Android Marshmallow High Speed ​​Capture Request

Question

I'm having trouble setting up a capture request for high speed video. I intend to capture at 120 FPS on the Nexus 6P. I set the minimum API to 23, since I do not plan to deploy this application on any other phone.

Where I do not quite understand how to make my capture request work. Now I am doing my best to change the code in the Camera2Video sample in Google samples. Link to sample from Google

Here is all the relevant code:

private void startPreview() {
    if (null == mCameraDevice || !mTextureView.isAvailable() || null == mPreviewSize) {
        return;
    }
    try {
        setUpMediaRecorder();
        SurfaceTexture texture = mTextureView.getSurfaceTexture();
        assert texture != null;
        texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
        mPreviewBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
        List<Surface> surfaces = new ArrayList<Surface>();

        Surface previewSurface = new Surface(texture);
        surfaces.add(previewSurface);
        mPreviewBuilder.addTarget(previewSurface);

        Surface recorderSurface = mMediaRecorder.getSurface();
        surfaces.add(recorderSurface);
        mPreviewBuilder.addTarget(recorderSurface);

        mCameraDevice.createConstrainedHighSpeedCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {
        //mCameraDevice.createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {

            @Override
            public void onConfigured(CameraCaptureSession cameraCaptureSession) {
                //mPreviewSession = cameraCaptureSession;
                mPreviewSession2 = cameraCaptureSession;
                updatePreview();
            }

            @Override
            public void onConfigureFailed(CameraCaptureSession cameraCaptureSession) {
                Activity activity = getActivity();
                if (null != activity) {
                    Toast.makeText(activity, "Failed", Toast.LENGTH_SHORT).show();
                }
            }
        }, mBackgroundHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}


/**
 * Update the camera preview. {@link #startPreview()} needs to be called in advance.
 */
private void updatePreview() {
    if (null == mCameraDevice) {
        return;
    }
    try {
        setUpCaptureRequestBuilder(mPreviewBuilder);
        HandlerThread thread = new HandlerThread("CameraPreview");
        thread.start();
        mPreviewBuilder2 =  mPreviewSession2.createHighSpeedRequestList(mPreviewBuilder.build());
        //mPreviewBuilder2 =


        //mPreviewSession.setRepeatingRequest(mPreviewBuilder.build(), null, mBackgroundHandler);
        mPreviewSession.setRepeatingBurst(mPreviewBuilder2, null, mBackgroundHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch(Exception e){
        e.printStackTrace();
    }
}

private void setUpCaptureRequestBuilder(CaptureRequest.Builder builder) {
    builder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);
    Range<Integer> fpsRange = Range.create(120, 120);
    builder.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, fpsRange);

}

updatepreview. , , setRepeatingBurst . , setRepeatingRequest. setRepeatingBurst , CONTROL_MODE TARGET_FPS_RANGE.

/**
 * Camera preview.
 */
private CaptureRequest.Builder mPreviewBuilder;
List<CaptureRequest> mPreviewBuilder2;

/**
 * A reference to the current {@link android.hardware.camera2.CameraCaptureSession} for
 * preview.
 */
private CameraCaptureSession mPreviewSession;
private CameraConstrainedHighSpeedCaptureSession mPreviewSession2;

, , . , , StackOverflow, - . , , createConstrainedHighSpeedCaptureSession CameraConstrainedHighSpeedCaptureSession. createHighSpeedRequestList.

Answer 1

, .

, ,

mPreviewSession2.setRepeatingBurst(mPreviewBuilder2, null, mBackgroundHandler);

mPreviewSession.setRepeatingBurst(mPreviewBuilder2, null, mBackgroundHandler);

RepeatingBurst CameraConstrainedHighSpeedCaptureSession

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github, , , camera2 api.

https://github.com/thesleort/Android-Slow-Motion-Camera2.git