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libnvds_mqtt_proto's Issues

How to set authentication for MQTT broker

Thank you for this extremely useful library!

I am able to get everything working as expected for my use case (I am doing inference using a custom model on a camera stream), BUT this only works when connecting to a MQTT Broker that requires no username/password. How do I set the username/password details if I want to connect to a broker that does require these?

In my DeepStream config, I have the following under the sink1 section:

[sink1]
enable=1
type=6
msg-broker-proto-lib=/opt/nvidia/deepstream/deepstream/lib/libnvds_mqtt_proto.so
msg-broker-conn-str=localhost;1883
msg-conv-config=config_messages.txt
topic=detections
msg-conv-payload-type=0
disable-msgconv=0
#msg-broker-config=config_broker.txt

The msg-broker-conn-str seems to be able to specify host;port;name only - no username and/or password. And yet I cannot remove this line.

I have commented out msg-broker-config for now because it seems to be ignored anyway. I tried including the following in config_broker.txt:

[message-broker]
conn-str=192.168.27.100;1883
hostname=192.168.27.100
username=someusername
password=somepassword
port=1883
topic=detections

Nothing in this file seems to be used anyway. Even intentional mistakes don't produce any errors. Yet I see no other way to configure authentication details. What am I missing?

paho build script fails for CPP

ubuntu@ai:~/test/build-deps/paho.mqtt.cpp$ cmake -DPAHO_WITH_SSL=TRUE -DPAHO_BUILD_DOCUMENTATION=FALSE -DPAHO_BUILD_STATIC=TRUE -DPAHO_BUILD_SHARED=FALSE         -DPAHO_MQTT_C_PATH=../paho.mqtt.c/ -DPAHO_MQTT_C_LIB=../paho.mqtt.c/src/libpaho.mqtt3as-static.a ${CROSS_COMPILE_ARG}
CMake Warning:
  No source or binary directory provided.  Both will be assumed to be the
  same as the current working directory, but note that this warning will
  become a fatal error in future CMake releases.


-- Configuring done
CMake Error at src/CMakeLists.txt:80 (add_library):
  Target "paho-mqttpp3-static" links to target
  "eclipse-paho-mqtt-c::paho-mqtt3as-static" but the target was not found.
  Perhaps a find_package() call is missing for an IMPORTED target, or an
  ALIAS target is missing?


-- Generating done
CMake Generate step failed.  Build files cannot be regenerated correctly.

Would you know, why?

How to specify "entries" (or none of them) in configuration?

I have a working setup where messages are being published and delivered via MQTT with no issues. I receive messages such as:

{
  "messageid" : "bd5c9e68-e6a2-4fc2-ba7a-c8aa957d8a15",
  "mdsversion" : "1.0",
  "@timestamp" : "2024-01-02T14:18:14.853Z",
  "place" : null,
  "sensor" : null,
  "analyticsModule" : null,
  "object" : {
    "id" : "18446744073709551615",
    "speed" : 0.0,
    "direction" : 0.0,
    "orientation" : 0.0,
    "inhale" : {
    },
    "bbox" : {
      "topleftx" : 68,
      "toplefty" : 244,
      "bottomrightx" : 143,
      "bottomrighty" : 321
    },
    "location" : {
      "lat" : 0.0,
      "lon" : 0.0,
      "alt" : 0.0
    },
    "coordinate" : {
      "x" : 0.0,
      "y" : 0.0,
      "z" : 0.0
    }
  },
  "event" : {
    "id" : "ea23f687-4984-406f-a8df-40ba1e02e95c",
    "type" : "entry"
  },
  "videoPath" : ""
}

The presence of the key "inhale" is all that I'm really interested in.

This is fine, but the deepstream-test5-app is throwing errors every frame where detection occurs, such as:

No entry for place0 in configuration file
No entry for sensor0 in configuration file
No entry for analytics0 in configuration file

My message config file is exactly as per the sample at https://github.com/pabsan-0/libnvds_mqtt_proto/blob/main/msgconv_config.txt but in any case even if I change (or completely remove) the contents of this file, I get exactly the same error messages.

Where are these "entries" meant to be defined? And how do I turn them off or just ignore them?

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