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Libvpx: configure a way in Medialib to drop frames instead of video lag.

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-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=153858804
This commit is contained in:
tasnimsunny 2017-04-21 12:42:07 -07:00 committed by Oliver Woodman
parent 860eb26301
commit e1c82fbb1a
1 changed files with 24 additions and 5 deletions
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29
extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/LibvpxVideoRenderer.java
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@ -262,11 +262,11 @@ public final class LibvpxVideoRenderer extends BaseRenderer {
return false; return false;
} }
// Drop the frame if we're joining and are more than 30ms late, or if we have the next frame final long nextOutputBufferTimeUs =
// and that's also late. Else we'll render what we have. nextOutputBuffer != null && !nextOutputBuffer.isEndOfStream()
if ((joiningDeadlineMs != C.TIME_UNSET && outputBuffer.timeUs < positionUs - 30000) ? nextOutputBuffer.timeUs : C.TIME_UNSET;
|| (nextOutputBuffer != null && !nextOutputBuffer.isEndOfStream() if (shouldDropOutputBuffer(
&& nextOutputBuffer.timeUs < positionUs)) { outputBuffer.timeUs, nextOutputBufferTimeUs, positionUs, joiningDeadlineMs)) {
dropBuffer(); dropBuffer();
return true; return true;
} }
@ -280,6 +280,25 @@ public final class LibvpxVideoRenderer extends BaseRenderer {
return false; return false;
} }
/**
* Returns whether the current frame should be dropped.
*
* @param outputBufferTimeUs The timestamp of the current output buffer.
* @param nextOutputBufferTimeUs The timestamp of the next output buffer or
* {@link TIME_UNSET} if the next output buffer is unavailable.
* @param positionUs The current playback position.
* @param joiningDeadlineMs The joining deadline.
* @return Returns whether to drop the current output buffer.
*/
protected boolean shouldDropOutputBuffer(long outputBufferTimeUs, long nextOutputBufferTimeUs,
long positionUs, long joiningDeadlineMs) {
// Drop the frame if we're joining and are more than 30ms late, or if we have the next frame
// and that's also late. Else we'll render what we have.
return (joiningDeadlineMs != C.TIME_UNSET && outputBufferTimeUs < positionUs - 30000)
|| (nextOutputBufferTimeUs != C.TIME_UNSET && nextOutputBufferTimeUs < positionUs);
}
private void renderBuffer() { private void renderBuffer() {
int bufferMode = outputBuffer.mode; int bufferMode = outputBuffer.mode;
boolean renderRgb = bufferMode == VpxDecoder.OUTPUT_MODE_RGB && surface != null; boolean renderRgb = bufferMode == VpxDecoder.OUTPUT_MODE_RGB && surface != null;