ffmpeg is amazing...but it really gives me a headache sometimes
AV Linux 5.0.2 comes with ffmpeg 0.6.2 which has been a particularly great version to work with and a version which I've spent a lot of time creating custom presets with for apps like WinFF and Cinelerra. If left as-is users should have no problems.
Yesterday (Nov. 8/2011) updated ffmpeg 0.7.7 and related libs packages came through the default enabled Debian Squeeze repositories and it has changed how it handles libx264 presets for the umpteenth time which basically breaks all my custom x264 presets for WinFF and Cinelerra and probably more that I haven't found yet. For those who may not be aware libx264 is the video codec used for Bluray, iPod and Youtube high quality flash among other new and emerging video formats.
The main issue is that libx264 presets in ffmpeg 0.6.2 had to be explicitly called on the command line with '-vpre' switches which has now changed in 0.7.7 with using '-profile' and '-preset' switches which vary depending on the desired container format.
AV Linux users can choose to:
1. Not update ffmpeg and libavformat, libavutil50, libpostproc51, libswscale, libavdevice and libavcodec52 (and their development libraries)
2. Pin the above packages to prevent them from updating in Synaptic
3. Update ffmpeg and related libraries with Synaptic and use the updated preset files for WinFF and Cinelerra here:http://www.bandshed.net/custom/ffmpeg-0.7.7-presets.zip
Download the zip and follow the instructions in the enclosed README