C Specification

The VkVideoSessionCreateInfoKHR structure is defined as:

// Provided by VK_KHR_video_queue
typedef struct VkVideoSessionCreateInfoKHR {
    VkStructureType                 sType;
    const void*                     pNext;
    uint32_t                        queueFamilyIndex;
    VkVideoSessionCreateFlagsKHR    flags;
    const VkVideoProfileInfoKHR*    pVideoProfile;
    VkFormat                        pictureFormat;
    VkExtent2D                      maxCodedExtent;
    VkFormat                        referencePictureFormat;
    uint32_t                        maxDpbSlots;
    uint32_t                        maxActiveReferencePictures;
    const VkExtensionProperties*    pStdHeaderVersion;
} VkVideoSessionCreateInfoKHR;

Members

  • sType is a VkStructureType value identifying this structure.

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

  • queueFamilyIndex is the index of the queue family the created video session will be used with.

  • flags is a bitmask of VkVideoSessionCreateFlagBitsKHR specifying creation flags.

  • pVideoProfile is a pointer to a VkVideoProfileInfoKHR structure specifying the video profile the created video session will be used with.

  • pictureFormat is the image format the created video session will be used with. If pVideoProfile->videoCodecOperation specifies a decode operation, then pictureFormat is the image format of decode output pictures usable with the created video session. If pVideoProfile->videoCodecOperation specifies an encode operation, then pictureFormat is the image format of encode input pictures usable with the created video session.

  • maxCodedExtent is the maximum width and height of the coded frames the created video session will be used with.

  • referencePictureFormat is the image format of reference pictures stored in the DPB the created video session will be used with.

  • maxDpbSlots is the maximum number of DPB Slots that can be used with the created video session.

  • maxActiveReferencePictures is the maximum number of active reference pictures that can be used in a single video coding operation using the created video session.

  • pStdHeaderVersion is a pointer to a VkExtensionProperties structure requesting the Video Std header version to use for the videoCodecOperation specified in pVideoProfile.

Description

Valid Usage
Valid Usage (Implicit)

See Also

VK_KHR_video_queue, VkExtensionProperties, VkExtent2D, VkFormat, VkStructureType, VkVideoProfileInfoKHR, VkVideoSessionCreateFlagsKHR, vkCreateVideoSessionKHR

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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0