I uploaded my video to youtube and the highest resolution it appears as is 360p. This is much lower than what I uploaded. I believe that youtube isn't making higher resolutions available for my video because of its aspect ratio. The video is 720x400. How can I convert this to a different aspect ratio without losing any of the picture or picture quality? I don't care if blank space appears around the video so long as the picture doesn't get stretched horizontally or vertically.
ffmpeg has also option i.e.: -aspect 16:9