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Re:Show HN: Recut, a native Mac app that automatically remov... by isomorphic on Wednesday March 03, 2021 @01:27AM (#26325397)
I don't know anything about how to do it with AVFoundation (or if it's possible, or if you're already doing this), but to some approximation depending upon codecs, you can make a lossless recode of the video. E.g., what Rogue Amoeba's Fission does, but for both video and audio.

You could also provide a way to export a list of cut points suitable for feeding to some other workflow. E.g., ffmpeg.

These may go beyond the simplicity and spirit of your app, which seems very nice.

Re:Show HN: Recut, a native Mac app that automatically remov... by dceddia on Wednesday March 03, 2021 @08:32AM (#26328027)
Oh yeah, the cut list is exactly what the app does now :) It can export XML, EDL, or a ScreenFlow project. That was the first feature I built, and the main thing I wanted. I think the video example demos better, but to me, the cut list is way more useful.