public void SetVideo()
{
var recorder = new Android.Media.MediaRecorder();
recorder.SetAudioSource(AudioSource.Mic);
recorder.SetVideoSource(VideoSource.Surface);
recorder.SetOutputFormat(OutputFormat.Mpeg4);
recorder.SetVideoEncodingBitRate(10000000);
recorder.SetVideoFrameRate(30);
recorder.SetVideoEncoder(VideoEncoder.H264);
recorder.SetAudioEncoder(AudioEncoder.Aac);
recorder.SetVideoSize(_previewSize.Width, _previewSize.Height);
SurfaceOrientation rotation = windowManager.DefaultDisplay.Rotation;
recorder.SetOrientationHint();
var pfd = new ParcelFileDescriptor(ParcelFileDescriptor.FromSocket(new Socket()));
recorder.SetOutputFile(pfd.FileDescriptor);
#region sample
/*mediaRecorder.SetAudioSource(AudioSource.Mic);
* mediaRecorder.SetVideoSource(VideoSource.Surface);
* mediaRecorder.SetOutputFormat(OutputFormat.Mpeg4);
* mediaRecorder.SetOutputFile(GetVideoFile(Activity).AbsolutePath);
* mediaRecorder.SetVideoEncodingBitRate(10000000);
* mediaRecorder.SetVideoFrameRate(30);
* mediaRecorder.SetVideoSize(videoSize.Width, videoSize.Height);
* mediaRecorder.SetVideoEncoder(VideoEncoder.H264);
* mediaRecorder.SetAudioEncoder(AudioEncoder.Aac);
* int rotation = (int)Activity.WindowManager.DefaultDisplay.Rotation;
* int orientation = ORIENTATIONS.Get(rotation);
* mediaRecorder.SetOrientationHint(orientation); //
* mediaRecorder.Prepare();*/
#endregion
}