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Use KEY_LOW_LATENCY to request low-latency decoding on Android R

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This commit is contained in:
Cameron Gutman
2020-02-19 23:40:06 -08:00
parent c91d1097f6
commit 112d9c41eb
2 changed files with 35 additions and 4 deletions
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app/src/main/java/com/limelight/binding/video/MediaCodecDecoderRenderer.java
+12 -2
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@@ -45,6 +45,7 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
private Thread rendererThread;
private boolean needsSpsBitstreamFixup, isExynos4;
private boolean adaptivePlayback, directSubmit;
private boolean lowLatency;
private boolean constrainedHighProfile;
private boolean refFrameInvalidationAvc, refFrameInvalidationHevc;
private boolean refFrameInvalidationActive;
@@ -161,7 +162,6 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
// shared between AVC and HEVC decoders on the same device.
if (avcDecoder != null) {
directSubmit = MediaCodecHelper.decoderCanDirectSubmit(avcDecoder.getName());
adaptivePlayback = MediaCodecHelper.decoderSupportsAdaptivePlayback(avcDecoder);
refFrameInvalidationAvc = MediaCodecHelper.decoderSupportsRefFrameInvalidationAvc(avcDecoder.getName(), prefs.height);
refFrameInvalidationHevc = MediaCodecHelper.decoderSupportsRefFrameInvalidationHevc(avcDecoder.getName());
@@ -264,6 +264,9 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
}
refFrameInvalidationActive = refFrameInvalidationAvc;
lowLatency = MediaCodecHelper.decoderSupportsLowLatency(avcDecoder, mimeType);
adaptivePlayback = MediaCodecHelper.decoderSupportsAdaptivePlayback(avcDecoder, mimeType);
}
else if ((videoFormat & MoonBridge.VIDEO_FORMAT_MASK_H265) != 0) {
mimeType = "video/hevc";
@@ -275,6 +278,9 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
}
refFrameInvalidationActive = refFrameInvalidationHevc;
lowLatency = MediaCodecHelper.decoderSupportsLowLatency(hevcDecoder, mimeType);
adaptivePlayback = MediaCodecHelper.decoderSupportsAdaptivePlayback(hevcDecoder, mimeType);
}
else {
// Unknown format
@@ -300,7 +306,10 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
videoFormat.setInteger(MediaFormat.KEY_MAX_HEIGHT, height);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (lowLatency) {
videoFormat.setInteger(MediaCodecHelper.KEY_LOW_LATENCY, 1);
}
else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
// Operate at maximum rate to lower latency as much as possible on
// some Qualcomm platforms. We could also set KEY_PRIORITY to 0 (realtime)
// but that will actually result in the decoder crashing if it can't satisfy
@@ -1031,6 +1040,7 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
str += "Consecutive crashes: "+renderer.consecutiveCrashCount+"\n";
str += "RFI active: "+renderer.refFrameInvalidationActive+"\n";
str += "Using modern SPS patching: "+(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)+"\n";
str += "Low latency mode: "+renderer.lowLatency+"\n";
str += "Video dimensions: "+renderer.initialWidth+"x"+renderer.initialHeight+"\n";
str += "FPS target: "+renderer.refreshRate+"\n";
str += "Bitrate: "+renderer.prefs.bitrate+" Kbps \n";