[x264-devel] Re: x264 improvement

champ yen champ.yen at gmail.com
Fri Mar 10 04:53:00 CET 2006


Dr. Dmitriy Vatolin:
    I have read the result. It's a amazing and great work!
    I'm glad to see that.

best regards.
Champ Yen
==
sorry for my poor English.

On 3/10/06, Dmitriy Vatolin <dmitriy at graphics.cs.msu.ru> wrote:
>
> Dear all,
>
>   I'm Dr. Vatolin, Graphics & Media laboratory of Moscow State
>   University (MSU G&M Lab VideoGroup). VideoGroup in our laboratory
>   working in area of video compression also (see for example
>   http://compression.ru/video/ls-codec/index_en.html ). Last autumn we
>   have started a small research project "x264 improvement" to analyze
>   x264 sources. Now we have first results!
>
>   We make a big amount of measurements to find where codec can be
>   improved (first of all RC of codec). Most code is very good, but
>   finally we found such place. We replaced "start_qp" predefined
>   parameter with function of target bitrate. It allows codec to predict
>   first frame size more precisely. The improvement is significant at low
>   bitrates with relatively short sequences. In our tests we outperform
>   original version of codec (sources 02.12.06) up to 2 Db.
>
>   More detailed information (including modified sources, binaries and
> examples)
>   can be found here:
>   http://www.compression.ru/video/x264/x264_improvement_en.html
>
>   Please use as contacts e-mail x264 at graphics.cs.msu.ru !
>
>   Enjoy! :)
>
> --
> Best regards,
> Dmitriy Vatolin
>   Ph.D, Head of Video Group
>    mailto:dmitriy at graphics.cs.msu.ru
>
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> --
> This is the x264-devel mailing-list
> To unsubscribe, go to: http://developers.videolan.org/lists.html
>
>
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