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Retry on spurious error

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MediaCodec may fail spuriously, typically when stopping an encoding and
starting a new one immediately (for example on device rotation).

In that case, retry a few times, in many cases it should work.

Refs #3693 <https://github.com/Genymobile/scrcpy/issues/3693>
This commit is contained in:
Romain Vimont 2023-01-29 14:48:07 +01:00
parent a52053421a
commit 07806ba915
1 changed files with 19 additions and 1 deletions
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20
server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java
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@ -9,6 +9,7 @@ import android.media.MediaCodecList;
import android.media.MediaFormat;
import android.os.Build;
import android.os.IBinder;
import android.os.SystemClock;
import android.view.Surface;
import java.io.FileDescriptor;
@ -27,6 +28,7 @@ public class ScreenEncoder implements Device.RotationListener {
// Keep the values in descending order
private static final int[] MAX_SIZE_FALLBACK = {2560, 1920, 1600, 1280, 1024, 800};
private static final int MAX_CONSECUTIVE_ERRORS = 3;
private static final long PACKET_FLAG_CONFIG = 1L << 63;
private static final long PACKET_FLAG_KEY_FRAME = 1L << 62;
@ -43,6 +45,7 @@ public class ScreenEncoder implements Device.RotationListener {
private long ptsOrigin;
private boolean firstFrameSent;
private int consecutiveErrors;
public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, List<CodecOption> codecOptions, String encoderName,
boolean downsizeOnError) {
@ -128,11 +131,25 @@ public class ScreenEncoder implements Device.RotationListener {
}
private boolean prepareRetry(Device device, ScreenInfo screenInfo) {
if (!downsizeOnError || firstFrameSent) {
if (firstFrameSent) {
++consecutiveErrors;
if (consecutiveErrors >= MAX_CONSECUTIVE_ERRORS) {
// Definitively fail
return false;
}
// Wait a bit to increase the probability that retrying will fix the problem
SystemClock.sleep(50);
return true;
}
if (!downsizeOnError) {
// Must fail immediately
return false;
}
// Downsizing on error is only enabled if an encoding failure occurs before the first frame (downsizing later could be surprising)
int newMaxSize = chooseMaxSizeFallback(screenInfo.getVideoSize());
Ln.i("newMaxSize = " + newMaxSize);
if (newMaxSize == 0) {
@ -181,6 +198,7 @@ public class ScreenEncoder implements Device.RotationListener {
if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) == 0) {
// If this is not a config packet, then it contains a frame
firstFrameSent = true;
consecutiveErrors = 0;
}
}
} finally {