These are the Kodi codecs which is actually an add-on to the Kodi player. Mainly you will need to know how to play HEVC codec or the H.265 codec videos on Kodi? Kodi is designed to natively support HEVC, also known as H.265 or MPEG-H. This video compression standard is intended for high-resolution video and is an improvement over the widely used H.264 codec.
Likewise Kodi v14 introduced software decoding support for HEVC, with limited hardware decoding support added in Kodi v15 for some devices, such as certain Android-based video decoders, Linux on Amlogic SoCs, and Windows via DXVA. Kodi v16 further improved hardware decoding on Android and Windows and introduced it via VAAPI and VDPAU API on Linux. However, since most HTPCs lack hardware decoding support for HEVC, they will need a powerful desktop-class CPU to playback HEVC videos smoothly. This may be why some people experience playback issues, which could be resolved by updating their Kodi version or installing a Kodi HEVC addon. See also the latest Kodi Player.
Solution 1. Upgrading the Kodi version
Solution 2. Install the HEVC addon to Kodi