[dracodoc]

My use case is to cut segments from one video file and append the segments together. This way I can trim ads or parts I don't want.

The aged virtualdub does this as long as the container is avi (the codec could be avc/h.264 etc). I used avidemux to convert mp4 to avi without reencoding (just change the container format), then use virtualdub to trim it.

Actually I just write time stamps in a text file then use a groovy script to generate a script can be read by virtualdub, run virtualdub with the script to do the trimming.

It has worked for me for many years.