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Version 3.6 of x265 is out with amazing new features such as Segment-based Rate Control (SBRC), Motion-Compensated Spatio-Temporal Filtering (mcstf), Scene Cut Aware QP, Histogram-Based Scene Change Detection, and the inclusion of film grain characteristics as a Supplemental Enhancement Information (SEI) message in the bitstream. The complete list of features is available in the release […]

Check out our recent release v3.5 for real-time 2-pass VBV, improved scenecut handling, and other critical bug fixes.Do check our release notes for more details and download the version here  Happy compressing!

x265 contains a significant amount assembly optimization for its compute kernels which enables speed-ups of the order of 5X when compared to the running pure C-code. While the support for the x86 architecture is extensive (there exist kernels right from SSSE3 all the way until AVX512), support for other architectures such as ARM is limited. […]

Version 3.2 of x265 is now out! It comes with cool feature additions including hierarchical motion estimation, selective SAO, and Edge-based AQ. Get this version from our downloads page. Happy compressing!!

x265 version 3.1 is out with attractive performance and quality improvements. The key new additions include integration of SVT-HEVC library into the x265 library, improved support for interlaced encoding, and better encoder control to ensure correct rendering of HDR content. Check out our release notes at https://x265.readthedocs.io/en/3.1/releasenotes.html for more details. Happy compressing!

By  Praveen Kumar Karadugattu and Kalyan Goswami In the x265 Encoder ver 3.0, the default parameters for “veryslow” and “slower” presets are changed. In this blog we will discuss this modification in detail. The all new ‘veryslow’ Preset The “veryslow” preset is one of the most preferred presets by the offline encoding vendors, where the […]

With changeset a41325fc854f, the x265 library can invoke the SVT-HEVC library for encoding through the —svt option. We have mapped presets and command-line options supported by the x265 application into the equivalent options of SVT-HEVC, and have added a few specific options that are available only when the SVT-HEVC library is invoked. This page in […]

We are happy to announce now have version 3.0 of x265. The main focus of this version is to improve the quality, especially for the ‘veryslow’ and ‘slower’ presets. Moreover, Dolbyvision is included in this version. The detail description of all the new features and releases is available in our release notes.