extra byte and are not compliant with ISO 14496-12.  This causes some strict 
demuxers (notably the MPEG-4 ALS reference software) to fail.  It has been 
confirmed that not writing the extra byte will still allow the generated MP4 
files to work with QuickTime/iTunes/iPod.
Approved by Baptiste on IRC.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20571 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b