freakshow@slackware:~/slackbuilds/spidermonkey/js/src$ mencoder -ovc help
MEncoder 1.0rc1-3.4.6 (C) 2000-2006 MPlayer Team
CPU: AMD Athlon(TM) XP 3000+ (Family: 6, Model: 10, Stepping: 0)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE
Available codecs:
copy - frame copy, without re-encoding. Doesn't work with filters.
frameno - special audio-only file for 3-pass encoding, see DOCS.
raw - uncompressed video. Use fourcc option to set format explicitly.
nuv - nuppel video
lavc - libavcodec codecs - best quality!
vfw - VfW DLLs, read DOCS/HTML/en/encoding-guide.html.
qtvideo - QuickTime DLLs, currently only SVQ1/3 are supported.
libdv - DV encoding with libdv v0.9.5
xvid - XviD encoding
x264 - H.264 encoding
freakshow@slackware:~/slackbuilds/spidermonkey/js/src$