C Specification

When a video session parameters object is created with the codec operation VK_VIDEO_CODEC_OPERATION_DECODE_H264_BIT_KHR, the VkVideoSessionParametersCreateInfoKHR::pNext chain must include a VkVideoDecodeH264SessionParametersCreateInfoKHR structure specifying the capacity and initial contents of the object.

The VkVideoDecodeH264SessionParametersCreateInfoKHR structure is defined as:

// Provided by VK_KHR_video_decode_h264
typedef struct VkVideoDecodeH264SessionParametersCreateInfoKHR {
    VkStructureType                                        sType;
    const void*                                            pNext;
    uint32_t                                               maxStdSPSCount;
    uint32_t                                               maxStdPPSCount;
    const VkVideoDecodeH264SessionParametersAddInfoKHR*    pParametersAddInfo;
} VkVideoDecodeH264SessionParametersCreateInfoKHR;


  • sType is a VkStructureType value identifying this structure.

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

  • maxStdSPSCount is the maximum number of H.264 SPS entries the created VkVideoSessionParametersKHR can contain.

  • maxStdPPSCount is the maximum number of H.264 PPS entries the created VkVideoSessionParametersKHR can contain.

  • pParametersAddInfo is NULL or a pointer to a VkVideoDecodeH264SessionParametersAddInfoKHR structure specifying H.264 parameters to add upon object creation.


Valid Usage (Implicit)
  • VUID-VkVideoDecodeH264SessionParametersCreateInfoKHR-sType-sType

  • VUID-VkVideoDecodeH264SessionParametersCreateInfoKHR-pParametersAddInfo-parameter
    If pParametersAddInfo is not NULL, pParametersAddInfo must be a valid pointer to a valid VkVideoDecodeH264SessionParametersAddInfoKHR structure

See Also

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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0