Hi all, x265 version 3.4 is out with cool new features and encoder enhancements in terms of encoding efficiency as well as speed.
Please download v3.4 from our downloads page <https://bitbucket.org/multicoreware/x265/downloads/x265_3.4.tar.gz> ( MD5Sum is e37b91c1c114f8815a3f46f039fe79b5) and do check out the full documentation available in our release notes <https://x265.readthedocs.io/en/default/releasenotes.html#version-3-4>. Release Notes of version 3.4 ====================== New features ------------ 1. **Edge-aware quadtree partitioning** to terminate CU depth recursion based on edge information. :option:`--rskip` level 2 enables the feature and :option:`--rskip-edge-threshold` denotes the minimum expected edge-density percentage within the CU, below which the recursion is skipped. Experimental feature. 2. Application-level feature :option:`--abr-ladder` for automating efficient ABR ladder generation. Shows ~65% savings in the over-all turn-around time required for the generation of a typical Apple HLS ladder in Intel(R) Xeon(R) Platinum 8280 CPU @ 2.70GHz over a sequential ABR-ladder generation approach that leverages save-load architecture. Enhancements to existing features --------------------------------- 1. Improved efficiency in 2-pass rate-control algorithm. The savings in the bitrate is ~1.72% with visual improvement in quality in the initial 1-2 secs. Encoder enhancements -------------------- 1. Faster ARM64 encodes enabled by ASM contributions from Huawei. The speed-up over no-asm version for 1080p encodes @ medium preset is ~15% in a 16 core H/W. 2. Strict VBV conformance in zone encoding. Bug fixes --------- 1. Multi-pass encode failures with :option:`--frame-dup`. 2. Corrupted bitstreams with :option:`--hist-scenecut` when input depth and internal bit-depth differ. 3. Incorrect analysis propagation in multi-level save-load architecture. 4. Failure in detecting NUMA packages installed in non-standard directories. Happy compressing!! -- Regards, *Aruna Matheswaran,* Video Codec Engineer, Media & AI analytics BU,
_______________________________________________ x265-devel mailing list x265-devel@videolan.org https://mailman.videolan.org/listinfo/x265-devel
