How to fix speedup with AviSynth?

[VideoFanatic]

Invert.Main doesn't seem to do anything to the frame numbers. It's just inverting the colours.

[jagabo]

Invert.Main doesn't seem to do anything to the frame numbers. It's just inverting the colours.

Of course. The point was to make it obvious where the middle section starts and ends. It's not where you think it is. See my previous post.
https://forum.videohelp.com/threads/353056-How-to-fix-speedup-with-AviSynth?p=2263343&v...=1#post2263343

[VideoFanatic]

I know the frame numbers are different in my script than in the video before I used a script on it. I thought that the script slows down the video which caused the video to be longer which means the trim times will be different. In AvsPmod the trims I selected have trimmed the exact sections that I want sped up and slowed down (in AvsPmod at least). Yet when the video is encoded it's not slowing down the correct sections, etc.

Previously I tried setting trims without using the slow/down script. I noted down the trim frames. Then I loaded the full script and entered those trim frames. That too did not slow down the sections I wanted. So how do I get this working?

[jagabo]

I thought that the script slows down the video which caused the video to be longer which means the trim times will be different.

You are trimming before changing the speed:

Main # go back to the original video
Trim(28788,39486)

OK, don't take my advice. Just go ahead and keep banging your head against the wall.

[VideoFanatic]

That's the first time you told me to put the trims after changing the speed. I tried putting the trims after TimeStretch but it made no difference. I've tried all sorts of trim times and none of them worked. I've been trying this for ages and I can't get it working. Can you please tell me exactly what trims I should be using and where I should put them?

There seems to be a problem with the middle trim. All trims start and end where they're supposed to apart from the middle trim where it ends where it's supposed to but it doesn't start where it's supposed to even though I only set the start frame as 1 frame more than the end frame of part 1.

[jagabo]

I'm not telling you to trim after changing the speed. I'm pointing out that you are trimming before changing the speed. So you trim points need to be based on the original video's frame numbers.

[VideoFanatic]

I understand now thanks. It's working now.