Android Camera2视频播放视频和音频不同步

我在使用 android 相机 2 api 时遇到了问题。我可以录制视频，但在播放过程中，仅播放音频。视频播放完毕后，时间会提前 10 分钟到 2 小时，然后播放视频。我从来没有听说过这样的问题。我几乎关注了this https://github.com/googlesamples/android-Camera2Video。这是设置我的媒体记录器的代码：

    mMediaRecorder = new MediaRecorder();
    // Step 2: Set sources
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
    mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
    //limit the video duration
    mMediaRecorder.setMaxDuration(90000);    //90s
    // Step 3: Set a CamcorderProfile (requires API Level 8 or higher)
    mMediaFile = getOutputMediaFile();
    mMediaRecorder.setOutputFile(mMediaFile.toString());
    mMediaRecorder.setVideoEncodingBitRate(1000000);
    mMediaRecorder.setVideoFrameRate(30);
    mMediaRecorder.setVideoSize(mVideoSize.getWidth(),mVideoSize.getHeight());
    mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
    mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
    //since video is portrait, rotation is 90
    if(!isFrontFacing) {
        mMediaRecorder.setOrientationHint(270);
    } else{
        mMediaRecorder.setOrientationHint(90);
    }
    mMediaRecorder.prepare();

这是开始录制的代码：

try {
                            closePreviewSession();
                            prepareVideoRecorder();
                            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);
                            // Set up Surface for the MediaRecorder
                            mRecorderSurface = mMediaRecorder.getSurface();
                            surfaces.add(mRecorderSurface);
                            mPreviewBuilder.addTarget(mRecorderSurface);
                            // Start a capture session
                            // Once the session starts, we can update the UI and start recording
                            mCameraDevice.createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {

                            @Override
                            public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                                mPreviewSession = cameraCaptureSession;
                                updatePreview();
                                getActivity().runOnUiThread(new Runnable() {
                                    @Override
                                    public void run() {
                                        // UI
                                        isRecording = true;

                                        // Start recording
                                        mMediaRecorder.start();
                                    }
                                });
                            }

                            @Override
                            public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
                                Activity activity = getActivity();
                                if (null != activity) {
                                    Toast.makeText(activity, "Failed", Toast.LENGTH_SHORT).show();
                                    }
                                }
                            }, mBackgroundHandler);
                        } catch (RuntimeException e) {
                                Toast.makeText(getContext(), "You're resolution isn't supported.", Toast
                                        .LENGTH_SHORT).show();
                            getActivity().finish();
                        }
                        catch (CameraAccessException e) {
                            getActivity().finish();
                        }