Question

您好我正在尝试在Android中的硬件相机控件，我能够在表面视图上预览相机，但是我无法录制任何视频，因为在开始视频录制时我收到以下错误：

媒体服务器死了

相机服务器已经死亡

ICamera去世了

错误100

捕获代码如下

    public void onCaptureClick(View view){
        if(!isRecording)
            new MediaPrepareTask().execute(null,null,null);
        else{
            mMediaRecorder.stop();
            releaseMediaRecorder();
            mCamera.lock();
            setCaptureButtonText("Start");
            isRecording = false ;
            releaseCamera();
        }

    }

这是媒体准备任务

class MediaPrepareTask extends AsyncTask<Void, Void, Boolean>{

    @Override
    protected Boolean doInBackground(Void... arg0) {
         if (prepareVideoRecorder()) {
             // Camera is available and unlocked, MediaRecorder is prepared,
             // now you can start recording
             mMediaRecorder.start();
             Log.i(TAG,"Media recording started");
             isRecording = true;
         } else {
             // prepare didn't work, release the camera
             releaseMediaRecorder();
             return false;
         }
         return true;
    }

    @Override
    protected void onPostExecute(Boolean result){
        if(!result){
            MainActivity.this.finish();
        }
        setCaptureButtonText("Stop");
    }

}

这是我设置录制属性的地方

private boolean prepareVideoRecorder(){
        Log.i(TAG,"Starting to prepare");
        Camera.Parameters parameters = mCamera.getParameters() ;
        Log.i(TAG,"Got Property");
        List<Camera.Size> mSupportedPreviewSize = parameters.getSupportedPreviewSizes();
        Camera.Size optimalSize = CameraHelper.getOptimalPreviewSize(mSupportedPreviewSize,
                mPreview.getWidth(), mPreview.getHeight());
        CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_LOW);
        profile.videoFrameWidth = optimalSize.width ;
        profile.videoFrameHeight = optimalSize.height ;

        parameters.setPreviewSize(profile.videoFrameWidth, profile.videoFrameHeight);
        mCamera.setParameters(parameters);
        Log.i(TAG,"Set Parameters");
        try{
//      //  mCamera.setPreviewTexture(mPreview.getSurfaceTexture());

        mCamera.setPreviewDisplay(mPreview.getHolder());
        }catch(IOException iOEx){
            iOEx.printStackTrace();
            Log.e(TAG, "Failed to set preview display ");
            return false ;
        }
        ////////////////////////////////now for the media recorder ///////////////////////
        mMediaRecorder = new MediaRecorder();
        mCamera.unlock();
        mMediaRecorder.setCamera(mCamera);
        Log.i(TAG,"Set camera for recorder");
        mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
        mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
        mMediaRecorder.setProfile(profile);
        Log.i(TAG,CameraHelper.getOutputMediaFile(CameraHelper.MEDIA_TYPE_VIDEO).toString());
         mMediaRecorder.setOutputFile(CameraHelper.getOutputMediaFile(
                    CameraHelper.MEDIA_TYPE_VIDEO).toString());
            // END_INCLUDE (configure_media_recorder)

            // Step 5: Prepare configured MediaRecorder

            Log.i(TAG,"Set the ouptut format");
            try {

                mMediaRecorder.prepare();
            } catch (IllegalStateException e) {
                Log.d(TAG, "IllegalStateException preparing MediaRecorder: " + e.getMessage());
                releaseMediaRecorder();
                return false;
            } catch (IOException e) {
                Log.d(TAG, "IOException preparing MediaRecorder: " + e.getMessage());
                releaseMediaRecorder();
                return false;
            }
            Log.i(TAG,"All is well");
            return true;

    }

Answer 1

这适用于任何阅读该问题的人

问题在于表面也要添加到媒体记录器中，

只需将表面添加到介质记录器即可正常工作

android摄像头硬件控制失败

1 个答案: