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by dns_snek
1039 days ago
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> but from user perspective it's not a huge change on modern CPUs as most have specialized instructions to handle decoding of H264 There are no "instructions to decode H264", there is dedicated hardware acceleration like Intel QSV and AMD VCN, but these gets bypassed just like Nvidia's decoding acceleration from my previous example. All of this is trivially observable, playing back DRM-protected video wastes an obscene amount of resources, relatively speaking. From user perspective you'll notice stuttering, unusually high CPU usage, dropped frames and more, especially once you try to play multiple videos at once. > There are no "Techniques to bypass it", the only way currently to get L1 streams is to use legit hardware keys from some devices That's exactly what I meant. Being pedantic over my choice of words isn't very productive. |
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For L3 you are just using SIMD/vector instructions compiled for specific platform, so they are specialized CPU instructions (not general use) that help with decoding. And L3 is mostly now 720p and 1080p low bitrate on majority of streaming services that people use, you would need to have VERY old hardware to not be able to use it. I've been watching 720p/1080p h264 videos 15 years ago with only CPU decoding without ANY issues, most of the world did. So that's just not an issue. If we are talking about L1 then you have hardware acceleration so your point is invalid in that case.
> From user perspective you'll notice stuttering, unusually high CPU usage, dropped frames and more, especially once you try to play multiple videos at once.
Yeah because 99% of people are playing multiple widevine videos at once on their 20 years old hardware... come on.
> That's exactly what I meant. Being pedantic over my choice of words isn't very productive.
Im not being pedantic, you are not bypassing a lock in a door with a key, don't you? "Hey honey lets bypass our neighbour door lock using his key so we can enter his house" No one says things like that. If you meant what I meant then you just used wrong words to describe that. Your choice of words have different meaning which isn't very productive.