VkVideoBeginCodingInfoKHR(3)

C Specification

The VkVideoBeginCodingInfoKHR structure is defined as:

// Provided by VK_KHR_video_queue
typedef struct VkVideoBeginCodingInfoKHR {
    VkStructureType                       sType;
    const void*                           pNext;
    VkVideoBeginCodingFlagsKHR            flags;
    VkVideoSessionKHR                     videoSession;
    VkVideoSessionParametersKHR           videoSessionParameters;
    uint32_t                              referenceSlotCount;
    const VkVideoReferenceSlotInfoKHR*    pReferenceSlots;
} VkVideoBeginCodingInfoKHR;

Members

sType is the type of this structure.
pNext is NULL or a pointer to a structure extending this structure.
flags is reserved for future use.
videoSession is the video session object to be bound for the processing of the video commands.
videoSessionParameters is VK_NULL_HANDLE or a handle of a VkVideoSessionParametersKHR object to be used for the processing of the video commands. If VK_NULL_HANDLE, then no video session parameters object is bound for the duration of the video coding scope.
referenceSlotCount is the number of elements in the pReferenceSlots array.
pReferenceSlots is a pointer to an array of VkVideoReferenceSlotInfoKHR structures specifying the information used to determine the set of bound reference picture resources for the video coding scope and their initial association with DPB slot indices.

Description

Limiting values are defined below that are referenced by the relevant valid usage statements of this structure.

Let VkOffset2D codedOffsetGranularity be the minimum alignment requirement for the coded offset of video picture resources. Unless otherwise defined, the value of the x and y members of codedOffsetGranularity are 0.
- If videoSession was created with an H.264 decode profile with a VkVideoDecodeH264ProfileInfoKHR::pictureLayout of VK_VIDEO_DECODE_H264_PICTURE_LAYOUT_INTERLACED_SEPARATE_PLANES_BIT_KHR, then codedOffsetGranularity is equal to VkVideoDecodeH264CapabilitiesKHR::fieldOffsetGranularity, as returned by vkGetPhysicalDeviceVideoCapabilitiesKHR for that video profile.

Valid Usage

VUID-VkVideoBeginCodingInfoKHR-videoSession-07237
videoSession must have memory bound to all of its memory bindings returned by vkGetVideoSessionMemoryRequirementsKHR for videoSession
VUID-VkVideoBeginCodingInfoKHR-slotIndex-04856
Each non-negative VkVideoReferenceSlotInfoKHR::slotIndex specified in the elements of pReferenceSlots must be less than the VkVideoSessionCreateInfoKHR::maxDpbSlots specified when videoSession was created
VUID-VkVideoBeginCodingInfoKHR-pPictureResource-07238
Each video picture resource corresponding to any non-NULL pPictureResource member specified in the elements of pReferenceSlots must be unique within pReferenceSlots
VUID-VkVideoBeginCodingInfoKHR-pPictureResource-07240
If the pPictureResource member of any element of pReferenceSlots is not NULL, then the image view specified in pPictureResource->imageViewBinding for that element must be compatible with the video profile videoSession was created with
VUID-VkVideoBeginCodingInfoKHR-pPictureResource-07241
If the pPictureResource member of any element of pReferenceSlots is not NULL, then the format of the image view specified in pPictureResource->imageViewBinding for that element must match the VkVideoSessionCreateInfoKHR::referencePictureFormat videoSession was created with
VUID-VkVideoBeginCodingInfoKHR-pPictureResource-07242
If the pPictureResource member of any element of pReferenceSlots is not NULL, then its codedOffset member must be an integer multiple of codedOffsetGranularity
VUID-VkVideoBeginCodingInfoKHR-pPictureResource-07243
If the pPictureResource member of any element of pReferenceSlots is not NULL, then its codedExtent member must be between minCodedExtent and maxCodedExtent, inclusive, videoSession was created with
VUID-VkVideoBeginCodingInfoKHR-flags-07244
If VkVideoCapabilitiesKHR::flags does not include VK_VIDEO_CAPABILITY_SEPARATE_REFERENCE_IMAGES_BIT_KHR, as returned by vkGetPhysicalDeviceVideoCapabilitiesKHR for the video profile videoSession was created with, then pPictureResource->imageViewBinding of all elements of pReferenceSlots with a non-NULL pPictureResource member must specify image views created from the same image
VUID-VkVideoBeginCodingInfoKHR-slotIndex-07245
If videoSession was created with a decode operation and the slotIndex member of any element of pReferenceSlots is not negative, then the image view specified in pPictureResource->imageViewBinding for that element must have been created with VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR
VUID-VkVideoBeginCodingInfoKHR-slotIndex-07246
If videoSession was created with an encode operation and the slotIndex member of any element of pReferenceSlots is not negative, then the image view specified in pPictureResource->imageViewBinding for that element must have been created with VK_IMAGE_USAGE_VIDEO_ENCODE_DPB_BIT_KHR
VUID-VkVideoBeginCodingInfoKHR-videoSession-07247
If videoSession was created with the video codec operation VK_VIDEO_CODEC_OPERATION_DECODE_H264_BIT_KHR, then videoSessionParameters must not be VK_NULL_HANDLE
VUID-VkVideoBeginCodingInfoKHR-videoSession-07248
If videoSession was created with the video codec operation VK_VIDEO_CODEC_OPERATION_DECODE_H265_BIT_KHR, then videoSessionParameters must not be VK_NULL_HANDLE
VUID-VkVideoBeginCodingInfoKHR-videoSession-07249
If videoSession was created with the video codec operation VK_VIDEO_CODEC_OPERATION_ENCODE_H264_BIT_EXT, then videoSessionParameters must not be VK_NULL_HANDLE
VUID-VkVideoBeginCodingInfoKHR-videoSession-07250
If videoSession was created with the video codec operation VK_VIDEO_CODEC_OPERATION_ENCODE_H265_BIT_EXT, then videoSessionParameters must not be VK_NULL_HANDLE
VUID-VkVideoBeginCodingInfoKHR-videoSessionParameters-04857
If videoSessionParameters is not VK_NULL_HANDLE, it must have been created with videoSession specified in VkVideoSessionParametersCreateInfoKHR::videoSession

Valid Usage (Implicit)

VUID-VkVideoBeginCodingInfoKHR-sType-sType
sType must be VK_STRUCTURE_TYPE_VIDEO_BEGIN_CODING_INFO_KHR
VUID-VkVideoBeginCodingInfoKHR-pNext-pNext
pNext must be NULL
VUID-VkVideoBeginCodingInfoKHR-flags-zerobitmask
flags must be 0
VUID-VkVideoBeginCodingInfoKHR-videoSession-parameter
videoSession must be a valid VkVideoSessionKHR handle
VUID-VkVideoBeginCodingInfoKHR-videoSessionParameters-parameter
If videoSessionParameters is not VK_NULL_HANDLE, videoSessionParameters must be a valid VkVideoSessionParametersKHR handle
VUID-VkVideoBeginCodingInfoKHR-pReferenceSlots-parameter
If referenceSlotCount is not 0, pReferenceSlots must be a valid pointer to an array of referenceSlotCount valid VkVideoReferenceSlotInfoKHR structures
VUID-VkVideoBeginCodingInfoKHR-videoSessionParameters-parent
If videoSessionParameters is a valid handle, it must have been created, allocated, or retrieved from videoSession
VUID-VkVideoBeginCodingInfoKHR-commonparent
Both of videoSession, and videoSessionParameters that are valid handles of non-ignored parameters must have been created, allocated, or retrieved from the same VkDevice

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

SPDX-License-Identifier: CC-BY-4.0

VkVideoBeginCodingInfoKHR(3) Manual Page

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C Specification

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