Randomy slow download speeds even though my internet speed is 100Mbps

[Yilmaz4]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2021.06.06
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

[youtube] iKCMVRJGx38: Downloading webpage
[download] Destination: Coolio - Gangsta's Paradise [NFS Edit - JustResurrected Remake]-iKCMVRJGx38.m4a
[download]  10.3% of 3.86MiB at 70.67KiB/s ETA 00:50

Description

I'm making a program which downloads audios from specified video's link. I'm using Python and youtube-dl. Sometimes download completes instantly. But sometimes download speed stucks at 50KiB/s or 70KiB/s. My internet speed is 100Mbps so I don't think it's a problem with my internet speed. I also tried running the program on a server but again same result, it sometimes downloads at 50KiB/s but sometimes full speed.

When I'm watching from YouTube itself, I have no problems by the way. I can watch the video at 1080p smoothly. What should I do to prevent random slow download speeds? Any ideas?

I'm running latest version of youtube-dl and latest version of Python. Below code is the code I use to download videos:

import youtube_dl

ydl_opts = {
    'format': 'bestaudio/best',
    'postprocessors': [{
          'key': 'FFmpegExtractAudio',
          'preferredcodec': 'mp3',
          'preferredquality': '192',
    }],
}
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
    ydl.download(["https://www.youtube.com/watch?v=iKCMVRJGx38"])
    info_dict = ydl.extract_info("https://www.youtube.com/watch?v=iKCMVRJGx38", download=False)
    video_title = info_dict.get('title', None)

[nicolaasjan]

This is a known issue.
See e.g. #29326

TL;DR;
Use the yt-dlp fork and all should be well again (for now at least).

[Yilmaz4]

This is a known issue. See e.g. #29326

TL;DR; Use the yt-dlp fork and all should be well again (for now at least).

Thank you very much for your reply! I'll try to use. I hope its functions are as same as original youtube-dl.

Edit: I just uninstalled youtube-dl and installed that fork and it now works fine! Thanks again!

[nicolaasjan]

I hope its functions are as same as original youtube-dl.

Read the Readme. :)

A lot of basic functions are the same, but there are differences as well.