[vlc-devel] [PATCH 2/2] vout: vulkan: add a variety of built-in shaders

[Niklas Haas]

On Mon, 22 Jun 2020 09:45:58 +0200, Romain Vimont <rom1v at videolabs.io> wrote:
> > +"//!TEXTURE ravu_lut3\n"
> > +"//!SIZE 5 648\n"
> > +"//!FORMAT rgba16f\n"
> > +"//!FILTER NEAREST\n"
> > +"1a88533af88e23bb14d5c73afaa0e53ab42022bbcfc4583abb5687bb3fe2283c...
> 
> For info, what is this hexa string, containing 103682 chars?

It is a hard-coded look-up table of pretrained weights. The source of
this shader is https://github.com/bjin/mpv-prescalers, which contains
more information about how the weights were trained (and how to train
your own, if you really want to - it's a simple linear regression).

For the curious, the weights were trained using a very scientifically
collected database of anime movies. :)

Do you want me to add this information in the commit message or a
comment, or were you merely asking for your own curiosity?