C Specification

When a video session parameters object is created with the codec operation VK_VIDEO_CODEC_OPERATION_ENCODE_AV1_BIT_KHR, the VkVideoSessionParametersCreateInfoKHR::pNext chain must include a VkVideoEncodeAV1SessionParametersCreateInfoKHR structure specifying the contents of the object.

The VkVideoEncodeAV1SessionParametersCreateInfoKHR structure is defined as:

// Provided by VK_KHR_video_encode_av1
typedef struct VkVideoEncodeAV1SessionParametersCreateInfoKHR {
    VkStructureType                               sType;
    const void*                                   pNext;
    const StdVideoAV1SequenceHeader*              pStdSequenceHeader;
    const StdVideoEncodeAV1DecoderModelInfo*      pStdDecoderModelInfo;
    uint32_t                                      stdOperatingPointCount;
    const StdVideoEncodeAV1OperatingPointInfo*    pStdOperatingPoints;
} VkVideoEncodeAV1SessionParametersCreateInfoKHR;

Members

  • 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 parameters of the AV1 sequence header entry to store in the created object.

  • pStdDecoderModelInfo is NULL or a pointer to a StdVideoEncodeAV1DecoderModelInfo structure specifying the AV1 decoder model information to store in the created object.

  • stdOperatingPointCount is the number of elements in the pStdOperatingPoints array.

  • pStdOperatingPoints is NULL or a pointer to an array of stdOperatingPointCount number of StdVideoEncodeAV1OperatingPointInfo structures specifying the AV1 operating point information to store in the created object. Each element i specifies the parameter values corresponding to element i of the syntax elements defined in section 6.4 of the AV1 Specification.

Description

Valid Usage
  • VUID-VkVideoEncodeAV1SessionParametersCreateInfoKHR-pStdSequenceHeader-10288
    pStdSequenceHeader->flags.film_grain_params_present must be zero

Valid Usage (Implicit)
  • VUID-VkVideoEncodeAV1SessionParametersCreateInfoKHR-sType-sType
    sType must be VK_STRUCTURE_TYPE_VIDEO_ENCODE_AV1_SESSION_PARAMETERS_CREATE_INFO_KHR

  • VUID-VkVideoEncodeAV1SessionParametersCreateInfoKHR-pStdSequenceHeader-parameter
    pStdSequenceHeader must be a valid pointer to a valid StdVideoAV1SequenceHeader value

  • VUID-VkVideoEncodeAV1SessionParametersCreateInfoKHR-pStdDecoderModelInfo-parameter
    If pStdDecoderModelInfo is not NULL, pStdDecoderModelInfo must be a valid pointer to a valid StdVideoEncodeAV1DecoderModelInfo value

  • VUID-VkVideoEncodeAV1SessionParametersCreateInfoKHR-pStdOperatingPoints-parameter
    If stdOperatingPointCount is not 0, and pStdOperatingPoints is not NULL, pStdOperatingPoints must be a valid pointer to an array of stdOperatingPointCount StdVideoEncodeAV1OperatingPointInfo values

See Also

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.

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