the open h.264 blob thing is annoying, but it's supposed to be a reproducible build of open source software. The reason why there's a blob is because for that

the open h.264 blob thing is annoying, but it's supposed to be a reproducible build of open source software. The reason why there's a blob is because for that binary, Cisco pays the patent licenses. So you can verify the source for any issues, verify whether it matches the binary, and work around MPEG-LA licensing at the same time (there are caps, and Cisco seems to have calculated that even when running into them, they're still better off with having webrtc support h.264 everywhere).