Nvinfer not processing frames from second stream

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

• Hardware Platform Jetson
• DeepStream Version 6.3
• JetPack Version 5.1
• TensorRT Version 5.1

I want to restart pipeline once FPS reaches 0, here’s my previous question about this.
I’m restarting pipeline by changing states:

pipeline.set_state(Gst.State.NULL)
pipeline.set_state(Gst.State.READY)
pipeline.set_state(Gst.State.PLAYING)

The problem I have now is that when application starts the FPS of one stream will be 0, for example:

2024-07-23 06:19:02.420 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 35.05, 'stream1': 0.0}***
2024-07-23 06:19:07.425 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 28.37, 'stream1': 0.0}***
2024-07-23 06:19:12.427 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 28.19, 'stream1': 0.0}***

After restart I also get this warning message:

nvinfer gstnvinfer.cpp:1728:gst_nvinfer_process_objects:<secondary1-nvinference-engine> Source info not found for source 1. Maybe the GST_NVEVENT_PAD_ADDED event was never generated for the source.
nvinfer gstnvinfer.cpp:1728:gst_nvinfer_process_objects:<secondary1-nvinference-engine> Source info not found for source 1. Maybe the GST_NVEVENT_PAD_ADDED event was never generated for the source.
nvinfer gstnvinfer.cpp:1728:gst_nvinfer_process_objects:<secondary1-nvinference-engine> Source info not found for source 1. Maybe the GST_NVEVENT_PAD_ADDED event was never generated for the source.

The pipeline looks like this now:

streammux → pgie → tracker → sgie → tiler → nvvidconv → nvosd → sink

I had to switch from nvurisrcbin to uridecodebin since nvurisrcbin will fail when I try to restart pipeline.

How can I make the nvinfer process multiple streams and how do I remove the GST_NVEVENT_PAD_ADDED warning?

3

It means there are no video source from source 1. There maybe still a problem with your rtsp source 1 even if you do that.

4

Hi, I removed tiler from the pipeline and now both of the streams work when I start the application. However, once I restart the application sometimes the FPS for both streams would be 0, while for others it would be normal:

2024-07-24 06:38:10.593 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 0.0, 'stream1': 0.0}***
2024-07-24 06:38:15.599 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 0.0, 'stream1': 0.0}***
2024-07-24 06:38:20.604 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 0.0, 'stream1': 0.0}***

2024-07-24 06:28:15.105 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 28.78, 'stream1': 28.78}***
2024-07-24 06:28:20.106 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 28.79, 'stream1': 28.79}***
2024-07-24 06:28:25.107 | INFO     | utils.FPS:perf_print_callback:106 - ***PERF: {'stream0': 28.59, 'stream1': 28.59}***

There are no errors displayed. Is there anything I can do to restart correctly?

But there is no problem with video source. Even when pipeline restarts correctly, and frames are processed I still get this warning.

5

Are you saying that sometimes all streams are good and sometimes they’re not?
Could you attach your simplified code so that we can try on our side?

6

Hi, it seems it was a hardware failure (cameras stopped working the other day, now they fixed it). I solved the issue with pipeline restart by creating a new one, more details here.

7

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