ValueError: [CamGear:ERROR] :: Stream Mode is enabled but Input URL is invalid! [Bug]:

Question

ValueError: [CamGear:ERROR] :: Stream Mode is enabled but Input URL is invalid! [Bug]:

Closed this issue 2 years ago · 3 comments

Description

When I try to read YouTube video I am getting following errors even with valid YouTube video links.

Traceback (most recent call last):
  File "D:\github codes\deepds\test_file.py", line 25, in <module>
    stream = CamGear(
  File "D:\github codes\deepds\make_dataset\lib\site-packages\vidgear\gears\camgear.py", line 310, in __init__
    raise ValueError(
ValueError: [CamGear:ERROR] :: Stream Mode is enabled but Input URL is invalid!

My code looks like following

from vidgear.gears import CamGear
import cv2
stream = CamGear(
    source="https://www.youtube.com/watch?v=7lDpCPsLcQg",
    stream_mode=True,
    logging=True,
).start()

while True:
    frame = stream.read()
    if frame is None:
        break

    cv2.imshow("Output", frame)

    # check for 'q' key if pressed
    key = cv2.waitKey(1) & 0xFF
    if key == ord("q"):
        break

cv2.destroyAllWindows()
stream.stop()

I previously used this amazing library in my cli script to download frames from YouTube. This Code was working fine. Now its not working anymore. I am using this library in one of my open source projects but Invalid URL error is appearing every time I try with new URLS (although URLs are valid). I can not track the origin of this error.

Issue Checklist

I have searched open or closed issues for my problem and found nothing related or helpful.
I have read the Documentation and found nothing related to my problem.
I've read the Issue Guidelines and wholeheartedly agree.

Expected behaviour

The code should display the YouTube video captures using VidGear and display using OpenCV

Actual behaviour

The program thinks the URLs are invalid. Although I am providing valid URLs for displaying the YouTube videos. When the URL is valid so the code should display the frames but it is not executing as expected so I think this is an internal bug in CamGear.

Steps to reproduce

After installation of OpenCV and VidGear run following code

from vidgear.gears import CamGear
import cv2
stream = CamGear(
    source="https://www.youtube.com/watch?v=7lDpCPsLcQg",
    stream_mode=True,
    logging=True,
).start()

while True:
    frame = stream.read()
    if frame is None:
        break

    cv2.imshow("Output", frame)

    # check for 'q' key if pressed
    key = cv2.waitKey(1) & 0xFF
    if key == ord("q"):
        break

cv2.destroyAllWindows()
stream.stop()

Terminal log output

(make_dataset) PS D:\github codes\deepds> python .\test_file.py
08:02:22 ::    Helper     ::   INFO   :: Running VidGear Version: 0.3.0
08:02:22 ::    Helper     :: WARNING  :: GStreamer not found!
08:02:22 ::    Helper     ::  DEBUG   :: Selecting `best` resolution for streams.
08:02:22 ::    CamGear    ::   INFO   :: Verifying Streaming URL using yt-dlp backend. Please wait...
ERROR: [youtube] WX7bNiLofIA: Unable to extract uploader id; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
Traceback (most recent call last):
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\YoutubeDL.py", line 1502, in wrapper
    return func(self, *args, **kwargs)
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\YoutubeDL.py", line 1578, in __extract_info
    ie_result = ie.extract(url)
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\extractor\common.py", line 680, in extract
    ie_result = self._real_extract(url)
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\extractor\youtube.py", line 4049, in _real_extract
    'uploader_id': self._search_regex(r'/(?:channel|user)/([^/?&#]+)', owner_profile_url, 'uploader id') if owner_profile_url else None,
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\extractor\common.py", line 1228, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
yt_dlp.utils.RegexNotFoundError: [youtube] WX7bNiLofIA: Unable to extract uploader id; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\github codes\deepds\make_dataset\lib\site-packages\vidgear\gears\camgear.py", line 146, in __extract_meta
    extracted_data = ydl.extract_info(self.source_url, download=False)
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\YoutubeDL.py", line 1491, in extract_info
    return self.__extract_info(url, self.get_info_extractor(key), download, extra_info, process)
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\YoutubeDL.py", line 1520, in wrapper
    self.report_error(str(e), e.format_traceback())
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\YoutubeDL.py", line 1012, in report_error
    self.trouble(f'{self._format_err("ERROR:", self.Styles.ERROR)} {message}', *args, **kwargs)
  File "D:\github codes\deepds\make_dataset\lib\site-packages\yt_dlp\YoutubeDL.py", line 952, in trouble
    raise DownloadError(message, exc_info)
yt_dlp.utils.DownloadError: ERROR: [youtube] WX7bNiLofIA: Unable to extract uploader id; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\github codes\deepds\make_dataset\lib\site-packages\vidgear\gears\camgear.py", line 270, in __init__
    ytbackend = YT_backend(
  File "D:\github codes\deepds\make_dataset\lib\site-packages\vidgear\gears\camgear.py", line 108, in __init__
    self.meta_data = self.__extract_meta()
  File "D:\github codes\deepds\make_dataset\lib\site-packages\vidgear\gears\camgear.py", line 149, in __extract_meta
    raise RuntimeError(" [Backend] : " + str(e))
RuntimeError:  [Backend] : ERROR: [youtube] WX7bNiLofIA: Unable to extract uploader id; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\github codes\deepds\test_file.py", line 25, in <module>
    stream = CamGear(
  File "D:\github codes\deepds\make_dataset\lib\site-packages\vidgear\gears\camgear.py", line 310, in __init__
    raise ValueError(
ValueError: [CamGear:ERROR] :: Stream Mode is enabled but Input URL is invalid!



### Python Code(Optional)

```python
from vidgear.gears import CamGear
import cv2
stream = CamGear(
    source="https://www.youtube.com/watch?v=7lDpCPsLcQg",
    stream_mode=True,
    logging=True,
).start()

while True:
    frame = stream.read()
    if frame is None:
        break

    cv2.imshow("Output", frame)

    # check for 'q' key if pressed
    key = cv2.waitKey(1) & 0xFF
    if key == ord("q"):
        break

cv2.destroyAllWindows()
stream.stop()

VidGear Version

0.3.0

Python version

3.9.0

OpenCV version

4.7.0.68

Operating System version

Windows 11 Pro with OS Build 21996.1

Any other Relevant Information?

#133 suggests to use different backend but I think the issue is not with the backend as the error suggests that URL is invalid.

Answer 1 · 2023-04-02T03:14:30.000Z

Thanks for opening this issue, a maintainer will get back to you shortly!

In the meantime:

Read our Issue Guidelines, and update your issue accordingly. Please note that your issue will be fixed much faster if you spend about half an hour preparing it, including the exact reproduction steps and a demo.
Go comprehensively through our dedicated FAQ & Troubleshooting section.
For any quick questions and typos, please refrain from opening an issue, as you can reach us on Gitter community channel.

Answer 2 · 2023-04-02T08:54:25.000Z

@qaixerabbas this is a old bug yt-dlp/yt-dlp#6247 (comment) and already fixed. Kindly update your yt-dlp installation.

pip install -U yt-dlp

Answer 3 · 2023-04-02T09:57:41.000Z

@abhiTronix thanks for the comment. I was previously trying to upgrade but it was not working. I upgraded it yt-dlp installation and it works fine now. Thanks.