How to cut the video into segments that do not exceed a certain duration by keyframes?

[iG8R]

Well, the question is what the title says.
For example, I have a video with a duration of 22:45:49.708, and I want to split it into segments not exceeding 03:59:59.999 in length, at keyframes. How can I do this more conveniently than now, avoiding the following hassle:

1. Segments -> Create fixed duration segments -> 03:59:59.999

2. Segments -> Align segment times to keyframes

3. And so the manual labor begins...

[mifi]

unfortunately i don't know exactly how to do that. it should be possible to implement such a split operation, but it needs to be done by someone who has a good logical/mathematical brain to make such an algorithm. my brain does not compute such an algorithm

[iG8R]

Why not perform the splitting sequentially: first, calculate the first segment — 03:59:59.999, finding the nearest previous keyframe (in my example, it will be at 03:59:58.000); then, to this last keyframe 03:59:58.000, add the duration 03:59:59.999 and again find the nearest previous keyframe, and so on until the end.

[mifi]

It's still not obvious to me how to implement the logic you described in code. we are talking about the following data here and the code will have to implement some kind of for-loop to generate the new segments based on:

1. input: desired_max_duration
2. input: keyframes (list of absolute times)
3. output: list of segments (start_time, end_time)

[iG8R]

1st segment: 03:59:59.999, finding the nearest previous keyframe -> 03:59:58.000
2nd segment: 03:59:58.000 + 03:59:59.999 = 7:59:57:999, finding the nearest previous keyframe ->7:59:52:500
3rd segment: 7:59:52:500 + 03:59:59.999 = 11:59:52:499, finding the nearest previous keyframe -> 11:59:52.125
and so on, like in the screenshot: