Problem of Using Tuning Tool output on the target platform

Tool/software:

Hello,

We are in the process of tuning the ISP (SDK 09_01_00_22) for my own sensor.

Using the app_single_cam software, we can capture RAW images and YUV images, but there is an issue with white balance. Therefore, the following steps were taken:

1. I followed the AWB Plugin Guide in DCC to perform white balance calibration for the camera and generated the mycamera_awb_alg_ti3_tuning.xml file. And put it in ti-processor-sdk-rtos-j721s2-evm-09_01_00_06/imaging/sensor_drv/src/mycamera/dcc_xmls

2. Used generate_dcc.sh to generate the dcc_2a_mycamera.h file.

3. Added my camera’s configuration in the app_iss_common.c file (in the functions appIssGetDCCSize2A and appIssGetDCCBuff2A), run make imaging_scrub & make vision_apps_scrub then make imaging&make vision_apps
   but the white balance is still not correct.

I printed out DCCSize2A, found that the size is the same as dcc_2a_imx390, not my expected value (25587)."sensor name : mycamera,size : 22321,sensor_wdr_mode:0. "

 dcc_buff_size_driver = appIssGetDCCSize2A(obj->sensor_name, sensor_wdr_mode);
 printf("sensor name : %s,size : %d,sensor_wdr_mode:%u\n",obj->sensor_name,dcc_buff_size_driver,sensor_wdr_mode);

Even after I forcibly modified both the size and buffer to match my own settings, the white balance is still incorrect.

//dcc_buff_size_driver = appIssGetDCCSize2A(obj->sensor_name, sensor_wdr_mode);
dcc_buff_size_driver = DCC_2A_mycamera_DCC_CFG_NUM_ELEM;
    
//status = appIssGetDCCBuff2A(obj->sensor_name, sensor_wdr_mode,  dcc_2a_buf, dcc_buff_size_driver);
memcpy(dcc_2a_buf, dcc_2a_mycamera_linear, dcc_buff_size_driver);

I saved RAW and YUV images under the following three conditions:

1.dcc_buff_size_driver = -1

2.dcc_buff_size_driver = appIssGetDCCSize2A(obj->sensor_name, sensor_wdr_mode);
status = appIssGetDCCBuff2A(obj->sensor_name, sensor_wdr_mode, dcc_2a_buf, dcc_buff_size_driver);  

3.dcc_buff_size_driver = DCC_2A_mycamera_DCC_CFG_NUM_ELEM;
memcpy(dcc_2a_buf, dcc_2a_mycamera_linear, dcc_buff_size_driver);  

RAW_YUV_IMG.zip

By the way, in the function appDccUpdatefromFS, is the break statement missing in the case blocks?

int32_t appDccUpdatefromFS(char* sensor_name, uint8_t wdr_mode,
                        vx_node node_viss, uint32_t viss_node_index,
                        vx_node node_aewb, uint32_t aewb_node_index,
                        vx_node node_ldc, uint32_t ldc_node_index,
                        vx_context context)
{
    char dcc_dir_path[MAX_FOLDER_NAME_LEN];
     char op_mode[8];
    int dcc_num_bytes;
    int dcc_bytes_read;
    uint8_t * dcc_buf;
    switch(wdr_mode)
    {
        case 0:
            /*Linear mode*/
            snprintf(op_mode, 8, "%s", "linear");
        default:
            /*WDR mode*/
            snprintf(op_mode, 8, "%s", "wdr");
    }