WARNING: library configuration mismatch

root@ubuntu:/home/zhangbin# ffmpeg

ffmpeg version N-43977-g85c8303 Copyright (c) 2000-2012 the FFmpeg developers

  built on Aug 30 2012 11:14:11 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)

  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-runtime-cpudetect --enable-gray --enable-avresample --enable-x11grab --enable-bzlib --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-zlib --enable-pic --enable-libfaac --enable-libass

  WARNING: library configuration mismatch

  swscale     configuration: --extra-version='4:0.8.3-0ubuntu0.12.04.1' --arch=i386 --prefix=/usr --libdir=/usr/lib/i386-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libfreetype --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i386-linux-gnu --enable-shared --disable-static

  postproc    configuration: --extra-version='4:0.8.3-0ubuntu0.12.04.1' --arch=i386 --prefix=/usr --libdir=/usr/lib/i386-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libfreetype --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i386-linux-gnu --enable-shared --disable-static

  libavutil      51. 70.100 / 51. 70.100

  libavcodec     54. 54.100 / 54. 54.100

  libavformat    54. 25.104 / 54. 25.104

  libavdevice    54.  2.100 / 54.  2.100

  libavfilter     3. 14.100 /  3. 14.100

  libswscale      2.  1.101 /  2.  1.  0

  libswresample   0. 15.100 /  0. 15.100

  libpostproc    52.  0.100 / 52.  0.  0

Hyper fast Audio and Video encoder

usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'

root@ubuntu:/home/zhangbin# 

http://askubuntu.com/questions/26169/warning-library-configuration-mismatch-when-running-ffmpeg

Some of your ffmpeg packages (the medibuntu ones) are older than the updated ones from maverick-updates.

 This can cause problems asABIs change.

Three options for avoiding a mismatch:

1. Purge out the Medibuntu packages and go back to pure Ubuntu packages (you might lose some codec options).
2. Set the version of the now updated packages back to the approximate medibuntu version and lock them so they're not updated again.
3. Or compile it yourself. Not as easy as other things.

Option 2 is probably the easiest with the best results.