I participate in the GSoC and my project is an HEVC decoder for libav: https://github.com/smarter/libav/tree/hevc (the decoder is contained in the libavcodec/hevc* files). It currently only decodes I-frames and doesn't include the in-loop filters.

Reference encoder: http://hevc.kw.bbc.co.uk/trac

Samples: ftp://ftp.kw.bbc.co.uk/hevc/hm-8.0-anchors/bitstreams/

Latest draft of the spec: http://phenix.it-sudparis.eu/jct/doc_end_user/current_docume...