xpra segfaults if codec is switched to vp9 codec
I run xpra with xfce on alpine in docker:
https://github.com/micw/docker-alpine-xpra-xfce4-base
When I connect and switch to codec vp9, xpra segfaults.
According to xpra devs in irc, “vp9 segfaults are usually build issues”.
(from redmine: issue id 8412, created on 2018-01-25)