[Suggestion] option to crop and/or to zoom the video before the flip-book is created

Question

[Suggestion] option to crop and/or to zoom the video before the flip-book is created

Wikinaut opened this issue 8 years ago · 3 comments

option to crop and/or to zoom the video before the flip-book is created

Answer 1 · 2016-06-06T17:08:23.000Z

The following stand-alone command uses ffmpeg and the crop filter.

Source: https://video.stackexchange.com/questions/4563/how-can-i-crop-a-video-with-ffmpeg

ffmpeg -i input.mp4 -r 25 -vf "crop=600:400:300:150" -r 1  cropped.mp4

Answer 2 · 2016-06-13T11:35:16.000Z

I think a feature like the one you supposed will violate the KISS principle. Wouldn't it be better to stick to common video editors to accomplish cropping or zooming?

Answer 3 · 2016-07-12T17:21:16.000Z

If you need to rotate a smartphone video in "portrait" orientation and when you want to crop something from mid area, then use this example as preprocessor

crop and rotate a smartphone video from 1280x720 portrait to landscape

ffmpeg -i in.mp4 -filter:v "crop=550:720:500:0,transpose=1" -c:a copy out.mp4