Isn't there already DRM that works by encrypting the video stream and only decrypting / decoding the video stream on the TV? Or at least, in some sort of closed-off execution context?
I'm thinking of Widevine level 1 DRM, for example. If I remember correctly, it mandates that all of the decryption has to happen in a "Trusted Execution Environment", which seems to mean a hardware enclave. I think this effectively locks the user out of the whole decryption phase, which means that you don't get to record your screen.
I might be wrong about this, though. Might have to do a little research.
Yes that is indeed a problem. But it's more prominent in the streaming platforms netflix et al. The encrypted widevine stream can still be captured though and AFAIK if any of the hardware leaks the decryption keys it's easily recovered. YouTube will hopefully never implement a DRM solution - it would lock out a lot of older clients that simply do not support it..But in any case you can still record stuff with your phone by simply recording with the camera if you must.
Until HW decryption is cracked, there may just be more camera-captured content or content recorded from modded display panels. If they want to prevent copying their content, why they are even publishing it? They can keep it for themselves. They either want us to see it or not.
By making it difficult to archive videos I am starting to see more and more low quality screen captures being shared (e.g. on social platforms). A screen capture of a phone camera-recorded video of a phone-recorded TV screen where it is barely possible to understand the spoken words of the actors. That is pretty sad to see in this technologically-advanced world.
I'm thinking of Widevine level 1 DRM, for example. If I remember correctly, it mandates that all of the decryption has to happen in a "Trusted Execution Environment", which seems to mean a hardware enclave. I think this effectively locks the user out of the whole decryption phase, which means that you don't get to record your screen.
I might be wrong about this, though. Might have to do a little research.
(Funnily enough, just looking for information right now turns up this https://news.ycombinator.com/item?id=21307308 HN post, which does contain some interesting information)