如何设置Android Camera2预览画面的帧率(FPS)?

程序员文章站 2022-06-11 17:10:04

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声明变量全局存储相机的FPS范围

private static Range<Integer>[] fpsRanges;

在setUpCameraOutputs中获取相机的FPS范围

 // 该相机的FPS范围
  fpsRanges = characteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES);
  Log.d("FPS", "SYNC_MAX_LATENCY_PER_FRAME_CONTROL: " + Arrays.toString(fpsRanges));

在createCameraPreviewSession中设置预览画面的帧率

// 设置预览画面的帧率 视实际情况而定选择一个帧率范围
mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, fpsRanges[0]);

代码可参考Google官方Camera2的Demo
https://github.com/googlesamples/android-Camera2Basic