vaapi: VP8 videos played as grayscale and compressed on left when vaapi is installed
The issue has been reported on https://launchpad.net/bugs/1978153 using gstreamer 1.20.1 stack
Example of video (screencast from GNOME) https://bugs.launchpad.net/ubuntu/+source/gstreamer-vaapi/+bug/1978153/+attachment/5596047/+files/Screencast%20from%2009-06-2022%2020%3A40%3A36.webm
Screenshot showing the issue https://launchpadlibrarian.net/606292186/Screenshot%20from%202022-06-10%2005-51-07.png
Using $ gst-play-1.0 --videosink="glsinkbin sink=gtkglsink" video.webm
shows the same issue than totem
The video plays fine if gstreamer1.0-vaapi is uninstalled. Trying gstreamer1.0-vaapi 1.20.2 doesn't resolve it