Requesting a simple example of how to mix dedicated audio and video in Android using Mediamuxer

I would like to write a simple android app for audio file multiplexer with video track from video file.

Mediamuxer looks like a good solution, and there are some promising examples posted on googlesource , bigflake, and developer.android.com , but I'm too new to figure out how to adapt them to my needs. I've been banging my head about this for weeks now.

Does anyone have a snippet that will do the trick by assuming some arbitrary hardcoded paths to two files on external storage? I think just a good look at what works will teach me a lot.

Thank!