android Camera2 录像 TextureView 异常困扰两天了求大佬指点

回忆与我都不爱说话 2018-04-16 05:25:12

异常
java.lang.IllegalStateException: failed to get surface
at android.media.MediaRecorder.getSurface(Native Method)

代码



/**

     * 开始视频录制。

     */

    private void startRecordingVideo() {

        isRecordingVideo = true;

        SurfaceTexture mSurfaceTexture = tv.getSurfaceTexture();

        //设置TextureView的缓冲区大小

        mSurfaceTexture.setDefaultBufferSize(previewSize.getWidth(), previewSize.getHeight());

        List<Surface> surfaces = new ArrayList<>();

        Surface previewSurface = new Surface(mSurfaceTexture);

        surfaces.add(previewSurface);

        //获取Surface显示预览数据

             setUpMediaRecorder();





        try {

            mCaptureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);

            // 设置自动对焦模式

            mCaptureRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);

            //设置Surface作为预览数据的显示界面

            mCaptureRequestBuilder.addTarget(previewSurface);

            Surface mSurface = mMediaRecorder.getSurface();-------这里崩溃

            surfaces.add(mSurface);

            mCaptureRequestBuilder.addTarget(mSurface);



            cameraDevice.createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {

                @Override

                public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {

                    mPreviewSession = cameraCaptureSession;

                     mCaptureRequest = mCaptureRequestBuilder.build();



                    try {

                        mPreviewSession.setRepeatingRequest(mCaptureRequest, null, childHandler);

                        mMediaRecorder.start();

                    } catch (CameraAccessException e) {

                        e.printStackTrace();

                    }

                }



                @Override

                public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {



                }

            }, childHandler);



        } catch (CameraAccessException e) {

            e.printStackTrace();

        }



    }



/**

     * 设置媒体录制器的配置参数

     * <p>

     * 音频，视频格式，文件路径，频率，编码格式等等

     *

     * @throws IOException

     */

    private void setUpMediaRecorder()   {



        mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

        mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);

        mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);

        String videoPath = Environment.getExternalStorageDirectory().getPath() + "/DCIM/Camera/";



        mMediaRecorder.setOutputFile(videoPath);

        //设置视频编码比特率

        mMediaRecorder.setVideoEncodingBitRate(10000000);

        //每秒30帧

        mMediaRecorder.setVideoFrameRate(30);

        mMediaRecorder.setVideoSize(previewSize.getWidth(), previewSize.getHeight());

        mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);

        mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);

        int rotation = getWindowManager().getDefaultDisplay().getRotation();

        if ("1".equals(mCameraId)) {

            rotation = 2;

        } else {

            rotation = 0;

        }

        mMediaRecorder.setOrientationHint(ORIENTATIONS.get(rotation));

        try {

            mMediaRecorder.prepare();

            printLog("录像准备");

        } catch (IOException e) {

            e.printStackTrace();

        }

    }