Just speaking broadly, 10bit HEVC is more demanding than 8bbit. It's to fix certain features and such within a video stream to be compatible with certian decoding capbilities. This is even why these video formats have feature/spec specific tiers, levels, and profiles. Even within a single format, you can have features that are enabled or disabled to make it more or less complicated. 4K h.264 or 4K HEVC? There are MASSIVELY different computational demands between decoding the two.
What kind of 4K? I've seen a lot of people talk about '4K' without understanding that it is just a resolution. Phenom ii x4 at 3,2Ghz can do a single 4k 20Mb/s real time encoding. Toss in some quick sync support with Kaby Lake and up, and you wouldn't even need a dedicated GPU to do it. That way, the CPU is just serving up the content and offloading the hard stuff to the video card. I am thinking, as those technologies develop, and we get so GPGPU processing tossed into the mix, a simple video card upgrade that can be offloaded to it that can handle this natively would do the trick. I know HDR on PC is pretty much in its infancy, that's for sure. Thank you for the awesome post, by the way. There's a ways to go there.īasically all of my HEVC 4k content is 'samples' built for demo/stress test purposes except one UHD BD rips, so it's hard to say what most 4K video content will all really be like once I have a 'practical' need. Kodi currently has no real support for HDR and Rec2020 so it can't even properly playback the colors or integrate with the OS/hardware's HDR output functions yet. Kodi requires a 64bit build to do adequate 4K HEVC decoding at all and the Windows 圆4 build of Kodi isn't even in 'Alpha' status really, it's just in nightlies, so it could be improved. FFMPEG being in constant development can see progressive improvements in how efficiently it decodes content. Even with The Smurfs 2, an direct Remux of the UHD BD video, the i5 4590 is barely able to keep up (Though it does seem to) and that's 24hz not 60hz. The OCed 3770K barely gets the job done in the case of HEVC 10bit 60hz content and the other HTPC, using an i5 4590 comes up short with some cases.
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