How could I do face detect during recording video mode
<p>I want to do some image processing work like face detection or something 
during the camera is  under recording video mode .</p>

<p>now I can recording video and save file and transfer it to my server.
but if I want to detect human face during recording,(I don't need any algorithm , I'll take it)
how can I do this? use what kind of library ?
I think I should use some method to get each frame of the recording video. but how ?</p>

<p>now, I use  "MediaRecorder" to capture the video .
SurfaceView , SurfaceHolder  : to show the preview screen</p>

<p>is anyone can give me some suggestions ? 
thank you very much in advance ^^</p>
