codec para convertir a mp4

["Luis Rondon Paz" <luis@azunet.minaz.cu>]

hola amigos en debian usando el ffmpeg que codec debo instalar para
convertir cualquier tipo de video a formato mp4 ?


--------------------
ffmpeg -i m.mpg m.mp4
FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --enable-gpl --enable-pp --enable-pthreads
--enable-vorbis --enable-libogg --enable-a52 --enable-dts
--enable-libgsm --enable-dc1394 --disable-debug --enable-shared
--prefix=/usr
  libavutil version: 0d.49.0.0
  libavcodec version: 0d.51.11.0
  libavformat version: 0d.50.5.0
  built on Mar 26 2007 15:50:40, gcc: 4.1.2 20061115 (prerelease) (Debian
4.1.1-21)
Input #0, mpeg, from 'm.mpg':
  Duration: 01:26:18.8, start: 0.452389, bitrate: 1286 kb/s
  Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 352x240, 1173 kb/s,
29.97 fps(r)
  Stream #0.1[0x1c0]: Audio: mp2, 44100 Hz, stereo, 96 kb/s
Output #0, mp4, to 'm.mp4':
  Stream #0.0: Video: mpeg4, yuv420p, 352x240, q=2-31, 200 kb/s, 29.97 fps(c)
  Stream #0.1: Audio: 0x0000, 44100 Hz, stereo, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Unsupported codec for output stream #0.1
-------------

alguna sugerencia será bien agradecida

Saludos .
L