moonlight-stream/moonlight-android
1
0
Fork 0
mirror of https://github.com/moonlight-stream/moonlight-android.git synced 2025-07-24 21:42:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

Prevent microstutter in balanced mode when streaming at 60 FPS on a 120 Hz display

Browse Source
This commit is contained in:
Cameron Gutman 2022-05-14 20:08:41 -05:00
parent 6f8e719200
commit 226e580a30
1 changed files with 22 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
app/src/main/java/com/limelight/binding/video/MediaCodecDecoderRenderer.java
View File

@ -86,6 +86,7 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer implements C
private LinkedBlockingQueue<Integer> outputBufferQueue = new LinkedBlockingQueue<>();
private static final int OUTPUT_BUFFER_QUEUE_LIMIT = 2;
private long lastRenderedFrameTimeNanos;
private int numSpsIn;
private int numPpsIn;
@ -419,21 +420,28 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer implements C
return;
}
// Render up to one frame when in frame pacing mode.
//
// NB: Since the queue limit is 2, we won't starve the decoder of output buffers
// by holding onto them for too long. This also ensures we will have that 1 extra
// frame of buffer to smooth over network/rendering jitter.
Integer nextOutputBuffer = outputBufferQueue.poll();
if (nextOutputBuffer != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
videoDecoder.releaseOutputBuffer(nextOutputBuffer, frameTimeNanos);
}
else {
videoDecoder.releaseOutputBuffer(nextOutputBuffer, true);
}
// Don't render unless a new frame is due. This prevents microstutter when streaming
// at a frame rate that doesn't match the display (such as 60 FPS on 120 Hz).
long actualFrameTimeDeltaNs = frameTimeNanos - lastRenderedFrameTimeNanos;
long expectedFrameTimeDeltaNs = 800000000 / refreshRate; // within 80% of the next frame
if (actualFrameTimeDeltaNs >= expectedFrameTimeDeltaNs) {
// Render up to one frame when in frame pacing mode.
//
// NB: Since the queue limit is 2, we won't starve the decoder of output buffers
// by holding onto them for too long. This also ensures we will have that 1 extra
// frame of buffer to smooth over network/rendering jitter.
Integer nextOutputBuffer = outputBufferQueue.poll();
if (nextOutputBuffer != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
videoDecoder.releaseOutputBuffer(nextOutputBuffer, frameTimeNanos);
}
else {
videoDecoder.releaseOutputBuffer(nextOutputBuffer, true);
}
activeWindowVideoStats.totalFramesRendered++;
lastRenderedFrameTimeNanos = frameTimeNanos;
activeWindowVideoStats.totalFramesRendered++;
}
}
// Request another callback for next frame