VkVideoEncodeInfoKHR

The VkVideoEncodeInfoKHR structure is defined as:

typedef struct VkVideoEncodeInfoKHR {
    VkStructureType sType;
    const void* pNext;
    VkVideoEncodeFlagsKHR flags;
    VkBuffer dstBuffer;
    VkDeviceSize dstBufferOffset;
    VkDeviceSize dstBufferRange;
    VkVideoPictureResourceInfoKHR srcPictureResource;
    const VkVideoReferenceSlotInfoKHR* pSetupReferenceSlot;
    uint32_t referenceSlotCount;
    const VkVideoReferenceSlotInfoKHR* pReferenceSlots;
    uint32_t precedingExternallyEncodedBytes;
} VkVideoEncodeInfoKHR;

• sType is a VkStructureType value identifying this structure.
• pNext is a pointer to a structure extending this structure.
• flags is reserved for future use.
• dstBuffer is the destination video bitstream buffer to write the encoded bitstream to.
• dstBufferOffset is the starting offset in bytes from the start of dstBuffer to write the encoded bitstream to.
• dstBufferRange is the maximum bitstream size in bytes that can be written to dstBuffer, starting from dstBufferOffset.
• srcPictureResource is the video picture resource to use as the encode input picture.
• pSetupReferenceSlot is NULL or a pointer to a VkVideoReferenceSlotInfoKHR structure specifying the reconstructed picture information.
• referenceSlotCount is the number of elements in the pReferenceSlots array.
• pReferenceSlots is NULL or a pointer to an array of VkVideoReferenceSlotInfoKHR structures describing the DPB slots and corresponding reference picture resources to use in this video encode operation (the set of active reference pictures).
• precedingExternallyEncodedBytes is the number of bytes externally encoded by the application to the video bitstream and is used to update the internal state of the implementation’s rate control algorithm to account for the bitrate budget consumed by these externally encoded bytes.