Resize video to 720p
video filters
// shell
$ ffmpeg -i input.mp4 -vf "scale=-1:720" output.mp4$ ffmpeg -i input.mp4 -vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:-1:-1" output.mp4$ ffmpeg -i input.mp4 -vf "scale=-1:720" output.mp4$ ffmpeg -i input.mp4 -vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:-1:-1" output.mp4