FFmpeg version:

    FFmpeg version SVN-r21643, Copyright (c) 2000-2010 Fabrice Bellard, et al. built on Feb 5 2010 14:00:38 with gcc 4.3.3 configuration: --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libvorbis --enable-pthreads --disable-stripping --enable-libdc1394 --enable-shared --disable-static --enable-libxvid --enable-libx264 --enable-libfaad --enable-libfaac --enable-libmp3lame --enable-nonfree --enable-libtheora libavutil 50. 8. 0 / 50. 8. 0 libavcodec 52.52. 0 / 52.52. 0 libavformat 52.50. 0 / 52.50. 0 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.17. 0 / 1.17. 0 libswscale 0. 9. 0 / 0. 9. 0 libpostproc 51. 2. 0 / 51. 2. 0 /usr/bin/ffmpeg: missing argument for option 'v'

Version of FFmpeg running on your system
Supported file formats:
name	type	decode	encode	description
File formats that the installed version of FFmpeg supports.
Installed codecs:
codec	codec type	decode	encode
FFmpeg was either compiled with these codecs, or these are the codecs available on your system