Merge "MediaMuxer:Include info to specify last sample duration" into rvc-dev...
Merge "MediaMuxer:Include info to specify last sample duration" into rvc-dev am: 11b93f6f am: 977dc2b1 am: 4bbd120d am: 7a1b811c
Change-Id: I1cf1e6e8c868ab6f1375b096c04fe1855a8ed2b0