Re: 4k video playback on some videos makes entire system sluggish

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On Thu, Oct 5, 2023 at 9:01 PM Alex <mysqlstudent@xxxxxxxxx> wrote:
>
> Hi,
>
>> You might try uninstalling mesa-va-drivers and replacing with this:
>> mesa-va-drivers-freeworld
>>
>> one of my 2 machines was ok and a 2nd one looked closer to what yours
>> looked like.
>>
>> And replacing with freeworld it now looks much better and has a lot
>> more accelerators.
>
>
> I've done that, and now it definitely appears to have more support, but alas, it made no difference.
>
> $ vainfo The.Equalizer.mkv
> Trying display: wayland
> Trying display: x11
> libva info: VA-API version 1.18.0
> libva info: Trying to open /usr/lib64/dri/radeonsi_drv_video.so
> libva info: Found init function __vaDriverInit_1_18
> libva info: va_openDriver() returns 0
> vainfo: VA-API version: 1.18 (libva 2.18.2)
> vainfo: Driver version: Mesa Gallium driver 23.1.8 for AMD Radeon RX 570 Series (polaris10, LLVM 16.0.6, DRM 3.54, 6.5.5-200.fc38.x86_64)
> vainfo: Supported profile and entrypoints
>       VAProfileMPEG2Simple            : VAEntrypointVLD
>       VAProfileMPEG2Main              : VAEntrypointVLD
>       VAProfileVC1Simple              : VAEntrypointVLD
>       VAProfileVC1Main                : VAEntrypointVLD
>       VAProfileVC1Advanced            : VAEntrypointVLD
>       VAProfileH264ConstrainedBaseline: VAEntrypointVLD
>       VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
>       VAProfileH264Main               : VAEntrypointVLD
>       VAProfileH264Main               : VAEntrypointEncSlice
>       VAProfileH264High               : VAEntrypointVLD
>       VAProfileH264High               : VAEntrypointEncSlice
>       VAProfileHEVCMain               : VAEntrypointVLD
>       VAProfileHEVCMain               : VAEntrypointEncSlice
>       VAProfileHEVCMain10             : VAEntrypointVLD
>       VAProfileJPEGBaseline           : VAEntrypointVLD
>       VAProfileNone                   : VAEntrypointVideoProc
>
> I also just tried to play two regular 1080p videos at the same time using vlc, and it also showed the same problem where the system becomes effectively unusable.
>

Did you reboot after that?    The driver is loaded by vainfo (and
bypasses X11), but I also believe the original  driver is also loaded
by X11/Wayland and is still in memory when used via X11/Wayland.

I also found that some video tools (default mplayer) do not use vaapi.

And there are also ffmpeg versions in fedora/updates and a different
one with more free but not quite free 3rd-party licensed in rpmfusion
(ffmpeg-free vs ffmpeg)
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