zeb@endor:/data$ avconv -v verbose
avconv version 12_dev0-6:12~~git20150302.91eee2a~ubuntu14.04.1, Copyright (c) 2000-2015 the Libav developers
  built on Mar  2 2015 16:41:10 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu --enable-shared --disable-static --cpu=586
  avutil      configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu/i686/cmov --cpu=i686 --enable-shared --disable-static
  avcodec     configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu/i686/cmov --cpu=i686 --enable-shared --disable-static
  avformat    configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu/i686/cmov --cpu=i686 --enable-shared --disable-static
  avdevice    configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu/i686/cmov --cpu=i686 --enable-shared --disable-static
  avfilter    configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu/i686/cmov --cpu=i686 --enable-shared --disable-static
  avresample  configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu/i686/cmov --cpu=i686 --enable-shared --disable-static
  swscale     configuration: --arch=i386 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:12~~git20150302.91eee2a~ubuntu14.04.1' --libdir=/usr/lib/i386-linux-gnu --prefix=/usr --disable-avserver --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/i386-linux-gnu/i686/cmov --cpu=i686 --enable-shared --disable-static
  libavutil     54.  9. 0 / 54.  9. 0
  libavcodec    56. 17. 0 / 56. 17. 0
  libavformat   56. 16. 0 / 56. 16. 0
  libavdevice   55.  1. 0 / 55.  1. 0
  libavfilter    5.  0. 0 /  5.  0. 0
  libavresample  2.  1. 0 /  2.  1. 0
  libswscale     3.  0. 0 /  3.  0. 0
Hyper fast Audio and Video encoder
usage: avconv [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man avconv'
zeb@endor:/data$