TDA4VM-Q1: Multigraph with Multi-view Application

Hi Vyom,

What is the input to the mosaic node currently? Is it only one cam on left and srv on the other?

Vyom Mishra1 said:

I am using a mosaic node to divide the display, but looking for a selectable camera view on the left side graph i.e., Semantic Segmentation graph only through keyboard input.

Could you elaborate here?

Regards,

Nikhil

Hi Sir,

Input to the mosaic is both SD and SVM.

Yes, I have passed index 0 to the left side graph(SD), and SRV is working on the other side.

    vx_int32 idx = 0;
    obj->imgMosaicObj.input_arr[idx++] = obj->postProcObj.output_image_arr;
#ifdef SRV
    obj->imgMosaicObj.input_arr[idx++] =  obj->srvobj.out_arr;
#endif

Thanks and Regards,

Vyom Mishra

Hi Vyom,

obj->imgMosaicObj.input_arr[idx++] = obj->postProcObj.output_image_arr;

You are passing an object array here. Does this mean that mosaic node has all 4 sensor data in the first channel, but you are not providing that output?

May I know what is your required usecase?

Regards,

Nikhil

Hi Sir,

Thanks for the quick response!

You are passing an object array here. Does this mean that mosaic node has all 4 sensor data (YES) in the first channel, but you are not providing that output? 

I am passing an object array from post-processing of Semantic Segmentation to the first window which has all four sensor processed data, I am assuming that in the selection of one of the sensors , it should display one camera output to the display by selecting one view through keyboard input without affecting the SRV on the right side.

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 grid_size = calc_grid_size(numCh);

    imgMosaicObj->out_width    = DISPLAY_WIDTH;
    imgMosaicObj->out_height   = DISPLAY_HEIGHT;
    imgMosaicObj->num_inputs   = 1;

    idx = 0;

    tivxImgMosaicParamsSetDefaults(&imgMosaicObj->params);

    for(ch = 0; ch < numCh; ch++)
    {
        vx_int32 winX = ch%grid_size;
        vx_int32 winY = ch/grid_size;

        imgMosaicObj->params.windows[idx].startX  = (winX * (in_width/grid_size));//350;
        imgMosaicObj->params.windows[idx].startY  = (winY * (in_height/grid_size)); //178;
        imgMosaicObj->params.windows[idx].width   = in_width/grid_size;
        imgMosaicObj->params.windows[idx].height  = in_height/grid_size;
        imgMosaicObj->params.windows[idx].input_select   = 0;
        idx++;
    }

    imgMosaicObj->params.num_windows  = idx;

    /* Number of time to clear the output buffer before it gets reused*/
    imgMosaicObj->params.clear_count  = APP_BUFFER_Q_DEPTH;
}

please let me know how to pass input to the mosaic for my usecase.

May I know what is your required usecase?

I am using a mosaic node to divide the display, but looking for a selectable camera view on the left side graph i.e., Semantic Segmentation graph only through keyboard input and SRV on right side

Thanks and Regards,

Vyom Mishra

Hi Vyom,

Vyom Mishra1 said:

but when I press key for switching the active channel

May I know how have you implemented this?

Regards,

Nikhil

Dear Sir,

Also enabled "tivxKernelImgMosaicMscControl" in the img_proc node present in the R5F folder

Thanks and Regards,

Vyom Mishra

Hi,

The mosaic has all the 4 images already in the target implementation (unlike display node which had only one, and then you had to switch using the control command)

Can you show be what is the changes that you did in the target side to achieve this in mosaic node?

Regards,

Nikhil

Dear Sir,

My expectation is, that when I switch the camera it should have only one output displayed with a mosaic instead of two copies. Is it happening due to two inputs to gthe raph?

How can it be resolved? Please guide for the same.

Thanks and Regards,

Vyom Mishra

Ok,

So you are modifying channel_select here.

So can you create only 2 windows (i.e. idx = 2 in imgMosaicObj->params.windows[idx]) and then do the same what you are doing now?

i.e. 1 window for The cam and 2nd window for SRV

Regards,

Nikhil

Hi Sir,

I have already tried that, below error is faced during the pressing of the other camera key

 Enter Choice: [MCU2_0]     61.493940 s:  VX_ZONE_ERROR:[tivxKernelImgMosaicMscDrvPrepare:1034] Fvid2_control Failed: Set Params
[MCU2_0]     61.527404 s:  VX_ZONE_ERROR:[tivxKernelImgMosaicMscDrvPrepare:1034] Fvid2_control Failed: Set Params

Thanks and Regards,

Vyom Mishra

Hi Sir,

Any suggestions to resolve this multi-output of the selectable view?

Thanks and Regards,

Vyom Mishra

Hi Vyom,

I see that you have clicked the issue as resolved. Did you resolve this issue?

Regards,

Nikhil