Hi I am trying to follow this mini tutorial and I can detect image and replace it with my 3d Object which is in AR Session Origin tracked image prefab. But when I try to add Video Player instade of 3d object to my AR Session Origin tracked image prefab, nothing happens.. I was using Unity 2019.2 and I was getting error when I try to put video player, then I search about it and Unity fixed that issue on 2019.3 so I am now using 2019.3 and I didn't get error anymore but also there is nothing on screen when image detected. Am I missing something ? Any advise ?
May be your not doing wrong if you not getting any error , did you check AR Foundation samples ,
check it i am sure there is example of video player , make prefab and add that prefab as instantiate object on target image.
if you still getting issue let me know i will make helping video for you.