[FFmpeg-user] How to crop block borders from top and bottom using ffmpeg

[diljit singh]

Hi Roger,

I'm little new to ffmpeg. I used following commands using crop, but for all
commands, i'm getting similar message " unable to find suitable output
format

1. ffmpeg -i input.mp4 crop=1280:700 -y output.mp4
2. ffmpeg -i input.mp4 crop=in_w-2*10:in_h-2*20 -y output.mp4

Please give me one working example. That will be of great help.

Regards
Diljit singh

On Thu, Oct 4, 2012 at 7:37 PM, Roger Pack <rogerdpack2 at gmail.com> wrote:

> > How to crop black borders from top and bottom of video using top and
> > bottom. Actually I'm using a 16:9 video which I want to convert in to 4:3
> > while retaining aspect ratio. So, first I would like to remove borders
> and
> > then convert the file back to exact size and then add enough borders to
> > make it 4:3. Please advise.
>
> http://ffmpeg.org/ffmpeg.html
> search for "crop"
> :)
> -r
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