Registered Extension Number

41

Revision

7

Extension and Version Dependencies

  • Requires support for Vulkan 1.0

  • Requires VK_KHR_video_decode_queue to be enabled for any device-level functionality

  • This is a provisional extension and must be used with caution. See the description of provisional header files for enablement and stability details.

Contact

Other Extension Metadata

Last Modified Date

2022-09-18

IP Status

No known IP claims.

Contributors

  • Ahmed Abdelkhalek, AMD

  • Chunbo Chen, Intel

  • 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.264/AVC video compression standard.

New Structures

New Enums

New Bitmasks

New Enum Constants

  • VK_EXT_VIDEO_DECODE_H264_EXTENSION_NAME

  • VK_EXT_VIDEO_DECODE_H264_SPEC_VERSION

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_CAPABILITIES_EXT

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_DPB_SLOT_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_PICTURE_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_PROFILE_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_SESSION_PARAMETERS_ADD_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_SESSION_PARAMETERS_CREATE_INFO_EXT

  • Extending VkVideoCodecOperationFlagBitsKHR:

    • VK_VIDEO_CODEC_OPERATION_DECODE_H264_BIT_EXT

Version History

  • Revision 1, 2018-6-11 (Peter Fang)

    • Initial draft

  • Revision 2, March 29 2021 (Tony Zlatinski)

    • Spec and API Updates

  • Revision 3, August 1 2021 (Srinath Kumarapuram)

    • Rename VkVideoDecodeH264FieldLayoutFlagsEXT to VkVideoDecodeH264PictureLayoutFlagsEXT, VkVideoDecodeH264FieldLayoutFlagBitsEXT to VkVideoDecodeH264PictureLayoutFlagBitsEXT (along with the names of enumerants it defines), and VkVideoDecodeH264ProfileEXT.fieldLayout to VkVideoDecodeH264ProfileEXT.pictureLayout, following Vulkan naming conventions.

  • Revision 4, 2022-03-16 (Ahmed Abdelkhalek)

    • Relocate Std header version reporting/requesting from this extension to VK_KHR_video_queue extension.

    • Remove the now empty VkVideoDecodeH264SessionCreateInfoEXT.

  • Revision 5, 2022-03-31 (Ahmed Abdelkhalek)

    • Use type StdVideoH264Level for VkVideoDecodeH264Capabilities.maxLevel

  • Revision 6, 2022-08-09 (Daniel Rakos)

    • Rename VkVideoDecodeH264ProfileEXT to VkVideoDecodeH264ProfileInfoEXT

    • Rename VkVideoDecodeH264MvcEXT to VkVideoDecodeH264MvcInfoEXT

  • Revision 7, 2022-09-18 (Daniel Rakos)

    • Change type of VkVideoDecodeH264ProfileInfoEXT::pictureLayout to VkVideoDecodeH264PictureLayoutFlagBitsEXT

    • Remove MVC support and related VkVideoDecodeH264MvcInfoEXT structure

    • Rename spsStdCount, pSpsStd, ppsStdCount, and pPpsStd to stdSPSCount, pStdSPSs, stdPPSCount, and pStdPPSs, respectively, in VkVideoDecodeH264SessionParametersAddInfoEXT

    • Rename maxSpsStdCount and maxPpsStdCount to maxStdSPSCount and maxStdPPSCount, respectively, in VkVideoDecodeH264SessionParametersCreateInfoEXT

    • Rename slicesCount and pSlicesDataOffsets to sliceCount and pSliceOffsets, respectively, in VkVideoDecodeH264PictureInfoEXT

See Also

VkVideoDecodeH264CapabilitiesEXT, VkVideoDecodeH264DpbSlotInfoEXT, VkVideoDecodeH264PictureInfoEXT, VkVideoDecodeH264PictureLayoutFlagBitsEXT, VkVideoDecodeH264PictureLayoutFlagsEXT, VkVideoDecodeH264ProfileInfoEXT, VkVideoDecodeH264SessionParametersAddInfoEXT, VkVideoDecodeH264SessionParametersCreateInfoEXT

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 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0