C Specification

To create a video session object, call:

// Provided by VK_KHR_video_queue
VkResult vkCreateVideoSessionKHR(
    VkDevice                                    device,
    const VkVideoSessionCreateInfoKHR*          pCreateInfo,
    const VkAllocationCallbacks*                pAllocator,
    VkVideoSessionKHR*                          pVideoSession);

Parameters

  • device is the logical device that creates the decode or encode session object.

  • pCreateInfo is a pointer to a VkVideoSessionCreateInfoKHR structure containing parameters specifying the creation of the decode or encode session.

  • pAllocator controls host memory allocation as described in the Memory Allocation chapter.

  • pVideoSession is a pointer to a VkVideoSessionKHR structure specifying the decode or encode video session object which will be created by this function when it returns VK_SUCCESS

Description

Valid Usage (Implicit)

  • VUID-vkCreateVideoSessionKHR-device-parameter
    device must be a valid VkDevice handle

  • VUID-vkCreateVideoSessionKHR-pCreateInfo-parameter
    pCreateInfo must be a valid pointer to a valid VkVideoSessionCreateInfoKHR structure

  • VUID-vkCreateVideoSessionKHR-pAllocator-parameter
    If pAllocator is not NULL, pAllocator must be a valid pointer to a valid VkAllocationCallbacks structure

  • VUID-vkCreateVideoSessionKHR-pVideoSession-parameter
    pVideoSession must be a valid pointer to a VkVideoSessionKHR handle

Return Codes
On success, this command returns

  • VK_SUCCESS

On failure, this command returns

  • VK_ERROR_OUT_OF_HOST_MEMORY

  • VK_ERROR_OUT_OF_DEVICE_MEMORY

  • VK_ERROR_INITIALIZATION_FAILED

  • VK_ERROR_VIDEO_STD_VERSION_NOT_SUPPORTED_KHR

See Also

VK_KHR_video_queue, VkAllocationCallbacks, VkDevice, VkVideoSessionCreateInfoKHR, VkVideoSessionKHR

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 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0