What's the difference between camera_add and camera_streaming

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU)
GPU
• DeepStream Version
7.1
• JetPack Version (valid for Jetson only)
• TensorRT Version
• NVIDIA GPU Driver Version (valid for GPU only)
• Issue Type( questions, new requirements, bugs)
Question
• 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)

What’s the difference between camera_add and camera_streaming when adding a sensor?

1.curl -XPOST 'http://localhost:9000/api/v1/stream/add' -d '{
  "key": "sensor",
  "value": {
     "camera_id": "uniqueSensorID1",
     "camera_name": "front_door",
     "camera_url": "file:///opt/nvidia/deepstream/deepstream/samples/streams/sample_1080p_h264.mp4",
     "change": "camera_add",
     "metadata": {
         "resolution": "1920 x1080",
         "codec": "h264",
         "framerate": 30
     }
 },
 "headers": {
     "source": "vst",
     "created_at": "2021-06-01T14:34:13.417Z"
 }
}'

2.curl -XPOST 'http://localhost:9000/api/v1/stream/add' -d '{
 "key": "sensor",
 "event": {
     "camera_id": "uniqueSensorID1",
     "camera_name": "front_door",
     "camera_url": "rtsp://xyz.mp4",
     "change": "camera_streaming",
     "metadata": {
         "resolution": "1920 x1080",
         "codec": "h264",
         "framerate": 30
     }
 },
 "headers": {
     "source": "vst",
     "created_at": "2021-06-01T14:34:13.417Z"
 }
}'

https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_plugin_gst-nvmultiurisrcbin.html#add-a-new-stream-to-a-deepstream-pipeline

3

No difference. Please refer to s_stream_api_impl() function in /opt/nvidia/deepstream/deepstream/sources/gst-plugins/gst-nvmultiurisrcbin/gstdsnvmultiurisrcbin.cpp

1 Like
4

Thank you.
I asked about this because there are two different sets of documentation on this topic.

https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_RestServer.html#stream-add-remove

The curl command mentioned above at (2), is only supported when the sample application uses nvmultiurisrcbin.

5

They are the same.