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Old 13th September 2008, 16:04   #1  |  Link
the Mad Duke
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On2 VP8

Did anybody get to beta test it? I don't see a personal use version on their site. I hope they release one.
http://www.on2.com/docs/graf/splash_on2.html
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Old 13th September 2008, 18:00   #2  |  Link
nm
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Looking at the sample clip, it's interesting how they got x264 output to look like MPEG-4 (A)SP with all that macroblocking and somewhat annoying keyframe pumping. Would be nice to see the settings used. VP8 output on the other hand looks pretty much like x264 a year or two ago (without AQ and Psy RDO).
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Old 13th September 2008, 18:08   #3  |  Link
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"...VP8 50% better than h.264" Hahahaahahah Good joke. Besides PSyRDO shows that in fact PSNR value is USELESS!!!!
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Old 13th September 2008, 18:36   #4  |  Link
nm
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Quote:
Originally Posted by Atak_Snajpera View Post
"...VP8 50% better than h.264" Hahahaahahah Good joke.
Note that they only claimed up to 50% less data / fewer CPU cycles, which could also be "25% worse most of the time" in real world scenarios
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Old 13th September 2008, 18:37   #5  |  Link
e-Pawel
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Quote:
Originally Posted by Atak_Snajpera View Post
"50% better than h.264"
That's what already VP7 was claimed to be... yeah in deed, good joke
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Old 13th September 2008, 20:34   #6  |  Link
Dark Shikari
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Indeed, a good joke. VP7 was slower than H.264 and significantly worse quality than VC-1 in most of my tests (let alone H.264), so VP8 will likely be equally a joke.
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Old 14th September 2008, 02:21   #7  |  Link
IgorC
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3 years ago On2's devs made everything possible for that VP7 could compete with x264 (revisions 2xx). They constantly were updating their codec from VP7.0.0 to VP7.0.9.
I hope On2's devs will try to do the same for vp8. Of course now VP7 has no chance to be comparable to x264. Since then there was only misc. update vp7.0.10.

I think the most important problems that VPx codecs have unstable local quality while overall quality isn't bad. VP7 has a problem with scene change. Key frames are highly quantized and rest of sequences recover details in temporal sequence. As a results there is no constant quality. Another issue is too strong deblocking filter. It's good only for very low bitrate.

To compete with x264 they must plan long time development to achieve solid and well tuned codec.

Just my opinion.

And good luck for a small company On2. They aren't MS to spread millions for VC-1 and they must face big standard.

Last edited by IgorC; 14th September 2008 at 02:24.
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Old 14th September 2008, 05:41   #8  |  Link
Sagittaire
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Quote:
Originally Posted by Dark Shikari View Post
Indeed, a good joke. VP7 was slower than H.264 and significantly worse quality than VC-1 in most of my tests (let alone H.264), so VP8 will likely be equally a joke.
I don't think. VP7 was excellent codec.
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Old 14th September 2008, 07:26   #9  |  Link
Dark Shikari
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Originally Posted by Sagittaire View Post
I don't think. VP7 was excellent codec.
By excellent you mean it decoded slower than ffmpeg's H.264 decoding did... using a 2004 build of ffmpeg?
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Old 14th September 2008, 10:28   #10  |  Link
Tagert
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Big claims indeed
Wonder when they will be able to back it up by releasing their awesome codec
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Old 14th September 2008, 11:01   #11  |  Link
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Bond : golden frames are indeed like references in h264, but limited to 2 references max : the previous reference, and another one, that can be updated whenever they want. It seems it can be updated piecewise too, which makes it a bit more flexible than 2 references with h264. As for the usefulness of that, I don't know. It must help in some contrive cases, but beyond that... In any case, it will help less than bframes & bpyramids would, but they can't use those because they are afraid of patents (though bframes should be patentless by now, I think).

Their description of their loop filter and its adaptivity to motion doesn't impress me. h264 loop-filter also adapts to motion (though the way it adapts to motion seems different from VP8's).

Their visual results for h264 seems a bit strange, since I seem to see a good old IDCT mismatch drift during the GOP, which can't happen with AVC. As stated by nm, it more looks like ASP than AVC.

As for the PSNR curves, they must always be taken with a (huge) grain of salt, wherever they come from. Since they don't say which encoder and which settings are used, however, the curve most probably are correct. They just don't mean anything and can be ignored.

Dark Shikari : sagittaire is right, when it came out, VP7 was lighter than existing AVC decoders, and more than hold its ground quality-wise. Our encoder, at that time, only managed to consistently beat it when we included High profile.
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Old 14th September 2008, 19:52   #12  |  Link
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Yeah about the PSNR results they dont say alot tough for H.264 basicly with inloop deblocking it means higher PSNR and most times looks awfull tough with VP8 it doesn't have to be the same because they use a complete different deblocking aproach which seems really interesting , though 50% is a heavy claim thats like they wanted to say: "hey look we drove ahead of MPEG before they even get started with H.265"
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Old 15th September 2008, 23:35   #13  |  Link
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Wonder if they will go to VFW?
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Old 16th September 2008, 02:06   #14  |  Link
Sharktooth
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i wonder if they will release a free-for-personal-use encoder.
then speculation will end...
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Old 16th September 2008, 02:28   #15  |  Link
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Originally Posted by Sharktooth View Post
i wonder if they will release a free-for-personal-use encoder.
then speculation will end...
Plus a free-for-personal-use decoder library, of course
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Old 16th September 2008, 08:58   #16  |  Link
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Maybe this also implies they gonna Open Source VP7 now
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Old 16th September 2008, 09:27   #17  |  Link
slavickas
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Quote:
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Maybe this also implies they gonna Open Source VP7 now
well they promised to release VP4 as open source and it never happened ( big IINM )
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Old 16th September 2008, 09:58   #18  |  Link
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VP4's decodable in ffmpeg, yes no? As is VP5, yes no?
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Old 16th September 2008, 16:19   #19  |  Link
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Quote:
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VP4's decodable in ffmpeg, yes no? As is VP5, yes no?
Most likely this is thanks to the reverse engineering capabilities of the ffmpeg developers, not thanks to On2...
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Last edited by LoRd_MuldeR; 16th September 2008 at 17:16.
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Old 16th September 2008, 14:43   #20  |  Link
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i think they missed all the trains, at least i can't see what could happen, even if they would develop the world-best-codec.
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