Sunday 18 November 2012

HOWTO: Cut the end off a video file using ffmpeg

I had a video file from which I needed to cut the end off from a specific point. I didn't want to use a video editor since it seemed a simple enough task, so I went look for alternate solutions.

The following page gave me a solution using ffmpeg:
http://quickhowto.blogspot.com.au/2011/02/how-to-truncate-video-using-command.html

ffmpeg -vcodec copy -acodec copy -i [inputfile] -ss [start] -t [duration] [outputfile]

My first attempt failed because I specified a duration of 36 seconds and I wanted 36 minutes. Reading ffmpeg's man page confirmed that the duration needs to be specified in the format hh:mm:ss. In my case I needed "00:36:00".

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