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Code Issues Releases Wiki Activity

-Fixed inconsistent audio focus state when audio becomes noisy (e.g. headset unplugged).

Browse Source 
-Fixed live media sources failing when using cached data source by introducing
cacheless data sources.
-Added custom track selector to circumvent ExoPlayer's language normalization NPE.
-Updated Extractor to correctly load live streams.
-Removed deprecated deferred media source and media source manager.
-Removed Livestream exceptions.
This commit is contained in:
John Zhen Mo
2018-02-25 15:10:11 -08:00
parent 19cbcd0c1d
commit 563a4137bd
11 changed files with 356 additions and 773 deletions
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app/src/main/java/org/schabi/newpipe/player/playback/CustomTrackSelector.java Normal file
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package org.schabi.newpipe.player.playback;
import android.support.annotation.NonNull;
import android.text.TextUtils;
import com.google.android.exoplayer2.C;
import com.google.android.exoplayer2.ExoPlaybackException;
import com.google.android.exoplayer2.Format;
import com.google.android.exoplayer2.source.TrackGroup;
import com.google.android.exoplayer2.source.TrackGroupArray;
import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
import com.google.android.exoplayer2.trackselection.FixedTrackSelection;
import com.google.android.exoplayer2.trackselection.TrackSelection;
import com.google.android.exoplayer2.util.Assertions;
import com.google.android.exoplayer2.util.Util;
/**
* This class allows irregular text language labels for use when selecting text captions and
* 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.
* */
public class CustomTrackSelector extends DefaultTrackSelector {
private static final int WITHIN_RENDERER_CAPABILITIES_BONUS = 1000;
private String preferredTextLanguage;
public CustomTrackSelector(TrackSelection.Factory adaptiveTrackSelectionFactory) {
super(adaptiveTrackSelectionFactory);
}
public String getPreferredTextLanguage() {
return preferredTextLanguage;
}
public void setPreferredTextLanguage(@NonNull final String label) {
Assertions.checkNotNull(label);
if (!label.equals(preferredTextLanguage)) {
preferredTextLanguage = label;
invalidate();
}
}
/** @see DefaultTrackSelector#formatHasLanguage(Format, String)*/
protected static boolean formatHasLanguage(Format format, String language) {
return language != null && TextUtils.equals(language, format.language);
}
/** @see DefaultTrackSelector#formatHasNoLanguage(Format)*/
protected static boolean formatHasNoLanguage(Format format) {
return TextUtils.isEmpty(format.language) || formatHasLanguage(format, C.LANGUAGE_UNDETERMINED);
}
/** @see DefaultTrackSelector#selectTextTrack(TrackGroupArray, int[][], Parameters) */
@Override
protected TrackSelection selectTextTrack(TrackGroupArray groups, int[][] formatSupport,
Parameters params) throws ExoPlaybackException {
TrackGroup selectedGroup = null;
int selectedTrackIndex = 0;
int selectedTrackScore = 0;
for (int groupIndex = 0; groupIndex < groups.length; groupIndex++) {
TrackGroup trackGroup = groups.get(groupIndex);
int[] trackFormatSupport = formatSupport[groupIndex];
for (int trackIndex = 0; trackIndex < trackGroup.length; trackIndex++) {
if (isSupported(trackFormatSupport[trackIndex],
params.exceedRendererCapabilitiesIfNecessary)) {
Format format = trackGroup.getFormat(trackIndex);
int maskedSelectionFlags =
format.selectionFlags & ~params.disabledTextTrackSelectionFlags;
boolean isDefault = (maskedSelectionFlags & C.SELECTION_FLAG_DEFAULT) != 0;
boolean isForced = (maskedSelectionFlags & C.SELECTION_FLAG_FORCED) != 0;
int trackScore;
boolean preferredLanguageFound = formatHasLanguage(format, preferredTextLanguage);
if (preferredLanguageFound
|| (params.selectUndeterminedTextLanguage && formatHasNoLanguage(format))) {
if (isDefault) {
trackScore = 8;
} else if (!isForced) {
// Prefer non-forced to forced if a preferred text language has been specified. Where
// both are provided the non-forced track will usually contain the forced subtitles as
// a subset.
trackScore = 6;
} else {
trackScore = 4;
}
trackScore += preferredLanguageFound ? 1 : 0;
} else if (isDefault) {
trackScore = 3;
} else if (isForced) {
if (formatHasLanguage(format, params.preferredAudioLanguage)) {
trackScore = 2;
} else {
trackScore = 1;
}
} else {
// Track should not be selected.
continue;
}
if (isSupported(trackFormatSupport[trackIndex], false)) {
trackScore += WITHIN_RENDERER_CAPABILITIES_BONUS;
}
if (trackScore > selectedTrackScore) {
selectedGroup = trackGroup;
selectedTrackIndex = trackIndex;
selectedTrackScore = trackScore;
}
}
}
}
return selectedGroup == null ? null
: new FixedTrackSelection(selectedGroup, selectedTrackIndex);
}
}