FFmpeg version UNKNOWN, Copyright (c) 2000-2010 the FFmpeg developers
  built on Nov  9 2010 12:08:03 with gcc 4.2.1 (Apple Inc. build 5664)
  configuration: --prefix=/Users/worth/OtherApps/ffmpeg/ffmpeg/../local/i386 --enable-static --enable-shared --enable-gpl --enable-version3 --enable-libmp3lame --enable-pthreads --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libspeex --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-libvpx --enable-memalign-hack --disable-debug --disable-stripping --arch=x86_32
  libavutil     50.33. 0 / 50.33. 0
  libavcore      0.12. 0 /  0.12. 0
  libavcodec    52.94. 3 / 52.94. 3
  libavformat   52.84. 0 / 52.84. 0
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.59. 0 /  1.59. 0
  libswscale     0.12. 0 /  0.12. 0
[flv @ 0x1808010] Estimating duration from bitrate, this may be inaccurate

Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 29.92 (359/12)
Input #0, flv, from '/Users/willg/Movies/Miro/YouTube/e17a6.flv':
  Metadata:
    duration        : 4215
    starttime       : 0
    totalduration   : 4215
    width           : 320
    height          : 240
    videodatarate   : 250
    audiodatarate   : 64
    totaldatarate   : 323
    framerate       : 30
    bytelength      : 170039941
    canseekontime   : true
    sourcedata      : BD075E904HH1286908335141051
    purl            :
    pmsg            :
  Duration: 01:10:14.84, start: 0.000000, bitrate: 322 kb/s
    Stream #0.0: Video: flv, yuv420p, 320x240, 256 kb/s, 29.92 tbr, 1k tbn, 1k tbc
    Stream #0.1: Audio: mp3, 22050 Hz, 1 channels, s16, 65 kb/s
At least one output file must be specified
