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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 d83b4a358f
commit 0113174788
1 changed files with 5 additions and 2 deletions
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7
library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DefaultDashChunkSource.java
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@ -234,9 +234,12 @@ public class DefaultDashChunkSource implements DashChunkSource {
// Segments are aligned across representations, so any segment index will do. // Segments are aligned across representations, so any segment index will do.
for (RepresentationHolder representationHolder : representationHolders) { for (RepresentationHolder representationHolder : representationHolders) {
if (representationHolder.segmentIndex != null) { if (representationHolder.segmentIndex != null) {
long segmentCount = representationHolder.getSegmentCount();
if (segmentCount == 0) {
continue;
}
long segmentNum = representationHolder.getSegmentNum(positionUs); long segmentNum = representationHolder.getSegmentNum(positionUs);
long firstSyncUs = representationHolder.getSegmentStartTimeUs(segmentNum); long firstSyncUs = representationHolder.getSegmentStartTimeUs(segmentNum);
long segmentCount = representationHolder.getSegmentCount();
long secondSyncUs = long secondSyncUs =
firstSyncUs < positionUs firstSyncUs < positionUs
&& (segmentCount == DashSegmentIndex.INDEX_UNBOUNDED && (segmentCount == DashSegmentIndex.INDEX_UNBOUNDED
@ -592,7 +595,7 @@ public class DefaultDashChunkSource implements DashChunkSource {
} }
private long getAvailableLiveDurationUs(long nowUnixTimeUs, long playbackPositionUs) { private long getAvailableLiveDurationUs(long nowUnixTimeUs, long playbackPositionUs) {
if (!manifest.dynamic) { if (!manifest.dynamic || representationHolders[0].getSegmentCount() == 0) {
return C.TIME_UNSET; return C.TIME_UNSET;
} }
long lastSegmentNum = representationHolders[0].getLastAvailableSegmentNum(nowUnixTimeUs); long lastSegmentNum = representationHolders[0].getLastAvailableSegmentNum(nowUnixTimeUs);