loliball/media
1
0
Fork 0
mirror of https://github.com/androidx/media.git synced 2025-04-30 06:46:50 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Simplify bufferTimestampAdjustment handling

Browse Source 
PiperOrigin-RevId: 696060496
This commit is contained in:
kimvde 2024-11-13 03:18:42 -08:00 committed by Copybara-Service
parent 8393c2e445
commit 9db66d6c6b
1 changed files with 19 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/video/PlaybackVideoGraphWrapper.java
View File

@ -468,9 +468,12 @@ public final class PlaybackVideoGraphWrapper implements VideoSinkProvider, Video
defaultVideoSink.setPlaybackSpeed(speed);
}
private void onStreamTimestampInfoChange(
long bufferTimestampAdjustmentUs, long bufferPresentationTimeUs, long streamStartPositionUs) {
private void setBufferTimestampAdjustment(long bufferTimestampAdjustmentUs) {
this.bufferTimestampAdjustmentUs = bufferTimestampAdjustmentUs;
}
private void onStreamStartPositionChange(
long bufferPresentationTimeUs, long streamStartPositionUs) {
videoFrameRenderControl.onStreamStartPositionChanged(
bufferPresentationTimeUs, streamStartPositionUs);
}
@ -496,7 +499,7 @@ public final class PlaybackVideoGraphWrapper implements VideoSinkProvider, Video
private long inputStreamStartPositionUs;
private long inputBufferTimestampAdjustmentUs;
private long lastResetPositionUs;
private boolean pendingInputStreamTimestampInfoChange;
private boolean pendingInputStartPositionChange;
/** The buffer presentation time, in microseconds, of the final frame in the stream. */
private long finalBufferPresentationTimeUs;
@ -660,11 +663,14 @@ public final class PlaybackVideoGraphWrapper implements VideoSinkProvider, Video
public void setStreamTimestampInfo(
long streamStartPositionUs, long bufferTimestampAdjustmentUs, long lastResetPositionUs) {
// Ors because this method could be called multiple times on a timestamp info change.
pendingInputStreamTimestampInfoChange |=
inputStreamStartPositionUs != streamStartPositionUs
|| inputBufferTimestampAdjustmentUs != bufferTimestampAdjustmentUs;
pendingInputStartPositionChange |= inputStreamStartPositionUs != streamStartPositionUs;
inputStreamStartPositionUs = streamStartPositionUs;
inputBufferTimestampAdjustmentUs = bufferTimestampAdjustmentUs;
// The buffer timestamp adjustment is only allowed to change after a flush to make sure that
// the buffer timestamps are increasing. We can update the buffer timestamp adjustment
// directly at the output of the VideoGraph because no frame has been input yet following the
// flush.
PlaybackVideoGraphWrapper.this.setBufferTimestampAdjustment(inputBufferTimestampAdjustmentUs);
this.lastResetPositionUs = lastResetPositionUs;
}
@ -761,7 +767,7 @@ public final class PlaybackVideoGraphWrapper implements VideoSinkProvider, Video
return false;
}
maybeSetStreamTimestampInfo(bufferPresentationTimeUs);
maybeSetStreamStartPosition(bufferPresentationTimeUs);
lastBufferPresentationTimeUs = bufferPresentationTimeUs;
if (isLastFrame) {
finalBufferPresentationTimeUs = bufferPresentationTimeUs;
@ -794,7 +800,7 @@ public final class PlaybackVideoGraphWrapper implements VideoSinkProvider, Video
long lastBufferPresentationTimeUs =
copyTimestampIterator.getLastTimestampUs() - inputBufferTimestampAdjustmentUs;
checkState(lastBufferPresentationTimeUs != C.TIME_UNSET);
maybeSetStreamTimestampInfo(bufferPresentationTimeUs);
maybeSetStreamStartPosition(bufferPresentationTimeUs);
this.lastBufferPresentationTimeUs = lastBufferPresentationTimeUs;
finalBufferPresentationTimeUs = lastBufferPresentationTimeUs;
return true;
@ -817,11 +823,11 @@ public final class PlaybackVideoGraphWrapper implements VideoSinkProvider, Video
// Other methods
private void maybeSetStreamTimestampInfo(long bufferPresentationTimeUs) {
if (pendingInputStreamTimestampInfoChange) {
PlaybackVideoGraphWrapper.this.onStreamTimestampInfoChange(
inputBufferTimestampAdjustmentUs, bufferPresentationTimeUs, inputStreamStartPositionUs);
pendingInputStreamTimestampInfoChange = false;
private void maybeSetStreamStartPosition(long bufferPresentationTimeUs) {
if (pendingInputStartPositionChange) {
PlaybackVideoGraphWrapper.this.onStreamStartPositionChange(
bufferPresentationTimeUs, inputStreamStartPositionUs);
pendingInputStartPositionChange = false;
}
}