Video recording with media recorder

Question

I am writing code for Video Recording function with Media recorder., But it throws Io Exception,Illegal State Exception i searched many times in google but no proper explan

Answer 1

Here is the code for recording video...

recorder = new MediaRecorder();
        recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
        recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        recorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
        mPreview = new Preview(VideoRecorder.this,recorder);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        setContentView(mPreview);

recorder.start();

and here is the Preview Class....

class Preview extends SurfaceView implements SurfaceHolder.Callback
{
    SurfaceHolder mHolder;
    MediaRecorder tempRecorder;
    public Preview(Context context,MediaRecorder recorder) {
        super(context);
        tempRecorder=recorder;
        mHolder=getHolder();
        mHolder.addCallback(this);
        mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        // TODO Auto-generated constructor stub
    }

    public Surface getSurface()
    {
        return mHolder.getSurface();
    }

    public void surfaceCreated(SurfaceHolder holder){
        tempRecorder.setOutputFile("/sdcard/recordvideooutput.3gpp");
        tempRecorder.setPreviewDisplay(mHolder.getSurface());
        try{
            tempRecorder.prepare();
        } catch (Exception e) {
            String message = e.getMessage();
            tempRecorder.release();
            tempRecorder = null;
        }
    }

    public void surfaceDestroyed(SurfaceHolder holder) 
    {
        if(tempRecorder!=null)
        {
            tempRecorder.release();
            tempRecorder = null;
        }
    }

    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) 
    {

    }
}