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Error using YouTube address in detect.pyΒ #7241

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Description

@makino-hashimoto-books

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  • I have searched the YOLOv5 issues and found no similar bug report.

YOLOv5 Component

Detection

Bug

If source is set to YouTube address in detect.py, following error is shown.

Error message:
Traceback (most recent call last):
File "detect.py", line 252, in
main(opt)
File "detect.py", line 247, in main
run(**vars(opt))
File "/usr/local/lib/python3.7/dist-packages/torch/autograd/grad_mode.py", line 28, in decorate_context
return func(*args, **kwargs)
File "detect.py", line 100, in run
dataset = LoadStreams(source, img_size=imgsz, stride=stride, auto=pt)
File "/content/yolov5/utils/datasets.py", line 325, in init
assert cap.isOpened(), f'{st}Failed to open {s}'

Solve:
utils/dataset.py

if urlparse(s).hostname in ('youtube.com', 'youtu.be'): # if source is YouTube video
->
if urlparse(s).hostname in ('www.youtube.com', 'youtu.be'): # if source is YouTube video

Environment

  • google colab.

!python detect.py --weights yolov5s.pt --source https://www.youtube.com/watch?v=xxxxxxxx

No response

Additional

No response

Are you willing to submit a PR?

  • Yes I'd like to help by submitting a PR!

Activity

  1. github-actions commented on Apr 1, 2022

    @github-actions
    Contributor

    πŸ‘‹ Hello @makino-hashimoto-books, thank you for your interest in YOLOv5 πŸš€! Please visit our ⭐️ Tutorials to get started, where you can find quickstart guides for simple tasks like Custom Data Training all the way to advanced concepts like Hyperparameter Evolution.

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  2. glenn-jocher commented on Apr 1, 2022

    @glenn-jocher
    Member

    @makino-hashimoto-books YouTube inference works correctly for me in Google Colab.

    Screenshot 2022-04-01 at 21 27 23

    We've created a few short guidelines below to help users provide what we need in order to start investigating a possible problem.

    How to create a Minimal, Reproducible Example

    When asking a question, people will be better able to provide help if you provide code that they can easily understand and use to reproduce the problem. This is referred to by community members as creating a minimum reproducible example. Your code that reproduces the problem should be:

    • βœ… Minimal – Use as little code as possible to produce the problem
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    For Ultralytics to provide assistance your code should also be:

    • βœ… Current – Verify that your code is up-to-date with GitHub master, and if necessary git pull or git clone a new copy to ensure your problem has not already been solved in master.
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    If you believe your problem meets all the above criteria, please close this issue and raise a new one using the πŸ› Bug Report template with a minimum reproducible example to help us better understand and diagnose your problem.

    Thank you! πŸ˜ƒ

  3. glenn-jocher commented on Apr 1, 2022

    @glenn-jocher
    Member

    @makino-hashimoto-books nevermind, you are correct, there is an error with the URL you supplied. Your fix looks good. I will implement a PR.

  4. linked a pull request that will close this issueFix `www.youtube.com` hostname #7242on Apr 1, 2022
  5. makino-hashimoto-books commented on Apr 1, 2022

    @makino-hashimoto-books
    Author

    Thank you for solving method.

    In the previous version, "www.youtube.com" was permitted.
    Recently, the source file is changed, "www.youtube.com" is not permitted.

    Previous version,
    if 'youtube.com/' in s or 'youtu.be/' in s: # if source is YouTube video

    Latest version
    if urlparse(s).hostname in ('youtube.com', 'youtu.be'): # if source is YouTube video

  6. glenn-jocher commented on Apr 1, 2022

    @glenn-jocher
    Member

    @makino-hashimoto-books good news πŸ˜ƒ! Your original issue may now be fixed βœ… in PR #7242. This PR adds www.youtube.com to the valid hostname list alongside the existing youtube.com and youtu.be. This would allow you to pass youtube.com URLs with or without the www, but you always need the https://, i.e. https://www.youtube.com or https://youtube.com or https://youtu.be are all valid now :)

    To receive this update:

    • Git – git pull from within your yolov5/ directory or git clone https://github.com/ultralytics/yolov5 again
    • PyTorch Hub – Force-reload model = torch.hub.load('ultralytics/yolov5', 'yolov5s', force_reload=True)
    • Notebooks – View updated notebooks Open In Colab Open In Kaggle
    • Docker – sudo docker pull ultralytics/yolov5:latest to update your image Docker Pulls

    Thank you for spotting this issue and informing us of the problem. Please let us know if this update resolves the issue for you, and feel free to inform us of any other issues you discover or feature requests that come to mind. Happy trainings with YOLOv5 πŸš€!

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