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Commit 3691454b by andrewlewis Committed by Oliver Woodman
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Fix resuming after error for CEA-608 SEI in fMP4. 

Also test SEI parsing in FragmentedMp4ExtractorTest.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=147460699
parent 7625c1b8
Inline Side-by-side
Showing with 453 additions and 49 deletions
library/src/androidTest/assets/mp4/sample_fragmented_sei.mp4.0.dump 0 → 100644
seekMap:
isSeekable = false
duration = UNSET TIME
getPosition(0) = 0
numberOfTracks = 3
track 0:
format:
bitrate = -1
id = 1
containerMimeType = null
sampleMimeType = video/avc
maxInputSize = -1
width = 1080
height = 720
frameRate = -1.0
rotationDegrees = 0
pixelWidthHeightRatio = 1.0
channelCount = -1
sampleRate = -1
pcmEncoding = -1
encoderDelay = -1
encoderPadding = -1
subsampleOffsetUs = 9223372036854775807
selectionFlags = 0
language = null
drmInitData = -
initializationData:
data = length 29, hash 4746B5D9
data = length 10, hash 7A0D0F2B
sample count = 30
sample 0:
time = 66000
flags = 1
data = length 38070, hash B58E1AEE
sample 1:
time = 199000
flags = 0
data = length 8340, hash 8AC449FF
sample 2:
time = 132000
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data = length 1295, hash C0DA5090
sample 3:
time = 100000
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data = length 564, hash E5F56C5B
sample 5:
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sample 6:
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sample 7:
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sample 8:
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data = length 467, hash 69806D94
sample 9:
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sample 10:
time = 399000
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sample 11:
time = 367000
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data = length 380, hash 5FED016A
sample 12:
time = 433000
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data = length 455, hash 8A0610
sample 13:
time = 599000
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data = length 5190, hash B9031D8
sample 14:
time = 533000
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data = length 1071, hash 684E7DC8
sample 15:
time = 500000
flags = 0
data = length 653, hash 8494F326
sample 16:
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data = length 485, hash 2CCC85F4
sample 17:
time = 733000
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data = length 4884, hash D16B6A96
sample 18:
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data = length 997, hash 164FF210
sample 19:
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sample 20:
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sample 21:
time = 866000
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sample 22:
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data = length 838, hash 294A3451
sample 23:
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data = length 544, hash FCCE2DE6
sample 24:
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data = length 329, hash A654FFA1
sample 25:
time = 1000000
flags = 0
data = length 1517, hash 5F7EBF8B
sample 26:
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flags = 0
data = length 803, hash 7A5C4C1D
sample 27:
time = 900000
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data = length 415, hash B31BBC3B
sample 28:
time = 967000
flags = 0
data = length 415, hash 850DFEA3
sample 29:
time = 1033000
flags = 0
data = length 619, hash AB5E56CA
track 1:
format:
bitrate = -1
id = 2
containerMimeType = null
sampleMimeType = audio/mp4a-latm
maxInputSize = -1
width = -1
height = -1
frameRate = -1.0
rotationDegrees = -1
pixelWidthHeightRatio = -1.0
channelCount = 1
sampleRate = 44100
pcmEncoding = -1
encoderDelay = -1
encoderPadding = -1
subsampleOffsetUs = 9223372036854775807
selectionFlags = 0
language = und
drmInitData = -
initializationData:
data = length 5, hash 2B7623A
sample count = 46
sample 0:
time = 0
flags = 1
data = length 18, hash 96519432
sample 1:
time = 23000
flags = 1
data = length 4, hash EE9DF
sample 2:
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flags = 1
data = length 4, hash EEDBF
sample 3:
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sample 4:
time = 92000
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data = length 371, hash B9471F94
sample 5:
time = 116000
flags = 1
data = length 373, hash 2AB265CB
sample 6:
time = 139000
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data = length 402, hash 1295477C
sample 7:
time = 162000
flags = 1
data = length 455, hash 2D8146C8
sample 8:
time = 185000
flags = 1
data = length 434, hash F2C5D287
sample 9:
time = 208000
flags = 1
data = length 450, hash 84143FCD
sample 10:
time = 232000
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data = length 429, hash EF769D50
sample 11:
time = 255000
flags = 1
data = length 450, hash EC3DE692
sample 12:
time = 278000
flags = 1
data = length 447, hash 3E519E13
sample 13:
time = 301000
flags = 1
data = length 457, hash 1E4F23A0
sample 14:
time = 325000
flags = 1
data = length 447, hash A439EA97
sample 15:
time = 348000
flags = 1
data = length 456, hash 1E9034C6
sample 16:
time = 371000
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data = length 398, hash 99DB7345
sample 17:
time = 394000
flags = 1
data = length 474, hash 3F05F10A
sample 18:
time = 417000
flags = 1
data = length 416, hash C105EE09
sample 19:
time = 441000
flags = 1
data = length 454, hash 5FDBE458
sample 20:
time = 464000
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data = length 438, hash 41A93AC3
sample 21:
time = 487000
flags = 1
data = length 443, hash 10FDA652
sample 22:
time = 510000
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data = length 412, hash 1F791E25
sample 23:
time = 534000
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data = length 482, hash A6D983D
sample 24:
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data = length 386, hash BED7392F
sample 25:
time = 580000
flags = 1
data = length 463, hash 5309F8C9
sample 26:
time = 603000
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data = length 394, hash 21C7321F
sample 27:
time = 626000
flags = 1
data = length 489, hash 71B4730D
sample 28:
time = 650000
flags = 1
data = length 403, hash D9C6DE89
sample 29:
time = 673000
flags = 1
data = length 447, hash 9B14B73B
sample 30:
time = 696000
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data = length 439, hash 4760D35B
sample 31:
time = 719000
flags = 1
data = length 463, hash 1601F88D
sample 32:
time = 743000
flags = 1
data = length 423, hash D4AE6773
sample 33:
time = 766000
flags = 1
data = length 497, hash A3C674D3
sample 34:
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data = length 419, hash D3734A1F
sample 35:
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sample 36:
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data = length 413, hash 53E7CB9F
sample 37:
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data = length 445, hash D15B0E39
sample 38:
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sample 39:
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sample 40:
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sample 41:
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data = length 537, hash ED58CF7B
sample 42:
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data = length 458, hash 51CDAA10
sample 43:
time = 998000
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sample 44:
time = 1021000
flags = 1
data = length 446, hash D6735B8A
sample 45:
time = 1044000
flags = 1
data = length 10, hash A453EEBE
track 3:
format:
bitrate = -1
id = null
containerMimeType = null
sampleMimeType = application/cea-608
maxInputSize = -1
width = -1
height = -1
frameRate = -1.0
rotationDegrees = -1
pixelWidthHeightRatio = -1.0
channelCount = -1
sampleRate = -1
pcmEncoding = -1
encoderDelay = -1
encoderPadding = -1
subsampleOffsetUs = 9223372036854775807
selectionFlags = 0
language = null
drmInitData = -
initializationData:
sample count = 0
tracksEnded = true
library/src/androidTest/java/com/google/android/exoplayer2/extractor/mp4/FragmentedMp4ExtractorTest.java
...@@ -25,21 +25,32 @@ import com.google.android.exoplayer2.testutil.TestUtil; ...@@ -25,21 +25,32 @@ import com.google.android.exoplayer2.testutil.TestUtil;
*/ */
public final class FragmentedMp4ExtractorTest extends InstrumentationTestCase { public final class FragmentedMp4ExtractorTest extends InstrumentationTestCase {
private static final TestUtil.ExtractorFactory EXTRACTOR_FACTORY =
new TestUtil.ExtractorFactory() {
@Override
public Extractor create() {
return new FragmentedMp4Extractor();
}
};
public void testSample() throws Exception { public void testSample() throws Exception {
TestUtil.assertOutput(EXTRACTOR_FACTORY, "mp4/sample_fragmented.mp4", getInstrumentation()); TestUtil.assertOutput(getExtractorFactory(), "mp4/sample_fragmented.mp4", getInstrumentation());
}
public void testSampleWithSeiPayloadParsing() throws Exception {
// Enabling the CEA-608 track enables SEI payload parsing.
TestUtil.assertOutput(getExtractorFactory(FragmentedMp4Extractor.FLAG_ENABLE_CEA608_TRACK),
"mp4/sample_fragmented_sei.mp4", getInstrumentation());
} }
public void testAtomWithZeroSize() throws Exception { public void testAtomWithZeroSize() throws Exception {
TestUtil.assertThrows(EXTRACTOR_FACTORY, "mp4/sample_fragmented_zero_size_atom.mp4", TestUtil.assertThrows(getExtractorFactory(), "mp4/sample_fragmented_zero_size_atom.mp4",
getInstrumentation(), ParserException.class); getInstrumentation(), ParserException.class);
} }
private static TestUtil.ExtractorFactory getExtractorFactory() {
return getExtractorFactory(0);
}
private static TestUtil.ExtractorFactory getExtractorFactory(final int flags) {
return new TestUtil.ExtractorFactory() {
@Override
public Extractor create() {
return new FragmentedMp4Extractor(flags, null);
}
};
}
} }
library/src/main/java/com/google/android/exoplayer2/extractor/mp4/FragmentedMp4Extractor.java
...@@ -106,7 +106,6 @@ public final class FragmentedMp4Extractor implements Extractor { ...@@ -106,7 +106,6 @@ public final class FragmentedMp4Extractor implements Extractor {
private static final String TAG = "FragmentedMp4Extractor"; private static final String TAG = "FragmentedMp4Extractor";
private static final int SAMPLE_GROUP_TYPE_seig = Util.getIntegerCodeForString("seig"); private static final int SAMPLE_GROUP_TYPE_seig = Util.getIntegerCodeForString("seig");
private static final int NAL_UNIT_TYPE_SEI = 6; // Supplemental enhancement information
private static final byte[] PIFF_SAMPLE_ENCRYPTION_BOX_EXTENDED_TYPE = private static final byte[] PIFF_SAMPLE_ENCRYPTION_BOX_EXTENDED_TYPE =
new byte[] {-94, 57, 79, 82, 90, -101, 79, 20, -94, 68, 108, 66, 124, 100, -115, -12}; new byte[] {-94, 57, 79, 82, 90, -101, 79, 20, -94, 68, 108, 66, 124, 100, -115, -12};
...@@ -127,8 +126,8 @@ public final class FragmentedMp4Extractor implements Extractor { ...@@ -127,8 +126,8 @@ public final class FragmentedMp4Extractor implements Extractor {
// Temporary arrays. // Temporary arrays.
private final ParsableByteArray nalStartCode; private final ParsableByteArray nalStartCode;
private final ParsableByteArray nalLength; private final ParsableByteArray nalPrefix;
private final ParsableByteArray nalPayload; private final ParsableByteArray nalBuffer;
private final ParsableByteArray encryptionSignalByte; private final ParsableByteArray encryptionSignalByte;
// Adjusts sample timestamps. // Adjusts sample timestamps.
...@@ -154,6 +153,7 @@ public final class FragmentedMp4Extractor implements Extractor { ...@@ -154,6 +153,7 @@ public final class FragmentedMp4Extractor implements Extractor {
private int sampleSize; private int sampleSize;
private int sampleBytesWritten; private int sampleBytesWritten;
private int sampleCurrentNalBytesRemaining; private int sampleCurrentNalBytesRemaining;
private boolean processSeiNalUnitPayload;
// Extractor output. // Extractor output.
private ExtractorOutput extractorOutput; private ExtractorOutput extractorOutput;
...@@ -195,8 +195,8 @@ public final class FragmentedMp4Extractor implements Extractor { ...@@ -195,8 +195,8 @@ public final class FragmentedMp4Extractor implements Extractor {
this.sideloadedTrack = sideloadedTrack; this.sideloadedTrack = sideloadedTrack;
atomHeader = new ParsableByteArray(Atom.LONG_HEADER_SIZE); atomHeader = new ParsableByteArray(Atom.LONG_HEADER_SIZE);
nalStartCode = new ParsableByteArray(NalUnitUtil.NAL_START_CODE); nalStartCode = new ParsableByteArray(NalUnitUtil.NAL_START_CODE);
nalLength = new ParsableByteArray(4); nalPrefix = new ParsableByteArray(5);
nalPayload = new ParsableByteArray(1); nalBuffer = new ParsableByteArray();
encryptionSignalByte = new ParsableByteArray(1); encryptionSignalByte = new ParsableByteArray(1);
extendedTypeScratch = new byte[16]; extendedTypeScratch = new byte[16];
containerAtoms = new Stack<>(); containerAtoms = new Stack<>();
...@@ -1066,49 +1066,47 @@ public final class FragmentedMp4Extractor implements Extractor { ...@@ -1066,49 +1066,47 @@ public final class FragmentedMp4Extractor implements Extractor {
if (track.nalUnitLengthFieldLength != 0) { if (track.nalUnitLengthFieldLength != 0) {
// Zero the top three bytes of the array that we'll use to decode nal unit lengths, in case // Zero the top three bytes of the array that we'll use to decode nal unit lengths, in case
// they're only 1 or 2 bytes long. // they're only 1 or 2 bytes long.
byte[] nalLengthData = nalLength.data; byte[] nalPrefixData = nalPrefix.data;
nalLengthData[0] = 0; nalPrefixData[0] = 0;
nalLengthData[1] = 0; nalPrefixData[1] = 0;
nalLengthData[2] = 0; nalPrefixData[2] = 0;
int nalUnitLengthFieldLength = track.nalUnitLengthFieldLength; int nalUnitPrefixLength = track.nalUnitLengthFieldLength + 1;
int nalUnitLengthFieldLengthDiff = 4 - track.nalUnitLengthFieldLength; int nalUnitLengthFieldLengthDiff = 4 - track.nalUnitLengthFieldLength;
// NAL units are length delimited, but the decoder requires start code delimited units. // NAL units are length delimited, but the decoder requires start code delimited units.
// Loop until we've written the sample to the track output, replacing length delimiters with // Loop until we've written the sample to the track output, replacing length delimiters with
// start codes as we encounter them. // start codes as we encounter them.
while (sampleBytesWritten < sampleSize) { while (sampleBytesWritten < sampleSize) {
if (sampleCurrentNalBytesRemaining == 0) { if (sampleCurrentNalBytesRemaining == 0) {
// Read the NAL length so that we know where we find the next one. // Read the NAL length so that we know where we find the next one, and its type.
input.readFully(nalLength.data, nalUnitLengthFieldLengthDiff, nalUnitLengthFieldLength); input.readFully(nalPrefixData, nalUnitLengthFieldLengthDiff, nalUnitPrefixLength);
nalLength.setPosition(0); nalPrefix.setPosition(0);
sampleCurrentNalBytesRemaining = nalLength.readUnsignedIntToInt(); sampleCurrentNalBytesRemaining = nalPrefix.readUnsignedIntToInt() - 1;
// Write a start code for the current NAL unit. // Write a start code for the current NAL unit.
nalStartCode.setPosition(0); nalStartCode.setPosition(0);
output.sampleData(nalStartCode, 4); output.sampleData(nalStartCode, 4);
sampleBytesWritten += 4; // Write the NAL unit type byte.
output.sampleData(nalPrefix, 1);
processSeiNalUnitPayload = cea608TrackOutput != null
&& NalUnitUtil.isNalUnitSei(nalPrefixData[4]);
sampleBytesWritten += 5;
sampleSize += nalUnitLengthFieldLengthDiff; sampleSize += nalUnitLengthFieldLengthDiff;
if (cea608TrackOutput != null) {
// Peek the NAL unit type byte.
input.peekFully(nalPayload.data, 0, 1);
if ((nalPayload.data[0] & 0x1F) == NAL_UNIT_TYPE_SEI) {
// Read the whole SEI NAL unit into nalWrapper, including the NAL unit type byte.
nalPayload.reset(sampleCurrentNalBytesRemaining);
byte[] nalPayloadData = nalPayload.data;
input.readFully(nalPayloadData, 0, sampleCurrentNalBytesRemaining);
// Write the SEI unit straight to the output.
output.sampleData(nalPayload, sampleCurrentNalBytesRemaining);
sampleBytesWritten += sampleCurrentNalBytesRemaining;
sampleCurrentNalBytesRemaining = 0;
// Unescape and process the SEI unit.
int unescapedLength = NalUnitUtil.unescapeStream(nalPayloadData, nalPayload.limit());
nalPayload.setPosition(1); // Skip the NAL unit type byte.
nalPayload.setLimit(unescapedLength);
CeaUtil.consume(fragment.getSamplePresentationTime(sampleIndex) * 1000L, nalPayload,
cea608TrackOutput);
}
}
} else { } else {
// Write the payload of the NAL unit. int writtenBytes;
int writtenBytes = output.sampleData(input, sampleCurrentNalBytesRemaining, false); if (processSeiNalUnitPayload) {
// Read and write the payload of the SEI NAL unit.
nalBuffer.reset(sampleCurrentNalBytesRemaining);
input.readFully(nalBuffer.data, 0, sampleCurrentNalBytesRemaining);
output.sampleData(nalBuffer, sampleCurrentNalBytesRemaining);
writtenBytes = sampleCurrentNalBytesRemaining;
// Unescape and process the SEI NAL unit.
int unescapedLength = NalUnitUtil.unescapeStream(nalBuffer.data, nalBuffer.limit());
nalBuffer.reset(unescapedLength);
CeaUtil.consume(fragment.getSamplePresentationTime(sampleIndex) * 1000L, nalBuffer,
cea608TrackOutput);
} else {
// Write the payload of the NAL unit.
writtenBytes = output.sampleData(input, sampleCurrentNalBytesRemaining, false);
}
sampleBytesWritten += writtenBytes; sampleBytesWritten += writtenBytes;
sampleCurrentNalBytesRemaining -= writtenBytes; sampleCurrentNalBytesRemaining -= writtenBytes;
} }
......
library/src/main/java/com/google/android/exoplayer2/util/NalUnitUtil.java
...@@ -103,7 +103,8 @@ public final class NalUnitUtil { ...@@ -103,7 +103,8 @@ public final class NalUnitUtil {
2f 2f
}; };
private static final int NAL_UNIT_TYPE_SPS = 7; private static final int NAL_UNIT_TYPE_SEI = 6; // Supplemental enhancement information
private static final int NAL_UNIT_TYPE_SPS = 7; // Sequence parameter set
private static final Object scratchEscapePositionsLock = new Object(); private static final Object scratchEscapePositionsLock = new Object();
...@@ -198,6 +199,17 @@ public final class NalUnitUtil { ...@@ -198,6 +199,17 @@ public final class NalUnitUtil {
} }
/** /**
* Returns whether the NAL unit with the specified header contains supplemental enhancement
* information.
*
* @param nalUnitHeader The header of the NAL unit (first byte of nal_unit()).
* @return Whether the NAL unit with the specified header is an SEI NAL unit.
*/
public static boolean isNalUnitSei(byte nalUnitHeader) {
return (nalUnitHeader & 0x1F) == NAL_UNIT_TYPE_SEI;
}
/**
* Returns the type of the NAL unit in {@code data} that starts at {@code offset}. * Returns the type of the NAL unit in {@code data} that starts at {@code offset}.
* *
* @param data The data to search. * @param data The data to search.
...@@ -297,7 +309,8 @@ public final class NalUnitUtil { ...@@ -297,7 +309,8 @@ public final class NalUnitUtil {
int frameCropRightOffset = data.readUnsignedExpGolombCodedInt(); int frameCropRightOffset = data.readUnsignedExpGolombCodedInt();
int frameCropTopOffset = data.readUnsignedExpGolombCodedInt(); int frameCropTopOffset = data.readUnsignedExpGolombCodedInt();
int frameCropBottomOffset = data.readUnsignedExpGolombCodedInt(); int frameCropBottomOffset = data.readUnsignedExpGolombCodedInt();
int cropUnitX, cropUnitY; int cropUnitX;
int cropUnitY;
if (chromaFormatIdc == 0) { if (chromaFormatIdc == 0) {
cropUnitX = 1; cropUnitX = 1;
cropUnitY = 2 - (frameMbsOnlyFlag ? 1 : 0); cropUnitY = 2 - (frameMbsOnlyFlag ? 1 : 0);
......
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