com.google.android.exoplayer2.trackselection.DefaultTrackSelector.SelectionOverride Java Examples

/**
 * Updates {@link DefaultTrackSelector.Parameters} with an override.
 *
 * @param parameters The current {@link DefaultTrackSelector.Parameters} to build upon.
 * @param rendererIndex The renderer index to update.
 * @param trackGroupArray The {@link TrackGroupArray} of the renderer.
 * @param isDisabled Whether the renderer should be set disabled.
 * @param override An optional override for the renderer. If null, no override will be set and an
 *     existing override for this renderer will be cleared.
 * @return The updated {@link DefaultTrackSelector.Parameters}.
 */
public static DefaultTrackSelector.Parameters updateParametersWithOverride(
    DefaultTrackSelector.Parameters parameters,
    int rendererIndex,
    TrackGroupArray trackGroupArray,
    boolean isDisabled,
    @Nullable SelectionOverride override) {
  DefaultTrackSelector.ParametersBuilder builder =
      parameters
          .buildUpon()
          .clearSelectionOverrides(rendererIndex)
          .setRendererDisabled(rendererIndex, isDisabled);
  if (override != null) {
    builder.setSelectionOverride(rendererIndex, trackGroupArray, override);
  }
  return builder.build();
}
 

/**
 * Convenience method to add a selection of tracks to be downloaded for a single renderer. Must
 * not be called until after preparation completes.
 *
 * @param periodIndex The period index the track selection is added for.
 * @param rendererIndex The renderer index the track selection is added for.
 * @param trackSelectorParameters The {@link DefaultTrackSelector.Parameters} to obtain the new
 *     selection of tracks.
 * @param overrides A list of {@link SelectionOverride SelectionOverrides} to apply to the {@code
 *     trackSelectorParameters}. If empty, {@code trackSelectorParameters} are used as they are.
 */
public void addTrackSelectionForSingleRenderer(
    int periodIndex,
    int rendererIndex,
    DefaultTrackSelector.Parameters trackSelectorParameters,
    List<SelectionOverride> overrides) {
  assertPreparedWithMedia();
  DefaultTrackSelector.ParametersBuilder builder = trackSelectorParameters.buildUpon();
  for (int i = 0; i < mappedTrackInfos[periodIndex].getRendererCount(); i++) {
    builder.setRendererDisabled(/* rendererIndex= */ i, /* disabled= */ i != rendererIndex);
  }
  if (overrides.isEmpty()) {
    addTrackSelection(periodIndex, builder.build());
  } else {
    TrackGroupArray trackGroupArray = mappedTrackInfos[periodIndex].getTrackGroups(rendererIndex);
    for (int i = 0; i < overrides.size(); i++) {
      builder.setSelectionOverride(rendererIndex, trackGroupArray, overrides.get(i));
      addTrackSelection(periodIndex, builder.build());
    }
  }
}
 

/**
 * Updates {@link DefaultTrackSelector.Parameters} with an override.
 *
 * @param parameters The current {@link DefaultTrackSelector.Parameters} to build upon.
 * @param rendererIndex The renderer index to update.
 * @param trackGroupArray The {@link TrackGroupArray} of the renderer.
 * @param isDisabled Whether the renderer should be set disabled.
 * @param override An optional override for the renderer. If null, no override will be set and an
 *     existing override for this renderer will be cleared.
 * @return The updated {@link DefaultTrackSelector.Parameters}.
 */
public static DefaultTrackSelector.Parameters updateParametersWithOverride(
    DefaultTrackSelector.Parameters parameters,
    int rendererIndex,
    TrackGroupArray trackGroupArray,
    boolean isDisabled,
    @Nullable SelectionOverride override) {
  DefaultTrackSelector.ParametersBuilder builder =
      parameters
          .buildUpon()
          .clearSelectionOverrides(rendererIndex)
          .setRendererDisabled(rendererIndex, isDisabled);
  if (override != null) {
    builder.setSelectionOverride(rendererIndex, trackGroupArray, override);
  }
  return builder.build();
}
 

/**
 * Convenience method to add a selection of tracks to be downloaded for a single renderer. Must
 * not be called until after preparation completes.
 *
 * @param periodIndex The period index the track selection is added for.
 * @param rendererIndex The renderer index the track selection is added for.
 * @param trackSelectorParameters The {@link DefaultTrackSelector.Parameters} to obtain the new
 *     selection of tracks.
 * @param overrides A list of {@link SelectionOverride SelectionOverrides} to apply to the {@code
 *     trackSelectorParameters}. If empty, {@code trackSelectorParameters} are used as they are.
 */
public void addTrackSelectionForSingleRenderer(
    int periodIndex,
    int rendererIndex,
    DefaultTrackSelector.Parameters trackSelectorParameters,
    List<SelectionOverride> overrides) {
  assertPreparedWithMedia();
  DefaultTrackSelector.ParametersBuilder builder = trackSelectorParameters.buildUpon();
  for (int i = 0; i < mappedTrackInfos[periodIndex].getRendererCount(); i++) {
    builder.setRendererDisabled(/* rendererIndex= */ i, /* disabled= */ i != rendererIndex);
  }
  if (overrides.isEmpty()) {
    addTrackSelection(periodIndex, builder.build());
  } else {
    TrackGroupArray trackGroupArray = mappedTrackInfos[periodIndex].getTrackGroups(rendererIndex);
    for (int i = 0; i < overrides.size(); i++) {
      builder.setSelectionOverride(rendererIndex, trackGroupArray, overrides.get(i));
      addTrackSelection(periodIndex, builder.build());
    }
  }
}
 

/**
 * Updates {@link DefaultTrackSelector.Parameters} with an override.
 *
 * @param parameters The current {@link DefaultTrackSelector.Parameters} to build upon.
 * @param rendererIndex The renderer index to update.
 * @param trackGroupArray The {@link TrackGroupArray} of the renderer.
 * @param isDisabled Whether the renderer should be set disabled.
 * @param override An optional override for the renderer. If null, no override will be set and an
 *     existing override for this renderer will be cleared.
 * @return The updated {@link DefaultTrackSelector.Parameters}.
 */
public static DefaultTrackSelector.Parameters updateParametersWithOverride(
    DefaultTrackSelector.Parameters parameters,
    int rendererIndex,
    TrackGroupArray trackGroupArray,
    boolean isDisabled,
    @Nullable SelectionOverride override) {
  DefaultTrackSelector.ParametersBuilder builder =
      parameters
          .buildUpon()
          .clearSelectionOverrides(rendererIndex)
          .setRendererDisabled(rendererIndex, isDisabled);
  if (override != null) {
    builder.setSelectionOverride(rendererIndex, trackGroupArray, override);
  }
  return builder.build();
}
 

/**
 * Convenience method to add a selection of tracks to be downloaded for a single renderer. Must
 * not be called until after preparation completes.
 *
 * @param periodIndex The period index the track selection is added for.
 * @param rendererIndex The renderer index the track selection is added for.
 * @param trackSelectorParameters The {@link DefaultTrackSelector.Parameters} to obtain the new
 *     selection of tracks.
 * @param overrides A list of {@link SelectionOverride SelectionOverrides} to apply to the {@code
 *     trackSelectorParameters}. If empty, {@code trackSelectorParameters} are used as they are.
 */
public void addTrackSelectionForSingleRenderer(
    int periodIndex,
    int rendererIndex,
    DefaultTrackSelector.Parameters trackSelectorParameters,
    List<SelectionOverride> overrides) {
  assertPreparedWithMedia();
  DefaultTrackSelector.ParametersBuilder builder = trackSelectorParameters.buildUpon();
  for (int i = 0; i < mappedTrackInfos[periodIndex].getRendererCount(); i++) {
    builder.setRendererDisabled(/* rendererIndex= */ i, /* disabled= */ i != rendererIndex);
  }
  if (overrides.isEmpty()) {
    addTrackSelection(periodIndex, builder.build());
  } else {
    TrackGroupArray trackGroupArray = mappedTrackInfos[periodIndex].getTrackGroups(rendererIndex);
    for (int i = 0; i < overrides.size(); i++) {
      builder.setSelectionOverride(rendererIndex, trackGroupArray, overrides.get(i));
      addTrackSelection(periodIndex, builder.build());
    }
  }
}
 

private static int[] getTracksRemoving(SelectionOverride override, int removedTrack) {
    int[] tracks = new int[override.length - 1];
    int trackCount = 0;
    for (int i = 0; i < tracks.length + 1; i++) {
        int track = override.tracks[i];
        if (track != removedTrack) {
            tracks[trackCount++] = track;
        }
    }
    return tracks;
}
 

private void setOverride(int group, int[] tracks, boolean enableRandomAdaptation) {
    TrackSelection.Factory factory = tracks.length == 1 ? FIXED_FACTORY
            : (enableRandomAdaptation ? RANDOM_FACTORY : adaptiveVideoTrackSelectionFactory);
    override = new SelectionOverride(group, tracks);
}
 

private static int[] getTracksAdding(SelectionOverride override, int addedTrack) {
    int[] tracks = override.tracks;
    tracks = Arrays.copyOf(tracks, tracks.length + 1);
    tracks[tracks.length - 1] = addedTrack;
    return tracks;
}