TDA4VM-Q1: Multi Graph : Select Camera streaming for one graph

Part Number: TDA4VM-Q1

Dear Sir,

I have a scenario, 

The display is divided into two windows

window[0] = 4 cam semantic segmentation

window[1] = SRV

window[1] is a fixed view of SRV, but I need to display and select single-camera segmented output in window[0].

I am able to run the 4-cam app with a feature to select any camera for streaming.

I am sharing my two functionalities implemented and need your suggestion for switching only window[0] segmented output for each channel.

********Camera Switch Cases*************************************************************************************************
#ifdef SELECT
                case 'f':

                    channel_prms.active_channel = 0;
                    vxCopyUserDataObject(switch_ch_obj, 0, sizeof(tivx_select_channel_t), &channel_prms, VX_WRITE_ONLY, VX_MEMORY_TYPE_HOST);
                    refs1[0] = (vx_reference)switch_ch_obj;
                    tivxNodeSendCommand(obj->imgMosaicObj.node, 0,TIVX_SWITCH_CHANNEL, refs1, 1u);
                    printf("App Send Command Done!\n");
                    break;

                case 'b':
                    channel_prms.active_channel = 1;
                    vxCopyUserDataObject(switch_ch_obj, 0, sizeof(tivx_select_channel_t), &channel_prms, VX_WRITE_ONLY, VX_MEMORY_TYPE_HOST);
                    refs1[0] = (vx_reference)switch_ch_obj;
                    tivxNodeSendCommand(obj->imgMosaicObj.node, 0,TIVX_SWITCH_CHANNEL, refs1, 1u);
                    printf("App Send Command Done!\n");
                    break;

                case 'l':              
                    channel_prms.active_channel = 2;
                    vxCopyUserDataObject(switch_ch_obj, 0, sizeof(tivx_select_channel_t), &channel_prms, VX_WRITE_ONLY, VX_MEMORY_TYPE_HOST);
                    refs1[0] = (vx_reference)switch_ch_obj;
                    tivxNodeSendCommand(obj->imgMosaicObj.node, 0,TIVX_SWITCH_CHANNEL, refs1, 1u);
                    printf("App Send Command Done!\n");
                    break;

                case 'r':
                    channel_prms.active_channel = 3;
                    vxCopyUserDataObject(switch_ch_obj, 0, sizeof(tivx_select_channel_t), &channel_prms, VX_WRITE_ONLY, VX_MEMORY_TYPE_HOST);
                    refs1[0] = (vx_reference)switch_ch_obj;
                    tivxNodeSendCommand(obj->imgMosaicObj.node, 0,TIVX_SWITCH_CHANNEL, refs1, 1u);
                    printf("App Send Command Done!\n");
                    break;
#endif




****************************************************************************************************************************************
static void update_img_mosaic_defaults(ImgMosaicObj *imgMosaicObj, vx_uint32 in_width, vx_uint32 in_height, vx_int32 numCh)
{
    vx_int32 idx, ch;
    vx_int32 in = 0;
    imgMosaicObj->out_width    = DISPLAY_WIDTH;
    imgMosaicObj->out_height   = DISPLAY_HEIGHT;
    imgMosaicObj->num_inputs   = 2;

    idx = 0;

    tivxImgMosaicParamsSetDefaults(&imgMosaicObj->params);

    for(ch = 0; ch < numCh; ch++)
    {
        imgMosaicObj->params.windows[idx].startX  = 0;
        imgMosaicObj->params.windows[idx].startY  = 0;
        imgMosaicObj->params.windows[idx].width   = 1244;
        imgMosaicObj->params.windows[idx].height  = 1080;
        imgMosaicObj->params.windows[idx].input_select   = 0;
        idx++;
    }
    in++;

    imgMosaicObj->params.windows[idx].startX = 1245;
    imgMosaicObj->params.windows[idx].startY = 0;
    imgMosaicObj->params.windows[idx].width = 670;
    imgMosaicObj->params.windows[idx].height = 1080;
    imgMosaicObj->params.windows[idx].input_select = in;
    imgMosaicObj->params.windows[idx].channel_select = 0;
    idx++;
    in++;
    imgMosaicObj->params.num_windows = idx;

    imgMosaicObj->params.clear_count = 4;
}

Presently, I can get window[0] output as single cam index 0 and on the window[1] the SRV, but when I select the camera index for window[0] it does not switch.

Please suggest me the changes.

Thanks and Regards,

Vyom Mishra