Refactor #6.HLS.1
1. Merge HlsOutput and HlsSampleSource -> HlsTrackStreamWrapper. 2. Rename HlsSource -> HlsSampleSource2. This will be renamed to HlsSampleSource in a subsequent CL. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=122415970
This commit is contained in:
olly
Oliver Woodman
parent
51cf8bed29
commit
770f2c2c58
@ -29,7 +29,7 @@ import com.google.android.exoplayer.demo.player.DemoPlayer;
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import com.google.android.exoplayer.demo.ui.TrackSelectionHelper;
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import com.google.android.exoplayer.drm.UnsupportedDrmException;
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import com.google.android.exoplayer.extractor.ExtractorSampleSource;
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import com.google.android.exoplayer.hls.HlsSource;
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import com.google.android.exoplayer.hls.HlsSampleSource2;
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import com.google.android.exoplayer.metadata.id3.GeobFrame;
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import com.google.android.exoplayer.metadata.id3.Id3Frame;
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import com.google.android.exoplayer.metadata.id3.PrivFrame;
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@ -278,7 +278,7 @@ public class PlayerActivity extends Activity implements SurfaceHolder.Callback,
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return new DashSampleSource(uri, dataSourceFactory, player.getBandwidthMeter(),
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player.getMainHandler(), player);
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case Util.TYPE_HLS:
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return new HlsSource(uri, dataSourceFactory, player.getBandwidthMeter(),
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return new HlsSampleSource2(uri, dataSourceFactory, player.getBandwidthMeter(),
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player.getMainHandler(), player);
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case Util.TYPE_OTHER:
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Allocator allocator = new DefaultAllocator(C.DEFAULT_BUFFER_SEGMENT_SIZE);
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@ -461,7 +461,7 @@ public class HlsChunkSource {
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}
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/**
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* Invoked when the {@link HlsSampleSource} has finished loading a chunk obtained from this
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* Invoked when the {@link HlsTrackStreamWrapper} has finished loading a chunk obtained from this
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* source.
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*
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* @param chunk The chunk whose load has been completed.
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@ -480,8 +480,8 @@ public class HlsChunkSource {
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}
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/**
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* Invoked when the {@link HlsSampleSource} encounters an error loading a chunk obtained from
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* this source.
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* Invoked when the {@link HlsTrackStreamWrapper} encounters an error loading a chunk obtained
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* from this source.
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*
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* @param chunk The chunk whose load encountered the error.
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* @param cancelable Whether the load can be canceled.
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@ -59,9 +59,9 @@ import java.io.IOException;
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* @param discontinuitySequenceNumber The discontinuity sequence number of the chunk.
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* @param extractor The extractor to parse samples from the data.
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* @param extractorNeedsInit Whether the extractor needs initializing with the target
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* {@link HlsOutput}.
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* {@link HlsTrackStreamWrapper}.
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* @param shouldSpliceIn Whether the samples parsed from this chunk should be spliced into any
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* samples already queued to the {@link HlsOutput}.
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* samples already queued to the {@link HlsTrackStreamWrapper}.
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* @param encryptionKey For AES encryption chunks, the encryption key.
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* @param encryptionIv For AES encryption chunks, the encryption initialization vector.
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*/
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@ -80,12 +80,12 @@ import java.io.IOException;
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}
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/**
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* Initializes the chunk for loading, setting the {@link HlsOutput} that will receive samples as
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* they are loaded.
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* Initializes the chunk for loading, setting the {@link HlsTrackStreamWrapper} that will receive
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* samples as they are loaded.
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*
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* @param output The output that will receive the loaded samples.
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*/
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public void init(HlsOutput output) {
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public void init(HlsTrackStreamWrapper output) {
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if (shouldSpliceIn) {
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output.splice();
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}
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@ -1,119 +0,0 @@
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.exoplayer.hls;
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import com.google.android.exoplayer.extractor.DefaultTrackOutput;
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import com.google.android.exoplayer.extractor.ExtractorOutput;
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import com.google.android.exoplayer.extractor.SeekMap;
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import com.google.android.exoplayer.upstream.Allocator;
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import android.util.SparseArray;
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/**
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* An {@link ExtractorOutput} for HLS playbacks.
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*/
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/* package */ final class HlsOutput implements ExtractorOutput {
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private final Allocator allocator;
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private final SparseArray<DefaultTrackOutput> sampleQueues = new SparseArray<>();
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private boolean prepared;
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private DefaultTrackOutput[] trackOutputArray;
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private volatile boolean tracksBuilt;
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public HlsOutput(Allocator allocator) {
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this.allocator = allocator;
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}
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// Called by the consuming thread.
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/**
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* Prepares the output, or does nothing if the output is already prepared.
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*
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* @return True if the output is prepared, false otherwise.
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*/
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public boolean prepare() {
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if (prepared) {
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return true;
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} else if (!tracksBuilt) {
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return false;
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} else {
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if (trackOutputArray == null) {
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trackOutputArray = new DefaultTrackOutput[sampleQueues.size()];
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for (int i = 0; i < trackOutputArray.length; i++) {
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trackOutputArray[i] = sampleQueues.valueAt(i);
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}
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}
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for (DefaultTrackOutput sampleQueue : trackOutputArray) {
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if (sampleQueue.getUpstreamFormat() == null) {
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return false;
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}
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}
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prepared = true;
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return true;
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}
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}
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/**
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* Returns the array of track outputs, or null if the output is not yet prepared.
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*/
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public DefaultTrackOutput[] getTrackOutputs() {
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return trackOutputArray;
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}
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// Called by the consuming thread, but only when there is no loading thread.
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/**
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* Clears all track outputs.
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*/
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public void clear() {
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for (int i = 0; i < sampleQueues.size(); i++) {
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sampleQueues.valueAt(i).clear();
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}
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}
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/**
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* Indicates to all track outputs that they should splice in subsequently queued samples.
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*/
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public void splice() {
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for (int i = 0; i < sampleQueues.size(); i++) {
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sampleQueues.valueAt(i).splice();
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}
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}
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// ExtractorOutput implementation. Called by the loading thread.
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@Override
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public DefaultTrackOutput track(int id) {
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if (sampleQueues.indexOfKey(id) >= 0) {
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return sampleQueues.get(id);
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}
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DefaultTrackOutput trackOutput = new DefaultTrackOutput(allocator);
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sampleQueues.put(id, trackOutput);
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return trackOutput;
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}
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@Override
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public void endTracks() {
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tracksBuilt = true;
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}
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@Override
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public void seekMap(SeekMap seekMap) {
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// Do nothing.
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}
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}
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@ -46,21 +46,22 @@ import java.util.List;
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/**
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* A {@link SampleSource} for HLS streams.
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*/
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public final class HlsSource implements SampleSource {
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public final class HlsSampleSource2 implements SampleSource {
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private final ManifestFetcher<HlsPlaylist> manifestFetcher;
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private final HlsSampleSource[] sources;
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private final IdentityHashMap<TrackStream, HlsSampleSource> trackStreamSources;
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private final HlsTrackStreamWrapper[] trackStreamWrappers;
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private final IdentityHashMap<TrackStream, HlsTrackStreamWrapper> trackStreamSources;
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private final int[] selectedTrackCounts;
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private boolean prepared;
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private boolean seenFirstTrackSelection;
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private long durationUs;
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private TrackGroupArray trackGroups;
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private HlsSampleSource[] enabledSources;
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private HlsTrackStreamWrapper[] enabledTrackStreamWrappers;
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public HlsSource(Uri uri, DataSourceFactory dataSourceFactory, BandwidthMeter bandwidthMeter,
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Handler eventHandler, ChunkTrackStreamEventListener eventListener) {
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public HlsSampleSource2(Uri uri, DataSourceFactory dataSourceFactory,
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BandwidthMeter bandwidthMeter, Handler eventHandler,
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ChunkTrackStreamEventListener eventListener) {
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HlsPlaylistParser parser = new HlsPlaylistParser();
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DataSource manifestDataSource = dataSourceFactory.createDataSource();
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manifestFetcher = new ManifestFetcher<>(uri, manifestDataSource, parser);
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@ -73,23 +74,25 @@ public final class HlsSource implements SampleSource {
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HlsChunkSource defaultChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_DEFAULT,
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defaultDataSource, timestampAdjusterProvider,
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new FormatEvaluator.AdaptiveEvaluator(bandwidthMeter));
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HlsSampleSource defaultSampleSource = new HlsSampleSource(defaultChunkSource, loadControl,
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C.DEFAULT_MUXED_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_VIDEO);
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HlsTrackStreamWrapper defaultTrackStreamWrapper = new HlsTrackStreamWrapper(defaultChunkSource,
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loadControl, C.DEFAULT_MUXED_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_VIDEO);
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DataSource audioDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource audioChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_AUDIO,
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audioDataSource, timestampAdjusterProvider, null);
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HlsSampleSource audioSampleSource = new HlsSampleSource(audioChunkSource, loadControl,
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C.DEFAULT_AUDIO_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_AUDIO);
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HlsTrackStreamWrapper audioTrackStreamWrapper = new HlsTrackStreamWrapper(audioChunkSource,
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loadControl, C.DEFAULT_AUDIO_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_AUDIO);
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DataSource subtitleDataSource = dataSourceFactory.createDataSource(bandwidthMeter);
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HlsChunkSource subtitleChunkSource = new HlsChunkSource(manifestFetcher, C.TRACK_TYPE_TEXT,
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subtitleDataSource, timestampAdjusterProvider, null);
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HlsSampleSource subtitleSampleSource = new HlsSampleSource(subtitleChunkSource, loadControl,
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C.DEFAULT_TEXT_BUFFER_SIZE, eventHandler, eventListener, C.TRACK_TYPE_TEXT);
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HlsTrackStreamWrapper subtitleTrackStreamWrapper = new HlsTrackStreamWrapper(
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subtitleChunkSource, loadControl, C.DEFAULT_TEXT_BUFFER_SIZE, eventHandler, eventListener,
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C.TRACK_TYPE_TEXT);
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sources = new HlsSampleSource[] {defaultSampleSource, audioSampleSource, subtitleSampleSource};
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selectedTrackCounts = new int[sources.length];
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trackStreamWrappers = new HlsTrackStreamWrapper[] {defaultTrackStreamWrapper,
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audioTrackStreamWrapper, subtitleTrackStreamWrapper};
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selectedTrackCounts = new int[trackStreamWrappers.length];
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trackStreamSources = new IdentityHashMap<>();
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}
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@ -98,29 +101,29 @@ public final class HlsSource implements SampleSource {
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if (prepared) {
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return true;
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}
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boolean sourcesPrepared = true;
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for (HlsSampleSource source : sources) {
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sourcesPrepared &= source.prepare(positionUs);
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boolean trackStreamWrappersPrepared = true;
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for (HlsTrackStreamWrapper trackStreamWrapper : trackStreamWrappers) {
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trackStreamWrappersPrepared &= trackStreamWrapper.prepare(positionUs);
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}
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if (!sourcesPrepared) {
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if (!trackStreamWrappersPrepared) {
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return false;
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}
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durationUs = 0;
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int totalTrackGroupCount = 0;
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for (HlsSampleSource source : sources) {
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totalTrackGroupCount += source.getTrackGroups().length;
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for (HlsTrackStreamWrapper trackStreamWrapper : trackStreamWrappers) {
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totalTrackGroupCount += trackStreamWrapper.getTrackGroups().length;
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if (durationUs != C.UNSET_TIME_US) {
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long sourceDurationUs = source.getDurationUs();
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durationUs = sourceDurationUs == C.UNSET_TIME_US
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? C.UNSET_TIME_US : Math.max(durationUs, sourceDurationUs);
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long wrapperDurationUs = trackStreamWrapper.getDurationUs();
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durationUs = wrapperDurationUs == C.UNSET_TIME_US
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? C.UNSET_TIME_US : Math.max(durationUs, wrapperDurationUs);
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}
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}
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TrackGroup[] trackGroupArray = new TrackGroup[totalTrackGroupCount];
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int trackGroupIndex = 0;
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for (HlsSampleSource source : sources) {
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int sourceTrackGroupCount = source.getTrackGroups().length;
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for (int j = 0; j < sourceTrackGroupCount; j++) {
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trackGroupArray[trackGroupIndex++] = source.getTrackGroups().get(j);
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for (HlsTrackStreamWrapper trackStreamWrapper : trackStreamWrappers) {
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int wrapperTrackGroupCount = trackStreamWrapper.getTrackGroups().length;
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for (int j = 0; j < wrapperTrackGroupCount; j++) {
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trackGroupArray[trackGroupIndex++] = trackStreamWrapper.getTrackGroups().get(j);
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}
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}
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trackGroups = new TrackGroupArray(trackGroupArray);
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@ -143,21 +146,21 @@ public final class HlsSource implements SampleSource {
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List<TrackSelection> newSelections, long positionUs) {
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Assertions.checkState(prepared);
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TrackStream[] newStreams = new TrackStream[newSelections.size()];
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// Select tracks for each source.
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int enabledSourceCount = 0;
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for (int i = 0; i < sources.length; i++) {
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selectedTrackCounts[i] += selectTracks(sources[i], oldStreams, newSelections, positionUs,
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newStreams);
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// Select tracks for each wrapper.
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int enabledTrackStreamWrapperCount = 0;
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for (int i = 0; i < trackStreamWrappers.length; i++) {
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selectedTrackCounts[i] += selectTracks(trackStreamWrappers[i], oldStreams, newSelections,
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positionUs, newStreams);
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if (selectedTrackCounts[i] > 0) {
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enabledSourceCount++;
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enabledTrackStreamWrapperCount++;
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}
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}
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// Update the enabled sources.
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enabledSources = new HlsSampleSource[enabledSourceCount];
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enabledSourceCount = 0;
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for (int i = 0; i < sources.length; i++) {
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// Update the enabled wrappers.
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enabledTrackStreamWrappers = new HlsTrackStreamWrapper[enabledTrackStreamWrapperCount];
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enabledTrackStreamWrapperCount = 0;
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for (int i = 0; i < trackStreamWrappers.length; i++) {
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if (selectedTrackCounts[i] > 0) {
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enabledSources[enabledSourceCount++] = sources[i];
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enabledTrackStreamWrappers[enabledTrackStreamWrapperCount++] = trackStreamWrappers[i];
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}
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}
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seenFirstTrackSelection = true;
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@ -166,16 +169,16 @@ public final class HlsSource implements SampleSource {
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@Override
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public void continueBuffering(long positionUs) {
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for (HlsSampleSource source : enabledSources) {
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source.continueBuffering(positionUs);
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for (HlsTrackStreamWrapper trackStreamWrapper : enabledTrackStreamWrappers) {
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trackStreamWrapper.continueBuffering(positionUs);
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}
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}
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@Override
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public long readReset() {
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long resetPositionUs = C.UNSET_TIME_US;
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for (HlsSampleSource source : enabledSources) {
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long childResetPositionUs = source.readReset();
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for (HlsTrackStreamWrapper trackStreamWrapper : enabledTrackStreamWrappers) {
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long childResetPositionUs = trackStreamWrapper.readReset();
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if (resetPositionUs == C.UNSET_TIME_US) {
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resetPositionUs = childResetPositionUs;
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} else if (childResetPositionUs != C.UNSET_TIME_US) {
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@ -188,12 +191,12 @@ public final class HlsSource implements SampleSource {
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@Override
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public long getBufferedPositionUs() {
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long bufferedPositionUs = durationUs != C.UNSET_TIME_US ? durationUs : Long.MAX_VALUE;
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for (HlsSampleSource source : enabledSources) {
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long rendererBufferedPositionUs = source.getBufferedPositionUs();
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for (HlsTrackStreamWrapper trackStreamWrapper : enabledTrackStreamWrappers) {
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long rendererBufferedPositionUs = trackStreamWrapper.getBufferedPositionUs();
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if (rendererBufferedPositionUs == C.UNSET_TIME_US) {
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return C.UNSET_TIME_US;
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} else if (rendererBufferedPositionUs == C.END_OF_SOURCE_US) {
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// This source is fully buffered.
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// This wrapper is fully buffered.
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} else {
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bufferedPositionUs = Math.min(bufferedPositionUs, rendererBufferedPositionUs);
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}
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@ -203,39 +206,40 @@ public final class HlsSource implements SampleSource {
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@Override
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public void seekToUs(long positionUs) {
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for (HlsSampleSource source : enabledSources) {
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source.seekToUs(positionUs);
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for (HlsTrackStreamWrapper trackStreamWrapper : enabledTrackStreamWrappers) {
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trackStreamWrapper.seekToUs(positionUs);
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}
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}
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@Override
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public void release() {
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manifestFetcher.release();
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for (HlsSampleSource source : sources) {
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source.release();
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for (HlsTrackStreamWrapper trackStreamWrapper : trackStreamWrappers) {
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trackStreamWrapper.release();
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}
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}
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// Internal methods.
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private int selectTracks(HlsSampleSource source, List<TrackStream> allOldStreams,
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List<TrackSelection> allNewSelections, long positionUs, TrackStream[] allNewStreams) {
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private int selectTracks(HlsTrackStreamWrapper trackStreamWrapper,
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List<TrackStream> allOldStreams, List<TrackSelection> allNewSelections, long positionUs,
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TrackStream[] allNewStreams) {
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// Get the subset of the old streams for the source.
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ArrayList<TrackStream> oldStreams = new ArrayList<>();
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for (int i = 0; i < allOldStreams.size(); i++) {
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TrackStream stream = allOldStreams.get(i);
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if (trackStreamSources.get(stream) == source) {
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if (trackStreamSources.get(stream) == trackStreamWrapper) {
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trackStreamSources.remove(stream);
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oldStreams.add(stream);
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}
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}
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// Get the subset of the new selections for the source.
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// Get the subset of the new selections for the wrapper.
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ArrayList<TrackSelection> newSelections = new ArrayList<>();
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int[] newSelectionOriginalIndices = new int[allNewSelections.size()];
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for (int i = 0; i < allNewSelections.size(); i++) {
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TrackSelection selection = allNewSelections.get(i);
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Pair<HlsSampleSource, Integer> sourceAndGroup = getSourceAndGroup(selection.group);
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if (sourceAndGroup.first == source) {
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Pair<HlsTrackStreamWrapper, Integer> sourceAndGroup = getSourceAndGroup(selection.group);
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if (sourceAndGroup.first == trackStreamWrapper) {
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newSelectionOriginalIndices[newSelections.size()] = i;
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newSelections.add(new TrackSelection(sourceAndGroup.second, selection.getTracks()));
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}
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@ -245,20 +249,21 @@ public final class HlsSource implements SampleSource {
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return 0;
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}
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// Perform the selection.
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TrackStream[] newStreams = source.selectTracks(oldStreams, newSelections, positionUs);
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TrackStream[] newStreams = trackStreamWrapper.selectTracks(oldStreams, newSelections,
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positionUs);
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for (int j = 0; j < newStreams.length; j++) {
|
||||
allNewStreams[newSelectionOriginalIndices[j]] = newStreams[j];
|
||||
trackStreamSources.put(newStreams[j], source);
|
||||
trackStreamSources.put(newStreams[j], trackStreamWrapper);
|
||||
}
|
||||
return newSelections.size() - oldStreams.size();
|
||||
}
|
||||
|
||||
private Pair<HlsSampleSource, Integer> getSourceAndGroup(int group) {
|
||||
private Pair<HlsTrackStreamWrapper, Integer> getSourceAndGroup(int group) {
|
||||
int totalTrackGroupCount = 0;
|
||||
for (HlsSampleSource source : sources) {
|
||||
int sourceTrackGroupCount = source.getTrackGroups().length;
|
||||
for (HlsTrackStreamWrapper trackStreamWrapper : trackStreamWrappers) {
|
||||
int sourceTrackGroupCount = trackStreamWrapper.getTrackGroups().length;
|
||||
if (group < totalTrackGroupCount + sourceTrackGroupCount) {
|
||||
return Pair.create(source, group - totalTrackGroupCount);
|
||||
return Pair.create(trackStreamWrapper, group - totalTrackGroupCount);
|
||||
}
|
||||
totalTrackGroupCount += sourceTrackGroupCount;
|
||||
}
|
||||
@ -20,7 +20,6 @@ import com.google.android.exoplayer.DecoderInputBuffer;
|
||||
import com.google.android.exoplayer.Format;
|
||||
import com.google.android.exoplayer.FormatHolder;
|
||||
import com.google.android.exoplayer.LoadControl;
|
||||
import com.google.android.exoplayer.SampleSource;
|
||||
import com.google.android.exoplayer.TrackGroup;
|
||||
import com.google.android.exoplayer.TrackGroupArray;
|
||||
import com.google.android.exoplayer.TrackSelection;
|
||||
@ -30,6 +29,8 @@ import com.google.android.exoplayer.chunk.ChunkHolder;
|
||||
import com.google.android.exoplayer.chunk.ChunkTrackStreamEventListener;
|
||||
import com.google.android.exoplayer.chunk.ChunkTrackStreamEventListener.EventDispatcher;
|
||||
import com.google.android.exoplayer.extractor.DefaultTrackOutput;
|
||||
import com.google.android.exoplayer.extractor.ExtractorOutput;
|
||||
import com.google.android.exoplayer.extractor.SeekMap;
|
||||
import com.google.android.exoplayer.upstream.Loader;
|
||||
import com.google.android.exoplayer.upstream.Loader.Loadable;
|
||||
import com.google.android.exoplayer.util.Assertions;
|
||||
@ -37,15 +38,17 @@ import com.google.android.exoplayer.util.MimeTypes;
|
||||
|
||||
import android.os.Handler;
|
||||
import android.os.SystemClock;
|
||||
import android.util.SparseArray;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.util.LinkedList;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* A {@link SampleSource} for HLS streams.
|
||||
* Loads {@link HlsMediaChunk}s obtained from a {@link HlsChunkSource}, and provides
|
||||
* {@link TrackStream}s from which the loaded media can be consumed.
|
||||
*/
|
||||
public final class HlsSampleSource implements Loader.Callback {
|
||||
/* package */ final class HlsTrackStreamWrapper implements Loader.Callback, ExtractorOutput {
|
||||
|
||||
/**
|
||||
* The default minimum number of times to retry loading data prior to failing.
|
||||
@ -59,18 +62,19 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
|
||||
private final Loader loader;
|
||||
private final HlsChunkSource chunkSource;
|
||||
private final SparseArray<DefaultTrackOutput> sampleQueues;
|
||||
private final LinkedList<HlsMediaChunk> mediaChunks;
|
||||
private final HlsOutput output;
|
||||
private final int bufferSizeContribution;
|
||||
private final ChunkHolder nextChunkHolder;
|
||||
private final EventDispatcher eventDispatcher;
|
||||
private final LoadControl loadControl;
|
||||
|
||||
private volatile boolean sampleQueuesBuilt;
|
||||
|
||||
private boolean prepared;
|
||||
private boolean seenFirstTrackSelection;
|
||||
private boolean notifyReset;
|
||||
private int enabledTrackCount;
|
||||
private DefaultTrackOutput[] sampleQueues;
|
||||
private Format downstreamFormat;
|
||||
|
||||
// Tracks are complicated in HLS. See documentation of buildTracks for details.
|
||||
@ -93,7 +97,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
* @param loadControl Controls when the source is permitted to load data.
|
||||
* @param bufferSizeContribution The contribution of this source to the media buffer, in bytes.
|
||||
*/
|
||||
public HlsSampleSource(HlsChunkSource chunkSource, LoadControl loadControl,
|
||||
public HlsTrackStreamWrapper(HlsChunkSource chunkSource, LoadControl loadControl,
|
||||
int bufferSizeContribution) {
|
||||
this(chunkSource, loadControl, bufferSizeContribution, null, null, 0);
|
||||
}
|
||||
@ -107,7 +111,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
* @param eventListener A listener of events. May be null if delivery of events is not required.
|
||||
* @param eventSourceId An identifier that gets passed to {@code eventListener} methods.
|
||||
*/
|
||||
public HlsSampleSource(HlsChunkSource chunkSource, LoadControl loadControl,
|
||||
public HlsTrackStreamWrapper(HlsChunkSource chunkSource, LoadControl loadControl,
|
||||
int bufferSizeContribution, Handler eventHandler,
|
||||
ChunkTrackStreamEventListener eventListener, int eventSourceId) {
|
||||
this(chunkSource, loadControl, bufferSizeContribution, eventHandler, eventListener,
|
||||
@ -125,7 +129,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
* @param minLoadableRetryCount The minimum number of times that the source should retry a load
|
||||
* before propagating an error.
|
||||
*/
|
||||
public HlsSampleSource(HlsChunkSource chunkSource, LoadControl loadControl,
|
||||
public HlsTrackStreamWrapper(HlsChunkSource chunkSource, LoadControl loadControl,
|
||||
int bufferSizeContribution, Handler eventHandler,
|
||||
ChunkTrackStreamEventListener eventListener, int eventSourceId, int minLoadableRetryCount) {
|
||||
this.chunkSource = chunkSource;
|
||||
@ -134,8 +138,8 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
loader = new Loader("Loader:HLS", minLoadableRetryCount);
|
||||
eventDispatcher = new EventDispatcher(eventHandler, eventListener, eventSourceId);
|
||||
nextChunkHolder = new ChunkHolder();
|
||||
sampleQueues = new SparseArray<>();
|
||||
mediaChunks = new LinkedList<>();
|
||||
output = new HlsOutput(loadControl.getAllocator());
|
||||
pendingResetPositionUs = C.UNSET_TIME_US;
|
||||
}
|
||||
|
||||
@ -151,11 +155,20 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
prepared = true;
|
||||
return true;
|
||||
}
|
||||
if (output.prepare()) {
|
||||
sampleQueues = output.getTrackOutputs();
|
||||
buildTracks();
|
||||
prepared = true;
|
||||
return true;
|
||||
if (sampleQueuesBuilt) {
|
||||
boolean canBuildTracks = true;
|
||||
int sampleQueueCount = sampleQueues.size();
|
||||
for (int i = 0; i < sampleQueueCount; i++) {
|
||||
if (sampleQueues.valueAt(i).getUpstreamFormat() == null) {
|
||||
canBuildTracks = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (canBuildTracks) {
|
||||
buildTracks();
|
||||
prepared = true;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
// We're not prepared.
|
||||
maybeThrowError();
|
||||
@ -195,7 +208,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
int group = selection.group;
|
||||
int[] tracks = selection.getTracks();
|
||||
setTrackGroupEnabledState(group, true);
|
||||
sampleQueues[group].needDownstreamFormat();
|
||||
sampleQueues.valueAt(group).needDownstreamFormat();
|
||||
if (group == primaryTrackGroupIndex) {
|
||||
primaryTracksDeselected |= chunkSource.selectTracks(tracks);
|
||||
}
|
||||
@ -256,9 +269,10 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
if (lastCompletedMediaChunk != null) {
|
||||
bufferedPositionUs = Math.max(bufferedPositionUs, lastCompletedMediaChunk.endTimeUs);
|
||||
}
|
||||
for (DefaultTrackOutput sampleQueue : sampleQueues) {
|
||||
int sampleQueueCount = sampleQueues.size();
|
||||
for (int i = 0; i < sampleQueueCount; i++) {
|
||||
bufferedPositionUs = Math.max(bufferedPositionUs,
|
||||
sampleQueue.getLargestQueuedTimestampUs());
|
||||
sampleQueues.valueAt(i).getLargestQueuedTimestampUs());
|
||||
}
|
||||
return bufferedPositionUs;
|
||||
}
|
||||
@ -279,7 +293,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
// TrackStream implementation.
|
||||
|
||||
/* package */ boolean isReady(int group) {
|
||||
return loadingFinished || (!isPendingReset() && !sampleQueues[group].isEmpty());
|
||||
return loadingFinished || (!isPendingReset() && !sampleQueues.valueAt(group).isEmpty());
|
||||
}
|
||||
|
||||
/* package */ void maybeThrowError() throws IOException {
|
||||
@ -303,7 +317,8 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
}
|
||||
downstreamFormat = format;
|
||||
|
||||
return sampleQueues[group].readData(formatHolder, buffer, loadingFinished, lastSeekPositionUs);
|
||||
return sampleQueues.valueAt(group).readData(formatHolder, buffer, loadingFinished,
|
||||
lastSeekPositionUs);
|
||||
}
|
||||
|
||||
// Loader.Callback implementation.
|
||||
@ -361,11 +376,44 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
}
|
||||
}
|
||||
|
||||
// Called by the consuming thread, but only when there is no loading thread.
|
||||
|
||||
/**
|
||||
* Indicates to all track outputs that they should splice in subsequently queued samples.
|
||||
*/
|
||||
public void splice() {
|
||||
for (int i = 0; i < sampleQueues.size(); i++) {
|
||||
sampleQueues.valueAt(i).splice();
|
||||
}
|
||||
}
|
||||
|
||||
// ExtractorOutput implementation. Called by the loading thread.
|
||||
|
||||
@Override
|
||||
public DefaultTrackOutput track(int id) {
|
||||
if (sampleQueues.indexOfKey(id) >= 0) {
|
||||
return sampleQueues.get(id);
|
||||
}
|
||||
DefaultTrackOutput trackOutput = new DefaultTrackOutput(loadControl.getAllocator());
|
||||
sampleQueues.put(id, trackOutput);
|
||||
return trackOutput;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void endTracks() {
|
||||
sampleQueuesBuilt = true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void seekMap(SeekMap seekMap) {
|
||||
// Do nothing.
|
||||
}
|
||||
|
||||
// Internal methods.
|
||||
|
||||
/**
|
||||
* Builds tracks that are exposed by this {@link HlsSampleSource} instance, as well as internal
|
||||
* data-structures required for operation.
|
||||
* Builds tracks that are exposed by this {@link HlsTrackStreamWrapper} instance, as well as
|
||||
* internal data-structures required for operation.
|
||||
* <p>
|
||||
* Tracks in HLS are complicated. A HLS master playlist contains a number of "variants". Each
|
||||
* variant stream typically contains muxed video, audio and (possibly) additional audio, metadata
|
||||
@ -378,7 +426,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
* adaptive track defined to span all variants and a track for each individual variant. The
|
||||
* adaptive track is initially selected. The extractor is then prepared to discover the tracks
|
||||
* inside of each variant stream. The two sets of tracks are then combined by this method to
|
||||
* create a third set, which is the set exposed by this {@link HlsSampleSource}:
|
||||
* create a third set, which is the set exposed by this {@link HlsTrackStreamWrapper}:
|
||||
* <ul>
|
||||
* <li>The extractor tracks are inspected to infer a "primary" track type. If a video track is
|
||||
* present then it is always the primary type. If not, audio is the primary type if present.
|
||||
@ -397,9 +445,9 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
// of the single track of this type.
|
||||
int primaryExtractorTrackType = PRIMARY_TYPE_NONE;
|
||||
int primaryExtractorTrackIndex = -1;
|
||||
int extractorTrackCount = sampleQueues.length;
|
||||
int extractorTrackCount = sampleQueues.size();
|
||||
for (int i = 0; i < extractorTrackCount; i++) {
|
||||
String sampleMimeType = sampleQueues[i].getUpstreamFormat().sampleMimeType;
|
||||
String sampleMimeType = sampleQueues.valueAt(i).getUpstreamFormat().sampleMimeType;
|
||||
int trackType;
|
||||
if (MimeTypes.isVideo(sampleMimeType)) {
|
||||
trackType = PRIMARY_TYPE_VIDEO;
|
||||
@ -430,7 +478,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
// Construct the set of exposed track groups.
|
||||
TrackGroup[] trackGroups = new TrackGroup[extractorTrackCount];
|
||||
for (int i = 0; i < extractorTrackCount; i++) {
|
||||
Format sampleFormat = sampleQueues[i].getUpstreamFormat();
|
||||
Format sampleFormat = sampleQueues.valueAt(i).getUpstreamFormat();
|
||||
if (i == primaryExtractorTrackIndex) {
|
||||
Format[] formats = new Format[chunkSourceTrackCount];
|
||||
for (int j = 0; j < chunkSourceTrackCount; j++) {
|
||||
@ -498,9 +546,10 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
// before for such tracks. For ID3 we probably explicitly don't want the keyframe before, even
|
||||
// if we do have it, since it might be quite a long way behind the seek position. We probably
|
||||
// only want to output ID3 buffers whose timestamps are greater than or equal to positionUs.
|
||||
for (int i = 0; seekInsideBuffer && i < sampleQueues.length; i++) {
|
||||
int sampleQueueCount = sampleQueues.size();
|
||||
for (int i = 0; seekInsideBuffer && i < sampleQueueCount; i++) {
|
||||
if (groupEnabledStates[i]) {
|
||||
seekInsideBuffer = sampleQueues[i].skipToKeyframeBefore(positionUs);
|
||||
seekInsideBuffer = sampleQueues.valueAt(i).skipToKeyframeBefore(positionUs);
|
||||
}
|
||||
}
|
||||
if (seekInsideBuffer) {
|
||||
@ -515,12 +564,12 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
}
|
||||
|
||||
private void discardSamplesForDisabledTracks() {
|
||||
if (!output.prepare()) {
|
||||
if (!prepared) {
|
||||
return;
|
||||
}
|
||||
for (int i = 0; i < groupEnabledStates.length; i++) {
|
||||
if (!groupEnabledStates[i]) {
|
||||
sampleQueues[i].skipAllSamples();
|
||||
sampleQueues.valueAt(i).skipAllSamples();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -537,7 +586,9 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
}
|
||||
|
||||
private void clearState() {
|
||||
output.clear();
|
||||
for (int i = 0; i < sampleQueues.size(); i++) {
|
||||
sampleQueues.valueAt(i).clear();
|
||||
}
|
||||
mediaChunks.clear();
|
||||
clearCurrentLoadable();
|
||||
}
|
||||
@ -577,7 +628,7 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
if (isMediaChunk(currentLoadable)) {
|
||||
pendingResetPositionUs = C.UNSET_TIME_US;
|
||||
HlsMediaChunk mediaChunk = (HlsMediaChunk) currentLoadable;
|
||||
mediaChunk.init(output);
|
||||
mediaChunk.init(this);
|
||||
mediaChunks.addLast(mediaChunk);
|
||||
eventDispatcher.loadStarted(mediaChunk.dataSpec.length, mediaChunk.type, mediaChunk.trigger,
|
||||
mediaChunk.format, mediaChunk.startTimeUs, mediaChunk.endTimeUs);
|
||||
@ -622,17 +673,17 @@ public final class HlsSampleSource implements Loader.Callback {
|
||||
|
||||
@Override
|
||||
public boolean isReady() {
|
||||
return HlsSampleSource.this.isReady(group);
|
||||
return HlsTrackStreamWrapper.this.isReady(group);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void maybeThrowError() throws IOException {
|
||||
HlsSampleSource.this.maybeThrowError();
|
||||
HlsTrackStreamWrapper.this.maybeThrowError();
|
||||
}
|
||||
|
||||
@Override
|
||||
public int readData(FormatHolder formatHolder, DecoderInputBuffer buffer) {
|
||||
return HlsSampleSource.this.readData(group, formatHolder, buffer);
|
||||
return HlsTrackStreamWrapper.this.readData(group, formatHolder, buffer);
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user