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Structures

VkVideoDecodeAV1SessionParametersCreateInfoKHR

Structure specifies AV1 decoder parameter set information

When a video session parameters object is created with the codec operation VK_VIDEO_CODEC_OPERATION_DECODE_AV1_BIT_KHR, the VkVideoSessionParametersCreateInfoKHR::pNext chain must include a VkVideoDecodeAV1SessionParametersCreateInfoKHR structure specifying the contents of the object.

The VkVideoDecodeAV1SessionParametersCreateInfoKHR structure is defined as:

typedef struct VkVideoDecodeAV1SessionParametersCreateInfoKHR {
    VkStructureType sType;
    const void* pNext;
    const StdVideoAV1SequenceHeader* pStdSequenceHeader;
} VkVideoDecodeAV1SessionParametersCreateInfoKHR;
  • sType is a VkStructureType value identifying this structure.
  • pNext is NULL or a pointer to a structure extending this structure.
  • pStdSequenceHeader is a pointer to a StdVideoAV1SequenceHeader structure describing the AV1 sequence header entry to store in the created object.

As AV1 video session parameters objects will only ever contain a single AV1 sequence header, this has to be specified at object creation time and such video session parameters objects cannot be updated using the vkUpdateVideoSessionParametersKHR command. When a new AV1 sequence header is decoded from the input video bitstream the application needs to create a new video session parameters object to store it.

Valid Usage (Implicit)

VUID-VkVideoDecodeAV1SessionParametersCreateInfoKHR-sType-sType

sType must be VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_SESSION_PARAMETERS_CREATE_INFO_KHR

VUID-VkVideoDecodeAV1SessionParametersCreateInfoKHR-pStdSequenceHeader-parameter

pStdSequenceHeader must be a valid pointer to a valid StdVideoAV1SequenceHeader value