C Specification

A video profile supporting AV1 video decode operations is specified by setting VkVideoProfileInfoKHR::videoCodecOperation to VK_VIDEO_CODEC_OPERATION_DECODE_AV1_BIT_KHR and adding a VkVideoDecodeAV1ProfileInfoKHR structure to the VkVideoProfileInfoKHR::pNext chain.

The VkVideoDecodeAV1ProfileInfoKHR structure is defined as:

// Provided by VK_KHR_video_decode_av1
typedef struct VkVideoDecodeAV1ProfileInfoKHR {
    VkStructureType       sType;
    const void*           pNext;
    StdVideoAV1Profile    stdProfile;
    VkBool32              filmGrainSupport;
} VkVideoDecodeAV1ProfileInfoKHR;

Members

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • stdProfile is a StdVideoAV1Profile value specifying the AV1 codec profile, as defined in section A.2 of the AV1 Specification.

  • filmGrainSupport specifies whether AV1 film grain, as defined in section 7.8.3 of the AV1 Specification, can be used with the video profile. When this member is set to VK_TRUE, video session objects created against the video profile will be able to decode pictures that have film grain enabled.

Description

Note

Enabling filmGrainSupport may increase the memory requirements of video sessions and/or video picture resources on some implementations.
Valid Usage (Implicit)

  • VUID-VkVideoDecodeAV1ProfileInfoKHR-sType-sType
    sType must be VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_PROFILE_INFO_KHR

See Also

VK_KHR_video_decode_av1, VkBool32, VkStructureType

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0