Miscellany

svn build fmpeg gives me new problems.  

./ffmpeg -i input.avi -qscale 1 -bt 1000 -vcodec xvid -ar 24000 -ab 96 -s 640x480 -bufsize 8192 output.mp4

FFmpeg version SVN-r8564, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --prefix=/usr/local --libdir=/usr/lib/ --enable-x264 --enable-gpl --enable-xvid
  libavutil version: 49.4.0
  libavcodec version: 51.40.2
  libavformat version: 51.11.0
  built on Mar 31 2007 02:32:22, gcc: 4.1.1 (Gentoo 4.1.1-r3)

Seems stream 0 codec frame rate differs from container frame rate: 23.98 (65535/2733) -> 23.98 (10000000/417083)
Input #0, avi, from 'input.avi':
  Duration: 00:24:04.8, start: 0.000000, bitrate: 987 kb/s
  Stream #0.0: Video: mpeg4, yuv420p, 640x480, 23.98 fps(r)
  Stream #0.1: Audio: mp3, 48000 Hz, stereo, 128 kb/s
File 'output.mp4' already exists. Overwrite ? [y/N] y
Output #0, mp4, to 'output.mp4':
  Stream #0.0: Video: xvid, yuv420p, 640x480, q=2-31, 200 kb/s, 23.98 fps(c)
  Stream #0.1: Audio: 0x0000, 24000 Hz, stereo, 0 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Unsupported codec for output stream #0.1