Re: Firefox Hardware acceleration & VA-API how-to

[PGNet Dev]

On 11/16/21 22:48, Michael Cronenworth wrote:
>  On 11/15/21 12:03 PM, PGNet Dev wrote:
> >
> > launch @ shell
> >
> >     VDPAU_DRIVER=nvidia MOZ_LOG="Dmabuf:5, PlatformDecoderModule:5" firefox
>
>  
>  I think you mean:
>  
>  LIBVA_DRIVER_NAME=nvidia firefox 
nope.

	https://en.wikipedia.org/wiki/Video_Acceleration_API
		"As of 2019, VA-API is natively supported by libva-vdpau-driver for cards supported
by VDPAU"

libva-vdpau-driver is the translation layer that provides a VDPAU-based backend for
VA-API.

@ https://wiki.archlinux.org/title/Hardware_video_acceleration#Configuring_...

	"
	Configuring VDPAU
	You can override the driver for VDPAU by using the VDPAU_DRIVER environment variable.
	The correct driver name depends on your setup:
	...
	For NVIDIA's proprietary version set it to nvidia.
	
	Note:
	    You can find the installed drivers in /usr/lib/vdpau/. They are used as
/usr/lib/vdpau/libvdpau_${VDPAU_DRIVER}.so
	"


ls -al /usr/lib64/vdpau//libvdpau*nvidia*
   lrwxrwxrwx 1 root root   25 Nov 15 10:04 /usr/lib64/vdpau//libvdpau_nvidia.so.1 ->
libvdpau_nvidia.so.495.44*
   -rwxr-xr-x 1 root root 620K Nov 15 10:04 /usr/lib64/vdpau//libvdpau_nvidia.so.495.44*

cref:

  https://wiki.archlinux.org/title/Hardware_video_acceleration#VDPAU_drivers
  https://wiki.archlinux.org/title/Hardware_video_acceleration#NVIDIA_drive...
  https://wiki.archlinux.org/title/Hardware_video_acceleration#Application_...