Re: Mesa in F37- vaapi support disabled for h264/h265/vc1
On Wed, Sep 28, 2022 at 7:48 PM Simon Farnsworth via devel
<devel(a)lists.fedoraproject.org> wrote:
> On 28 Sep 2022, at 14:27, Neal Gompa <ngompa13(a)gmail.com> wrote:
>
> On Wed, Sep 28, 2022 at 3:22 PM Ian Pilcher <arequipeno(a)gmail.com> wrote:
>>
>> On 9/28/22 03:50, Tommy Nguyen wrote:
>>> This change will only affect AMD, as the intel non-free drivers do not
>>> depend on the changes. It is also unclear how this would affect nvidia.
>>> There is barely any hardware video acceleration support for nouveau
>>> anyway, for which you would install the proprietary driver. Further, as
>>> NVIDIA does not expose a vaapi interface, you need to install third
>>> party packages to get it to work with Firefox. So AFAICT this will
>>> primarily (if not only) affect AMD users.
>>
>> So only everybody who specifically purchased a discrete GPU that works
>> "out of the box" with Fedora?
>
> Well, we don't ship any userspace software that provides the necessary
> support code to use those codecs anyway.
>
Firefox was able to use VA-API on Intel (at least - I don’t have Radeon hardware to hand)
to accelerate H.264 decode.
Intel doesn't use Gallium (Mesa) for VA-API. You need a separate
driver package for it, which we currently don't ship and the version
being reviewed will not have these codecs enabled.
And we ship gstreamer1-vaapi which lets any GStreamer using
application (Totem, for example) use hardware acceleration.
Hmm, I forgot about that. FFmpeg doesn't have it because ffmpeg does
stupid things when the codec is available but doesn't work. GStreamer
is probably more intelligent about failing over.
--
真実はいつも一つ！/ Always, there's only one truth!