https://bugs.kde.org/show_bug.cgi?id=476186
--- Comment #7 from Noah Davis <noaha...@gmail.com> --- (In reply to Adam Fontenot from comment #6) > Created attachment 165924 [details] > screencast illustrating poor recording quality > > I see this on the latest beta (kpipewire 5.92.3, spectacle 24.01.95) with > VP9 recording. As requested I'm attaching a video, which is a short > recording I made of Crosswords [1] to illustrate a bug with that program. > > These are clearly encoding artifacts stemming from the very low CRF used by > default (31) for VP9. I was able to mostly fix the issue by changing the > default quality to 20, which seems like a much more reasonable default. > > [1] https://gitlab.gnome.org/jrb/crosswords >From all the reading of encoder documentation I've done in the past, 31 is not low, it's average and actually looks decent when doing fullscreen recording. In my own tests, there was not a significant difference in quality between 20 CRF and 31 CRF when doing fullscreen recording either. For me, fullscreen is 1080p@60Hz or 4K@60Hz. For some reason, recording a smaller region has a strong negative effect on recording quality, so we may need to scale quality with region size inversely. -- You are receiving this mail because: You are watching all bug changes.
