Q: mac airplay safari video

Hi androne,

While no list exist for what is compatible, you do have some troubleshooting options to look over if a video is not playing properly. I do know that if it is iTunes Store content, then that content will need to specify if it can be played via AirPlay. Take a look at the article below to help you out. 

Get help with AirPlay and AirPlay Mirroring on your iPhone, iPad, or iPod touch
https://support.apple.com/en-us/HT204291

Have a good day.