VK_KHR_video_encode_feedback2(3)

# VK_KHR_video_encode_feedback2(3) Manual Page

## Name

VK_KHR_video_encode_feedback2 - device extension

## Registered Extension Number

599

## Revision

1

## Ratification Status

Ratified

## Extension and Version Dependencies

VK_KHR_video_encode_queue

## Contact

- Ahmed Abdelkhalek [GitHub]aabdelkh

## Extension Proposal

VK_KHR_video_encode_feedback2

## Other Extension Metadata

Last Modified Date

  2026-02-04

IP Status

  No known IP claims.

Contributors

  - Sreerenj Balachandran, Amazon

  - Ahmed Abdelkhalek, AMD

  - Benjamin Cheng, AMD

  - Aidan Fabius, Core Avionics & Industrial Inc.

  - Ping Liu, Intel

  - Srinath Kumarapuram, NVIDIA

  - Tony Zlatinski, NVIDIA

  - Daniel Rakos, RasterGrid

## Description

This extension builds upon the `VK_QUERY_TYPE_VIDEO_ENCODE_FEEDBACK_KHR` queries introduced by the `VK_KHR_video_encode_queue` extension and extends the set of supported video encode feedback values with additional statistics about the encoded picture, including per picture partition feedback values.

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceVideoEncodeFeedback2FeaturesKHR

- Extending VkQueryPoolCreateInfo:

  - VkQueryPoolVideoEncodePerPartitionFeedbackCreateInfoKHR

- Extending VkVideoCapabilitiesKHR:

  - VkVideoEncodeFeedback2CapabilitiesKHR

## New Enums

- VkVideoEncodePerPartitionFeedbackFlagBitsKHR

## New Bitmasks

- VkVideoEncodePerPartitionFeedbackFlagsKHR

## New Enum Constants

- `VK_KHR_VIDEO_ENCODE_FEEDBACK_2_EXTENSION_NAME`

- `VK_KHR_VIDEO_ENCODE_FEEDBACK_2_SPEC_VERSION`

- Extending VkStructureType:

  - VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VIDEO_ENCODE_FEEDBACK_2_FEATURES_KHR

  - VK_STRUCTURE_TYPE_QUERY_POOL_VIDEO_ENCODE_PER_PARTITION_FEEDBACK_CREATE_INFO_KHR

  - VK_STRUCTURE_TYPE_VIDEO_ENCODE_FEEDBACK_2_CAPABILITIES_KHR

- Extending VkVideoEncodeFeedbackFlagBitsKHR:

  - VK_VIDEO_ENCODE_FEEDBACK_AVERAGE_QUANTIZATION_BIT_KHR

  - VK_VIDEO_ENCODE_FEEDBACK_INTER_PIXELS_BIT_KHR

  - VK_VIDEO_ENCODE_FEEDBACK_INTRA_PIXELS_BIT_KHR

  - VK_VIDEO_ENCODE_FEEDBACK_MAX_QUANTIZATION_BIT_KHR

  - VK_VIDEO_ENCODE_FEEDBACK_MIN_QUANTIZATION_BIT_KHR

  - VK_VIDEO_ENCODE_FEEDBACK_PICTURE_PARTITION_COUNT_BIT_KHR

  - VK_VIDEO_ENCODE_FEEDBACK_SKIPPED_PIXELS_BIT_KHR

## Version History

- Revision 1, 2026-02-04 (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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0