com.google.android.exoplayer2.source.smoothstreaming.manifest.SsManifest.StreamElement Java Examples

@Override
protected List<Segment> getSegments(
    DataSource dataSource, SsManifest manifest, boolean allowIncompleteList) {
  ArrayList<Segment> segments = new ArrayList<>();
  for (StreamElement streamElement : manifest.streamElements) {
    for (int i = 0; i < streamElement.formats.length; i++) {
      for (int j = 0; j < streamElement.chunkCount; j++) {
        segments.add(
            new Segment(
                streamElement.getStartTimeUs(j),
                new DataSpec(streamElement.buildRequestUri(i, j))));
      }
    }
  }
  return segments;
}
 

@Override
protected List<Segment> getSegments(
    DataSource dataSource, SsManifest manifest, boolean allowIncompleteList) {
  ArrayList<Segment> segments = new ArrayList<>();
  for (StreamElement streamElement : manifest.streamElements) {
    for (int i = 0; i < streamElement.formats.length; i++) {
      for (int j = 0; j < streamElement.chunkCount; j++) {
        segments.add(
            new Segment(
                streamElement.getStartTimeUs(j),
                new DataSpec(streamElement.buildRequestUri(i, j))));
      }
    }
  }
  return segments;
}
 

@Override
public void updateManifest(SsManifest newManifest) {
  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int currentElementChunkCount = currentElement.chunkCount;
  StreamElement newElement = newManifest.streamElements[streamElementIndex];
  if (currentElementChunkCount == 0 || newElement.chunkCount == 0) {
    // There's no overlap between the old and new elements because at least one is empty.
    currentManifestChunkOffset += currentElementChunkCount;
  } else {
    long currentElementEndTimeUs = currentElement.getStartTimeUs(currentElementChunkCount - 1)
        + currentElement.getChunkDurationUs(currentElementChunkCount - 1);
    long newElementStartTimeUs = newElement.getStartTimeUs(0);
    if (currentElementEndTimeUs <= newElementStartTimeUs) {
      // There's no overlap between the old and new elements.
      currentManifestChunkOffset += currentElementChunkCount;
    } else {
      // The new element overlaps with the old one.
      currentManifestChunkOffset += currentElement.getChunkIndex(newElementStartTimeUs);
    }
  }
  manifest = newManifest;
}
 

@Override
public Object build() {
  StreamElement[] streamElementArray = new StreamElement[streamElements.size()];
  streamElements.toArray(streamElementArray);
  if (protectionElement != null) {
    DrmInitData drmInitData = new DrmInitData(new SchemeData(protectionElement.uuid,
        MimeTypes.VIDEO_MP4, protectionElement.data));
    for (StreamElement streamElement : streamElementArray) {
      int type = streamElement.type;
      if (type == C.TRACK_TYPE_VIDEO || type == C.TRACK_TYPE_AUDIO) {
        Format[] formats = streamElement.formats;
        for (int i = 0; i < formats.length; i++) {
          formats[i] = formats[i].copyWithDrmInitData(drmInitData);
        }
      }
    }
  }
  return new SsManifest(majorVersion, minorVersion, timescale, duration, dvrWindowLength,
      lookAheadCount, isLive, protectionElement, streamElementArray);
}
 

@Override
protected List<Segment> getSegments(
    DataSource dataSource, SsManifest manifest, boolean allowIncompleteList) {
  ArrayList<Segment> segments = new ArrayList<>();
  for (StreamElement streamElement : manifest.streamElements) {
    for (int i = 0; i < streamElement.formats.length; i++) {
      for (int j = 0; j < streamElement.chunkCount; j++) {
        segments.add(
            new Segment(
                streamElement.getStartTimeUs(j),
                new DataSpec(streamElement.buildRequestUri(i, j))));
      }
    }
  }
  return segments;
}
 

@Override
public void updateManifest(SsManifest newManifest) {
  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int currentElementChunkCount = currentElement.chunkCount;
  StreamElement newElement = newManifest.streamElements[streamElementIndex];
  if (currentElementChunkCount == 0 || newElement.chunkCount == 0) {
    // There's no overlap between the old and new elements because at least one is empty.
    currentManifestChunkOffset += currentElementChunkCount;
  } else {
    long currentElementEndTimeUs = currentElement.getStartTimeUs(currentElementChunkCount - 1)
        + currentElement.getChunkDurationUs(currentElementChunkCount - 1);
    long newElementStartTimeUs = newElement.getStartTimeUs(0);
    if (currentElementEndTimeUs <= newElementStartTimeUs) {
      // There's no overlap between the old and new elements.
      currentManifestChunkOffset += currentElementChunkCount;
    } else {
      // The new element overlaps with the old one.
      currentManifestChunkOffset += currentElement.getChunkIndex(newElementStartTimeUs);
    }
  }
  manifest = newManifest;
}
 

@Override
public Object build() {
  StreamElement[] streamElementArray = new StreamElement[streamElements.size()];
  streamElements.toArray(streamElementArray);
  if (protectionElement != null) {
    DrmInitData drmInitData = new DrmInitData(new SchemeData(protectionElement.uuid,
        MimeTypes.VIDEO_MP4, protectionElement.data));
    for (StreamElement streamElement : streamElementArray) {
      int type = streamElement.type;
      if (type == C.TRACK_TYPE_VIDEO || type == C.TRACK_TYPE_AUDIO) {
        Format[] formats = streamElement.formats;
        for (int i = 0; i < formats.length; i++) {
          formats[i] = formats[i].copyWithDrmInitData(drmInitData);
        }
      }
    }
  }
  return new SsManifest(majorVersion, minorVersion, timescale, duration, dvrWindowLength,
      lookAheadCount, isLive, protectionElement, streamElementArray);
}
 

@Override
public void updateManifest(SsManifest newManifest) {
  StreamElement currentElement = manifest.streamElements[elementIndex];
  int currentElementChunkCount = currentElement.chunkCount;
  StreamElement newElement = newManifest.streamElements[elementIndex];
  if (currentElementChunkCount == 0 || newElement.chunkCount == 0) {
    // There's no overlap between the old and new elements because at least one is empty.
    currentManifestChunkOffset += currentElementChunkCount;
  } else {
    long currentElementEndTimeUs = currentElement.getStartTimeUs(currentElementChunkCount - 1)
        + currentElement.getChunkDurationUs(currentElementChunkCount - 1);
    long newElementStartTimeUs = newElement.getStartTimeUs(0);
    if (currentElementEndTimeUs <= newElementStartTimeUs) {
      // There's no overlap between the old and new elements.
      currentManifestChunkOffset += currentElementChunkCount;
    } else {
      // The new element overlaps with the old one.
      currentManifestChunkOffset += currentElement.getChunkIndex(newElementStartTimeUs);
    }
  }
  manifest = newManifest;
}
 

/**
 * @param manifestLoaderErrorThrower Throws errors affecting loading of manifests.
 * @param manifest The initial manifest.
 * @param elementIndex The index of the stream element in the manifest.
 * @param trackSelection The track selection.
 * @param dataSource A {@link DataSource} suitable for loading the media data.
 * @param trackEncryptionBoxes Track encryption boxes for the stream.
 */
public DefaultSsChunkSource(LoaderErrorThrower manifestLoaderErrorThrower, SsManifest manifest,
    int elementIndex, TrackSelection trackSelection, DataSource dataSource,
    TrackEncryptionBox[] trackEncryptionBoxes) {
  this.manifestLoaderErrorThrower = manifestLoaderErrorThrower;
  this.manifest = manifest;
  this.elementIndex = elementIndex;
  this.trackSelection = trackSelection;
  this.dataSource = dataSource;

  StreamElement streamElement = manifest.streamElements[elementIndex];

  extractorWrappers = new ChunkExtractorWrapper[trackSelection.length()];
  for (int i = 0; i < extractorWrappers.length; i++) {
    int manifestTrackIndex = trackSelection.getIndexInTrackGroup(i);
    Format format = streamElement.formats[manifestTrackIndex];
    int nalUnitLengthFieldLength = streamElement.type == C.TRACK_TYPE_VIDEO ? 4 : 0;
    Track track = new Track(manifestTrackIndex, streamElement.type, streamElement.timescale,
        C.TIME_UNSET, manifest.durationUs, format, Track.TRANSFORMATION_NONE,
        trackEncryptionBoxes, nalUnitLengthFieldLength, null, null);
    FragmentedMp4Extractor extractor = new FragmentedMp4Extractor(
        FragmentedMp4Extractor.FLAG_WORKAROUND_EVERY_VIDEO_FRAME_IS_SYNC_FRAME
        | FragmentedMp4Extractor.FLAG_WORKAROUND_IGNORE_TFDT_BOX, null, track);
    extractorWrappers[i] = new ChunkExtractorWrapper(extractor, format);
  }
}
 

@Override
public Object build() {
  StreamElement[] streamElementArray = new StreamElement[streamElements.size()];
  streamElements.toArray(streamElementArray);
  if (protectionElement != null) {
    DrmInitData drmInitData = new DrmInitData(new SchemeData(protectionElement.uuid,
        MimeTypes.VIDEO_MP4, protectionElement.data));
    for (StreamElement streamElement : streamElementArray) {
      for (int i = 0; i < streamElement.formats.length; i++) {
        streamElement.formats[i] = streamElement.formats[i].copyWithDrmInitData(drmInitData);
      }
    }
  }
  return new SsManifest(majorVersion, minorVersion, timescale, duration, dvrWindowLength,
      lookAheadCount, isLive, protectionElement, streamElementArray);
}
 

@Override
public Object build() {
  StreamElement[] streamElementArray = new StreamElement[streamElements.size()];
  streamElements.toArray(streamElementArray);
  if (protectionElement != null) {
    DrmInitData drmInitData = new DrmInitData(new SchemeData(protectionElement.uuid,
        MimeTypes.VIDEO_MP4, protectionElement.data));
    for (StreamElement streamElement : streamElementArray) {
      int type = streamElement.type;
      if (type == C.TRACK_TYPE_VIDEO || type == C.TRACK_TYPE_AUDIO) {
        Format[] formats = streamElement.formats;
        for (int i = 0; i < formats.length; i++) {
          formats[i] = formats[i].copyWithDrmInitData(drmInitData);
        }
      }
    }
  }
  return new SsManifest(majorVersion, minorVersion, timescale, duration, dvrWindowLength,
      lookAheadCount, isLive, protectionElement, streamElementArray);
}
 

@Override
public void updateManifest(SsManifest newManifest) {
  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int currentElementChunkCount = currentElement.chunkCount;
  StreamElement newElement = newManifest.streamElements[streamElementIndex];
  if (currentElementChunkCount == 0 || newElement.chunkCount == 0) {
    // There's no overlap between the old and new elements because at least one is empty.
    currentManifestChunkOffset += currentElementChunkCount;
  } else {
    long currentElementEndTimeUs = currentElement.getStartTimeUs(currentElementChunkCount - 1)
        + currentElement.getChunkDurationUs(currentElementChunkCount - 1);
    long newElementStartTimeUs = newElement.getStartTimeUs(0);
    if (currentElementEndTimeUs <= newElementStartTimeUs) {
      // There's no overlap between the old and new elements.
      currentManifestChunkOffset += currentElementChunkCount;
    } else {
      // The new element overlaps with the old one.
      currentManifestChunkOffset += currentElement.getChunkIndex(newElementStartTimeUs);
    }
  }
  manifest = newManifest;
}
 

@Override
public Object build() {
  StreamElement[] streamElementArray = new StreamElement[streamElements.size()];
  streamElements.toArray(streamElementArray);
  if (protectionElement != null) {
    DrmInitData drmInitData = new DrmInitData(new SchemeData(protectionElement.uuid,
        MimeTypes.VIDEO_MP4, protectionElement.data));
    for (StreamElement streamElement : streamElementArray) {
      for (int i = 0; i < streamElement.formats.length; i++) {
        streamElement.formats[i] = streamElement.formats[i].copyWithDrmInitData(drmInitData);
      }
    }
  }
  return new SsManifest(majorVersion, minorVersion, timescale, duration, dvrWindowLength,
      lookAheadCount, isLive, protectionElement, streamElementArray);
}
 

@Override
protected List<Segment> getSegments(
    DataSource dataSource, SsManifest manifest, boolean allowIncompleteList) {
  ArrayList<Segment> segments = new ArrayList<>();
  for (StreamElement streamElement : manifest.streamElements) {
    for (int i = 0; i < streamElement.formats.length; i++) {
      for (int j = 0; j < streamElement.chunkCount; j++) {
        segments.add(
            new Segment(
                streamElement.getStartTimeUs(j),
                new DataSpec(streamElement.buildRequestUri(i, j))));
      }
    }
  }
  return segments;
}
 

@Override
public void updateManifest(SsManifest newManifest) {
  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int currentElementChunkCount = currentElement.chunkCount;
  StreamElement newElement = newManifest.streamElements[streamElementIndex];
  if (currentElementChunkCount == 0 || newElement.chunkCount == 0) {
    // There's no overlap between the old and new elements because at least one is empty.
    currentManifestChunkOffset += currentElementChunkCount;
  } else {
    long currentElementEndTimeUs = currentElement.getStartTimeUs(currentElementChunkCount - 1)
        + currentElement.getChunkDurationUs(currentElementChunkCount - 1);
    long newElementStartTimeUs = newElement.getStartTimeUs(0);
    if (currentElementEndTimeUs <= newElementStartTimeUs) {
      // There's no overlap between the old and new elements.
      currentManifestChunkOffset += currentElementChunkCount;
    } else {
      // The new element overlaps with the old one.
      currentManifestChunkOffset += currentElement.getChunkIndex(newElementStartTimeUs);
    }
  }
  manifest = newManifest;
}
 

@Override
public void updateManifest(SsManifest newManifest) {
  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int currentElementChunkCount = currentElement.chunkCount;
  StreamElement newElement = newManifest.streamElements[streamElementIndex];
  if (currentElementChunkCount == 0 || newElement.chunkCount == 0) {
    // There's no overlap between the old and new elements because at least one is empty.
    currentManifestChunkOffset += currentElementChunkCount;
  } else {
    long currentElementEndTimeUs = currentElement.getStartTimeUs(currentElementChunkCount - 1)
        + currentElement.getChunkDurationUs(currentElementChunkCount - 1);
    long newElementStartTimeUs = newElement.getStartTimeUs(0);
    if (currentElementEndTimeUs <= newElementStartTimeUs) {
      // There's no overlap between the old and new elements.
      currentManifestChunkOffset += currentElementChunkCount;
    } else {
      // The new element overlaps with the old one.
      currentManifestChunkOffset += currentElement.getChunkIndex(newElementStartTimeUs);
    }
  }
  manifest = newManifest;
}
 

@Override
public Object build() {
  StreamElement[] streamElementArray = new StreamElement[streamElements.size()];
  streamElements.toArray(streamElementArray);
  if (protectionElement != null) {
    DrmInitData drmInitData = new DrmInitData(new SchemeData(protectionElement.uuid,
        MimeTypes.VIDEO_MP4, protectionElement.data));
    for (StreamElement streamElement : streamElementArray) {
      for (int i = 0; i < streamElement.formats.length; i++) {
        streamElement.formats[i] = streamElement.formats[i].copyWithDrmInitData(drmInitData);
      }
    }
  }
  return new SsManifest(majorVersion, minorVersion, timescale, duration, dvrWindowLength,
      lookAheadCount, isLive, protectionElement, streamElementArray);
}
 

@Override
protected List<Segment> getSegments(
    DataSource dataSource, SsManifest manifest, boolean allowIncompleteList) {
  ArrayList<Segment> segments = new ArrayList<>();
  for (StreamElement streamElement : manifest.streamElements) {
    for (int i = 0; i < streamElement.formats.length; i++) {
      for (int j = 0; j < streamElement.chunkCount; j++) {
        segments.add(
            new Segment(
                streamElement.getStartTimeUs(j),
                new DataSpec(streamElement.buildRequestUri(i, j))));
      }
    }
  }
  return segments;
}
 

@Override
public Object build() {
  Format[] formatArray = new Format[formats.size()];
  formats.toArray(formatArray);
  return new StreamElement(baseUri, url, type, subType, timescale, name, maxWidth, maxHeight,
      displayWidth, displayHeight, language, formatArray, startTimes, lastChunkDuration);
}
 

private long resolveTimeToLiveEdgeUs(long playbackPositionUs) {
  if (!manifest.isLive) {
    return C.TIME_UNSET;
  }

  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int lastChunkIndex = currentElement.chunkCount - 1;
  long lastChunkEndTimeUs = currentElement.getStartTimeUs(lastChunkIndex)
      + currentElement.getChunkDurationUs(lastChunkIndex);
  return lastChunkEndTimeUs - playbackPositionUs;
}
 

private long resolveTimeToLiveEdgeUs(long playbackPositionUs) {
  if (!manifest.isLive) {
    return C.TIME_UNSET;
  }

  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int lastChunkIndex = currentElement.chunkCount - 1;
  long lastChunkEndTimeUs = currentElement.getStartTimeUs(lastChunkIndex)
      + currentElement.getChunkDurationUs(lastChunkIndex);
  return lastChunkEndTimeUs - playbackPositionUs;
}
 

/**
 * @param manifestLoaderErrorThrower Throws errors affecting loading of manifests.
 * @param manifest The initial manifest.
 * @param streamElementIndex The index of the stream element in the manifest.
 * @param trackSelection The track selection.
 * @param dataSource A {@link DataSource} suitable for loading the media data.
 */
public DefaultSsChunkSource(
    LoaderErrorThrower manifestLoaderErrorThrower,
    SsManifest manifest,
    int streamElementIndex,
    TrackSelection trackSelection,
    DataSource dataSource) {
  this.manifestLoaderErrorThrower = manifestLoaderErrorThrower;
  this.manifest = manifest;
  this.streamElementIndex = streamElementIndex;
  this.trackSelection = trackSelection;
  this.dataSource = dataSource;

  StreamElement streamElement = manifest.streamElements[streamElementIndex];
  extractorWrappers = new ChunkExtractorWrapper[trackSelection.length()];
  for (int i = 0; i < extractorWrappers.length; i++) {
    int manifestTrackIndex = trackSelection.getIndexInTrackGroup(i);
    Format format = streamElement.formats[manifestTrackIndex];
    TrackEncryptionBox[] trackEncryptionBoxes =
        format.drmInitData != null ? manifest.protectionElement.trackEncryptionBoxes : null;
    int nalUnitLengthFieldLength = streamElement.type == C.TRACK_TYPE_VIDEO ? 4 : 0;
    Track track = new Track(manifestTrackIndex, streamElement.type, streamElement.timescale,
        C.TIME_UNSET, manifest.durationUs, format, Track.TRANSFORMATION_NONE,
        trackEncryptionBoxes, nalUnitLengthFieldLength, null, null);
    FragmentedMp4Extractor extractor = new FragmentedMp4Extractor(
        FragmentedMp4Extractor.FLAG_WORKAROUND_EVERY_VIDEO_FRAME_IS_SYNC_FRAME
        | FragmentedMp4Extractor.FLAG_WORKAROUND_IGNORE_TFDT_BOX, null, track, null);
    extractorWrappers[i] = new ChunkExtractorWrapper(extractor, streamElement.type, format);
  }
}
 

@Override
public long getAdjustedSeekPositionUs(long positionUs, SeekParameters seekParameters) {
  StreamElement streamElement = manifest.streamElements[streamElementIndex];
  int chunkIndex = streamElement.getChunkIndex(positionUs);
  long firstSyncUs = streamElement.getStartTimeUs(chunkIndex);
  long secondSyncUs =
      firstSyncUs < positionUs && chunkIndex < streamElement.chunkCount - 1
          ? streamElement.getStartTimeUs(chunkIndex + 1)
          : firstSyncUs;
  return Util.resolveSeekPositionUs(positionUs, seekParameters, firstSyncUs, secondSyncUs);
}
 

/**
 * @param manifestLoaderErrorThrower Throws errors affecting loading of manifests.
 * @param manifest The initial manifest.
 * @param streamElementIndex The index of the stream element in the manifest.
 * @param trackSelection The track selection.
 * @param dataSource A {@link DataSource} suitable for loading the media data.
 */
public DefaultSsChunkSource(
    LoaderErrorThrower manifestLoaderErrorThrower,
    SsManifest manifest,
    int streamElementIndex,
    TrackSelection trackSelection,
    DataSource dataSource) {
  this.manifestLoaderErrorThrower = manifestLoaderErrorThrower;
  this.manifest = manifest;
  this.streamElementIndex = streamElementIndex;
  this.trackSelection = trackSelection;
  this.dataSource = dataSource;

  StreamElement streamElement = manifest.streamElements[streamElementIndex];
  extractorWrappers = new ChunkExtractorWrapper[trackSelection.length()];
  for (int i = 0; i < extractorWrappers.length; i++) {
    int manifestTrackIndex = trackSelection.getIndexInTrackGroup(i);
    Format format = streamElement.formats[manifestTrackIndex];
    TrackEncryptionBox[] trackEncryptionBoxes =
        format.drmInitData != null ? manifest.protectionElement.trackEncryptionBoxes : null;
    int nalUnitLengthFieldLength = streamElement.type == C.TRACK_TYPE_VIDEO ? 4 : 0;
    Track track = new Track(manifestTrackIndex, streamElement.type, streamElement.timescale,
        C.TIME_UNSET, manifest.durationUs, format, Track.TRANSFORMATION_NONE,
        trackEncryptionBoxes, nalUnitLengthFieldLength, null, null);
    FragmentedMp4Extractor extractor = new FragmentedMp4Extractor(
        FragmentedMp4Extractor.FLAG_WORKAROUND_EVERY_VIDEO_FRAME_IS_SYNC_FRAME
        | FragmentedMp4Extractor.FLAG_WORKAROUND_IGNORE_TFDT_BOX, null, track, null);
    extractorWrappers[i] = new ChunkExtractorWrapper(extractor, streamElement.type, format);
  }
}
 

@Override
public Object build() {
  Format[] formatArray = new Format[formats.size()];
  formats.toArray(formatArray);
  return new StreamElement(baseUri, url, type, subType, timescale, name, maxWidth, maxHeight,
      displayWidth, displayHeight, language, formatArray, startTimes, lastChunkDuration);
}
 

@Override
public long getAdjustedSeekPositionUs(long positionUs, SeekParameters seekParameters) {
  StreamElement streamElement = manifest.streamElements[streamElementIndex];
  int chunkIndex = streamElement.getChunkIndex(positionUs);
  long firstSyncUs = streamElement.getStartTimeUs(chunkIndex);
  long secondSyncUs =
      firstSyncUs < positionUs && chunkIndex < streamElement.chunkCount - 1
          ? streamElement.getStartTimeUs(chunkIndex + 1)
          : firstSyncUs;
  return Util.resolveSeekPositionUs(positionUs, seekParameters, firstSyncUs, secondSyncUs);
}
 

private long resolveTimeToLiveEdgeUs(long playbackPositionUs) {
  if (!manifest.isLive) {
    return C.TIME_UNSET;
  }

  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int lastChunkIndex = currentElement.chunkCount - 1;
  long lastChunkEndTimeUs = currentElement.getStartTimeUs(lastChunkIndex)
      + currentElement.getChunkDurationUs(lastChunkIndex);
  return lastChunkEndTimeUs - playbackPositionUs;
}
 

private long resolveTimeToLiveEdgeUs(long playbackPositionUs) {
  if (!manifest.isLive) {
    return C.TIME_UNSET;
  }

  StreamElement currentElement = manifest.streamElements[streamElementIndex];
  int lastChunkIndex = currentElement.chunkCount - 1;
  long lastChunkEndTimeUs = currentElement.getStartTimeUs(lastChunkIndex)
      + currentElement.getChunkDurationUs(lastChunkIndex);
  return lastChunkEndTimeUs - playbackPositionUs;
}
 

@Override
public long getAdjustedSeekPositionUs(long positionUs, SeekParameters seekParameters) {
  StreamElement streamElement = manifest.streamElements[streamElementIndex];
  int chunkIndex = streamElement.getChunkIndex(positionUs);
  long firstSyncUs = streamElement.getStartTimeUs(chunkIndex);
  long secondSyncUs =
      firstSyncUs < positionUs && chunkIndex < streamElement.chunkCount - 1
          ? streamElement.getStartTimeUs(chunkIndex + 1)
          : firstSyncUs;
  return Util.resolveSeekPositionUs(positionUs, seekParameters, firstSyncUs, secondSyncUs);
}
 

/**
 * @param manifestLoaderErrorThrower Throws errors affecting loading of manifests.
 * @param manifest The initial manifest.
 * @param streamElementIndex The index of the stream element in the manifest.
 * @param trackSelection The track selection.
 * @param dataSource A {@link DataSource} suitable for loading the media data.
 */
public DefaultSsChunkSource(
    LoaderErrorThrower manifestLoaderErrorThrower,
    SsManifest manifest,
    int streamElementIndex,
    TrackSelection trackSelection,
    DataSource dataSource) {
  this.manifestLoaderErrorThrower = manifestLoaderErrorThrower;
  this.manifest = manifest;
  this.streamElementIndex = streamElementIndex;
  this.trackSelection = trackSelection;
  this.dataSource = dataSource;

  StreamElement streamElement = manifest.streamElements[streamElementIndex];
  extractorWrappers = new ChunkExtractorWrapper[trackSelection.length()];
  for (int i = 0; i < extractorWrappers.length; i++) {
    int manifestTrackIndex = trackSelection.getIndexInTrackGroup(i);
    Format format = streamElement.formats[manifestTrackIndex];
    TrackEncryptionBox[] trackEncryptionBoxes =
        format.drmInitData != null ? manifest.protectionElement.trackEncryptionBoxes : null;
    int nalUnitLengthFieldLength = streamElement.type == C.TRACK_TYPE_VIDEO ? 4 : 0;
    Track track = new Track(manifestTrackIndex, streamElement.type, streamElement.timescale,
        C.TIME_UNSET, manifest.durationUs, format, Track.TRANSFORMATION_NONE,
        trackEncryptionBoxes, nalUnitLengthFieldLength, null, null);
    FragmentedMp4Extractor extractor = new FragmentedMp4Extractor(
        FragmentedMp4Extractor.FLAG_WORKAROUND_EVERY_VIDEO_FRAME_IS_SYNC_FRAME
        | FragmentedMp4Extractor.FLAG_WORKAROUND_IGNORE_TFDT_BOX, null, track, null);
    extractorWrappers[i] = new ChunkExtractorWrapper(extractor, streamElement.type, format);
  }
}