com.google.android.exoplayer2.source.dash.manifest.Representation Java Examples

RepresentationHolder(
    long periodDurationUs,
    int trackType,
    Representation representation,
    boolean enableEventMessageTrack,
    List<Format> closedCaptionFormats,
    TrackOutput playerEmsgTrackOutput) {
  this(
      periodDurationUs,
      representation,
      createExtractorWrapper(
          trackType,
          representation,
          enableEventMessageTrack,
          closedCaptionFormats,
          playerEmsgTrackOutput),
      /* segmentNumShift= */ 0,
      representation.getIndex());
}
 

/**
 * Loads {@link DrmInitData} for a given period in a DASH manifest.
 *
 * @param dataSource The {@link HttpDataSource} from which data should be loaded.
 * @param period The {@link Period}.
 * @return The loaded {@link DrmInitData}, or null if none is defined.
 * @throws IOException Thrown when there is an error while loading.
 * @throws InterruptedException Thrown if the thread was interrupted.
 */
@Nullable
public static DrmInitData loadDrmInitData(DataSource dataSource, Period period)
    throws IOException, InterruptedException {
  int primaryTrackType = C.TRACK_TYPE_VIDEO;
  Representation representation = getFirstRepresentation(period, primaryTrackType);
  if (representation == null) {
    primaryTrackType = C.TRACK_TYPE_AUDIO;
    representation = getFirstRepresentation(period, primaryTrackType);
    if (representation == null) {
      return null;
    }
  }
  Format manifestFormat = representation.format;
  Format sampleFormat = DashUtil.loadSampleFormat(dataSource, primaryTrackType, representation);
  return sampleFormat == null
      ? manifestFormat.drmInitData
      : sampleFormat.copyWithManifestFormatInfo(manifestFormat).drmInitData;
}
 

RepresentationHolder(
    long periodDurationUs,
    int trackType,
    Representation representation,
    boolean enableEventMessageTrack,
    List<Format> closedCaptionFormats,
    @Nullable TrackOutput playerEmsgTrackOutput) {
  this(
      periodDurationUs,
      representation,
      createExtractorWrapper(
          trackType,
          representation,
          enableEventMessageTrack,
          closedCaptionFormats,
          playerEmsgTrackOutput),
      /* segmentNumShift= */ 0,
      representation.getIndex());
}
 

@Override
public void updateManifest(DashManifest newManifest, int newPeriodIndex) {
  try {
    manifest = newManifest;
    periodIndex = newPeriodIndex;
    long periodDurationUs = manifest.getPeriodDurationUs(periodIndex);
    List<Representation> representations = getRepresentations();
    for (int i = 0; i < representationHolders.length; i++) {
      Representation representation = representations.get(trackSelection.getIndexInTrackGroup(i));
      representationHolders[i] =
          representationHolders[i].copyWithNewRepresentation(periodDurationUs, representation);
    }
  } catch (BehindLiveWindowException e) {
    fatalError = e;
  }
}
 

/**
 * Loads {@link DrmInitData} for a given period in a DASH manifest.
 *
 * @param dataSource The {@link HttpDataSource} from which data should be loaded.
 * @param period The {@link Period}.
 * @return The loaded {@link DrmInitData}, or null if none is defined.
 * @throws IOException Thrown when there is an error while loading.
 * @throws InterruptedException Thrown if the thread was interrupted.
 */
public static @Nullable DrmInitData loadDrmInitData(DataSource dataSource, Period period)
    throws IOException, InterruptedException {
  int primaryTrackType = C.TRACK_TYPE_VIDEO;
  Representation representation = getFirstRepresentation(period, primaryTrackType);
  if (representation == null) {
    primaryTrackType = C.TRACK_TYPE_AUDIO;
    representation = getFirstRepresentation(period, primaryTrackType);
    if (representation == null) {
      return null;
    }
  }
  Format manifestFormat = representation.format;
  Format sampleFormat = DashUtil.loadSampleFormat(dataSource, primaryTrackType, representation);
  return sampleFormat == null
      ? manifestFormat.drmInitData
      : sampleFormat.copyWithManifestFormatInfo(manifestFormat).drmInitData;
}
 

@Override
public void updateManifest(DashManifest newManifest, int newPeriodIndex) {
  try {
    manifest = newManifest;
    periodIndex = newPeriodIndex;
    long periodDurationUs = manifest.getPeriodDurationUs(periodIndex);
    List<Representation> representations = getRepresentations();
    for (int i = 0; i < representationHolders.length; i++) {
      Representation representation = representations.get(trackSelection.getIndexInTrackGroup(i));
      representationHolders[i] =
          representationHolders[i].copyWithNewRepresentation(periodDurationUs, representation);
    }
  } catch (BehindLiveWindowException e) {
    fatalError = e;
  }
}
 

RepresentationHolder(
    long periodDurationUs,
    int trackType,
    Representation representation,
    boolean enableEventMessageTrack,
    boolean enableCea608Track,
    TrackOutput playerEmsgTrackOutput) {
  this(
      periodDurationUs,
      representation,
      createExtractorWrapper(
          trackType,
          representation,
          enableEventMessageTrack,
          enableCea608Track,
          playerEmsgTrackOutput),
      /* segmentNumShift= */ 0,
      representation.getIndex());
}
 

/**
 * Loads {@link DrmInitData} for a given period in a DASH manifest.
 *
 * @param dataSource The {@link HttpDataSource} from which data should be loaded.
 * @param period The {@link Period}.
 * @return The loaded {@link DrmInitData}, or null if none is defined.
 * @throws IOException Thrown when there is an error while loading.
 * @throws InterruptedException Thrown if the thread was interrupted.
 */
public static @Nullable DrmInitData loadDrmInitData(DataSource dataSource, Period period)
    throws IOException, InterruptedException {
  int primaryTrackType = C.TRACK_TYPE_VIDEO;
  Representation representation = getFirstRepresentation(period, primaryTrackType);
  if (representation == null) {
    primaryTrackType = C.TRACK_TYPE_AUDIO;
    representation = getFirstRepresentation(period, primaryTrackType);
    if (representation == null) {
      return null;
    }
  }
  Format manifestFormat = representation.format;
  Format sampleFormat = DashUtil.loadSampleFormat(dataSource, primaryTrackType, representation);
  return sampleFormat == null
      ? manifestFormat.drmInitData
      : sampleFormat.copyWithManifestFormatInfo(manifestFormat).drmInitData;
}
 

/**
 * Loads {@link DrmInitData} for a given period in a DASH manifest.
 *
 * @param dataSource The {@link HttpDataSource} from which data should be loaded.
 * @param period The {@link Period}.
 * @return The loaded {@link DrmInitData}, or null if none is defined.
 * @throws IOException Thrown when there is an error while loading.
 * @throws InterruptedException Thrown if the thread was interrupted.
 */
public static @Nullable DrmInitData loadDrmInitData(DataSource dataSource, Period period)
    throws IOException, InterruptedException {
  int primaryTrackType = C.TRACK_TYPE_VIDEO;
  Representation representation = getFirstRepresentation(period, primaryTrackType);
  if (representation == null) {
    primaryTrackType = C.TRACK_TYPE_AUDIO;
    representation = getFirstRepresentation(period, primaryTrackType);
    if (representation == null) {
      return null;
    }
  }
  Format manifestFormat = representation.format;
  Format sampleFormat = DashUtil.loadSampleFormat(dataSource, primaryTrackType, representation);
  return sampleFormat == null
      ? manifestFormat.drmInitData
      : sampleFormat.copyWithManifestFormatInfo(manifestFormat).drmInitData;
}
 

@Override
public TrackGroupArray getTrackGroups(int periodIndex) {
  Assertions.checkNotNull(manifest);
  List<AdaptationSet> adaptationSets = manifest.getPeriod(periodIndex).adaptationSets;
  TrackGroup[] trackGroups = new TrackGroup[adaptationSets.size()];
  for (int i = 0; i < trackGroups.length; i++) {
    List<Representation> representations = adaptationSets.get(i).representations;
    Format[] formats = new Format[representations.size()];
    int representationsCount = representations.size();
    for (int j = 0; j < representationsCount; j++) {
      formats[j] = representations.get(j).format;
    }
    trackGroups[i] = new TrackGroup(formats);
  }
  return new TrackGroupArray(trackGroups);
}
 

@Override
public void updateManifest(DashManifest newManifest, int newPeriodIndex) {
  try {
    manifest = newManifest;
    periodIndex = newPeriodIndex;
    long periodDurationUs = manifest.getPeriodDurationUs(periodIndex);
    List<Representation> representations = getRepresentations();
    for (int i = 0; i < representationHolders.length; i++) {
      Representation representation = representations.get(trackSelection.getIndexInTrackGroup(i));
      representationHolders[i] =
          representationHolders[i].copyWithNewRepresentation(periodDurationUs, representation);
    }
  } catch (BehindLiveWindowException e) {
    fatalError = e;
  }
}
 

RepresentationHolder(
    long periodDurationUs,
    int trackType,
    Representation representation,
    boolean enableEventMessageTrack,
    boolean enableCea608Track,
    TrackOutput playerEmsgTrackOutput) {
  this(
      periodDurationUs,
      representation,
      createExtractorWrapper(
          trackType,
          representation,
          enableEventMessageTrack,
          enableCea608Track,
          playerEmsgTrackOutput),
      /* segmentNumShift= */ 0,
      representation.getIndex());
}
 

@Override
public TrackGroupArray getTrackGroups(int periodIndex) {
  Assertions.checkNotNull(manifest);
  List<AdaptationSet> adaptationSets = manifest.getPeriod(periodIndex).adaptationSets;
  TrackGroup[] trackGroups = new TrackGroup[adaptationSets.size()];
  for (int i = 0; i < trackGroups.length; i++) {
    List<Representation> representations = adaptationSets.get(i).representations;
    Format[] formats = new Format[representations.size()];
    int representationsCount = representations.size();
    for (int j = 0; j < representationsCount; j++) {
      formats[j] = representations.get(j).format;
    }
    trackGroups[i] = new TrackGroup(formats);
  }
  return new TrackGroupArray(trackGroups);
}
 

/**
 * @param manifestLoaderErrorThrower Throws errors affecting loading of manifests.
 * @param manifest The initial manifest.
 * @param periodIndex The index of the period in the manifest.
 * @param adaptationSetIndex The index of the adaptation set in the period.
 * @param trackSelection The track selection.
 * @param dataSource A {@link DataSource} suitable for loading the media data.
 * @param elapsedRealtimeOffsetMs If known, an estimate of the instantaneous difference between
 *     server-side unix time and {@link SystemClock#elapsedRealtime()} in milliseconds, specified
 *     as the server's unix time minus the local elapsed time. If unknown, set to 0.
 * @param maxSegmentsPerLoad The maximum number of segments to combine into a single request.
 *     Note that segments will only be combined if their {@link Uri}s are the same and if their
 *     data ranges are adjacent.
 * @param enableEventMessageTrack Whether the chunks generated by the source may output an event
 *     message track.
 * @param enableEventMessageTrack Whether the chunks generated by the source may output a CEA-608
 *     track.
 */
public DefaultDashChunkSource(LoaderErrorThrower manifestLoaderErrorThrower,
    DashManifest manifest, int periodIndex, int adaptationSetIndex, TrackSelection trackSelection,
    DataSource dataSource, long elapsedRealtimeOffsetMs, int maxSegmentsPerLoad,
    boolean enableEventMessageTrack, boolean enableCea608Track) {
  this.manifestLoaderErrorThrower = manifestLoaderErrorThrower;
  this.manifest = manifest;
  this.adaptationSetIndex = adaptationSetIndex;
  this.trackSelection = trackSelection;
  this.dataSource = dataSource;
  this.periodIndex = periodIndex;
  this.elapsedRealtimeOffsetMs = elapsedRealtimeOffsetMs;
  this.maxSegmentsPerLoad = maxSegmentsPerLoad;

  long periodDurationUs = manifest.getPeriodDurationUs(periodIndex);
  AdaptationSet adaptationSet = getAdaptationSet();
  List<Representation> representations = adaptationSet.representations;
  representationHolders = new RepresentationHolder[trackSelection.length()];
  for (int i = 0; i < representationHolders.length; i++) {
    Representation representation = representations.get(trackSelection.getIndexInTrackGroup(i));
    representationHolders[i] = new RepresentationHolder(periodDurationUs, representation,
        enableEventMessageTrack, enableCea608Track, adaptationSet.type);
  }
}
 

@Override
public void updateManifest(DashManifest newManifest, int newPeriodIndex) {
  try {
    manifest = newManifest;
    periodIndex = newPeriodIndex;
    long periodDurationUs = manifest.getPeriodDurationUs(periodIndex);
    List<Representation> representations = getRepresentations();
    for (int i = 0; i < representationHolders.length; i++) {
      Representation representation = representations.get(trackSelection.getIndexInTrackGroup(i));
      representationHolders[i] =
          representationHolders[i].copyWithNewRepresentation(periodDurationUs, representation);
    }
  } catch (BehindLiveWindowException e) {
    fatalError = e;
  }
}
 

RepresentationHolder(
    long periodDurationUs,
    int trackType,
    Representation representation,
    boolean enableEventMessageTrack,
    List<Format> closedCaptionFormats,
    TrackOutput playerEmsgTrackOutput) {
  this(
      periodDurationUs,
      representation,
      createExtractorWrapper(
          trackType,
          representation,
          enableEventMessageTrack,
          closedCaptionFormats,
          playerEmsgTrackOutput),
      /* segmentNumShift= */ 0,
      representation.getIndex());
}
 

/**
 * Loads {@link DrmInitData} for a given period in a DASH manifest.
 *
 * @param dataSource The {@link HttpDataSource} from which data should be loaded.
 * @param period The {@link Period}.
 * @return The loaded {@link DrmInitData}, or null if none is defined.
 * @throws IOException Thrown when there is an error while loading.
 * @throws InterruptedException Thrown if the thread was interrupted.
 */
public static @Nullable DrmInitData loadDrmInitData(DataSource dataSource, Period period)
    throws IOException, InterruptedException {
  int primaryTrackType = C.TRACK_TYPE_VIDEO;
  Representation representation = getFirstRepresentation(period, primaryTrackType);
  if (representation == null) {
    primaryTrackType = C.TRACK_TYPE_AUDIO;
    representation = getFirstRepresentation(period, primaryTrackType);
    if (representation == null) {
      return null;
    }
  }
  Format manifestFormat = representation.format;
  Format sampleFormat = DashUtil.loadSampleFormat(dataSource, primaryTrackType, representation);
  return sampleFormat == null
      ? manifestFormat.drmInitData
      : sampleFormat.copyWithManifestFormatInfo(manifestFormat).drmInitData;
}
 

@Override
public void updateManifest(DashManifest newManifest, int newPeriodIndex) {
  try {
    manifest = newManifest;
    periodIndex = newPeriodIndex;
    long periodDurationUs = manifest.getPeriodDurationUs(periodIndex);
    List<Representation> representations = getRepresentations();
    for (int i = 0; i < representationHolders.length; i++) {
      Representation representation = representations.get(trackSelection.getIndexInTrackGroup(i));
      representationHolders[i] =
          representationHolders[i].copyWithNewRepresentation(periodDurationUs, representation);
    }
  } catch (BehindLiveWindowException e) {
    fatalError = e;
  }
}
 

private static boolean hasEventMessageTrack(List<AdaptationSet> adaptationSets,
    int[] adaptationSetIndices) {
  for (int i : adaptationSetIndices) {
    List<Representation> representations = adaptationSets.get(i).representations;
    for (int j = 0; j < representations.size(); j++) {
      Representation representation = representations.get(j);
      if (!representation.inbandEventStreams.isEmpty()) {
        return true;
      }
    }
  }
  return false;
}
 

private static @Nullable Representation getFirstRepresentation(Period period, int type) {
  int index = period.getAdaptationSetIndex(type);
  if (index == C.INDEX_UNSET) {
    return null;
  }
  List<Representation> representations = period.adaptationSets.get(index).representations;
  return representations.isEmpty() ? null : representations.get(0);
}
 

private static void loadInitializationData(DataSource dataSource,
    Representation representation, ChunkExtractorWrapper extractorWrapper, RangedUri requestUri)
    throws IOException, InterruptedException {
  DataSpec dataSpec = new DataSpec(requestUri.resolveUri(representation.baseUrl),
      requestUri.start, requestUri.length, representation.getCacheKey());
  InitializationChunk initializationChunk = new InitializationChunk(dataSource, dataSpec,
      representation.format, C.SELECTION_REASON_UNKNOWN, null /* trackSelectionData */,
      extractorWrapper);
  initializationChunk.load();
}
 

private static boolean hasEventMessageTrack(List<AdaptationSet> adaptationSets,
    int[] adaptationSetIndices) {
  for (int i : adaptationSetIndices) {
    List<Representation> representations = adaptationSets.get(i).representations;
    for (int j = 0; j < representations.size(); j++) {
      Representation representation = representations.get(j);
      if (!representation.inbandEventStreams.isEmpty()) {
        return true;
      }
    }
  }
  return false;
}
 

private static @Nullable DashSegmentIndex getSegmentIndex(
    DataSource dataSource, int trackType, Representation representation)
    throws IOException, InterruptedException {
  DashSegmentIndex index = representation.getIndex();
  if (index != null) {
    return index;
  }
  ChunkIndex seekMap = DashUtil.loadChunkIndex(dataSource, trackType, representation);
  return seekMap == null
      ? null
      : new DashWrappingSegmentIndex(seekMap, representation.presentationTimeOffsetUs);
}
 

private static @Nullable Representation getFirstRepresentation(Period period, int type) {
  int index = period.getAdaptationSetIndex(type);
  if (index == C.INDEX_UNSET) {
    return null;
  }
  List<Representation> representations = period.adaptationSets.get(index).representations;
  return representations.isEmpty() ? null : representations.get(0);
}
 

@Override
public void updateManifest(DashManifest newManifest, int newPeriodIndex) {
  try {
    manifest = newManifest;
    periodIndex = newPeriodIndex;
    long periodDurationUs = manifest.getPeriodDurationUs(periodIndex);
    List<Representation> representations = getAdaptationSet().representations;
    for (int i = 0; i < representationHolders.length; i++) {
      Representation representation = representations.get(trackSelection.getIndexInTrackGroup(i));
      representationHolders[i].updateRepresentation(periodDurationUs, representation);
    }
  } catch (BehindLiveWindowException e) {
    fatalError = e;
  }
}
 

/**
 * Loads initialization data for the {@code representation} and optionally index data then
 * returns a {@link ChunkExtractorWrapper} which contains the output.
 *
 * @param dataSource The source from which the data should be loaded.
 * @param representation The representation which initialization chunk belongs to.
 * @param loadIndex Whether to load index data too.
 * @return A {@link ChunkExtractorWrapper} for the {@code representation}, or null if no
 *     initialization or (if requested) index data exists.
 * @throws IOException Thrown when there is an error while loading.
 * @throws InterruptedException Thrown if the thread was interrupted.
 */
private static ChunkExtractorWrapper loadInitializationData(DataSource dataSource,
    Representation representation, boolean loadIndex)
    throws IOException, InterruptedException {
  RangedUri initializationUri = representation.getInitializationUri();
  if (initializationUri == null) {
    return null;
  }
  ChunkExtractorWrapper extractorWrapper = newWrappedExtractor(representation.format);
  RangedUri requestUri;
  if (loadIndex) {
    RangedUri indexUri = representation.getIndexUri();
    if (indexUri == null) {
      return null;
    }
    // It's common for initialization and index data to be stored adjacently. Attempt to merge
    // the two requests together to request both at once.
    requestUri = initializationUri.attemptMerge(indexUri, representation.baseUrl);
    if (requestUri == null) {
      loadInitializationData(dataSource, representation, extractorWrapper, initializationUri);
      requestUri = indexUri;
    }
  } else {
    requestUri = initializationUri;
  }
  loadInitializationData(dataSource, representation, extractorWrapper, requestUri);
  return extractorWrapper;
}
 

private static void loadInitializationData(DataSource dataSource,
    Representation representation, ChunkExtractorWrapper extractorWrapper, RangedUri requestUri)
    throws IOException, InterruptedException {
  DataSpec dataSpec = new DataSpec(requestUri.resolveUri(representation.baseUrl),
      requestUri.start, requestUri.length, representation.getCacheKey());
  InitializationChunk initializationChunk = new InitializationChunk(dataSource, dataSpec,
      representation.format, C.SELECTION_REASON_UNKNOWN, null /* trackSelectionData */,
      extractorWrapper);
  initializationChunk.load();
}
 

private static boolean hasEventMessageTrack(AdaptationSet adaptationSet) {
  List<Representation> representations = adaptationSet.representations;
  for (int i = 0; i < representations.size(); i++) {
    Representation representation = representations.get(i);
    if (!representation.inbandEventStreams.isEmpty()) {
      return true;
    }
  }
  return false;
}
 

/**
 * Loads initialization data for the {@code representation} and optionally index data then returns
 * a {@link ChunkExtractorWrapper} which contains the output.
 *
 * @param dataSource The source from which the data should be loaded.
 * @param trackType The type of the representation. Typically one of the {@link
 *     com.google.android.exoplayer2.C} {@code TRACK_TYPE_*} constants.
 * @param representation The representation which initialization chunk belongs to.
 * @param loadIndex Whether to load index data too.
 * @return A {@link ChunkExtractorWrapper} for the {@code representation}, or null if no
 *     initialization or (if requested) index data exists.
 * @throws IOException Thrown when there is an error while loading.
 * @throws InterruptedException Thrown if the thread was interrupted.
 */
private static @Nullable ChunkExtractorWrapper loadInitializationData(
    DataSource dataSource, int trackType, Representation representation, boolean loadIndex)
    throws IOException, InterruptedException {
  RangedUri initializationUri = representation.getInitializationUri();
  if (initializationUri == null) {
    return null;
  }
  ChunkExtractorWrapper extractorWrapper = newWrappedExtractor(trackType, representation.format);
  RangedUri requestUri;
  if (loadIndex) {
    RangedUri indexUri = representation.getIndexUri();
    if (indexUri == null) {
      return null;
    }
    // It's common for initialization and index data to be stored adjacently. Attempt to merge
    // the two requests together to request both at once.
    requestUri = initializationUri.attemptMerge(indexUri, representation.baseUrl);
    if (requestUri == null) {
      loadInitializationData(dataSource, representation, extractorWrapper, initializationUri);
      requestUri = indexUri;
    }
  } else {
    requestUri = initializationUri;
  }
  loadInitializationData(dataSource, representation, extractorWrapper, requestUri);
  return extractorWrapper;
}
 

private RepresentationHolder(
    long periodDurationUs,
    Representation representation,
    @Nullable ChunkExtractorWrapper extractorWrapper,
    long segmentNumShift,
    @Nullable DashSegmentIndex segmentIndex) {
  this.periodDurationUs = periodDurationUs;
  this.representation = representation;
  this.segmentNumShift = segmentNumShift;
  this.extractorWrapper = extractorWrapper;
  this.segmentIndex = segmentIndex;
}