I need to rotate some movies by 90 degrees. I can remember a great old Windows app called Windows Movie Maker which is discontinued for some reason and it perfectly hit my needs. It produced a rotated movie with pretty the same quality although the output file's size was smaller than original one with no complex analysis of bit rates, audio codecs and so on.
Now I am looking for a similar solution on Linux. I tried to rotate my movies with ffmpeg or openshot but I got no rewarding results. I would like to keep my movie's quality and change the resolution accordingly, i.e from 1280x720 to 720x1280. Is this possible with some easy action? I suppose the file size should be pretty much the same after that...
Best regards