snippets/tools/FILM-GIFS-FOR-README.md

Record GIFs for README.md files

On Fedora I use wf-recorder for recording screen to mp4, and ffmpeg for post processing to .gif.

wf-recorder -g "$(slurp)" \
  -f <MP4-FILE-NAME>.mp4 \
  -c libx264 \
  -r 30 \
  -p crf=18 \
  -p preset=slow

like something like this

 ffmpeg -i hagfish.mp4 \
  -vf "fps=15,scale=920:-1:flags=lanczos,split[s0][s1];[s0]palettegen=max_colors=256:stats_mode=diff[p];[s1][p]paletteuse=dither=sierra2_4a" \
  -loop 0 \
  hagfish.gif

keep the scale at 920, I think it looks good on Gitea and probably GitHub