# VkVideoEncodeH264QuantizationMapCapabilitiesKHR(3) Manual Page

## Name

VkVideoEncodeH264QuantizationMapCapabilitiesKHR - Structure describing H.264 encode quantization map capabilities

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## C Specification

When calling vkGetPhysicalDeviceVideoCapabilitiesKHR to query the capabilities of an H.264 encode profile, the `VkVideoEncodeH264QuantizationMapCapabilitiesKHR` structure can be included in the `pNext` chain of the VkVideoCapabilitiesKHR structure to retrieve additional video encode quantization map capabilities specific to H.264 encode profiles.

The `VkVideoEncodeH264QuantizationMapCapabilitiesKHR` structure is defined as:

    // Provided by VK_KHR_video_encode_h264 with VK_KHR_video_encode_quantization_map
    typedef struct VkVideoEncodeH264QuantizationMapCapabilitiesKHR {
        VkStructureType    sType;
        void*              pNext;
        int32_t            minQpDelta;
        int32_t            maxQpDelta;
    } VkVideoEncodeH264QuantizationMapCapabilitiesKHR;

## Members

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

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

- `minQpDelta` indicates the minimum QP delta value supported for H.264 QP delta maps.

- `maxQpDelta` indicates the maximum QP delta value supported for H.264 QP delta maps.

## Description

Valid Usage (Implicit)

- VUID-VkVideoEncodeH264QuantizationMapCapabilitiesKHR-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_QUANTIZATION_MAP_CAPABILITIES_KHR`

## See Also

VK_KHR_video_encode_h264, VK_KHR_video_encode_quantization_map, 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