FastMOT: Unable to read video stream

Hi, I’m having this issue when running the main app.py I’ve tried with my webcam and external USB one and a path to a video everytime a get the same error. I’ve installed FastMOT on a Ubuntu 18.04 x86 machine and on a Jetson TX2 following the instructions provided here. I’ve checked that the camera works fine with a small script using python and opencv.

Here is the error that I recieve everytime:

python3 app.py --g --input_uri /dev/video0 --mot
Traceback (most recent call last):
  File "app.py", line 108, in <module>
    main()
  File "app.py", line 36, in main
    stream = fastmot.VideoIO(config['size'], config['video_io'], args.input_uri, args.output_uri)
  File "/home/raiza/programming/FastMOT/fastmot/videoio.py", line 53, in __init__
    raise RuntimeError('Unable to read video stream')
RuntimeError: Unable to read video stream

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 29 (10 by maintainers)

Most upvoted comments

@ed-muthiah This might be an issue with GStreamer. You can play around with the GStreamer pipeline here (for example increase latency to 100): https://github.com/GeekAlexis/FastMOT/blob/d1d0fd994acbe3be6a15fef024d347943f2445ca/fastmot/videoio.py#L201

From my experience, if the URL works with VLC, you should use the exact same URL. As a last resort, you can always rebuild the Docker with ffmpeg and disable GStreamer.

GeekAlexis on Jul 5, 2021

That error occasionally occurs with --gui option. It is a known bug from GTK. Running the docker with -e NO_AT_BRIDGE=1 should make the error go away.

GeekAlexis on Jul 6, 2021

@hoangminhtoan @raizazel Did you solve the issue?

@GeekAlexis Yes, I updated the code from your master branch. It works now! Thank you, the results were awesome!

hoangminhtoan on Nov 3, 2020