C Specification

The VkPhysicalDeviceOpticalFlowPropertiesNV structure is defined as:

// Provided by VK_NV_optical_flow
typedef struct VkPhysicalDeviceOpticalFlowPropertiesNV {
    VkStructureType                 sType;
    void*                           pNext;
    VkOpticalFlowGridSizeFlagsNV    supportedOutputGridSizes;
    VkOpticalFlowGridSizeFlagsNV    supportedHintGridSizes;
    VkBool32                        hintSupported;
    VkBool32                        costSupported;
    VkBool32                        bidirectionalFlowSupported;
    VkBool32                        globalFlowSupported;
    uint32_t                        minWidth;
    uint32_t                        minHeight;
    uint32_t                        maxWidth;
    uint32_t                        maxHeight;
    uint32_t                        maxNumRegionsOfInterest;
} VkPhysicalDeviceOpticalFlowPropertiesNV;

Members

  • sType is a VkStructureType value identifying this structure.

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

  • supportedOutputGridSizes are the supported VkOpticalFlowGridSizeFlagsNV which can be specified in VkOpticalFlowSessionCreateInfoNV::outputGridSize.

  • supportedHintGridSizes are the supported VkOpticalFlowGridSizeFlagsNV which can be specified in VkOpticalFlowSessionCreateInfoNV::hintGridSize.

  • hintSupported is a boolean describing whether using hint flow vector map is supported in an optical flow session.

  • costSupported is a boolean describing whether cost map generation is supported in an optical flow session.

  • bidirectionalFlowSupported is a boolean describing whether bi-directional flow generation is supported in an optical flow session.

  • globalFlowSupported is a boolean describing whether global flow vector map generation is supported in an optical flow session.

  • minWidth is the minimum width in pixels for images used in an optical flow session.

  • minHeight is the minimum height in pixels for images used in an optical flow session.

  • maxWidth is the maximum width in pixels for images used in an optical flow session.

  • maxHeight is the maximum height in pixels for images used in an optical flow session.

  • maxNumRegionsOfInterest is the maximum number of regions of interest which can be used in an optical flow session. If this maxNumRegionsOfInterest is 0, regions of interest are not supported in an optical flow session.

Description

If the VkPhysicalDeviceOpticalFlowPropertiesNV structure is included in the pNext chain of the VkPhysicalDeviceProperties2 structure passed to vkGetPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.

Valid Usage (Implicit)

  • VUID-VkPhysicalDeviceOpticalFlowPropertiesNV-sType-sType
    sType must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_OPTICAL_FLOW_PROPERTIES_NV

See Also

VK_NV_optical_flow, VkBool32, VkOpticalFlowGridSizeFlagsNV, VkStructureType

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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0