# VK_KHR_video_decode_av1(3) Manual Page

## Name

VK_KHR_video_decode_av1 - device extension

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## Registered Extension Number

513

## Revision

1

## Ratification Status

Ratified

## Extension and Version Dependencies

VK_KHR_video_decode_queue

## Contact

- Daniel Rakos [GitHub]aqnuep

## Extension Proposal

VK_KHR_video_decode_av1

## Other Extension Metadata

Last Modified Date

  2024-01-02

IP Status

  No known IP claims.

Contributors

  - Ahmed Abdelkhalek, AMD

  - Benjamin Cheng, AMD

  - Ho Hin Lau, AMD

  - Lynne Iribarren, Independent

  - David Airlie, Red Hat, Inc.

  - Ping Liu, Intel

  - Srinath Kumarapuram, NVIDIA

  - Vassili Nikolaev, NVIDIA

  - Tony Zlatinski, NVIDIA

  - Charlie Turner, Igalia

  - Daniel Almeida, Collabora

  - Nicolas Dufresne, Collabora

  - 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 AV1 video compression standard.

## New Structures

- Extending VkVideoCapabilitiesKHR:

  - VkVideoDecodeAV1CapabilitiesKHR

- Extending VkVideoDecodeInfoKHR:

  - VkVideoDecodeAV1PictureInfoKHR

- Extending VkVideoProfileInfoKHR, VkQueryPoolCreateInfo:

  - VkVideoDecodeAV1ProfileInfoKHR

- Extending VkVideoReferenceSlotInfoKHR:

  - VkVideoDecodeAV1DpbSlotInfoKHR

- Extending VkVideoSessionParametersCreateInfoKHR:

  - VkVideoDecodeAV1SessionParametersCreateInfoKHR

## New Enum Constants

- `VK_KHR_VIDEO_DECODE_AV1_EXTENSION_NAME`

- `VK_KHR_VIDEO_DECODE_AV1_SPEC_VERSION`

- `VK_MAX_VIDEO_AV1_REFERENCES_PER_FRAME_KHR`

- Extending VkStructureType:

  - `VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_CAPABILITIES_KHR`

  - `VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_DPB_SLOT_INFO_KHR`

  - `VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_PICTURE_INFO_KHR`

  - `VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_PROFILE_INFO_KHR`

  - `VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_SESSION_PARAMETERS_CREATE_INFO_KHR`

- Extending VkVideoCodecOperationFlagBitsKHR:

  - `VK_VIDEO_CODEC_OPERATION_DECODE_AV1_BIT_KHR`

## Version History

- Revision 1, 2024-01-02 (Daniel Rakos)

  - Internal revisions

## 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