Java 类com.google.android.exoplayer2.extractor.GaplessInfoHolder 实例源码

项目：videoPickPlayer 文件：AtomParsers.java

/**
 * Parses a udta atom.
 *
 * @param udtaAtom The udta (user data) atom to decode.
 * @param isQuickTime True for QuickTime media. False otherwise.
 * @param out {@link GaplessInfoHolder} to populate with gapless playback information.
 */
public static void parseUdta(Atom.LeafAtom udtaAtom, boolean isQuickTime, GaplessInfoHolder out) {
  if (isQuickTime) {
    // Meta boxes are regular boxes rather than full boxes in QuickTime. For now, don't try and
    // decode one.
    return;
  }
  ParsableByteArray udtaData = udtaAtom.data;
  udtaData.setPosition(Atom.HEADER_SIZE);
  while (udtaData.bytesLeft() >= Atom.HEADER_SIZE) {
    int atomSize = udtaData.readInt();
    int atomType = udtaData.readInt();
    if (atomType == Atom.TYPE_meta) {
      udtaData.setPosition(udtaData.getPosition() - Atom.HEADER_SIZE);
      udtaData.setLimit(udtaData.getPosition() + atomSize);
      parseMetaAtom(udtaData, out);
      break;
    }
    udtaData.skipBytes(atomSize - Atom.HEADER_SIZE);
  }
}

项目：videoPickPlayer 文件：AtomParsers.java

private static void parseMetaAtom(ParsableByteArray data, GaplessInfoHolder out) {
  data.skipBytes(Atom.FULL_HEADER_SIZE);
  ParsableByteArray ilst = new ParsableByteArray();
  while (data.bytesLeft() >= Atom.HEADER_SIZE) {
    int payloadSize = data.readInt() - Atom.HEADER_SIZE;
    int atomType = data.readInt();
    if (atomType == Atom.TYPE_ilst) {
      ilst.reset(data.data, data.getPosition() + payloadSize);
      ilst.setPosition(data.getPosition());
      parseIlst(ilst, out);
      if (out.hasGaplessInfo()) {
        return;
      }
    }
    data.skipBytes(payloadSize);
  }
}

项目：Exoplayer2Radio 文件：Mp3Extractor.java

/**
 * Constructs a new {@link Mp3Extractor}.
 *
 * @param flags Flags that control the extractor's behavior.
 * @param forcedFirstSampleTimestampUs A timestamp to force for the first sample, or
 *     {@link C#TIME_UNSET} if forcing is not required.
 */
public Mp3Extractor(@Flags int flags, long forcedFirstSampleTimestampUs) {
  this.flags = flags;
  this.forcedFirstSampleTimestampUs = forcedFirstSampleTimestampUs;
  scratch = new ParsableByteArray(SCRATCH_LENGTH);
  synchronizedHeader = new MpegAudioHeader();
  gaplessInfoHolder = new GaplessInfoHolder();
  basisTimeUs = C.TIME_UNSET;
}

项目：Exoplayer2Radio 文件：Mp3Extractor.java

/**
 * Peeks ID3 data from the input, including gapless playback information.
 *
 * @param input The {@link ExtractorInput} from which data should be peeked.
 * @throws IOException If an error occurred peeking from the input.
 * @throws InterruptedException If the thread was interrupted.
 */
private void peekId3Data(ExtractorInput input) throws IOException, InterruptedException {
  int peekedId3Bytes = 0;
  while (true) {
    input.peekFully(scratch.data, 0, Id3Decoder.ID3_HEADER_LENGTH);
    scratch.setPosition(0);
    if (scratch.readUnsignedInt24() != Id3Decoder.ID3_TAG) {
      // Not an ID3 tag.
      break;
    }
    scratch.skipBytes(3); // Skip major version, minor version and flags.
    int framesLength = scratch.readSynchSafeInt();
    int tagLength = Id3Decoder.ID3_HEADER_LENGTH + framesLength;

    if (metadata == null) {
      byte[] id3Data = new byte[tagLength];
      System.arraycopy(scratch.data, 0, id3Data, 0, Id3Decoder.ID3_HEADER_LENGTH);
      input.peekFully(id3Data, Id3Decoder.ID3_HEADER_LENGTH, framesLength);
      // We need to parse enough ID3 metadata to retrieve any gapless playback information even
      // if ID3 metadata parsing is disabled.
      Id3Decoder.FramePredicate id3FramePredicate = (flags & FLAG_DISABLE_ID3_METADATA) != 0
          ? GaplessInfoHolder.GAPLESS_INFO_ID3_FRAME_PREDICATE : null;
      metadata = new Id3Decoder(id3FramePredicate).decode(id3Data, tagLength);
      if (metadata != null) {
        gaplessInfoHolder.setFromMetadata(metadata);
      }
    } else {
      input.advancePeekPosition(framesLength);
    }

    peekedId3Bytes += tagLength;
  }

  input.resetPeekPosition();
  input.advancePeekPosition(peekedId3Bytes);
}

项目：K-Sonic 文件：Mp3Extractor.java

/**
 * Constructs a new {@link Mp3Extractor}.
 *
 * @param flags Flags that control the extractor's behavior.
 * @param forcedFirstSampleTimestampUs A timestamp to force for the first sample, or
 *     {@link C#TIME_UNSET} if forcing is not required.
 */
public Mp3Extractor(@Flags int flags, long forcedFirstSampleTimestampUs) {
  this.flags = flags;
  this.forcedFirstSampleTimestampUs = forcedFirstSampleTimestampUs;
  scratch = new ParsableByteArray(SCRATCH_LENGTH);
  synchronizedHeader = new MpegAudioHeader();
  gaplessInfoHolder = new GaplessInfoHolder();
  basisTimeUs = C.TIME_UNSET;
}

项目：K-Sonic 文件：Mp3Extractor.java

/**
 * Peeks ID3 data from the input, including gapless playback information.
 *
 * @param input The {@link ExtractorInput} from which data should be peeked.
 * @throws IOException If an error occurred peeking from the input.
 * @throws InterruptedException If the thread was interrupted.
 */
private void peekId3Data(ExtractorInput input) throws IOException, InterruptedException {
  int peekedId3Bytes = 0;
  while (true) {
    input.peekFully(scratch.data, 0, Id3Decoder.ID3_HEADER_LENGTH);
    scratch.setPosition(0);
    if (scratch.readUnsignedInt24() != Id3Decoder.ID3_TAG) {
      // Not an ID3 tag.
      break;
    }
    scratch.skipBytes(3); // Skip major version, minor version and flags.
    int framesLength = scratch.readSynchSafeInt();
    int tagLength = Id3Decoder.ID3_HEADER_LENGTH + framesLength;

    if (metadata == null) {
      byte[] id3Data = new byte[tagLength];
      System.arraycopy(scratch.data, 0, id3Data, 0, Id3Decoder.ID3_HEADER_LENGTH);
      input.peekFully(id3Data, Id3Decoder.ID3_HEADER_LENGTH, framesLength);
      // We need to parse enough ID3 metadata to retrieve any gapless playback information even
      // if ID3 metadata parsing is disabled.
      Id3Decoder.FramePredicate id3FramePredicate = (flags & FLAG_DISABLE_ID3_METADATA) != 0
          ? GaplessInfoHolder.GAPLESS_INFO_ID3_FRAME_PREDICATE : null;
      metadata = new Id3Decoder(id3FramePredicate).decode(id3Data, tagLength);
      if (metadata != null) {
        gaplessInfoHolder.setFromMetadata(metadata);
      }
    } else {
      input.advancePeekPosition(framesLength);
    }

    peekedId3Bytes += tagLength;
  }

  input.resetPeekPosition();
  input.advancePeekPosition(peekedId3Bytes);
}

项目：videoPickPlayer 文件：AtomParsers.java

private static void parseIlst(ParsableByteArray ilst, GaplessInfoHolder out) {
  while (ilst.bytesLeft() > 0) {
    int position = ilst.getPosition();
    int endPosition = position + ilst.readInt();
    int type = ilst.readInt();
    if (type == Atom.TYPE_DASHES) {
      String lastCommentMean = null;
      String lastCommentName = null;
      String lastCommentData = null;
      while (ilst.getPosition() < endPosition) {
        int length = ilst.readInt() - Atom.FULL_HEADER_SIZE;
        int key = ilst.readInt();
        ilst.skipBytes(4);
        if (key == Atom.TYPE_mean) {
          lastCommentMean = ilst.readString(length);
        } else if (key == Atom.TYPE_name) {
          lastCommentName = ilst.readString(length);
        } else if (key == Atom.TYPE_data) {
          ilst.skipBytes(4);
          lastCommentData = ilst.readString(length - 4);
        } else {
          ilst.skipBytes(length);
        }
      }
      if (lastCommentName != null && lastCommentData != null
          && "com.apple.iTunes".equals(lastCommentMean)) {
        out.setFromComment(lastCommentName, lastCommentData);
        break;
      }
    } else {
      ilst.setPosition(endPosition);
    }
  }
}

项目：videoPickPlayer 文件：Mp3Extractor.java

/**
 * Constructs a new {@link Mp3Extractor}.
 *
 * @param forcedFirstSampleTimestampUs A timestamp to force for the first sample, or
 *     {@link C#TIME_UNSET} if forcing is not required.
 */
public Mp3Extractor(long forcedFirstSampleTimestampUs) {
  this.forcedFirstSampleTimestampUs = forcedFirstSampleTimestampUs;
  scratch = new ParsableByteArray(4);
  synchronizedHeader = new MpegAudioHeader();
  gaplessInfoHolder = new GaplessInfoHolder();
  basisTimeUs = C.TIME_UNSET;
}

项目：videoPickPlayer 文件：Id3Util.java

/**
 * Peeks data from the input and parses ID3 metadata.
 *
 * @param input The {@link ExtractorInput} from which data should be peeked.
 * @param out The {@link GaplessInfoHolder} to populate.
 * @throws IOException If an error occurred peeking from the input.
 * @throws InterruptedException If the thread was interrupted.
 */
public static void parseId3(ExtractorInput input, GaplessInfoHolder out)
    throws IOException, InterruptedException {
  ParsableByteArray scratch = new ParsableByteArray(10);
  int peekedId3Bytes = 0;
  while (true) {
    input.peekFully(scratch.data, 0, 10);
    scratch.setPosition(0);
    if (scratch.readUnsignedInt24() != ID3_TAG) {
      break;
    }

    int majorVersion = scratch.readUnsignedByte();
    int minorVersion = scratch.readUnsignedByte();
    int flags = scratch.readUnsignedByte();
    int length = scratch.readSynchSafeInt();
    if (!out.hasGaplessInfo() && canParseMetadata(majorVersion, minorVersion, flags, length)) {
      byte[] frame = new byte[length];
      input.peekFully(frame, 0, length);
      parseGaplessInfo(new ParsableByteArray(frame), majorVersion, flags, out);
    } else {
      input.advancePeekPosition(length);
    }

    peekedId3Bytes += 10 + length;
  }
  input.resetPeekPosition();
  input.advancePeekPosition(peekedId3Bytes);
}

项目：transistor 文件：Mp3Extractor.java

/**
 * @param flags Flags that control the extractor's behavior.
 * @param forcedFirstSampleTimestampUs A timestamp to force for the first sample, or
 *     {@link C#TIME_UNSET} if forcing is not required.
 */
public Mp3Extractor(@Flags int flags, long forcedFirstSampleTimestampUs) {
  this.flags = flags;
  this.forcedFirstSampleTimestampUs = forcedFirstSampleTimestampUs;
  scratch = new ParsableByteArray(SCRATCH_LENGTH);
  synchronizedHeader = new MpegAudioHeader();
  gaplessInfoHolder = new GaplessInfoHolder();
  basisTimeUs = C.TIME_UNSET;
}

项目：transistor 文件：Mp3Extractor.java

/**
 * Peeks ID3 data from the input, including gapless playback information.
 *
 * @param input The {@link ExtractorInput} from which data should be peeked.
 * @throws IOException If an error occurred peeking from the input.
 * @throws InterruptedException If the thread was interrupted.
 */
private void peekId3Data(ExtractorInput input) throws IOException, InterruptedException {
  int peekedId3Bytes = 0;
  while (true) {
    input.peekFully(scratch.data, 0, Id3Decoder.ID3_HEADER_LENGTH);
    scratch.setPosition(0);
    if (scratch.readUnsignedInt24() != Id3Decoder.ID3_TAG) {
      // Not an ID3 tag.
      break;
    }
    scratch.skipBytes(3); // Skip major version, minor version and flags.
    int framesLength = scratch.readSynchSafeInt();
    int tagLength = Id3Decoder.ID3_HEADER_LENGTH + framesLength;

    if (metadata == null) {
      byte[] id3Data = new byte[tagLength];
      System.arraycopy(scratch.data, 0, id3Data, 0, Id3Decoder.ID3_HEADER_LENGTH);
      input.peekFully(id3Data, Id3Decoder.ID3_HEADER_LENGTH, framesLength);
      // We need to parse enough ID3 metadata to retrieve any gapless playback information even
      // if ID3 metadata parsing is disabled.
      Id3Decoder.FramePredicate id3FramePredicate = (flags & FLAG_DISABLE_ID3_METADATA) != 0
          ? GaplessInfoHolder.GAPLESS_INFO_ID3_FRAME_PREDICATE : null;
      metadata = new Id3Decoder(id3FramePredicate).decode(id3Data, tagLength);
      if (metadata != null) {
        gaplessInfoHolder.setFromMetadata(metadata);
      }
    } else {
      input.advancePeekPosition(framesLength);
    }

    peekedId3Bytes += tagLength;
  }

  input.resetPeekPosition();
  input.advancePeekPosition(peekedId3Bytes);
}

项目：Exoplayer2Radio 文件：Mp4Extractor.java

/**
 * Updates the stored track metadata to reflect the contents of the specified moov atom.
 */
private void processMoovAtom(ContainerAtom moov) throws ParserException {
  long durationUs = C.TIME_UNSET;
  List<Mp4Track> tracks = new ArrayList<>();
  long earliestSampleOffset = Long.MAX_VALUE;

  Metadata metadata = null;
  GaplessInfoHolder gaplessInfoHolder = new GaplessInfoHolder();
  Atom.LeafAtom udta = moov.getLeafAtomOfType(Atom.TYPE_udta);
  if (udta != null) {
    metadata = AtomParsers.parseUdta(udta, isQuickTime);
    if (metadata != null) {
      gaplessInfoHolder.setFromMetadata(metadata);
    }
  }

  for (int i = 0; i < moov.containerChildren.size(); i++) {
    Atom.ContainerAtom atom = moov.containerChildren.get(i);
    if (atom.type != Atom.TYPE_trak) {
      continue;
    }

    Track track = AtomParsers.parseTrak(atom, moov.getLeafAtomOfType(Atom.TYPE_mvhd),
        C.TIME_UNSET, null, isQuickTime);
    if (track == null) {
      continue;
    }

    Atom.ContainerAtom stblAtom = atom.getContainerAtomOfType(Atom.TYPE_mdia)
        .getContainerAtomOfType(Atom.TYPE_minf).getContainerAtomOfType(Atom.TYPE_stbl);
    TrackSampleTable trackSampleTable = AtomParsers.parseStbl(track, stblAtom, gaplessInfoHolder);
    if (trackSampleTable.sampleCount == 0) {
      continue;
    }

    Mp4Track mp4Track = new Mp4Track(track, trackSampleTable,
        extractorOutput.track(i, track.type));
    // Each sample has up to three bytes of overhead for the start code that replaces its length.
    // Allow ten source samples per output sample, like the platform extractor.
    int maxInputSize = trackSampleTable.maximumSize + 3 * 10;
    Format format = track.format.copyWithMaxInputSize(maxInputSize);
    if (track.type == C.TRACK_TYPE_AUDIO) {
      if (gaplessInfoHolder.hasGaplessInfo()) {
        format = format.copyWithGaplessInfo(gaplessInfoHolder.encoderDelay,
            gaplessInfoHolder.encoderPadding);
      }
      if (metadata != null) {
        format = format.copyWithMetadata(metadata);
      }
    }
    mp4Track.trackOutput.format(format);

    durationUs = Math.max(durationUs, track.durationUs);
    tracks.add(mp4Track);

    long firstSampleOffset = trackSampleTable.offsets[0];
    if (firstSampleOffset < earliestSampleOffset) {
      earliestSampleOffset = firstSampleOffset;
    }
  }
  this.durationUs = durationUs;
  this.tracks = tracks.toArray(new Mp4Track[tracks.size()]);
  extractorOutput.endTracks();
  extractorOutput.seekMap(this);
}

项目：K-Sonic 文件：Mp4Extractor.java

/**
 * Updates the stored track metadata to reflect the contents of the specified moov atom.
 */
private void processMoovAtom(ContainerAtom moov) throws ParserException {
  long durationUs = C.TIME_UNSET;
  List<Mp4Track> tracks = new ArrayList<>();
  long earliestSampleOffset = Long.MAX_VALUE;

  Metadata metadata = null;
  GaplessInfoHolder gaplessInfoHolder = new GaplessInfoHolder();
  Atom.LeafAtom udta = moov.getLeafAtomOfType(Atom.TYPE_udta);
  if (udta != null) {
    metadata = AtomParsers.parseUdta(udta, isQuickTime);
    if (metadata != null) {
      gaplessInfoHolder.setFromMetadata(metadata);
    }
  }

  for (int i = 0; i < moov.containerChildren.size(); i++) {
    Atom.ContainerAtom atom = moov.containerChildren.get(i);
    if (atom.type != Atom.TYPE_trak) {
      continue;
    }

    Track track = AtomParsers.parseTrak(atom, moov.getLeafAtomOfType(Atom.TYPE_mvhd),
        C.TIME_UNSET, null, isQuickTime);
    if (track == null) {
      continue;
    }

    Atom.ContainerAtom stblAtom = atom.getContainerAtomOfType(Atom.TYPE_mdia)
        .getContainerAtomOfType(Atom.TYPE_minf).getContainerAtomOfType(Atom.TYPE_stbl);
    TrackSampleTable trackSampleTable = AtomParsers.parseStbl(track, stblAtom, gaplessInfoHolder);
    if (trackSampleTable.sampleCount == 0) {
      continue;
    }

    Mp4Track mp4Track = new Mp4Track(track, trackSampleTable,
        extractorOutput.track(i, track.type));
    // Each sample has up to three bytes of overhead for the start code that replaces its length.
    // Allow ten source samples per output sample, like the platform extractor.
    int maxInputSize = trackSampleTable.maximumSize + 3 * 10;
    Format format = track.format.copyWithMaxInputSize(maxInputSize);
    if (track.type == C.TRACK_TYPE_AUDIO) {
      if (gaplessInfoHolder.hasGaplessInfo()) {
        format = format.copyWithGaplessInfo(gaplessInfoHolder.encoderDelay,
            gaplessInfoHolder.encoderPadding);
      }
      if (metadata != null) {
        format = format.copyWithMetadata(metadata);
      }
    }
    mp4Track.trackOutput.format(format);

    durationUs = Math.max(durationUs, track.durationUs);
    tracks.add(mp4Track);

    long firstSampleOffset = trackSampleTable.offsets[0];
    if (firstSampleOffset < earliestSampleOffset) {
      earliestSampleOffset = firstSampleOffset;
    }
  }
  this.durationUs = durationUs;
  this.tracks = tracks.toArray(new Mp4Track[tracks.size()]);
  extractorOutput.endTracks();
  extractorOutput.seekMap(this);
}

项目：videoPickPlayer 文件：Mp4Extractor.java

/**
 * Updates the stored track metadata to reflect the contents of the specified moov atom.
 */
private void processMoovAtom(ContainerAtom moov) throws ParserException {
  long durationUs = C.TIME_UNSET;
  List<Mp4Track> tracks = new ArrayList<>();
  long earliestSampleOffset = Long.MAX_VALUE;

  GaplessInfoHolder gaplessInfoHolder = new GaplessInfoHolder();
  Atom.LeafAtom udta = moov.getLeafAtomOfType(Atom.TYPE_udta);
  if (udta != null) {
    AtomParsers.parseUdta(udta, isQuickTime, gaplessInfoHolder);
  }

  for (int i = 0; i < moov.containerChildren.size(); i++) {
    Atom.ContainerAtom atom = moov.containerChildren.get(i);
    if (atom.type != Atom.TYPE_trak) {
      continue;
    }

    Track track = AtomParsers.parseTrak(atom, moov.getLeafAtomOfType(Atom.TYPE_mvhd),
        C.TIME_UNSET, null, isQuickTime);
    if (track == null) {
      continue;
    }

    Atom.ContainerAtom stblAtom = atom.getContainerAtomOfType(Atom.TYPE_mdia)
        .getContainerAtomOfType(Atom.TYPE_minf).getContainerAtomOfType(Atom.TYPE_stbl);
    TrackSampleTable trackSampleTable = AtomParsers.parseStbl(track, stblAtom, gaplessInfoHolder);
    if (trackSampleTable.sampleCount == 0) {
      continue;
    }

    Mp4Track mp4Track = new Mp4Track(track, trackSampleTable, extractorOutput.track(i));
    // Each sample has up to three bytes of overhead for the start code that replaces its length.
    // Allow ten source samples per output sample, like the platform extractor.
    int maxInputSize = trackSampleTable.maximumSize + 3 * 10;
    Format format = track.format.copyWithMaxInputSize(maxInputSize);
    if (track.type == C.TRACK_TYPE_AUDIO && gaplessInfoHolder.hasGaplessInfo()) {
      format = format.copyWithGaplessInfo(gaplessInfoHolder.encoderDelay,
          gaplessInfoHolder.encoderPadding);
    }
    mp4Track.trackOutput.format(format);

    durationUs = Math.max(durationUs, track.durationUs);
    tracks.add(mp4Track);

    long firstSampleOffset = trackSampleTable.offsets[0];
    if (firstSampleOffset < earliestSampleOffset) {
      earliestSampleOffset = firstSampleOffset;
    }
  }
  this.durationUs = durationUs;
  this.tracks = tracks.toArray(new Mp4Track[tracks.size()]);
  extractorOutput.endTracks();
  extractorOutput.seekMap(this);
}

项目：transistor 文件：Mp4Extractor.java

/**
 * Updates the stored track metadata to reflect the contents of the specified moov atom.
 */
private void processMoovAtom(ContainerAtom moov) throws ParserException {
  long durationUs = C.TIME_UNSET;
  List<Mp4Track> tracks = new ArrayList<>();
  long earliestSampleOffset = Long.MAX_VALUE;

  Metadata metadata = null;
  GaplessInfoHolder gaplessInfoHolder = new GaplessInfoHolder();
  Atom.LeafAtom udta = moov.getLeafAtomOfType(Atom.TYPE_udta);
  if (udta != null) {
    metadata = AtomParsers.parseUdta(udta, isQuickTime);
    if (metadata != null) {
      gaplessInfoHolder.setFromMetadata(metadata);
    }
  }

  for (int i = 0; i < moov.containerChildren.size(); i++) {
    Atom.ContainerAtom atom = moov.containerChildren.get(i);
    if (atom.type != Atom.TYPE_trak) {
      continue;
    }

    Track track = AtomParsers.parseTrak(atom, moov.getLeafAtomOfType(Atom.TYPE_mvhd),
        C.TIME_UNSET, null, (flags & FLAG_WORKAROUND_IGNORE_EDIT_LISTS) != 0, isQuickTime);
    if (track == null) {
      continue;
    }

    Atom.ContainerAtom stblAtom = atom.getContainerAtomOfType(Atom.TYPE_mdia)
        .getContainerAtomOfType(Atom.TYPE_minf).getContainerAtomOfType(Atom.TYPE_stbl);
    TrackSampleTable trackSampleTable = AtomParsers.parseStbl(track, stblAtom, gaplessInfoHolder);
    if (trackSampleTable.sampleCount == 0) {
      continue;
    }

    Mp4Track mp4Track = new Mp4Track(track, trackSampleTable,
        extractorOutput.track(i, track.type));
    // Each sample has up to three bytes of overhead for the start code that replaces its length.
    // Allow ten source samples per output sample, like the platform extractor.
    int maxInputSize = trackSampleTable.maximumSize + 3 * 10;
    Format format = track.format.copyWithMaxInputSize(maxInputSize);
    if (track.type == C.TRACK_TYPE_AUDIO) {
      if (gaplessInfoHolder.hasGaplessInfo()) {
        format = format.copyWithGaplessInfo(gaplessInfoHolder.encoderDelay,
            gaplessInfoHolder.encoderPadding);
      }
      if (metadata != null) {
        format = format.copyWithMetadata(metadata);
      }
    }
    mp4Track.trackOutput.format(format);

    durationUs = Math.max(durationUs, track.durationUs);
    tracks.add(mp4Track);

    long firstSampleOffset = trackSampleTable.offsets[0];
    if (firstSampleOffset < earliestSampleOffset) {
      earliestSampleOffset = firstSampleOffset;
    }
  }
  this.durationUs = durationUs;
  this.tracks = tracks.toArray(new Mp4Track[tracks.size()]);
  extractorOutput.endTracks();
  extractorOutput.seekMap(this);
}