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Sony Playstation Meeting September 7 2016 [PS4 Slim, PS4 Pro, Rumors, Speculations, and News]
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In hindsight, if MS had learned PS4 Pro doesn't support UHD BD, they might not have included UHD BD and H.265 decoder in Xbox One S which can be a burden in its BOM. As for UHD BD, if PS4 Pro had it, mass production of the required components could reduce its cost, but it won't happen for some years. After all the purpose of the base PS4 Slim is to be as cheap as possible, just like cheap Android smartphones under $100 could penetrate African markets.
It isn't. Per Stacey Spears, who was part of the team who worked on the software codecs in the Xbox One, they tried to implement a hybrid decoder that used both the CPU and GPU to decode 4K Netflix streams but were not able to get satisfactory results. And even if they did get it to work it would have used a *lot* of power, and generated a lot of heat, during playback.
Is that not what the Pro is for?
Thats not the point. If the PS4 slim and fat can do it and they are not been updated for 4k streaming deliberately just so that "Pro is for that purpose" then all PS4 should be for that purpose except for content that they dont have the means to like 4k gaming.
I am not saying that the PS4 vanilla can or cant do it since this is something I do not know. But just saying...
D
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Not with the CPU, but a GPGPU solution could definitely do it. At the cost of consuming as much power as a AAA game, though.
It would have generated a lot of power compared to H264 decoding, but I don't think they wouldn't be able to get it running using GPGPU.
IMO, there's really no reason why 4K H265 video decoding couldn't be parallel enough to take almost full advantage of the Xbone's 1.2 TFLOPs FP32.
IIRC, Intel's Broadwell can do 4K H265 using GPU+CPU, using much smaller GPUs. Sure there might be no practical interest in making it possible (neither the original xbone or ps4 have HDCP2.2 anyways), but I'm pretty sure it would be feasible for the current-gens.
Tkumpathenurpahl
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Haha, this decoding talk reminds me of the start of the last generation when my PC was too feeble to even play HD videos of games that were being rendered in real-time on relatively tiny machines.
My little knowledge (and shoddy memory) about video codecs is that h.265 has better, more flexible slicing, which means decoding is better suited for multi cpu decoding. Which probably means that GPGPU also is suited quite well for the job, no idea if the power usage would increase.
But the output to the television in regards to 4k, do you not need hdmi 2.0 to do that?
But the output to the television in regards to 4k, do you not need hdmi 2.0 to do that?
Well we were having a similar discussion back in the day about PS3's ability to output stereoscopic 3D, which if I recall required a higher HDMI standard than the one it had, but it eventually had the means to do it.
I am not sure if this can be the case for PS4 as well. But if it the power usage would increase, is that necessary a problem? The console wont be doing anything else but stream the video when running Netfilx or Youtube at 4k. The console already puts into suspend mode any other application when running a video app
Decoding and being able to output is only part of it.
The other bit is hdcp level required by the streaming services like Netflix.
hdcp is the security aspect.
Even if it's technically possible, that doesn't mean it's desirable, especially if it means your ps4 sounds like it's running rocket league while streaming from Netflix.
What if they only decoded every other quad of pixels, and interpolated the rest? I'd call it, checker-board decoding. It's been said enough times it looks as good as tge real thing...
Almost certainly, did the 360 not output DVD and HD DVD via component and vga, analogue output with no hdcp at full resolution no less.
I assume then it's on the end device to comply with extending the chain of security to the display, they could disable it just as Sony did with games on PS4 which initially had hdcp applied.
even if that was the case for hdcp 2.2, which I don't believe it is.
do you think Netflix etc would allow that platform to stream their stuff without hdcp security? Don't see it happening especially for 4k content
Does not compute, since HDR will be supported on slim and fat with a fw upgrade...... Is it the combo of 4k and HDR that does not work over HDMI 1.4, then?
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