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More performance optimizations by submitting a batch of decode units to get them to the hardware decoder ASAP

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This commit is contained in:
Cameron Gutman 2014-10-10 17:51:39 -07:00
parent 8403101d0f
commit 0c4a049a80
1 changed files with 26 additions and 11 deletions
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37
src/com/limelight/binding/video/MediaCodecDecoderRenderer.java
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@ -319,6 +319,25 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
int inputIndex = -1; int inputIndex = -1;
while (!isInterrupted()) while (!isInterrupted())
{ {
// In order to get as much data to the decoder as early as possible,
// try to submit up to 5 decode units at once without blocking.
if (inputIndex == -1 && du == null) {
for (int i = 0; i < 5; i++) {
inputIndex = videoDecoder.dequeueInputBuffer(0);
du = depacketizer.pollNextDecodeUnit();
// Stop if we can't get a DU or input buffer
if (du == null || inputIndex == -1) {
break;
}
submitDecodeUnit(du, inputIndex);
du = null;
inputIndex = -1;
}
}
// Grab an input buffer if we don't have one already. // Grab an input buffer if we don't have one already.
// This way we can have one ready hopefully by the time // This way we can have one ready hopefully by the time
// the depacketizer is done with this frame. It's important // the depacketizer is done with this frame. It's important
@ -344,14 +363,7 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
// If we've got both a decode unit and an input buffer, we'll // If we've got both a decode unit and an input buffer, we'll
// submit now. Otherwise, we wait until we have one. // submit now. Otherwise, we wait until we have one.
if (du != null && inputIndex >= 0) { if (du != null && inputIndex >= 0) {
if (!submitDecodeUnit(du, inputIndex)) { submitDecodeUnit(du, inputIndex);
// Thread was interrupted
depacketizer.freeDecodeUnit(du);
return;
}
else {
depacketizer.freeDecodeUnit(du);
}
// DU and input buffer have both been consumed // DU and input buffer have both been consumed
du = null; du = null;
@ -445,7 +457,7 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
} }
} }
private boolean submitDecodeUnit(DecodeUnit decodeUnit, int inputBufferIndex) { private void submitDecodeUnit(DecodeUnit decodeUnit, int inputBufferIndex) {
ByteBuffer buf = videoDecoderInputBuffers[inputBufferIndex]; ByteBuffer buf = videoDecoderInputBuffers[inputBufferIndex];
long currentTime = System.currentTimeMillis(); long currentTime = System.currentTimeMillis();
@ -515,7 +527,9 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
} catch (Exception e) { } catch (Exception e) {
throw new RendererException(this, e, buf, codecFlags); throw new RendererException(this, e, buf, codecFlags);
} }
return true;
depacketizer.freeDecodeUnit(decodeUnit);
return;
} }
} else if (header.data[header.offset+4] == 0x68) { } else if (header.data[header.offset+4] == 0x68) {
numPpsIn++; numPpsIn++;
@ -536,7 +550,8 @@ public class MediaCodecDecoderRenderer implements VideoDecoderRenderer {
throw new RendererException(this, e, buf, codecFlags); throw new RendererException(this, e, buf, codecFlags);
} }
return true; depacketizer.freeDecodeUnit(decodeUnit);
return;
} }
@Override @Override