Comment 34 for bug 1086075

Ah, I should have guessed it. So the FFmpeg presets are a way to specify a group of settings to apply during encoding to achieve some particular goal (e.g. quality level or file size).

Here is some information about it:

http://wiki.helioviewer.org/wiki/Movie_generation_using_FFmpeg

Can you check to see if you have any .ffpreset files? You can try checking the default locations (e.g. /usr/share/ffmpeg), or using 'sudo updatedb' and 'locate' to look for 'ffpreset'.

Depending on which presets you have available, we can either adjust the relevant settings in Config.ini, or you can copy the presets included with Helioviewer, which are located in "api/resources/FFmpeg/".