Thanks for your reply, Vincent. It's very helpful and clarify.
I still have one question:
Is there any chance that ffmpeg developer might implement this?
Because it's not intuitive for user to compute the duration when
cropping the video. And as the wiki said, `-t` and `-to` is duplicate
in this
>
> I look up the ffmpeg document
You have probably missed the part of https://trac.ffmpeg.org/wiki/Seeking that
says 'Note when "-ss" used before "-i" only: ("-ss" as input option) the
timestamps will be reset according to 0.͏ So "-t" and "-to" shall be the
same.' :-)
[Q1] Is this really intent
Hi,
I am using ffmpeg to crop video based on this command:
ffmpeg -i input.mp4 -ss 23:43 -to 40:00 -c:v copy -c:a copy output.mp4
but this is a little bit slow, so I try to switch the -ss parameter before
-i, which looks like:
ffmpeg -ss 23:43 -i input.mp4 -to 40:00 -c:v copy -c:a copy output.mp4
