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Code Issues Releases Wiki Activity

Drop "writing/muxed by" metadata

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* All muxers (mp4, webm and ogg) are affected
* solve some checkstyle's errors (building was blocked)

Mp4FromDashWriter:
* drop "writing application"
* drop "handler name"

OggFromWebMWriter:
* drop "writing application" for OPUS and VORBIS header

WebMWriter:
* Drop "Muxing application"
* Drop "Writing application"
This commit is contained in:
kapodamy
2020-07-03 02:07:42 -03:00
parent 07cead7e99
commit 452977abdf
3 changed files with 22 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
app/src/main/java/org/schabi/newpipe/streams/Mp4FromDashWriter.java
View File

@@ -717,18 +717,6 @@ public class Mp4FromDashWriter {
makeTrak(i, durations[i], defaultMediaTime[i], tablesInfo[i], is64); makeTrak(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); return lengthFor(start);
} }
@@ -850,20 +838,10 @@ public class Mp4FromDashWriter {
private byte[] makeHdlr(final Hdlr hdlr) { private byte[] makeHdlr(final Hdlr hdlr) {
ByteBuffer buffer = ByteBuffer.wrap(new byte[]{ ByteBuffer buffer = ByteBuffer.wrap(new byte[]{
0x00, 0x00, 0x00, 0x77, 0x68, 0x64, 0x6C, 0x72, // hdlr 0x00, 0x00, 0x00, 0x21, 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, 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 0x00// null string character
// "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.position(12);
@@ -899,7 +877,7 @@ public class Mp4FromDashWriter {
* characteristics of sample groups. The descriptive information is any other * characteristics of sample groups. The descriptive information is any other
* information needed to define or characterize the sample group. * information needed to define or characterize the sample group.
* *
* ¿is replicabled this box? * ¿is replicable this box?
* NO due lacks of documentation about this box but... * NO due lacks of documentation about this box but...
* most of m4a encoders and ffmpeg uses this box with dummy values (same values) * most of m4a encoders and ffmpeg uses this box with dummy values (same values)
*/ */

38
app/src/main/java/org/schabi/newpipe/streams/OggFromWebMWriter.java
View File

@@ -274,30 +274,15 @@ public class OggFromWebMWriter implements Closeable {
if ("A_OPUS".equals(webmTrack.codecId)) { if ("A_OPUS".equals(webmTrack.codecId)) {
return new byte[]{ return new byte[]{
0x4F, 0x70, 0x75, 0x73, 0x54, 0x61, 0x67, 0x73, // "OpusTags" binary string 0x4F, 0x70, 0x75, 0x73, 0x54, 0x61, 0x67, 0x73, // "OpusTags" binary string
0x07, 0x00, 0x00, 0x00, // writing application string size 0x00, 0x00, 0x00, 0x00, // writing application string size (not present)
0x4E, 0x65, 0x77, 0x50, 0x69, 0x70, 0x65, // "NewPipe" binary string
0x00, 0x00, 0x00, 0x00 // additional tags count (zero means no tags) 0x00, 0x00, 0x00, 0x00 // additional tags count (zero means no tags)
}; };
} else if ("A_VORBIS".equals(webmTrack.codecId)) { } else if ("A_VORBIS".equals(webmTrack.codecId)) {
return new byte[]{ return new byte[]{
0x03, // ???????? 0x03, // ¿¿¿???
0x76, 0x6f, 0x72, 0x62, 0x69, 0x73, // "vorbis" binary string 0x76, 0x6f, 0x72, 0x62, 0x69, 0x73, // "vorbis" binary string
0x07, 0x00, 0x00, 0x00, // writting application string size 0x00, 0x00, 0x00, 0x00, // writing application string size (not present)
0x4E, 0x65, 0x77, 0x50, 0x69, 0x70, 0x65, // "NewPipe" binary string 0x00, 0x00, 0x00, 0x00, // additional tags count (zero means no tags)
0x01, 0x00, 0x00, 0x00, // additional tags count (zero means no tags)
/*
// whole file duration (not implemented)
0x44,// tag string size
0x55, 0x52, 0x41, 0x54, 0x49, 0x4F, 0x4E, 0x3D, 0x30,
0x30, 0x3A, 0x30, 0x30, 0x3A, 0x30, 0x30, 0x2E, 0x30,
0x30, 0x30, 0x30, 0x30, 0x30, 0x30
*/
0x0F, // tag string size
0x00, 0x00, 0x00, 0x45, 0x4E, 0x43, 0x4F,
0x44, 0x45, 0x52, 0x3D, // "ENCODER=" binary string
0x4E, 0x65, 0x77, 0x50, 0x69, 0x70, 0x65, // "NewPipe" binary string
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // ????????
}; };
} }
@@ -377,7 +362,7 @@ public class OggFromWebMWriter implements Closeable {
return addPacketSegment(block.dataSize); return addPacketSegment(block.dataSize);
} }
private boolean addPacketSegment(int size) { private boolean addPacketSegment(final int size) {
if (size > 65025) { if (size > 65025) {
throw new UnsupportedOperationException("page size cannot be larger than 65025"); throw new UnsupportedOperationException("page size cannot be larger than 65025");
} }
@@ -396,8 +381,8 @@ public class OggFromWebMWriter implements Closeable {
return false; // not enough space on the page return false; // not enough space on the page
} }
for (; size > 0; size -= 255) { for (int seg = size; seg > 0; seg -= 255) {
segmentTable[segmentTableSize++] = (byte) Math.min(size, 255); segmentTable[segmentTableSize++] = (byte) Math.min(seg, 255);
} }
if (extra) { if (extra) {
@@ -419,12 +404,13 @@ public class OggFromWebMWriter implements Closeable {
} }
} }
private int calcCrc32(int initialCrc, final byte[] buffer, final int size) { private int calcCrc32(final int initialCrc, final byte[] buffer, final int size) {
int crc = initialCrc;
for (int i = 0; i < size; i++) { for (int i = 0; i < size; i++) {
int reg = (initialCrc >>> 24) & 0xff; int reg = (crc >>> 24) & 0xff;
initialCrc = (initialCrc << 8) ^ crc32Table[reg ^ (buffer[i] & 0xff)]; crc = (crc << 8) ^ crc32Table[reg ^ (buffer[i] & 0xff)];
} }
return initialCrc; return crc;
} }
} }

22
app/src/main/java/org/schabi/newpipe/streams/WebMWriter.java
View File

@@ -151,7 +151,7 @@ public class WebMWriter implements Closeable {
(byte) 0xac, (byte) 0x81, /*info offset*/ 0x43, (byte) 0xac, (byte) 0x81, /*info offset*/ 0x43,
0x4d, (byte) 0xbb, (byte) 0x8b, 0x53, (byte) 0xab, 0x4d, (byte) 0xbb, (byte) 0x8b, 0x53, (byte) 0xab,
(byte) 0x84, 0x16, 0x54, (byte) 0xae, 0x6b, 0x53, (byte) 0xac, (byte) 0x81, (byte) 0x84, 0x16, 0x54, (byte) 0xae, 0x6b, 0x53, (byte) 0xac, (byte) 0x81,
/*tracks offset*/ 0x6a, /*tracks offset*/ 0x56,
0x4d, (byte) 0xbb, (byte) 0x8e, 0x53, (byte) 0xab, (byte) 0x84, 0x1f, 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, 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, 0x4d, (byte) 0xbb, (byte) 0x8e, 0x53, (byte) 0xab, (byte) 0x84, 0x1c, 0x53,
@@ -160,19 +160,11 @@ public class WebMWriter implements Closeable {
/* info */ /* info */
listBuffer.add(new byte[]{ listBuffer.add(new byte[]{
0x15, 0x49, (byte) 0xa9, 0x66, (byte) 0xa2, 0x2a, (byte) 0xd7, (byte) 0xb1 0x15, 0x49, (byte) 0xa9, 0x66, (byte) 0x8e, 0x2a, (byte) 0xd7, (byte) 0xb1
}); });
listBuffer.add(encode(DEFAULT_TIMECODE_SCALE, true)); // this value MUST NOT exceed 4 bytes listBuffer.add(encode(DEFAULT_TIMECODE_SCALE, true)); // this value MUST NOT exceed 4 bytes
listBuffer.add(new byte[]{0x44, (byte) 0x89, (byte) 0x84, listBuffer.add(new byte[]{0x44, (byte) 0x89, (byte) 0x84,
0x00, 0x00, 0x00, 0x00, // info.duration 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 */ /* tracks */
@@ -416,7 +408,7 @@ public class WebMWriter implements Closeable {
} }
} }
private long makeCluster(final SharpStream stream, final long timecode, long offset, private long makeCluster(final SharpStream stream, final long timecode, final long offset,
final boolean create) throws IOException { final boolean create) throws IOException {
ClusterInfo cluster; ClusterInfo cluster;
@@ -426,8 +418,6 @@ public class WebMWriter implements Closeable {
cluster.size = (int) (written - offset - CLUSTER_HEADER_SIZE); cluster.size = (int) (written - offset - CLUSTER_HEADER_SIZE);
} }
offset = written;
if (create) { if (create) {
/* cluster */ /* cluster */
dump(new byte[]{0x1f, 0x43, (byte) 0xb6, 0x75}, stream); dump(new byte[]{0x1f, 0x43, (byte) 0xb6, 0x75}, stream);
@@ -445,7 +435,7 @@ public class WebMWriter implements Closeable {
dump(encode(timecode, true), stream); dump(encode(timecode, true), stream);
} }
return offset; return written;
} }
private void makeEBML(final SharpStream stream) throws IOException { private void makeEBML(final SharpStream stream) throws IOException {
@@ -588,8 +578,10 @@ public class WebMWriter implements Closeable {
return lengthFor(buffer); return lengthFor(buffer);
} }
private void makeEbmlVoid(final SharpStream out, int size, final boolean wipe) private void makeEbmlVoid(final SharpStream out, final int amount, final boolean wipe)
throws IOException { throws IOException {
int size = amount;
/* ebml void */ /* ebml void */
outByteBuffer.putShort(0, (short) 0xec20); outByteBuffer.putShort(0, (short) 0xec20);
outByteBuffer.putShort(2, (short) (size - 4)); outByteBuffer.putShort(2, (short) (size - 4));