I've been asked to make a 'dubsmash' alike app, where you record a video but with a music over it. So the video file needs to have the custom audio track embeded. Is it possible? (I'm noob with android :p ) Thanks!
Although you have not "demonstrated" any effort of your own, so I should not answer this as per rules, but here goes : Yes, it is possible. Read this : http://developer.android.com/reference/android/media/MediaMuxer.html
FYI : The code in the example works perfectly, so please don't ask for any other sample