Structures in VpcUserImageConfigure

The structures are defined in the ddk/include/inc/dvpp/Vpc.h file in the DDK installation directory.

VpcUserRoiConfigure structure

Member Variable	Description
VpcUserRoiInputConfigure inputConfigure	User ROI input configuration. For details, see VpcUserRoiInputConfigure structure. If the 8K image scaling function is implemented, this parameter does not need to be set.
VpcUserRoiOutputConfigure outputConfigure	User ROI output configuration. For details, see VpcUserRoiOutputConfigure structure.
VpcUserRoiConfigure* next	Next user ROI configuration. If the single-image multi-ROI mode is used, configure this parameter. Otherwise, set this parameter to NULL. The default value is NULL.
uint64_t reserve1	Reserved

VpcCompressDataConfigure structure

Member Variable	Description
uint64_t lumaHeadAddr	Header address of the Y component
uint64_t chromaHeadAddr	Header address of the U and V components
uint32_t lumaHeadStride	Header stride of the Y component, which must be the same as the value of stride_head in the FRAME structure.
uint32_t chromaHeadStride	Header stride of the U and V components, which must be the same as the value of stride_head in the FRAME structure.
uint64_t lumaPayloadAddr	Payload address of the Y component
uint64_t chromaPayloadAddr	Payload address of the U and V components
uint32_t lumaPayloadStride	Payload stride of the Y component, which must be the same as the value of stride_payload in the FRAME structure.
uint32_t chromaPayloadStride	Payload stride of the U and V components, which must be the same as the value of stride_payload in the FRAME structure.

VpcUserYuvSum structure

VpcUserPerformanceTuningParameter structure

VpcUserRoiInputConfigure structure

Member Variable	Description
VpcUserCropConfigure cropArea	Input data configuration of the cropped area. For details, see VpcUserCropConfigure structure.
uint64_t reserve1	Reserved

VpcUserRoiOutputConfigure structure

Member Variable	Description
uint8_t* addr	Start address of the output image You are advised to allocate the buffer by calling HIAI_DVPP_DMalloc provided by Matrix. The allocated buffer must meet the DVPP requirements, that is, the buffer addresses of the input and output images must be in the same 4 GB space, and the start addresses must be 16-pixel aligned. For details about HIAI_DVPP_DMalloc, see Matrix API Reference.
uint32_t bufferSize	Output buffer size calculated based on the YUV420SP format
uint32_t widthStride	Width stride of the output image, which must be 16-pixel aligned. The minimum width stride is 32, and the maximum width stride is 4096.
uint32_t heightStride	Height stride of the output image, which must be 2-pixel aligned. The minimum height stride is 6, and the maximum height stride is 4096. If the output is a YUV420SP image, you need to calculate the start addresses of the U and V data based on the value of heightStride.
VpcUserCropConfigure outputArea	Coordinates of the output area specified by the user. For details, see VpcUserCropConfigure structure. If the 8K image scaling function is implemented, this parameter does not need to be set.
uint64_t reserve1	Reserved

VpcUserCropConfigure structure

For details about the top offset, bottom offset, left offset, and right offset, see Table 1.

Member Variable	Description
uint32_t leftOffset	Left offset. The value must be an even number. The left offset of the overwritten area relative to the output image is 16-pixel aligned.
uint32_t rightOffset	Right offset. The value must be an odd number.
uint32_t upOffset	Top offset. The value must be an even number.
uint32_t downOffset	Bottom offset. The value must be an odd number.
uint64_t reserve1	Reserved