Decoder SFC only supports down-scaling at most to 1/8. For example, given a 4K bistream, SFC can scale it to 1080p via: "msdkh265dec ! video/x-raw,width=1920,height=1080 ! glimagesink" Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1444>