FFMPEG - Crop Video
The following command will crop your video to the left side of the video using the first 1920 x 1080 pixels. This is useful if you accidentally recorded two 1080p monitors and just want the left one.
ffmpeg \ -i input.mp4 \ -filter:v "crop=1920:1080:0:0" \ output.mp4
The following command will keep the right monitor (assuming 2 x 1920 x 1080p monitors)
ffmpeg \ -i input.mp4 \ -filter:v "crop=1920:1080:1920:0" \ output.mp4
Obviously change the 1920 and 1080 to your screen resolutions, and the last two numbers are the x/y coordinate to crop from.
First published: 4th March 2020