暂停播放，在调用之前请确保视频已经播放了，请查看{@link #isPlaying}

Runs the given Runnable on the OpenGL thread. @param runnable The runnable to be run on the OpenGL thread.

设置当前相机是否自动聚集，默认自动聚焦 内部实现会根据当前的模式是照相还是录像自动选择相机支持的最佳聚焦模式 @param autoFocus 是否聚焦

Sets the convolution kernel. @param convolutionKernel the new convolution kernel

@return {@code true} if {@link #mCameraParameters} was modified.

The amount of distortion to apply, from -1.0 to 1.0, with a default of 0.5 @param scale from -1.0 to 1.0, default 0.5

sp 2 px @param spVal @return

开始播放 @param request 播放的请求

添加app回调，camera的一些重要消息会回调，{@link ICameraCallback} @param cameraCallback callback

Latches the next buffer into the texture. Must be called from the thread that created the OutputSurface object, after the onFrameAvailable callback h

This rewrites {@link #mConfig} and {@link #mCameraInfo}. <p> TODO: 如果没有目标摄像头设备怎么办?