New 2014/10/27: Successfully capture 30 screen per second in android 4.2-4.4, any size, clearly and almost 0% CPU usage!, but ffmpeg in android is too slow. I will try to optimize it or use native Media Encoder which is hardware assisted. New 2014/10/27: *****Found possibility to capture 30 screen per second in android 4.0-4.1*****