[FFmpeg-user] to crop the bottom

Mark Himsley mark at mdsh.com
Fri Nov 18 11:46:09 CET 2011

On 17/11/2011 23:16, Jim Shupert wrote:
> friends,
> I wish to crop off the bottom 40 lines of a 720x480 video  and have the 
> output 720x480
> actually i wish to simply crop off the bottom 5 or 8 lines - but used 40 
> so the effect would be bold.
> i think my command is not doing anything.
> I do not wish to reencode - but simply trim off the bottom.

That is not possible. Filtering is applied to decoded raw video frames,
so decoding and reencoding is required.


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