Quote:
Originally Posted by Adonisds
Would a modern 8 core/16 threads processor be able to software decode av1 4k60 hdr video once the decoder is more optimized?
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Can a modern system do that for HEVC? HEVC decode is going to be more inherently parallelizable due to WPP. And I'm not aware of any software decoders that can do a realtime 2160p60 HEVC on any hardware I've looked at.
That kind of pixel fill rate is normally the domain of hardware decoders, or at least hybrid CPU-GPU implementations (like the Xbox 360 H.264 decoder).
For commercial content, the DRM hardware requirements to play UHD on a PC has always come on systems that have a 2160p60 HW decoder anyway. Since there is already a large installed base with has the DRM support bu not HW AV1, I would expect HEVC to remain the dominant codec for delivering premium UHD content for years to come.
But I believe Profile @ Level for AV1 requires some degree of tiling for UHD resolutions. Even if not required, I imagine some de facto guidelines about tiling to improve decode perf would become standard.
Parallelizing decode of Golden/IDR, I, P, B, and b frames can also be a useful technique if plenty of memory is available. You'd just do a lookahead to encode and buffer the referenced frames in tier order. That was nigh impossible with VP9, but I think is feasible for AV1.