HM

The reference software for HEVC is called HM (HEVC Test Model).

HEVC reference

https://www.vcodex.com/hevc-and-vp9-codecs-try-them-yourself/

https://hevc.hhi.fraunhofer.de/

The latest source code can be obtained using SVN as follows

svn checkout https://hevc.hhi.fraunhofer.de/svn/svn_HEVCSoftware/trunk/

AVC reference

http://iphome.hhi.de/suehring/tml/