• Hardware Platform (Jetson / GPU)
T4
• DeepStream Version
5.1
• TensorRT Version
7.2.3
• NVIDIA GPU Driver Version (valid for GPU only)
460.32.03
Hello, I have a question.
This is my code.
for (l_obj = frame_meta->obj_meta_list; l_obj != NULL;
l_obj = l_obj->next) {
obj_meta = (NvDsObjectMeta *) (l_obj->data);
// Access attached user meta for each object
for (NvDsMetaList *l_user_meta = obj_meta->obj_user_meta_list; l_user_meta != NULL;
l_user_meta = l_user_meta->next) {
NvDsUserMeta *user_meta = (NvDsUserMeta *) (l_user_meta->data);
g_print (“nvdsanalytics_meta insert_qry user_meta->base_meta.meta_type : %d\n”, user_meta->base_meta.meta_type);
if(user_meta->base_meta.meta_type == NVDS_USER_OBJ_META_NVDSANALYTICS)
{
NvDsAnalyticsObjInfo * user_meta_data = (NvDsAnalyticsObjInfo *)user_meta->user_meta_data;
g_print (“nvdsanalytics_meta insert_qry user_meta_data->unique_id %d\n”, user_meta_data->unique_id);
g_print (“nvdsanalytics_meta insert_qry user_meta_data->dirStatus.length() %d\n”, user_meta_data->dirStatus.length());
if (user_meta_data->dirStatus.length()){
g_print (“nvdsanalytics_meta insert_qry object %lu moving in %s\n”, obj_meta->object_id, user_meta_data->dirStatus.c_str());
}
else {
g_print (“nvdsanalytics_meta insert_qry user_meta_data->dirStatus.length() is NULL!!!\n”);
}
}
}
}
there’s something wrong. why dirStatus is always got NULL value?
If NvDsAnalyticsObjInfo is NULL, how to get this?
and I have one more question.
how to use lcStatus ?
here’s define code.
/**
- Holds a set of nvdsanalytics object level metadata.
*/
typedef struct
{
/** Holds the array of ROI labels in which object is present /
std::vector std::string roiStatus;
/* Holds the array of OverCrowding labels in which object is present /
std::vector std::string ocStatus;
/* Holds the array of line crossing labels which object has crossed /
std::vector std::string lcStatus;
/* Holds the direction string for the tracked object /
std::string dirStatus;
/* Holds unique identifier for nvdsanalytics instance */
guint unique_id;
} NvDsAnalyticsObjInfo;
If you got the reference or sample code, please share it to me.
thanks for read my article and help me.