Archive:HEVC: Difference between revisions

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===== About HEVC =====
'''[[w:High Efficiency Video Coding|HEVC]]''' (High Efficiency Video Coding, sometimes called ''H.265'') is a new video compression format and is the successor of H.264. It was formalized on the 25th of November 2013 and published as [http://www.iso.org/iso/catalogue_detail.htm?csnumber=35424 ISO/IEC 23008-2:2013]. An open source HEVC decoder and encoder ([http://x265.org/ x265]) has been developed and is widely adopted.
The HEVC codec (which is also known by the proposed - but unofficial - name h.265) is a new codec which '''has not been finalized'''.  


===== Support in XBMC =====
== Support in {{kodi}} ==
As of this moment time (januari 2014) XBMC doesn't suppport the HEVC codec. Support for this profile will come when an update of FFmpeg is applied to DVDPlayer (XBMC's video player component).  
Kodi v14 ([[Kodi v14 (Helix) changelog|changelog]]) introduced software decoding support for HEVC. Kodi v15 ([[Kodi v15 (Isengard) changelog|changelog]]) introduced limited hardware decoding support for some devices, such as a few Android-based video decoders, for Linux on [[Amlogic]] SoCs and for Windows via DXVA. Kodi v16 ([[Kodi v16 (Jarvis) changelog|changelog]]) further improved hardware decoding on Android and Windows and introduced it via [[wikipedia:VAAPI|VAAPI]] and [[wikipedia:VDPAU|VDPAU]] API on linux. Most HTPCs do not have hardware decoding support for HEVC, so they will need a fairly powerful desktop class CPU in order to playback HEVC videos.


===== Support in FFmpeg =====
[[Category:Video library]]
The FFmpeg maintainers included support for the proposed version of the HEVC decoder in FFmpeg version 2.1.
{{Updated|16}}
 
This version of FFmpeg is not in use in the most recent builds of XBMC and since we are not allowing any more new features to go in to v13 'Gotham' development (we are in ''feature freeze'') this feature will '''not''' make it into XBMC 13.0.
 
===== Planning =====
A first test to upgrade FFmpeg to the latest versions resulted in a severe memory leak which caused 16GB of memory usage within 20 minutes. Obviously these issues need to be resolved before you will see a version with FFmpeg 2.1 and there are developers working on it, but the main focus at this point in time is on releasing XBMC 13.0 'Gotham'
 
By the time the H.265 encoder is finalised and people start using it widely there will be support for it in XBMC, but at this moment we are not there yet. Therefore the best suggestion is to avoid using this encoder for the moment if you intend to play your creations with XBMC.
 
===== Hardware acceleration =====
Currently there are no hardware accelerated options to play HEVC content, so you would need a pretty beefy CPU to decode a highly compressed HEVC movie.

Revision as of 05:48, 17 September 2016

HEVC (High Efficiency Video Coding, sometimes called H.265) is a new video compression format and is the successor of H.264. It was formalized on the 25th of November 2013 and published as ISO/IEC 23008-2:2013. An open source HEVC decoder and encoder (x265) has been developed and is widely adopted.

Support in Kodi

Kodi v14 (changelog) introduced software decoding support for HEVC. Kodi v15 (changelog) introduced limited hardware decoding support for some devices, such as a few Android-based video decoders, for Linux on Amlogic SoCs and for Windows via DXVA. Kodi v16 (changelog) further improved hardware decoding on Android and Windows and introduced it via VAAPI and VDPAU API on linux. Most HTPCs do not have hardware decoding support for HEVC, so they will need a fairly powerful desktop class CPU in order to playback HEVC videos.