[sway] add libva-v4l2-request

editions/sway

@@ -118,6 +118,7 @@ cups-pdf
 foliate
 ffmpeg
 ffmpegthumbnailer
+libva-v4l2-request
 gcolor3
 gnome-epub-thumbnailer
 hexyl

overlays/sway/etc/profile.d/gtk-wayland.sh

@@ -2,8 +2,9 @@
 
 # Most pure GTK3 apps use wayland by default, but some,
 # like Firefox, need the backend to be explicitely selected.
+export LD_PRELOAD=/usr/lib/libgtk3-nocsd.so.0
+export LIBVA_DRIVER_NAME=v4l2_request
+export LIBVA_V4L2_REQUEST_VIDEO_PATH=/dev/video1
 export MOZ_ENABLE_WAYLAND=1
 export MOZ_DBUS_REMOTE=1
-export LIBVA_DRIVER_NAME=v4l2_request
 export GTK_CSD=0
-export LD_PRELOAD=/usr/lib/libgtk3-nocsd.so.0