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I already just use screen capture recording to take videos in my desktop playing YouTube on a browser. Could they even stop that?
Yes: https://en.wikipedia.org/wiki/High-bandwidth_Digital_Content_Protection
This is different, and doesn't address screen recording.
It would stop someone from playing DRM content to an unauthorized TV, but does not mention anything about screen recording your own device. There are some built in protections for preventing an application from being recorded but I have no doubt there are bypasses
Maybe I'm not following but this seems to be talking about applications communicating with hardware designed to be authorized to play.
How would a video playing on a browser like YouTube on my existing, old hardware be able to parse what's authorized? Short of making YouTube a program on my computer, how does it on a browser know what else I'm running?
For example: Netflix run on a browser, but it only sends you encrypted data, you need to enable your browser's DRM setting to decrypt this data. For HD content, it uses L1 Widevine that only works on Secure Boot enabled and TPM enabled Windows installation. So the decryption runs in the secure element, then data displayed on your screen. I'm no expert but its designed in a way that makes screen recorders unable to capture the video, resulting in a blackscreen.
If you try to play it on Linux, it reverts back to L3 Widevine which only for netflix they only allow SD content to run with L3 Widevine
Of course you can use an actual camera to record the screen, but then its a degraded image.
So Youtube could theoretically enforce L1 Widewine on every video, if they wanted to.
I guess I'm still not following how if I'm using say the nvidia geforce screen recording software which is capturing the display of my screen how the browser knows. Since the browsers has already gotten the image and displayed it and the recorder is recording the display instead of, intercepting (I suppose is the best word) the data before it is displayed.
I mean that's what DRM stops...
You can't record it, its just a blackscreen...
You can try it. Or Try asking a friend/relative to screenrecord their netflix... its just black
I mean unless you literally take out a camera to record it... but then the video quality degrades since you aren't gonna get a 1:1 from making a videotape of a screen.
It is often the graphics hardware blocking it in this case.. disabling hardware decoding in the browser may 'help', if your CPU can handle it (you can still use hardware encoding, tho)
From a quick google search, seems like you can disable hardware acceleration to record with OBS. Or you can use other dedicated software. And thats not even covering the bypasses that can likely be done on Linux
To add, you could always capture via the output video too, regardless of the DRM nonsense. Once it leaves the device in a format a display can present it, any device that can utilize that signal can record it.
There's always a million ways to skin the cat.
This is what i figured, so long as you can output to a generic non drm enabled monitor like a VGA, you can just feed it back into a digital capture device. It might take some work / bandwidth to do it much faster than 1:1 time, but it just needs one person to do it once. In likelihood there's a software way to do it perhaps with the right hacks to a display driver.
Nope
....and nobody wants that.
So what are you trying to tell?
Netflix being an application that is running on a TV seems like a very different situation than a video playing inside of a browser. How exactly would YouTube know or be able to stop screen recording short of forcing me to actively run a program?
The browsers implement the DRM protections. It will be black if you try to record.
idk how they do it, but browsers have DRM built right into it, you can play a stream from netflix but if you try to record it, its just a blackscreen...
Youtube could implement the same thing... I mean Google literally made Widewine
Also, apparantly you also need Secure Boot and TPM enabled to get the full HD content, otherwise it runs on Widewine L3 instead which only displays content in Standard Definition... not HD.
You can also run Netflix in a browser