Registered Extension Number

188

Revision

8

Ratification Status

Ratified

Extension and Version Dependencies

VK_KHR_video_decode_queue

Contact

Extension Proposal

VK_KHR_video_decode_h265

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 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

This extension was promoted to KHR from the provisional extension VK_EXT_video_decode_h265.

New Structures

New Enum Constants

  • VK_KHR_VIDEO_DECODE_H265_EXTENSION_NAME

  • VK_KHR_VIDEO_DECODE_H265_SPEC_VERSION

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_CAPABILITIES_KHR

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_DPB_SLOT_INFO_KHR

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_PICTURE_INFO_KHR

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_PROFILE_INFO_KHR

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_SESSION_PARAMETERS_ADD_INFO_KHR

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_SESSION_PARAMETERS_CREATE_INFO_KHR

  • Extending VkVideoCodecOperationFlagBitsKHR:

    • VK_VIDEO_CODEC_OPERATION_DECODE_H265_BIT_KHR

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

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0