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