Camera2 video recording without preview on Android: mp4 output file not fully playable

Question

I am trying to record video from the back camera (the one that faces the face) on my Samsung Galaxy S6 (which supports 1920x1080 at about 30 fps). I do not want to have to

Answer 1

Note the code above posted by harper requires these dependencies:

compile 'com.googlecode.mp4parser:isoparser:1.1.22'