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

Example 6 with SampleQueue

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

the class SampleQueueTest method writeTestData.

/**
 * Writes the specified test data to {@code sampleQueue}.
 */
@SuppressWarnings("ReferenceEquality")
private void writeTestData(byte[] data, int[] sampleSizes, int[] sampleOffsets, long[] sampleTimestamps, Format[] sampleFormats, int[] sampleFlags) {
    sampleQueue.sampleData(new ParsableByteArray(data), data.length);
    Format format = null;
    for (int i = 0; i < sampleTimestamps.length; i++) {
        if (sampleFormats[i] != format) {
            sampleQueue.format(sampleFormats[i]);
            format = sampleFormats[i];
        }
        sampleQueue.sampleMetadata(sampleTimestamps[i], sampleFlags[i], sampleSizes[i], sampleOffsets[i], (sampleFlags[i] & C.BUFFER_FLAG_ENCRYPTED) != 0 ? CRYPTO_DATA : null);
    }
}

Example 7 with SampleQueue

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

the class RtspMediaPeriod method buildTrackGroups.

private static ImmutableList<TrackGroup> buildTrackGroups(ImmutableList<RtspLoaderWrapper> rtspLoaderWrappers) {
    ImmutableList.Builder<TrackGroup> listBuilder = new ImmutableList.Builder<>();
    SampleQueue sampleQueue;
    for (int i = 0; i < rtspLoaderWrappers.size(); i++) {
        sampleQueue = rtspLoaderWrappers.get(i).sampleQueue;
        listBuilder.add(new TrackGroup(/* id= */
        Integer.toString(i), checkNotNull(sampleQueue.getUpstreamFormat())));
    }
    return listBuilder.build();
}

Example 8 with SampleQueue

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

the class HlsSampleStreamWrapper method initMediaChunkLoad.

// Called by the consuming thread, but only when there is no loading thread.
/**
 * Performs initialization for a media chunk that's about to start loading.
 *
 * @param chunk The media chunk that's about to start loading.
 */
private void initMediaChunkLoad(HlsMediaChunk chunk) {
    sourceChunk = chunk;
    upstreamTrackFormat = chunk.trackFormat;
    pendingResetPositionUs = C.TIME_UNSET;
    mediaChunks.add(chunk);
    ImmutableList.Builder<Integer> sampleQueueWriteIndicesBuilder = ImmutableList.builder();
    for (SampleQueue sampleQueue : sampleQueues) {
        sampleQueueWriteIndicesBuilder.add(sampleQueue.getWriteIndex());
    }
    chunk.init(/* output= */
    this, sampleQueueWriteIndicesBuilder.build());
    for (HlsSampleQueue sampleQueue : sampleQueues) {
        sampleQueue.setSourceChunk(chunk);
        if (chunk.shouldSpliceIn) {
            sampleQueue.splice();
        }
    }
}

Example 9 with SampleQueue

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

the class HlsSampleStreamWrapper method seekInsideBufferUs.

/**
 * Attempts to seek to the specified position within the sample queues.
 *
 * @param positionUs The seek position in microseconds.
 * @return Whether the in-buffer seek was successful.
 */
private boolean seekInsideBufferUs(long positionUs) {
    int sampleQueueCount = sampleQueues.length;
    for (int i = 0; i < sampleQueueCount; i++) {
        SampleQueue sampleQueue = sampleQueues[i];
        boolean seekInsideQueue = sampleQueue.seekTo(positionUs, /* allowTimeBeyondBuffer= */
        false);
        // successful only if the seek into every queue succeeds.
        if (!seekInsideQueue && (sampleQueueIsAudioVideoFlags[i] || !haveAudioVideoSampleQueues)) {
            return false;
        }
    }
    return true;
}

Example 10 with SampleQueue

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

the class HlsSampleStreamWrapper method selectTracks.

/**
 * Called by the parent {@link HlsMediaPeriod} when a track selection occurs.
 *
 * @param selections The renderer track selections.
 * @param mayRetainStreamFlags Flags indicating whether the existing sample stream can be retained
 *     for each selection. A {@code true} value indicates that the selection is unchanged, and
 *     that the caller does not require that the sample stream be recreated.
 * @param streams The existing sample streams, which will be updated to reflect the provided
 *     selections.
 * @param streamResetFlags Will be updated to indicate new sample streams, and sample streams that
 *     have been retained but with the requirement that the consuming renderer be reset.
 * @param positionUs The current playback position in microseconds.
 * @param forceReset If true then a reset is forced (i.e. a seek will be performed with in-buffer
 *     seeking disabled).
 * @return Whether this wrapper requires the parent {@link HlsMediaPeriod} to perform a seek as
 *     part of the track selection.
 */
public boolean selectTracks(@NullableType ExoTrackSelection[] selections, boolean[] mayRetainStreamFlags, @NullableType SampleStream[] streams, boolean[] streamResetFlags, long positionUs, boolean forceReset) {
    assertIsPrepared();
    int oldEnabledTrackGroupCount = enabledTrackGroupCount;
    // Deselect old tracks.
    for (int i = 0; i < selections.length; i++) {
        HlsSampleStream stream = (HlsSampleStream) streams[i];
        if (stream != null && (selections[i] == null || !mayRetainStreamFlags[i])) {
            enabledTrackGroupCount--;
            stream.unbindSampleQueue();
            streams[i] = null;
        }
    }
    // We'll always need to seek if we're being forced to reset, or if this is a first selection to
    // a position other than the one we started preparing with, or if we're making a selection
    // having previously disabled all tracks.
    boolean seekRequired = forceReset || (seenFirstTrackSelection ? oldEnabledTrackGroupCount == 0 : positionUs != lastSeekPositionUs);
    // Get the old (i.e. current before the loop below executes) primary track selection. The new
    // primary selection will equal the old one unless it's changed in the loop.
    ExoTrackSelection oldPrimaryTrackSelection = chunkSource.getTrackSelection();
    ExoTrackSelection primaryTrackSelection = oldPrimaryTrackSelection;
    // Select new tracks.
    for (int i = 0; i < selections.length; i++) {
        ExoTrackSelection selection = selections[i];
        if (selection == null) {
            continue;
        }
        int trackGroupIndex = trackGroups.indexOf(selection.getTrackGroup());
        if (trackGroupIndex == primaryTrackGroupIndex) {
            primaryTrackSelection = selection;
            chunkSource.setTrackSelection(selection);
        }
        if (streams[i] == null) {
            enabledTrackGroupCount++;
            streams[i] = new HlsSampleStream(this, trackGroupIndex);
            streamResetFlags[i] = true;
            if (trackGroupToSampleQueueIndex != null) {
                ((HlsSampleStream) streams[i]).bindSampleQueue();
                // If there's still a chance of avoiding a seek, try and seek within the sample queue.
                if (!seekRequired) {
                    SampleQueue sampleQueue = sampleQueues[trackGroupToSampleQueueIndex[trackGroupIndex]];
                    // A seek can be avoided if we're able to seek to the current playback position in
                    // the sample queue, or if we haven't read anything from the queue since the previous
                    // seek (this case is common for sparse tracks such as metadata tracks). In all other
                    // cases a seek is required.
                    seekRequired = !sampleQueue.seekTo(positionUs, /* allowTimeBeyondBuffer= */
                    true) && sampleQueue.getReadIndex() != 0;
                }
            }
        }
    }
    if (enabledTrackGroupCount == 0) {
        chunkSource.reset();
        downstreamTrackFormat = null;
        pendingResetUpstreamFormats = true;
        mediaChunks.clear();
        if (loader.isLoading()) {
            if (sampleQueuesBuilt) {
                // Discard as much as we can synchronously.
                for (SampleQueue sampleQueue : sampleQueues) {
                    sampleQueue.discardToEnd();
                }
            }
            loader.cancelLoading();
        } else {
            resetSampleQueues();
        }
    } else {
        if (!mediaChunks.isEmpty() && !Util.areEqual(primaryTrackSelection, oldPrimaryTrackSelection)) {
            // The primary track selection has changed and we have buffered media. The buffered media
            // may need to be discarded.
            boolean primarySampleQueueDirty = false;
            if (!seenFirstTrackSelection) {
                long bufferedDurationUs = positionUs < 0 ? -positionUs : 0;
                HlsMediaChunk lastMediaChunk = getLastMediaChunk();
                MediaChunkIterator[] mediaChunkIterators = chunkSource.createMediaChunkIterators(lastMediaChunk, positionUs);
                primaryTrackSelection.updateSelectedTrack(positionUs, bufferedDurationUs, C.TIME_UNSET, readOnlyMediaChunks, mediaChunkIterators);
                int chunkIndex = chunkSource.getTrackGroup().indexOf(lastMediaChunk.trackFormat);
                if (primaryTrackSelection.getSelectedIndexInTrackGroup() != chunkIndex) {
                    // This is the first selection and the chunk loaded during preparation does not match
                    // the initially selected format.
                    primarySampleQueueDirty = true;
                }
            } else {
                // The primary sample queue contains media buffered for the old primary track selection.
                primarySampleQueueDirty = true;
            }
            if (primarySampleQueueDirty) {
                forceReset = true;
                seekRequired = true;
                pendingResetUpstreamFormats = true;
            }
        }
        if (seekRequired) {
            seekToUs(positionUs, forceReset);
            // We'll need to reset renderers consuming from all streams due to the seek.
            for (int i = 0; i < streams.length; i++) {
                if (streams[i] != null) {
                    streamResetFlags[i] = true;
                }
            }
        }
    }
    updateSampleStreams(streams);
    seenFirstTrackSelection = true;
    return seekRequired;
}