~$ mencoder -ovc lavc -oac lavc -lavcopts vcodec=mpeg2video:acodec=ac3 -of mpeg -mpegopts format=mpeg2:tsaf -o /tmp/google-videos/vim/vim-talk-2007.mpeg2 /tmp/google-videos/vim/vim-talk-2007.mp4
MEncoder dev-SVN-rUNKNOWN-4.1.2 (C) 2000-2006 MPlayer Team
CPU: Intel Celeron Covington/Pentium II Deschutes,Tonga/Pentium II Xeon (Family: 6, Model: 5, Stepping: 2)
CPUflags: Type: 6 MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled with runtime CPU detection.
success: format: 0  data: 0x0 - 0xe354657
Quicktime/MOV file format detected.
VIDEO:  [avc1]  320x240  24bpp  29.969 fps    0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:7  fourcc:0x31637661  size:320x240  fps:29.97  ftime:=0.0334
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
AUDIO: 44100 Hz, 2 ch, s16le, 61.6 kbit/4.36% (ratio: 7699->176400)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio) decoder)
==========================================================================
PACKET SIZE: 2048 bytes, deltascr: 245760
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
Limiting audio preload to 0.4s.
Increasing audio density to 4.
VDec: vo config request - 320 x 240 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
videocodec: libavcodec (320x240 fourcc=3267706d [mpg2])
[mpeg2video @ 0xa760faa8]MPEG1/2 does not support 29969/1000 fps
Could not open codec.
FATAL: Cannot initialize video driver.

Exiting...