C Specification

The VkVideoDecodeH264SessionParametersCreateInfoEXT structure is defined as:

// Provided by VK_EXT_video_decode_h264
typedef struct VkVideoDecodeH264SessionParametersCreateInfoEXT {
    VkStructureType                                        sType;
    const void*                                            pNext;
    uint32_t                                               maxStdSPSCount;
    uint32_t                                               maxStdPPSCount;
    const VkVideoDecodeH264SessionParametersAddInfoEXT*    pParametersAddInfo;
} VkVideoDecodeH264SessionParametersCreateInfoEXT;


A VkVideoDecodeH264SessionParametersCreateInfoEXT structure holding one H.264 SPS and at least one H.264 PPS parameter set must be chained to VkVideoSessionParametersCreateInfoKHR when calling vkCreateVideoSessionParametersKHR to store these parameter set(s) with the decoder parameter set object for later reference. The provided H.264 SPS/PPS parameters must be within the limits specified during decoder creation for the decoder specified in VkVideoSessionParametersCreateInfoKHR.


  • sType is the type of this structure.

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

  • maxStdSPSCount is the maximum number of SPS parameters that the VkVideoSessionParametersKHR can contain.

  • maxStdPPSCount is the maximum number of PPS parameters that the VkVideoSessionParametersKHR can contain.

  • pParametersAddInfo is NULL or a pointer to a VkVideoDecodeH264SessionParametersAddInfoEXT structure specifying H.264 parameters to add upon object creation.

Valid Usage (Implicit)
  • VUID-VkVideoDecodeH264SessionParametersCreateInfoEXT-sType-sType

  • VUID-VkVideoDecodeH264SessionParametersCreateInfoEXT-pParametersAddInfo-parameter
    If pParametersAddInfo is not NULL, pParametersAddInfo must be a valid pointer to a valid VkVideoDecodeH264SessionParametersAddInfoEXT 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 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0