android-mediacodec

How to reduce latency in MediaCodec video/avc decoding

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I think you’re seeing some effects unique to the first frame. I repeated your experiment, with the further addition of forcing doRender = false around line 244 to avoid the sleep calls used to manage the output frame rate. I see: 01-29 14:05:36.552 9115 9224 I Grafika : queueInputBuffer index/pts, 2,0 01-29 14:05:36.562 9115 9224 … Read more

SurfaceTexture’s onFrameAvailable() method always called too late

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The way SurfaceTexture works makes this a bit tricky to get right. The docs say the frame-available callback “is called on an arbitrary thread”. The SurfaceTexture class has a bit of code that does the following when initializing (line 318): if (this thread has a looper) { handle events on this thread } else if … Read more

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