I need to rescale several videos. What is the best way to do that without recoding the entire video, but maintaining quality? I have tried "ffmpeg -i <src.xxx> -s WxH src_new.xxx" where 'W' and 'H' are the new width and height. I try to keep the same aspect ratio as the original. When I do this, the new video is much poorer quality. TIA. Any help greatly appreciated. ken
