Examples with SequenceableLoader com.google.android.exoplayer2.source.SequenceableLoader used on opensource projects

Example 1 with SequenceableLoader

use of com.google.android.exoplayer2.source.SequenceableLoader in project ExoPlayer by google.

the class SsMediaPeriod method selectTracks.

@Override
public long selectTracks(TrackSelection[] selections, boolean[] mayRetainStreamFlags, SampleStream[] streams, boolean[] streamResetFlags, long positionUs) {
    ArrayList<ChunkSampleStream<SsChunkSource>> sampleStreamsList = new ArrayList<>();
    for (int i = 0; i < selections.length; i++) {
        if (streams[i] != null) {
            @SuppressWarnings("unchecked") ChunkSampleStream<SsChunkSource> stream = (ChunkSampleStream<SsChunkSource>) streams[i];
            if (selections[i] == null || !mayRetainStreamFlags[i]) {
                stream.release();
                streams[i] = null;
            } else {
                sampleStreamsList.add(stream);
            }
        }
        if (streams[i] == null && selections[i] != null) {
            ChunkSampleStream<SsChunkSource> stream = buildSampleStream(selections[i], positionUs);
            sampleStreamsList.add(stream);
            streams[i] = stream;
            streamResetFlags[i] = true;
        }
    }
    sampleStreams = newSampleStreamArray(sampleStreamsList.size());
    sampleStreamsList.toArray(sampleStreams);
    sequenceableLoader = new CompositeSequenceableLoader(sampleStreams);
    return positionUs;
}

Example 2 with SequenceableLoader

use of com.google.android.exoplayer2.source.SequenceableLoader in project ExoPlayer by google.

the class ChunkSampleStream method continueLoading.

// SequenceableLoader implementation
@Override
public boolean continueLoading(long positionUs) {
    if (loadingFinished || loader.isLoading() || loader.hasFatalError()) {
        return false;
    }
    boolean pendingReset = isPendingReset();
    List<BaseMediaChunk> chunkQueue;
    long loadPositionUs;
    if (pendingReset) {
        chunkQueue = Collections.emptyList();
        loadPositionUs = pendingResetPositionUs;
    } else {
        chunkQueue = readOnlyMediaChunks;
        loadPositionUs = getLastMediaChunk().endTimeUs;
    }
    chunkSource.getNextChunk(positionUs, loadPositionUs, chunkQueue, nextChunkHolder);
    boolean endOfStream = nextChunkHolder.endOfStream;
    @Nullable Chunk loadable = nextChunkHolder.chunk;
    nextChunkHolder.clear();
    if (endOfStream) {
        pendingResetPositionUs = C.TIME_UNSET;
        loadingFinished = true;
        return true;
    }
    if (loadable == null) {
        return false;
    }
    loadingChunk = loadable;
    if (isMediaChunk(loadable)) {
        BaseMediaChunk mediaChunk = (BaseMediaChunk) loadable;
        if (pendingReset) {
            // even if its timestamp is slightly earlier than the advertised chunk start time.
            if (mediaChunk.startTimeUs != pendingResetPositionUs) {
                primarySampleQueue.setStartTimeUs(pendingResetPositionUs);
                for (SampleQueue embeddedSampleQueue : embeddedSampleQueues) {
                    embeddedSampleQueue.setStartTimeUs(pendingResetPositionUs);
                }
            }
            pendingResetPositionUs = C.TIME_UNSET;
        }
        mediaChunk.init(chunkOutput);
        mediaChunks.add(mediaChunk);
    } else if (loadable instanceof InitializationChunk) {
        ((InitializationChunk) loadable).init(chunkOutput);
    }
    long elapsedRealtimeMs = loader.startLoading(loadable, this, loadErrorHandlingPolicy.getMinimumLoadableRetryCount(loadable.type));
    mediaSourceEventDispatcher.loadStarted(new LoadEventInfo(loadable.loadTaskId, loadable.dataSpec, elapsedRealtimeMs), loadable.type, primaryTrackType, loadable.trackFormat, loadable.trackSelectionReason, loadable.trackSelectionData, loadable.startTimeUs, loadable.endTimeUs);
    return true;
}

Example 3 with SequenceableLoader

use of com.google.android.exoplayer2.source.SequenceableLoader in project ExoPlayer by google.

the class FakeAdaptiveMediaPeriod method release.

/**
 * Releases the media period.
 */
public void release() {
    prepared = false;
    for (ChunkSampleStream<FakeChunkSource> sampleStream : sampleStreams) {
        sampleStream.release();
    }
    sampleStreams.clear();
    sequenceableLoader = new CompositeSequenceableLoader(new SequenceableLoader[0]);
}

Example 4 with SequenceableLoader

use of com.google.android.exoplayer2.source.SequenceableLoader in project ExoPlayer by google.

the class FakeAdaptiveMediaPeriod method selectTracks.

// Casting sample streams created by this class.
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public long selectTracks(@NullableType ExoTrackSelection[] selections, boolean[] mayRetainStreamFlags, @NullableType SampleStream[] streams, boolean[] streamResetFlags, long positionUs) {
    assertThat(prepared).isTrue();
    int rendererCount = selections.length;
    for (int i = 0; i < rendererCount; i++) {
        if (streams[i] != null && (selections[i] == null || !mayRetainStreamFlags[i])) {
            ((ChunkSampleStream<FakeChunkSource>) streams[i]).release();
            sampleStreams.remove(streams[i]);
            streams[i] = null;
        }
        if (streams[i] == null && selections[i] != null) {
            ExoTrackSelection selection = selections[i];
            assertThat(selection.length()).isAtLeast(1);
            TrackGroup trackGroup = selection.getTrackGroup();
            assertThat(trackGroupArray.indexOf(trackGroup)).isNotEqualTo(C.INDEX_UNSET);
            int indexInTrackGroup = selection.getIndexInTrackGroup(selection.getSelectedIndex());
            assertThat(indexInTrackGroup).isAtLeast(0);
            assertThat(indexInTrackGroup).isLessThan(trackGroup.length);
            FakeChunkSource chunkSource = chunkSourceFactory.createChunkSource(selection, durationUs, transferListener);
            ChunkSampleStream<FakeChunkSource> sampleStream = new ChunkSampleStream<>(MimeTypes.getTrackType(selection.getSelectedFormat().sampleMimeType), /* embeddedTrackTypes= */
            null, /* embeddedTrackFormats= */
            null, chunkSource, /* callback= */
            this, allocator, positionUs, DrmSessionManager.DRM_UNSUPPORTED, new DrmSessionEventListener.EventDispatcher(), new DefaultLoadErrorHandlingPolicy(/* minimumLoadableRetryCount= */
            3), mediaSourceEventDispatcher);
            streams[i] = sampleStream;
            sampleStreams.add(sampleStream);
            streamResetFlags[i] = true;
        }
    }
    sequenceableLoader = new CompositeSequenceableLoader(sampleStreams.toArray(new ChunkSampleStream[0]));
    return seekToUs(positionUs);
}

Example 5 with SequenceableLoader

use of com.google.android.exoplayer2.source.SequenceableLoader in project ExoPlayer by google.

the class DashMediaPeriod method selectTracks.

@Override
public long selectTracks(TrackSelection[] selections, boolean[] mayRetainStreamFlags, SampleStream[] streams, boolean[] streamResetFlags, long positionUs) {
    int adaptationSetCount = adaptationSets.size();
    HashMap<Integer, ChunkSampleStream<DashChunkSource>> primarySampleStreams = new HashMap<>();
    // First pass for primary tracks.
    for (int i = 0; i < selections.length; i++) {
        if (streams[i] instanceof ChunkSampleStream) {
            @SuppressWarnings("unchecked") ChunkSampleStream<DashChunkSource> stream = (ChunkSampleStream<DashChunkSource>) streams[i];
            if (selections[i] == null || !mayRetainStreamFlags[i]) {
                stream.release();
                streams[i] = null;
            } else {
                int adaptationSetIndex = trackGroups.indexOf(selections[i].getTrackGroup());
                primarySampleStreams.put(adaptationSetIndex, stream);
            }
        }
        if (streams[i] == null && selections[i] != null) {
            int trackGroupIndex = trackGroups.indexOf(selections[i].getTrackGroup());
            if (trackGroupIndex < adaptationSetCount) {
                ChunkSampleStream<DashChunkSource> stream = buildSampleStream(trackGroupIndex, selections[i], positionUs);
                primarySampleStreams.put(trackGroupIndex, stream);
                streams[i] = stream;
                streamResetFlags[i] = true;
            }
        }
    }
    // Second pass for embedded tracks.
    for (int i = 0; i < selections.length; i++) {
        if ((streams[i] instanceof EmbeddedSampleStream || streams[i] instanceof EmptySampleStream) && (selections[i] == null || !mayRetainStreamFlags[i])) {
            // The stream is for an embedded track and is either no longer selected or needs replacing.
            releaseIfEmbeddedSampleStream(streams[i]);
            streams[i] = null;
        }
        // may have been replaced, selected or deselected.
        if (selections[i] != null) {
            int trackGroupIndex = trackGroups.indexOf(selections[i].getTrackGroup());
            if (trackGroupIndex >= adaptationSetCount) {
                int embeddedTrackIndex = trackGroupIndex - adaptationSetCount;
                EmbeddedTrackInfo embeddedTrackInfo = embeddedTrackInfos[embeddedTrackIndex];
                int adaptationSetIndex = embeddedTrackInfo.adaptationSetIndex;
                ChunkSampleStream<?> primaryStream = primarySampleStreams.get(adaptationSetIndex);
                SampleStream stream = streams[i];
                boolean mayRetainStream = primaryStream == null ? stream instanceof EmptySampleStream : (stream instanceof EmbeddedSampleStream && ((EmbeddedSampleStream) stream).parent == primaryStream);
                if (!mayRetainStream) {
                    releaseIfEmbeddedSampleStream(stream);
                    streams[i] = primaryStream == null ? new EmptySampleStream() : primaryStream.selectEmbeddedTrack(positionUs, embeddedTrackInfo.trackType);
                    streamResetFlags[i] = true;
                }
            }
        }
    }
    sampleStreams = newSampleStreamArray(primarySampleStreams.size());
    primarySampleStreams.values().toArray(sampleStreams);
    sequenceableLoader = new CompositeSequenceableLoader(sampleStreams);
    return positionUs;
}