Thanks. This worked for me too in (L)Ubuntu 11.04
sudo apt-get install ffmpeg libavcodec-extra*
for Ubuntu 11.10
great solution. It worked perfectly on the first try!
Sweet thanks this was very helpful and worked well!
I am unable to check that link. But got the app "winff" working since page 2 was informative on what needs to be installed.
I am including a screenshot of the error.
For Precise, install libavcodec-extra-53; looks like an update to the package, but this fix works perfectly.
Registered Linux User #479009
Friend-->Linux; 6 and counting...
yeah, libavcodec-extra-52 ....
you save me ...