How to handle if RTSP url is invalid or it got disrupted in between?

Accelerated Computing Intelligent Video Analytics DeepStream SDK
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Please provide complete information as applicable to your setup.

• Hardware Platform (Jetson / GPU) GPU
• DeepStream Version Deepstream 6.2
• Issue Type( questions, new requirements, bugs) question
• Language python

I was trying out runtim_source_add_delete in deepstream Python apps, and I added RTSP streams. Sometimes due to network issues or some other reason, the connection gets disrupted, and the application terminates. I am looking for some means to handle this issue, whether the inserted RTSP URL is incorrect or if the connection gets closed in between.

4

please refer to this topic.

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I still, get this error

gststruct=caps.get_structure(0)
AttributeError: 'NoneType' object has no attribute 'get_structure'

from the function def cb_newpad(decodebin,pad,data): ( runtime_source_add_delete code in deepstream python apps)

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from the error, the caps is empty.

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but i am providing the right rstp url

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i just replaced the uridecodebin with nvurisrcbin and added a additional line bin.set_property("uri",uri) in create_uridecode_bin() in runtime_source_add_delete code in deepstream python apps

and got this error

gststruct=caps.get_structure(0)
AttributeError: 'NoneType' object has no attribute 'get_structure'

from the function `def cb_newpad(decodebin,pad,data)

do I have to make any other changes if I replace uridecodebin with nvurisrcbin

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please refer to deepstream_test_3.py for nvurisrcbin’s using.

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i would like to add the source in runtime, if an invalid RTSP URL is added I get error at the bin.connect()

bin.connect("pad-added"cb_newpad,stream_ID)

def cb_newpad(self,decodebin,pad,data):
       logger.info("In cb_newpad\n")
       caps=pad.get_current_caps()
       gststruct=caps.get_structure(0)
       gstname=gststruct.get_name()

gststruct=caps.get_structure(0)
AttributeError: ‘NoneType’ object has no attribute ‘get_structure’

1 Like
11

Thanks for the sharing. can we know the caps’s struct size?

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pardon mee, i dont understand, did u mean the codec or video size?

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it seemed caps was null. I can’t reproduce this issue by testing deepstream_nvdsanalytics.py without code modification. for example, rtsp://127.0.0.1:8554/test is a valid RTSP source. when I tested rtsp://127.0.0.1:8554/test1, the app did not trigger cb_newpad function. here is the log:
log-93.txt (2.5 KB)

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running this command gives me a window with black screen
gst-launch-1.0 -v nvurisrcbin uri=rtsp://admin:123456@192.168.99.93 rtsp-reconnect-interval=5 ! nveglglessink

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can you narrow down this issue? it is camera problem or nvurisrcbin problem or pipeline isuse?

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i believe the issue is with nvurisrcbin because it works fine with uridecodebin

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  1. how did you test? is it black at the first frame? is it black after rtsp reconnection?
  2. can you dump some stream data? I will have a try. here is the command:
    gst-launch-1.0 rtspsrc location=rtsp://127.0.0.1:8554/test ! rtph264depay ! h264parse ! mux. mpegtsmux name=mux ! filesink location=output.ts
  3. I can’t reproduce the issue after testing my stream. here is the commandline:
    gst-launch-1.0 nvurisrcbin uri=rtsp://127.0.0.1:8554/test ! nvvideoconvert ! ‘video/x-raw(memory:NVMM), width=1920, height=1080, format=NV12’ ! nvv4l2h264enc bitrate=1000000 ! filesink location=test.264
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running this code for couple of seconds generated a file of almost 1MB

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running this code generated generated a file of 0 byte

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could you use that command to dump 3 minutes RTSP stream data and share with us? Thanks! we will use nvurisrcbin to check.

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only thing changed in the above command is the rtsp URL and this is the generated file
output.ts (7.4 MB)

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  1. I tested this output.ts in T4 + 6.2-devel docker container. nvurisrcbin can decode the file.
    test1 commandine: gst-launch-1.0 nvurisrcbin uri=file:///home/rec/output.ts ! fakesink
    test1.txt (2.0 KB)
    test2 commandline: gst-launch-1.0 nvurisrcbin uri=file:///home/rec/output.ts ! nvvideoconvert ! ‘video/x-raw(memory:NVMM), width=1920, height=1080, format=NV12’! nvv4l2h264enc bitrate=1000000 ! filesink location=test.264
    test2.txt (600 Bytes)

could you share more logs? please do “export GST_DEBUG=6” first to modify Gstreamer’s log level, then run again, you can redirect the logs to a file.

could you also provide this commandline’s GST_DEBUG=6 log?