Creating a QR code for a video is very easy with Smart QR code. You create an account at https://create-qr-code.com
You download the video you want and then select the QR code you want to use. Select the “Links” option and select media and your video. Click on ok and the QR code is linked and ready for use.
You can of course also link a youtube or another video. Then, instead of media, select the “URL link” option and paste the youtube link into the field. Click OK again and you’re done.