Deepstream-test3 osd not work

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

Please provide complete information as applicable to your setup.

**• Hardware Platform (Jetson / GPU)**Jetson
• DeepStream Version5.1
• JetPack Version (valid for Jetson only)
• TensorRT Version7.1
• NVIDIA GPU Driver Version (valid for GPU only)
**• Issue Type( questions, new requirements, bugs)**bugs
• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)

I just modify below code,but the text not show in the screen.

/* By default, OSD process-mode is set to CPU_MODE. To change mode, set as:

  • 1: GPU mode (for Tesla only)
  • 2: HW mode (For Jetson only)
    */
    #define OSD_PROCESS_MODE 2

/* By default, OSD will not display text. To display text, change this to 1 */
#define OSD_DISPLAY_TEXT 1

static GstPadProbeReturn
tiler_src_pad_buffer_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer u_data)
{
GstBuffer *buf = (GstBuffer *) info->data;
guint num_rects = 0;
NvDsObjectMeta *obj_meta = NULL;
guint vehicle_count = 0;
guint person_count = 0;
NvDsMetaList * l_frame = NULL;
NvDsMetaList * l_obj = NULL;
NvDsDisplayMeta *display_meta = NULL;

NvDsBatchMeta *batch_meta = gst_buffer_get_nvds_batch_meta (buf);

for (l_frame = batch_meta->frame_meta_list; l_frame != NULL;
  l_frame = l_frame->next) {
    NvDsFrameMeta *frame_meta = (NvDsFrameMeta *) (l_frame->data);
    int offset = 0;
    for (l_obj = frame_meta->obj_meta_list; l_obj != NULL;
            l_obj = l_obj->next) {
        obj_meta = (NvDsObjectMeta *) (l_obj->data);
        if (obj_meta->class_id == PGIE_CLASS_ID_VEHICLE) {
            vehicle_count++;
            num_rects++;
        }
        if (obj_meta->class_id == PGIE_CLASS_ID_PERSON) {
            person_count++;
            num_rects++;
        }
    }
      g_print ("Frame Number = %d Number of objects = %d "
        "Vehicle Count = %d Person Count = %d\n",
        frame_meta->frame_num, num_rects, vehicle_count, person_count);

#if 1
display_meta = nvds_acquire_display_meta_from_pool(batch_meta);
NvOSD_TextParams *txt_params = &display_meta->text_params[0];
txt_params->display_text = g_malloc0 (MAX_DISPLAY_LEN);
offset = snprintf(txt_params->display_text, MAX_DISPLAY_LEN, "Person = %d ", person_count);
offset = snprintf(txt_params->display_text + offset , MAX_DISPLAY_LEN, "Vehicle = %d ", vehicle_count);

    /* Now set the offsets where the string should appear */
    txt_params->x_offset = 10;
    txt_params->y_offset = 12;

    /* Font , font-color and font-size */
    txt_params->font_params.font_name = "Serif";
    txt_params->font_params.font_size = 10;
    txt_params->font_params.font_color.red = 1.0;
    txt_params->font_params.font_color.green = 1.0;
    txt_params->font_params.font_color.blue = 1.0;
    txt_params->font_params.font_color.alpha = 1.0;

    /* Text background color */
    txt_params->set_bg_clr = 1;
    txt_params->text_bg_clr.red = 0.0;
    txt_params->text_bg_clr.green = 0.0;
    txt_params->text_bg_clr.blue = 0.0;
    txt_params->text_bg_clr.alpha = 1.0;

    nvds_add_display_meta_to_frame(frame_meta, display_meta);

#endif

}
return GST_PAD_PROBE_OK;

}

3

Hey customre, Can you share your code as the markdown format or just upload the diff file with us, so it will be more easy to read what you change.

4

Thanks.

46c46
< #define OSD_PROCESS_MODE 2
---
> #define OSD_PROCESS_MODE 0
49c49
< #define OSD_DISPLAY_TEXT 1
---
> #define OSD_DISPLAY_TEXT 0
84d83
< //    todo osd not work
92c91
<     NvDsDisplayMeta *display_meta = NULL;
---
>     //NvDsDisplayMeta *display_meta = NULL;
99c98
<         int offset = 0;
---
>         //int offset = 0;
115c114
< #if 1
---
> #if 0
117c116
<         NvOSD_TextParams *txt_params  = &display_meta->text_params[0];
---
>         NvOSD_TextParams *txt_params  = &display_meta->text_params;
136c135
<         txt_params->text_bg_clr.red = 255.0;
---
>         txt_params->text_bg_clr.red = 0.0;
466,471c465,466
< //  tiler_src_pad = gst_element_get_static_pad (pgie, "src");
<     tiler_src_pad =gst_element_get_static_pad (nvosd, "sink");
< 
< 
< 
<     if (!tiler_src_pad)
---
>   tiler_src_pad = gst_element_get_static_pad (pgie, "src");
>   if (!tiler_src_pad)
5

So the text disappear when you apply the change?

6

It just show object box,but don’t show the text.

7

have you set the correct label for the detector?
In additon, does it work when you input only one stream?

8

yeah,I have set it.this label is work,but this function(nvds_add_display_meta_to_frame) not work.

9

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

Hey @1022556987, have you solved the problem?