Please provide complete information as applicable to your setup.
• Hardware Platform (Jetson / GPU) GPU
• DeepStream Version 5.0.1
• JetPack Version (valid for Jetson only)
• TensorRT Version 7.0.0.1
• NVIDIA GPU Driver Version (valid for GPU only) 450
• Issue Type( questions, new requirements, bugs) questions
• 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)
Hi, I want to customize kafka message in deepstream python test4 app, trying to add a new attribute to NvDsVehicleObject in nvdsmeta_schma.h as follows:
typedef struct NvDsVehicleObject {
gchar *type;
gchar *make;
gchar *model;
gchar *color;
gchar *region;
gchar *license;
gchar *imgpath; /**< THE NEW ATTRIBUTE I ADD. Holds a pointer to the image snapshot path. */
} NvDsVehicleObject;
I replace the nvdsmeta_schma.h in /opt/nvidia/deepstream/deepstream-5.0/sources/includes with the new one, and modify the message processing part in nvmsgconv.cpp, for example:
static gchar*
generate_deepstream_message_minimal (NvDsMsg2pCtx *ctx, NvDsEvent *events, guint size)
{
......
if (meta->extMsg && meta->extMsgSize) {
// Attach secondary inference attributes.
switch (meta->objType) {
case NVDS_OBJECT_TYPE_VEHICLE: {
NvDsVehicleObject *dsObj = (NvDsVehicleObject *) meta->extMsg;
if (dsObj) {
ss << "|#|" << to_str(dsObj->type) << "|" << to_str(dsObj->make) << "|"
<< to_str(dsObj->model) << "|" << to_str(dsObj->color) << "|" << to_str(dsObj->license)
<< "|" << to_str(dsObj->region) << "|" << meta->confidence << "|" << to_str(dsObj->imgpath);
}
}
/*add the imgpath to the end of message string*/
Run my app, but it raise an error:
Traceback (most recent call last):
File "deepstream_test_4_custom_msg.py", line 304, in osd_sink_pad_buffer_probe
msg_meta = generate_event_msg_meta(msg_meta, obj_meta.class_id)
File "deepstream_test_4_custom_msg.py", line 195, in generate_event_msg_meta
obj = generate_vehicle_meta(obj)
File "deepstream_test_4_custom_msg.py", line 164, in generate_vehicle_meta
obj.imgpath = "testttttttttttttttttttt.jpg"
AttributeError: 'pyds.NvDsVehicleObject' object has no attribute 'imgpath'
Seems the new attribute didn’t add successfully, and I don’t know if I have to recompile the pyds.so, so how to add a new object type attribute in deepstream python app? Thanks everyone.