frontends/va: Return an error if non-interlaced buffer is not supported

Add a check to vaDeriveImage to see if a non-interlaced buffer was
created successfully. Otherwise, return an error, since we won't be able
to derive an image from the interlaced buffer.

Prevents a null pointer dereference from occuring on some nVidia cards,
reported by Alexander Kapshuk.

v2: Check for PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE support (Ilia)

Fixes: fcb558321e6 ("frontends/va: Derive image from interlaced buffers")
Signed-off-by: Thong Thai <thong.thai@amd.com>
Tested-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8320>
(cherry picked from commit 4b208cc503ddf0c4ed81e24cf4bf68403072c7d1)
2 files changed