am a768b4f8: am 8f1efee1: Merge "MediaMuxer prefer not to use the MPEG4Writer...
am a768b4f8: am 8f1efee1: Merge "MediaMuxer prefer not to use the MPEG4Writer in real time recording mode." into jb-mr2-dev
* commit 'a768b4f8':
MediaMuxer prefer not to use the MPEG4Writer in real time recording mode.