#FFMPEG CROP BLACK BORDER WINDOWS#

#FFMPEG CROP BLACK BORDER WINDOWS#

If you were using a Unix shell (I believe this is what MacOS uses), you could use a for loop to convert all videos in a directory: for V in * do ffmpeg -i '$V' -c:v libx264 -filter:v crop='in_w:in_h-60:0:30',pad='in_w:in_h+60:0:-30' 'padded-$V' doneīut I'm not sure what the equivalent is using the Windows command prompt.Įdit: Windows command prompt has a for loop as well. It may be wise to list the streams in the filter arguments: -filter_complex 'overlay' The other option, as I think was pointing out, is to create a PNG image the same dimensions as your video with black bars at the top & bottom, & transparent in the middle, then overlay it onto the image: ffmpeg -i video.mp4 -i overlay.png -filter_complex 'overlay' -c:v libx264 'out.mp4' Otherwise, it will just add 60 pixels to bottom. Leave the X offset at 0 & set Y offset to -30 so pixels are added at top & bottom. Add 60 black pixels back to the vertial dimension ( in_h+60). Use in_w again to preserve horizontal dimension. In the pad filter, the in_w & in_h variables will be whatever is output from the crop filter (you can just replace these with the actual video dimensions if you prefer). Otherwise, it will just crop 60 pixels from the bottom. And set the Y offset to 30 so that 30 pixels are cropped from the top & bottom each. X offset stays at zero so nothing is changed horizontally. You want to crop 60 pixels (30*2) from the input height ( in_h-60).

In the crop filter, you want width to be same as the video's input width (you can use the variable in_w). You can do it with a combination of the crop & pad video filters: -filter:v crop='in_w:in_h-60:0:30',pad='in_w:in_h+60:0:-30'īoth filters use the same format: width:height:x-offset:y-offset

Ffmpeg crop black border