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Old 04-07-2017, 08:21 AM   #71
AlbertGS
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dnavas - sorry - looks like I touched on some sensitive issues. Apologies
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Old 04-07-2017, 03:19 PM   #72
dnavas
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Originally Posted by AlbertGS View Post
dnavas - sorry - looks like I touched on some sensitive issues. Apologies
Heh, I'm just trying not to rant about work here. I do performance work, and some of the stuff I see, and attitudes I hear, drive me nuts.

You're good, no need to apologize. I'm not, and I need to keep myself out of the space where I'll need to apologize :| [At least hopefully I haven't crossed that line yet]
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1800X @3.9G, 16GB Win7 / 2950X 32GB Win10, Gigabyte GTX 970 (IXOC), dual EA275UHD, QNAP 873 (w/10GbE). Video source typically HC-X1 or Panny TM700; Audio DR-701D and Rode NT4. Edius 8.5 WG w/ Vistitle & TmpGenC.
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Old 07-04-2017, 08:58 AM   #73
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Answer is fairly simple- because it's complex process and Intel chip uses many shortcuts compared to e.g. x264 code (simpler motion search, etc). If Intel would decide to spend time to make it as good as x264 they probably would do it. Problem is that by then this chip would be specialised solution (more quality you add more power you need, more local RAM etc) and cost 5x more than CPU+GPU itself. We had/have such a solutions- like Alchemist box for 100KŁ. Intel chip is good enough for many case and it doesn't make CPU cost much higher. It's all compromise.

No need to wait for 2H BD encode whole night- there are solutions which do it in 2H for 2 pass- they just cost money as someone spent a lot of time and effort to make them working at this speed.

A lot can be done by optimising existing code, but companies are not keen on this either as programmers cost a lot of money, so yet again, everything is big compromise :) Don't expect it to change, it will rather go worse!
The 4K AVC/HEVC editing challenge is Decoding for timeline playback with a 4K hi-res preview. You can't edit with a jerky playback that drops frames.
Encoding (render) is not as performance critical and generally speaking software encoding will produce better quality - but even software encoding quality can vary depending on the encoder used by the NLE.
x264 is the best and QuickTime the worst. See table below:
https://en.wikipedia.org/wiki/H.264/...tware_encoders
I'd like to know what encoder Edius uses.

The older Intel 4000 iGPUs had quality issues with Quick-Sync (QSV) but the latest Kaby Lake Iris iGPU has improved QSV quality and even has two encoding options - one for fastest speed and a second option for best quality. Edius has not added these features yet but it will be interesting to test against software encoding quality when it becomes available. Our cameras use hardware encoding chips for high quality encoding so there is no reason why our PC hardware can not do the same.

I waited for the new X series i9s but for some strange reason Intel disabled the iGPU in the new 7740X upgrade from the 7700K - so 7700K Kaby Lake still looks like my best option for 4K editing. Has anyone of the Forum had a chance to test Edius H.264/H.265 4k on a 7700K?

Last edited by AlbertGS; 07-04-2017 at 09:17 AM.
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