vkDestroyVideoSessionKHR

To destroy a video session, call:

void vkDestroyVideoSessionKHR(
    VkDevice device,
    VkVideoSessionKHR videoSession,
    const VkAllocationCallbacks* pAllocator);

device is the logical device that destroys the video session.
videoSession is the video session to destroy.
pAllocator controls host memory allocation as described in the Memory Allocation chapter.

All submitted commands that refer to videoSession must have completed execution

If VkAllocationCallbacks were provided when videoSession was created, a compatible set of callbacks must be provided here

If no VkAllocationCallbacks were provided when videoSession was created, pAllocator must be NULL

device must be a valid VkDevice handle

If videoSession is not VK_NULL_HANDLE, videoSession must be a valid VkVideoSessionKHR handle

If pAllocator is not NULL, pAllocator must be a valid pointer to a valid VkAllocationCallbacks structure

If videoSession is a valid handle, it must have been created, allocated, or retrieved from device