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23rd March 2021, 22:15 | #21 | Link |
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Here's another interesting one in retrospect: https://web.archive.org/web/20141128...s/360#more-360
An early HEVC test encoder took 8 hours to encode 10 frames on a then high end system! Things have come a long way. |
24th March 2021, 08:08 | #22 | Link | |
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On the other hand, the reference encoder has nothing to do with x266 and is far less optimized, so perhaps it's not a fair comparison. Still, it makes us think: it was hard enough for monocore / early dual core CPUs when we switched from Xvid to H.264, it's been hard enough for 4c/8th CPUs when we switched from H.264 to H.265 and it's gonna be hard for 16c/32th CPUs when we're gonna switch to H.266... Thankfully, though, development went on and the CPU market improved a lot in the past few years and incredibly accelerated thanks to AMD finally being a good rival for Intel after years of nothing/delusions (I'm looking at you 6core Phoenom and 8 core Bulldozer, you were slower than a 4c i5...). Anyway on the professional side, I've just ordered a brand new server with a dual Xeon Platinum for a total of 56c/112th which should be more than enough for the foreseeable future and 8K I hope, but time will tell. |
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5th April 2021, 09:56 | #24 | Link | |
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5th April 2021, 21:56 | #25 | Link |
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Oh those were the days... Although I was more inclined towards Xvid than DivX and I've been encoding SD stuff in Xvid only during my early days when I was just a student who was translating and subtitling stuff...
Still, I guess that if something like this happened nowadays (I mean reverse-engineering closed source patented technologies, modify them and then make a brand, a company and a business from it, there would be lawsuit after lawsuit... Especially if the "targeted" company was Microsoft). Still, I wonder what happened to him too... From a quick search on Wikipedia, it looks like he founded a Company based in San Diego and made business with it, so much so that it has bought Main Concept. Those fella are very well known in Germany (and not only) for the closed source implementation of popular codecs and for the fact that they claim that their version are more parallelized than the original ones (like the MPEG-2 Encoder vs the FFMpeg one) and more complaint with the professional standards (like Sony / Panasonic XAVC and AVC Intra) in H.264 compared to the original x264 implementation... So I think (and I'm just speculating) that he's still working there... Last edited by FranceBB; 5th April 2021 at 21:58. |
6th April 2021, 17:40 | #26 | Link |
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I remember DS having written an extensive analysis of MPEG-4 part 2 ASP from her efforts trying to add psychovisual optimization to xvid. It was great! Lots of interesting insights into adaptive quantization, and the limits of the pt2's structure of having a frame QP and then allowing individual macroblocks varying by plus/minus even numbers.
I don't see it in the archive. Anyone remember it? Know where it may live? |
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