[FFmpeg-user] Crop 4K Video into Four 1080p Videos?

Clay D. Montgomery clay at montgomery1.com
Mon Jun 26 21:28:22 EEST 2017


     I'm wondering if it is possible to use ffmpeg to slice 4K video 
into a set of four 1080p videos and do it without scaling.

I have experimented with using the -s size option before the input, but 
I have not found a way to offset the position for cropping the video.

This also might require rotating the output videos by 90 degrees.

I would appreciate any advise on this.

Thanks, Clay

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