mrec = new MediaRecorder();
    mCamera.unlock();

    mrec.setCamera(mCamera);

    mrec.setPreviewDisplay(surfaceHolder.getSurface());
    mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mrec.setAudioSource(MediaRecorder.AudioSource.MIC);

    CamcorderProfile targetProfile =          CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);

    targetProfile.videoCodec = MediaRecorder.VideoEncoder.H263;
    targetProfile.audioCodec = MediaRecorder.AudioEncoder.AMR_NB;
    targetProfile.fileFormat = MediaRecorder.OutputFormat.THREE_GPP;
    mrec.setProfile(targetProfile);
    //mrec.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
    mrec.setPreviewDisplay(surfaceHolder.getSurface());

   Socket socket = new Socket("192.168.1.20",4444);

   ParcelFileDescriptor pfd = ParcelFileDescriptor.fromSocket(socket);

    mrec.setOutputFile(pfd.getFileDescriptor());
  // mrec.setOutputFile("/sdcard/dad.3gpp");

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