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Merge pull request #6502 from caiiiyua:bug_default_dash_chunk_source_wrong_segmentnumshift

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PiperOrigin-RevId: 273549830
This commit is contained in:
Oliver Woodman 2019-10-08 20:55:25 +01:00
commit 4026c8a01e
1 changed files with 10 additions and 2 deletions
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12
library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DefaultDashChunkSource.java
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@ -686,7 +686,9 @@ public class DefaultDashChunkSource implements DashChunkSource {
newPeriodDurationUs, newRepresentation, extractorWrapper, segmentNumShift, newIndex);
}
long oldIndexLastSegmentNum = oldIndex.getFirstSegmentNum() + oldIndexSegmentCount - 1;
long oldIndexFirstSegmentNum = oldIndex.getFirstSegmentNum();
long oldIndexStartTimeUs = oldIndex.getTimeUs(oldIndexFirstSegmentNum);
long oldIndexLastSegmentNum = oldIndexFirstSegmentNum + oldIndexSegmentCount - 1;
long oldIndexEndTimeUs =
oldIndex.getTimeUs(oldIndexLastSegmentNum)
+ oldIndex.getDurationUs(oldIndexLastSegmentNum, newPeriodDurationUs);
@ -700,8 +702,14 @@ public class DefaultDashChunkSource implements DashChunkSource {
// There's a gap between the old index and the new one which means we've slipped behind the
// live window and can't proceed.
throw new BehindLiveWindowException();
} else if (newIndexStartTimeUs < oldIndexStartTimeUs) {
// The new index overlaps with (but does not have a start position contained within) the old
// index. This can only happen if extra segments have been added to the start of the index.
newSegmentNumShift -=
newIndex.getSegmentNum(oldIndexStartTimeUs, newPeriodDurationUs)
- oldIndexFirstSegmentNum;
} else {
// The new index overlaps with the old one.
// The new index overlaps with (and has a start position contained within) the old index.
newSegmentNumShift +=
oldIndex.getSegmentNum(newIndexStartTimeUs, newPeriodDurationUs)
- newIndexFirstSegmentNum;