[FFmpeg-devel] mux problems (rephrasing Don't know how to describe)

[belcampo]

FFmpeg version SVN-r17607, Copyright (c) 2000-2009 Fabrice Bellard, et al.
   configuration: --prefix=/usr --enable-libx264 --enable-libxvid 
--enable-gpl --enable-libfaac --enable-libmp3lame --enable-pthreads 
--disable-ffserver --enable-libfaad --enable-ffplay
   libavutil     49.15. 0 / 49.15. 0
   libavcodec    52.20. 0 / 52.20. 0
   libavformat   52.31. 0 / 52.31. 0
   libavdevice   52. 1. 0 / 52. 1. 0
   built on Feb 26 2009 10:54:09, gcc: 4.2.2 20071128 (prerelease) 
(4.2.2-3.1mdv2008.0)

A. ffmpeg -t 12 -i bbchd.mpg -acodec .. -vcodec ... -f mpegts 
12secmuxedbyffmpeg.ts

ffmpeg -t 12 -i bbchd.mpg -an -vcodec ... -f rawvideo 
12secrawfromffmpeg.h264
ffmpeg -t 12 -i bbchd.mpg -vn -acodec ... -f rawvideo 12secrawfromffmpeg.aac

B. tsmuxer 12secraws to 12secfromraws.ts

C. tsmuxer 12secmuxedbyffmpeg.ts 12secmuxedbyffmpeg-remuxedbytsmuxer.ts

A. results in size 4633824
    Mediainfo says Frame count 472

B. results in size 4267976
    Mediainfo says Frame count 300

C. results in size 4488688
    Mediainfo says Frame count 317