DEEPSTREAM 5.0 draw circles

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

Are there any examples that show how to draw circles on frames?

3

Hi
Here is one example, please change accordingly for your needs.
add below code under nvds_add_obj_meta_to_frame(frame_meta, obj_meta, parent_obj_meta);
in source sources/gst-plugins/gst-nvinfer/gstnvinfer_meta_utils.cpp
build the plugin, and remember copy to /opt/nvidia/deepstream/deepstream-4.0/lib/gst-plugins/, backup original one.

display_meta = nvds_acquire_display_meta_from_pool (batch_meta);
NvOSD_CircleParams *circle_params = display_meta->circle_params;
for ( int j=0; j < 1; j++ )
{
   circle_params[j].xc =  50;
   circle_params[j].yc =  50;
   circle_params[j].radius = 30;
   circle_params[j].circle_color = (NvOSD_ColorParams){0.0, 1.0, 0.0, 1.0};
   display_meta->num_circles ++; 
}
4

Many thanks.