();
+            if (states.isEmpty()) {
+                return new StreamStateEntity[]{null};
+            }
+            return new StreamStateEntity[]{states.get(0)};
+        }).subscribeOn(Schedulers.io());
+    }
+
+    public Single<List<StreamStateEntity>> loadStreamStateBatch(final List<InfoItem> infos) {
+        return Single.fromCallable(() -> {
+            final List<StreamStateEntity> result = new ArrayList<>(infos.size());
+            for (InfoItem info : infos) {
+                final List<StreamEntity> entities = streamTable.getStream(info.getServiceId(), info.getUrl()).blockingFirst();
+                if (entities.isEmpty()) {
+                    result.add(null);
+                    continue;
+                }
+                final List<StreamStateEntity> states = streamStateTable.getState(entities.get(0).getUid()).blockingFirst();
+                if (states.isEmpty()) {
+                    result.add(null);
+                    continue;
+                }
+                result.add(states.get(0));
+            }
+            return result;
+        }).subscribeOn(Schedulers.io());
+    }
+
+    public Single<List<StreamStateEntity>> loadLocalStreamStateBatch(final List<? extends LocalItem> items) {
+        return Single.fromCallable(() -> {
+            final List<StreamStateEntity> result = new ArrayList<>(items.size());
+            for (LocalItem item : items) {
+                long streamId;
+                if (item instanceof StreamStatisticsEntry) {
+                    streamId = ((StreamStatisticsEntry) item).streamId;
+                } else if (item instanceof PlaylistStreamEntity) {
+                    streamId = ((PlaylistStreamEntity) item).getStreamUid();
+                } else if (item instanceof PlaylistStreamEntry) {
+                    streamId = ((PlaylistStreamEntry) item).streamId;
+                } else {
+                    result.add(null);
+                    continue;
+                }
+                final List<StreamStateEntity> states = streamStateTable.getState(streamId).blockingFirst();
+                if (states.isEmpty()) {
+                    result.add(null);
+                    continue;
+                }
+                result.add(states.get(0));
+            }
+            return result;
+        }).subscribeOn(Schedulers.io());
+    }
+
     ///////////////////////////////////////////////////////
     // Utility
     ///////////////////////////////////////////////////////
@@ -202,4 +297,5 @@ public class HistoryRecordManager {
     public Single<Integer> removeOrphanedRecords() {
         return Single.fromCallable(streamTable::deleteOrphans).subscribeOn(Schedulers.io());
     }
+
 }

app/src/main/java/org/schabi/newpipe/local/history/StatisticsPlaylistFragment.java

@@ -2,13 +2,16 @@ package org.schabi.newpipe.local.history;
 
 import android.app.Activity;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.os.Bundle;
 import android.os.Parcelable;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.design.widget.Snackbar;
+import android.support.v7.app.AlertDialog;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
@@ -19,15 +22,20 @@ import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.LocalItem;
+import org.schabi.newpipe.database.playlist.PlaylistStreamEntry;
 import org.schabi.newpipe.database.stream.StreamStatisticsEntry;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
-import org.schabi.newpipe.local.BaseLocalListFragment;
+import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.info_list.InfoItemDialog;
+import org.schabi.newpipe.local.BaseLocalListFragment;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
+import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.report.UserAction;
+import org.schabi.newpipe.settings.SettingsActivity;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
+import org.schabi.newpipe.util.StreamDialogEntry;
 import org.schabi.newpipe.util.ThemeHelper;
 
 import java.util.ArrayList;
@@ -104,6 +112,12 @@ public class StatisticsPlaylistFragment
         }
     }
 
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.menu_history, menu);
+    }
+
     ///////////////////////////////////////////////////////////////////////////
     // Fragment LifeCycle - Views
     ///////////////////////////////////////////////////////////////////////////
@@ -155,6 +169,53 @@ public class StatisticsPlaylistFragment
         });
     }
 
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.action_history_clear:
+                new AlertDialog.Builder(activity)
+                        .setTitle(R.string.delete_view_history_alert)
+                        .setNegativeButton(R.string.cancel, ((dialog, which) -> dialog.dismiss()))
+                        .setPositiveButton(R.string.delete, ((dialog, which) -> {
+                            final Disposable onDelete = recordManager.deleteWholeStreamHistory()
+                                    .observeOn(AndroidSchedulers.mainThread())
+                                    .subscribe(
+                                            howManyDeleted -> Toast.makeText(getContext(),
+                                                    R.string.watch_history_deleted,
+                                                    Toast.LENGTH_SHORT).show(),
+                                            throwable -> ErrorActivity.reportError(getContext(),
+                                                    throwable,
+                                                    SettingsActivity.class, null,
+                                                    ErrorActivity.ErrorInfo.make(
+                                                            UserAction.DELETE_FROM_HISTORY,
+                                                            "none",
+                                                            "Delete view history",
+                                                            R.string.general_error)));
+
+                            final Disposable onClearOrphans = recordManager.removeOrphanedRecords()
+                                    .observeOn(AndroidSchedulers.mainThread())
+                                    .subscribe(
+                                            howManyDeleted -> {},
+                                            throwable -> ErrorActivity.reportError(getContext(),
+                                                    throwable,
+                                                    SettingsActivity.class, null,
+                                                    ErrorActivity.ErrorInfo.make(
+                                                            UserAction.DELETE_FROM_HISTORY,
+                                                            "none",
+                                                            "Delete search history",
+                                                            R.string.general_error)));
+                            disposables.add(onClearOrphans);
+                            disposables.add(onDelete);
+                        }))
+                        .create()
+                        .show();
+                break;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+        return true;
+    }
+
     ///////////////////////////////////////////////////////////////////////////
     // Fragment LifeCycle - Loading
     ///////////////////////////////////////////////////////////////////////////
@@ -250,11 +311,11 @@ public class StatisticsPlaylistFragment
         }
 
         headerPlayAllButton.setOnClickListener(view ->
-                NavigationHelper.playOnMainPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnMainPlayer(activity, getPlayQueue(), false));
         headerPopupButton.setOnClickListener(view ->
-                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(), false));
         headerBackgroundButton.setOnClickListener(view ->
-                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue(), false));
         sortButton.setOnClickListener(view -> toggleSortMode());
 
         hideLoading();
@@ -297,52 +358,44 @@ public class StatisticsPlaylistFragment
         startLoading(true);
     }
 
+    private PlayQueue getPlayQueueStartingAt(StreamStatisticsEntry infoItem) {
+        return getPlayQueue(Math.max(itemListAdapter.getItemsList().indexOf(infoItem), 0));
+    }
+
     private void showStreamDialog(final StreamStatisticsEntry item) {
         final Context context = getContext();
         final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || getActivity() == null) return;
+        if (context == null || context.getResources() == null || activity == null) return;
         final StreamInfoItem infoItem = item.toStreamInfoItem();
 
-        final String[] commands = new String[]{
-                context.getResources().getString(R.string.enqueue_on_background),
-                context.getResources().getString(R.string.enqueue_on_popup),
-                context.getResources().getString(R.string.start_here_on_main),
-                context.getResources().getString(R.string.start_here_on_background),
-                context.getResources().getString(R.string.start_here_on_popup),
-                context.getResources().getString(R.string.delete),
-                context.getResources().getString(R.string.share)
-        };
+        if (infoItem.getStreamType() == StreamType.AUDIO_STREAM) {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.delete,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
+        } else {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.enqueue_on_popup,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.start_here_on_popup,
+                    StreamDialogEntry.delete,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
 
-        final DialogInterface.OnClickListener actions = (dialogInterface, i) -> {
-            final int index = Math.max(itemListAdapter.getItemsList().indexOf(item), 0);
-            switch (i) {
-                case 0:
-                    NavigationHelper.enqueueOnBackgroundPlayer(context, new SinglePlayQueue(infoItem));
-                    break;
-                case 1:
-                    NavigationHelper.enqueueOnPopupPlayer(activity, new SinglePlayQueue(infoItem));
-                    break;
-                case 2:
-                    NavigationHelper.playOnMainPlayer(context, getPlayQueue(index));
-                    break;
-                case 3:
-                    NavigationHelper.playOnBackgroundPlayer(context, getPlayQueue(index));
-                    break;
-                case 4:
-                    NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(index));
-                    break;
-                case 5:
-                    deleteEntry(index);
-                    break;
-                case 6:
-                    shareUrl(item.toStreamInfoItem().getName(), item.toStreamInfoItem().getUrl());
-                    break;
-                default:
-                    break;
-            }
-        };
+            StreamDialogEntry.start_here_on_popup.setCustomAction(
+                    (fragment, infoItemDuplicate) -> NavigationHelper.playOnPopupPlayer(context, getPlayQueueStartingAt(item), true));
+        }
 
-        new InfoItemDialog(getActivity(), infoItem, commands, actions).show();
+        StreamDialogEntry.start_here_on_background.setCustomAction(
+                (fragment, infoItemDuplicate) -> NavigationHelper.playOnBackgroundPlayer(context, getPlayQueueStartingAt(item), true));
+        StreamDialogEntry.delete.setCustomAction((fragment, infoItemDuplicate) ->
+            deleteEntry(Math.max(itemListAdapter.getItemsList().indexOf(item), 0)));
+
+        new InfoItemDialog(activity, infoItem, StreamDialogEntry.getCommands(context), (dialog, which) ->
+                StreamDialogEntry.clickOn(which, this, infoItem)).show();
     }
 
     private void deleteEntry(final int index) {

app/src/main/java/org/schabi/newpipe/local/holder/LocalItemHolder.java

@@ -6,6 +6,7 @@ import android.view.ViewGroup;
 
 import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 
 import java.text.DateFormat;
 
@@ -38,5 +39,8 @@ public abstract class LocalItemHolder extends RecyclerView.ViewHolder {
         this.itemBuilder = itemBuilder;
     }
 
-    public abstract void updateFromItem(final LocalItem item, final DateFormat dateFormat);
+    public abstract void updateFromItem(final LocalItem item, HistoryRecordManager historyRecordManager, final DateFormat dateFormat);
+
+    public void updateState(final LocalItem localItem, HistoryRecordManager historyRecordManager) {
+    }
 }

app/src/main/java/org/schabi/newpipe/local/holder/LocalPlaylistItemHolder.java

@@ -6,6 +6,7 @@ import android.view.ViewGroup;
 import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
 import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 
 import java.text.DateFormat;
@@ -21,7 +22,7 @@ public class LocalPlaylistItemHolder extends PlaylistItemHolder {
     }
 
     @Override
-    public void updateFromItem(final LocalItem localItem, final DateFormat dateFormat) {
+    public void updateFromItem(final LocalItem localItem, HistoryRecordManager historyRecordManager, final DateFormat dateFormat) {
         if (!(localItem instanceof PlaylistMetadataEntry)) return;
         final PlaylistMetadataEntry item = (PlaylistMetadataEntry) localItem;
 
@@ -32,6 +33,6 @@ public class LocalPlaylistItemHolder extends PlaylistItemHolder {
         itemBuilder.displayImage(item.thumbnailUrl, itemThumbnailView,
                 ImageDisplayConstants.DISPLAY_PLAYLIST_OPTIONS);
 
-        super.updateFromItem(localItem, dateFormat);
+        super.updateFromItem(localItem, historyRecordManager, dateFormat);
     }
 }

app/src/main/java/org/schabi/newpipe/local/holder/LocalPlaylistStreamItemHolder.java

@@ -10,12 +10,18 @@ import android.widget.TextView;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.database.playlist.PlaylistStreamEntry;
+import org.schabi.newpipe.database.stream.model.StreamStateEntity;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.util.AnimationUtils;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.views.AnimatedProgressBar;
 
 import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.concurrent.TimeUnit;
 
 public class LocalPlaylistStreamItemHolder extends LocalItemHolder {
 
@@ -24,6 +30,7 @@ public class LocalPlaylistStreamItemHolder extends LocalItemHolder {
     public final TextView itemAdditionalDetailsView;
     public final TextView itemDurationView;
     public final View itemHandleView;
+    public final AnimatedProgressBar itemProgressView;
 
     LocalPlaylistStreamItemHolder(LocalItemBuilder infoItemBuilder, int layoutId, ViewGroup parent) {
         super(infoItemBuilder, layoutId, parent);
@@ -33,6 +40,7 @@ public class LocalPlaylistStreamItemHolder extends LocalItemHolder {
         itemAdditionalDetailsView = itemView.findViewById(R.id.itemAdditionalDetails);
         itemDurationView = itemView.findViewById(R.id.itemDurationView);
         itemHandleView = itemView.findViewById(R.id.itemHandle);
+        itemProgressView = itemView.findViewById(R.id.itemProgressView);
     }
 
     public LocalPlaylistStreamItemHolder(LocalItemBuilder infoItemBuilder, ViewGroup parent) {
@@ -40,7 +48,7 @@ public class LocalPlaylistStreamItemHolder extends LocalItemHolder {
     }
 
     @Override
-    public void updateFromItem(final LocalItem localItem, final DateFormat dateFormat) {
+    public void updateFromItem(final LocalItem localItem, HistoryRecordManager historyRecordManager, final DateFormat dateFormat) {
         if (!(localItem instanceof PlaylistStreamEntry)) return;
         final PlaylistStreamEntry item = (PlaylistStreamEntry) localItem;
 
@@ -53,6 +61,15 @@ public class LocalPlaylistStreamItemHolder extends LocalItemHolder {
             itemDurationView.setBackgroundColor(ContextCompat.getColor(itemBuilder.getContext(),
                     R.color.duration_background_color));
             itemDurationView.setVisibility(View.VISIBLE);
+
+            StreamStateEntity state = historyRecordManager.loadLocalStreamStateBatch(new ArrayList<LocalItem>() {{ add(localItem); }}).blockingGet().get(0);
+            if (state != null) {
+                itemProgressView.setVisibility(View.VISIBLE);
+                itemProgressView.setMax((int) item.duration);
+                itemProgressView.setProgress((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+            } else {
+                itemProgressView.setVisibility(View.GONE);
+            }
         } else {
             itemDurationView.setVisibility(View.GONE);
         }
@@ -79,6 +96,25 @@ public class LocalPlaylistStreamItemHolder extends LocalItemHolder {
         itemHandleView.setOnTouchListener(getOnTouchListener(item));
     }
 
+    @Override
+    public void updateState(LocalItem localItem, HistoryRecordManager historyRecordManager) {
+        if (!(localItem instanceof PlaylistStreamEntry)) return;
+        final PlaylistStreamEntry item = (PlaylistStreamEntry) localItem;
+
+        StreamStateEntity state = historyRecordManager.loadLocalStreamStateBatch(new ArrayList<LocalItem>() {{ add(localItem); }}).blockingGet().get(0);
+        if (state != null && item.duration > 0) {
+            itemProgressView.setMax((int) item.duration);
+            if (itemProgressView.getVisibility() == View.VISIBLE) {
+                itemProgressView.setProgressAnimated((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+            } else {
+                itemProgressView.setProgress((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+                AnimationUtils.animateView(itemProgressView, true, 500);
+            }
+        } else if (itemProgressView.getVisibility() == View.VISIBLE) {
+            AnimationUtils.animateView(itemProgressView, false, 500);
+        }
+    }
+
     private View.OnTouchListener getOnTouchListener(final PlaylistStreamEntry item) {
         return (view, motionEvent) -> {
             view.performClick();

app/src/main/java/org/schabi/newpipe/local/holder/LocalStatisticStreamItemHolder.java

@@ -10,12 +10,18 @@ import android.widget.TextView;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.database.stream.StreamStatisticsEntry;
+import org.schabi.newpipe.database.stream.model.StreamStateEntity;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.util.AnimationUtils;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.views.AnimatedProgressBar;
 
 import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.concurrent.TimeUnit;
 
 /*
  * Created by Christian Schabesberger on 01.08.16.
@@ -45,6 +51,7 @@ public class LocalStatisticStreamItemHolder extends LocalItemHolder {
     public final TextView itemDurationView;
     @Nullable
     public final TextView itemAdditionalDetails;
+    public final AnimatedProgressBar itemProgressView;
 
     public LocalStatisticStreamItemHolder(LocalItemBuilder itemBuilder, ViewGroup parent) {
         this(itemBuilder, R.layout.list_stream_item, parent);
@@ -58,6 +65,7 @@ public class LocalStatisticStreamItemHolder extends LocalItemHolder {
         itemUploaderView = itemView.findViewById(R.id.itemUploaderView);
         itemDurationView = itemView.findViewById(R.id.itemDurationView);
         itemAdditionalDetails = itemView.findViewById(R.id.itemAdditionalDetails);
+        itemProgressView = itemView.findViewById(R.id.itemProgressView);
     }
 
     private String getStreamInfoDetailLine(final StreamStatisticsEntry entry,
@@ -70,7 +78,7 @@ public class LocalStatisticStreamItemHolder extends LocalItemHolder {
     }
 
     @Override
-    public void updateFromItem(final LocalItem localItem, final DateFormat dateFormat) {
+    public void updateFromItem(final LocalItem localItem, HistoryRecordManager historyRecordManager, final DateFormat dateFormat) {
         if (!(localItem instanceof StreamStatisticsEntry)) return;
         final StreamStatisticsEntry item = (StreamStatisticsEntry) localItem;
 
@@ -82,8 +90,18 @@ public class LocalStatisticStreamItemHolder extends LocalItemHolder {
             itemDurationView.setBackgroundColor(ContextCompat.getColor(itemBuilder.getContext(),
                     R.color.duration_background_color));
             itemDurationView.setVisibility(View.VISIBLE);
+
+            StreamStateEntity state = historyRecordManager.loadLocalStreamStateBatch(new ArrayList<LocalItem>() {{ add(localItem); }}).blockingGet().get(0);
+            if (state != null) {
+                itemProgressView.setVisibility(View.VISIBLE);
+                itemProgressView.setMax((int) item.duration);
+                itemProgressView.setProgress((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+            } else {
+                itemProgressView.setVisibility(View.GONE);
+            }
         } else {
             itemDurationView.setVisibility(View.GONE);
+            itemProgressView.setVisibility(View.GONE);
         }
 
         if (itemAdditionalDetails != null) {
@@ -108,4 +126,23 @@ public class LocalStatisticStreamItemHolder extends LocalItemHolder {
             return true;
         });
     }
+
+    @Override
+    public void updateState(LocalItem localItem, HistoryRecordManager historyRecordManager) {
+        if (!(localItem instanceof StreamStatisticsEntry)) return;
+        final StreamStatisticsEntry item = (StreamStatisticsEntry) localItem;
+
+        StreamStateEntity state = historyRecordManager.loadLocalStreamStateBatch(new ArrayList<LocalItem>() {{ add(localItem); }}).blockingGet().get(0);
+        if (state != null && item.duration > 0) {
+            itemProgressView.setMax((int) item.duration);
+            if (itemProgressView.getVisibility() == View.VISIBLE) {
+                itemProgressView.setProgressAnimated((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+            } else {
+                itemProgressView.setProgress((int) TimeUnit.MILLISECONDS.toSeconds(state.getProgressTime()));
+                AnimationUtils.animateView(itemProgressView, true, 500);
+            }
+        } else if (itemProgressView.getVisibility() == View.VISIBLE) {
+            AnimationUtils.animateView(itemProgressView, false, 500);
+        }
+    }
 }

app/src/main/java/org/schabi/newpipe/local/holder/PlaylistItemHolder.java

@@ -7,6 +7,7 @@ import android.widget.TextView;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 
 import java.text.DateFormat;
 
@@ -31,7 +32,7 @@ public abstract class PlaylistItemHolder extends LocalItemHolder {
     }
 
     @Override
-    public void updateFromItem(final LocalItem localItem, final DateFormat dateFormat) {
+    public void updateFromItem(final LocalItem localItem, HistoryRecordManager historyRecordManager, final DateFormat dateFormat) {
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnItemSelectedListener() != null) {
                 itemBuilder.getOnItemSelectedListener().selected(localItem);

app/src/main/java/org/schabi/newpipe/local/holder/RemotePlaylistItemHolder.java

@@ -6,6 +6,7 @@ import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.ImageDisplayConstants;
 import org.schabi.newpipe.util.Localization;
 
@@ -21,7 +22,7 @@ public class RemotePlaylistItemHolder extends PlaylistItemHolder {
     }
 
     @Override
-    public void updateFromItem(final LocalItem localItem, final DateFormat dateFormat) {
+    public void updateFromItem(final LocalItem localItem, HistoryRecordManager historyRecordManager, final DateFormat dateFormat) {
         if (!(localItem instanceof PlaylistRemoteEntity)) return;
         final PlaylistRemoteEntity item = (PlaylistRemoteEntity) localItem;
 
@@ -33,6 +34,6 @@ public class RemotePlaylistItemHolder extends PlaylistItemHolder {
         itemBuilder.displayImage(item.getThumbnailUrl(), itemThumbnailView,
                 ImageDisplayConstants.DISPLAY_PLAYLIST_OPTIONS);
 
-        super.updateFromItem(localItem, dateFormat);
+        super.updateFromItem(localItem, historyRecordManager, dateFormat);
     }
 }

app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistFragment.java

@@ -2,7 +2,6 @@ package org.schabi.newpipe.local.playlist;
 
 import android.app.Activity;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.os.Bundle;
 import android.os.Parcelable;
 import android.support.annotation.NonNull;
@@ -26,14 +25,16 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.database.playlist.PlaylistStreamEntry;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
-import org.schabi.newpipe.local.BaseLocalListFragment;
+import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.info_list.InfoItemDialog;
+import org.schabi.newpipe.local.BaseLocalListFragment;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
+import org.schabi.newpipe.util.StreamDialogEntry;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -318,11 +319,11 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
         setVideoCount(itemListAdapter.getItemsList().size());
 
         headerPlayAllButton.setOnClickListener(view ->
-                NavigationHelper.playOnMainPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnMainPlayer(activity, getPlayQueue(), false));
         headerPopupButton.setOnClickListener(view ->
-                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(), false));
         headerBackgroundButton.setOnClickListener(view ->
-                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue()));
+                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue(), false));
 
         hideLoading();
     }
@@ -510,59 +511,48 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
     // Utils
     //////////////////////////////////////////////////////////////////////////*/
 
+    private PlayQueue getPlayQueueStartingAt(PlaylistStreamEntry infoItem) {
+        return getPlayQueue(Math.max(itemListAdapter.getItemsList().indexOf(infoItem), 0));
+    }
+
     protected void showStreamItemDialog(final PlaylistStreamEntry item) {
         final Context context = getContext();
         final Activity activity = getActivity();
-        if (context == null || context.getResources() == null || getActivity() == null) return;
-
+        if (context == null || context.getResources() == null || activity == null) return;
         final StreamInfoItem infoItem = item.toStreamInfoItem();
 
-        final String[] commands = new String[]{
-                context.getResources().getString(R.string.enqueue_on_background),
-                context.getResources().getString(R.string.enqueue_on_popup),
-                context.getResources().getString(R.string.start_here_on_main),
-                context.getResources().getString(R.string.start_here_on_background),
-                context.getResources().getString(R.string.start_here_on_popup),
-                context.getResources().getString(R.string.set_as_playlist_thumbnail),
-                context.getResources().getString(R.string.delete),
-                context.getResources().getString(R.string.share)
-        };
+        if (infoItem.getStreamType() == StreamType.AUDIO_STREAM) {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.set_as_playlist_thumbnail,
+                    StreamDialogEntry.delete,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
+        } else {
+            StreamDialogEntry.setEnabledEntries(
+                    StreamDialogEntry.enqueue_on_background,
+                    StreamDialogEntry.enqueue_on_popup,
+                    StreamDialogEntry.start_here_on_background,
+                    StreamDialogEntry.start_here_on_popup,
+                    StreamDialogEntry.set_as_playlist_thumbnail,
+                    StreamDialogEntry.delete,
+                    StreamDialogEntry.append_playlist,
+                    StreamDialogEntry.share);
 
-        final DialogInterface.OnClickListener actions = (dialogInterface, i) -> {
-            final int index = Math.max(itemListAdapter.getItemsList().indexOf(item), 0);
-            switch (i) {
-                case 0:
-                    NavigationHelper.enqueueOnBackgroundPlayer(context,
-                            new SinglePlayQueue(infoItem));
-                    break;
-                case 1:
-                    NavigationHelper.enqueueOnPopupPlayer(activity, new
-                            SinglePlayQueue(infoItem));
-                    break;
-                case 2:
-                    NavigationHelper.playOnMainPlayer(context, getPlayQueue(index));
-                    break;
-                case 3:
-                    NavigationHelper.playOnBackgroundPlayer(context, getPlayQueue(index));
-                    break;
-                case 4:
-                    NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(index));
-                    break;
-                case 5:
-                    changeThumbnailUrl(item.thumbnailUrl);
-                    break;
-                case 6:
-                    deleteItem(item);
-                    break;
-                case 7:
-                    shareUrl(item.toStreamInfoItem().getName(), item.toStreamInfoItem().getUrl());
-                    break;
-                default:
-                    break;
-            }
-        };
+            StreamDialogEntry.start_here_on_popup.setCustomAction(
+                    (fragment, infoItemDuplicate) -> NavigationHelper.playOnPopupPlayer(context, getPlayQueueStartingAt(item), true));
+        }
 
-        new InfoItemDialog(getActivity(), infoItem, commands, actions).show();
+        StreamDialogEntry.start_here_on_background.setCustomAction(
+                (fragment, infoItemDuplicate) -> NavigationHelper.playOnBackgroundPlayer(context, getPlayQueueStartingAt(item), true));
+        StreamDialogEntry.set_as_playlist_thumbnail.setCustomAction(
+                (fragment, infoItemDuplicate) -> changeThumbnailUrl(item.thumbnailUrl));
+        StreamDialogEntry.delete.setCustomAction(
+                (fragment, infoItemDuplicate) -> deleteItem(item));
+
+        new InfoItemDialog(activity, infoItem, StreamDialogEntry.getCommands(context), (dialog, which) ->
+                StreamDialogEntry.clickOn(which, this, infoItem)).show();
     }
 
     private void setInitialData(long playlistId, String name) {

app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionFragment.java

@@ -23,7 +23,6 @@ import android.support.annotation.Nullable;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.content.LocalBroadcastManager;
 import android.support.v7.app.ActionBar;
-import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.GridLayoutManager;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
@@ -48,15 +47,14 @@ import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.subscription.SubscriptionExtractor;
 import org.schabi.newpipe.fragments.BaseStateFragment;
 import org.schabi.newpipe.info_list.InfoListAdapter;
-import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.local.subscription.services.SubscriptionsExportService;
 import org.schabi.newpipe.local.subscription.services.SubscriptionsImportService;
-import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.util.FilePickerActivityHelper;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
 import org.schabi.newpipe.util.ServiceHelper;
+import org.schabi.newpipe.util.ShareUtils;
 import org.schabi.newpipe.util.ThemeHelper;
 import org.schabi.newpipe.views.CollapsibleView;
 
@@ -130,6 +128,11 @@ public class SubscriptionFragment extends BaseStateFragment<List<SubscriptionEnt
         subscriptionService = SubscriptionService.getInstance(activity);
     }
 
+    @Override
+    public void onDetach() {
+        super.onDetach();
+    }
+
     @Nullable
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
@@ -376,7 +379,6 @@ public class SubscriptionFragment extends BaseStateFragment<List<SubscriptionEnt
 
         });
 
-        //noinspection ConstantConditions
         whatsNewItemListHeader.setOnClickListener(v -> {
             FragmentManager fragmentManager = getFM();
             NavigationHelper.openWhatsNewFragment(fragmentManager);
@@ -390,17 +392,17 @@ public class SubscriptionFragment extends BaseStateFragment<List<SubscriptionEnt
         if (context == null || context.getResources() == null || getActivity() == null) return;
 
         final String[] commands = new String[]{
-                context.getResources().getString(R.string.share),
-                context.getResources().getString(R.string.unsubscribe)
+                context.getResources().getString(R.string.unsubscribe),
+                context.getResources().getString(R.string.share)
         };
 
         final DialogInterface.OnClickListener actions = (dialogInterface, i) -> {
             switch (i) {
                 case 0:
-                    shareChannel(selectedItem);
+                    deleteChannel(selectedItem);
                     break;
                 case 1:
-                    deleteChannel(selectedItem);
+                    shareChannel(selectedItem);
                     break;
                 default:
                     break;
@@ -424,12 +426,12 @@ public class SubscriptionFragment extends BaseStateFragment<List<SubscriptionEnt
 
     }
 
-    private void shareChannel (ChannelInfoItem selectedItem) {
-        shareUrl(selectedItem.getName(), selectedItem.getUrl());
+    private void shareChannel(ChannelInfoItem selectedItem) {
+        ShareUtils.shareUrl(getContext(), selectedItem.getName(), selectedItem.getUrl());
     }
 
     @SuppressLint("CheckResult")
-    private void deleteChannel (ChannelInfoItem selectedItem) {
+    private void deleteChannel(ChannelInfoItem selectedItem) {
         subscriptionService.subscriptionTable()
                 .getSubscription(selectedItem.getServiceId(), selectedItem.getUrl())
                 .toObservable()
@@ -441,7 +443,7 @@ public class SubscriptionFragment extends BaseStateFragment<List<SubscriptionEnt
 
 
 
-    private Observer<List<SubscriptionEntity>> getDeleteObserver(){
+    private Observer<List<SubscriptionEntity>> getDeleteObserver() {
         return new Observer<List<SubscriptionEntity>>() {
             @Override
             public void onSubscribe(Disposable d) {

app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionService.java

@@ -147,11 +147,16 @@ public class SubscriptionService {
     }
 
     private boolean isSubscriptionUpToDate(final ChannelInfo info, final SubscriptionEntity entity) {
-        return info.getUrl().equals(entity.getUrl()) &&
+        return equalsAndNotNull(info.getUrl(), entity.getUrl()) &&
                 info.getServiceId() == entity.getServiceId() &&
                 info.getName().equals(entity.getName()) &&
-                info.getAvatarUrl().equals(entity.getAvatarUrl()) &&
-                info.getDescription().equals(entity.getDescription()) &&
+                equalsAndNotNull(info.getAvatarUrl(), entity.getAvatarUrl()) &&
+                equalsAndNotNull(info.getDescription(), entity.getDescription()) &&
                 info.getSubscriberCount() == entity.getSubscriberCount();
     }
+
+    private boolean equalsAndNotNull(final Object o1, final Object o2) {
+        return (o1 != null && o2 != null)
+                && o1.equals(o2);
+    }
 }

app/src/main/java/org/schabi/newpipe/player/AudioServiceLeakFix.java

@@ -0,0 +1,30 @@
+package org.schabi.newpipe.player;
+
+import android.content.Context;
+import android.content.ContextWrapper;
+
+/**
+ * Fixes a leak caused by AudioManager using an Activity context.
+ * Tracked at https://android-review.googlesource.com/#/c/140481/1 and
+ * https://github.com/square/leakcanary/issues/205
+ * Source:
+ * https://gist.github.com/jankovd/891d96f476f7a9ce24e2
+ */
+public class AudioServiceLeakFix extends ContextWrapper {
+
+	AudioServiceLeakFix(Context base) {
+		super(base);
+	}
+
+	public static ContextWrapper preventLeakOf(Context base) {
+		return new AudioServiceLeakFix(base);
+	}
+
+	@Override
+	public Object getSystemService(String name) {
+		if (Context.AUDIO_SERVICE.equals(name)) {
+			return getApplicationContext().getSystemService(name);
+		}
+		return super.getSystemService(name);
+	}
+}

app/src/main/java/org/schabi/newpipe/player/BackgroundPlayer.java

@@ -130,6 +130,11 @@ public final class BackgroundPlayer extends Service {
         onClose();
     }
 
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(AudioServiceLeakFix.preventLeakOf(base));
+    }
+
     @Override
     public IBinder onBind(Intent intent) {
         return mBinder;
@@ -145,6 +150,7 @@ public final class BackgroundPlayer extends Service {
             lockManager.releaseWifiAndCpu();
         }
         if (basePlayerImpl != null) {
+            basePlayerImpl.savePlaybackState();
             basePlayerImpl.stopActivityBinding();
             basePlayerImpl.destroy();
         }
@@ -270,6 +276,8 @@ public final class BackgroundPlayer extends Service {
     protected class BasePlayerImpl extends BasePlayer {
 
         @NonNull final private AudioPlaybackResolver resolver;
+        private int cachedDuration;
+        private String cachedDurationString;
 
         BasePlayerImpl(Context context) {
             super(context);
@@ -344,10 +352,14 @@ public final class BackgroundPlayer extends Service {
 
             if (!shouldUpdateOnProgress) return;
             resetNotification();
-            if(Build.VERSION.SDK_INT >= 26 /*Oreo*/) updateNotificationThumbnail();
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O /*Oreo*/) updateNotificationThumbnail();
             if (bigNotRemoteView != null) {
+                if(cachedDuration != duration) {
+                    cachedDuration = duration;
+                    cachedDurationString = getTimeString(duration);
+                }
                 bigNotRemoteView.setProgressBar(R.id.notificationProgressBar, duration, currentProgress, false);
-                bigNotRemoteView.setTextViewText(R.id.notificationTime, getTimeString(currentProgress) + " / " + getTimeString(duration));
+                bigNotRemoteView.setTextViewText(R.id.notificationTime, getTimeString(currentProgress) + " / " + cachedDurationString);
             }
             if (notRemoteView != null) {
                 notRemoteView.setProgressBar(R.id.notificationProgressBar, duration, currentProgress, false);

app/src/main/java/org/schabi/newpipe/player/BasePlayer.java

@@ -23,9 +23,11 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.media.AudioManager;
+import android.preference.PreferenceManager;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.util.Log;
@@ -145,6 +147,8 @@ public abstract class BasePlayer implements
     @NonNull
     public static final String APPEND_ONLY = "append_only";
     @NonNull
+    public static final String RESUME_PLAYBACK = "resume_playback";
+    @NonNull
     public static final String SELECT_ON_APPEND = "select_on_append";
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -183,6 +187,7 @@ public abstract class BasePlayer implements
     protected MediaSessionManager mediaSessionManager;
 
     private boolean isPrepared = false;
+    private Disposable stateLoader;
 
     //////////////////////////////////////////////////////////////////////////*/
 
@@ -207,8 +212,7 @@ public abstract class BasePlayer implements
         final DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
         this.dataSource = new PlayerDataSource(context, userAgent, bandwidthMeter);
 
-        final TrackSelection.Factory trackSelectionFactory =
-                PlayerHelper.getQualitySelector(context, bandwidthMeter);
+        final TrackSelection.Factory trackSelectionFactory = PlayerHelper.getQualitySelector(context);
         this.trackSelector = new CustomTrackSelector(trackSelectionFactory);
 
         this.loadControl = new LoadController(context);
@@ -225,7 +229,7 @@ public abstract class BasePlayer implements
     public void initPlayer(final boolean playOnReady) {
         if (DEBUG) Log.d(TAG, "initPlayer() called with: context = [" + context + "]");
 
-        simpleExoPlayer = ExoPlayerFactory.newSimpleInstance(renderFactory, trackSelector, loadControl);
+        simpleExoPlayer = ExoPlayerFactory.newSimpleInstance(context, renderFactory, trackSelector, loadControl);
         simpleExoPlayer.addListener(this);
         simpleExoPlayer.setPlayWhenReady(playOnReady);
         simpleExoPlayer.setSeekParameters(PlayerHelper.getSeekParameters(context));
@@ -270,6 +274,34 @@ public abstract class BasePlayer implements
         final boolean playbackSkipSilence = intent.getBooleanExtra(PLAYBACK_SKIP_SILENCE,
                 getPlaybackSkipSilence());
 
+        // seek to timestamp if stream is already playing
+        if (simpleExoPlayer != null
+                && queue.size() == 1
+                && playQueue != null
+                && playQueue.getItem() != null
+                && queue.getItem().getUrl().equals(playQueue.getItem().getUrl())
+                && queue.getItem().getRecoveryPosition() != PlayQueueItem.RECOVERY_UNSET
+                ) {
+            simpleExoPlayer.seekTo(playQueue.getIndex(), queue.getItem().getRecoveryPosition());
+            return;
+
+        } else if (intent.getBooleanExtra(RESUME_PLAYBACK, false) && isPlaybackResumeEnabled()) {
+            final PlayQueueItem item = queue.getItem();
+            if (item != null && item.getRecoveryPosition() == PlayQueueItem.RECOVERY_UNSET) {
+                stateLoader = recordManager.loadStreamState(item)
+                        .observeOn(AndroidSchedulers.mainThread())
+                        .doFinally(() -> initPlayback(queue, repeatMode, playbackSpeed, playbackPitch, playbackSkipSilence,
+                                /*playOnInit=*/true))
+                        .subscribe(
+                                state -> queue.setRecovery(queue.getIndex(), state.getProgressTime()),
+                                error -> {
+                                    if (DEBUG) error.printStackTrace();
+                                }
+                        );
+                databaseUpdateReactor.add(stateLoader);
+                return;
+            }
+        }
         // Good to go...
         initPlayback(queue, repeatMode, playbackSpeed, playbackPitch, playbackSkipSilence,
                 /*playOnInit=*/true);
@@ -307,6 +339,7 @@ public abstract class BasePlayer implements
         if (audioReactor != null) audioReactor.dispose();
         if (playbackManager != null) playbackManager.dispose();
         if (mediaSessionManager != null) mediaSessionManager.dispose();
+        if (stateLoader != null) stateLoader.dispose();
 
         if (playQueueAdapter != null) {
             playQueueAdapter.unsetSelectedListener();
@@ -604,6 +637,9 @@ public abstract class BasePlayer implements
                 break;
             case Player.STATE_ENDED: // 4
                 changeState(STATE_COMPLETED);
+                if (currentMetadata != null) {
+                    resetPlaybackState(currentMetadata.getMetadata());
+                }
                 isPrepared = false;
                 break;
         }
@@ -710,6 +746,7 @@ public abstract class BasePlayer implements
             case DISCONTINUITY_REASON_SEEK_ADJUSTMENT:
             case DISCONTINUITY_REASON_INTERNAL:
                 if (playQueue.getIndex() != newWindowIndex) {
+                    resetPlaybackState(playQueue.getItem());
                     playQueue.setIndex(newWindowIndex);
                 }
                 break;
@@ -739,6 +776,9 @@ public abstract class BasePlayer implements
     @Override
     public void onSeekProcessed() {
         if (DEBUG) Log.d(TAG, "ExoPlayer - onSeekProcessed() called");
+        if (isPrepared) {
+            savePlaybackState();
+        }
     }
     /*//////////////////////////////////////////////////////////////////////////
     // Playback Listener
@@ -1006,27 +1046,46 @@ public abstract class BasePlayer implements
         }
     }
 
-    protected void savePlaybackState(final StreamInfo info, final long progress) {
+    private void savePlaybackState(final StreamInfo info, final long progress) {
         if (info == null) return;
-        final Disposable stateSaver = recordManager.saveStreamState(info, progress)
-                .observeOn(AndroidSchedulers.mainThread())
-                .onErrorComplete()
-                .subscribe(
-                        ignored -> {/* successful */},
-                        error -> Log.e(TAG, "savePlaybackState() failure: ", error)
-                );
-        databaseUpdateReactor.add(stateSaver);
+        if (DEBUG) Log.d(TAG, "savePlaybackState() called");
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        if (prefs.getBoolean(context.getString(R.string.enable_watch_history_key), true)) {
+            final Disposable stateSaver = recordManager.saveStreamState(info, progress)
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .doOnError((e) -> {
+                        if (DEBUG) e.printStackTrace();
+                    })
+                    .onErrorComplete()
+                    .subscribe();
+            databaseUpdateReactor.add(stateSaver);
+        }
     }
 
-    private void savePlaybackState() {
+    private void resetPlaybackState(final PlayQueueItem queueItem) {
+        if (queueItem == null) return;
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        if (prefs.getBoolean(context.getString(R.string.enable_watch_history_key), true)) {
+            final Disposable stateSaver = queueItem.getStream()
+                    .flatMapCompletable(info -> recordManager.saveStreamState(info, 0))
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .doOnError((e) -> {
+                        if (DEBUG) e.printStackTrace();
+                    })
+                    .onErrorComplete()
+                    .subscribe();
+            databaseUpdateReactor.add(stateSaver);
+        }
+    }
+
+    public void resetPlaybackState(final StreamInfo info) {
+        savePlaybackState(info, 0);
+    }
+
+    public void savePlaybackState() {
         if (simpleExoPlayer == null || currentMetadata == null) return;
         final StreamInfo currentInfo = currentMetadata.getMetadata();
-
-        if (simpleExoPlayer.getCurrentPosition() > RECOVERY_SKIP_THRESHOLD_MILLIS &&
-                simpleExoPlayer.getCurrentPosition() <
-                        simpleExoPlayer.getDuration() - RECOVERY_SKIP_THRESHOLD_MILLIS) {
-            savePlaybackState(currentInfo, simpleExoPlayer.getCurrentPosition());
-        }
+        savePlaybackState(currentInfo, simpleExoPlayer.getCurrentPosition());
     }
 
     private void maybeUpdateCurrentMetadata() {
@@ -1214,4 +1273,10 @@ public abstract class BasePlayer implements
     public boolean gotDestroyed() {
         return simpleExoPlayer == null;
     }
+
+    private boolean isPlaybackResumeEnabled() {
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        return prefs.getBoolean(context.getString(R.string.enable_watch_history_key), true)
+                && prefs.getBoolean(context.getString(R.string.enable_playback_resume_key), true);
+    }
 }

app/src/main/java/org/schabi/newpipe/player/MainVideoPlayer.java

@@ -24,11 +24,13 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
+import android.database.ContentObserver;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.media.AudioManager;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.Handler;
 import android.preference.PreferenceManager;
 import android.provider.Settings;
 import android.support.annotation.ColorInt;
@@ -46,6 +48,7 @@ import android.view.GestureDetector;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.WindowManager;
+import android.widget.Button;
 import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.PopupMenu;
@@ -75,6 +78,7 @@ import org.schabi.newpipe.util.AnimationUtils;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.PermissionHelper;
+import org.schabi.newpipe.util.ShareUtils;
 import org.schabi.newpipe.util.StateSaver;
 import org.schabi.newpipe.util.ThemeHelper;
 
@@ -111,6 +115,8 @@ public final class MainVideoPlayer extends AppCompatActivity
     private boolean isInMultiWindow;
     private boolean isBackPressed;
 
+    private ContentObserver rotationObserver;
+
     /*//////////////////////////////////////////////////////////////////////////
     // Activity LifeCycle
     //////////////////////////////////////////////////////////////////////////*/
@@ -145,6 +151,23 @@ public final class MainVideoPlayer extends AppCompatActivity
             Toast.makeText(this, R.string.general_error, Toast.LENGTH_SHORT).show();
             finish();
         }
+
+        rotationObserver = new ContentObserver(new Handler()) {
+            @Override
+            public void onChange(boolean selfChange) {
+                super.onChange(selfChange);
+                if (globalScreenOrientationLocked()) {
+                    final boolean lastOrientationWasLandscape = defaultPreferences.getBoolean(
+                            getString(R.string.last_orientation_landscape_key), false);
+                    setLandscape(lastOrientationWasLandscape);
+                } else {
+                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
+                }
+            }
+        };
+        getContentResolver().registerContentObserver(
+                Settings.System.getUriFor(Settings.System.ACCELEROMETER_ROTATION),
+                false, rotationObserver);
     }
 
     @Override
@@ -237,10 +260,24 @@ public final class MainVideoPlayer extends AppCompatActivity
         playerState = createPlayerState();
         playerImpl.destroy();
 
+        if (rotationObserver != null)
+            getContentResolver().unregisterContentObserver(rotationObserver);
+
         isInMultiWindow = false;
         isBackPressed = false;
     }
 
+    @Override
+    protected void attachBaseContext(Context newBase) {
+        super.attachBaseContext(AudioServiceLeakFix.preventLeakOf(newBase));
+    }
+
+    @Override
+    protected void onPause() {
+        playerImpl.savePlaybackState();
+        super.onPause();
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // State Saving
     //////////////////////////////////////////////////////////////////////////*/
@@ -277,14 +314,9 @@ public final class MainVideoPlayer extends AppCompatActivity
         if (DEBUG) Log.d(TAG, "showSystemUi() called");
         if (playerImpl != null && playerImpl.queueVisible) return;
 
-        final int visibility;
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-            visibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
-                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
-                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
-        } else {
-            visibility = View.STATUS_BAR_VISIBLE;
-        }
+        final int visibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             @ColorInt final int systenUiColor =
@@ -353,11 +385,7 @@ public final class MainVideoPlayer extends AppCompatActivity
 
     protected void setShuffleButton(final ImageButton shuffleButton, final boolean shuffled) {
         final int shuffleAlpha = shuffled ? 255 : 77;
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-            shuffleButton.setImageAlpha(shuffleAlpha);
-        } else {
-            shuffleButton.setAlpha(shuffleAlpha);
-        }
+        shuffleButton.setImageAlpha(shuffleAlpha);
     }
 
     private boolean isInMultiWindow() {
@@ -397,6 +425,7 @@ public final class MainVideoPlayer extends AppCompatActivity
         private ImageButton playPauseButton;
         private ImageButton playPreviousButton;
         private ImageButton playNextButton;
+        private Button closeButton;
 
         private RelativeLayout queueLayout;
         private ImageButton itemsListCloseButton;
@@ -406,6 +435,7 @@ public final class MainVideoPlayer extends AppCompatActivity
         private boolean queueVisible;
 
         private ImageButton moreOptionsButton;
+        private ImageButton shareButton;
         private ImageButton toggleOrientationButton;
         private ImageButton switchPopupButton;
         private ImageButton switchBackgroundButton;
@@ -437,9 +467,11 @@ public final class MainVideoPlayer extends AppCompatActivity
             this.playPauseButton = rootView.findViewById(R.id.playPauseButton);
             this.playPreviousButton = rootView.findViewById(R.id.playPreviousButton);
             this.playNextButton = rootView.findViewById(R.id.playNextButton);
+            this.closeButton = rootView.findViewById(R.id.closeButton);
 
             this.moreOptionsButton = rootView.findViewById(R.id.moreOptionsButton);
             this.secondaryControls = rootView.findViewById(R.id.secondaryControls);
+            this.shareButton = rootView.findViewById(R.id.share);
             this.toggleOrientationButton = rootView.findViewById(R.id.toggleOrientation);
             this.switchBackgroundButton = rootView.findViewById(R.id.switchBackground);
             this.switchPopupButton = rootView.findViewById(R.id.switchPopup);
@@ -483,8 +515,10 @@ public final class MainVideoPlayer extends AppCompatActivity
             playPauseButton.setOnClickListener(this);
             playPreviousButton.setOnClickListener(this);
             playNextButton.setOnClickListener(this);
+            closeButton.setOnClickListener(this);
 
             moreOptionsButton.setOnClickListener(this);
+            shareButton.setOnClickListener(this);
             toggleOrientationButton.setOnClickListener(this);
             switchBackgroundButton.setOnClickListener(this);
             switchPopupButton.setOnClickListener(this);
@@ -579,7 +613,8 @@ public final class MainVideoPlayer extends AppCompatActivity
                     this.getPlaybackSpeed(),
                     this.getPlaybackPitch(),
                     this.getPlaybackSkipSilence(),
-                    this.getPlaybackQuality()
+                    this.getPlaybackQuality(),
+                    false
             );
             context.startService(intent);
 
@@ -601,7 +636,8 @@ public final class MainVideoPlayer extends AppCompatActivity
                     this.getPlaybackSpeed(),
                     this.getPlaybackPitch(),
                     this.getPlaybackSkipSilence(),
-                    this.getPlaybackQuality()
+                    this.getPlaybackQuality(),
+                    false
             );
             context.startService(intent);
 
@@ -635,6 +671,9 @@ public final class MainVideoPlayer extends AppCompatActivity
             } else if (v.getId() == moreOptionsButton.getId()) {
                 onMoreOptionsClicked();
 
+            } else if (v.getId() == shareButton.getId()) {
+                onShareClicked();
+
             } else if (v.getId() == toggleOrientationButton.getId()) {
                 onScreenRotationClicked();
 
@@ -644,6 +683,9 @@ public final class MainVideoPlayer extends AppCompatActivity
             } else if (v.getId() == switchBackgroundButton.getId()) {
                 onPlayBackgroundButtonClicked();
 
+            } else if (v.getId() == closeButton.getId()) {
+                onPlaybackShutdown();
+                return;
             }
 
             if (getCurrentState() != STATE_COMPLETED) {
@@ -688,6 +730,13 @@ public final class MainVideoPlayer extends AppCompatActivity
             showControls(DEFAULT_CONTROLS_DURATION);
         }
 
+        private void onShareClicked() {
+            // share video at the current time (youtube.com/watch?v=ID&t=SECONDS)
+            ShareUtils.shareUrl(MainVideoPlayer.this,
+                    playerImpl.getVideoTitle(),
+                    playerImpl.getVideoUrl() + "&t=" + String.valueOf(playerImpl.getPlaybackSeekBar().getProgress()/1000));
+        }
+
         private void onScreenRotationClicked() {
             if (DEBUG) Log.d(TAG, "onScreenRotationClicked() called");
             toggleOrientation();
@@ -770,6 +819,7 @@ public final class MainVideoPlayer extends AppCompatActivity
             super.onBlocked();
             playPauseButton.setImageResource(R.drawable.ic_pause_white);
             animatePlayButtons(false, 100);
+            animateView(closeButton, false, DEFAULT_CONTROLS_DURATION);
             getRootView().setKeepScreenOn(true);
         }
 
@@ -785,6 +835,7 @@ public final class MainVideoPlayer extends AppCompatActivity
             animateView(playPauseButton, AnimationUtils.Type.SCALE_AND_ALPHA, false, 80, 0, () -> {
                 playPauseButton.setImageResource(R.drawable.ic_pause_white);
                 animatePlayButtons(true, 200);
+                animateView(closeButton, false, DEFAULT_CONTROLS_DURATION);
             });
 
             getRootView().setKeepScreenOn(true);
@@ -796,6 +847,7 @@ public final class MainVideoPlayer extends AppCompatActivity
             animateView(playPauseButton, AnimationUtils.Type.SCALE_AND_ALPHA, false, 80, 0, () -> {
                 playPauseButton.setImageResource(R.drawable.ic_play_arrow_white);
                 animatePlayButtons(true, 200);
+                animateView(closeButton, false, DEFAULT_CONTROLS_DURATION);
             });
 
             showSystemUi();
@@ -815,8 +867,8 @@ public final class MainVideoPlayer extends AppCompatActivity
             animateView(playPauseButton, AnimationUtils.Type.SCALE_AND_ALPHA, false, 0, 0, () -> {
                 playPauseButton.setImageResource(R.drawable.ic_replay_white);
                 animatePlayButtons(true, DEFAULT_CONTROLS_DURATION);
+                animateView(closeButton, true, DEFAULT_CONTROLS_DURATION);
             });
-
             getRootView().setKeepScreenOn(false);
             super.onCompleted();
         }
@@ -851,8 +903,8 @@ public final class MainVideoPlayer extends AppCompatActivity
             if (DEBUG) Log.d(TAG, "hideControls() called with: delay = [" + delay + "]");
             getControlsVisibilityHandler().removeCallbacksAndMessages(null);
             getControlsVisibilityHandler().postDelayed(() ->
-                    animateView(getControlsRoot(), false, duration, 0,
-                            MainVideoPlayer.this::hideSystemUi),
+                            animateView(getControlsRoot(), false, duration, 0,
+                                    MainVideoPlayer.this::hideSystemUi),
                     /*delayMillis=*/delay
             );
         }
@@ -1056,9 +1108,9 @@ public final class MainVideoPlayer extends AppCompatActivity
 
                 final int resId =
                         currentProgressPercent <= 0 ? R.drawable.ic_volume_off_white_72dp
-                        : currentProgressPercent < 0.25 ? R.drawable.ic_volume_mute_white_72dp
-                        : currentProgressPercent < 0.75 ? R.drawable.ic_volume_down_white_72dp
-                        : R.drawable.ic_volume_up_white_72dp;
+                                : currentProgressPercent < 0.25 ? R.drawable.ic_volume_mute_white_72dp
+                                : currentProgressPercent < 0.75 ? R.drawable.ic_volume_down_white_72dp
+                                : R.drawable.ic_volume_up_white_72dp;
 
                 playerImpl.getVolumeImageView().setImageDrawable(
                         AppCompatResources.getDrawable(getApplicationContext(), resId)
@@ -1082,8 +1134,8 @@ public final class MainVideoPlayer extends AppCompatActivity
 
                 final int resId =
                         currentProgressPercent < 0.25 ? R.drawable.ic_brightness_low_white_72dp
-                        : currentProgressPercent < 0.75 ? R.drawable.ic_brightness_medium_white_72dp
-                        : R.drawable.ic_brightness_high_white_72dp;
+                                : currentProgressPercent < 0.75 ? R.drawable.ic_brightness_medium_white_72dp
+                                : R.drawable.ic_brightness_high_white_72dp;
 
                 playerImpl.getBrightnessImageView().setImageDrawable(
                         AppCompatResources.getDrawable(getApplicationContext(), resId)

app/src/main/java/org/schabi/newpipe/player/PopupVideoPlayer.java

@@ -181,6 +181,11 @@ public final class PopupVideoPlayer extends Service {
         closePopup();
     }
 
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(AudioServiceLeakFix.preventLeakOf(base));
+    }
+
     @Override
     public IBinder onBind(Intent intent) {
         return mBinder;
@@ -320,6 +325,7 @@ public final class PopupVideoPlayer extends Service {
         isPopupClosing = true;
 
         if (playerImpl != null) {
+            playerImpl.savePlaybackState();
             if (playerImpl.getRootView() != null) {
                 windowManager.removeView(playerImpl.getRootView());
             }
@@ -560,7 +566,8 @@ public final class PopupVideoPlayer extends Service {
                     this.getPlaybackSpeed(),
                     this.getPlaybackPitch(),
                     this.getPlaybackSkipSilence(),
-                    this.getPlaybackQuality()
+                    this.getPlaybackQuality(),
+                    false
             );
             intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             context.startActivity(intent);
@@ -626,6 +633,7 @@ public final class PopupVideoPlayer extends Service {
         @Override
         public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
             super.onLoadingComplete(imageUri, view, loadedImage);
+            if (playerImpl == null) return;
             // rebuild notification here since remote view does not release bitmaps,
             // causing memory leaks
             resetNotification();

app/src/main/java/org/schabi/newpipe/player/ServicePlayerActivity.java

@@ -3,7 +3,6 @@ package org.schabi.newpipe.player;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.ServiceConnection;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.provider.Settings;
@@ -189,7 +188,8 @@ public abstract class ServicePlayerActivity extends AppCompatActivity
                 this.player.getPlaybackSpeed(),
                 this.player.getPlaybackPitch(),
                 this.player.getPlaybackSkipSilence(),
-                null
+                null,
+                false
         ).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     }
 
@@ -653,11 +653,7 @@ public abstract class ServicePlayerActivity extends AppCompatActivity
         }
 
         final int shuffleAlpha = shuffled ? 255 : 77;
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-            shuffleButton.setImageAlpha(shuffleAlpha);
-        } else {
-            shuffleButton.setAlpha(shuffleAlpha);
-        }
+        shuffleButton.setImageAlpha(shuffleAlpha);
     }
 
     private void onPlaybackParameterChanged(final PlaybackParameters parameters) {

app/src/main/java/org/schabi/newpipe/player/VideoPlayer.java

@@ -212,7 +212,6 @@ public abstract class VideoPlayer extends BasePlayer
 
     @Override
     public void initListeners() {
-        super.initListeners();
         playbackSeekBar.setOnSeekBarChangeListener(this);
         playbackSpeedTextView.setOnClickListener(this);
         qualityTextView.setOnClickListener(this);
@@ -316,7 +315,6 @@ public abstract class VideoPlayer extends BasePlayer
         captionPopupMenu.setOnDismissListener(this);
     }
 
-
     private void updateStreamRelatedViews() {
         if (getCurrentMetadata() == null) return;
 
@@ -510,11 +508,11 @@ public abstract class VideoPlayer extends BasePlayer
 
         // Normalize mismatching language strings
         final String preferredLanguage = trackSelector.getPreferredTextLanguage();
-
         // Build UI
         buildCaptionMenu(availableLanguages);
         if (trackSelector.getParameters().getRendererDisabled(textRenderer) ||
-                preferredLanguage == null || !availableLanguages.contains(preferredLanguage)) {
+                preferredLanguage == null || (!availableLanguages.contains(preferredLanguage)
+                && !containsCaseInsensitive(availableLanguages, preferredLanguage))) {
             captionTextView.setText(R.string.caption_none);
         } else {
             captionTextView.setText(preferredLanguage);
@@ -522,6 +520,15 @@ public abstract class VideoPlayer extends BasePlayer
         captionTextView.setVisibility(availableLanguages.isEmpty() ? View.GONE : View.VISIBLE);
     }
 
+    // workaround to match normalized captions like english to English or deutsch to Deutsch
+    private static boolean containsCaseInsensitive(List<String> list, String toFind) {
+        for(String i : list){
+            if(i.equalsIgnoreCase(toFind))
+                return true;
+        }
+        return false;
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // General Player
     //////////////////////////////////////////////////////////////////////////*/
@@ -535,6 +542,11 @@ public abstract class VideoPlayer extends BasePlayer
         playbackSpeedTextView.setText(formatSpeed(getPlaybackSpeed()));
 
         super.onPrepared(playWhenReady);
+
+        if (simpleExoPlayer.getCurrentPosition() != 0 && !isControlsVisible()) {
+            controlsVisibilityHandler.removeCallbacksAndMessages(null);
+            controlsVisibilityHandler.postDelayed(this::showControlsThenHide, DEFAULT_CONTROLS_DURATION);
+        }
     }
 
     @Override

app/src/main/java/org/schabi/newpipe/player/helper/AudioReactor.java

@@ -12,13 +12,11 @@ import android.os.Build;
 import android.support.annotation.NonNull;
 import android.util.Log;
 
-import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.SimpleExoPlayer;
-import com.google.android.exoplayer2.audio.AudioRendererEventListener;
-import com.google.android.exoplayer2.decoder.DecoderCounters;
+import com.google.android.exoplayer2.analytics.AnalyticsListener;
 
 public class AudioReactor implements AudioManager.OnAudioFocusChangeListener,
-        AudioRendererEventListener {
+        AnalyticsListener {
 
     private static final String TAG = "AudioFocusReactor";
 
@@ -42,7 +40,7 @@ public class AudioReactor implements AudioManager.OnAudioFocusChangeListener,
         this.player = player;
         this.context = context;
         this.audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
-        player.addAudioDebugListener(this);
+        player.addAnalyticsListener(this);
 
         if (SHOULD_BUILD_FOCUS_REQUEST) {
             request = new AudioFocusRequest.Builder(FOCUS_GAIN_TYPE)
@@ -57,7 +55,7 @@ public class AudioReactor implements AudioManager.OnAudioFocusChangeListener,
 
     public void dispose() {
         abandonAudioFocus();
-        player.removeAudioDebugListener(this);
+        player.removeAnalyticsListener(this);
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -131,7 +129,7 @@ public class AudioReactor implements AudioManager.OnAudioFocusChangeListener,
     private void onAudioFocusLossCanDuck() {
         Log.d(TAG, "onAudioFocusLossCanDuck() called");
         // Set the volume to 1/10 on ducking
-        animateAudio(player.getVolume(), DUCK_AUDIO_TO);
+        player.setVolume(DUCK_AUDIO_TO);
     }
 
     private void animateAudio(final float from, final float to) {
@@ -164,29 +162,12 @@ public class AudioReactor implements AudioManager.OnAudioFocusChangeListener,
     //////////////////////////////////////////////////////////////////////////*/
 
     @Override
-    public void onAudioSessionId(int i) {
+    public void onAudioSessionId(EventTime eventTime, int audioSessionId) {
         if (!PlayerHelper.isUsingDSP(context)) return;
 
         final Intent intent = new Intent(AudioEffect.ACTION_OPEN_AUDIO_EFFECT_CONTROL_SESSION);
-        intent.putExtra(AudioEffect.EXTRA_AUDIO_SESSION, i);
+        intent.putExtra(AudioEffect.EXTRA_AUDIO_SESSION, audioSessionId);
         intent.putExtra(AudioEffect.EXTRA_PACKAGE_NAME, context.getPackageName());
         context.sendBroadcast(intent);
     }
-
-    @Override
-    public void onAudioEnabled(DecoderCounters decoderCounters) {}
-
-    @Override
-    public void onAudioDecoderInitialized(String s, long l, long l1) {}
-
-    @Override
-    public void onAudioInputFormatChanged(Format format) {}
-
-    @Override
-    public void onAudioSinkUnderrun(int bufferSize,
-                                    long bufferSizeMs,
-                                    long elapsedSinceLastFeedMs) {}
-
-    @Override
-    public void onAudioDisabled(DecoderCounters decoderCounters) {}
 }

app/src/main/java/org/schabi/newpipe/player/helper/CacheFactory.java

@@ -33,14 +33,14 @@ import java.io.File;
 
     public CacheFactory(@NonNull final Context context,
                         @NonNull final String userAgent,
-                        @NonNull final TransferListener<? super DataSource> transferListener) {
+                        @NonNull final TransferListener transferListener) {
         this(context, userAgent, transferListener, PlayerHelper.getPreferredCacheSize(context),
                 PlayerHelper.getPreferredFileSize(context));
     }
 
     private CacheFactory(@NonNull final Context context,
                          @NonNull final String userAgent,
-                         @NonNull final TransferListener<? super DataSource> transferListener,
+                         @NonNull final TransferListener transferListener,
                          final long maxCacheSize,
                          final long maxFileSize) {
         this.maxFileSize = maxFileSize;

app/src/main/java/org/schabi/newpipe/player/helper/LoadController.java

@@ -2,17 +2,12 @@ package org.schabi.newpipe.player.helper;
 
 import android.content.Context;
 
-import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.DefaultLoadControl;
 import com.google.android.exoplayer2.LoadControl;
 import com.google.android.exoplayer2.Renderer;
 import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.trackselection.TrackSelectionArray;
 import com.google.android.exoplayer2.upstream.Allocator;
-import com.google.android.exoplayer2.upstream.DefaultAllocator;
-
-import static com.google.android.exoplayer2.DefaultLoadControl.DEFAULT_PRIORITIZE_TIME_OVER_SIZE_THRESHOLDS;
-import static com.google.android.exoplayer2.DefaultLoadControl.DEFAULT_TARGET_BUFFER_BYTES;
 
 public class LoadController implements LoadControl {
 
@@ -36,15 +31,10 @@ public class LoadController implements LoadControl {
                            final int optimalPlaybackBufferMs) {
         this.initialPlaybackBufferUs = initialPlaybackBufferMs * 1000;
 
-        final DefaultAllocator allocator = new DefaultAllocator(true,
-                C.DEFAULT_BUFFER_SEGMENT_SIZE);
-
-        internalLoadControl = new DefaultLoadControl(allocator,
-                /*minBufferMs=*/minimumPlaybackbufferMs,
-                /*maxBufferMs=*/optimalPlaybackBufferMs,
-                /*bufferForPlaybackMs=*/initialPlaybackBufferMs,
-                /*bufferForPlaybackAfterRebufferMs=*/initialPlaybackBufferMs,
-                DEFAULT_TARGET_BUFFER_BYTES, DEFAULT_PRIORITIZE_TIME_OVER_SIZE_THRESHOLDS);
+        DefaultLoadControl.Builder builder = new DefaultLoadControl.Builder();
+        builder.setBufferDurationsMs(minimumPlaybackbufferMs, optimalPlaybackBufferMs,
+                initialPlaybackBufferMs, initialPlaybackBufferMs);
+        internalLoadControl = builder.createDefaultLoadControl();
     }
 
     /*//////////////////////////////////////////////////////////////////////////

app/src/main/java/org/schabi/newpipe/player/helper/PlayerDataSource.java

@@ -12,6 +12,7 @@ import com.google.android.exoplayer2.source.smoothstreaming.DefaultSsChunkSource
 import com.google.android.exoplayer2.source.smoothstreaming.SsMediaSource;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory;
+import com.google.android.exoplayer2.upstream.DefaultLoadErrorHandlingPolicy;
 import com.google.android.exoplayer2.upstream.TransferListener;
 
 public class PlayerDataSource {
@@ -24,7 +25,7 @@ public class PlayerDataSource {
 
     public PlayerDataSource(@NonNull final Context context,
                             @NonNull final String userAgent,
-                            @NonNull final TransferListener<? super DataSource> transferListener) {
+                            @NonNull final TransferListener transferListener) {
         cacheDataSourceFactory = new CacheFactory(context, userAgent, transferListener);
         cachelessDataSourceFactory = new DefaultDataSourceFactory(context, userAgent, transferListener);
     }
@@ -32,21 +33,21 @@ public class PlayerDataSource {
     public SsMediaSource.Factory getLiveSsMediaSourceFactory() {
         return new SsMediaSource.Factory(new DefaultSsChunkSource.Factory(
                 cachelessDataSourceFactory), cachelessDataSourceFactory)
-                .setMinLoadableRetryCount(MANIFEST_MINIMUM_RETRY)
+                .setLoadErrorHandlingPolicy(new DefaultLoadErrorHandlingPolicy(MANIFEST_MINIMUM_RETRY))
                 .setLivePresentationDelayMs(LIVE_STREAM_EDGE_GAP_MILLIS);
     }
 
     public HlsMediaSource.Factory getLiveHlsMediaSourceFactory() {
         return new HlsMediaSource.Factory(cachelessDataSourceFactory)
                 .setAllowChunklessPreparation(true)
-                .setMinLoadableRetryCount(MANIFEST_MINIMUM_RETRY);
+                .setLoadErrorHandlingPolicy(new DefaultLoadErrorHandlingPolicy(MANIFEST_MINIMUM_RETRY));
     }
 
     public DashMediaSource.Factory getLiveDashMediaSourceFactory() {
         return new DashMediaSource.Factory(new DefaultDashChunkSource.Factory(
                 cachelessDataSourceFactory), cachelessDataSourceFactory)
-                .setMinLoadableRetryCount(MANIFEST_MINIMUM_RETRY)
-                .setLivePresentationDelayMs(LIVE_STREAM_EDGE_GAP_MILLIS);
+                .setLoadErrorHandlingPolicy(new DefaultLoadErrorHandlingPolicy(MANIFEST_MINIMUM_RETRY))
+                .setLivePresentationDelayMs(LIVE_STREAM_EDGE_GAP_MILLIS, true);
     }
 
     public SsMediaSource.Factory getSsMediaSourceFactory() {
@@ -65,7 +66,7 @@ public class PlayerDataSource {
 
     public ExtractorMediaSource.Factory getExtractorMediaSourceFactory() {
         return new ExtractorMediaSource.Factory(cacheDataSourceFactory)
-                .setMinLoadableRetryCount(EXTRACTOR_MINIMUM_RETRY);
+                .setLoadErrorHandlingPolicy(new DefaultLoadErrorHandlingPolicy(EXTRACTOR_MINIMUM_RETRY));
     }
 
     public ExtractorMediaSource.Factory getExtractorMediaSourceFactory(@NonNull final String key) {

app/src/main/java/org/schabi/newpipe/player/helper/PlayerHelper.java

@@ -14,7 +14,6 @@ import com.google.android.exoplayer2.text.CaptionStyleCompat;
 import com.google.android.exoplayer2.trackselection.AdaptiveTrackSelection;
 import com.google.android.exoplayer2.trackselection.TrackSelection;
 import com.google.android.exoplayer2.ui.AspectRatioFrameLayout;
-import com.google.android.exoplayer2.upstream.BandwidthMeter;
 import com.google.android.exoplayer2.util.MimeTypes;
 
 import org.schabi.newpipe.R;
@@ -45,7 +44,9 @@ import static com.google.android.exoplayer2.ui.AspectRatioFrameLayout.RESIZE_MOD
 import static com.google.android.exoplayer2.ui.AspectRatioFrameLayout.RESIZE_MODE_FIT;
 import static com.google.android.exoplayer2.ui.AspectRatioFrameLayout.RESIZE_MODE_ZOOM;
 import static java.lang.annotation.RetentionPolicy.SOURCE;
-import static org.schabi.newpipe.player.helper.PlayerHelper.MinimizeMode.*;
+import static org.schabi.newpipe.player.helper.PlayerHelper.MinimizeMode.MINIMIZE_ON_EXIT_MODE_BACKGROUND;
+import static org.schabi.newpipe.player.helper.PlayerHelper.MinimizeMode.MINIMIZE_ON_EXIT_MODE_NONE;
+import static org.schabi.newpipe.player.helper.PlayerHelper.MinimizeMode.MINIMIZE_ON_EXIT_MODE_POPUP;
 
 public class PlayerHelper {
     private PlayerHelper() {}
@@ -68,10 +69,10 @@ public class PlayerHelper {
     ////////////////////////////////////////////////////////////////////////////
 
     public static String getTimeString(int milliSeconds) {
-        long seconds = (milliSeconds % 60000L) / 1000L;
-        long minutes = (milliSeconds % 3600000L) / 60000L;
-        long hours = (milliSeconds % 86400000L) / 3600000L;
-        long days = (milliSeconds % (86400000L * 7L)) / 86400000L;
+        int seconds = (milliSeconds % 60000) / 1000;
+        int minutes = (milliSeconds % 3600000) / 60000;
+        int hours = (milliSeconds % 86400000) / 3600000;
+        int days = (milliSeconds % (86400000 * 7)) / 86400000;
 
         stringBuilder.setLength(0);
         return days > 0 ? stringFormatter.format("%d:%02d:%02d:%02d", days, hours, minutes, seconds).toString()
@@ -238,9 +239,8 @@ public class PlayerHelper {
         return 60000;
     }
 
-    public static TrackSelection.Factory getQualitySelector(@NonNull final Context context,
-                                                            @NonNull final BandwidthMeter meter) {
-        return new AdaptiveTrackSelection.Factory(meter,
+    public static TrackSelection.Factory getQualitySelector(@NonNull final Context context) {
+        return new AdaptiveTrackSelection.Factory(
                 /*bufferDurationRequiredForQualityIncrease=*/1000,
                 AdaptiveTrackSelection.DEFAULT_MAX_DURATION_FOR_QUALITY_DECREASE_MS,
                 AdaptiveTrackSelection.DEFAULT_MIN_DURATION_TO_RETAIN_AFTER_DISCARD_MS,

app/src/main/java/org/schabi/newpipe/player/mediasource/FailedMediaSource.java

@@ -1,12 +1,13 @@
 package org.schabi.newpipe.player.mediasource;
 
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.util.Log;
 
-import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.source.BaseMediaSource;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.upstream.Allocator;
+import com.google.android.exoplayer2.upstream.TransferListener;
 
 import org.schabi.newpipe.player.playqueue.PlayQueueItem;
 
@@ -79,7 +80,7 @@ public class FailedMediaSource extends BaseMediaSource implements ManagedMediaSo
     }
 
     @Override
-    public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator) {
+    public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator, long startPositionUs) {
         return null;
     }
 
@@ -88,7 +89,7 @@ public class FailedMediaSource extends BaseMediaSource implements ManagedMediaSo
 
 
     @Override
-    protected void prepareSourceInternal(ExoPlayer player, boolean isTopLevelSource) {
+    protected void prepareSourceInternal(@Nullable TransferListener mediaTransferListener) {
         Log.e(TAG, "Loading failed source: ", error);
     }
 

app/src/main/java/org/schabi/newpipe/player/mediasource/LoadedMediaSource.java

@@ -2,12 +2,13 @@ package org.schabi.newpipe.player.mediasource;
 
 import android.os.Handler;
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 
-import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.MediaSourceEventListener;
 import com.google.android.exoplayer2.upstream.Allocator;
+import com.google.android.exoplayer2.upstream.TransferListener;
 
 import org.schabi.newpipe.player.playqueue.PlayQueueItem;
 
@@ -36,9 +37,8 @@ public class LoadedMediaSource implements ManagedMediaSource {
     }
 
     @Override
-    public void prepareSource(ExoPlayer player, boolean isTopLevelSource,
-                              SourceInfoRefreshListener listener) {
-        source.prepareSource(player, isTopLevelSource, listener);
+    public void prepareSource(SourceInfoRefreshListener listener, @Nullable TransferListener mediaTransferListener) {
+        source.prepareSource(listener, mediaTransferListener);
     }
 
     @Override
@@ -47,8 +47,8 @@ public class LoadedMediaSource implements ManagedMediaSource {
     }
 
     @Override
-    public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator) {
-        return source.createPeriod(id, allocator);
+    public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator, long startPositionUs) {
+        return source.createPeriod(id, allocator, startPositionUs);
     }
 
     @Override

app/src/main/java/org/schabi/newpipe/player/mediasource/ManagedMediaSourcePlaylist.java

@@ -1,5 +1,5 @@
 package org.schabi.newpipe.player.mediasource;
-
+import android.os.Handler;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 
@@ -86,21 +86,22 @@ public class ManagedMediaSourcePlaylist {
     /**
      * Invalidates the {@link ManagedMediaSource} at the given index by replacing it
      * with a {@link PlaceholderMediaSource}.
-     * @see #update(int, ManagedMediaSource, Runnable)
+     * @see #update(int, ManagedMediaSource, Handler, Runnable)
      * */
     public synchronized void invalidate(final int index,
+                                        @Nullable final Handler handler,
                                         @Nullable final Runnable finalizingAction) {
         if (get(index) instanceof PlaceholderMediaSource) return;
-        update(index, new PlaceholderMediaSource(), finalizingAction);
+        update(index, new PlaceholderMediaSource(), handler, finalizingAction);
     }
 
     /**
      * Updates the {@link ManagedMediaSource} in {@link ConcatenatingMediaSource}
      * at the given index with a given {@link ManagedMediaSource}.
-     * @see #update(int, ManagedMediaSource, Runnable)
+     * @see #update(int, ManagedMediaSource, Handler, Runnable)
      * */
     public synchronized void update(final int index, @NonNull final ManagedMediaSource source) {
-        update(index, source, /*doNothing=*/null);
+        update(index, source, null, /*doNothing=*/null);
     }
 
     /**
@@ -108,9 +109,10 @@ public class ManagedMediaSourcePlaylist {
      * at the given index with a given {@link ManagedMediaSource}. If the index is out of bound,
      * then the replacement is ignored.
      * @see ConcatenatingMediaSource#addMediaSource
-     * @see ConcatenatingMediaSource#removeMediaSource(int, Runnable)
+     * @see ConcatenatingMediaSource#removeMediaSource(int, Handler, Runnable)
      * */
     public synchronized void update(final int index, @NonNull final ManagedMediaSource source,
+                                    @Nullable final Handler handler,
                                     @Nullable final Runnable finalizingAction) {
         if (index < 0 || index >= internalSource.getSize()) return;
 
@@ -126,6 +128,6 @@ public class ManagedMediaSourcePlaylist {
 
         // Because of the above race condition, it is thus only safe to synchronize the player
         // in the finalizing action AFTER the removal is complete and the timeline has changed.
-        internalSource.removeMediaSource(index, finalizingAction);
+        internalSource.removeMediaSource(index, handler, finalizingAction);
     }
 }

app/src/main/java/org/schabi/newpipe/player/mediasource/PlaceholderMediaSource.java

@@ -1,20 +1,21 @@
 package org.schabi.newpipe.player.mediasource;
 
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 
-import com.google.android.exoplayer2.ExoPlayer;
 import com.google.android.exoplayer2.source.BaseMediaSource;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.upstream.Allocator;
+import com.google.android.exoplayer2.upstream.TransferListener;
 
 import org.schabi.newpipe.player.playqueue.PlayQueueItem;
 
 public class PlaceholderMediaSource extends BaseMediaSource implements ManagedMediaSource {
     // Do nothing, so this will stall the playback
     @Override public void maybeThrowSourceInfoRefreshError() {}
-    @Override public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator) { return null; }
+    @Override public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator, long startPositionUs) { return null; }
     @Override public void releasePeriod(MediaPeriod mediaPeriod) {}
-    @Override protected void prepareSourceInternal(ExoPlayer player, boolean isTopLevelSource) {}
+    @Override protected void prepareSourceInternal(@Nullable TransferListener mediaTransferListener) {}
     @Override protected void releaseSourceInternal() {}
 
     @Override

app/src/main/java/org/schabi/newpipe/player/playback/BasePlayerMediaSession.java

@@ -1,7 +1,9 @@
 package org.schabi.newpipe.player.playback;
 
 import android.net.Uri;
+import android.os.Bundle;
 import android.support.v4.media.MediaDescriptionCompat;
+import android.support.v4.media.MediaMetadataCompat;
 
 import org.schabi.newpipe.player.BasePlayer;
 import org.schabi.newpipe.player.mediasession.MediaSessionCallback;
@@ -54,6 +56,15 @@ public class BasePlayerMediaSession implements MediaSessionCallback {
                 .setTitle(item.getTitle())
                 .setSubtitle(item.getUploader());
 
+        // set additional metadata for A2DP/AVRCP
+        Bundle additionalMetadata = new Bundle();
+        additionalMetadata.putString(MediaMetadataCompat.METADATA_KEY_TITLE, item.getTitle());
+        additionalMetadata.putString(MediaMetadataCompat.METADATA_KEY_ARTIST, item.getUploader());
+        additionalMetadata.putLong(MediaMetadataCompat.METADATA_KEY_DURATION, item.getDuration() * 1000);
+        additionalMetadata.putLong(MediaMetadataCompat.METADATA_KEY_TRACK_NUMBER, index + 1);
+        additionalMetadata.putLong(MediaMetadataCompat.METADATA_KEY_NUM_TRACKS, player.getPlayQueue().size());
+        descriptionBuilder.setExtras(additionalMetadata);
+
         final Uri thumbnailUri = Uri.parse(item.getThumbnailUrl());
         if (thumbnailUri != null) descriptionBuilder.setIconUri(thumbnailUri);
 

app/src/main/java/org/schabi/newpipe/player/playback/CustomTrackSelector.java

@@ -2,6 +2,7 @@ package org.schabi.newpipe.player.playback;
 
 import android.support.annotation.NonNull;
 import android.text.TextUtils;
+import android.util.Pair;
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
@@ -17,7 +18,7 @@ import com.google.android.exoplayer2.util.Assertions;
  * is mostly a copy-paste from {@link DefaultTrackSelector}.
  *
  * This is a hack and should be removed once ExoPlayer fixes language normalization to accept
- * a broader set of languages. 
+ * a broader set of languages.
  * */
 public class CustomTrackSelector extends DefaultTrackSelector {
     private static final int WITHIN_RENDERER_CAPABILITIES_BONUS = 1000;
@@ -52,8 +53,8 @@ public class CustomTrackSelector extends DefaultTrackSelector {
 
     /** @see DefaultTrackSelector#selectTextTrack(TrackGroupArray, int[][], Parameters) */
     @Override
-    protected TrackSelection selectTextTrack(TrackGroupArray groups, int[][] formatSupport,
-                                             Parameters params) {
+    protected Pair<TrackSelection, Integer> selectTextTrack(TrackGroupArray groups, int[][] formatSupport,
+                                                            Parameters params) {
         TrackGroup selectedGroup = null;
         int selectedTrackIndex = 0;
         int selectedTrackScore = 0;
@@ -106,7 +107,9 @@ public class CustomTrackSelector extends DefaultTrackSelector {
                 }
             }
         }
-        return selectedGroup == null ? null
-                : new FixedTrackSelection(selectedGroup, selectedTrackIndex);
+        return selectedGroup == null
+                ? null
+                : Pair.create(
+                new FixedTrackSelection(selectedGroup, selectedTrackIndex), selectedTrackScore);
     }
-}
+}

app/src/main/java/org/schabi/newpipe/player/playback/MediaSourceManager.java

@@ -1,5 +1,5 @@
 package org.schabi.newpipe.player.playback;
-
+import android.os.Handler;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.util.ArraySet;
@@ -103,6 +103,8 @@ public class MediaSourceManager {
 
     @NonNull private ManagedMediaSourcePlaylist playlist;
 
+    private Handler removeMediaSourceHandler = new Handler();
+
     public MediaSourceManager(@NonNull final PlaybackListener listener,
                               @NonNull final PlayQueue playQueue) {
         this(listener, playQueue, /*loadDebounceMillis=*/400L,
@@ -156,7 +158,7 @@ public class MediaSourceManager {
      * Dispose the manager and releases all message buses and loaders.
      * */
     public void dispose() {
-        if (DEBUG) Log.d(TAG, "dispose() called.");
+        if (DEBUG) Log.d(TAG, "close() called.");
 
         debouncedSignal.onComplete();
         debouncedLoader.dispose();
@@ -395,7 +397,7 @@ public class MediaSourceManager {
         if (isCorrectionNeeded(item)) {
             if (DEBUG) Log.d(TAG, "MediaSource - Updating index=[" + itemIndex + "] with " +
                     "title=[" + item.getTitle() + "] at url=[" + item.getUrl() + "]");
-            playlist.update(itemIndex, mediaSource, this::maybeSynchronizePlayer);
+            playlist.update(itemIndex, mediaSource, removeMediaSourceHandler, this::maybeSynchronizePlayer);
         }
     }
 
@@ -441,7 +443,7 @@ public class MediaSourceManager {
 
         if (DEBUG) Log.d(TAG, "MediaSource - Reloading currently playing, " +
                 "index=[" + currentIndex + "], item=[" + currentItem.getTitle() + "]");
-        playlist.invalidate(currentIndex, this::loadImmediate);
+        playlist.invalidate(currentIndex, removeMediaSourceHandler, this::loadImmediate);
     }
 
     private void maybeClearLoaders() {

app/src/main/java/org/schabi/newpipe/player/playqueue/SinglePlayQueue.java

@@ -16,6 +16,11 @@ public final class SinglePlayQueue extends PlayQueue {
         super(0, Collections.singletonList(new PlayQueueItem(info)));
     }
 
+    public SinglePlayQueue(final StreamInfo info, final long startPosition) {
+        super(0, Collections.singletonList(new PlayQueueItem(info)));
+        getItem().setRecoveryPosition(startPosition);
+    }
+
     public SinglePlayQueue(final List<StreamInfoItem> items, final int index) {
         super(index, playQueueItemsOf(items));
     }

app/src/main/java/org/schabi/newpipe/player/resolver/VideoPlaybackResolver.java

@@ -13,6 +13,7 @@ import org.schabi.newpipe.extractor.MediaFormat;
 import org.schabi.newpipe.extractor.stream.SubtitlesStream;
 import org.schabi.newpipe.extractor.stream.AudioStream;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
+import org.schabi.newpipe.extractor.stream.SubtitlesStream;
 import org.schabi.newpipe.extractor.stream.VideoStream;
 import org.schabi.newpipe.player.helper.PlayerDataSource;
 import org.schabi.newpipe.player.helper.PlayerHelper;
@@ -93,15 +94,17 @@ public class VideoPlaybackResolver implements PlaybackResolver {
         // Below are auxiliary media sources
 
         // Create subtitle sources
-        for (final SubtitlesStream subtitle : info.getSubtitles()) {
-            final String mimeType = PlayerHelper.subtitleMimeTypesOf(subtitle.getFormat());
-            if (mimeType == null) continue;
+        if(info.getSubtitles() != null) {
+            for (final SubtitlesStream subtitle : info.getSubtitles()) {
+                final String mimeType = PlayerHelper.subtitleMimeTypesOf(subtitle.getFormat());
+                if (mimeType == null) continue;
 
-            final Format textFormat = Format.createTextSampleFormat(null, mimeType,
-                    SELECTION_FLAG_AUTOSELECT, PlayerHelper.captionLanguageOf(context, subtitle));
-            final MediaSource textSource = dataSource.getSampleMediaSourceFactory()
-                    .createMediaSource(Uri.parse(subtitle.getURL()), textFormat, TIME_UNSET);
-            mediaSources.add(textSource);
+                final Format textFormat = Format.createTextSampleFormat(null, mimeType,
+                        SELECTION_FLAG_AUTOSELECT, PlayerHelper.captionLanguageOf(context, subtitle));
+                final MediaSource textSource = dataSource.getSampleMediaSourceFactory()
+                        .createMediaSource(Uri.parse(subtitle.getURL()), textFormat, TIME_UNSET);
+                mediaSources.add(textSource);
+            }
         }
 
         if (mediaSources.size() == 1) {

app/src/main/java/org/schabi/newpipe/report/UserAction.java

@@ -15,8 +15,11 @@ public enum UserAction {
     REQUESTED_CHANNEL("requested channel"),
     REQUESTED_PLAYLIST("requested playlist"),
     REQUESTED_KIOSK("requested kiosk"),
+    REQUESTED_COMMENTS("requested comments"),
     DELETE_FROM_HISTORY("delete from history"),
-    PLAY_STREAM("Play stream");
+    PLAY_STREAM("Play stream"),
+    DOWNLOAD_POSTPROCESSING("download post-processing"),
+    DOWNLOAD_FAILED("download failed");
 
 
     private final String message;

app/src/main/java/org/schabi/newpipe/settings/ContentSettingsFragment.java

@@ -274,7 +274,7 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
                 else if (v instanceof String)
                     prefEdit.putString(key, ((String) v));
             }
-            prefEdit.apply();
+            prefEdit.commit();
         } catch (FileNotFoundException e) {
             e.printStackTrace();
         } catch (IOException e) {

app/src/main/java/org/schabi/newpipe/settings/DownloadSettingsFragment.java

@@ -1,30 +1,76 @@
 package org.schabi.newpipe.settings;
 
 import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.ContentResolver;
+import android.content.Context;
 import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.support.annotation.StringRes;
 import android.support.v7.preference.Preference;
 import android.util.Log;
+import android.widget.Toast;
 
 import com.nononsenseapps.filepicker.Utils;
 
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.util.FilePickerActivityHelper;
 
-public class DownloadSettingsFragment extends BasePreferenceFragment {
-    private static final int REQUEST_DOWNLOAD_PATH = 0x1235;
-    private static final int REQUEST_DOWNLOAD_AUDIO_PATH = 0x1236;
+import java.io.File;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 
-    private String DOWNLOAD_PATH_PREFERENCE;
+import us.shandian.giga.io.StoredDirectoryHelper;
+
+public class DownloadSettingsFragment extends BasePreferenceFragment {
+    private static final int REQUEST_DOWNLOAD_VIDEO_PATH = 0x1235;
+    private static final int REQUEST_DOWNLOAD_AUDIO_PATH = 0x1236;
+    public static final boolean IGNORE_RELEASE_ON_OLD_PATH = true;
+
+    private String DOWNLOAD_PATH_VIDEO_PREFERENCE;
     private String DOWNLOAD_PATH_AUDIO_PREFERENCE;
+    private String STORAGE_USE_SAF_PREFERENCE;
+
+    private Preference prefPathVideo;
+    private Preference prefPathAudio;
+    private Preference prefStorageAsk;
+
+    private Context ctx;
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        initKeys();
+        DOWNLOAD_PATH_VIDEO_PREFERENCE = getString(R.string.download_path_video_key);
+        DOWNLOAD_PATH_AUDIO_PREFERENCE = getString(R.string.download_path_audio_key);
+        STORAGE_USE_SAF_PREFERENCE = getString(R.string.storage_use_saf);
+        final String downloadStorageAsk = getString(R.string.downloads_storage_ask);
+
+        prefPathVideo = findPreference(DOWNLOAD_PATH_VIDEO_PREFERENCE);
+        prefPathAudio = findPreference(DOWNLOAD_PATH_AUDIO_PREFERENCE);
+        prefStorageAsk = findPreference(downloadStorageAsk);
+
         updatePreferencesSummary();
+        updatePathPickers(!defaultPreferences.getBoolean(downloadStorageAsk, false));
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            prefStorageAsk.setSummary(R.string.downloads_storage_ask_summary);
+        }
+
+        if (hasInvalidPath(DOWNLOAD_PATH_VIDEO_PREFERENCE) || hasInvalidPath(DOWNLOAD_PATH_AUDIO_PREFERENCE)) {
+            updatePreferencesSummary();
+        }
+
+        prefStorageAsk.setOnPreferenceChangeListener((preference, value) -> {
+            updatePathPickers(!(boolean) value);
+            return true;
+        });
     }
 
     @Override
@@ -32,52 +78,187 @@ public class DownloadSettingsFragment extends BasePreferenceFragment {
         addPreferencesFromResource(R.xml.download_settings);
     }
 
-    private void initKeys() {
-        DOWNLOAD_PATH_PREFERENCE = getString(R.string.download_path_key);
-        DOWNLOAD_PATH_AUDIO_PREFERENCE = getString(R.string.download_path_audio_key);
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        ctx = context;
+    }
+
+    @Override
+    public void onDetach() {
+        super.onDetach();
+        ctx = null;
+        prefStorageAsk.setOnPreferenceChangeListener(null);
     }
 
     private void updatePreferencesSummary() {
-        findPreference(DOWNLOAD_PATH_PREFERENCE).setSummary(defaultPreferences.getString(DOWNLOAD_PATH_PREFERENCE, getString(R.string.download_path_summary)));
-        findPreference(DOWNLOAD_PATH_AUDIO_PREFERENCE).setSummary(defaultPreferences.getString(DOWNLOAD_PATH_AUDIO_PREFERENCE, getString(R.string.download_path_audio_summary)));
+        showPathInSummary(DOWNLOAD_PATH_VIDEO_PREFERENCE, R.string.download_path_summary, prefPathVideo);
+        showPathInSummary(DOWNLOAD_PATH_AUDIO_PREFERENCE, R.string.download_path_audio_summary, prefPathAudio);
+    }
+
+    private void showPathInSummary(String prefKey, @StringRes int defaultString, Preference target) {
+        String rawUri = defaultPreferences.getString(prefKey, null);
+        if (rawUri == null || rawUri.isEmpty()) {
+            target.setSummary(getString(defaultString));
+            return;
+        }
+
+        if (rawUri.charAt(0) == File.separatorChar) {
+            target.setSummary(rawUri);
+            return;
+        }
+        if (rawUri.startsWith(ContentResolver.SCHEME_FILE)) {
+            target.setSummary(new File(URI.create(rawUri)).getPath());
+            return;
+        }
+
+        try {
+            rawUri = URLDecoder.decode(rawUri, StandardCharsets.UTF_8.name());
+        } catch (UnsupportedEncodingException e) {
+            // nothing to do
+        }
+
+        target.setSummary(rawUri);
+    }
+
+    private boolean isFileUri(String path) {
+        return path.charAt(0) == File.separatorChar || path.startsWith(ContentResolver.SCHEME_FILE);
+    }
+
+    private boolean hasInvalidPath(String prefKey) {
+        String value = defaultPreferences.getString(prefKey, null);
+        return value == null || value.isEmpty();
+    }
+
+    private void updatePathPickers(boolean enabled) {
+        prefPathVideo.setEnabled(enabled);
+        prefPathAudio.setEnabled(enabled);
+    }
+
+    // FIXME: after releasing the old path, all downloads created on the folder becomes inaccessible
+    private void forgetSAFTree(Context ctx, String oldPath) {
+        if (IGNORE_RELEASE_ON_OLD_PATH) {
+            return;
+        }
+
+        if (oldPath == null || oldPath.isEmpty() || isFileUri(oldPath)) return;
+
+        try {
+            Uri uri = Uri.parse(oldPath);
+
+            ctx.getContentResolver().releasePersistableUriPermission(uri, StoredDirectoryHelper.PERMISSION_FLAGS);
+            ctx.revokeUriPermission(uri, StoredDirectoryHelper.PERMISSION_FLAGS);
+
+            Log.i(TAG, "Revoke old path permissions success on " + oldPath);
+        } catch (Exception err) {
+            Log.e(TAG, "Error revoking old path permissions on " + oldPath, err);
+        }
+    }
+
+    private void showMessageDialog(@StringRes int title, @StringRes int message) {
+        AlertDialog.Builder msg = new AlertDialog.Builder(ctx);
+        msg.setTitle(title);
+        msg.setMessage(message);
+        msg.setPositiveButton(android.R.string.ok, null);
+        msg.show();
     }
 
     @Override
     public boolean onPreferenceTreeClick(Preference preference) {
         if (DEBUG) {
-             Log.d(TAG, "onPreferenceTreeClick() called with: preference = [" + preference + "]");
+            Log.d(TAG, "onPreferenceTreeClick() called with: preference = [" + preference + "]");
         }
 
-        if (preference.getKey().equals(DOWNLOAD_PATH_PREFERENCE)
-                || preference.getKey().equals(DOWNLOAD_PATH_AUDIO_PREFERENCE)) {
-            Intent i = new Intent(getActivity(), FilePickerActivityHelper.class)
+        String key = preference.getKey();
+        int request;
+
+        if (key.equals(STORAGE_USE_SAF_PREFERENCE)) {
+            Toast.makeText(getContext(), R.string.download_choose_new_path, Toast.LENGTH_LONG).show();
+            return true;
+        } else if (key.equals(DOWNLOAD_PATH_VIDEO_PREFERENCE)) {
+            request = REQUEST_DOWNLOAD_VIDEO_PATH;
+        } else if (key.equals(DOWNLOAD_PATH_AUDIO_PREFERENCE)) {
+            request = REQUEST_DOWNLOAD_AUDIO_PATH;
+        } else {
+            return super.onPreferenceTreeClick(preference);
+        }
+
+        Intent i;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && NewPipeSettings.useStorageAccessFramework(ctx)) {
+            i = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE)
+                    .putExtra("android.content.extra.SHOW_ADVANCED", true)
+                    .addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION | StoredDirectoryHelper.PERMISSION_FLAGS);
+        } else {
+            i = new Intent(getActivity(), FilePickerActivityHelper.class)
                     .putExtra(FilePickerActivityHelper.EXTRA_ALLOW_MULTIPLE, false)
                     .putExtra(FilePickerActivityHelper.EXTRA_ALLOW_CREATE_DIR, true)
                     .putExtra(FilePickerActivityHelper.EXTRA_MODE, FilePickerActivityHelper.MODE_DIR);
-            if (preference.getKey().equals(DOWNLOAD_PATH_PREFERENCE)) {
-                startActivityForResult(i, REQUEST_DOWNLOAD_PATH);
-            } else if (preference.getKey().equals(DOWNLOAD_PATH_AUDIO_PREFERENCE)) {
-                startActivityForResult(i, REQUEST_DOWNLOAD_AUDIO_PATH);
-            }
         }
 
-        return super.onPreferenceTreeClick(preference);
+        startActivityForResult(i, request);
+
+        return true;
     }
 
     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
         if (DEBUG) {
-            Log.d(TAG, "onActivityResult() called with: requestCode = [" + requestCode + "], resultCode = [" + resultCode + "], data = [" + data + "]");
+            Log.d(TAG, "onActivityResult() called with: requestCode = [" + requestCode + "], " +
+                    "resultCode = [" + resultCode + "], data = [" + data + "]"
+            );
         }
 
-        if ((requestCode == REQUEST_DOWNLOAD_PATH || requestCode == REQUEST_DOWNLOAD_AUDIO_PATH)
-                && resultCode == Activity.RESULT_OK && data.getData() != null) {
-            String key = getString(requestCode == REQUEST_DOWNLOAD_PATH ? R.string.download_path_key : R.string.download_path_audio_key);
-            String path = Utils.getFileForUri(data.getData()).getAbsolutePath();
+        if (resultCode != Activity.RESULT_OK) return;
 
-            defaultPreferences.edit().putString(key, path).apply();
-            updatePreferencesSummary();
+        String key;
+        if (requestCode == REQUEST_DOWNLOAD_VIDEO_PATH)
+            key = DOWNLOAD_PATH_VIDEO_PREFERENCE;
+        else if (requestCode == REQUEST_DOWNLOAD_AUDIO_PATH)
+            key = DOWNLOAD_PATH_AUDIO_PREFERENCE;
+        else
+            return;
+
+        Uri uri = data.getData();
+        if (uri == null) {
+            showMessageDialog(R.string.general_error, R.string.invalid_directory);
+            return;
         }
+
+
+        // revoke permissions on the old save path (required for SAF only)
+        final Context ctx = getContext();
+        if (ctx == null) throw new NullPointerException("getContext()");
+
+        forgetSAFTree(ctx, defaultPreferences.getString(key, ""));
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && !FilePickerActivityHelper.isOwnFileUri(ctx, uri)) {
+            // steps to acquire the selected path:
+            //     1. acquire permissions on the new save path
+            //     2. save the new path, if step(2) was successful
+            try {
+                ctx.grantUriPermission(ctx.getPackageName(), uri, StoredDirectoryHelper.PERMISSION_FLAGS);
+
+                StoredDirectoryHelper mainStorage = new StoredDirectoryHelper(ctx, uri, null);
+                Log.i(TAG, "Acquiring tree success from " + uri.toString());
+
+                if (!mainStorage.canWrite())
+                    throw new IOException("No write permissions on " + uri.toString());
+            } catch (IOException err) {
+                Log.e(TAG, "Error acquiring tree from " + uri.toString(), err);
+                showMessageDialog(R.string.general_error, R.string.no_available_dir);
+                return;
+            }
+        } else {
+            File target = Utils.getFileForUri(uri);
+            if (!target.canWrite()) {
+                showMessageDialog(R.string.download_to_sdcard_error_title, R.string.download_to_sdcard_error_message);
+                return;
+            }
+            uri = Uri.fromFile(target);
+        }
+
+        defaultPreferences.edit().putString(key, uri.toString()).apply();
+        updatePreferencesSummary();
     }
 }

app/src/main/java/org/schabi/newpipe/settings/HistorySettingsFragment.java

@@ -18,7 +18,8 @@ import io.reactivex.disposables.Disposable;
 
 public class HistorySettingsFragment extends BasePreferenceFragment {
     private String cacheWipeKey;
-    private String viewsHistroyClearKey;
+    private String viewsHistoryClearKey;
+    private String playbackStatesClearKey;
     private String searchHistoryClearKey;
     private HistoryRecordManager recordManager;
     private CompositeDisposable disposables;
@@ -27,7 +28,8 @@ public class HistorySettingsFragment extends BasePreferenceFragment {
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         cacheWipeKey = getString(R.string.metadata_cache_wipe_key);
-        viewsHistroyClearKey = getString(R.string.clear_views_history_key);
+        viewsHistoryClearKey = getString(R.string.clear_views_history_key);
+        playbackStatesClearKey = getString(R.string.clear_playback_states_key);
         searchHistoryClearKey = getString(R.string.clear_search_history_key);
         recordManager = new HistoryRecordManager(getActivity());
         disposables = new CompositeDisposable();
@@ -46,16 +48,31 @@ public class HistorySettingsFragment extends BasePreferenceFragment {
                     Toast.LENGTH_SHORT).show();
         }
 
-        if (preference.getKey().equals(viewsHistroyClearKey)) {
+        if (preference.getKey().equals(viewsHistoryClearKey)) {
             new AlertDialog.Builder(getActivity())
                     .setTitle(R.string.delete_view_history_alert)
                     .setNegativeButton(R.string.cancel, ((dialog, which) -> dialog.dismiss()))
                     .setPositiveButton(R.string.delete, ((dialog, which) -> {
+                        final Disposable onDeletePlaybackStates = recordManager.deleteCompelteStreamStateHistory()
+                                .observeOn(AndroidSchedulers.mainThread())
+                                .subscribe(
+                                        howManyDeleted -> Toast.makeText(getActivity(),
+                                                R.string.watch_history_states_deleted,
+                                                Toast.LENGTH_SHORT).show(),
+                                        throwable -> ErrorActivity.reportError(getContext(),
+                                                throwable,
+                                                SettingsActivity.class, null,
+                                                ErrorActivity.ErrorInfo.make(
+                                                        UserAction.DELETE_FROM_HISTORY,
+                                                        "none",
+                                                        "Delete playback states",
+                                                        R.string.general_error)));
+
                         final Disposable onDelete = recordManager.deleteWholeStreamHistory()
                                 .observeOn(AndroidSchedulers.mainThread())
                                 .subscribe(
                                         howManyDeleted -> Toast.makeText(getActivity(),
-                                                R.string.view_history_deleted,
+                                                R.string.watch_history_deleted,
                                                 Toast.LENGTH_SHORT).show(),
                                         throwable -> ErrorActivity.reportError(getContext(),
                                                 throwable,
@@ -78,6 +95,7 @@ public class HistorySettingsFragment extends BasePreferenceFragment {
                                                         "none",
                                                         "Delete search history",
                                                         R.string.general_error)));
+                        disposables.add(onDeletePlaybackStates);
                         disposables.add(onClearOrphans);
                         disposables.add(onDelete);
                     }))
@@ -85,12 +103,39 @@ public class HistorySettingsFragment extends BasePreferenceFragment {
                     .show();
         }
 
+        if (preference.getKey().equals(playbackStatesClearKey)) {
+            new AlertDialog.Builder(getActivity())
+                    .setTitle(R.string.delete_playback_states_alert)
+                    .setNegativeButton(R.string.cancel, ((dialog, which) -> dialog.dismiss()))
+                    .setPositiveButton(R.string.delete, ((dialog, which) -> {
+
+                        final Disposable onDeletePlaybackStates = recordManager.deleteCompelteStreamStateHistory()
+                                .observeOn(AndroidSchedulers.mainThread())
+                                .subscribe(
+                                        howManyDeleted -> Toast.makeText(getActivity(),
+                                                R.string.watch_history_states_deleted,
+                                                Toast.LENGTH_SHORT).show(),
+                                        throwable -> ErrorActivity.reportError(getContext(),
+                                                throwable,
+                                                SettingsActivity.class, null,
+                                                ErrorActivity.ErrorInfo.make(
+                                                        UserAction.DELETE_FROM_HISTORY,
+                                                        "none",
+                                                        "Delete playback states",
+                                                        R.string.general_error)));
+
+                        disposables.add(onDeletePlaybackStates);
+                    }))
+                    .create()
+                    .show();
+        }
+
         if (preference.getKey().equals(searchHistoryClearKey)) {
             new AlertDialog.Builder(getActivity())
                     .setTitle(R.string.delete_search_history_alert)
                     .setNegativeButton(R.string.cancel, ((dialog, which) -> dialog.dismiss()))
                     .setPositiveButton(R.string.delete, ((dialog, which) -> {
-                        final Disposable onDelete = recordManager.deleteWholeSearchHistory()
+                        final Disposable onDelete = recordManager.deleteCompleteSearchHistory()
                                 .observeOn(AndroidSchedulers.mainThread())
                                 .subscribe(
                                         howManyDeleted -> Toast.makeText(getActivity(),

app/src/main/java/org/schabi/newpipe/settings/MainSettingsFragment.java

@@ -4,6 +4,7 @@ import android.os.Bundle;
 import android.support.v7.preference.Preference;
 
 import org.schabi.newpipe.BuildConfig;
+import org.schabi.newpipe.CheckForNewAppVersionTask;
 import org.schabi.newpipe.R;
 
 public class MainSettingsFragment extends BasePreferenceFragment {
@@ -13,6 +14,13 @@ public class MainSettingsFragment extends BasePreferenceFragment {
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         addPreferencesFromResource(R.xml.main_settings);
 
+        if (!CheckForNewAppVersionTask.isGithubApk()) {
+            final Preference update = findPreference(getString(R.string.update_pref_screen_key));
+            getPreferenceScreen().removePreference(update);
+
+            defaultPreferences.edit().putBoolean(getString(R.string.update_app_key), false).apply();
+        }
+
         if (!DEBUG) {
             final Preference debug = findPreference(getString(R.string.debug_pref_screen_key));
             getPreferenceScreen().removePreference(debug);

app/src/main/java/org/schabi/newpipe/settings/NewPipeSettings.java

@@ -70,57 +70,39 @@ public class NewPipeSettings {
         getAudioDownloadFolder(context);
     }
 
-    public static File getVideoDownloadFolder(Context context) {
-        return getDir(context, R.string.download_path_key, Environment.DIRECTORY_MOVIES);
+    private static void getVideoDownloadFolder(Context context) {
+        getDir(context, R.string.download_path_video_key, Environment.DIRECTORY_MOVIES);
     }
 
-    public static String getVideoDownloadPath(Context context) {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        final String key = context.getString(R.string.download_path_key);
-        return prefs.getString(key, Environment.DIRECTORY_MOVIES);
+    private static void getAudioDownloadFolder(Context context) {
+        getDir(context, R.string.download_path_audio_key, Environment.DIRECTORY_MUSIC);
     }
 
-    public static File getAudioDownloadFolder(Context context) {
-        return getDir(context, R.string.download_path_audio_key, Environment.DIRECTORY_MUSIC);
-    }
-
-    public static String getAudioDownloadPath(Context context) {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        final String key = context.getString(R.string.download_path_audio_key);
-        return prefs.getString(key, Environment.DIRECTORY_MUSIC);
-    }
-
-    private static File getDir(Context context, int keyID, String defaultDirectoryName) {
+    private static void getDir(Context context, int keyID, String defaultDirectoryName) {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
         final String key = context.getString(keyID);
         String downloadPath = prefs.getString(key, null);
-        if ((downloadPath != null) && (!downloadPath.isEmpty())) return new File(downloadPath.trim());
+        if ((downloadPath != null) && (!downloadPath.isEmpty())) return;
 
-        final File dir = getDir(defaultDirectoryName);
-        SharedPreferences.Editor spEditor = prefs.edit();
-        spEditor.putString(key, getNewPipeChildFolderPathForDir(dir));
-        spEditor.apply();
-        return dir;
-    }
-
-    @NonNull
-    private static File getDir(String defaultDirectoryName) {
-        return new File(Environment.getExternalStorageDirectory(), defaultDirectoryName);
-    }
-
-    public static void resetDownloadFolders(Context context) {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        resetDownloadFolder(prefs, context.getString(R.string.download_path_audio_key), Environment.DIRECTORY_MUSIC);
-        resetDownloadFolder(prefs, context.getString(R.string.download_path_key), Environment.DIRECTORY_MOVIES);
-    }
-
-    private static void resetDownloadFolder(SharedPreferences prefs, String key, String defaultDirectoryName) {
         SharedPreferences.Editor spEditor = prefs.edit();
         spEditor.putString(key, getNewPipeChildFolderPathForDir(getDir(defaultDirectoryName)));
         spEditor.apply();
     }
 
-    private static String getNewPipeChildFolderPathForDir(File dir) {
-        return new File(dir, "NewPipe").getAbsolutePath();
+    @NonNull
+    public static File getDir(String defaultDirectoryName) {
+        return new File(Environment.getExternalStorageDirectory(), defaultDirectoryName);
     }
+
+    private static String getNewPipeChildFolderPathForDir(File dir) {
+        return new File(dir, "NewPipe").toURI().toString();
+    }
+
+    public static boolean useStorageAccessFramework(Context context) {
+        final String key = context.getString(R.string.storage_use_saf);
+        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+
+        return prefs.getBoolean(key, false);
+    }
+
 }

app/src/main/java/org/schabi/newpipe/settings/SelectKioskFragment.java

@@ -16,7 +16,6 @@ import android.widget.TextView;
 import org.schabi.newpipe.MainActivity;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.extractor.NewPipe;
-import org.schabi.newpipe.extractor.ServiceList;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.report.UserAction;
@@ -124,9 +123,6 @@ public class SelectKioskFragment extends DialogFragment {
                 throws Exception {
 
             for(StreamingService service : NewPipe.getServices()) {
-                //TODO: Multi-service support
-                if (service.getServiceId() != ServiceList.YouTube.getServiceId() && !DEBUG) continue;
-
                 for(String kioskId : service.getKioskList().getAvailableKiosks()) {
                     String name = String.format(getString(R.string.service_kiosk_string),
                             service.getServiceInfo().getName(),

app/src/main/java/org/schabi/newpipe/settings/UpdateSettingsFragment.java

@@ -0,0 +1,33 @@
+package org.schabi.newpipe.settings;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.preference.Preference;
+
+import org.schabi.newpipe.CheckForNewAppVersionTask;
+import org.schabi.newpipe.R;
+
+public class UpdateSettingsFragment extends BasePreferenceFragment {
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        String updateToggleKey = getString(R.string.update_app_key);
+        findPreference(updateToggleKey).setOnPreferenceChangeListener(updatePreferenceChange);
+    }
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        addPreferencesFromResource(R.xml.update_settings);
+    }
+
+    private Preference.OnPreferenceChangeListener updatePreferenceChange
+            = (preference, newValue) ->  {
+
+        defaultPreferences.edit().putBoolean(getString(R.string.update_app_key),
+                (boolean) newValue).apply();
+
+        return true;
+    };
+}

app/src/main/java/org/schabi/newpipe/settings/tabs/ChooseTabsFragment.java

@@ -229,6 +229,12 @@ public class ChooseTabsFragment extends Fragment {
                     returnList.add(new ChooseTabListItem(tab.getTabId(), getString(R.string.channel_page_summary),
                             tab.getTabIconRes(context)));
                     break;
+                case DEFAULT_KIOSK:
+                    if (!tabList.contains(tab)) {
+                        returnList.add(new ChooseTabListItem(tab.getTabId(), "Default Kiosk",
+                                ThemeHelper.resolveResourceIdFromAttr(context, R.attr.ic_hot)));
+                    }
+                    break;
                 default:
                     if (!tabList.contains(tab)) {
                         returnList.add(new ChooseTabListItem(context, tab));
@@ -310,6 +316,9 @@ public class ChooseTabsFragment extends Fragment {
                     case CHANNEL:
                         tabName = NewPipe.getNameOfService(((Tab.ChannelTab) tab).getChannelServiceId()) + "/" + tabName;
                         break;
+                    case DEFAULT_KIOSK:
+                        tabName = "Default Kiosk";
+                        break;
                 }
 
 

app/src/main/java/org/schabi/newpipe/settings/tabs/Tab.java

@@ -9,7 +9,10 @@ import android.support.v4.app.Fragment;
 import com.grack.nanojson.JsonObject;
 import com.grack.nanojson.JsonSink;
 
+import org.jsoup.helper.StringUtil;
+import org.schabi.newpipe.App;
 import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.fragments.BlankFragment;
 import org.schabi.newpipe.fragments.list.channel.ChannelFragment;
@@ -19,6 +22,7 @@ import org.schabi.newpipe.local.feed.FeedFragment;
 import org.schabi.newpipe.local.history.StatisticsPlaylistFragment;
 import org.schabi.newpipe.local.subscription.SubscriptionFragment;
 import org.schabi.newpipe.util.KioskTranslator;
+import org.schabi.newpipe.util.ServiceHelper;
 import org.schabi.newpipe.util.ThemeHelper;
 
 public abstract class Tab {
@@ -111,6 +115,12 @@ public abstract class Tab {
                     return new KioskTab(jsonObject);
                 case CHANNEL:
                     return new ChannelTab(jsonObject);
+                case DEFAULT_KIOSK:
+                    DefaultKioskTab tab = new DefaultKioskTab();
+                    if(!StringUtil.isBlank(tab.getKioskId())){
+                        return tab;
+                    }
+                    return null;
             }
         }
 
@@ -128,7 +138,8 @@ public abstract class Tab {
         BOOKMARKS(new BookmarksTab()),
         HISTORY(new HistoryTab()),
         KIOSK(new KioskTab()),
-        CHANNEL(new ChannelTab());
+        CHANNEL(new ChannelTab()),
+        DEFAULT_KIOSK(new DefaultKioskTab());
 
         private Tab tab;
 
@@ -413,4 +424,55 @@ public abstract class Tab {
             return channelName;
         }
     }
+
+    public static class DefaultKioskTab extends Tab {
+        public static final int ID = 7;
+
+        private int kioskServiceId;
+        private String kioskId;
+
+        protected DefaultKioskTab() {
+            initKiosk();
+        }
+
+        public void initKiosk() {
+            this.kioskServiceId = ServiceHelper.getSelectedServiceId(App.getApp());
+            try {
+                this.kioskId = NewPipe.getService(this.kioskServiceId).getKioskList().getDefaultKioskId();
+            } catch (ExtractionException e) {
+                this.kioskId = "";
+            }
+        }
+
+        @Override
+        public int getTabId() {
+            return ID;
+        }
+
+        @Override
+        public String getTabName(Context context) {
+            return KioskTranslator.getTranslatedKioskName(kioskId, context);
+        }
+
+        @DrawableRes
+        @Override
+        public int getTabIconRes(Context context) {
+            final int kioskIcon = KioskTranslator.getKioskIcons(kioskId, context);
+
+            if (kioskIcon <= 0) {
+                throw new IllegalStateException("Kiosk ID is not valid: \"" + kioskId + "\"");
+            }
+
+            return kioskIcon;
+        }
+
+        @Override
+        public KioskFragment getFragment() throws ExtractionException {
+            return KioskFragment.getInstance(kioskServiceId, kioskId);
+        }
+
+        public String getKioskId() {
+            return kioskId;
+        }
+    }
 }

app/src/main/java/org/schabi/newpipe/settings/tabs/TabsJsonHelper.java

@@ -9,27 +9,18 @@ import com.grack.nanojson.JsonParserException;
 import com.grack.nanojson.JsonStringWriter;
 import com.grack.nanojson.JsonWriter;
 
-import org.schabi.newpipe.settings.tabs.Tab.Type;
+import org.jsoup.helper.StringUtil;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
-import static org.schabi.newpipe.extractor.ServiceList.YouTube;
-
 /**
  * Class to get a JSON representation of a list of tabs, and the other way around.
  */
 public class TabsJsonHelper {
     private static final String JSON_TABS_ARRAY_KEY = "tabs";
 
-    protected static final List<Tab> FALLBACK_INITIAL_TABS_LIST = Collections.unmodifiableList(Arrays.asList(
-            new Tab.KioskTab(YouTube.getServiceId(), "Trending"),
-            Type.SUBSCRIPTIONS.getTab(),
-            Type.BOOKMARKS.getTab()
-    ));
-
     public static class InvalidJsonException extends Exception {
         private InvalidJsonException() {
             super();
@@ -48,7 +39,7 @@ public class TabsJsonHelper {
      * Try to reads the passed JSON and returns the list of tabs if no error were encountered.
      * <p>
      * If the JSON is null or empty, or the list of tabs that it represents is empty, the
-     * {@link #FALLBACK_INITIAL_TABS_LIST fallback list} will be returned.
+     * {@link #getDefaultTabs fallback list} will be returned.
      * <p>
      * Tabs with invalid ids (i.e. not in the {@link Tab.Type} enum) will be ignored.
      *
@@ -58,7 +49,7 @@ public class TabsJsonHelper {
      */
     public static List<Tab> getTabsFromJson(@Nullable String tabsJson) throws InvalidJsonException {
         if (tabsJson == null || tabsJson.isEmpty()) {
-            return FALLBACK_INITIAL_TABS_LIST;
+            return getDefaultTabs();
         }
 
         final List<Tab> returnTabs = new ArrayList<>();
@@ -86,12 +77,22 @@ public class TabsJsonHelper {
         }
 
         if (returnTabs.isEmpty()) {
-            return FALLBACK_INITIAL_TABS_LIST;
+            return getDefaultTabs();
         }
 
         return returnTabs;
     }
 
+    public static List<Tab> getDefaultTabs(){
+        List<Tab> tabs = new ArrayList<>();
+        Tab.DefaultKioskTab tab = new Tab.DefaultKioskTab();
+        if(!StringUtil.isBlank(tab.getKioskId())){
+            tabs.add(tab);
+        }
+        tabs.add(Tab.Type.SUBSCRIPTIONS.getTab());
+        tabs.add(Tab.Type.BOOKMARKS.getTab());
+        return Collections.unmodifiableList(tabs);
+    }
     /**
      * Get a JSON representation from a list of tabs.
      *

app/src/main/java/org/schabi/newpipe/settings/tabs/TabsManager.java

@@ -44,7 +44,7 @@ public class TabsManager {
     }
 
     public List<Tab> getDefaultTabs() {
-        return TabsJsonHelper.FALLBACK_INITIAL_TABS_LIST;
+        return TabsJsonHelper.getDefaultTabs();
     }
 
     /*//////////////////////////////////////////////////////////////////////////

app/src/main/java/org/schabi/newpipe/streams/DataReader.java

@@ -1,9 +1,10 @@
 package org.schabi.newpipe.streams;
 
+import org.schabi.newpipe.streams.io.SharpStream;
+
 import java.io.EOFException;
 import java.io.IOException;
-
-import org.schabi.newpipe.streams.io.SharpStream;
+import java.io.InputStream;
 
 /**
  * @author kapodamy
@@ -15,89 +16,239 @@ public class DataReader {
     public final static int INTEGER_SIZE = 4;
     public final static int FLOAT_SIZE = 4;
 
-    private long pos;
-    public final SharpStream stream;
-    private final boolean rewind;
+    private final static int BUFFER_SIZE = 128 * 1024;// 128 KiB
+
+    private long position = 0;
+    private final SharpStream stream;
+
+    private InputStream view;
+    private int viewSize;
 
     public DataReader(SharpStream stream) {
-        this.rewind = stream.canRewind();
         this.stream = stream;
-        this.pos = 0L;
+        this.readOffset = this.readBuffer.length;
     }
 
     public long position() {
-        return pos;
+        return position;
     }
 
-    public final int readInt() throws IOException {
+    public int read() throws IOException {
+        if (fillBuffer()) {
+            return -1;
+        }
+
+        position++;
+        readCount--;
+
+        return readBuffer[readOffset++] & 0xFF;
+    }
+
+    public long skipBytes(long amount) throws IOException {
+        if (readCount < 0) {
+            return 0;
+        } else if (readCount == 0) {
+            amount = stream.skip(amount);
+        } else {
+            if (readCount > amount) {
+                readCount -= (int) amount;
+                readOffset += (int) amount;
+            } else {
+                amount = readCount + stream.skip(amount - readCount);
+                readCount = 0;
+                readOffset = readBuffer.length;
+            }
+        }
+
+        position += amount;
+        return amount;
+    }
+
+    public int readInt() throws IOException {
         primitiveRead(INTEGER_SIZE);
         return primitive[0] << 24 | primitive[1] << 16 | primitive[2] << 8 | primitive[3];
     }
 
-    public final int read() throws IOException {
-        int value = stream.read();
-        if (value == -1) {
-            throw new EOFException();
-        }
-
-        pos++;
-        return value;
+    public short readShort() throws IOException {
+        primitiveRead(SHORT_SIZE);
+        return (short) (primitive[0] << 8 | primitive[1]);
     }
 
-    public final long skipBytes(long amount) throws IOException {
-        amount = stream.skip(amount);
-        pos += amount;
-        return amount;
-    }
-
-    public final long readLong() throws IOException {
+    public long readLong() throws IOException {
         primitiveRead(LONG_SIZE);
         long high = primitive[0] << 24 | primitive[1] << 16 | primitive[2] << 8 | primitive[3];
         long low = primitive[4] << 24 | primitive[5] << 16 | primitive[6] << 8 | primitive[7];
         return high << 32 | low;
     }
 
-    public final short readShort() throws IOException {
-        primitiveRead(SHORT_SIZE);
-        return (short) (primitive[0] << 8 | primitive[1]);
-    }
-
-    public final int read(byte[] buffer) throws IOException {
+    public int read(byte[] buffer) throws IOException {
         return read(buffer, 0, buffer.length);
     }
 
-    public final int read(byte[] buffer, int offset, int count) throws IOException {
-        int res = stream.read(buffer, offset, count);
-        pos += res;
+    public int read(byte[] buffer, int offset, int count) throws IOException {
+        if (readCount < 0) {
+            return -1;
+        }
+        int total = 0;
 
-        return res;
+        if (count >= readBuffer.length) {
+            if (readCount > 0) {
+                System.arraycopy(readBuffer, readOffset, buffer, offset, readCount);
+                readOffset += readCount;
+
+                offset += readCount;
+                count -= readCount;
+
+                total = readCount;
+                readCount = 0;
+            }
+            total += Math.max(stream.read(buffer, offset, count), 0);
+        } else {
+            while (count > 0 && !fillBuffer()) {
+                int read = Math.min(readCount, count);
+                System.arraycopy(readBuffer, readOffset, buffer, offset, read);
+
+                readOffset += read;
+                readCount -= read;
+
+                offset += read;
+                count -= read;
+
+                total += read;
+            }
+        }
+
+        position += total;
+        return total;
     }
 
-    public final boolean available() {
-        return stream.available() > 0;
+    public boolean available() {
+        return readCount > 0 || stream.available() > 0;
     }
 
     public void rewind() throws IOException {
         stream.rewind();
-        pos = 0;
+
+        if ((position - viewSize) > 0) {
+            viewSize = 0;// drop view
+        } else {
+            viewSize += position;
+        }
+
+        position = 0;
+        readOffset = readBuffer.length;
     }
 
     public boolean canRewind() {
-        return rewind;
+        return stream.canRewind();
     }
 
-    private short[] primitive = new short[LONG_SIZE];
+    /**
+     * Wraps this instance of {@code DataReader} into {@code InputStream}
+     * object. Note: Any read in the {@code DataReader} will not modify
+     * (decrease) the view size
+     *
+     * @param size the size of the view
+     * @return the view
+     */
+    public InputStream getView(int size) {
+        if (view == null) {
+            view = new InputStream() {
+                @Override
+                public int read() throws IOException {
+                    if (viewSize < 1) {
+                        return -1;
+                    }
+                    int res = DataReader.this.read();
+                    if (res > 0) {
+                        viewSize--;
+                    }
+                    return res;
+                }
+
+                @Override
+                public int read(byte[] buffer) throws IOException {
+                    return read(buffer, 0, buffer.length);
+                }
+
+                @Override
+                public int read(byte[] buffer, int offset, int count) throws IOException {
+                    if (viewSize < 1) {
+                        return -1;
+                    }
+
+                    int res = DataReader.this.read(buffer, offset, Math.min(viewSize, count));
+                    viewSize -= res;
+
+                    return res;
+                }
+
+                @Override
+                public long skip(long amount) throws IOException {
+                    if (viewSize < 1) {
+                        return 0;
+                    }
+                    int res = (int) DataReader.this.skipBytes(Math.min(amount, viewSize));
+                    viewSize -= res;
+
+                    return res;
+                }
+
+                @Override
+                public int available() {
+                    return viewSize;
+                }
+
+                @Override
+                public void close() {
+                    viewSize = 0;
+                }
+
+                @Override
+                public boolean markSupported() {
+                    return false;
+                }
+
+            };
+        }
+        viewSize = size;
+
+        return view;
+    }
+
+    private final short[] primitive = new short[LONG_SIZE];
 
     private void primitiveRead(int amount) throws IOException {
         byte[] buffer = new byte[amount];
-        int read = stream.read(buffer, 0, amount);
-        pos += read;
+        int read = read(buffer, 0, amount);
+
         if (read != amount) {
-            throw new EOFException("Truncated data, missing " + String.valueOf(amount - read) + " bytes");
+            throw new EOFException("Truncated stream, missing " + String.valueOf(amount - read) + " bytes");
         }
 
-        for (int i = 0; i < buffer.length; i++) {
-            primitive[i] = (short) (buffer[i] & 0xFF);// the "byte" datatype is signed and is very annoying
+        for (int i = 0; i < amount; i++) {
+            primitive[i] = (short) (buffer[i] & 0xFF);// the "byte" data type in java is signed and is very annoying
         }
     }
+
+    private final byte[] readBuffer = new byte[BUFFER_SIZE];
+    private int readOffset;
+    private int readCount;
+
+    private boolean fillBuffer() throws IOException {
+        if (readCount < 0) {
+            return true;
+        }
+        if (readOffset >= readBuffer.length) {
+            readCount = stream.read(readBuffer);
+            if (readCount < 1) {
+                readCount = -1;
+                return true;
+            }
+            readOffset = 0;
+        }
+
+        return readCount < 1;
+    }
+
 }

app/src/main/java/org/schabi/newpipe/streams/Mp4DashReader.java

@@ -1,17 +1,15 @@
 package org.schabi.newpipe.streams;
 
+import org.schabi.newpipe.streams.io.SharpStream;
+
 import java.io.EOFException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
-
 import java.nio.ByteBuffer;
-
 import java.util.ArrayList;
 import java.util.NoSuchElementException;
 
-import org.schabi.newpipe.streams.io.SharpStream;
-
 /**
  * @author kapodamy
  */
@@ -35,14 +33,29 @@ public class Mp4DashReader {
     private static final int ATOM_TREX = 0x74726578;
     private static final int ATOM_TKHD = 0x746B6864;
     private static final int ATOM_MFRA = 0x6D667261;
-    private static final int ATOM_TFRA = 0x74667261;
     private static final int ATOM_MDHD = 0x6D646864;
+    private static final int ATOM_EDTS = 0x65647473;
+    private static final int ATOM_ELST = 0x656C7374;
+    private static final int ATOM_HDLR = 0x68646C72;
+    private static final int ATOM_MINF = 0x6D696E66;
+    private static final int ATOM_DINF = 0x64696E66;
+    private static final int ATOM_STBL = 0x7374626C;
+    private static final int ATOM_STSD = 0x73747364;
+    private static final int ATOM_VMHD = 0x766D6864;
+    private static final int ATOM_SMHD = 0x736D6864;
+
     private static final int BRAND_DASH = 0x64617368;
+    private static final int BRAND_ISO5 = 0x69736F35;
+
+    private static final int HANDLER_VIDE = 0x76696465;
+    private static final int HANDLER_SOUN = 0x736F756E;
+    private static final int HANDLER_SUBT = 0x73756274;
     // </editor-fold>
 
     private final DataReader stream;
 
     private Mp4Track[] tracks = null;
+    private int[] brands = null;
 
     private Box box;
     private Moof moof;
@@ -50,9 +63,10 @@ public class Mp4DashReader {
     private boolean chunkZero = false;
 
     private int selectedTrack = -1;
+    private Box backupBox = null;
 
     public enum TrackKind {
-        Audio, Video, Other
+        Audio, Video, Subtitles, Other
     }
 
     public Mp4DashReader(SharpStream source) {
@@ -65,8 +79,15 @@ public class Mp4DashReader {
         }
 
         box = readBox(ATOM_FTYP);
-        if (parse_ftyp() != BRAND_DASH) {
-            throw new NoSuchElementException("Main Brand is not dash");
+        brands = parse_ftyp(box);
+        switch (brands[0]) {
+            case BRAND_DASH:
+            case BRAND_ISO5:// ¿why not?
+                break;
+            default:
+                throw new NoSuchElementException(
+                        "Not a MPEG-4 DASH container, major brand is not 'dash' or 'iso5' is " + boxName(brands[0])
+                );
         }
 
         Moov moov = null;
@@ -84,8 +105,6 @@ public class Mp4DashReader {
                     break;
                 case ATOM_MFRA:
                     break;
-                case ATOM_MDAT:
-                    throw new IOException("Expected moof, found mdat");
             }
         }
 
@@ -107,15 +126,26 @@ public class Mp4DashReader {
                 }
             }
 
-            if (moov.trak[i].tkhd.bHeight == 0 && moov.trak[i].tkhd.bWidth == 0) {
-                tracks[i].kind = moov.trak[i].tkhd.bVolume == 0 ? TrackKind.Other : TrackKind.Audio;
-            } else {
-                tracks[i].kind = TrackKind.Video;
+            switch (moov.trak[i].mdia.hdlr.subType) {
+                case HANDLER_VIDE:
+                    tracks[i].kind = TrackKind.Video;
+                    break;
+                case HANDLER_SOUN:
+                    tracks[i].kind = TrackKind.Audio;
+                    break;
+                case HANDLER_SUBT:
+                    tracks[i].kind = TrackKind.Subtitles;
+                    break;
+                default:
+                    tracks[i].kind = TrackKind.Other;
+                    break;
             }
         }
+
+        backupBox = box;
     }
 
-    public Mp4Track selectTrack(int index) {
+    Mp4Track selectTrack(int index) {
         selectedTrack = index;
         return tracks[index];
     }
@@ -126,7 +156,7 @@ public class Mp4DashReader {
      * @return list with a basic info
      * @throws IOException if the source stream is not seekeable
      */
-    public int getFragmentsCount() throws IOException {
+    int getFragmentsCount() throws IOException {
         if (selectedTrack < 0) {
             throw new IllegalStateException("track no selected");
         }
@@ -136,7 +166,6 @@ public class Mp4DashReader {
 
         Box tmp;
         int count = 0;
-        long orig_offset = stream.position();
 
         if (box.type == ATOM_MOOF) {
             tmp = box;
@@ -162,17 +191,36 @@ public class Mp4DashReader {
             ensure(tmp);
         } while (stream.available() && (tmp = readBox()) != null);
 
-        stream.rewind();
-        stream.skipBytes((int) orig_offset);
+        rewind();
 
         return count;
     }
 
+    public int[] getBrands() {
+        if (brands == null) throw new IllegalStateException("Not parsed");
+        return brands;
+    }
+
+    public void rewind() throws IOException {
+        if (!stream.canRewind()) {
+            throw new IOException("The provided stream doesn't allow seek");
+        }
+        if (box == null) {
+            return;
+        }
+
+        box = backupBox;
+        chunkZero = false;
+
+        stream.rewind();
+        stream.skipBytes(backupBox.offset + (DataReader.INTEGER_SIZE * 2));
+    }
+
     public Mp4Track[] getAvailableTracks() {
         return tracks;
     }
 
-    public Mp4TrackChunk getNextChunk() throws IOException {
+    public Mp4DashChunk getNextChunk(boolean infoOnly) throws IOException {
         Mp4Track track = tracks[selectedTrack];
 
         while (stream.available()) {
@@ -208,7 +256,7 @@ public class Mp4DashReader {
                             if (hasFlag(moof.traf.tfhd.bFlags, 0x10)) {
                                 moof.traf.trun.chunkSize = moof.traf.tfhd.defaultSampleSize * moof.traf.trun.entryCount;
                             } else {
-                                moof.traf.trun.chunkSize = box.size - 8;
+                                moof.traf.trun.chunkSize = (int) (box.size - 8);
                             }
                         }
                         if (!hasFlag(moof.traf.trun.bFlags, 0x900) && moof.traf.trun.chunkDuration == 0) {
@@ -228,9 +276,12 @@ public class Mp4DashReader {
                         continue;// find another chunk
                     }
 
-                    Mp4TrackChunk chunk = new Mp4TrackChunk();
+                    Mp4DashChunk chunk = new Mp4DashChunk();
                     chunk.moof = moof;
-                    chunk.data = new TrackDataChunk(stream, moof.traf.trun.chunkSize);
+                    if (!infoOnly) {
+                        chunk.data = stream.getView(moof.traf.trun.chunkSize);
+                    }
+
                     moof = null;
 
                     stream.skipBytes(chunk.moof.traf.trun.dataOffset);
@@ -269,6 +320,10 @@ public class Mp4DashReader {
         b.size = stream.readInt();
         b.type = stream.readInt();
 
+        if (b.size == 1) {
+            b.size = stream.readLong();
+        }
+
         return b;
     }
 
@@ -280,6 +335,25 @@ public class Mp4DashReader {
         return b;
     }
 
+    private byte[] readFullBox(Box ref) throws IOException {
+        // full box reading is limited to 2 GiB, and should be enough
+        int size = (int) ref.size;
+
+        ByteBuffer buffer = ByteBuffer.allocate(size);
+        buffer.putInt(size);
+        buffer.putInt(ref.type);
+
+        int read = size - 8;
+
+        if (stream.read(buffer.array(), 8, read) != read) {
+            throw new EOFException(
+                    String.format("EOF reached in box: type=%s offset=%s size=%s", boxName(ref.type), ref.offset, ref.size)
+            );
+        }
+
+        return buffer.array();
+    }
+
     private void ensure(Box ref) throws IOException {
         long skip = ref.offset + ref.size - stream.position();
 
@@ -310,6 +384,14 @@ public class Mp4DashReader {
         return null;
     }
 
+    private Box untilAnyBox(Box ref) throws IOException {
+        if (stream.position() >= (ref.offset + ref.size)) {
+            return null;
+        }
+
+        return readBox();
+    }
+
     // </editor-fold>
 
     // <editor-fold defaultState="collapsed" desc="Box readers">
@@ -329,7 +411,7 @@ public class Mp4DashReader {
                 return obj;
             }
         }
-        
+
         return obj;
     }
 
@@ -397,14 +479,14 @@ public class Mp4DashReader {
 
     private long parse_tfdt() throws IOException {
         int version = stream.read();
-        stream.skipBytes(3);// flags     
+        stream.skipBytes(3);// flags
         return version == 0 ? readUint() : stream.readLong();
     }
 
     private Trun parse_trun() throws IOException {
         Trun obj = new Trun();
         obj.bFlags = stream.readInt();
-        obj.entryCount = stream.readInt();// unsigned int    
+        obj.entryCount = stream.readInt();// unsigned int
 
         obj.entries_rowSize = 0;
         if (hasFlag(obj.bFlags, 0x0100)) {
@@ -448,11 +530,18 @@ public class Mp4DashReader {
         return obj;
     }
 
-    private int parse_ftyp() throws IOException {
-        int brand = stream.readInt();
+    private int[] parse_ftyp(Box ref) throws IOException {
+        int i = 0;
+        int[] list = new int[(int) ((ref.offset + ref.size - stream.position() - 4) / 4)];
+
+        list[i++] = stream.readInt();// major brand
+
         stream.skipBytes(4);// minor version
 
-        return brand;
+        for (; i < list.length; i++)
+            list[i] = stream.readInt();// compatible brands
+
+        return list;
     }
 
     private Mvhd parse_mvhd() throws IOException {
@@ -521,32 +610,66 @@ public class Mp4DashReader {
         trak.tkhd = parse_tkhd();
         ensure(b);
 
-        b = untilBox(ref, ATOM_MDIA);
-        trak.mdia = new byte[b.size];
+        while ((b = untilBox(ref, ATOM_MDIA, ATOM_EDTS)) != null) {
+            switch (b.type) {
+                case ATOM_MDIA:
+                    trak.mdia = parse_mdia(b);
+                    break;
+                case ATOM_EDTS:
+                    trak.edst_elst = parse_edts(b);
+                    break;
+            }
 
-        ByteBuffer buffer = ByteBuffer.wrap(trak.mdia);
-        buffer.putInt(b.size);
-        buffer.putInt(ATOM_MDIA);
-        stream.read(trak.mdia, 8, b.size - 8);
-
-        trak.mdia_mdhd_timeScale = parse_mdia(buffer);
+            ensure(b);
+        }
 
         return trak;
     }
 
-    private int parse_mdia(ByteBuffer data) {
-        while (data.hasRemaining()) {
-            int end = data.position() + data.getInt();
-            if (data.getInt() == ATOM_MDHD) {
-                byte version = data.get();
-                data.position(data.position() + 3 + ((version == 0 ? 4 : 8) * 2));
-                return data.getInt();
-            }
+    private Mdia parse_mdia(Box ref) throws IOException {
+        Mdia obj = new Mdia();
 
-            data.position(end);
+        Box b;
+        while ((b = untilBox(ref, ATOM_MDHD, ATOM_HDLR, ATOM_MINF)) != null) {
+            switch (b.type) {
+                case ATOM_MDHD:
+                    obj.mdhd = readFullBox(b);
+
+                    // read time scale
+                    ByteBuffer buffer = ByteBuffer.wrap(obj.mdhd);
+                    byte version = buffer.get(8);
+                    buffer.position(12 + ((version == 0 ? 4 : 8) * 2));
+                    obj.mdhd_timeScale = buffer.getInt();
+                    break;
+                case ATOM_HDLR:
+                    obj.hdlr = parse_hdlr(b);
+                    break;
+                case ATOM_MINF:
+                    obj.minf = parse_minf(b);
+                    break;
+            }
+            ensure(b);
         }
 
-        return 0;// this NEVER should happen
+        return obj;
+    }
+
+    private Hdlr parse_hdlr(Box ref) throws IOException {
+        // version
+        // flags
+        stream.skipBytes(4);
+
+        Hdlr obj = new Hdlr();
+        obj.bReserved = new byte[12];
+
+        obj.type = stream.readInt();
+        obj.subType = stream.readInt();
+        stream.read(obj.bReserved);
+
+        // component name (is a ansi/ascii string)
+        stream.skipBytes((ref.offset + ref.size) - stream.position());
+
+        return obj;
     }
 
     private Moov parse_moov(Box ref) throws IOException {
@@ -570,7 +693,7 @@ public class Mp4DashReader {
             ensure(b);
         }
 
-        moov.trak = tmp.toArray(new Trak[tmp.size()]);
+        moov.trak = tmp.toArray(new Trak[0]);
 
         return moov;
     }
@@ -584,7 +707,7 @@ public class Mp4DashReader {
             ensure(b);
         }
 
-        return tmp.toArray(new Trex[tmp.size()]);
+        return tmp.toArray(new Trex[0]);
     }
 
     private Trex parse_trex() throws IOException {
@@ -602,74 +725,74 @@ public class Mp4DashReader {
         return obj;
     }
 
-    private Tfra parse_tfra() throws IOException {
-        int version = stream.read();
-
-        stream.skipBytes(3);// flags
-
-        Tfra tfra = new Tfra();
-        tfra.trackId = stream.readInt();
-
-        stream.skipBytes(3);// reserved
-        int bFlags = stream.read();
-        int size_tts = ((bFlags >> 4) & 3) + ((bFlags >> 2) & 3) + (bFlags & 3);
-
-        tfra.entries_time = new int[stream.readInt()];
-
-        for (int i = 0; i < tfra.entries_time.length; i++) {
-            tfra.entries_time[i] = version == 0 ? stream.readInt() : (int) stream.readLong();
-            stream.skipBytes(size_tts + (version == 0 ? 4 : 8));
+    private Elst parse_edts(Box ref) throws IOException {
+        Box b = untilBox(ref, ATOM_ELST);
+        if (b == null) {
+            return null;
         }
 
-        return tfra;
-    }
-
-    private Sidx parse_sidx() throws IOException {
-        int version = stream.read();
+        Elst obj = new Elst();
 
+        boolean v1 = stream.read() == 1;
         stream.skipBytes(3);// flags
 
-        Sidx obj = new Sidx();
-        obj.referenceId = stream.readInt();
-        obj.timescale = stream.readInt();
+        int entryCount = stream.readInt();
+        if (entryCount < 1) {
+            obj.bMediaRate = 0x00010000;// default media rate (1.0)
+            return obj;
+        }
 
-        // earliest presentation entries_time
-        // first offset
-        // reserved
-        stream.skipBytes((2 * (version == 0 ? 4 : 8)) + 2);
+        if (v1) {
+            stream.skipBytes(DataReader.LONG_SIZE);// segment duration
+            obj.MediaTime = stream.readLong();
+            // ignore all remain entries
+            stream.skipBytes((entryCount - 1) * (DataReader.LONG_SIZE * 2));
+        } else {
+            stream.skipBytes(DataReader.INTEGER_SIZE);// segment duration
+            obj.MediaTime = stream.readInt();
+        }
 
-        obj.entries_subsegmentDuration = new int[stream.readShort()];
+        obj.bMediaRate = stream.readInt();
 
-        for (int i = 0; i < obj.entries_subsegmentDuration.length; i++) {
-            // reference type
-            // referenced size
-            stream.skipBytes(4);
-            obj.entries_subsegmentDuration[i] = stream.readInt();// unsigned int
+        return obj;
+    }
 
-            // starts with SAP
-            // SAP type
-            // SAP delta entries_time
-            stream.skipBytes(4);
+    private Minf parse_minf(Box ref) throws IOException {
+        Minf obj = new Minf();
+
+        Box b;
+        while ((b = untilAnyBox(ref)) != null) {
+
+            switch (b.type) {
+                case ATOM_DINF:
+                    obj.dinf = readFullBox(b);
+                    break;
+                case ATOM_STBL:
+                    obj.stbl_stsd = parse_stbl(b);
+                    break;
+                case ATOM_VMHD:
+                case ATOM_SMHD:
+                    obj.$mhd = readFullBox(b);
+                    break;
+
+            }
+            ensure(b);
         }
 
         return obj;
     }
 
-    private Tfra[] parse_mfra(Box ref, int trackCount) throws IOException {
-        ArrayList<Tfra> tmp = new ArrayList<>(trackCount);
-        long limit = ref.offset + ref.size;
+    /**
+     * this only read the "stsd" box inside
+     */
+    private byte[] parse_stbl(Box ref) throws IOException {
+        Box b = untilBox(ref, ATOM_STSD);
 
-        while (stream.position() < limit) {
-            box = readBox();
-
-            if (box.type == ATOM_TFRA) {
-                tmp.add(parse_tfra());
-            }
-
-            ensure(box);
+        if (b == null) {
+            return new byte[0];// this never should happens (missing codec startup data)
         }
 
-        return tmp.toArray(new Tfra[tmp.size()]);
+        return readFullBox(b);
     }
 
     // </editor-fold>
@@ -679,14 +802,7 @@ public class Mp4DashReader {
 
         int type;
         long offset;
-        int size;
-    }
-
-    class Sidx {
-
-        int timescale;
-        int referenceId;
-        int[] entries_subsegmentDuration;
+        long size;
     }
 
     public class Moof {
@@ -711,12 +827,16 @@ public class Mp4DashReader {
         int defaultSampleFlags;
     }
 
-    public class TrunEntry {
+    class TrunEntry {
+
+        int sampleDuration;
+        int sampleSize;
+        int sampleFlags;
+        int sampleCompositionTimeOffset;
+
+        boolean hasCompositionTimeOffset;
+        boolean isKeyframe;
 
-        public int sampleDuration;
-        public int sampleSize;
-        public int sampleFlags;
-        public int sampleCompositionTimeOffset;
     }
 
     public class Trun {
@@ -749,6 +869,31 @@ public class Mp4DashReader {
                 entry.sampleCompositionTimeOffset = buffer.getInt();
             }
 
+            entry.hasCompositionTimeOffset = hasFlag(bFlags, 0x0800);
+            entry.isKeyframe = !hasFlag(entry.sampleFlags, 0x10000);
+
+            return entry;
+        }
+
+        public TrunEntry getAbsoluteEntry(int i, Tfhd header) {
+            TrunEntry entry = getEntry(i);
+
+            if (!hasFlag(bFlags, 0x0100) && hasFlag(header.bFlags, 0x20)) {
+                entry.sampleFlags = header.defaultSampleFlags;
+            }
+
+            if (!hasFlag(bFlags, 0x0200) && hasFlag(header.bFlags, 0x10)) {
+                entry.sampleSize = header.defaultSampleSize;
+            }
+
+            if (!hasFlag(bFlags, 0x0100) && hasFlag(header.bFlags, 0x08)) {
+                entry.sampleDuration = header.defaultSampleDuration;
+            }
+
+            if (i == 0 && hasFlag(bFlags, 0x0004)) {
+                entry.sampleFlags = bFirstSampleFlags;
+            }
+
             return entry;
         }
     }
@@ -768,9 +913,9 @@ public class Mp4DashReader {
     public class Trak {
 
         public Tkhd tkhd;
-        public int mdia_mdhd_timeScale;
+        public Elst edst_elst;
+        public Mdia mdia;
 
-        byte[] mdia;
     }
 
     class Mvhd {
@@ -786,12 +931,6 @@ public class Mp4DashReader {
         Trex[] mvex_trex;
     }
 
-    class Tfra {
-
-        int trackId;
-        int[] entries_time;
-    }
-
     public class Trex {
 
         private int trackId;
@@ -801,6 +940,34 @@ public class Mp4DashReader {
         int defaultSampleFlags;
     }
 
+    public class Elst {
+
+        public long MediaTime;
+        public int bMediaRate;
+    }
+
+    public class Mdia {
+
+        public int mdhd_timeScale;
+        public byte[] mdhd;
+        public Hdlr hdlr;
+        public Minf minf;
+    }
+
+    public class Hdlr {
+
+        public int type;
+        public int subType;
+        public byte[] bReserved;
+    }
+
+    public class Minf {
+
+        public byte[] dinf;
+        public byte[] stbl_stsd;
+        public byte[] $mhd;
+    }
+
     public class Mp4Track {
 
         public TrackKind kind;
@@ -808,10 +975,43 @@ public class Mp4DashReader {
         public Trex trex;
     }
 
-    public class Mp4TrackChunk {
+    public class Mp4DashChunk {
 
         public InputStream data;
         public Moof moof;
+        private int i = 0;
+
+        public TrunEntry getNextSampleInfo() {
+            if (i >= moof.traf.trun.entryCount) {
+                return null;
+            }
+            return moof.traf.trun.getAbsoluteEntry(i++, moof.traf.tfhd);
+        }
+
+        public Mp4DashSample getNextSample() throws IOException {
+            if (data == null) {
+                throw new IllegalStateException("This chunk has info only");
+            }
+            if (i >= moof.traf.trun.entryCount) {
+                return null;
+            }
+
+            Mp4DashSample sample = new Mp4DashSample();
+            sample.info = moof.traf.trun.getAbsoluteEntry(i++, moof.traf.tfhd);
+            sample.data = new byte[sample.info.sampleSize];
+
+            if (data.read(sample.data) != sample.info.sampleSize) {
+                throw new EOFException("EOF reached while reading a sample");
+            }
+
+            return sample;
+        }
+    }
+
+    public class Mp4DashSample {
+
+        public TrunEntry info;
+        public byte[] data;
     }
 //</editor-fold>
 }

app/src/main/java/org/schabi/newpipe/streams/Mp4DashWriter.java

@@ -1,623 +0,0 @@
-package org.schabi.newpipe.streams;
-
-import org.schabi.newpipe.streams.io.SharpStream;
-
-import org.schabi.newpipe.streams.Mp4DashReader.Mp4Track;
-import org.schabi.newpipe.streams.Mp4DashReader.Mp4TrackChunk;
-import org.schabi.newpipe.streams.Mp4DashReader.Trak;
-import org.schabi.newpipe.streams.Mp4DashReader.Trex;
-
-
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.util.ArrayList;
-import java.util.List;
-
-import static org.schabi.newpipe.streams.Mp4DashReader.hasFlag;
-
-/**
- *
- * @author kapodamy
- */
-public class Mp4DashWriter {
-
-    private final static byte DIMENSIONAL_FIVE = 5;
-    private final static byte DIMENSIONAL_TWO = 2;
-    private final static short DEFAULT_TIMESCALE = 1000;
-    private final static int BUFFER_SIZE = 8 * 1024;
-    private final static byte DEFAULT_TREX_SIZE = 32;
-    private final static byte[] TFRA_TTS_DEFAULT = new byte[]{0x01, 0x01, 0x01};
-    private final static int EPOCH_OFFSET = 2082844800;
-
-    private Mp4Track[] infoTracks;
-    private SharpStream[] sourceTracks;
-
-    private Mp4DashReader[] readers;
-    private final long time;
-
-    private boolean done = false;
-    private boolean parsed = false;
-
-    private long written = 0;
-    private ArrayList<ArrayList<Integer>> chunkTimes;
-    private ArrayList<Long> moofOffsets;
-    private ArrayList<Integer> fragSizes;
-
-    public Mp4DashWriter(SharpStream... source) {
-        sourceTracks = source;
-        readers = new Mp4DashReader[sourceTracks.length];
-        infoTracks = new Mp4Track[sourceTracks.length];
-        time = (System.currentTimeMillis() / 1000L) + EPOCH_OFFSET;
-    }
-
-    public Mp4Track[] getTracksFromSource(int sourceIndex) throws IllegalStateException {
-        if (!parsed) {
-            throw new IllegalStateException("All sources must be parsed first");
-        }
-
-        return readers[sourceIndex].getAvailableTracks();
-    }
-
-    public void parseSources() throws IOException, IllegalStateException {
-        if (done) {
-            throw new IllegalStateException("already done");
-        }
-        if (parsed) {
-            throw new IllegalStateException("already parsed");
-        }
-
-        try {
-            for (int i = 0; i < readers.length; i++) {
-                readers[i] = new Mp4DashReader(sourceTracks[i]);
-                readers[i].parse();
-            }
-
-        } finally {
-            parsed = true;
-        }
-    }
-
-    public void selectTracks(int... trackIndex) throws IOException {
-        if (done) {
-            throw new IOException("already done");
-        }
-        if (chunkTimes != null) {
-            throw new IOException("tracks already selected");
-        }
-
-        try {
-            chunkTimes = new ArrayList<>(readers.length);
-            moofOffsets = new ArrayList<>(32);
-            fragSizes = new ArrayList<>(32);
-
-            for (int i = 0; i < readers.length; i++) {
-                infoTracks[i] = readers[i].selectTrack(trackIndex[i]);
-
-                chunkTimes.add(new ArrayList<Integer>(32));
-            }
-
-        } finally {
-            parsed = true;
-        }
-    }
-
-    public long getBytesWritten() {
-        return written;
-    }
-
-    public void build(SharpStream out) throws IOException, RuntimeException {
-        if (done) {
-            throw new RuntimeException("already done");
-        }
-        if (!out.canWrite()) {
-            throw new IOException("the provided output is not writable");
-        }
-
-        long sidxOffsets = -1;
-        int maxFrags = 0;
-
-        for (SharpStream stream : sourceTracks) {
-            if (!stream.canRewind()) {
-                sidxOffsets = -2;// sidx not available
-            }
-        }
-
-        try {
-            dump(make_ftyp(), out);
-            dump(make_moov(), out);
-
-            if (sidxOffsets == -1 && out.canRewind()) {
-                //<editor-fold defaultstate="collapsed" desc="calculate sidx">
-                int reserved = 0;
-                for (Mp4DashReader reader : readers) {
-                    int count = reader.getFragmentsCount();
-                    if (count > maxFrags) {
-                        maxFrags = count;
-                    }
-                    reserved += 12 + calcSidxBodySize(count);
-                }
-                if (maxFrags > 0xFFFF) {
-                    sidxOffsets = -3;// TODO: to many fragments, needs a multi-sidx implementation
-                } else {
-                    sidxOffsets = written;
-                    dump(make_free(reserved), out);
-                }
-                //</editor-fold>
-            }
-            ArrayList<Mp4TrackChunk> chunks = new ArrayList<>(readers.length);
-            chunks.add(null);
-
-            int read;
-            byte[] buffer = new byte[BUFFER_SIZE];
-            int sequenceNumber = 1;
-
-            while (true) {
-                chunks.clear();
-
-                for (int i = 0; i < readers.length; i++) {
-                    Mp4TrackChunk chunk = readers[i].getNextChunk();
-                    if (chunk == null || chunk.moof.traf.trun.chunkSize < 1) {
-                        continue;
-                    }
-                    chunk.moof.traf.tfhd.trackId = i + 1;
-                    chunks.add(chunk);
-
-                    if (sequenceNumber == 1) {
-                        if (chunk.moof.traf.trun.entryCount > 0 && hasFlag(chunk.moof.traf.trun.bFlags, 0x0800)) {
-                            chunkTimes.get(i).add(chunk.moof.traf.trun.getEntry(0).sampleCompositionTimeOffset);
-                        } else {
-                            chunkTimes.get(i).add(0);
-                        }
-                    }
-
-                    chunkTimes.get(i).add(chunk.moof.traf.trun.chunkDuration);
-                }
-
-                if (chunks.size() < 1) {
-                    break;
-                }
-
-                long offset = written;
-                moofOffsets.add(offset);
-
-                dump(make_moof(sequenceNumber++, chunks, offset), out);
-                dump(make_mdat(chunks), out);
-
-                for (Mp4TrackChunk chunk : chunks) {
-                    while ((read = chunk.data.read(buffer)) > 0) {
-                        out.write(buffer, 0, read);
-                        written += read;
-                    }
-                }
-
-                fragSizes.add((int) (written - offset));
-            }
-
-            dump(make_mfra(), out);
-
-            if (sidxOffsets > 0 && moofOffsets.size() == maxFrags) {
-                long len = written;
-
-                out.rewind();
-                out.skip(sidxOffsets);
-
-                written = sidxOffsets;
-                sidxOffsets = moofOffsets.get(0);
-
-                for (int i = 0; i < readers.length; i++) {
-                    dump(make_sidx(i, sidxOffsets - written), out);
-                }
-
-                written = len;
-            }
-        } finally {
-            done = true;
-        }
-    }
-
-    public boolean isDone() {
-        return done;
-    }
-
-    public boolean isParsed() {
-        return parsed;
-    }
-
-    public void close() {
-        done = true;
-        parsed = true;
-
-        for (SharpStream src : sourceTracks) {
-            src.dispose();
-        }
-
-        sourceTracks = null;
-        readers = null;
-        infoTracks = null;
-        moofOffsets = null;
-        chunkTimes = null;
-    }
-
-    // <editor-fold defaultstate="collapsed" desc="Utils">
-    private void dump(byte[][] buffer, SharpStream stream) throws IOException {
-        for (byte[] buff : buffer) {
-            stream.write(buff);
-            written += buff.length;
-        }
-    }
-
-    private byte[][] lengthFor(byte[][] buffer) {
-        int length = 0;
-        for (byte[] buff : buffer) {
-            length += buff.length;
-        }
-
-        ByteBuffer.wrap(buffer[0]).putInt(length);
-
-        return buffer;
-    }
-
-    private int calcSidxBodySize(int entryCount) {
-        return 4 + 4 + 8 + 8 + 4 + (entryCount * 12);
-    }
-    // </editor-fold>
-
-    // <editor-fold defaultstate="collapsed" desc="Box makers">
-    private byte[][] make_moof(int sequence, ArrayList<Mp4TrackChunk> chunks, long referenceOffset) {
-        int pos = 2;
-        TrunExtra[] extra = new TrunExtra[chunks.size()];
-
-        byte[][] buffer = new byte[pos + (extra.length * DIMENSIONAL_FIVE)][];
-        buffer[0] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x6D, 0x6F, 0x6F, 0x66,// info header
-            0x00, 0x00, 0x00, 0x10, 0x6D, 0x66, 0x68, 0x64, 0x00, 0x00, 0x00, 0x00//mfhd
-        };
-        buffer[1] = new byte[4];
-        ByteBuffer.wrap(buffer[1]).putInt(sequence);
-
-        for (int i = 0; i < extra.length; i++) {
-            extra[i] = new TrunExtra();
-            for (byte[] buff : make_traf(chunks.get(i), extra[i], referenceOffset)) {
-                buffer[pos++] = buff;
-            }
-        }
-
-        lengthFor(buffer);
-
-        int offset = 8 + ByteBuffer.wrap(buffer[0]).getInt();
-
-        for (int i = 0; i < extra.length; i++) {
-            extra[i].byteBuffer.putInt(offset);
-            offset += chunks.get(i).moof.traf.trun.chunkSize;
-        }
-
-        return buffer;
-    }
-
-    private byte[][] make_traf(Mp4TrackChunk chunk, TrunExtra extra, long moofOffset) {
-        byte[][] buffer = new byte[DIMENSIONAL_FIVE][];
-        buffer[0] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x74, 0x72, 0x61, 0x66,
-            0x00, 0x00, 0x00, 0x00, 0x74, 0x66, 0x68, 0x64
-        };
-
-        int flags = (chunk.moof.traf.tfhd.bFlags & 0x38) | 0x01;
-        byte tfhdBodySize = 8 + 8;
-        if (hasFlag(flags, 0x08)) {
-            tfhdBodySize += 4;
-        }
-        if (hasFlag(flags, 0x10)) {
-            tfhdBodySize += 4;
-        }
-        if (hasFlag(flags, 0x20)) {
-            tfhdBodySize += 4;
-        }
-        buffer[1] = new byte[tfhdBodySize];
-        ByteBuffer set = ByteBuffer.wrap(buffer[1]);
-        set.position(4);
-        set.putInt(chunk.moof.traf.tfhd.trackId);
-        set.putLong(moofOffset);
-        if (hasFlag(flags, 0x08)) {
-            set.putInt(chunk.moof.traf.tfhd.defaultSampleDuration);
-        }
-        if (hasFlag(flags, 0x10)) {
-            set.putInt(chunk.moof.traf.tfhd.defaultSampleSize);
-        }
-        if (hasFlag(flags, 0x20)) {
-            set.putInt(chunk.moof.traf.tfhd.defaultSampleFlags);
-        }
-        set.putInt(0, flags);
-        ByteBuffer.wrap(buffer[0]).putInt(8, 8 + tfhdBodySize);
-
-        buffer[2] = new byte[]{
-            0x00, 0x00, 0x00, 0x14,
-            0x74, 0x66, 0x64, 0x74,
-            0x01, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00
-        };
-
-        ByteBuffer.wrap(buffer[2]).putLong(12, chunk.moof.traf.tfdt);
-
-        buffer[3] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x74, 0x72, 0x75, 0x6E,
-            0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00
-        };
-
-        buffer[4] = chunk.moof.traf.trun.bEntries;
-
-        lengthFor(buffer);
-
-        set = ByteBuffer.wrap(buffer[3]);
-        set.putInt(buffer[3].length + buffer[4].length);
-        set.position(8);
-        set.putInt((chunk.moof.traf.trun.bFlags | 0x01) & 0x0F01);
-        set.putInt(chunk.moof.traf.trun.entryCount);
-        extra.byteBuffer = set;
-
-        return buffer;
-    }
-
-    private byte[][] make_mdat(ArrayList<Mp4TrackChunk> chunks) {
-        byte[][] buffer = new byte[][]{
-            {
-                0x00, 0x00, 0x00, 0x00, 0x6D, 0x64, 0x61, 0x74
-            }
-        };
-
-        int length = 0;
-
-        for (Mp4TrackChunk chunk : chunks) {
-            length += chunk.moof.traf.trun.chunkSize;
-        }
-
-        ByteBuffer.wrap(buffer[0]).putInt(length + 8);
-
-        return buffer;
-    }
-
-    private byte[][] make_ftyp() {
-        return new byte[][]{
-            {
-                0x00, 0x00, 0x00, 0x20, 0x66, 0x74, 0x79, 0x70, 0x64, 0x61, 0x73, 0x68, 0x00, 0x00, 0x00, 0x00,
-                0x6D, 0x70, 0x34, 0x31, 0x69, 0x73, 0x6F, 0x6D, 0x69, 0x73, 0x6F, 0x36, 0x69, 0x73, 0x6F, 0x32
-            }
-        };
-    }
-
-    private byte[][] make_mvhd() {
-        byte[][] buffer = new byte[DIMENSIONAL_FIVE][];
-
-        buffer[0] = new byte[]{
-            0x00, 0x00, 0x00, 0x78, 0x6D, 0x76, 0x68, 0x64, 0x01, 0x00, 0x00, 0x00
-        };
-        buffer[1] = new byte[28];
-        buffer[2] = new byte[]{
-            0x00, 0x01, 0x00, 0x00, 0x01, 0x00,// default volume and rate
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// reserved values
-            // default matrix
-            0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x40, 0x00, 0x00, 0x00
-        };
-        buffer[3] = new byte[24];// predefined
-        buffer[4] = ByteBuffer.allocate(4).putInt(infoTracks.length + 1).array();
-
-        long longestTrack = 0;
-
-        for (Mp4Track track : infoTracks) {
-            long tmp = (long) ((track.trak.tkhd.duration / (double) track.trak.mdia_mdhd_timeScale) * DEFAULT_TIMESCALE);
-            if (tmp > longestTrack) {
-                longestTrack = tmp;
-            }
-        }
-
-        ByteBuffer.wrap(buffer[1])
-                .putLong(time)
-                .putLong(time)
-                .putInt(DEFAULT_TIMESCALE)
-                .putLong(longestTrack);
-
-        return buffer;
-    }
-
-    private byte[][] make_trak(int trackId, Trak trak) throws RuntimeException {
-        if (trak.tkhd.matrix.length != 36) {
-            throw new RuntimeException("bad track matrix length (expected 36)");
-        }
-
-        byte[][] buffer = new byte[DIMENSIONAL_FIVE][];
-
-        buffer[0] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x74, 0x72, 0x61, 0x6B,// trak header
-            0x00, 0x00, 0x00, 0x68, 0x74, 0x6B, 0x68, 0x64, 0x01, 0x00, 0x00, 0x03 // tkhd header
-        };
-        buffer[1] = new byte[48];
-        buffer[2] = trak.tkhd.matrix;
-        buffer[3] = new byte[8];
-        buffer[4] = trak.mdia;
-
-        ByteBuffer set = ByteBuffer.wrap(buffer[1]);
-        set.putLong(time);
-        set.putLong(time);
-        set.putInt(trackId);
-        set.position(24);
-        set.putLong(trak.tkhd.duration);
-        set.position(40);
-        set.putShort(trak.tkhd.bLayer);
-        set.putShort(trak.tkhd.bAlternateGroup);
-        set.putShort(trak.tkhd.bVolume);
-
-        ByteBuffer.wrap(buffer[3])
-                .putInt(trak.tkhd.bWidth)
-                .putInt(trak.tkhd.bHeight);
-
-        return lengthFor(buffer);
-    }
-
-    private byte[][] make_moov() throws RuntimeException {
-        int pos = 1;
-        byte[][] buffer = new byte[2 + (DIMENSIONAL_TWO * infoTracks.length) + (DIMENSIONAL_FIVE * infoTracks.length) + DIMENSIONAL_FIVE + 1][];
-
-        buffer[0] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x6D, 0x6F, 0x6F, 0x76
-        };
-
-        for (byte[] buff : make_mvhd()) {
-            buffer[pos++] = buff;
-        }
-
-        for (int i = 0; i < infoTracks.length; i++) {
-            for (byte[] buff : make_trak(i + 1, infoTracks[i].trak)) {
-                buffer[pos++] = buff;
-            }
-        }
-
-        buffer[pos] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x6D, 0x76, 0x65, 0x78
-        };
-
-        ByteBuffer.wrap(buffer[pos++]).putInt((infoTracks.length * DEFAULT_TREX_SIZE) + 8);
-
-        for (int i = 0; i < infoTracks.length; i++) {
-            for (byte[] buff : make_trex(i + 1, infoTracks[i].trex)) {
-                buffer[pos++] = buff;
-            }
-        }
-
-        // default udta
-        buffer[pos] = new byte[]{
-            0x00, 0x00, 0x00, 0x5C, 0x75, 0x64, 0x74, 0x61, 0x00, 0x00, 0x00, 0x54, 0x6D, 0x65, 0x74, 0x61,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x68, 0x64, 0x6C, 0x72, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x6D, 0x64, 0x69, 0x72, 0x61, 0x70, 0x70, 0x6C, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x27, 0x69, 0x6C, 0x73, 0x74, 0x00, 0x00, 0x00,
-            0x1F, (byte) 0xA9, 0x63, 0x6D, 0x74, 0x00, 0x00, 0x00, 0x17, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00,
-            0x01, 0x00, 0x00, 0x00, 0x00,
-            0x4E, 0x65, 0x77, 0x50, 0x69, 0x70, 0x65// "NewPipe" binary string
-        };
-
-        return lengthFor(buffer);
-    }
-
-    private byte[][] make_trex(int trackId, Trex trex) {
-        byte[][] buffer = new byte[][]{
-            {
-                0x00, 0x00, 0x00, 0x20, 0x74, 0x72, 0x65, 0x78, 0x00, 0x00, 0x00, 0x00
-            },
-            new byte[20]
-        };
-
-        ByteBuffer.wrap(buffer[1])
-                .putInt(trackId)
-                .putInt(trex.defaultSampleDescriptionIndex)
-                .putInt(trex.defaultSampleDuration)
-                .putInt(trex.defaultSampleSize)
-                .putInt(trex.defaultSampleFlags);
-
-        return buffer;
-    }
-
-    private byte[][] make_tfra(int trackId, List<Integer> times, List<Long> moofOffsets) {
-        int entryCount = times.size() - 1;
-        byte[][] buffer = new byte[DIMENSIONAL_TWO][];
-        buffer[0] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x74, 0x66, 0x72, 0x61, 0x01, 0x00, 0x00, 0x00
-        };
-        buffer[1] = new byte[12 + ((16 + TFRA_TTS_DEFAULT.length) * entryCount)];
-
-        ByteBuffer set = ByteBuffer.wrap(buffer[1]);
-        set.putInt(trackId);
-        set.position(8);
-        set.putInt(entryCount);
-
-        long decodeTime = 0;
-
-        for (int i = 0; i < entryCount; i++) {
-            decodeTime += times.get(i);
-            set.putLong(decodeTime);
-            set.putLong(moofOffsets.get(i));
-            set.put(TFRA_TTS_DEFAULT);// default values: traf number/trun number/sample number
-        }
-
-        return lengthFor(buffer);
-    }
-
-    private byte[][] make_mfra() {
-        byte[][] buffer = new byte[2 + (DIMENSIONAL_TWO * infoTracks.length)][];
-        buffer[0] = new byte[]{
-            0x00, 0x00, 0x00, 0x00, 0x6D, 0x66, 0x72, 0x61
-        };
-        int pos = 1;
-
-        for (int i = 0; i < infoTracks.length; i++) {
-            for (byte[] buff : make_tfra(i + 1, chunkTimes.get(i), moofOffsets)) {
-                buffer[pos++] = buff;
-            }
-        }
-
-        buffer[pos] = new byte[]{// mfro
-            0x00, 0x00, 0x00, 0x10, 0x6D, 0x66, 0x72, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-        };
-
-        lengthFor(buffer);
-
-        ByteBuffer set = ByteBuffer.wrap(buffer[pos]);
-        set.position(12);
-        set.put(buffer[0], 0, 4);
-
-        return buffer;
-
-    }
-
-    private byte[][] make_sidx(int internalTrackId, long firstOffset) {
-        List<Integer> times = chunkTimes.get(internalTrackId);
-        int count = times.size() - 1;// the first item is ignored (composition time)
-
-        if (count > 65535) {
-            throw new OutOfMemoryError("to many fragments. sidx limit is 65535, found " + String.valueOf(count));
-        }
-
-        byte[][] buffer = new byte[][]{
-            new byte[]{
-                0x00, 0x00, 0x00, 0x00, 0x73, 0x69, 0x64, 0x78, 0x01, 0x00, 0x00, 0x00
-            },
-            new byte[calcSidxBodySize(count)]
-        };
-
-        lengthFor(buffer);
-
-        ByteBuffer set = ByteBuffer.wrap(buffer[1]);
-        set.putInt(internalTrackId + 1);
-        set.putInt(infoTracks[internalTrackId].trak.mdia_mdhd_timeScale);
-        set.putLong(0);
-        set.putLong(firstOffset - ByteBuffer.wrap(buffer[0]).getInt());
-        set.putInt(0xFFFF & count);// unsigned
-
-        int i = 0;
-        while (i < count) {
-            set.putInt(fragSizes.get(i) & 0x7fffffff);// default reference type is 0
-            set.putInt(times.get(i + 1));
-            set.putInt(0x90000000);// default SAP settings
-            i++;
-        }
-
-        return buffer;
-    }
-
-    private byte[][] make_free(int totalSize) {
-        return lengthFor(new byte[][]{
-            new byte[]{0x00, 0x00, 0x00, 0x00, 0x66, 0x72, 0x65, 0x65},
-            new byte[totalSize - 8]// this is waste of RAM
-        });
-
-    }
-
-//</editor-fold>
-
-    class TrunExtra {
-
-        ByteBuffer byteBuffer;
-    }
-}

app/src/main/java/org/schabi/newpipe/streams/Mp4FromDashWriter.java

@@ -0,0 +1,810 @@
+package org.schabi.newpipe.streams;
+
+import org.schabi.newpipe.streams.Mp4DashReader.Hdlr;
+import org.schabi.newpipe.streams.Mp4DashReader.Mdia;
+import org.schabi.newpipe.streams.Mp4DashReader.Mp4DashChunk;
+import org.schabi.newpipe.streams.Mp4DashReader.Mp4DashSample;
+import org.schabi.newpipe.streams.Mp4DashReader.Mp4Track;
+import org.schabi.newpipe.streams.Mp4DashReader.TrunEntry;
+import org.schabi.newpipe.streams.io.SharpStream;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+/**
+ * @author kapodamy
+ */
+public class Mp4FromDashWriter {
+
+    private final static int EPOCH_OFFSET = 2082844800;
+    private final static short DEFAULT_TIMESCALE = 1000;
+    private final static byte SAMPLES_PER_CHUNK_INIT = 2;
+    private final static byte SAMPLES_PER_CHUNK = 6;// ffmpeg uses 2, basic uses 1 (with 60fps uses 21 or 22). NewPipe will use 6
+    private final static long THRESHOLD_FOR_CO64 = 0xFFFEFFFFL;// near 3.999 GiB
+    private final static int THRESHOLD_MOOV_LENGTH = (256 * 1024) + (2048 * 1024); // 2.2 MiB enough for: 1080p 60fps 00h35m00s
+
+    private final long time;
+
+    private ByteBuffer auxBuffer;
+    private SharpStream outStream;
+
+    private long lastWriteOffset = -1;
+    private long writeOffset;
+
+    private boolean moovSimulation = true;
+
+    private boolean done = false;
+    private boolean parsed = false;
+
+    private Mp4Track[] tracks;
+    private SharpStream[] sourceTracks;
+
+    private Mp4DashReader[] readers;
+    private Mp4DashChunk[] readersChunks;
+
+    private int overrideMainBrand = 0x00;
+
+    public Mp4FromDashWriter(SharpStream... sources) throws IOException {
+        for (SharpStream src : sources) {
+            if (!src.canRewind() && !src.canRead()) {
+                throw new IOException("All sources must be readable and allow rewind");
+            }
+        }
+
+        sourceTracks = sources;
+        readers = new Mp4DashReader[sourceTracks.length];
+        readersChunks = new Mp4DashChunk[readers.length];
+        time = (System.currentTimeMillis() / 1000L) + EPOCH_OFFSET;
+    }
+
+    public Mp4Track[] getTracksFromSource(int sourceIndex) throws IllegalStateException {
+        if (!parsed) {
+            throw new IllegalStateException("All sources must be parsed first");
+        }
+
+        return readers[sourceIndex].getAvailableTracks();
+    }
+
+    public void parseSources() throws IOException, IllegalStateException {
+        if (done) {
+            throw new IllegalStateException("already done");
+        }
+        if (parsed) {
+            throw new IllegalStateException("already parsed");
+        }
+
+        try {
+            for (int i = 0; i < readers.length; i++) {
+                readers[i] = new Mp4DashReader(sourceTracks[i]);
+                readers[i].parse();
+            }
+
+        } finally {
+            parsed = true;
+        }
+    }
+
+    public void selectTracks(int... trackIndex) throws IOException {
+        if (done) {
+            throw new IOException("already done");
+        }
+        if (tracks != null) {
+            throw new IOException("tracks already selected");
+        }
+
+        try {
+            tracks = new Mp4Track[readers.length];
+            for (int i = 0; i < readers.length; i++) {
+                tracks[i] = readers[i].selectTrack(trackIndex[i]);
+            }
+        } finally {
+            parsed = true;
+        }
+    }
+
+    public void setMainBrand(int brandId) {
+        overrideMainBrand = brandId;
+    }
+
+    public boolean isDone() {
+        return done;
+    }
+
+    public boolean isParsed() {
+        return parsed;
+    }
+
+    public void close() throws IOException {
+        done = true;
+        parsed = true;
+
+        for (SharpStream src : sourceTracks) {
+            src.close();
+        }
+
+        tracks = null;
+        sourceTracks = null;
+
+        readers = null;
+        readersChunks = null;
+
+        auxBuffer = null;
+        outStream = null;
+    }
+
+    public void build(SharpStream output) throws IOException {
+        if (done) {
+            throw new RuntimeException("already done");
+        }
+        if (!output.canWrite()) {
+            throw new IOException("the provided output is not writable");
+        }
+
+        //
+        // WARNING: the muxer requires at least 8 samples of every track
+        //          not allowed for very short tracks (less than 0.5 seconds)
+        //
+        outStream = output;
+        int read = 8;// mdat box header size
+        long totalSampleSize = 0;
+        int[] sampleExtra = new int[readers.length];
+        int[] defaultMediaTime = new int[readers.length];
+        int[] defaultSampleDuration = new int[readers.length];
+        int[] sampleCount = new int[readers.length];
+
+        TablesInfo[] tablesInfo = new TablesInfo[tracks.length];
+        for (int i = 0; i < tablesInfo.length; i++) {
+            tablesInfo[i] = new TablesInfo();
+        }
+
+        //<editor-fold defaultstate="expanded" desc="calculate stbl sample tables size and required moov values">
+        for (int i = 0; i < readers.length; i++) {
+            int samplesSize = 0;
+            int sampleSizeChanges = 0;
+            int compositionOffsetLast = -1;
+
+            Mp4DashChunk chunk;
+            while ((chunk = readers[i].getNextChunk(true)) != null) {
+
+                if (defaultMediaTime[i] < 1 && chunk.moof.traf.tfhd.defaultSampleDuration > 0) {
+                    defaultMediaTime[i] = chunk.moof.traf.tfhd.defaultSampleDuration;
+                }
+
+                read += chunk.moof.traf.trun.chunkSize;
+                sampleExtra[i] += chunk.moof.traf.trun.chunkDuration;// calculate track duration
+
+                TrunEntry info;
+                while ((info = chunk.getNextSampleInfo()) != null) {
+                    if (info.isKeyframe) {
+                        tablesInfo[i].stss++;
+                    }
+
+                    if (info.sampleDuration > defaultSampleDuration[i]) {
+                        defaultSampleDuration[i] = info.sampleDuration;
+                    }
+
+                    tablesInfo[i].stsz++;
+                    if (samplesSize != info.sampleSize) {
+                        samplesSize = info.sampleSize;
+                        sampleSizeChanges++;
+                    }
+
+                    if (info.hasCompositionTimeOffset) {
+                        if (info.sampleCompositionTimeOffset != compositionOffsetLast) {
+                            tablesInfo[i].ctts++;
+                            compositionOffsetLast = info.sampleCompositionTimeOffset;
+                        }
+                    }
+
+                    totalSampleSize += info.sampleSize;
+                }
+            }
+
+            if (defaultMediaTime[i] < 1) {
+                defaultMediaTime[i] = defaultSampleDuration[i];
+            }
+
+            readers[i].rewind();
+
+            int tmp = tablesInfo[i].stsz - SAMPLES_PER_CHUNK_INIT;
+            tablesInfo[i].stco = (tmp / SAMPLES_PER_CHUNK) + 1;// +1 for samples in first chunk
+
+            tmp = tmp % SAMPLES_PER_CHUNK;
+            if (tmp == 0) {
+                tablesInfo[i].stsc = 2;// first chunk (init) and succesive chunks
+                tablesInfo[i].stsc_bEntries = new int[]{
+                        1, SAMPLES_PER_CHUNK_INIT, 1,
+                        2, SAMPLES_PER_CHUNK, 1
+                };
+            } else {
+                tablesInfo[i].stsc = 3;// first chunk (init) and succesive chunks and remain chunk
+                tablesInfo[i].stsc_bEntries = new int[]{
+                        1, SAMPLES_PER_CHUNK_INIT, 1,
+                        2, SAMPLES_PER_CHUNK, 1,
+                        tablesInfo[i].stco + 1, tmp, 1
+                };
+                tablesInfo[i].stco++;
+            }
+
+            sampleCount[i] = tablesInfo[i].stsz;
+
+            if (sampleSizeChanges == 1) {
+                tablesInfo[i].stsz = 0;
+                tablesInfo[i].stsz_default = samplesSize;
+            } else {
+                tablesInfo[i].stsz_default = 0;
+            }
+
+            if (tablesInfo[i].stss == tablesInfo[i].stsz) {
+                tablesInfo[i].stss = -1;// for audio tracks (all samples are keyframes)
+            }
+
+            // ensure track duration
+            if (tracks[i].trak.tkhd.duration < 1) {
+                tracks[i].trak.tkhd.duration = sampleExtra[i];// this never should happen
+            }
+        }
+        //</editor-fold>
+
+        boolean is64 = read > THRESHOLD_FOR_CO64;
+
+        // calculate the moov size;
+        int auxSize = make_moov(defaultMediaTime, tablesInfo, is64);
+
+        if (auxSize < THRESHOLD_MOOV_LENGTH) {
+            auxBuffer = ByteBuffer.allocate(auxSize);// cache moov in the memory
+        }
+
+        moovSimulation = false;
+        writeOffset = 0;
+
+        final int ftyp_size = make_ftyp();
+
+        // reserve moov space in the output stream
+        /*if (outStream.canSetLength()) {
+            long length = writeOffset + auxSize;
+            outStream.setLength(length);
+            outSeek(length);
+        } else {*/
+        if (auxSize > 0) {
+            int length = auxSize;
+            byte[] buffer = new byte[8 * 1024];// 8 KiB
+            while (length > 0) {
+                int count = Math.min(length, buffer.length);
+                outWrite(buffer, 0, count);
+                length -= count;
+            }
+        }
+
+        if (auxBuffer == null) {
+            outSeek(ftyp_size);
+        }
+
+        // tablesInfo contais row counts
+        // and after returning from make_moov() will contain table offsets
+        make_moov(defaultMediaTime, tablesInfo, is64);
+
+        // write tables: stts stsc
+        // reset for ctts table: sampleCount sampleExtra
+        for (int i = 0; i < readers.length; i++) {
+            writeEntryArray(tablesInfo[i].stts, 2, sampleCount[i], defaultSampleDuration[i]);
+            writeEntryArray(tablesInfo[i].stsc, tablesInfo[i].stsc_bEntries.length, tablesInfo[i].stsc_bEntries);
+            tablesInfo[i].stsc_bEntries = null;
+            if (tablesInfo[i].ctts > 0) {
+                sampleCount[i] = 1;// index is not base zero
+                sampleExtra[i] = -1;
+            }
+        }
+
+        if (auxBuffer == null) {
+            outRestore();
+        }
+
+        outWrite(make_mdat(totalSampleSize, is64));
+
+        int[] sampleIndex = new int[readers.length];
+        int[] sizes = new int[SAMPLES_PER_CHUNK];
+        int[] sync = new int[SAMPLES_PER_CHUNK];
+
+        int written = readers.length;
+        while (written > 0) {
+            written = 0;
+
+            for (int i = 0; i < readers.length; i++) {
+                if (sampleIndex[i] < 0) {
+                    continue;// track is done
+                }
+
+                long chunkOffset = writeOffset;
+                int syncCount = 0;
+                int limit = sampleIndex[i] == 0 ? SAMPLES_PER_CHUNK_INIT : SAMPLES_PER_CHUNK;
+
+                int j = 0;
+                for (; j < limit; j++) {
+                    Mp4DashSample sample = getNextSample(i);
+
+                    if (sample == null) {
+                        if (tablesInfo[i].ctts > 0 && sampleExtra[i] >= 0) {
+                            writeEntryArray(tablesInfo[i].ctts, 1, sampleCount[i], sampleExtra[i]);// flush last entries
+                        }
+                        sampleIndex[i] = -1;
+                        break;
+                    }
+
+                    sampleIndex[i]++;
+
+                    if (tablesInfo[i].ctts > 0) {
+                        if (sample.info.sampleCompositionTimeOffset == sampleExtra[i]) {
+                            sampleCount[i]++;
+                        } else {
+                            if (sampleExtra[i] >= 0) {
+                                tablesInfo[i].ctts = writeEntryArray(tablesInfo[i].ctts, 2, sampleCount[i], sampleExtra[i]);
+                                outRestore();
+                            }
+                            sampleCount[i] = 1;
+                            sampleExtra[i] = sample.info.sampleCompositionTimeOffset;
+                        }
+                    }
+
+                    if (tablesInfo[i].stss > 0 && sample.info.isKeyframe) {
+                        sync[syncCount++] = sampleIndex[i];
+                    }
+
+                    if (tablesInfo[i].stsz > 0) {
+                        sizes[j] = sample.data.length;
+                    }
+
+                    outWrite(sample.data, 0, sample.data.length);
+                }
+
+                if (j > 0) {
+                    written++;
+
+                    if (tablesInfo[i].stsz > 0) {
+                        tablesInfo[i].stsz = writeEntryArray(tablesInfo[i].stsz, j, sizes);
+                    }
+
+                    if (syncCount > 0) {
+                        tablesInfo[i].stss = writeEntryArray(tablesInfo[i].stss, syncCount, sync);
+                    }
+
+                    if (is64) {
+                        tablesInfo[i].stco = writeEntry64(tablesInfo[i].stco, chunkOffset);
+                    } else {
+                        tablesInfo[i].stco = writeEntryArray(tablesInfo[i].stco, 1, (int) chunkOffset);
+                    }
+
+                    outRestore();
+                }
+            }
+        }
+
+        if (auxBuffer != null) {
+            // dump moov
+            outSeek(ftyp_size);
+            outStream.write(auxBuffer.array(), 0, auxBuffer.capacity());
+            auxBuffer = null;
+        }
+    }
+
+    private Mp4DashSample getNextSample(int track) throws IOException {
+        if (readersChunks[track] == null) {
+            readersChunks[track] = readers[track].getNextChunk(false);
+            if (readersChunks[track] == null) {
+                return null;// EOF reached
+            }
+        }
+
+        Mp4DashSample sample = readersChunks[track].getNextSample();
+        if (sample == null) {
+            readersChunks[track] = null;
+            return getNextSample(track);
+        } else {
+            return sample;
+        }
+    }
+
+    // <editor-fold defaultstate="expanded" desc="Stbl handling">
+    private int writeEntry64(int offset, long value) throws IOException {
+        outBackup();
+
+        auxSeek(offset);
+        auxWrite(ByteBuffer.allocate(8).putLong(value).array());
+
+        return offset + 8;
+    }
+
+    private int writeEntryArray(int offset, int count, int... values) throws IOException {
+        outBackup();
+
+        auxSeek(offset);
+
+        int size = count * 4;
+        ByteBuffer buffer = ByteBuffer.allocate(size);
+
+        for (int i = 0; i < count; i++) {
+            buffer.putInt(values[i]);
+        }
+
+        auxWrite(buffer.array());
+
+        return offset + size;
+    }
+
+    private void outBackup() {
+        if (auxBuffer == null && lastWriteOffset < 0) {
+            lastWriteOffset = writeOffset;
+        }
+    }
+
+    /**
+     * Restore to the previous position before the first call to writeEntry64()
+     * or writeEntryArray() methods.
+     */
+    private void outRestore() throws IOException {
+        if (lastWriteOffset > 0) {
+            outSeek(lastWriteOffset);
+            lastWriteOffset = -1;
+        }
+    }
+    // </editor-fold>
+
+    // <editor-fold defaultstate="expanded" desc="Utils">
+    private void outWrite(byte[] buffer) throws IOException {
+        outWrite(buffer, 0, buffer.length);
+    }
+
+    private void outWrite(byte[] buffer, int offset, int count) throws IOException {
+        writeOffset += count;
+        outStream.write(buffer, offset, count);
+    }
+
+    private void outSeek(long offset) throws IOException {
+        if (outStream.canSeek()) {
+            outStream.seek(offset);
+            writeOffset = offset;
+        } else if (outStream.canRewind()) {
+            outStream.rewind();
+            writeOffset = 0;
+            outSkip(offset);
+        } else {
+            throw new IOException("cannot seek or rewind the output stream");
+        }
+    }
+
+    private void outSkip(long amount) throws IOException {
+        outStream.skip(amount);
+        writeOffset += amount;
+    }
+
+    private int lengthFor(int offset) throws IOException {
+        int size = auxOffset() - offset;
+
+        if (moovSimulation) {
+            return size;
+        }
+
+        auxSeek(offset);
+        auxWrite(size);
+        auxSkip(size - 4);
+
+        return size;
+    }
+
+    private int make(int type, int extra, int columns, int rows) throws IOException {
+        final byte base = 16;
+        int size = columns * rows * 4;
+        int total = size + base;
+        int offset = auxOffset();
+
+        if (extra >= 0) {
+            total += 4;
+        }
+
+        auxWrite(ByteBuffer.allocate(12)
+                .putInt(total)
+                .putInt(type)
+                .putInt(0x00)// default version & flags
+                .array()
+        );
+
+        if (extra >= 0) {
+            //size += 4;// commented for auxiliar buffer !!!
+            offset += 4;
+            auxWrite(extra);
+        }
+
+        auxWrite(rows);
+        auxSkip(size);
+
+        return offset + base;
+    }
+
+    private void auxWrite(int value) throws IOException {
+        auxWrite(ByteBuffer.allocate(4)
+                .putInt(value)
+                .array()
+        );
+    }
+
+    private void auxWrite(byte[] buffer) throws IOException {
+        if (moovSimulation) {
+            writeOffset += buffer.length;
+        } else if (auxBuffer == null) {
+            outWrite(buffer, 0, buffer.length);
+        } else {
+            auxBuffer.put(buffer);
+        }
+    }
+
+    private void auxSeek(int offset) throws IOException {
+        if (moovSimulation) {
+            writeOffset = offset;
+        } else if (auxBuffer == null) {
+            outSeek(offset);
+        } else {
+            auxBuffer.position(offset);
+        }
+    }
+
+    private void auxSkip(int amount) throws IOException {
+        if (moovSimulation) {
+            writeOffset += amount;
+        } else if (auxBuffer == null) {
+            outSkip(amount);
+        } else {
+            auxBuffer.position(auxBuffer.position() + amount);
+        }
+    }
+
+    private int auxOffset() {
+        return auxBuffer == null ? (int) writeOffset : auxBuffer.position();
+    }
+    // </editor-fold>
+
+    // <editor-fold defaultstate="expanded" desc="Box makers">
+    private int make_ftyp() throws IOException {
+        byte[] buffer = new byte[]{
+                0x00, 0x00, 0x00, 0x1C, 0x66, 0x74, 0x79, 0x70,// ftyp
+                0x6D, 0x70, 0x34, 0x32,// mayor brand (mp42)
+                0x00, 0x00, 0x02, 0x00,// default minor version (512)
+                0x6D, 0x70, 0x34, 0x31, 0x69, 0x73, 0x6F, 0x6D, 0x69, 0x73, 0x6F, 0x32// compatible brands: mp41 isom iso2
+        };
+
+        if (overrideMainBrand != 0)
+            ByteBuffer.wrap(buffer).putInt(8, overrideMainBrand);
+
+        outWrite(buffer);
+
+        return buffer.length;
+    }
+
+    private byte[] make_mdat(long refSize, boolean is64) {
+        if (is64) {
+            refSize += 16;
+        } else {
+            refSize += 8;
+        }
+
+        ByteBuffer buffer = ByteBuffer.allocate(is64 ? 16 : 8)
+                .putInt(is64 ? 0x01 : (int) refSize)
+                .putInt(0x6D646174);// mdat
+
+        if (is64) {
+            buffer.putLong(refSize);
+        }
+
+        return buffer.array();
+    }
+
+    private void make_mvhd(long longestTrack) throws IOException {
+        auxWrite(new byte[]{
+                0x00, 0x00, 0x00, 0x78, 0x6D, 0x76, 0x68, 0x64, 0x01, 0x00, 0x00, 0x00
+        });
+        auxWrite(ByteBuffer.allocate(28)
+                .putLong(time)
+                .putLong(time)
+                .putInt(DEFAULT_TIMESCALE)
+                .putLong(longestTrack)
+                .array()
+        );
+
+        auxWrite(new byte[]{
+                0x00, 0x01, 0x00, 0x00, 0x01, 0x00,// default volume and rate
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// reserved values
+                // default matrix
+                0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                0x40, 0x00, 0x00, 0x00
+        });
+        auxWrite(new byte[24]);// predefined
+        auxWrite(ByteBuffer.allocate(4)
+                .putInt(tracks.length + 1)
+                .array()
+        );
+    }
+
+    private int make_moov(int[] defaultMediaTime, TablesInfo[] tablesInfo, boolean is64) throws RuntimeException, IOException {
+        int start = auxOffset();
+
+        auxWrite(new byte[]{
+                0x00, 0x00, 0x00, 0x00, 0x6D, 0x6F, 0x6F, 0x76
+        });
+
+        long longestTrack = 0;
+        long[] durations = new long[tracks.length];
+
+        for (int i = 0; i < durations.length; i++) {
+            durations[i] = (long) Math.ceil(
+                    ((double) tracks[i].trak.tkhd.duration / tracks[i].trak.mdia.mdhd_timeScale) * DEFAULT_TIMESCALE
+            );
+
+            if (durations[i] > longestTrack) {
+                longestTrack = durations[i];
+            }
+        }
+
+        make_mvhd(longestTrack);
+
+        for (int i = 0; i < tracks.length; i++) {
+            if (tracks[i].trak.tkhd.matrix.length != 36) {
+                throw new RuntimeException("bad track matrix length (expected 36) in track n°" + i);
+            }
+            make_trak(i, durations[i], defaultMediaTime[i], tablesInfo[i], is64);
+        }
+
+        // udta/meta/ilst/©too
+        auxWrite(new byte[]{
+                0x00, 0x00, 0x00, 0x5C, 0x75, 0x64, 0x74, 0x61, 0x00, 0x00, 0x00, 0x54, 0x6D, 0x65, 0x74, 0x61,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x68, 0x64, 0x6C, 0x72, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x6D, 0x64, 0x69, 0x72, 0x61, 0x70, 0x70, 0x6C, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x27, 0x69, 0x6C, 0x73, 0x74, 0x00, 0x00, 0x00,
+                0x1F, (byte) 0xA9, 0x74, 0x6F, 0x6F, 0x00, 0x00, 0x00, 0x17, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00,
+                0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
+                0x4E, 0x65, 0x77, 0x50, 0x69, 0x70, 0x65// "NewPipe" binary string
+        });
+
+        return lengthFor(start);
+    }
+
+    private void make_trak(int index, long duration, int defaultMediaTime, TablesInfo tables, boolean is64) throws IOException {
+        int start = auxOffset();
+
+        auxWrite(new byte[]{
+                0x00, 0x00, 0x00, 0x00, 0x74, 0x72, 0x61, 0x6B,// trak header
+                0x00, 0x00, 0x00, 0x68, 0x74, 0x6B, 0x68, 0x64, 0x01, 0x00, 0x00, 0x03 // tkhd header
+        });
+
+        ByteBuffer buffer = ByteBuffer.allocate(48);
+        buffer.putLong(time);
+        buffer.putLong(time);
+        buffer.putInt(index + 1);
+        buffer.position(24);
+        buffer.putLong(duration);
+        buffer.position(40);
+        buffer.putShort(tracks[index].trak.tkhd.bLayer);
+        buffer.putShort(tracks[index].trak.tkhd.bAlternateGroup);
+        buffer.putShort(tracks[index].trak.tkhd.bVolume);
+        auxWrite(buffer.array());
+
+        auxWrite(tracks[index].trak.tkhd.matrix);
+        auxWrite(ByteBuffer.allocate(8)
+                .putInt(tracks[index].trak.tkhd.bWidth)
+                .putInt(tracks[index].trak.tkhd.bHeight)
+                .array()
+        );
+
+        auxWrite(new byte[]{
+                0x00, 0x00, 0x00, 0x24, 0x65, 0x64, 0x74, 0x73,// edts header
+                0x00, 0x00, 0x00, 0x1C, 0x65, 0x6C, 0x73, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01// elst header
+        });
+
+        int bMediaRate;
+        int mediaTime;
+
+        if (tracks[index].trak.edst_elst == null) {
+            // is a audio track ¿is edst/elst opcional for audio tracks?
+            mediaTime = 0x00;// ffmpeg set this value as zero, instead of defaultMediaTime
+            bMediaRate = 0x00010000;
+        } else {
+            mediaTime = (int) tracks[index].trak.edst_elst.MediaTime;
+            bMediaRate = tracks[index].trak.edst_elst.bMediaRate;
+        }
+
+        auxWrite(ByteBuffer
+                .allocate(12)
+                .putInt((int) duration)
+                .putInt(mediaTime)
+                .putInt(bMediaRate)
+                .array()
+        );
+
+        make_mdia(tracks[index].trak.mdia, tables, is64);
+
+        lengthFor(start);
+    }
+
+    private void make_mdia(Mdia mdia, TablesInfo tablesInfo, boolean is64) throws IOException {
+
+        int start_mdia = auxOffset();
+        auxWrite(new byte[]{0x00, 0x00, 0x00, 0x00, 0x6D, 0x64, 0x69, 0x61});// mdia
+        auxWrite(mdia.mdhd);
+        auxWrite(make_hdlr(mdia.hdlr));
+
+        int start_minf = auxOffset();
+        auxWrite(new byte[]{0x00, 0x00, 0x00, 0x00, 0x6D, 0x69, 0x6E, 0x66});// minf
+        auxWrite(mdia.minf.$mhd);
+        auxWrite(mdia.minf.dinf);
+
+        int start_stbl = auxOffset();
+        auxWrite(new byte[]{0x00, 0x00, 0x00, 0x00, 0x73, 0x74, 0x62, 0x6C});// stbl
+        auxWrite(mdia.minf.stbl_stsd);
+
+        //
+        // In audio tracks the following tables is not required: ssts ctts
+        // And stsz can be empty if has a default sample size
+        //
+        if (moovSimulation) {
+            make(0x73747473, -1, 2, 1);
+            if (tablesInfo.stss > 0) {
+                make(0x73747373, -1, 1, tablesInfo.stss);
+            }
+            if (tablesInfo.ctts > 0) {
+                make(0x63747473, -1, 2, tablesInfo.ctts);
+            }
+            make(0x73747363, -1, 3, tablesInfo.stsc);
+            make(0x7374737A, tablesInfo.stsz_default, 1, tablesInfo.stsz);
+            make(is64 ? 0x636F3634 : 0x7374636F, -1, is64 ? 2 : 1, tablesInfo.stco);
+        } else {
+            tablesInfo.stts = make(0x73747473, -1, 2, 1);
+            if (tablesInfo.stss > 0) {
+                tablesInfo.stss = make(0x73747373, -1, 1, tablesInfo.stss);
+            }
+            if (tablesInfo.ctts > 0) {
+                tablesInfo.ctts = make(0x63747473, -1, 2, tablesInfo.ctts);
+            }
+            tablesInfo.stsc = make(0x73747363, -1, 3, tablesInfo.stsc);
+            tablesInfo.stsz = make(0x7374737A, tablesInfo.stsz_default, 1, tablesInfo.stsz);
+            tablesInfo.stco = make(is64 ? 0x636F3634 : 0x7374636F, -1, is64 ? 2 : 1, tablesInfo.stco);
+        }
+
+        lengthFor(start_stbl);
+        lengthFor(start_minf);
+        lengthFor(start_mdia);
+    }
+
+    private byte[] make_hdlr(Hdlr hdlr) {
+        ByteBuffer buffer = ByteBuffer.wrap(new byte[]{
+                0x00, 0x00, 0x00, 0x77, 0x68, 0x64, 0x6C, 0x72,// hdlr
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                // binary string "ISO Media file created in NewPipe (A libre lightweight streaming frontend for Android)."
+                0x49, 0x53, 0x4F, 0x20, 0x4D, 0x65, 0x64, 0x69, 0x61, 0x20, 0x66, 0x69, 0x6C, 0x65, 0x20, 0x63,
+                0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x20, 0x69, 0x6E, 0x20, 0x4E, 0x65, 0x77, 0x50, 0x69, 0x70,
+                0x65, 0x20, 0x28, 0x41, 0x20, 0x6C, 0x69, 0x62, 0x72, 0x65, 0x20, 0x6C, 0x69, 0x67, 0x68, 0x74,
+                0x77, 0x65, 0x69, 0x67, 0x68, 0x74, 0x20, 0x73, 0x74, 0x72, 0x65, 0x61, 0x6D, 0x69, 0x6E, 0x67,
+                0x20, 0x66, 0x72, 0x6F, 0x6E, 0x74, 0x65, 0x6E, 0x64, 0x20, 0x66, 0x6F, 0x72, 0x20, 0x41, 0x6E,
+                0x64, 0x72, 0x6F, 0x69, 0x64, 0x29, 0x2E
+        });
+
+        buffer.position(12);
+        buffer.putInt(hdlr.type);
+        buffer.putInt(hdlr.subType);
+        buffer.put(hdlr.bReserved);// always is a zero array
+
+        return buffer.array();
+    }
+    //</editor-fold>
+
+    class TablesInfo {
+
+        public int stts;
+        public int stsc;
+        public int[] stsc_bEntries;
+        public int ctts;
+        public int stsz;
+        public int stsz_default;
+        public int stss;
+        public int stco;
+    }
+}

app/src/main/java/org/schabi/newpipe/streams/SubtitleConverter.java

@@ -1,5 +1,6 @@
 package org.schabi.newpipe.streams;
 
+import org.schabi.newpipe.streams.io.SharpStream;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
@@ -12,8 +13,6 @@ import java.nio.charset.Charset;
 import java.text.ParseException;
 import java.util.Locale;
 
-import org.schabi.newpipe.streams.io.SharpStream;
-
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.parsers.ParserConfigurationException;
@@ -27,11 +26,11 @@ public class SubtitleConverter {
 
     public void dumpTTML(SharpStream in, final SharpStream out, final boolean ignoreEmptyFrames, final boolean detectYoutubeDuplicateLines
     ) throws IOException, ParseException, SAXException, ParserConfigurationException, XPathExpressionException {
-        
+
         final FrameWriter callback = new FrameWriter() {
             int frameIndex = 0;
             final Charset charset = Charset.forName("utf-8");
-            
+
             @Override
             public void yield(SubtitleFrame frame) throws IOException {
                 if (ignoreEmptyFrames && frame.isEmptyText()) {
@@ -48,13 +47,13 @@ public class SubtitleConverter {
                 out.write(NEW_LINE.getBytes(charset));
             }
         };
-        
+
         read_xml_based(in, callback, detectYoutubeDuplicateLines,
                 "tt", "xmlns", "http://www.w3.org/ns/ttml",
                 new String[]{"timedtext", "head", "wp"},
                 new String[]{"body", "div", "p"},
                 "begin", "end", true
-        );                  
+        );
     }
 
     private void read_xml_based(SharpStream source, FrameWriter callback, boolean detectYoutubeDuplicateLines,
@@ -70,7 +69,7 @@ public class SubtitleConverter {
          * Language parsing is not supported
          */
 
-        byte[] buffer = new byte[source.available()];
+        byte[] buffer = new byte[(int) source.available()];
         source.read(buffer);
 
         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
@@ -206,7 +205,7 @@ public class SubtitleConverter {
         }
     }
 
-    private static NodeList selectNodes(Document xml, String[] path, String namespaceUri) throws XPathExpressionException {
+    private static NodeList selectNodes(Document xml, String[] path, String namespaceUri) {
         Element ref = xml.getDocumentElement();
 
         for (int i = 0; i < path.length - 1; i++) {

app/src/main/java/org/schabi/newpipe/streams/TrackDataChunk.java

@@ -1,65 +0,0 @@
-package org.schabi.newpipe.streams;
-
-import java.io.InputStream;
-import java.io.IOException;
-
-public class TrackDataChunk extends InputStream {
-
-    private final DataReader base;
-    private int size;
-
-    public TrackDataChunk(DataReader base, int size) {
-        this.base = base;
-        this.size = size;
-    }
-
-    @Override
-    public int read() throws IOException {
-        if (size < 1) {
-            return -1;
-        }
-
-        int res = base.read();
-
-        if (res >= 0) {
-            size--;
-        }
-
-        return res;
-    }
-
-    @Override
-    public int read(byte[] buffer) throws IOException {
-        return read(buffer, 0, buffer.length);
-    }
-
-    @Override
-    public int read(byte[] buffer, int offset, int count) throws IOException {
-        count = Math.min(size, count);
-        int read = base.read(buffer, offset, count);
-        size -= count;
-        return read;
-    }
-
-    @Override
-    public long skip(long amount) throws IOException {
-        long res = base.skipBytes(Math.min(amount, size));
-        size -= res;
-        return res;
-    }
-
-    @Override
-    public int available() {
-        return size;
-    }
-
-    @Override
-    public void close() {
-        size = 0;
-    }
-
-    @Override
-    public boolean markSupported() {
-        return false;
-    }
-}

app/src/main/java/org/schabi/newpipe/streams/WebMReader.java

@@ -1,12 +1,13 @@
 package org.schabi.newpipe.streams;
 
+import org.schabi.newpipe.streams.io.SharpStream;
+
 import java.io.EOFException;
 import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.NoSuchElementException;
-import java.util.Objects;
-
-import org.schabi.newpipe.streams.io.SharpStream;
 
 /**
  *
@@ -121,7 +122,7 @@ public class WebMReader {
     }
 
     private String readString(Element parent) throws IOException {
-        return new String(readBlob(parent), "utf-8");
+        return new String(readBlob(parent), StandardCharsets.UTF_8);// or use "utf-8"
     }
 
     private byte[] readBlob(Element parent) throws IOException {
@@ -193,6 +194,7 @@ public class WebMReader {
                     return elem;
                 }
             }
+
             ensure(elem);
         }
 
@@ -306,7 +308,7 @@ public class WebMReader {
                         entry.trackNumber = readNumber(elem);
                         break;
                     case ID_TrackType:
-                        entry.trackType = (int)readNumber(elem);
+                        entry.trackType = (int) readNumber(elem);
                         break;
                     case ID_CodecID:
                         entry.codecId = readString(elem);
@@ -445,7 +447,7 @@ public class WebMReader {
 
     public class SimpleBlock {
 
-        public TrackDataChunk data;
+        public InputStream data;
 
         SimpleBlock(Element ref) {
             this.ref = ref;
@@ -492,7 +494,7 @@ public class WebMReader {
 
                 currentSimpleBlock = readSimpleBlock(elem);
                 if (currentSimpleBlock.trackNumber == tracks[selectedTrack].trackNumber) {
-                    currentSimpleBlock.data = new TrackDataChunk(stream, (int) currentSimpleBlock.dataSize);
+                    currentSimpleBlock.data = stream.getView((int) currentSimpleBlock.dataSize);
                     return currentSimpleBlock;
                 }
 

app/src/main/java/org/schabi/newpipe/streams/WebMWriter.java

@@ -1,20 +1,20 @@
 package org.schabi.newpipe.streams;
 
+import android.support.annotation.NonNull;
+
 import org.schabi.newpipe.streams.WebMReader.Cluster;
 import org.schabi.newpipe.streams.WebMReader.Segment;
 import org.schabi.newpipe.streams.WebMReader.SimpleBlock;
 import org.schabi.newpipe.streams.WebMReader.WebMTrack;
+import org.schabi.newpipe.streams.io.SharpStream;
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.UnsupportedEncodingException;
 import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 
-import org.schabi.newpipe.streams.io.SharpStream;
-
 /**
- *
  * @author kapodamy
  */
 public class WebMWriter {
@@ -94,10 +94,6 @@ public class WebMWriter {
         }
     }
 
-    public long getBytesWritten() {
-        return written;
-    }
-
     public boolean isDone() {
         return done;
     }
@@ -111,7 +107,7 @@ public class WebMWriter {
         parsed = true;
 
         for (SharpStream src : sourceTracks) {
-            src.dispose();
+            src.close();
         }
 
         sourceTracks = null;
@@ -138,42 +134,42 @@ public class WebMWriter {
 
         /* segment */
         listBuffer.add(new byte[]{
-            0x18, 0x53, (byte) 0x80, 0x67, 0x01,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00// segment content size
+                0x18, 0x53, (byte) 0x80, 0x67, 0x01,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00// segment content size
         });
 
         long baseSegmentOffset = written + listBuffer.get(0).length;
 
         /* seek head */
         listBuffer.add(new byte[]{
-            0x11, 0x4d, (byte) 0x9b, 0x74, (byte) 0xbe,
-            0x4d, (byte) 0xbb, (byte) 0x8b,
-            0x53, (byte) 0xab, (byte) 0x84, 0x15, 0x49, (byte) 0xa9, 0x66, 0x53,
-            (byte) 0xac, (byte) 0x81, /*info offset*/ 0x43,
-            0x4d, (byte) 0xbb, (byte) 0x8b, 0x53, (byte) 0xab,
-            (byte) 0x84, 0x16, 0x54, (byte) 0xae, 0x6b, 0x53, (byte) 0xac, (byte) 0x81,
-            /*tracks offset*/ 0x6a,
-            0x4d, (byte) 0xbb, (byte) 0x8e, 0x53, (byte) 0xab, (byte) 0x84, 0x1f,
-            0x43, (byte) 0xb6, 0x75, 0x53, (byte) 0xac, (byte) 0x84, /*cluster offset [2]*/ 0x00, 0x00, 0x00, 0x00,
-            0x4d, (byte) 0xbb, (byte) 0x8e, 0x53, (byte) 0xab, (byte) 0x84, 0x1c, 0x53,
-            (byte) 0xbb, 0x6b, 0x53, (byte) 0xac, (byte) 0x84, /*cues offset [7]*/ 0x00, 0x00, 0x00, 0x00
+                0x11, 0x4d, (byte) 0x9b, 0x74, (byte) 0xbe,
+                0x4d, (byte) 0xbb, (byte) 0x8b,
+                0x53, (byte) 0xab, (byte) 0x84, 0x15, 0x49, (byte) 0xa9, 0x66, 0x53,
+                (byte) 0xac, (byte) 0x81, /*info offset*/ 0x43,
+                0x4d, (byte) 0xbb, (byte) 0x8b, 0x53, (byte) 0xab,
+                (byte) 0x84, 0x16, 0x54, (byte) 0xae, 0x6b, 0x53, (byte) 0xac, (byte) 0x81,
+                /*tracks offset*/ 0x6a,
+                0x4d, (byte) 0xbb, (byte) 0x8e, 0x53, (byte) 0xab, (byte) 0x84, 0x1f,
+                0x43, (byte) 0xb6, 0x75, 0x53, (byte) 0xac, (byte) 0x84, /*cluster offset [2]*/ 0x00, 0x00, 0x00, 0x00,
+                0x4d, (byte) 0xbb, (byte) 0x8e, 0x53, (byte) 0xab, (byte) 0x84, 0x1c, 0x53,
+                (byte) 0xbb, 0x6b, 0x53, (byte) 0xac, (byte) 0x84, /*cues offset [7]*/ 0x00, 0x00, 0x00, 0x00
         });
 
         /* info */
         listBuffer.add(new byte[]{
-            0x15, 0x49, (byte) 0xa9, 0x66, (byte) 0xa2, 0x2a, (byte) 0xd7, (byte) 0xb1
+                0x15, 0x49, (byte) 0xa9, 0x66, (byte) 0xa2, 0x2a, (byte) 0xd7, (byte) 0xb1
         });
         listBuffer.add(encode(DEFAULT_TIMECODE_SCALE, true));// this value MUST NOT exceed 4 bytes
         listBuffer.add(new byte[]{0x44, (byte) 0x89, (byte) 0x84,
-            0x00, 0x00, 0x00, 0x00,// info.duration
-            
-            /* MuxingApp */
-            0x4d, (byte) 0x80, (byte) 0x87, 0x4E, 
-            0x65, 0x77, 0x50, 0x69, 0x70, 0x65, // "NewPipe" binary string
-            
-            /* WritingApp */ 
-            0x57, 0x41, (byte) 0x87, 0x4E, 
-            0x65, 0x77, 0x50, 0x69, 0x70, 0x65// "NewPipe" binary string
+                0x00, 0x00, 0x00, 0x00,// info.duration
+
+                /* MuxingApp */
+                0x4d, (byte) 0x80, (byte) 0x87, 0x4E,
+                0x65, 0x77, 0x50, 0x69, 0x70, 0x65, // "NewPipe" binary string
+
+                /* WritingApp */
+                0x57, 0x41, (byte) 0x87, 0x4E,
+                0x65, 0x77, 0x50, 0x69, 0x70, 0x65// "NewPipe" binary string
         });
 
         /* tracks */
@@ -200,7 +196,6 @@ public class WebMWriter {
         long nextCueTime = infoTracks[cuesForTrackId].trackType == 1 ? -1 : 0;
         ArrayList<KeyFrame> keyFrames = new ArrayList<>(32);
 
-        //ArrayList<Block> chunks = new ArrayList<>(readers.length);
         ArrayList<Long> clusterOffsets = new ArrayList<>(32);
         ArrayList<Integer> clusterSizes = new ArrayList<>(32);
 
@@ -283,24 +278,21 @@ public class WebMWriter {
 
         long segmentSize = written - offsetSegmentSizeSet - 7;
 
-        // final step write offsets and sizes
-        out.rewind();
-        written = 0;
-
-        skipTo(out, offsetSegmentSizeSet);
+        /* ---- final step write offsets and sizes ---- */
+        seekTo(out, offsetSegmentSizeSet);
         writeLong(out, segmentSize);
 
         if (predefinedDurations[durationFromTrackId] > -1) {
             duration += predefinedDurations[durationFromTrackId];// this value is full-filled in makeTrackEntry() method
         }
-        skipTo(out, offsetInfoDurationSet);
+        seekTo(out, offsetInfoDurationSet);
         writeFloat(out, duration);
 
         firstClusterOffset -= baseSegmentOffset;
-        skipTo(out, offsetClusterSet);
+        seekTo(out, offsetClusterSet);
         writeInt(out, firstClusterOffset);
 
-        skipTo(out, cueReservedOffset);
+        seekTo(out, cueReservedOffset);
 
         /* Cue */
         dump(new byte[]{0x1c, 0x53, (byte) 0xbb, 0x6b, 0x20, 0x00, 0x00}, out);
@@ -321,20 +313,16 @@ public class WebMWriter {
         voidBuffer.putShort((short) (firstClusterOffset - written - 4));
         dump(voidBuffer.array(), out);
 
-        out.rewind();
-        written = 0;
-
-        skipTo(out, offsetCuesSet);
+        seekTo(out, offsetCuesSet);
         writeInt(out, (int) (cueReservedOffset - baseSegmentOffset));
 
-        skipTo(out, cueReservedOffset + 5);
+        seekTo(out, cueReservedOffset + 5);
         writeShort(out, cueSize);
 
         for (int i = 0; i < clusterSizes.size(); i++) {
-            skipTo(out, clusterOffsets.get(i));
-            byte[] size = ByteBuffer.allocate(4).putInt(clusterSizes.get(i) | 0x200000).array();
-            out.write(size, 1, 3);
-            written += 3;
+            seekTo(out, clusterOffsets.get(i));
+            byte[] buffer = ByteBuffer.allocate(4).putInt(clusterSizes.get(i) | 0x10000000).array();
+            dump(buffer, out);
         }
     }
 
@@ -365,20 +353,29 @@ public class WebMWriter {
         bloq.dataSize = (int) res.dataSize;
         bloq.trackNumber = internalTrackId;
         bloq.flags = res.flags;
-        bloq.absoluteTimecode = convertTimecode(res.relativeTimeCode, readersSegment[internalTrackId].info.timecodeScale, DEFAULT_TIMECODE_SCALE);
+        bloq.absoluteTimecode = convertTimecode(res.relativeTimeCode, readersSegment[internalTrackId].info.timecodeScale);
         bloq.absoluteTimecode += readersCluter[internalTrackId].timecode;
 
         return bloq;
     }
 
-    private short convertTimecode(int time, long oldTimeScale, int newTimeScale) {
-        return (short) (time * (newTimeScale / oldTimeScale));
+    private short convertTimecode(int time, long oldTimeScale) {
+        return (short) (time * (DEFAULT_TIMECODE_SCALE / oldTimeScale));
     }
 
-    private void skipTo(SharpStream stream, long absoluteOffset) throws IOException {
-        absoluteOffset -= written;
-        written += absoluteOffset;
-        stream.skip(absoluteOffset);
+    private void seekTo(SharpStream stream, long offset) throws IOException {
+        if (stream.canSeek()) {
+            stream.seek(offset);
+        } else {
+            if (offset > written) {
+                stream.skip(offset - written);
+            } else {
+                stream.rewind();
+                stream.skip(offset);
+            }
+        }
+
+        written = offset;
     }
 
     private void writeLong(SharpStream stream, long number) throws IOException {
@@ -453,7 +450,7 @@ public class WebMWriter {
             /* cluster */
             dump(new byte[]{0x1f, 0x43, (byte) 0xb6, 0x75}, stream);
             clusterOffsets.add(written);// warning: max cluster size is 256 MiB
-            dump(new byte[]{0x20, 0x00, 0x00}, stream);
+            dump(new byte[]{0x10, 0x00, 0x00, 0x00}, stream);
 
             startOffset = written;// size for the this cluster
 
@@ -468,12 +465,12 @@ public class WebMWriter {
     private void makeEBML(SharpStream stream) throws IOException {
         // deafult values
         dump(new byte[]{
-            0x1A, 0x45, (byte) 0xDF, (byte) 0xA3, 0x01, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x1F, 0x42, (byte) 0x86, (byte) 0x81, 0x01,
-            0x42, (byte) 0xF7, (byte) 0x81, 0x01, 0x42, (byte) 0xF2, (byte) 0x81, 0x04,
-            0x42, (byte) 0xF3, (byte) 0x81, 0x08, 0x42, (byte) 0x82, (byte) 0x84, 0x77,
-            0x65, 0x62, 0x6D, 0x42, (byte) 0x87, (byte) 0x81, 0x02,
-            0x42, (byte) 0x85, (byte) 0x81, 0x02
+                0x1A, 0x45, (byte) 0xDF, (byte) 0xA3, 0x01, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x1F, 0x42, (byte) 0x86, (byte) 0x81, 0x01,
+                0x42, (byte) 0xF7, (byte) 0x81, 0x01, 0x42, (byte) 0xF2, (byte) 0x81, 0x04,
+                0x42, (byte) 0xF3, (byte) 0x81, 0x08, 0x42, (byte) 0x82, (byte) 0x84, 0x77,
+                0x65, 0x62, 0x6D, 0x42, (byte) 0x87, (byte) 0x81, 0x02,
+                0x42, (byte) 0x85, (byte) 0x81, 0x02
         }, stream);
     }
 
@@ -618,9 +615,10 @@ public class WebMWriter {
 
         int offset = withLength ? 1 : 0;
         byte[] buffer = new byte[offset + length];
-        long marker = (long) Math.floor((length - 1) / 8);
+        long marker = (long) Math.floor((length - 1f) / 8f);
 
-        for (int i = length - 1, mul = 1; i >= 0; i--, mul *= 0x100) {
+        float mul = 1;
+        for (int i = length - 1; i >= 0; i--, mul *= 0x100) {
             long b = (long) Math.floor(number / mul);
             if (!withLength && i == marker) {
                 b = b | (0x80 >> (length - 1));
@@ -637,11 +635,7 @@ public class WebMWriter {
 
     private ArrayList<byte[]> encode(String value) {
         byte[] str;
-        try {
-            str = value.getBytes("utf-8");
-        } catch (UnsupportedEncodingException err) {
-            str = value.getBytes();
-        }
+        str = value.getBytes(StandardCharsets.UTF_8);// or use "utf-8"
 
         ArrayList<byte[]> buffer = new ArrayList<>(2);
         buffer.add(encode(str.length, false));
@@ -720,9 +714,10 @@ public class WebMWriter {
             return (flags & 0x80) == 0x80;
         }
 
+        @NonNull
         @Override
         public String toString() {
-            return String.format("trackNumber=%s  isKeyFrame=%S  absoluteTimecode=%s", trackNumber, (flags & 0x80) == 0x80, absoluteTimecode);
+            return String.format("trackNumber=%s  isKeyFrame=%S  absoluteTimecode=%s", trackNumber, isKeyframe(), absoluteTimecode);
         }
     }
 }

app/src/main/java/org/schabi/newpipe/streams/io/SharpStream.java

@@ -1,11 +1,12 @@
 package org.schabi.newpipe.streams.io;
 
+import java.io.Closeable;
 import java.io.IOException;
 
 /**
- * based c#
+ * based on c#
  */
-public abstract class SharpStream {
+public abstract class SharpStream  implements Closeable {
 
     public abstract int read() throws IOException;
 
@@ -15,16 +16,14 @@ public abstract class SharpStream {
 
     public abstract long skip(long amount) throws IOException;
 
-
-    public abstract int available();
+    public abstract long available();
 
     public abstract void rewind() throws IOException;
 
+    public abstract boolean isClosed();
 
-    public abstract void dispose();
-
-    public abstract boolean isDisposed();
-
+    @Override
+    public abstract void close();
 
     public abstract boolean canRewind();
 
@@ -32,6 +31,13 @@ public abstract class SharpStream {
 
     public abstract boolean canWrite();
 
+    public boolean canSetLength() {
+        return false;
+    }
+
+    public boolean canSeek() {
+        return false;
+    }
 
     public abstract void write(byte value) throws IOException;
 
@@ -39,9 +45,19 @@ public abstract class SharpStream {
 
     public abstract void write(byte[] buffer, int offset, int count) throws IOException;
 
-    public abstract void flush() throws IOException;
+    public void flush() throws IOException {
+        // STUB
+    }
 
     public void setLength(long length) throws IOException {
         throw new IOException("Not implemented");
     }
+
+    public void seek(long offset) throws IOException {
+        throw new IOException("Not implemented");
+    }
+
+    public long length() throws IOException {
+        throw new UnsupportedOperationException("Unsupported operation");
+    }
 }

app/src/main/java/org/schabi/newpipe/util/AnimationUtils.java

@@ -25,6 +25,7 @@ import android.animation.ArgbEvaluator;
 import android.animation.ValueAnimator;
 import android.content.res.ColorStateList;
 import android.support.annotation.ColorInt;
+import android.support.annotation.FloatRange;
 import android.support.v4.view.ViewCompat;
 import android.support.v4.view.animation.FastOutSlowInInterpolator;
 import android.util.Log;
@@ -363,4 +364,24 @@ public class AnimationUtils {
             }).start();
         }
     }
+
+    public static void slideUp(final View view,
+                               long duration,
+                               long delay,
+                               @FloatRange(from = 0.0f, to = 1.0f) float translationPercent) {
+        int translationY = (int) (view.getResources().getDisplayMetrics().heightPixels *
+                (translationPercent));
+
+        view.animate().setListener(null).cancel();
+        view.setAlpha(0f);
+        view.setTranslationY(translationY);
+        view.setVisibility(View.VISIBLE);
+        view.animate()
+                .alpha(1f)
+                .translationY(0)
+                .setStartDelay(delay)
+                .setDuration(duration)
+                .setInterpolator(new FastOutSlowInInterpolator())
+                .start();
+    }
 }

app/src/main/java/org/schabi/newpipe/util/CommentTextOnTouchListener.java

@@ -0,0 +1,131 @@
+package org.schabi.newpipe.util;
+
+import android.content.Context;
+import android.text.Layout;
+import android.text.Selection;
+import android.text.Spannable;
+import android.text.Spanned;
+import android.text.style.ClickableSpan;
+import android.text.style.URLSpan;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.TextView;
+
+import org.schabi.newpipe.extractor.NewPipe;
+import org.schabi.newpipe.extractor.StreamingService;
+import org.schabi.newpipe.extractor.exceptions.ExtractionException;
+import org.schabi.newpipe.extractor.exceptions.ParsingException;
+import org.schabi.newpipe.extractor.linkhandler.LinkHandlerFactory;
+import org.schabi.newpipe.extractor.stream.StreamInfo;
+import org.schabi.newpipe.player.playqueue.PlayQueue;
+import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import io.reactivex.Single;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
+
+public class CommentTextOnTouchListener implements View.OnTouchListener {
+
+    public static final CommentTextOnTouchListener INSTANCE = new CommentTextOnTouchListener();
+
+    private static final Pattern timestampPattern = Pattern.compile("(.*)#timestamp=(\\d+)");
+
+    @Override
+    public boolean onTouch(View v, MotionEvent event) {
+        if(!(v instanceof TextView)){
+            return false;
+        }
+        TextView widget = (TextView) v;
+        Object text = widget.getText();
+        if (text instanceof Spanned) {
+            Spannable buffer = (Spannable) text;
+
+            int action = event.getAction();
+
+            if (action == MotionEvent.ACTION_UP
+                    || action == MotionEvent.ACTION_DOWN) {
+                int x = (int) event.getX();
+                int y = (int) event.getY();
+
+                x -= widget.getTotalPaddingLeft();
+                y -= widget.getTotalPaddingTop();
+
+                x += widget.getScrollX();
+                y += widget.getScrollY();
+
+                Layout layout = widget.getLayout();
+                int line = layout.getLineForVertical(y);
+                int off = layout.getOffsetForHorizontal(line, x);
+
+                ClickableSpan[] link = buffer.getSpans(off, off,
+                        ClickableSpan.class);
+
+                if (link.length != 0) {
+                    if (action == MotionEvent.ACTION_UP) {
+                        boolean handled = false;
+                        if(link[0] instanceof URLSpan){
+                            handled = handleUrl(v.getContext(), (URLSpan) link[0]);
+                        }
+                        if(!handled) link[0].onClick(widget);
+                    } else if (action == MotionEvent.ACTION_DOWN) {
+                        Selection.setSelection(buffer,
+                                buffer.getSpanStart(link[0]),
+                                buffer.getSpanEnd(link[0]));
+                    }
+                    return true;
+                }
+            }
+
+        }
+
+        return false;
+    }
+
+    private boolean handleUrl(Context context, URLSpan urlSpan) {
+        String url = urlSpan.getURL();
+        int seconds = -1;
+        Matcher matcher = timestampPattern.matcher(url);
+        if(matcher.matches()){
+            url = matcher.group(1);
+            seconds = Integer.parseInt(matcher.group(2));
+        }
+        StreamingService service;
+        StreamingService.LinkType linkType;
+        try {
+            service = NewPipe.getServiceByUrl(url);
+            linkType = service.getLinkTypeByUrl(url);
+        } catch (ExtractionException e) {
+            return false;
+        }
+        if(linkType == StreamingService.LinkType.NONE){
+            return false;
+        }
+        if(linkType == StreamingService.LinkType.STREAM && seconds != -1){
+            return playOnPopup(context, url, service, seconds);
+        }else{
+            NavigationHelper.openRouterActivity(context, url);
+            return true;
+        }
+    }
+
+    private boolean playOnPopup(Context context, String url, StreamingService service, int seconds) {
+        LinkHandlerFactory factory = service.getStreamLHFactory();
+        String cleanUrl = null;
+        try {
+            cleanUrl = factory.getUrl(factory.getId(url));
+        } catch (ParsingException e) {
+            return false;
+        }
+        Single single = ExtractorHelper.getStreamInfo(service.getServiceId(), cleanUrl, false);
+        single.subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(info -> {
+                    PlayQueue playQueue = new SinglePlayQueue((StreamInfo) info, seconds*1000);
+                    NavigationHelper.playOnPopupPlayer(context, playQueue, false);
+                });
+        return true;
+    }
+}

app/src/main/java/org/schabi/newpipe/util/ExtractorHelper.java

@@ -29,10 +29,12 @@ import org.schabi.newpipe.MainActivity;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.ReCaptchaActivity;
 import org.schabi.newpipe.extractor.Info;
+import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.ListExtractor.InfoItemsPage;
 import org.schabi.newpipe.extractor.NewPipe;
+import org.schabi.newpipe.extractor.SuggestionExtractor;
 import org.schabi.newpipe.extractor.channel.ChannelInfo;
-import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
+import org.schabi.newpipe.extractor.comments.CommentsInfo;
 import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
@@ -46,6 +48,7 @@ import org.schabi.newpipe.report.UserAction;
 
 import java.io.IOException;
 import java.io.InterruptedIOException;
+import java.util.Collections;
 import java.util.List;
 
 import io.reactivex.Maybe;
@@ -60,7 +63,7 @@ public final class ExtractorHelper {
     }
 
     private static void checkServiceId(int serviceId) {
-        if(serviceId == Constants.NO_SERVICE_ID) {
+        if (serviceId == Constants.NO_SERVICE_ID) {
             throw new IllegalArgumentException("serviceId is NO_SERVICE_ID");
         }
     }
@@ -95,17 +98,20 @@ public final class ExtractorHelper {
     public static Single<List<String>> suggestionsFor(final int serviceId,
                                                       final String query) {
         checkServiceId(serviceId);
-        return Single.fromCallable(() ->
-                NewPipe.getService(serviceId)
-                        .getSuggestionExtractor()
-                        .suggestionList(query));
+        return Single.fromCallable(() -> {
+            SuggestionExtractor extractor = NewPipe.getService(serviceId)
+                    .getSuggestionExtractor();
+            return extractor != null
+                    ? extractor.suggestionList(query)
+                    : Collections.emptyList();
+        });
     }
 
     public static Single<StreamInfo> getStreamInfo(final int serviceId,
                                                    final String url,
                                                    boolean forceLoad) {
         checkServiceId(serviceId);
-        return checkCache(forceLoad, serviceId, url, Single.fromCallable(() ->
+        return checkCache(forceLoad, serviceId, url, InfoItem.InfoType.STREAM, Single.fromCallable(() ->
                 StreamInfo.getInfo(NewPipe.getService(serviceId), url)));
     }
 
@@ -113,29 +119,45 @@ public final class ExtractorHelper {
                                                      final String url,
                                                      boolean forceLoad) {
         checkServiceId(serviceId);
-        return checkCache(forceLoad, serviceId, url, Single.fromCallable(() ->
+        return checkCache(forceLoad, serviceId, url, InfoItem.InfoType.CHANNEL, Single.fromCallable(() ->
                 ChannelInfo.getInfo(NewPipe.getService(serviceId), url)));
     }
 
     public static Single<InfoItemsPage> getMoreChannelItems(final int serviceId,
-                                                              final String url,
-                                                              final String nextStreamsUrl) {
+                                                            final String url,
+                                                            final String nextStreamsUrl) {
         checkServiceId(serviceId);
         return Single.fromCallable(() ->
                 ChannelInfo.getMoreItems(NewPipe.getService(serviceId), url, nextStreamsUrl));
     }
 
+    public static Single<CommentsInfo> getCommentsInfo(final int serviceId,
+                                                       final String url,
+                                                       boolean forceLoad) {
+        checkServiceId(serviceId);
+        return checkCache(forceLoad, serviceId, url, InfoItem.InfoType.COMMENT, Single.fromCallable(() ->
+                CommentsInfo.getInfo(NewPipe.getService(serviceId), url)));
+    }
+
+    public static Single<InfoItemsPage> getMoreCommentItems(final int serviceId,
+                                                            final CommentsInfo info,
+                                                            final String nextPageUrl) {
+        checkServiceId(serviceId);
+        return Single.fromCallable(() ->
+                CommentsInfo.getMoreItems(NewPipe.getService(serviceId), info, nextPageUrl));
+    }
+
     public static Single<PlaylistInfo> getPlaylistInfo(final int serviceId,
                                                        final String url,
                                                        boolean forceLoad) {
         checkServiceId(serviceId);
-        return checkCache(forceLoad, serviceId, url, Single.fromCallable(() ->
+        return checkCache(forceLoad, serviceId, url, InfoItem.InfoType.PLAYLIST, Single.fromCallable(() ->
                 PlaylistInfo.getInfo(NewPipe.getService(serviceId), url)));
     }
 
     public static Single<InfoItemsPage> getMorePlaylistItems(final int serviceId,
-                                                               final String url,
-                                                               final String nextStreamsUrl) {
+                                                             final String url,
+                                                             final String nextStreamsUrl) {
         checkServiceId(serviceId);
         return Single.fromCallable(() ->
                 PlaylistInfo.getMoreItems(NewPipe.getService(serviceId), url, nextStreamsUrl));
@@ -144,7 +166,7 @@ public final class ExtractorHelper {
     public static Single<KioskInfo> getKioskInfo(final int serviceId,
                                                  final String url,
                                                  boolean forceLoad) {
-        return checkCache(forceLoad, serviceId, url, Single.fromCallable(() ->
+        return checkCache(forceLoad, serviceId, url, InfoItem.InfoType.PLAYLIST, Single.fromCallable(() ->
                 KioskInfo.getInfo(NewPipe.getService(serviceId), url)));
     }
 
@@ -168,16 +190,17 @@ public final class ExtractorHelper {
     private static <I extends Info> Single<I> checkCache(boolean forceLoad,
                                                          int serviceId,
                                                          String url,
+                                                         InfoItem.InfoType infoType,
                                                          Single<I> loadFromNetwork) {
         checkServiceId(serviceId);
-        loadFromNetwork = loadFromNetwork.doOnSuccess(info -> cache.putInfo(serviceId, url, info));
+        loadFromNetwork = loadFromNetwork.doOnSuccess(info -> cache.putInfo(serviceId, url, info, infoType));
 
         Single<I> load;
         if (forceLoad) {
-            cache.removeInfo(serviceId, url);
+            cache.removeInfo(serviceId, url, infoType);
             load = loadFromNetwork;
         } else {
-            load = Maybe.concat(ExtractorHelper.loadFromCache(serviceId, url),
+            load = Maybe.concat(ExtractorHelper.loadFromCache(serviceId, url, infoType),
                     loadFromNetwork.toMaybe())
                     .firstElement() //Take the first valid
                     .toSingle();
@@ -189,20 +212,24 @@ public final class ExtractorHelper {
     /**
      * Default implementation uses the {@link InfoCache} to get cached results
      */
-    public static <I extends Info> Maybe<I> loadFromCache(final int serviceId, final String url) {
+    public static <I extends Info> Maybe<I> loadFromCache(final int serviceId, final String url, InfoItem.InfoType infoType) {
         checkServiceId(serviceId);
         return Maybe.defer(() -> {
-                //noinspection unchecked
-                I info = (I) cache.getFromKey(serviceId, url);
-                if (MainActivity.DEBUG) Log.d(TAG, "loadFromCache() called, info > " + info);
+            //noinspection unchecked
+            I info = (I) cache.getFromKey(serviceId, url, infoType);
+            if (MainActivity.DEBUG) Log.d(TAG, "loadFromCache() called, info > " + info);
 
-                // Only return info if it's not null (it is cached)
-                if (info != null) {
-                    return Maybe.just(info);
-                }
+            // Only return info if it's not null (it is cached)
+            if (info != null) {
+                return Maybe.just(info);
+            }
 
-                return Maybe.empty();
-            });
+            return Maybe.empty();
+        });
+    }
+
+    public static boolean isCached(final int serviceId, final String url, InfoItem.InfoType infoType) {
+        return null != loadFromCache(serviceId, url, infoType).blockingGet();
     }
 
     /**
@@ -220,8 +247,6 @@ public final class ExtractorHelper {
                 context.startActivity(intent);
             } else if (exception instanceof IOException) {
                 Toast.makeText(context, R.string.network_error, Toast.LENGTH_LONG).show();
-            } else if (exception instanceof YoutubeStreamExtractor.GemaException) {
-                Toast.makeText(context, R.string.blocked_by_gema, Toast.LENGTH_LONG).show();
             } else if (exception instanceof ContentNotAvailableException) {
                 Toast.makeText(context, R.string.content_not_available, Toast.LENGTH_LONG).show();
             } else {

app/src/main/java/org/schabi/newpipe/util/FilePickerActivityHelper.java

@@ -2,6 +2,7 @@ package org.schabi.newpipe.util;
 
 import android.content.Context;
 import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
 import android.support.annotation.NonNull;
@@ -29,7 +30,7 @@ public class FilePickerActivityHelper extends com.nononsenseapps.filepicker.File
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
-        if(ThemeHelper.isLightThemeSelected(this)) {
+        if (ThemeHelper.isLightThemeSelected(this)) {
             this.setTheme(R.style.FilePickerThemeLight);
         } else {
             this.setTheme(R.style.FilePickerThemeDark);
@@ -73,6 +74,11 @@ public class FilePickerActivityHelper extends com.nononsenseapps.filepicker.File
                 .putExtra(FilePickerActivityHelper.EXTRA_MODE, FilePickerActivityHelper.MODE_NEW_FILE);
     }
 
+    public static boolean isOwnFileUri(@NonNull Context context, @NonNull Uri uri) {
+        if (uri.getAuthority() == null) return false;
+        return uri.getAuthority().startsWith(context.getPackageName());
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Internal
     //////////////////////////////////////////////////////////////////////////*/
@@ -109,6 +115,12 @@ public class FilePickerActivityHelper extends com.nononsenseapps.filepicker.File
             super.onClickOk(view);
         }
 
+        @Override
+        protected boolean isItemVisible(@NonNull File file) {
+            if (file.isDirectory() && file.isHidden()) return true;
+            return super.isItemVisible(file);
+        }
+
         public File getBackTop() {
             if (getArguments() == null) return Environment.getExternalStorageDirectory();