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Old 22nd December 2010, 09:14   #1  |  Link
Dyomich
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MSU MPEG-4 AVC/H.264 2011 Video Codec Comparison - CALL FOR CODECS

Dear video codec developers,

Moscow State University Graphics & Multimedia Laboratory
starts next seventh annual H.264 video codecs comparison.

New this year features:
  • Videoconference Encoding Analysis
    Due to the fact that videocoference encoding has some specific
    that is quite different to transcoding tasks we plan to perform
    special analysis for videoconference encoding.
  • New Metrics
    We will use new objective quality metrics MS-SSIM and 3-SSIM
    in addition to classical SSIM and PSNR.
  • GPU Analysis
    This year we want to add GPU-encoders analysis to the comparison.
    For this analysis we plan to use top GPU, e.g.
    NVIDIA GeForce GTX 580.
  • HRD Compliance
    We consider the possibility to perform HRD compliance test for
    video codecs that support this feature.
  • Transcoding Analysis
    Also we want to propose developers to take part in special
    additional testing mode - transcoding analysis.
    Developer sends us a pair (MPEG-2 decoder + H.264 encoder)
    and we will test it for transcoding use-case we will take
    MPEG-2 source video sequecnes to encode
    them with H.264 encoder.

Important Dates
February, 1 - Deadline for receipt of a H.264 codec with presets
February, 14 - Deadline for settling technical problems with codec
March, 15 - Report's draft will be sent to all participants
March, 22 - Deadline for reception of comments to the draft
April, 7 - Comparison report release

The full text of Call for Codecs is available at
http://compression.ru/video/codec_co...codecs_11.html

Variants of Participation
There are two variants for companies to participate in our comparison:
  1. Participation for free. All results of your codec will be
    published, except special cases of measurements
    problems due to codec instability.
  2. Private participation. A special report will be prepared only
    for your company. This report contains:
    • Your codec results and all material from the free version
    • Special additional analysis of your codec

If you are interested in the private participation,
please contact us for details.

Useful Links
-----
Best regards,
Dr. Dmitriy Kulikov,
Moscow State University (MSU)
Graphics&Media Lab
Videocodec Testing Team
videocodec-testing@graphics.cs.msu.ru
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Old 26th December 2010, 22:33   #2  |  Link
kieranrk
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Quote:
Originally Posted by Dyomich View Post
[*] HRD Compliance
We consider the possibility to perform HRD compliance test for
video codecs that support this feature.
I would argue there isn't such thing as "HRD compliance". It's more of a case of whether a particular analyzer doesn't complain that a file is not compliant.

(In my opinion Pengvado was right not to allow a HRD patch in x264 for many years since compliance is a totally arbitrary concept)

I think you should check VBV compliance instead.

Last edited by kieranrk; 2nd January 2011 at 03:32. Reason: Expanded a bit
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Old 23rd May 2011, 15:14   #3  |  Link
IgorC
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http://compression.ru/video/codec_comparison/h264_2011/
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Old 24th May 2011, 02:27   #4  |  Link
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Is this a joke they didn't compared Nvidias GPU Encoder ? i mean even a ex MSU guy is working on that geez, and didn't they said if we dont have at least 3 GPU Encoder we wont compare GPU Encoder @ all ?

Though nothing new http://forum.doom9.org/showthread.ph...94#post1477694
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Last edited by CruNcher; 24th May 2011 at 03:46.
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Old 24th May 2011, 11:10   #5  |  Link
nm
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Quote:
Originally Posted by CruNcher View Post
Is this a joke they didn't compared Nvidias GPU Encoder ? i mean even a ex MSU guy is working on that geez, and didn't they said if we dont have at least 3 GPU Encoder we wont compare GPU Encoder @ all ?
Maybe they tested it but didn't get permission to publish the results. Wouldn't be surprising, considering how the MainConcept CUDA encoder fared.
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Old 24th May 2011, 14:41   #6  |  Link
mandarinka
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It's in the pdf. Page 99 and further (in the free to download pdf).

Last edited by mandarinka; 24th May 2011 at 14:51. Reason: clarification
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Old 24th May 2011, 15:06   #7  |  Link
nm
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Originally Posted by mandarinka View Post
It's in the pdf. Page 99 and further (in the free to download pdf).
MainConcept's CUDA encoder is there, not others. CruNcher wanted to see nvcuvenc results.
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Old 24th May 2011, 22:39   #8  |  Link
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Too bad QuickTime wasn't included, I'd like to see how it fares compared to a recent build of x264
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Old 25th May 2011, 01:38   #9  |  Link
Blue_MiSfit
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If I was Apple, I sure as hell wouldn't want anyone doing proper testing of my H.264 encoder!
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Old 26th May 2011, 09:43   #10  |  Link
CruNcher
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Quote:
Originally Posted by Blue_MiSfit View Post
If I was Apple, I sure as hell wouldn't want anyone doing proper testing of my H.264 encoder!
HiHi

Quote:
Originally Posted by nm View Post
MainConcept's CUDA encoder is there, not others. CruNcher wanted to see nvcuvenc results.
Yes that was what i meant, sad that there is also nowhere a reference about which Cuda Encoder was tested from Mainconcept (settings,version)
just a -> MainConcept H.264 (CUDA based encoder) <- that's not much if they said Mainconcept Provided us with the latest High Profile Encoder it would be clear but this way it could be also just the Main Profile encoder, without adaptive b-frames, no 8x8dct (FreXt), no hadamard, no weighted prediction ?
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Last edited by CruNcher; 26th May 2011 at 11:48.
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Old 5th June 2011, 02:57   #11  |  Link
henryho_hk
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I am afraid XviD encoding parameters (if anyone cares) are not well selected.

In my own SSIM tests of SD size, XviD 1.3(.1)'s "-qpel" is always counter-productive under "-qtype 0 -vhqmode 4". Only when under "-vhqmode 1" and within a certain "mid" bitrate range (40 to 70 under Teegdeck's comp-test), "-qpel" produces a slightly higher SSIM (but probably not high enough to justify the speed impact). Further, under a low bitrate situation (15 to 35), we should use the "EQM v3 LR" custom matrix (without -qpel).
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