test@ubuntu:/usr/local/src$ openRTSP -4 "rtsp://mafreebox.freebox.fr/fbxtv_pub/stream?namespace=1&service=201&flavour=sd" | ffmpeg -i pipe: -vf yadif -acodec libfaac -ar 44100 -ab 64k -coder ac -vcodec libx264 -b:v 1536k -maxrate 1728k -bufsize 4800k -profile:v baseline -preset:v veryfast -tune film -crf 20 -g 50 -f flv rtmp://192.168.0.2/live/live1
ffmpeg version git-2012-11-16-9264810 Copyright (c) 2000-2012 the FFmpeg developers
  built on Nov 16 2012 12:47:49 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  configuration: --enable-gpl --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
  libavutil      52.  7.100 / 52.  7.100
  libavcodec     54. 71.100 / 54. 71.100
  libavformat    54. 36.100 / 54. 36.100
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 23.100 /  3. 23.100
  libswscale      2.  1.102 /  2.  1.102
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100