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Remove re-entrancy from HlsMediaChunk initialization

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HlsSampleStreamWrapper currently calls HlsMediaChunk.init, which calls back
to HlsSampleStraemWrapper.init. This re-entrancy seems a bit confusing.

PiperOrigin-RevId: 304139462
This commit is contained in:
olly 2020-04-01 09:54:24 +01:00 committed by Oliver Woodman
parent cd5ecd5c90
commit 6570d12c3c
2 changed files with 17 additions and 18 deletions
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6
library/hls/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaChunk.java
View File

@ -194,6 +194,9 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
/** The url of the playlist from which this chunk was obtained. */
public final Uri playlistUrl;
/** Whether the samples parsed from this chunk should be spliced into already queued samples. */
public final boolean shouldSpliceIn;
@Nullable private final DataSource initDataSource;
@Nullable private final DataSpec initDataSpec;
@Nullable private final Extractor previousExtractor;
@ -201,7 +204,6 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
private final boolean isMasterTimestampSource;
private final boolean hasGapTag;
private final TimestampAdjuster timestampAdjuster;
private final boolean shouldSpliceIn;
private final HlsExtractorFactory extractorFactory;
@Nullable private final List<Format> muxedCaptionFormats;
@Nullable private final DrmInitData drmInitData;
@ -282,7 +284,6 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
*/
public void init(HlsSampleStreamWrapper output) {
this.output = output;
output.init(uid, shouldSpliceIn);
}
@Override
@ -515,5 +516,4 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
}
return dataSource;
}
}

29
library/hls/src/main/java/com/google/android/exoplayer2/source/hls/HlsSampleStreamWrapper.java
View File

@ -164,7 +164,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
private boolean tracksEnded;
private long sampleOffsetUs;
@Nullable private DrmInitData drmInitData;
private int chunkUid;
private int sourceId;
/**
* @param trackType The type of the track. One of the {@link C} {@code TRACK_TYPE_*} constants.
@ -668,11 +668,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
}
if (isMediaChunk(loadable)) {
pendingResetPositionUs = C.TIME_UNSET;
HlsMediaChunk mediaChunk = (HlsMediaChunk) loadable;
mediaChunk.init(this);
mediaChunks.add(mediaChunk);
upstreamTrackFormat = mediaChunk.trackFormat;
initMediaChunkLoad((HlsMediaChunk) loadable);
}
long elapsedRealtimeMs =
loader.startLoading(
@ -819,18 +815,21 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
// Called by the consuming thread, but only when there is no loading thread.
/**
* Initializes the wrapper for loading a chunk.
* Performs initialization for a media chunk that's about to start loading.
*
* @param chunkUid The chunk's uid.
* @param shouldSpliceIn Whether the samples parsed from the chunk should be spliced into any
* samples already queued to the wrapper.
* @param mediaChunk The media chunk that's about to start loading.
*/
public void init(int chunkUid, boolean shouldSpliceIn) {
this.chunkUid = chunkUid;
private void initMediaChunkLoad(HlsMediaChunk mediaChunk) {
sourceId = mediaChunk.uid;
upstreamTrackFormat = mediaChunk.trackFormat;
pendingResetPositionUs = C.TIME_UNSET;
mediaChunks.add(mediaChunk);
mediaChunk.init(this);
for (SampleQueue sampleQueue : sampleQueues) {
sampleQueue.sourceId(chunkUid);
sampleQueue.sourceId(sourceId);
}
if (shouldSpliceIn) {
if (mediaChunk.shouldSpliceIn) {
for (SampleQueue sampleQueue : sampleQueues) {
sampleQueue.splice();
}
@ -914,7 +913,7 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
trackOutput.setDrmInitData(drmInitData);
}
trackOutput.setSampleOffsetUs(sampleOffsetUs);
trackOutput.sourceId(chunkUid);
trackOutput.sourceId(sourceId);
trackOutput.setUpstreamFormatChangeListener(this);
sampleQueueTrackIds = Arrays.copyOf(sampleQueueTrackIds, trackCount + 1);
sampleQueueTrackIds[trackCount] = id;