[x265] [ANN] x265 v3.5 is out!

[Aruna Matheswaran]

Hi all,

x265 version 3.5 is out with new features and encoder enhancements. Please
download v3.5 from our downloads page
<https://bitbucket.org/multicoreware/x265_git/downloads/x265_3.5.tar.gz> (
MD5Sum is deb5df5cb2ec17bdbae6ac6bbc3b1eef) and do check out the full
documentation
available in our release notes
<https://x265.readthedocs.io/en/release_3.5/releasenotes.html>.

Release notes
===========

New feature
----------------
1. Real-time VBV for ABR (Average BitRate) encodes in –pass 2 using
:option:`--vbv-live-multi-pass`: Improves VBV compliance with no
significant impact on coding efficiency.

Enhancements to existing features
---------------------------------
1. Improved hist-based scene cut algorithm: Reduces false positives by
leveraging motion and scene transition info.
2. Support for RADL pictures at IDR scene cuts: Improves coding efficiency
with no significant impact on performance.
3. Bidirectional scene cut aware Frame Quantizer Selection: Saves bits than
forward masking with no noticeable perceptual quality difference.

API changes
-----------
1. Additions to x265_param structure to support the newly added features
and encoder enhancements.
2. New x265_param options :option:`--min-vbv-fullness` and
:option:`--max-vbv-fullness` to control min and max VBV fullness.

Bug fixes
---------
1. Incorrect VBV lookahead in :option:`--analysis-load` +
:option:`--scale-factor`.
2. Encoder hang when VBV is used with slices.
3. QP spikes in the row-level VBV rate-control when WPP enabled.
4. Encoder crash in :option:`--abr-ladder`.

Happy compressing!!

-- 
Regards,
*Aruna Matheswaran,*
Video Codec Engineer,
Media & AI analytics BU,
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