Video-Based Codec Optimization

Effective Video Transcoding Project (in cooperation with CS MSU Graphics & Media Lab)

Basic info about Effective Video Transcoding

For almost 14 years, Lomonosov MSU Graphics&Media Lab’s video group has been conducting video codecs comparisons. We know that almost always there is a possibility to find efficient encoding options for every video. We did a great study and learned how to determine optimal codec settings for a large number of video classes. After comparing our encoding options for x264 to the 2015 and 2016 comparisons’ options and standard ones, we received very interesting and promising results.

15% bitrate savings
in average
Encoding presets determined by our method
beats x264 developers' presets with keeping
encoding time and encoded video quality

These results are valuable for options giving the same or better objective quality of encoded video and the same or higher encoding speed comparing to standard presets. Thus, we can provide optimal encoding settings that will be a part of pareto optimal RD-curve, that is “shifted” from given encoder options.

We developed a way to find optimal encoding settings for a large number of video classes

Percentage of file size reduction in average for a representative dataset of 77 videos:

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  • We don’t declare an “up-to-x%” bitrate reduction — average file size reduction is 15% higher comparing to standard x264 presets
  • We find presets that do not reduce encoding speed and objective quality of encoded video
    You give limitations, and we guarantee the same or higher objective quality and encoding speed

You use standard presets and don’t believe that it will work for your videos? Give us a chance — request a demo, for free!

  1. Give us your video and preset
    Send us uncompressed video and encoding settings that you were going to use for compression
  2. Receive a report
    with optimal presets for your video and their gain under your preset
  3. Choose and pay
    We offer additional options for better compression and analysis
  4. Get encoding settings
    and encode similar videos with it
    OR/AND
    Get your video
    compressed with chosen preset

Contact

E-mail: evt@compression.ru

Technical info

A more detailed technical report and examples will be available soon in this section. At the moment we can share a couple of cool charts.

We created a representative dataset of 385 videos chosen from 9000+ FullHD&4K videos

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12 million encoder launches were done on Intel Xeon E3-1125v3

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About us

Project mentor: Dr. Dmitriy Vatolin
Project team:

Sergey Zvezdakov Anastasia Antsiferova Denis Kondranin
Sergey Zvezdakov
szvezdakov@graphics.cs.msu.ru
Anastasia Antsiferova
aantsiferova@graphics.cs.msu.ru
Denis Kondranin
denis.kondranin@graphics.cs.msu.ru

Thanks to UMNIK and Eureka! Concept programs:

umnik_logo eureka_logo innopraktika_logo
08 Mar 2018
See Also
Automatic local color correction in S3D video
Stereo video may contain a huge color discrepancy. Most of the problems are hard to eliminate because of possible different distortions in each area in the frame.
Call for HEVC codecs 2019
Fourteen modern video codec comparison
HEVC Video Codecs Comparison 2018 (Thirteen MSU Video Codec Comparison)
13th MSU video codecs comparison
HEVC Video Codecs Comparison 2017 (Twelfth MSU Video Codec Comparison)
12th MSU video codecs comparison
MSU Video Codec Comparisons (6 test of lossless, MPEG-4 and MPEG-4 AVC)
Call for HEVC codecs 2018
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