x265 2.1版本更新

2016年9月22日
x265 version 2.1 has been released. This release contains experimental
support for slice-parallelism, enhancements to the API to support
user-defined SEI messages, and other bug fixes.
 
Full documentation is available at http://x265.readthedocs.org/en/stable/

Release Notes for 2.1
================
 
Encoder enhancements
----------------------------------
1. Support for qg-size of 8
2. Experimental support for slice-parallelism.
 
API changes
-------------------
1. Encode user-define SEI messages passed in through x265_picture object.
2. Disable SEI and VUI messages from the bitstream
3. Specify qpmin and qpmax
4. Control number of bits to encode POC.
 
Bug fixes
--------------
1. QP fluctuation fix for first B-frame in mini-GOP for 2-pass encoding
with tune-grain.
2. Assembly fix for crashes in 32-bit from dct_sse4.
3. Threadpool creation fix in windows platform.