[x265] [ANN]x265 version 3.4 released

[Andrey Semashev]

I see no 3.4 tag in git.

On 2020-05-29 21:15, Aruna Matheswaran wrote:
> 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 at videolan.org
> https://mailman.videolan.org/listinfo/x265-devel
>