[FFmpeg-devel] [FFmpeg-devel, RFC] lavfi: add opencl tonemap filter.

[Rostislav Pehlivanov]

On 5 May 2018 at 18:40, Daniel Oberhoff <danieloberhoff at googlemail.com>
wrote:

>
> >
> > As a last note, you can find my GLSL(+Vulkan) implementations of the
> > algorithm changes described above, as well as all of the related
> > color-management code and various decision logic for what values to
> > infer/default here:
> > https://github.com/haasn/libplacebo/blob/master/src/shaders/colorspace.c
>
> Again I am wondering if there is interest of having gl and/or Vulkan
> filters in ffmpeg, along with direct transfer support where the
> source/target is on gpu, as with many of the hwaccel targets?
>
> That is what we do in our pipeline to get high throughput, and i‘d be
> happy in pushing some of that back into ffmpeg.
>
> Best,
>
> Daniel
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There is already a Vulkan patchset alongside a bunch of filters. I posted
it 2 weeks ago. Yes, it does accept GLSL using libshaderc. Yes, it supports
mapping VAAPI and DRM frames. Yes, its much faster than opencl on all
systems I've tested. No, there will not be an opengl-based filtering
system, only vulkan.