[FFmpeg-user] Question regarding .gif thumbnailing

[pdr0]

FFmpeg-users mailing list wrote
> Hello. I'm using ffmpeg to generate thumbnails for my JavaScript web
> project. Now I'm having a little problem with .gif thumbnails. Original
> gif: https://files.catbox.moe/frrsev.gif my software's thumbnail:
> https://files.catbox.moe/3rtv3o.gif
> 
> As you can see, the thumbnail is not perfect and kind of buggy. This only
> happens with transparent .gifs. The filter i'm using is: [0:v]
> scale=${thumbSizeFilter},split [a][b]; [a]
> palettegen=reserve_transparent=on:transparency_color=ffffff [p]; [b][p]
> paletteuse
> 
> Any ideas on how to improve it? Thanks.

This works ok for me; it was fixed a while back. Make sure you use a recent
git version



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