I have a file called ffmpeg.cmd which has inpoints and outpoints.
file 'testA.webm'
inpoint 00:02:11.032
outpoint 00:02:36.900
file 'testA.webm'
inpoint 00:09:06.100
outpoint 00:09:43.799
If I run ffmpeg -f concat -safe 0 -async 1 -i ffmpeg.cmd out.mp4 I do not get precise cuts. They can be a second or more off. I found another question about this which suggested setting async to 1, but I couldn't get that to work either.
I tried converting the original webm to mp4 (going from VP9 to h264) and I still had the same issue. Is there a certain codec my source video needs to be in order for ffmpeg to make percise cuts, or another argument I need on the command line?
