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// Copyright 2018-2023 The Khronos Group Inc.
//
// SPDX-License-Identifier: CC-BY-4.0
include::{generated}/meta/{refprefix}VK_KHR_video_decode_h265.adoc[]
=== Other Extension Metadata
*Last Modified Date*::
2023-12-05
*IP Status*::
No known IP claims.
*Contributors*::
- Ahmed Abdelkhalek, AMD
- HoHin Lau, AMD
- Jake Beju, AMD
- Peter Fang, AMD
- Ping Liu, Intel
- Srinath Kumarapuram, NVIDIA
- Tony Zlatinski, NVIDIA
- Daniel Rakos, RasterGrid
=== Description
This extension builds upon the `apiext:VK_KHR_video_decode_queue` extension
by adding support for decoding elementary video stream sequences compliant
with the H.265/HEVC video compression standard.
[NOTE]
.Note
====
This extension was promoted to `KHR` from the provisional extension
`VK_EXT_video_decode_h265`.
====
include::{generated}/interfaces/VK_KHR_video_decode_h265.adoc[]
=== Version History
* Revision 1, 2018-6-11 (Peter Fang)
** Initial draft
* Revision 1.6, March 29 2021 (Tony Zlatinski)
** Spec and API updates.
* Revision 2, 2022-03-16 (Ahmed Abdelkhalek)
** Relocate Std header version reporting/requesting from this extension to
VK_KHR_video_queue extension.
** Remove the now empty VkVideoDecodeH265SessionCreateInfoEXT.
* Revision 3, 2022-03-31 (Ahmed Abdelkhalek)
** Use type StdVideoH265Level for VkVideoDecodeH265Capabilities.maxLevel
* Revision 4, 2022-08-09 (Daniel Rakos)
** Rename `VkVideoDecodeH265ProfileEXT` to
`VkVideoDecodeH265ProfileInfoEXT`
* Revision 5, 2022-09-18 (Daniel Rakos)
** Rename `vpsStdCount`, `pVpsStd`, `spsStdCount`, `pSpsStd`,
`ppsStdCount`, and `pPpsStd` to `stdVPSCount`, `pStdVPSs`,
`stdSPSCount`, `pStdSPSs`, `stdPPSCount`, and `pStdPPSs`, respectively,
in `VkVideoDecodeH265SessionParametersAddInfoEXT`
** Rename `maxVpsStdCount`, `maxSpsStdCount`, and `maxPpsStdCount` to
`maxStdVPSCount`, `maxStdSPSCount` and `maxStdPPSCount`, respectively,
in `VkVideoDecodeH265SessionParametersCreateInfoEXT`
** Rename `slicesCount` and `pSlicesDataOffsets` to `sliceCount` and
`pSliceOffsets`, respectively, in `VkVideoDecodeH265PictureInfoEXT`
* Revision 6, 2022-11-14 (Daniel Rakos)
** Rename `slice` to `sliceSegment` in the APIs for better clarity
* Revision 7, 2022-11-14 (Daniel Rakos)
** Change extension from `EXT` to `KHR`
** Extension is no longer provisional
* Revision 8, 2023-12-05 (Daniel Rakos)
** Condition reference picture setup based on the value of
`StdVideoDecodeH265PictureInfo::flags.IsReference`
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