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by iwalton3 2260 days ago
I made a script to do this a while back for cutting intros off of videos.

https://gist.github.com/iwalton3/c034ec5a942466206fbee859184...

The notable function that does video cuts without a full re-encode is shortenVideo, which cuts a certain number of seconds off the beginning of a video. I've never had any issues with it, but I only used it on h264 mp4 files.