The following commit is breaking MOV playback for me, e.g. "The Hobbit" trailer:
user: Torsten Jager <email@example.com>
date: Tue Feb 28 22:25:40 2012 +0000
Made demux_ts send pts not dts even for reordered (b-framed) video.
This fixes a very old bug causing more or less unpredictable a/v lag.
You can download the particular MOV file that I am using with this command:
$ wget -U QuickTime/7.6.2 http://trailers.apple.com/movies/wb/thehobbit1/thehobbit-tlr1_h720p.mov
test box is x86_64 Fedora 16.