hi_chassis_param

Function

Defines the transparent chassis configuration information.

Definition

typedef struct  {
    hi_bool chassis_en;
    hi_vpc_crop_region chassis_region;
    hi_u8 *blend_table_address;
    hi_u32 blend_table_size;
    hi_u8 *chassis_pic_blend_table_address; 	    
    hi_u32 chassis_pic_blend_table_size; 	     
    hi_transform_config affine_transform_conf; 
    hi_void *user_data;     
    hi_s32 (*adjust_brightness_callback)(
        hi_void *user_data,          
        hi_vpc_pic_info *stitching_pic, 	         
        hi_vpc_pic_info *chassis_pic);
    hi_u32 reserved[4];
} hi_chassis_param;

For details about basic data types hi_bool, hi_u8, hi_u32, hi_s32, and hi_void, see Basic Data Types.

Members

Member	Description
chassis_en	Whether to enable transparent chassis. HI_FALSE: Disables this function (default). HI_TRUE: Enables this function.
chassis_region	Position information of the transparent chassis. For details, see hi_vpc_crop_region.
blend_table_address	Blend table address, which is used to update chassis key frames.
blend_table_size	Buffer size of the blend table. The value must be greater than or equal to the value of chassis_region.crop_width × chassis_region.crop_height.
chassis_pic_blend_table_address	Address of the chassis blend table, which is used to blend the current frame with the surround-view stitching image.
chassis_pic_blend_table_size	Memory size of the chassis fusion table. The value must be greater than or equal to the value of chassis_region.crop_width × chassis_region.crop_height.
affine_transform_conf	Affine transformation configuration. For details, see hi_transform_config.
user_data	User-defined data.
adjust_brightness_callback	Callback function for adjusting the chassis brightness. If the callback function is a null pointer, brightness adjustment is not required. stitching_pic indicates the surround-view image information, and chassis_pic indicates the chassis image information. In addition, the API assigns the user-defined data specified by hi_chassis_param.user_data to user_data in the callback function. Only the following image formats are supported: HI_PIXEL_FORMAT_VUY_PACKED_444 = 150, // VUY444 Packed 8bit
reserved	Reserved. The value is fixed at 0.

Parent topic: VPC Image Processing