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16th August 2012, 00:09 | #1 | Link |
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New video-compression (HEVC) twice as efficient as current standards.
Don't think this has been posted, but a The Moving Picture Experts Group (MPEG) has met to issue a draft international standard of a new video-compression format called High Efficiency Video Coding (HEVC) that is twice as efficient as current H.264/AVC standards.
Links Below: http://www.ericsson.com/news/120814_mpeg_244159018_c http://stevencrowley.com/2012/08/14/...es-efficiency/ Last edited by Seraphic-; 16th August 2012 at 00:18. |
16th August 2012, 04:44 | #2 | Link |
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Won't be out for a while. One of the issues is that HEVC will require much more processing power than H.264 to achieve the stated benefit. H264 will be around for a while yet!
That said, it's always good to know something new is around the corner, and this will come in very handy for future high definition standards beyond 1920x1080. |
16th August 2012, 05:02 | #3 | Link |
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The devil is in the implementation. Even if the standard is formally completed in the next year or so, I'd be quite surprised if we see really good encoders and wide support within 3-5 years. The industry invested heavily in MPEG-2 in the mid-late 90s, mainly to support digital transmission in SD. They again invested heavily into H.264 in the mid '00s, mainly to support big deployments of HD. That being said, there's still TONS of MPEG-2 around.
I'd say mid to late '10s would be a reasonable time to expect mature HEVC based standards (in the sense of ATSC / DVB-S2 scope standards) to become reasonably commonplace. The question is, what will drive HEVC adoption? UHDTV doesn't seem like it will catch on any time soon, 3D is handled reasonably well by H.264, and current systems are "good enough" for most purposes. Unless broadcasters have a strong desire to reduce bitrates to increase channel counts, I have a hard time seeing a big push towards a new standard - especially considering the massive infrastructure built around MPEG-2 and H.264. Oh yeah, and of course HEVC is massively more computationally expensive. Derek
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16th August 2012, 05:30 | #4 | Link |
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I think we discuss it partially @ http://forum.doom9.org/showthread.php?t=165596&page=2
Although it is good we have a separate thread for it. Some news site state a total of 500 patents designed for HEVC. I always wondered how much more expensive it is to buy out all the HEVC patents then 160 million for vp8. Someone state HEVC is not H.265, while Wiki refers to both. Which is correct? I was reading CABAC for HEVC is actually computationally less expensive then H.264 CABAC. What could theoretically means main profile to be better suited for mobile usage? Although i am not sure if the efficiency is worth the implementation effort on both hardware and software. As most of today Mobile H.264 usage are still stuck at wither Baseline ( o.O ) or Mainline profile. Then we need x264 devs or some other teams to develop a decent encoder for it. Since x264 codebase could be adopted for x263 and xvp8 i wonder if xhevc is theoretically possible. |
16th August 2012, 06:47 | #5 | Link | |
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16th August 2012, 08:59 | #7 | Link |
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By the time HEVC becomes usable, computational requirements won't matter because processing power will be so much more in the future.
Exactly the same as when H.264 standards were introduced. Everyone complained it was so slow and required so much extra processing power (over MPEG-2, MPEG-4). And yet 8 years later we all thoroughly enjoy x264. It honestly wasn't that long ago that all but a few extreme processors could process HD material in real-time with H.264.
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16th August 2012, 09:19 | #8 | Link |
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@Audionut: This is definitely true when we're talking about software encoding and decoding on things as beefy as desktop PCs and servers. Embedded hardware is another story altogether. There's a whole lot of MPEG-2 and H.264 set top boxes / IRDs out there!
I'm not doubting that we'll ultimately all be using HEVC. It's just going to take a long time.
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16th August 2012, 09:43 | #9 | Link | ||
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It was all MPEG-2/MPEG4-part 2. And everyone complained because it required to much processing power, and there were no devices that support it for years. Quote:
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16th August 2012, 09:56 | #10 | Link | |
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It is no different to h.264 and AVC (Mpeg 4 AVC/MPEG-4 Part 10), just h.264 is the 'winning' name. I guess it sounds better than saying Mpeg-4 Part 10! This was also designed by the same consortium, with h.264 being the ITU-T name and the MPEG 4 Part 10/AVC name the MPEG name. |
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16th August 2012, 12:05 | #11 | Link | |
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i actually posted this on the news area but the post is not yet approve blehh
but here is what i posted for more references Quote:
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16th August 2012, 12:15 | #12 | Link | |
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The correct version is what MPEG says.
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16th August 2012, 14:20 | #14 | Link | |
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16th August 2012, 18:09 | #15 | Link |
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Not quite true, but HEVC and h.265 are both correct. Different consortiums working together, different name for the same thing like I said earlier. Like with AVC and h.264, and people calling it h.264, the ITU-T designation h.265 is probably the name that will be more common.
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16th August 2012, 21:33 | #17 | Link | |
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17th August 2012, 17:50 | #18 | Link |
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I suspect HEVC will be implemented far quicker than h.264 was because web streaming and paid movies/tv shows is a huge business now so there are massive cost savings for this. Also Mobile would be greatly improved with half the bandwidth being needed for video and would harm your data allowance a lot less.
I'd expect some hardware decoding to be on all desktop/laptop/netbook/tablet/phones within 2yrs of the standard being finalized. As for good quality software encoders probably 3yrs till some decent ones start to crop up. I'm more interested in Daala - the free open source video codec that xiph/mozilla are creating which will be slightly better than HEVC yet will be patent-free. |
17th August 2012, 18:38 | #19 | Link | |
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Thanks I never heard of "Daala" http://wiki.xiph.org/Daala But where did you get this "slightly better" from ? Some tests or opinion or "someone said" .... |
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17th August 2012, 19:03 | #20 | Link |
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if opus can be slightly better than aac so i see no reason that people who are behind x264 could not create free alternative to h.265. with proper finacial support from google they may create something alot better than crappy vp8 codec.
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