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Change adjustLastSampleDuration() to getLastSampleDurationVu()

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This is a no-op change.

PiperOrigin-RevId: 669283958
This commit is contained in:
sheenachhabra 2024-08-30 04:52:42 -07:00 committed by Copybara-Service
parent dc9854cc5b
commit 613c7a6aa7
1 changed files with 17 additions and 21 deletions
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38
libraries/muxer/src/main/java/androidx/media3/muxer/Boxes.java
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@ -828,10 +828,9 @@ import org.checkerframework.checker.nullness.qual.PolyNull;
durationsVu.add((int) currentSampleDurationVu);
currentSampleTimeUs = nextSampleTimeUs;
}
// Default duration for the last sample.
durationsVu.add(0);
adjustLastSampleDuration(durationsVu, lastSampleDurationBehavior);
durationsVu.add(getLastSampleDurationVu(durationsVu, lastSampleDurationBehavior));
return durationsVu;
}
@ -1235,29 +1234,26 @@ import org.checkerframework.checker.nullness.qual.PolyNull;
return timestampVu * 1_000_000L / videoUnitTimebase;
}
// TODO: b/317117431 - Change this method to getLastSampleDuration().
/** Adjusts the duration of the very last sample if needed. */
private static void adjustLastSampleDuration(
List<Integer> durationsToBeAdjustedVu, @Mp4Muxer.LastSampleDurationBehavior int behavior) {
// For a track having less than 3 samples, duplicating the last frame duration will
// significantly increase the overall track duration, so avoid that.
if (durationsToBeAdjustedVu.size() <= 2) {
return;
}
switch (behavior) {
/**
* Returns the duration of the last sample (in video units) based on previous sample durations and
* the {@code lastSampleDurationBehavior}.
*/
private static int getLastSampleDurationVu(
List<Integer> sampleDurationsExceptLast,
@Mp4Muxer.LastSampleDurationBehavior int lastSampleDurationBehavior) {
switch (lastSampleDurationBehavior) {
case Mp4Muxer.LAST_SAMPLE_DURATION_BEHAVIOR_DUPLICATE_PREV_DURATION:
durationsToBeAdjustedVu.set(
durationsToBeAdjustedVu.size() - 1,
durationsToBeAdjustedVu.get(durationsToBeAdjustedVu.size() - 2));
break;
// For a track having less than 3 samples, duplicating the last frame duration will
// significantly increase the overall track duration, so avoid that.
return sampleDurationsExceptLast.size() < 2
? 0
: Iterables.getLast(sampleDurationsExceptLast);
case Mp4Muxer.LAST_SAMPLE_DURATION_BEHAVIOR_INSERT_SHORT_SAMPLE:
// Keep the last sample duration as short as possible.
checkState(Iterables.getLast(durationsToBeAdjustedVu) == 0L);
break;
return 0;
default:
throw new IllegalArgumentException(
"Unexpected value for the last frame duration behavior " + behavior);
"Unexpected value for the last frame duration behavior " + lastSampleDurationBehavior);
}
}