On Mon, Jun 26, 2017 at 11:58 PM, Clay D. Montgomery <c...@montgomery1.com> wrote:
> Hello, > > 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. > You need to use the crop filter. For four distinct outputs, ffmpeg -i input -vf crop=1920:1080:0:0 output1 -vf crop=1920:1080:1920:0 output2 -vf crop=1920:1080:0:1080 output3 -vf crop=1920:1080:1920:1080 output4 (I've ignored audio. The above command will transcode it. Add -c:a copy before each output to avoid that) _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".