ffmpeg version 0.7.6, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct  7 2011 16:08:08 with gcc 4.6.1
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --enable-static --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --disable-stripping --disable-debug --disable-doc --disable-network --disable-vaapi --disable-vdpau --enable-libmp3lame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libfaac --enable-nonfree --disable-indev=oss --enable-x11grab --disable-outdev=oss --enable-libfreetype --enable-pthreads --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libgsm --enable-libdirac --enable-libschroedinger --enable-libspeex --enable-libopenjpeg --disable-altivec --disable-avx --enable-pic --cpu=host --enable-hardcoded-tables
  libavutil    50. 43. 0 / 50. 43. 0
  libavcodec   52.122. 0 / 52.122. 0
  libavformat  52.110. 0 / 52.110. 0
  libavdevice  52.  5. 0 / 52.  5. 0
  libavfilter   1. 80. 0 /  1. 80. 0
  libswscale    0. 14. 1 /  0. 14. 1
  libpostproc  51.  2. 0 / 51.  2. 0
[mp3 @ 0x1418b20] Format mp3 detected only with low score of 25, misdetection possible!
[mp3 @ 0x141b4d0] Header missing
[mp3 @ 0x1418b20] max_analyze_duration 5000000 reached at 5016000
[mp3 @ 0x1418b20] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from '2 garcons ,1 fille ,3 possibilités[Spicy4WM].avi':
  Duration: 08:29:10.53, start: 0.000000, bitrate: 192 kb/s
    Stream #0.0: Audio: mp3, 48000 Hz, stereo, s16, 192 kb/s
At least one output file must be specified