Typically, on Linux with X11 we will only need
BGRX so there is no need to keep track of the conversions to and from
Too difficult, most combinations are valid, they're just not very useful.
ie: when we have
nvenc) then that's what we'll use, but going via
YUV420P and a CSC step is also a valid option (which uses less bandwidth and CPU). We never want to use
h264, because that would require a
XGRB CSC step, but we don't know in advance that there are going to be better options..
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2226