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Create one HlsSampleStreamWrapper per track group

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-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=133243031
This commit is contained in:
aquilescanta 2016-09-15 03:56:08 -07:00 committed by Oliver Woodman
parent 6a099f1c57
commit 70351bfae2
2 changed files with 39 additions and 31 deletions
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61
library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java
View File

@ -239,13 +239,7 @@ import java.util.List;
eventDispatcher.loadCompleted(loadable.dataSpec, loadable.type, elapsedRealtimeMs,
loadDurationMs, loadable.bytesLoaded());
playlist = loadable.getResult();
List<HlsSampleStreamWrapper> sampleStreamWrapperList = buildSampleStreamWrappers();
sampleStreamWrappers = new HlsSampleStreamWrapper[sampleStreamWrapperList.size()];
sampleStreamWrapperList.toArray(sampleStreamWrappers);
pendingPrepareCount = sampleStreamWrappers.length;
for (HlsSampleStreamWrapper sampleStreamWrapper : sampleStreamWrappers) {
sampleStreamWrapper.prepare();
}
buildAndPrepareSampleStreamWrappers();
}
@Override
@ -313,16 +307,16 @@ import java.util.List;
// Internal methods.
private List<HlsSampleStreamWrapper> buildSampleStreamWrappers() {
ArrayList<HlsSampleStreamWrapper> sampleStreamWrappers = new ArrayList<>();
private void buildAndPrepareSampleStreamWrappers() {
String baseUri = playlist.baseUri;
if (playlist instanceof HlsMediaPlaylist) {
HlsMasterPlaylist.HlsUrl[] variants = new HlsMasterPlaylist.HlsUrl[] {
HlsMasterPlaylist.HlsUrl.createMediaPlaylistHlsUrl(playlist.baseUri)};
sampleStreamWrappers.add(buildSampleStreamWrapper(C.TRACK_TYPE_DEFAULT, baseUri, variants,
null, null));
return sampleStreamWrappers;
sampleStreamWrappers = new HlsSampleStreamWrapper[] {
buildSampleStreamWrapper(C.TRACK_TYPE_DEFAULT, baseUri, variants, null, null)};
pendingPrepareCount = 1;
sampleStreamWrappers[0].prepare();
return;
}
HlsMasterPlaylist masterPlaylist = (HlsMasterPlaylist) playlist;
@ -351,32 +345,37 @@ import java.util.List;
} else {
// Leave the enabled variants unchanged. They're likely either all video or all audio.
}
List<HlsMasterPlaylist.HlsUrl> audioVariants = masterPlaylist.audios;
List<HlsMasterPlaylist.HlsUrl> subtitleVariants = masterPlaylist.subtitles;
sampleStreamWrappers = new HlsSampleStreamWrapper[(selectedVariants.isEmpty() ? 0 : 1)
+ audioVariants.size() + subtitleVariants.size()];
int currentWrapperIndex = 0;
pendingPrepareCount = sampleStreamWrappers.length;
if (!selectedVariants.isEmpty()) {
HlsMasterPlaylist.HlsUrl[] variants = new HlsMasterPlaylist.HlsUrl[selectedVariants.size()];
selectedVariants.toArray(variants);
sampleStreamWrappers.add(buildSampleStreamWrapper(C.TRACK_TYPE_DEFAULT, baseUri, variants,
masterPlaylist.muxedAudioFormat, masterPlaylist.muxedCaptionFormat));
HlsSampleStreamWrapper sampleStreamWrapper = buildSampleStreamWrapper(C.TRACK_TYPE_DEFAULT,
baseUri, variants, masterPlaylist.muxedAudioFormat, masterPlaylist.muxedCaptionFormat);
sampleStreamWrapper.prepare();
sampleStreamWrappers[currentWrapperIndex++] = sampleStreamWrapper;
}
// Build the audio stream wrapper if applicable.
List<HlsMasterPlaylist.HlsUrl> audioVariants = masterPlaylist.audios;
if (!audioVariants.isEmpty()) {
HlsMasterPlaylist.HlsUrl[] variants = new HlsMasterPlaylist.HlsUrl[audioVariants.size()];
audioVariants.toArray(variants);
sampleStreamWrappers.add(buildSampleStreamWrapper(C.TRACK_TYPE_AUDIO, baseUri, variants, null,
null));
// Build audio stream wrappers.
for (int i = 0; i < audioVariants.size(); i++) {
HlsSampleStreamWrapper sampleStreamWrapper = buildSampleStreamWrapper(C.TRACK_TYPE_AUDIO,
baseUri, new HlsMasterPlaylist.HlsUrl[] {audioVariants.get(i)}, null, null);
sampleStreamWrapper.prepare();
sampleStreamWrappers[currentWrapperIndex++] = sampleStreamWrapper;
}
// Build the text stream wrapper if applicable.
List<HlsMasterPlaylist.HlsUrl> subtitleVariants = masterPlaylist.subtitles;
if (!subtitleVariants.isEmpty()) {
HlsMasterPlaylist.HlsUrl[] variants = new HlsMasterPlaylist.HlsUrl[subtitleVariants.size()];
subtitleVariants.toArray(variants);
sampleStreamWrappers.add(buildSampleStreamWrapper(C.TRACK_TYPE_TEXT, baseUri, variants, null,
null));
// Build subtitle stream wrappers.
for (int i = 0; i < subtitleVariants.size(); i++) {
HlsMasterPlaylist.HlsUrl url = subtitleVariants.get(i);
HlsSampleStreamWrapper sampleStreamWrapper = buildSampleStreamWrapper(C.TRACK_TYPE_TEXT,
baseUri, new HlsMasterPlaylist.HlsUrl[] {url}, null, null);
sampleStreamWrapper.prepareSingleTrack(url.format);
sampleStreamWrappers[currentWrapperIndex++] = sampleStreamWrapper;
}
return sampleStreamWrappers;
}
private HlsSampleStreamWrapper buildSampleStreamWrapper(int trackType, String baseUri,

9
library/src/main/java/com/google/android/exoplayer2/source/hls/HlsSampleStreamWrapper.java
View File

@ -137,6 +137,15 @@ import java.util.LinkedList;
continueLoading(lastSeekPositionUs);
}
/**
* Prepares a sample stream wrapper for which the master playlist provides enough information to
* prepare.
*/
public void prepareSingleTrack(Format format) {
track(0).format(format);
endTracks();
}
public void maybeThrowPrepareError() throws IOException {
maybeThrowError();
}