# VkVideoEncodeQualityLevelPropertiesKHR(3) Manual Page

## Name

VkVideoEncodeQualityLevelPropertiesKHR - Structure describing the video encode quality level properties

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## C Specification

The `VkVideoEncodeQualityLevelPropertiesKHR` structure is defined as:

    // Provided by VK_KHR_video_encode_queue
    typedef struct VkVideoEncodeQualityLevelPropertiesKHR {
        VkStructureType                            sType;
        void*                                      pNext;
        VkVideoEncodeRateControlModeFlagBitsKHR    preferredRateControlMode;
        uint32_t                                   preferredRateControlLayerCount;
    } VkVideoEncodeQualityLevelPropertiesKHR;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `preferredRateControlMode` is a VkVideoEncodeRateControlModeFlagBitsKHR value indicating the preferred rate control mode to use with the video encode quality level.

- `preferredRateControlLayerCount` indicates the preferred number of rate control layers to use with the video encode quality level.

## Description

Valid Usage (Implicit)

- VUID-VkVideoEncodeQualityLevelPropertiesKHR-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_VIDEO_ENCODE_QUALITY_LEVEL_PROPERTIES_KHR`

- VUID-VkVideoEncodeQualityLevelPropertiesKHR-pNext-pNext
  Each `pNext` member of any structure (including this one) in the `pNext` chain must be either `NULL` or a pointer to a valid instance of VkVideoEncodeAV1QualityLevelPropertiesKHR, VkVideoEncodeH264QualityLevelPropertiesKHR, or VkVideoEncodeH265QualityLevelPropertiesKHR

- VUID-VkVideoEncodeQualityLevelPropertiesKHR-sType-unique
  The `sType` value of each struct in the `pNext` chain must be unique

## See Also

VK_KHR_video_encode_queue, VkStructureType, VkVideoEncodeRateControlModeFlagBitsKHR, vkGetPhysicalDeviceVideoEncodeQualityLevelPropertiesKHR

## 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