# /usr/local/bin/ffmpeg -i uploaded.wmv -ar 41000 -ab 32 stream.flv
FFmpeg version SVN-r6252, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --enable-mp3lame --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
  libavutil version: 49.0.0
  libavcodec version: 51.14.0
  libavformat version: 50.5.0
  built on Sep 17 2006 15:15:56, gcc: 3.4.4 [FreeBSD] 20050518

Seems that stream 1 comes from film source: 1000.00 (1000/1) -> 30.00 (30/1)
Input #0, asf, from 'uploaded.wmv':
  Duration: 00:02:06.6, start: 5.000000, bitrate: 354 kb/s
  Stream #0.0: Audio: wmav2, 32000 Hz, stereo, 32 kb/s
  Stream #0.1: Video: wmv3, yuv420p, 320x240, 30.00 fps(r)
File 'stream.flv' already exists. Overwrite ? [y/N] y
Output #0, flv, to 'stream.flv':
  Stream #0.0: Video: flv, yuv420p, 320x240, q=2-31, 200 kb/s, 30.00 fps(c)
  Stream #0.1: Audio: mp3, 41000 Hz, stereo, 32 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
Error while opening codec for output stream #0.1 - maybe incorrect parameters such as bit_rate, rate, width or height