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Options Analysis of MPEG-4 AVC/H.264 Codec x264

MSU Graphics & Media Lab (Video Group)

Take a look at this article on the new site! Follow the link
https://videoprocessing.ai/codecs/x264-options-analysis-2008.html

Project head: Dr. Dmitriy Vatolin
Testing, charts, analysis: Alexander Parshin, Vladimir Popov, Kira Ragulina

DOWNLOAD

x264 Codec

We have analyzed x264 (version r938) - one of the best codecs of MPEG-4 AVC/H.264 video coding standard. This codec demonstrates great results of both quality and speed of encoding according to our previous MPEG-4 AVC/H.264 codec comparisons. Number of codec options were analysed to find their best values and codec's optimal presets.

The following options were considered:

  • Macroblocks partitions selection (--partitions)
  • Number of B-frames (--bframes)
  • Number of reference frames (--ref)
  • Motion Estimation method (--me)
  • Algorithm of subpixel compensation usage (--subme)
  • Mixing of predictions from different frames (--mixed-refs)
  • Weighted predictions in B-frames (--weightb)

    • Report Contents

    The report contain the following sections:

  • List of optimal presets for different encoding speed
  • Codec options analysis using colored point clouds
  • Codec options analysis using speed/quality tradeoff
  • Codec options analysis using convex-hull elumination
    • Presets point cloud
    Presets quality and speed. Each point is tested preset. X axis is encoding speed, Y axis is average bitrate for the same quality.

    Main Results

    Main results of this work are the following:

  • List of optimal presets. Those presets can be used for better encoding of your video.
  • Recommendations for presets usage for different encoding speed.
  • Conclusions about methods implementations efficiency related to other implemented methods.

    • We offer commercial evaluations of codec's parameters set similar to this one. Write us an e-mail for more details.

    Download

  • x264 options analysis, PDF, EN, 1.73 MB

    • Thanks

    Special thanks to the following contributors of this work

    Intel RFBR

    Contact Information

    See all MSU Video Codecs Comparisons

    MSU video codecs comparisons resources:

    Other materials

    Video resources:

    3D and stereo video
    Projects on 3D and stereo video processing and analysis
    MSU Video Quality Measurement tools
    Programs with different objective and subjective video quality metrics implementation Codecs comparisons
    Objective and subjective quality evaluation
    tests for video and image codecs
    Ext. link: x264 parameters efficiency comparison
    Public MSU video filters
    Here are available VirtualDub and AviSynth filters. For a given type of digital video filtration we typically develop a family of different algorithms and implementations. Generally there are also versions optimized for PC and hardware implementations (ASIC/FPGA/DSP). These optimized versions can be licensed to companies. Please contact us for details via video(at)graphics.cs.msu_ru. Filters for companies
    We are working with Intel, Samsung, RealNetworks and other companies on adapting our filters other video processing algorithms for specific video streams, applications and hardware like TV-sets, graphics cards, etc. Some of such projects are non-exclusive. Also we have internal researches. Please let us know via video(at)graphics.cs.msu_ru if you are interested in acquiring a license for such filters or making a custom R&D project on video processing, compression, computer vision.
    Video codecs projects
    Different research and development
    projects on video codecs Other
    Other information
    Last updated: 28-May-2025
    Server size: 8069 files, 1215Mb (Server statistics)

    Project updated by
    Server Team and MSU Video Group

    Project sponsored by YUVsoft Corp.

    Project supported by MSU Graphics & Media Lab

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