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https://github.com/pabsan-0/libnvds_mqtt_proto
Protocol library for integrating MQTT into NVIDIA Deepstream 6.1
https://github.com/pabsan-0/libnvds_mqtt_proto
deepstream mqtt repos-gstreamer
Last synced: about 14 hours ago
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Protocol library for integrating MQTT into NVIDIA Deepstream 6.1
- Host: GitHub
- URL: https://github.com/pabsan-0/libnvds_mqtt_proto
- Owner: pabsan-0
- Created: 2022-09-14T06:29:19.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2022-09-14T07:11:20.000Z (over 2 years ago)
- Last Synced: 2024-11-23T10:27:36.142Z (2 months ago)
- Topics: deepstream, mqtt, repos-gstreamer
- Language: C++
- Homepage:
- Size: 5.86 KB
- Stars: 2
- Watchers: 1
- Forks: 4
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# libnvds_mqtt_proto
A protocol library to get NVIDIA Deepstream detections output through MQTT.
This repo holds a few pieces of code taken from the web plus a tested NVDS pipeline configuration, saving precious time of lots of trial and error.
## Installation
- Install MQTT broker `sudo apt install mosquitto`
- Install `paho.mqtt.c` & `paho.mqtt.cpp` with dependencies:
- Run `mkdir build-deps; bash mqtt_install.sh` for an auto-install
- Compile `libnvds_mqtt_proto.cpp` by running `make`.
- This generates `libnvds_mqtt_proto.so`, and we're good to go.
## Usage
- Configure your pipeline's `nvmsgbroker`:
- Link the protocol library `proto-lib="libnvds_mqtt_proto.so"`
- Configure your connection string to your liking `conn-str="127.0.0.1;9998[;NAME]"`
- Configure the publishing topic: `topic="hello"`
- Link the sample config file to `nvmsgconv`: `config="msgconv_config.txt"`
- Run Mosquitto to host the MQTT server
- Run your deepstream pipeline
Sample below:
```
gst-launch-1.0 \
v4l2src device=/dev/video0 \
! videoconvert ! 'video/x-raw,format=I420' \
! queue leaky=2 max-size-buffers=100 max-size-time=0 max-size-bytes=1 \
! nvvideoconvert \
! 'video/x-raw(memory:NVMM),format=(string)I420,width=640,height=480,framerate=30/1' \
! m.sink_0 \
nvstreammux name=m batch-size=1 width=640 height=480 nvbuf-memory-type=0 \
! nvvideoconvert \
! nvinfer config-file-path="config_infer_primary.txt" \
! tee name=teee \
teee. \
! nvmultistreamtiler width=640 height=480 \
! nvvideoconvert \
! nvdsosd \
! nveglglessink async=0 sync=0 \
teee. \
! queue leaky=1 \
! nvmsgconv msg2p-newapi=1 \
config="msgconv_config.txt" \
payload-type=1 \
frame-interval=1 \
! nvmsgbroker conn-str="127.0.0.1;9998" \
proto-lib="libnvds_mqtt_proto.so" \
topic="hello" ;
```
## Acknowledgements
- Paho install script taken [from here](https://github.com/eclipse/paho.mqtt.cpp/issues/136)
- Library main script taken [from here](https://forums.developer.nvidia.com/t/customize-gst-nvmsgbroker-adaptor-for-mqtt-using-paho-mqtt-c/163694)