What to use to quickly cut Audio/Video

Question

If just need to crop Audio/Video from a longer track, what can I use? I tried OpenShot, but I find the export video slow, perhaps its compling all the "layers" into a new movie? Perhaps I just need a simple "crop" tool for audio/video will surfice?

Answer 1

Avidemux (From PPA) - http://avidemux.sourceforge.net/

OpenShot (From PPA) - https://launchpad.net/openshot/1.3/1.3.1 / http://www.openshot.org/ppa/

Pitivi (From PPA) - http://www.pitivi.org/?go=download

I was going to mention commands like ffmpeg or avconv (The new one) which can OBVIOUSLY split files into groups. For example:

FFMPEG (Deprecated in 12.04+)

ffmpeg -i input.avi -vcodec copy -acodec copy -ss 00:00:00 -t 00:30:00 output1.avi
ffmpeg -i input.avi -vcodec copy -acodec copy -ss 00:30:00 -t 00:30:00 output2.avi
ffmpeg -i input.avi -vcodec copy -acodec copy -ss 01:00:00 -t 00:30:00 output3.avi

Or

ffmpeg -ss 0 -t 100 -i source.m4v -vcodec copy -acodec copy part1.m4v
ffmpeg -ss 100 -t 100 -i source.m4v -vcodec copy -acodec copy part2.m4v
ffmpeg -ss 200 -t 100 -i source.m4v -vcodec copy -acodec copy part3.m4v
ffmpeg -ss 300 -t 100 -i source.m4v -vcodec copy -acodec copy part4.m4v

avconv -i input.avi -vcodec copy -acodec copy -ss 00:00:00 -t 00:30:00 output1.avi
avconv -i input.avi -vcodec copy -acodec copy -ss 00:30:00 -t 00:30:00 output2.avi
avconv -i input.avi -vcodec copy -acodec copy -ss 01:00:00 -t 00:30:00 output3.avi

Or

AVCONV

avconv -ss 0 -t 100 -i source.m4v -vcodec copy -acodec copy part1.m4v
avconv -ss 100 -t 100 -i source.m4v -vcodec copy -acodec copy part2.m4v
avconv -ss 200 -t 100 -i source.m4v -vcodec copy -acodec copy part3.m4v
avconv -ss 300 -t 100 -i source.m4v -vcodec copy -acodec copy part4.m4v

Or do some script like here: http://icephoenix.us/notes-for-myself/auto-splitting-video-file-in-equal-chunks-with-ffmpeg-and-python/

Answer 2

I'm using ffmpeg CLI interface for that. It's very easy and fast:

• to cut video:

  ffmpeg -i InputFile -vcodec copy -acodec copy -ss 00:00:00 -t 00:01:32 OutPutFile

• to cut audio:

  ffmpeg -i InputFile -vn -acodec copy -ss 00:00:00 -t 00:01:32 OutPutFile

In both of these -ss is a start point, while -t - is a duration of the piece.

You can calculate duration e.g. using LibreOffice Calc or python's dateutil package.

Answer 3

For quickly cutting I have used MythTV. I recorded some show, let it automatically search for the commercial breaks and fine-tuned the found markers. After this I started the Myth archiving function and burned all to DVD, without the commercials.

I have to admit, it worked gread from about 2006 or such. Somewhere in 2008 or 2009 some update ruined it all, my markers where somehow shifted.

Right now, I'm in the progress of re-installing this myth stuff, just to see if I can get the trimmer/editor and archiver working.

Answer 4

you can use winff (GUI for ffmpeg) also