Log message:
gifski: remove unneeded clang dependency

Bump PKGREVISION.

Log message:
graphics/gifski: update to 1.10.3

1.10.3
 - Fixed an edge case in animations with low amount of movement and pixels
   becoming transparent.
 - Fixed GIF conformance when using lossy encoding and frames with only 2
   colors

Log message:
*: Recursive revbup from graphics/freetype2

Log message:
graphics/gifski: update to 1.10.0

With the --fast flag gifski is now about as quick as ffmpeg in wall-clock time*,
but still generates files that are smaller and look better at the same time.
*(tested on M1 CPU, so YMMV)

The latest version performs LZW encoding of frames in parallel, and avoids using
most of gifsicle codebase except the lossy LZW compression part.
PNG decompression and resizing now also run on a threadpool even when used via
gifski's C API.

gifski can now make a good use of 8 CPU cores, which a serious overengineering
of the sequential GIFs encoding, but I'm using Rust, so I just had to throw
multi-threading at every problem.

Log message:
graphics/gifski: update to 1.9.0

 - gifski can now read other GIF animations as an input. It's a very bad idea
   to try to use it as an optimizer, since it will inherit a bad quality and
   can only make it worse. However, combined with the --width option it can be
   useful for generating thumbnails of GIF animations.

 - it now uses multiple threads for resizing and preprocessing when reading
   videos, so might be faster on multi-core machines, especially when
   using --fast

Log message:
graphics/gifski: import package

Highest-quality GIF encoder based on pngquant.

gifski converts video frames to GIF animations using pngquant's fancy features
for efficient cross-frame palettes and temporal dithering.
It produces animated GIFs that use thousands of colors per frame.

It's a CLI tool, but it can also be compiled as a C library for seamless use in
other apps.
gifski is a command-line tool. There is no GUI for Windows or Linux (there is
one for macOS).