As a maintainer of Blender 3D for Fedora project, the ffmpeg support has
to be disabled due to the policies related to patent issues (see
https://fedoraproject.org/wiki/Software_Patents) in the USA. The side
effect is the video sequence editor cannot play any open source codecs
such as webm and theora.
An alternative will be to include support for gstreamer
(https://gstreamer.freedesktop.org/) because of its plugin flexibility
i.e. installing one for say mp4 is much easier.
Graphic & Web Designer
Bf-committers mailing list