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Make DefaultDashChunkSource more robust against empty segment timelines

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Segment timelines are technically allowed to be empty, but not all places
add the necessary checks.

Issue: google/ExoPlayer#11014
PiperOrigin-RevId: 514722205
This commit is contained in:
tonihei 2023-03-07 15:05:20 +00:00 committed by Rohit Singh
parent f07e6b63ea
commit 788132b9dc
2 changed files with 8 additions and 2 deletions
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3
RELEASENOTES.md
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@ -23,6 +23,9 @@
instead.
* Remove `Transformer.startTransformation(MediaItem,
ParcelFileDescriptor)`.
* DASH:
* Fix handling of empty segment timelines
([#11014](https://github.com/google/ExoPlayer/issues/11014)).
* Remove deprecated symbols:
* Remove `DefaultAudioSink` constructors, use `DefaultAudioSink.Builder`
instead.

7
libraries/exoplayer_dash/src/main/java/androidx/media3/exoplayer/dash/DefaultDashChunkSource.java
View File

@ -236,9 +236,12 @@ public class DefaultDashChunkSource implements DashChunkSource {
// Segments are aligned across representations, so any segment index will do.
for (RepresentationHolder representationHolder : representationHolders) {
if (representationHolder.segmentIndex != null) {
long segmentCount = representationHolder.getSegmentCount();
if (segmentCount == 0) {
continue;
}
long segmentNum = representationHolder.getSegmentNum(positionUs);
long firstSyncUs = representationHolder.getSegmentStartTimeUs(segmentNum);
long segmentCount = representationHolder.getSegmentCount();
long secondSyncUs =
firstSyncUs < positionUs
&& (segmentCount == DashSegmentIndex.INDEX_UNBOUNDED
@ -594,7 +597,7 @@ public class DefaultDashChunkSource implements DashChunkSource {
}
private long getAvailableLiveDurationUs(long nowUnixTimeUs, long playbackPositionUs) {
if (!manifest.dynamic) {
if (!manifest.dynamic || representationHolders[0].getSegmentCount() == 0) {
return C.TIME_UNSET;
}
long lastSegmentNum = representationHolders[0].getLastAvailableSegmentNum(nowUnixTimeUs);