Android : How to compress video in android

How can I compress a video in android. After searching a lot I found a library called ffmpeg. But it will work only in NKD and it is a commercial version. I found another solution that is mp4Parcer. But this too not working. Is there any Native library for android to Compress Video. After searching a lot I found a class called MediaCodec in android. But I don't know how to compress video in it.

I hope anybody will answer my question

Thanks.