I’m looking for libwebpdemux.so, possibly 0.4.x. I had it installed on my CentOS6, from EPEL, but now on CentOS7, EPEL doesn’t provide it at all. Anybody knows about it? Maybe a rpm rebuild would do it?
Packages don’t just appear in EPEL for el7 because they are there for el6, someone has to request them.
I would suggest you make a request for libwebpdemux for el7 and see if the el6 maintainer is willing to maintain this for el7 also. See:
Did that, contacted the package maintainer, thanks for the tip!