Ticket Name: Integrating Vision Algorithm on Vision SDK TDA3

Query Text:
Other Parts Discussed in Thread: TDA2 In our project, we have algorithm for vision algorithm for adas camera monitoring system using in c. Which is already working in TDA2 EVM board. I need to integrated with framework which is based on Vision SDK provided by Texas Intruments. To under stand Vision SDK completely,i would like to do Image Negative. I have attached the image which was generated by VSDK user case generation Using user case generation, i have generated file adasens_issImageNegative_priv.c adasens_issImageNegative_priv.h My image negative input, output structure and function prototype are below. typedef struct { unsigned char *ptImageInput; //Input Image to unsigned int uiNoRows; unsigned int uiNoCols; }stImageNegativeInput; chains_vipSingleCameraEdgeDetection.c /*
 *******************************************************************************
 *
 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
 * ALL RIGHTS RESERVED
 *
 *******************************************************************************
 */

/*******************************************************************************
 *  INCLUDE FILES
 *******************************************************************************
 */
#include "chains_vipSingleCameraEdgeDetection_priv.h"
#include <tda2xx/include/bios_chains_common.h>


#define CAPTURE_SENSOR_WIDTH      (1280)
#define CAPTURE_SENSOR_HEIGHT     (720)

/**
 *******************************************************************************
 *
 *  \brief  SingleCameraEdgeDetectionObject
 *
 *        This structure contains all the LinksId's and create Params.
 *        The same is passed to all create, start, stop functions.
 *
 *******************************************************************************
*/
typedef struct {

    chains_vipSingleCameraEdgeDetectionObj ucObj;

    UInt32  captureOutWidth;
    UInt32  captureOutHeight;
    UInt32  displayWidth;
    UInt32  displayHeight;

    Chains_Ctrl *chainsCfg;

} Chains_VipSingleCameraEdgeDetectionAppObj;

/**
 *******************************************************************************
 *
 * \brief   Set Edge Detection Alg parameters
 *
 *          It is called in Create function.
 *          In this function alg link params are set
 *          The algorithm which is to run on core is set to
 *          baseClassCreate.algId. The input whdth and height to alg are set.
 *          Number of input buffers required by alg are also set here.
 *
 *
 * \param   pPrm    [IN]    AlgorithmLink_EdgeDetectionCreateParams
 * \param   chainsCfg    [IN]    Chains_Ctrl
 *
 *******************************************************************************
*/
Void chains_vipSingleCameraEdgeDetection_SetEdgeDetectionAlgPrms(
    AlgorithmLink_EdgeDetectionCreateParams *pPrm,
    Chains_Ctrl *chainsCfg) {
    pPrm->maxWidth    = CAPTURE_SENSOR_WIDTH;
    pPrm->maxHeight   = CAPTURE_SENSOR_HEIGHT;

    pPrm->numOutputFrames = 3;
}


/**
 *******************************************************************************
 *
 * \brief   Set link Parameters
 *
 *          It is called in Create function of the auto generated use-case file.
 *
 * \param pUcObj    [IN] Auto-generated usecase object
 * \param appObj    [IN] Application specific object
 *
 *******************************************************************************
*/
Void chains_vipSingleCameraEdgeDetection_SetAppPrms(chains_vipSingleCameraEdgeDetectionObj *pUcObj,
        Void *appObj) {
    Chains_VipSingleCameraEdgeDetectionAppObj *pObj
        = (Chains_VipSingleCameraEdgeDetectionAppObj *)appObj;

    pObj->captureOutWidth  = CAPTURE_SENSOR_WIDTH;
    pObj->captureOutHeight = CAPTURE_SENSOR_HEIGHT;
    ChainsCommon_GetDisplayWidthHeight(
        pObj->chainsCfg->displayType,
        &pObj->displayWidth,
        &pObj->displayHeight
    );

    ChainsCommon_SingleCam_SetCapturePrms(&(pUcObj->CapturePrm),
                                          CAPTURE_SENSOR_WIDTH,
                                          CAPTURE_SENSOR_HEIGHT,
                                          pObj->captureOutWidth,
                                          pObj->captureOutHeight,
                                          pObj->chainsCfg->captureSrc
                                         );

    ChainsCommon_SetGrpxSrcPrms(&pUcObj->GrpxSrcPrm,
                                pObj->displayWidth,
                                pObj->displayHeight
                               );


    ChainsCommon_SetDisplayPrms(&pUcObj->Display_VideoPrm,
                                &pUcObj->Display_GrpxPrm,
                                pObj->chainsCfg->displayType,
                                pObj->displayWidth,
                                pObj->displayHeight
                               );

    ChainsCommon_StartDisplayCtrl(
        pObj->chainsCfg->displayType,
        pObj->displayWidth,
        pObj->displayHeight
    );

    chains_vipSingleCameraEdgeDetection_SetEdgeDetectionAlgPrms
    (&pUcObj->Alg_EdgeDetectPrm,
     pObj->chainsCfg);
}

/**
 *******************************************************************************
 *
 * \brief   Start the capture display Links
 *
 *          Function sends a control command to capture and display link to
 *          to Start all the required links . Links are started in reverce
 *          order as information of next link is required to connect.
 *          System_linkStart is called with LinkId to start the links.
 *
 * \param   pObj  [IN] Chains_VipSingleCameraEdgeDetectionAppObj
 *
 * \return  SYSTEM_LINK_STATUS_SOK on success
 *
 *******************************************************************************
*/
Void chains_vipSingleCameraEdgeDetection_StartApp(Chains_VipSingleCameraEdgeDetectionAppObj *pObj) {
    Chains_memPrintHeapStatus();

    ChainsCommon_StartDisplayDevice(pObj->chainsCfg->displayType);

    ChainsCommon_StartCaptureDevice(
        pObj->chainsCfg->captureSrc,
        pObj->captureOutWidth,
        pObj->captureOutHeight,1
    );

    chains_vipSingleCameraEdgeDetection_Start(&pObj->ucObj);

    Chains_prfLoadCalcEnable(TRUE, FALSE, FALSE);
}

/**
 *******************************************************************************
 *
 * \brief   Delete the capture display Links
 *
 *          Function sends a control command to capture and display link to
 *          to delete all the prior created links
 *          System_linkDelete is called with LinkId to delete the links.
 *
 * \param   pObj   [IN]   Chains_VipSingleCameraEdgeDetectionAppObj
 *
 *******************************************************************************
*/
Void chains_vipSingleCameraEdgeDetection_StopAndDeleteApp(Chains_VipSingleCameraEdgeDetectionAppObj
        *pObj) {
    chains_vipSingleCameraEdgeDetection_Stop(&pObj->ucObj);
    chains_vipSingleCameraEdgeDetection_Delete(&pObj->ucObj);

    ChainsCommon_StopDisplayCtrl();
    ChainsCommon_StopCaptureDevice(pObj->chainsCfg->captureSrc);
    ChainsCommon_StopDisplayDevice(pObj->chainsCfg->displayType);

    /* Print the HWI, SWI and all tasks load */
    /* Reset the accumulated timer ticks */
    Chains_prfLoadCalcEnable(FALSE, TRUE, TRUE);
}

/**
 *******************************************************************************
 *
 * \brief   Single Channel Capture Display usecase function
 *
 *          This functions executes the create, start functions
 *
 *          Further in a while loop displays run time menu and waits
 *          for user inputs to print the statistics or to end the demo.
 *
 *          Once the user inputs end of demo stop and delete
 *          functions are executed.
 *
 * \param   chainsCfg       [IN]   Chains_Ctrl
 *
 *******************************************************************************
*/
Void Chains_vipSingleCameraEdgeDetection(Chains_Ctrl *chainsCfg) {
    char ch;
    UInt32 done = FALSE;
    Chains_VipSingleCameraEdgeDetectionAppObj chainsObj;

    chainsObj.chainsCfg = chainsCfg;

    chains_vipSingleCameraEdgeDetection_Create(&chainsObj.ucObj, &chainsObj);

    chains_vipSingleCameraEdgeDetection_StartApp(&chainsObj);

    while(!done) {
        ch = Chains_menuRunTime();

        switch(ch) {
            case '0':
                done = TRUE;
                break;
            case 'p':
            case 'P':
                ChainsCommon_PrintStatistics();
                chains_vipSingleCameraEdgeDetection_printStatistics(&chainsObj.ucObj);
                break;
            default:
                Vps_printf("\nUnsupported option '%c'. Please try again\n", ch);
                break;
        }
    }

    chains_vipSingleCameraEdgeDetection_StopAndDeleteApp(&chainsObj);

}

 typedef struct { unsigned char *ptImageOutput; }stImageNegativeOutput; void ImageNegative(&stImageNegatvieInput,&stImageNegativeOutput); Assume that, chains_vipSingleCameraEdgeDetection.c(attched with this) is performing image negative. I have to call the ImageNegative for each frame. Can you please tell me, where i have to exactly call my ImageNegative fuctions and initialize the input and output structures.

Responses:
Hi, Algorithm is integrated into Algorithm Link in Vision SDK. You have to create an algorithm link plug-in for your algorithm. Please refer to Chapter 4 in Vision SDK Development Guide. For example, you can refer to ~\VISION_SDK_02_xx_xx_xx\vision_sdk\examples\tda2xx\src\alg_plugins\edgedetection.