On Monday, November 8, 2021 10:55:32 AM CET Dominik 'Rathann' Mierzejewski wrote: > On Monday, 08 November 2021 at 10:12, Andreas Schneider wrote: > > > Hi, > > > > there are several packages in the distribution which require FFMPEG > > (libavformat, libavcodec, etc.), one of them being chromium. The package > > could be created in a way that you can easily replace it with a version > > from rpmfusion to get to the full encoder/decoder set including H264 etc. > > > > This is working fine with openSUSE and packages from Packman. > > > > https://build.opensuse.org/package/show/multimedia:libs/ffmpeg-4 > > https://pmbs.links2linux.org/package/show/Essentials/A_tw-ffmpeg > > > > The Packman version always has a higher release version than the one in > > the distribution. > > > > I'm interested in this, as I try to package electron for Fedora. The big > > problem is the included ffmpeg. With openSUSE I can just use the system > > ffmpeg, with Fedora I have to do some source code voodoo which I really > > would like to avoid. > > > Maintaining such package would require keeping watch for any new files > you'd need to include and going through legal review each time you do. Did you take a look how they solved it at SUSE?

You have list for encoder and decoders which are allowed to be built. So if a new encoder or decoder would be added, it would just not be built. You will just always end up with the same set of encoders/decoders with every update.

Packman uses the exact same package as openSUSE and all it does it to enable all encoders and decoders. All packages requiring ffmpeg can just always be built against the system version. It should be less legal work, as you have to check just one package and not several which might include it as third_party source code.

> IMO it's much less work to just maintain everything that depends on > FFmpeg in RPM Fusion. > > If you're determined, however, you could start with what Chromium does: > https://src.fedoraproject.org/rpms/chromium/blob/rawhide/f/clean_ffmpeg.sh How is it less work if you need to clean ffmpeg source codes in several projects which include it instead of just linking the system one? It is more prone to errors to remove sources and you have to track it instead of just having a fixed decoder/encoder set you build.