[x265] [ANN] x265 1.0 is released

[Steve Borho]

x265 1.0 is a regularly scheduled feature release

The only significance to the "1.0" tag is that this is our tenth tagged release.

There were many bugs fixed since the 0.9 tag, particularly in rate
control and Main10 mode decision. There have been a couple of minor
performance improvements.

= Feature changes =

* Experimental support for 4:2:2
* improved profile and level detection
* imported checkasm-a.asm from x264 and fixed the asm bugs it exposed
* lookahead will use a worker thread when beneficial
* Many more motion candidate vectors are passed to motion estimation
* Lambda table improvements for better bitrate response at low QP

= API changes =

* added param.bEnableAccessUnitDelimiters
* removed param.vui.bEnableVuiParametersPresentFlag (now implied)
* removed param.vui.bEnableAspectRatioIdc (now implied)
* removed param.vui.bEnableVuiTimingInfoPresentFlag (always enabled)

= CLI changes =

--aud was added
--vui was removed
--timinginfo was removed (it is always enabled)

Our online documentation is steadily improving.  I hope to add more
and more content over the coming weeks. http://x265.readthedocs.org/

Development is still focused on finding and fixing coding bugs,
improving rate control, and improving performance (in roughly that
order)

Regards,

-- 
Steve Borho