[FFmpeg-user] Is libplacebo only for GPUs?

[Paul B Mahol]

On Thu, May 15, 2025 at 8:40 PM Andrew Randrianasulu <
randrianasulu at gmail.com> wrote:

> чт, 15 мая 2025 г., 23:33 Mark Filipak <markfilipak.imdb at gmail.com>:
>
> > If my pixel format is gbrpf32le, should I be using libplacebo?
> >
> > Libplacebo says, "Flexible GPU-accelerated"...
> >
> > What if I don't have a GPU?
> >
>
> https://ffmpeg.org/ffmpeg-filters.html#toc-Examples-89
>
> it says
>
> ====
> Run this filter on the CPU, on systems with Mesa installed (and with the
> most expensive options disabled):
>
> ffmpeg ... -init_hw_device vulkan:llvmpipe ... -vf
> libplacebo=upscaler=none:downscaler=none:peak_detect=false
>
> ====
>
> but to be honest it does not work that fast in this mode. But may be on
> much faster cpu ot will work better?
>

On linux, there was/still is? software gpu emulator processing stack that
does it all on CPU.
Ultra slow for sure.


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