com.google.android.exoplayer2.extractor.mp4.FragmentedMp4Extractor Java Examples

private static FragmentedMp4Extractor createFragmentedMp4Extractor(
    TimestampAdjuster timestampAdjuster,
    Format format,
    DrmInitData drmInitData,
    @Nullable List<Format> muxedCaptionFormats) {
  boolean isVariant = false;
  for (int i = 0; i < format.metadata.length(); i++) {
    Metadata.Entry entry = format.metadata.get(i);
    if (entry instanceof HlsTrackMetadataEntry) {
      isVariant = !((HlsTrackMetadataEntry) entry).variantInfos.isEmpty();
      break;
    }
  }
  // Only enable the EMSG TrackOutput if this is the 'variant' track (i.e. the main one) to avoid
  // creating a separate EMSG track for every audio track in a video stream.
  return new FragmentedMp4Extractor(
      /* flags= */ isVariant ? FragmentedMp4Extractor.FLAG_ENABLE_EMSG_TRACK : 0,
      timestampAdjuster,
      /* sideloadedTrack= */ null,
      drmInitData,
      muxedCaptionFormats != null ? muxedCaptionFormats : Collections.emptyList());
}
 

private static FragmentedMp4Extractor createFragmentedMp4Extractor(
    TimestampAdjuster timestampAdjuster,
    Format format,
    DrmInitData drmInitData,
    @Nullable List<Format> muxedCaptionFormats) {
  boolean isVariant = false;
  for (int i = 0; i < format.metadata.length(); i++) {
    Metadata.Entry entry = format.metadata.get(i);
    if (entry instanceof HlsTrackMetadataEntry) {
      isVariant = !((HlsTrackMetadataEntry) entry).variantInfos.isEmpty();
      break;
    }
  }
  // Only enable the EMSG TrackOutput if this is the 'variant' track (i.e. the main one) to avoid
  // creating a separate EMSG track for every audio track in a video stream.
  return new FragmentedMp4Extractor(
      /* flags= */ isVariant ? FragmentedMp4Extractor.FLAG_ENABLE_EMSG_TRACK : 0,
      timestampAdjuster,
      /* sideloadedTrack= */ null,
      drmInitData,
      muxedCaptionFormats != null ? muxedCaptionFormats : Collections.emptyList());
}
 

/**
 * @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 synchronized Extractor[] createExtractors() {
  Extractor[] extractors = new Extractor[FLAC_EXTRACTOR_CONSTRUCTOR == null ? 12 : 13];
  extractors[0] = new MatroskaExtractor(matroskaFlags);
  extractors[1] = new FragmentedMp4Extractor(fragmentedMp4Flags);
  extractors[2] = new Mp4Extractor(mp4Flags);
  extractors[3] = new Mp3Extractor(mp3Flags);
  extractors[4] = new AdtsExtractor();
  extractors[5] = new Ac3Extractor();
  extractors[6] = new TsExtractor(tsMode, tsFlags);
  extractors[7] = new FlvExtractor();
  extractors[8] = new OggExtractor();
  extractors[9] = new PsExtractor();
  extractors[10] = new WavExtractor();
  extractors[11] = new AmrExtractor();
  if (FLAC_EXTRACTOR_CONSTRUCTOR != null) {
    try {
      extractors[12] = FLAC_EXTRACTOR_CONSTRUCTOR.newInstance();
    } catch (Exception e) {
      // Should never happen.
      throw new IllegalStateException("Unexpected error creating FLAC extractor", e);
    }
  }
  return extractors;
}
 

@Override
public synchronized Extractor[] createExtractors() {
  Extractor[] extractors = new Extractor[FLAC_EXTRACTOR_CONSTRUCTOR == null ? 12 : 13];
  extractors[0] = new MatroskaExtractor(matroskaFlags);
  extractors[1] = new FragmentedMp4Extractor(fragmentedMp4Flags);
  extractors[2] = new Mp4Extractor(mp4Flags);
  extractors[3] = new Mp3Extractor(mp3Flags);
  extractors[4] = new AdtsExtractor();
  extractors[5] = new Ac3Extractor();
  extractors[6] = new TsExtractor(tsMode, tsFlags);
  extractors[7] = new FlvExtractor();
  extractors[8] = new OggExtractor();
  extractors[9] = new PsExtractor();
  extractors[10] = new WavExtractor();
  extractors[11] = new AmrExtractor();
  if (FLAC_EXTRACTOR_CONSTRUCTOR != null) {
    try {
      extractors[12] = FLAC_EXTRACTOR_CONSTRUCTOR.newInstance();
    } catch (Exception e) {
      // Should never happen.
      throw new IllegalStateException("Unexpected error creating FLAC extractor", e);
    }
  }
  return extractors;
}
 

private static ChunkExtractorWrapper newWrappedExtractor(Format format) {
  String mimeType = format.containerMimeType;
  boolean isWebm = mimeType.startsWith(MimeTypes.VIDEO_WEBM)
      || mimeType.startsWith(MimeTypes.AUDIO_WEBM);
  Extractor extractor = isWebm ? new MatroskaExtractor() : new FragmentedMp4Extractor();
  return new ChunkExtractorWrapper(extractor, format);
}
 

/**
 * @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);
  }
}
 

private static ChunkExtractorWrapper newWrappedExtractor(int trackType, Format format) {
  String mimeType = format.containerMimeType;
  boolean isWebm =
      mimeType != null
          && (mimeType.startsWith(MimeTypes.VIDEO_WEBM)
              || mimeType.startsWith(MimeTypes.AUDIO_WEBM));
  Extractor extractor = isWebm ? new MatroskaExtractor() : new FragmentedMp4Extractor();
  return new ChunkExtractorWrapper(extractor, trackType, format);
}
 

/**
 * @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);
  }
}
 

private static ChunkExtractorWrapper newWrappedExtractor(int trackType, Format format) {
  String mimeType = format.containerMimeType;
  boolean isWebm =
      mimeType != null
          && (mimeType.startsWith(MimeTypes.VIDEO_WEBM)
              || mimeType.startsWith(MimeTypes.AUDIO_WEBM));
  Extractor extractor = isWebm ? new MatroskaExtractor() : new FragmentedMp4Extractor();
  return new ChunkExtractorWrapper(extractor, trackType, format);
}
 

/**
 * @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.
 * @param trackEncryptionBoxes Track encryption boxes for the stream.
 */
public DefaultSsChunkSource(
    LoaderErrorThrower manifestLoaderErrorThrower,
    SsManifest manifest,
    int streamElementIndex,
    TrackSelection trackSelection,
    DataSource dataSource,
    TrackEncryptionBox[] trackEncryptionBoxes) {
  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];
    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);
  }
}
 

private static ChunkExtractorWrapper newWrappedExtractor(int trackType, Format format) {
  String mimeType = format.containerMimeType;
  boolean isWebm =
      mimeType != null
          && (mimeType.startsWith(MimeTypes.VIDEO_WEBM)
              || mimeType.startsWith(MimeTypes.AUDIO_WEBM));
  Extractor extractor = isWebm ? new MatroskaExtractor() : new FragmentedMp4Extractor();
  return new ChunkExtractorWrapper(extractor, trackType, format);
}
 

/**
 * @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.
 * @param trackEncryptionBoxes Track encryption boxes for the stream.
 */
public DefaultSsChunkSource(
    LoaderErrorThrower manifestLoaderErrorThrower,
    SsManifest manifest,
    int streamElementIndex,
    TrackSelection trackSelection,
    DataSource dataSource,
    TrackEncryptionBox[] trackEncryptionBoxes) {
  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];
    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);
  }
}
 

private static ChunkExtractorWrapper newWrappedExtractor(int trackType, Format format) {
  String mimeType = format.containerMimeType;
  boolean isWebm =
      mimeType != null
          && (mimeType.startsWith(MimeTypes.VIDEO_WEBM)
              || mimeType.startsWith(MimeTypes.AUDIO_WEBM));
  Extractor extractor = isWebm ? new MatroskaExtractor() : new FragmentedMp4Extractor();
  return new ChunkExtractorWrapper(extractor, trackType, format);
}
 

private static FragmentedMp4Extractor createFragmentedMp4Extractor(
    TimestampAdjuster timestampAdjuster,
    Format format,
    @Nullable DrmInitData drmInitData,
    @Nullable List<Format> muxedCaptionFormats) {
  // Only enable the EMSG TrackOutput if this is the 'variant' track (i.e. the main one) to avoid
  // creating a separate EMSG track for every audio track in a video stream.
  return new FragmentedMp4Extractor(
      /* flags= */ isFmp4Variant(format) ? FragmentedMp4Extractor.FLAG_ENABLE_EMSG_TRACK : 0,
      timestampAdjuster,
      /* sideloadedTrack= */ null,
      drmInitData,
      muxedCaptionFormats != null ? muxedCaptionFormats : Collections.emptyList());
}
 

/**
 * @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);
  }
}
 

private static ChunkExtractorWrapper newWrappedExtractor(int trackType, Format format) {
  String mimeType = format.containerMimeType;
  boolean isWebm =
      mimeType != null
          && (mimeType.startsWith(MimeTypes.VIDEO_WEBM)
              || mimeType.startsWith(MimeTypes.AUDIO_WEBM));
  Extractor extractor = isWebm ? new MatroskaExtractor() : new FragmentedMp4Extractor();
  return new ChunkExtractorWrapper(extractor, trackType, format);
}
 

@Override
public synchronized Extractor[] createExtractors() {
  Extractor[] extractors = new Extractor[FLAC_EXTRACTOR_CONSTRUCTOR == null ? 13 : 14];
  extractors[0] = new MatroskaExtractor(matroskaFlags);
  extractors[1] = new FragmentedMp4Extractor(fragmentedMp4Flags);
  extractors[2] = new Mp4Extractor(mp4Flags);
  extractors[3] =
      new Mp3Extractor(
          mp3Flags
              | (constantBitrateSeekingEnabled
                  ? Mp3Extractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[4] =
      new AdtsExtractor(
          adtsFlags
              | (constantBitrateSeekingEnabled
                  ? AdtsExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[5] = new Ac3Extractor();
  extractors[6] = new TsExtractor(tsMode, tsFlags);
  extractors[7] = new FlvExtractor();
  extractors[8] = new OggExtractor();
  extractors[9] = new PsExtractor();
  extractors[10] = new WavExtractor();
  extractors[11] =
      new AmrExtractor(
          amrFlags
              | (constantBitrateSeekingEnabled
                  ? AmrExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[12] = new Ac4Extractor();
  if (FLAC_EXTRACTOR_CONSTRUCTOR != null) {
    try {
      extractors[13] = FLAC_EXTRACTOR_CONSTRUCTOR.newInstance();
    } catch (Exception e) {
      // Should never happen.
      throw new IllegalStateException("Unexpected error creating FLAC extractor", e);
    }
  }
  return extractors;
}
 

@Override
public Result createExtractor(
    @Nullable Extractor previousExtractor,
    Uri uri,
    Format format,
    @Nullable List<Format> muxedCaptionFormats,
    @Nullable DrmInitData drmInitData,
    TimestampAdjuster timestampAdjuster,
    Map<String, List<String>> responseHeaders,
    ExtractorInput extractorInput)
    throws InterruptedException, IOException {

  if (previousExtractor != null) {
    // A extractor has already been successfully used. Return one of the same type.
    if (isReusable(previousExtractor)) {
      return buildResult(previousExtractor);
    } else {
      Result result =
          buildResultForSameExtractorType(previousExtractor, format, timestampAdjuster);
      if (result == null) {
        throw new IllegalArgumentException(
            "Unexpected previousExtractor type: " + previousExtractor.getClass().getSimpleName());
      }
    }
  }

  // Try selecting the extractor by the file extension.
  Extractor extractorByFileExtension =
      createExtractorByFileExtension(
          uri, format, muxedCaptionFormats, drmInitData, timestampAdjuster);
  extractorInput.resetPeekPosition();
  if (sniffQuietly(extractorByFileExtension, extractorInput)) {
    return buildResult(extractorByFileExtension);
  }

  // We need to manually sniff each known type, without retrying the one selected by file
  // extension.

  if (!(extractorByFileExtension instanceof WebvttExtractor)) {
    WebvttExtractor webvttExtractor = new WebvttExtractor(format.language, timestampAdjuster);
    if (sniffQuietly(webvttExtractor, extractorInput)) {
      return buildResult(webvttExtractor);
    }
  }

  if (!(extractorByFileExtension instanceof AdtsExtractor)) {
    AdtsExtractor adtsExtractor = new AdtsExtractor();
    if (sniffQuietly(adtsExtractor, extractorInput)) {
      return buildResult(adtsExtractor);
    }
  }

  if (!(extractorByFileExtension instanceof Ac3Extractor)) {
    Ac3Extractor ac3Extractor = new Ac3Extractor();
    if (sniffQuietly(ac3Extractor, extractorInput)) {
      return buildResult(ac3Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof Ac4Extractor)) {
    Ac4Extractor ac4Extractor = new Ac4Extractor();
    if (sniffQuietly(ac4Extractor, extractorInput)) {
      return buildResult(ac4Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof Mp3Extractor)) {
    Mp3Extractor mp3Extractor =
        new Mp3Extractor(/* flags= */ 0, /* forcedFirstSampleTimestampUs= */ 0);
    if (sniffQuietly(mp3Extractor, extractorInput)) {
      return buildResult(mp3Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof FragmentedMp4Extractor)) {
    FragmentedMp4Extractor fragmentedMp4Extractor =
        createFragmentedMp4Extractor(timestampAdjuster, format, drmInitData, muxedCaptionFormats);
    if (sniffQuietly(fragmentedMp4Extractor, extractorInput)) {
      return buildResult(fragmentedMp4Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof TsExtractor)) {
    TsExtractor tsExtractor =
        createTsExtractor(
            payloadReaderFactoryFlags,
            exposeCea608WhenMissingDeclarations,
            format,
            muxedCaptionFormats,
            timestampAdjuster);
    if (sniffQuietly(tsExtractor, extractorInput)) {
      return buildResult(tsExtractor);
    }
  }

  // Fall back on the extractor created by file extension.
  return buildResult(extractorByFileExtension);
}
 

private static boolean isReusable(Extractor previousExtractor) {
  return previousExtractor instanceof TsExtractor
      || previousExtractor instanceof FragmentedMp4Extractor;
}
 

@Override
public Result createExtractor(
    Extractor previousExtractor,
    Uri uri,
    Format format,
    List<Format> muxedCaptionFormats,
    DrmInitData drmInitData,
    TimestampAdjuster timestampAdjuster,
    Map<String, List<String>> responseHeaders,
    ExtractorInput extractorInput)
    throws InterruptedException, IOException {

  if (previousExtractor != null) {
    // A extractor has already been successfully used. Return one of the same type.
    if (isReusable(previousExtractor)) {
      return buildResult(previousExtractor);
    } else {
      Result result =
          buildResultForSameExtractorType(previousExtractor, format, timestampAdjuster);
      if (result == null) {
        throw new IllegalArgumentException(
            "Unexpected previousExtractor type: " + previousExtractor.getClass().getSimpleName());
      }
    }
  }

  // Try selecting the extractor by the file extension.
  Extractor extractorByFileExtension =
      createExtractorByFileExtension(
          uri, format, muxedCaptionFormats, drmInitData, timestampAdjuster);
  extractorInput.resetPeekPosition();
  if (sniffQuietly(extractorByFileExtension, extractorInput)) {
    return buildResult(extractorByFileExtension);
  }

  // We need to manually sniff each known type, without retrying the one selected by file
  // extension.

  if (!(extractorByFileExtension instanceof WebvttExtractor)) {
    WebvttExtractor webvttExtractor = new WebvttExtractor(format.language, timestampAdjuster);
    if (sniffQuietly(webvttExtractor, extractorInput)) {
      return buildResult(webvttExtractor);
    }
  }

  if (!(extractorByFileExtension instanceof AdtsExtractor)) {
    AdtsExtractor adtsExtractor = new AdtsExtractor();
    if (sniffQuietly(adtsExtractor, extractorInput)) {
      return buildResult(adtsExtractor);
    }
  }

  if (!(extractorByFileExtension instanceof Ac3Extractor)) {
    Ac3Extractor ac3Extractor = new Ac3Extractor();
    if (sniffQuietly(ac3Extractor, extractorInput)) {
      return buildResult(ac3Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof Ac4Extractor)) {
    Ac4Extractor ac4Extractor = new Ac4Extractor();
    if (sniffQuietly(ac4Extractor, extractorInput)) {
      return buildResult(ac4Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof Mp3Extractor)) {
    Mp3Extractor mp3Extractor =
        new Mp3Extractor(/* flags= */ 0, /* forcedFirstSampleTimestampUs= */ 0);
    if (sniffQuietly(mp3Extractor, extractorInput)) {
      return buildResult(mp3Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof FragmentedMp4Extractor)) {
    FragmentedMp4Extractor fragmentedMp4Extractor =
        createFragmentedMp4Extractor(timestampAdjuster, format, drmInitData, muxedCaptionFormats);
    if (sniffQuietly(fragmentedMp4Extractor, extractorInput)) {
      return buildResult(fragmentedMp4Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof TsExtractor)) {
    TsExtractor tsExtractor =
        createTsExtractor(
            payloadReaderFactoryFlags,
            exposeCea608WhenMissingDeclarations,
            format,
            muxedCaptionFormats,
            timestampAdjuster);
    if (sniffQuietly(tsExtractor, extractorInput)) {
      return buildResult(tsExtractor);
    }
  }

  // Fall back on the extractor created by file extension.
  return buildResult(extractorByFileExtension);
}
 

@Override
public synchronized Extractor[] createExtractors() {
  Extractor[] extractors = new Extractor[FLAC_EXTRACTOR_CONSTRUCTOR == null ? 13 : 14];
  extractors[0] = new MatroskaExtractor(matroskaFlags);
  extractors[1] = new FragmentedMp4Extractor(fragmentedMp4Flags);
  extractors[2] = new Mp4Extractor(mp4Flags);
  extractors[3] = new OggExtractor();
  extractors[4] =
      new Mp3Extractor(
          mp3Flags
              | (constantBitrateSeekingEnabled
                  ? Mp3Extractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[5] =
      new AdtsExtractor(
          /* firstStreamSampleTimestampUs= */ 0,
          adtsFlags
              | (constantBitrateSeekingEnabled
                  ? AdtsExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[6] = new Ac3Extractor();
  extractors[7] = new TsExtractor(tsMode, tsFlags);
  extractors[8] = new FlvExtractor();
  extractors[9] = new PsExtractor();
  extractors[10] = new WavExtractor();
  extractors[11] =
      new AmrExtractor(
          amrFlags
              | (constantBitrateSeekingEnabled
                  ? AmrExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[12] = new Ac4Extractor();
  if (FLAC_EXTRACTOR_CONSTRUCTOR != null) {
    try {
      extractors[13] = FLAC_EXTRACTOR_CONSTRUCTOR.newInstance();
    } catch (Exception e) {
      // Should never happen.
      throw new IllegalStateException("Unexpected error creating FLAC extractor", e);
    }
  }
  return extractors;
}
 

private static boolean isReusable(Extractor previousExtractor) {
  return previousExtractor instanceof TsExtractor
      || previousExtractor instanceof FragmentedMp4Extractor;
}
 

private static boolean isReusable(Extractor previousExtractor) {
  return previousExtractor instanceof TsExtractor
      || previousExtractor instanceof FragmentedMp4Extractor;
}
 

@Override
public Result createExtractor(
    Extractor previousExtractor,
    Uri uri,
    Format format,
    List<Format> muxedCaptionFormats,
    DrmInitData drmInitData,
    TimestampAdjuster timestampAdjuster,
    Map<String, List<String>> responseHeaders,
    ExtractorInput extractorInput)
    throws InterruptedException, IOException {

  if (previousExtractor != null) {
    // A extractor has already been successfully used. Return one of the same type.
    if (isReusable(previousExtractor)) {
      return buildResult(previousExtractor);
    } else {
      Result result =
          buildResultForSameExtractorType(previousExtractor, format, timestampAdjuster);
      if (result == null) {
        throw new IllegalArgumentException(
            "Unexpected previousExtractor type: " + previousExtractor.getClass().getSimpleName());
      }
    }
  }

  // Try selecting the extractor by the file extension.
  Extractor extractorByFileExtension =
      createExtractorByFileExtension(
          uri, format, muxedCaptionFormats, drmInitData, timestampAdjuster);
  extractorInput.resetPeekPosition();
  if (sniffQuietly(extractorByFileExtension, extractorInput)) {
    return buildResult(extractorByFileExtension);
  }

  // We need to manually sniff each known type, without retrying the one selected by file
  // extension.

  if (!(extractorByFileExtension instanceof WebvttExtractor)) {
    WebvttExtractor webvttExtractor = new WebvttExtractor(format.language, timestampAdjuster);
    if (sniffQuietly(webvttExtractor, extractorInput)) {
      return buildResult(webvttExtractor);
    }
  }

  if (!(extractorByFileExtension instanceof AdtsExtractor)) {
    AdtsExtractor adtsExtractor = new AdtsExtractor();
    if (sniffQuietly(adtsExtractor, extractorInput)) {
      return buildResult(adtsExtractor);
    }
  }

  if (!(extractorByFileExtension instanceof Ac3Extractor)) {
    Ac3Extractor ac3Extractor = new Ac3Extractor();
    if (sniffQuietly(ac3Extractor, extractorInput)) {
      return buildResult(ac3Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof Ac4Extractor)) {
    Ac4Extractor ac4Extractor = new Ac4Extractor();
    if (sniffQuietly(ac4Extractor, extractorInput)) {
      return buildResult(ac4Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof Mp3Extractor)) {
    Mp3Extractor mp3Extractor =
        new Mp3Extractor(/* flags= */ 0, /* forcedFirstSampleTimestampUs= */ 0);
    if (sniffQuietly(mp3Extractor, extractorInput)) {
      return buildResult(mp3Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof FragmentedMp4Extractor)) {
    FragmentedMp4Extractor fragmentedMp4Extractor =
        createFragmentedMp4Extractor(timestampAdjuster, format, drmInitData, muxedCaptionFormats);
    if (sniffQuietly(fragmentedMp4Extractor, extractorInput)) {
      return buildResult(fragmentedMp4Extractor);
    }
  }

  if (!(extractorByFileExtension instanceof TsExtractor)) {
    TsExtractor tsExtractor =
        createTsExtractor(
            payloadReaderFactoryFlags,
            exposeCea608WhenMissingDeclarations,
            format,
            muxedCaptionFormats,
            timestampAdjuster);
    if (sniffQuietly(tsExtractor, extractorInput)) {
      return buildResult(tsExtractor);
    }
  }

  // Fall back on the extractor created by file extension.
  return buildResult(extractorByFileExtension);
}
 

@Override
public synchronized Extractor[] createExtractors() {
  Extractor[] extractors = new Extractor[FLAC_EXTRACTOR_CONSTRUCTOR == null ? 13 : 14];
  extractors[0] = new MatroskaExtractor(matroskaFlags);
  extractors[1] = new FragmentedMp4Extractor(fragmentedMp4Flags);
  extractors[2] = new Mp4Extractor(mp4Flags);
  extractors[3] = new OggExtractor();
  extractors[4] =
      new Mp3Extractor(
          mp3Flags
              | (constantBitrateSeekingEnabled
                  ? Mp3Extractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[5] =
      new AdtsExtractor(
          /* firstStreamSampleTimestampUs= */ 0,
          adtsFlags
              | (constantBitrateSeekingEnabled
                  ? AdtsExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[6] = new Ac3Extractor();
  extractors[7] = new TsExtractor(tsMode, tsFlags);
  extractors[8] = new FlvExtractor();
  extractors[9] = new PsExtractor();
  extractors[10] = new WavExtractor();
  extractors[11] =
      new AmrExtractor(
          amrFlags
              | (constantBitrateSeekingEnabled
                  ? AmrExtractor.FLAG_ENABLE_CONSTANT_BITRATE_SEEKING
                  : 0));
  extractors[12] = new Ac4Extractor();
  if (FLAC_EXTRACTOR_CONSTRUCTOR != null) {
    try {
      extractors[13] = FLAC_EXTRACTOR_CONSTRUCTOR.newInstance();
    } catch (Exception e) {
      // Should never happen.
      throw new IllegalStateException("Unexpected error creating FLAC extractor", e);
    }
  }
  return extractors;
}
 

/**
 * Sets flags for {@link FragmentedMp4Extractor} instances created by the factory.
 *
 * @see FragmentedMp4Extractor#FragmentedMp4Extractor(int)
 * @param flags The flags to use.
 * @return The factory, for convenience.
 */
public synchronized DefaultExtractorsFactory setFragmentedMp4ExtractorFlags(
    @FragmentedMp4Extractor.Flags int flags) {
  this.fragmentedMp4Flags = flags;
  return this;
}
 

/**
 * Sets flags for {@link FragmentedMp4Extractor} instances created by the factory.
 *
 * @see FragmentedMp4Extractor#FragmentedMp4Extractor(int)
 * @param flags The flags to use.
 * @return The factory, for convenience.
 */
public synchronized DefaultExtractorsFactory setFragmentedMp4ExtractorFlags(
    @FragmentedMp4Extractor.Flags int flags) {
  this.fragmentedMp4Flags = flags;
  return this;
}
 

/**
 * Sets flags for {@link FragmentedMp4Extractor} instances created by the factory.
 *
 * @see FragmentedMp4Extractor#FragmentedMp4Extractor(int)
 * @param flags The flags to use.
 * @return The factory, for convenience.
 */
public synchronized DefaultExtractorsFactory setFragmentedMp4ExtractorFlags(
    @FragmentedMp4Extractor.Flags int flags) {
  this.fragmentedMp4Flags = flags;
  return this;
}
 

/**
 * Sets flags for {@link FragmentedMp4Extractor} instances created by the factory.
 *
 * @see FragmentedMp4Extractor#FragmentedMp4Extractor(int)
 * @param flags The flags to use.
 * @return The factory, for convenience.
 */
public synchronized DefaultExtractorsFactory setFragmentedMp4ExtractorFlags(
    @FragmentedMp4Extractor.Flags int flags) {
  this.fragmentedMp4Flags = flags;
  return this;
}