2 x265: Standalone encoder for HEVC. x265 is an open source software library for HEVC encoding, developed by a consortium coordinated by MulticoreWare. It is available under the GNU General Public License. The current version (March 2014) provides: Full support for Main profile of HEVC including 8-bits per sample, YUV 4:2:0 format
Installation Guide. 2.3 4 February 2019. 1 Dolby Encoding Engine HEVC Encoder Installation Guide. The Dolby Encoding Engine is a standalone, file based software encoder, that supports encoding of Dolby Vision, Dolby Digital Plus with Dolby Atmos content and Dolby Digital Plus formats and provides MP4/TS muxing functionality. This guide covers the installation and license activation of Dolby Encoding Engine as well as the procedures required to install the x265 HEVC encoder.
So while the benefits of HEVC encoding are clear, playback is currently restricted to PCs, high-end smartphones and tablets and a very small range of media players and consoles. At this point in time, compatibility is a disadvantage to encoding your media library in HEVC. There are many options for software that can playback HEVC-encoded files.