ffmpeg is my go to for any media -> any other media, I've yet to find any stream (audio/video) I can't manipulate. There will either be something on cpan or you could write a thin wrapper around the command. I'd be surprised if that site you linked to doesn't use ffmpeg/libavcodec on their backend.

In reply to Re: MP4 to GIF by marto
in thread MP4 to GIF by Bod

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