I have an mp4 file that will not play on my linux VLC (it stutters & freezes) but it plays fine on windows. A different mp4 plays fine. So the problem must be in the Linux support for the codec of this particular file. How can I find out what codec is used in this mp4 file?
mediainfo file.mp4
or
ffmpeg -i file.mp4
(also vlc should have info window somewhere)