this post was submitted on 21 Oct 2024
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No Stupid Questions

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Are they breaking Widevine? Are they circumventing it? If the end result is an analog audio signal and (a ton of) RBG on/off signals - why can't I as a normal consumer capture it using some store bought gyzmo?

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[–] [email protected] 37 points 3 weeks ago (12 children)

Basically, media cannot truly be DRM because: (1) it ~has to be converted into data that screens and speakers can display (2) ultimately if it's fetching widevine encryption keys, those keys are somewhere in your device and can be retrieved

So yes, you can do it. A "capture card" is such a "gyzmo" — but often, you can just rip using software, i.e. record the decoded stream

[–] [email protected] 28 points 3 weeks ago (10 children)

To put it another way:

  • If you want to see something it has to be clear (unencrypted)
  • If you want to see something on your computer it has to be on your computer
  • You can control your own computer

Therefore, any media that is viewed on your computer is clear, on your computer, in a realm that you control.

This is also why ad blockers work. You can send me ads, or requests to fetch ads and my computer just ignores them.

Companies will never be able to stop this, cause at some point you can always just intercept the data feed at a hardware level and reconstruct the stream.

[–] [email protected] 5 points 3 weeks ago (6 children)

I might be asking a dumb question, but why can't the companies host their ads on the server-side? Do the ads have to be on my computer for me to see them? What does being on my computer even mean in this context?

Sorry if this is a stupid question

[–] [email protected] 10 points 3 weeks ago (1 children)

Some do. YouTube switched their ad service so the main video and ads come from the same server. To get around this uBlock now blocks the script on the browser side that shows the ad, then returns a signal that the timer is up.

It's a constant game of cat and mouse to get around ad blockers then block that new method.

[–] [email protected] 2 points 3 weeks ago

I don't think the new strategy of injecting ads directly into the video stream can be defeated in realtime though. It's like how you cannot defeat tv ads...you can blank the screen, or record and restitch without the ads, but the content itself has the ad. YouTube is a bit different where you can theoretically skip ahead, but your device has to tell Youtube that it wants to skip ahead in order to actually even get the video content, and youtube can look at request timestamps to know you didn't see the whole injected ad and just re-inject it in the video stream.

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