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Added in API level 23

public static interface MediaCodec.OnFrameRenderedListener

android.media.MediaCodec.OnFrameRenderedListener

在输出表面上渲染输出帧时调用侦听器

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Public methods
`abstract void`	`onFrameRendered(MediaCodec codec, long presentationTimeUs, long nanoTime)` 在输出表面上渲染输出帧时调用。

Added in API level 23

void onFrameRendered (MediaCodec codec, 
                long presentationTimeUs, 
                long nanoTime)

在输出表面上渲染输出帧时调用。

注意：此回调仅用于提供信息：获取精确的渲染时间采样，并且可以显着延迟和批处理。即使没有生成回调，某些帧可能已经被渲染。

Parameters
`codec`	`MediaCodec`: the MediaCodec instance
`presentationTimeUs`	`long`: the presentation time (media time) of the frame rendered. This is usually the same as specified in `queueInputBuffer(int, int, int, long, int)`; however, some codecs may alter the media time by applying some time-based transformation, such as frame rate conversion. In that case, presentation time corresponds to the actual output frame rendered.
`nanoTime`	`long`: The system time when the frame was rendered.

也可以看看：