x264 icon
x264 icon

x264

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x264 is a free software library and application for encoding video streams into the H.264/MPEG-4 AVC compression format, and is released under the terms of the GNU GPL.

License model

  • FreeOpen Source

Country of Origin

  • FR flagFrance
  • European Union flagEU

Platforms

  • Mac
  • Windows
  • Linux
  • Online
  • Android
  • iPhone
  • Android Tablet
  • iPad
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 Tags

  • h-264
  • video-encoding
  • video-codecs
  • h-264-codec
  • avc-codec

x264 News & Activities

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  • RemovedUser updated x264
    2 months ago
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x264 information

  • Developed by

    FR flagVideoLAN
  • Licensing

    Open Source (GPL-2.0) and Free product.
  • Pricing

    One time purchase (perpetual license) that costs $0.
  • Alternatives

    13 alternatives listed
  • Supported Languages

    • English
    • French

AlternativeTo Category

Video & Movies

Our users have written 0 comments and reviews about x264, and it has gotten 3 likes

x264 was added to AlternativeTo by NewApps on Dec 18, 2015 and this page was last updated May 3, 2025.
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What is x264?

Features Overview Provides best-in-class performance, compression, and features. Achieves dramatic performance, encoding 4 or more 1080p streams in realtime on a single consumer-level computer. Gives the best quality, having the most advanced psychovisual optimizations. Support features necessary for many different applications, such as television broadcast, Blu-ray low-latency video applications, and web video. x264 forms the core of many web video services, such as Youtube, Facebook, Vimeo, and Hulu. It is widely used by television broadcasters and ISPs.

Encoder features 8x8 and 4x4 adaptive spatial transform Adaptive B-frame placement B-frames as references / arbitrary frame order CAVLC/CABAC entropy coding Custom quantization matrices Intra: all macroblock types (16x16, 8x8, 4x4, and PCM with all predictions) Inter P: all partitions (from 16x16 down to 4x4) Inter B: partitions from 16x16 down to 8x8 (including skip/direct) Interlacing (MBAFF) Multiple reference frames Ratecontrol: constant quantizer, constant quality, single or multipass ABR, optional VBV Scenecut detection Spatial and temporal direct mode in B-frames, adaptive mode selection Parallel encoding on multiple CPUs Predictive lossless mode Psy optimizations for detail retention (adaptive quantization, psy-RD, psy-trellis) Zones for arbitrarily adjusting bitrate distribution

Official Links