Android相机服务器死于相机错误-100 [英] Android Camera Server Died and Camera Error - 100

问题描述

在测试我的android应用程序时，我遇到了相机错误100，我在StackOverflow上找到了一些主题，但它们并没有那么大的帮助.我正在寻找相关的解决方案来纠正错误.

I'm facing Camera error 100 while testing my android application, I have found some topics on StackOverflow but they were not so helpful. I'm searching for a relevant solution to fix the error.

我编写的代码:

mrec = new MediaRecorder();  // Works well

mCamera = Camera.open();
mCamera.unlock();

mrec.setCamera(mCamera);
mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mrec.setAudioSource(MediaRecorder.AudioSource.MIC); 

mrec.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));

mrec.setOutputFile("/sdcard/zzzz.3gp");

mrec.prepare();
mrec.start(); 

记录摄像机的代码:

protected void startRecordingVideo() throws IOException 
{
camera = Camera.open();
camera.unlock();
SimpleDateFormat timeStampFormat = new SimpleDateFormat(
        "yyyy-MM-dd-HH.mm.ss");
String fileName = "video_" + timeStampFormat.format(new Date())
        + ".3gp";
String fileURL = "/sdcard/"+fileName;
surfaceView = (SurfaceView) findViewById(R.id.surface_camera);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mrec = new MediaRecorder();

mrec.setCamera(camera);

mrec.setPreviewDisplay(surfaceHolder.getSurface());
mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mrec.setAudioSource(MediaRecorder.AudioSource.MIC); 
    mrec.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_LOW));
    mrec.setPreviewDisplay(surfaceHolder.getSurface());
    mrec.setOutputFile("/sdcard/"+fileName); 

    mrec.prepare();
    mrec.start();
}

protected void stopRecordingVideo() {
mrec.stop();
mrec.release();
camera.release();
}

private void releaseMediaRecorder(){
if (mrec != null) {
    mrec.reset();   // clear recorder configuration
    mrec.release(); // release the recorder object
    mrec = null;
    camera.lock();           
  }
}

private void releaseCamera(){
if (camera != null){
    camera.release();        
    camera = null;
}
}

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
    int height) {
// TODO Auto-generated method stub
}


@Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub

if (camera != null){
    Parameters params = camera.getParameters();
    camera.setParameters(params);
}
else {
    Toast.makeText(getApplicationContext(), "Camera not available!", Toast.LENGTH_LONG).show();
    finish();
}
}


@Override
public void surfaceDestroyed(SurfaceHolder holder) {
releaseMediaRecorder();
camera.stopPreview();
camera.release();


}

这是Logcat的输出:

Here are the Logcat output :

12-27 17:52:02.788: W/IMediaDeathNotifier(21434): media server died!
12-27 17:52:02.788: W/Camera(21434): Camera server died!
12-27 17:52:02.788: W/Camera(21434): ICamera died
12-27 17:52:03.048: E/Camera(21434): Error 100  

推荐答案

您需要将预览显示设置为刻录机.

You need to set the preview display to the recorder.

mrec.setPreviewDisplay(SurfaceHolder.getSurface());

预览显示中的视频数据充当录像机的输入.另外，您还需要确保录制的视频分辨率和预览分辨率相同.

The video data in the preview display acts as the input to the video recorder. Also you need to ensure that the video resolution for the recording and the preview resolution are the same.

这篇关于Android相机服务器死于相机错误-100的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！