11.4. Data Types

11.4.1. GDC_TASK_ATTR_S

【Description】

Define the attributes of GDC TASK. GDC supports pixel formats such as NV21, NV12, and YUV400.

【Syntax】

 typedef struct _GDC_TASK_ATTR_S {
  VIDEO_FRAME_INFO_S stImgIn;
  VIDEO_FRAME_INFO_S stImgOut;
  CVI_U64 au64privateData[4];
  CVI_U64 reserved;
} GDC_TASK_ATTR_S;

【Member】

Member	Description
stImgIn	Input image properties
stImgOut	Output image properties
au64privateData	Task related private data
reserved	Reserved

【Note】

The image attributes must match the corresponding hardware attributes

【Related Data Type and Interface】

• VIDEO_FRAME_INFO_S

11.4.2. LDC_ATTR_S

【Description】

Define the Lens Distortion Correction (LDC) properties.

【Syntax】

 typedef struct _LDC_ATTR_S {
  CVI_BOOL bAspect; /* RW;Whether aspect ration  is keep */
  CVI_S32 s32XRatio; /* RW; Range: [0, 100], field angle ration of  horizontal,valid when bAspect=0.*/
  CVI_S32 s32YRatio; /* RW; Range: [0, 100], field angle ration of  vertical,valid when bAspect=0.*/
  CVI_S32 s32XYRatio; /* RW; Range: [0, 100], field angle ration of  all,valid when bAspect=1.*/
  CVI_S32 s32CenterXOffset;
  CVI_S32 s32CenterYOffset;
  CVI_S32 s32DistortionRatio;
  GRID_INFO_ATTR_S stGridInfoAttr;
} LDC_ATTR_S;

【Member】

Member	Description	Value Range
bAspect	Whether aspect ration is keep	bool
s32XRatio	Field angle ration of horizontal. Valid when bAspect=1.	0~100
s32YRatio	Field angle ration of vertical. Valid when bAspect=0.	0~100
s32XYRatio	Field angle ration of all,valid when bAspect=1.	0~100
s32CenterXOffset	Horizontal offset of the image center point relative to the physical center point.	-511~+511
s32CenterYOffset	Vertical offset of the image center point relative to the physical center point.	-511~+511
s32DistortionRatio	Correction strength Negative values for pincushion distortion. Positive values for barrel distortion.	-300~+500
stGridInfoAttr	gridinfo parameters.	/

【Note】

The image attributes must match the corresponding hardware attributes

【Related Data Type and Interface】

• VIDEO_FRAME_INFO_S

• GRID_INFO_ATTR_S

11.4.3. GRID_INFO_ATTR_S

【Description】

Define the GridInfo properties.

【Syntax】

 typedef struct _GRID_INFO_ATTR_S {
         CVI_BOOL Enable;
         char gridFileName[128];
         char gridBindName[128];
         CVI_BOOL isBlending;
         CVI_BOOL bEISEnable; /* enable EIS */
         uint8_t homoRgnNum;
} GRID_INFO_ATTR_S;

【Member】

Member	Description	Value Range
bEnable	Whether to enable GridInfo.	bool
gridFileName	GridInfo file name.	/
gridBindName	GridInfo binding name.	/
isBlending	Not used at the moment.	bool
bEISEnable	Not used at the moment.	bool
homoRgnNum	Not used at the moment.	/

【Note】

The image attributes must match the corresponding hardware attributes

【Related Data Type and Interface】

• LDC_ATTR_S