download rate rapidly drops after few seconds

[ghost]

Hi,

I was runnning mpsyt for a while now and everything worked smoothly. A while ago I noticed massive download rate drops (10 Mbits to a few Kbits after one or two seconds downloading). First I thought it may be a bug that will be fixed soon but it seems that it isn't.

mpsyt version      : 0.2.8
pafy version       : 0.5.4 (youtube-dl backend)
youtube-dl version : 2018.07.10
Python version     : 3.6.6 (default, Jun 27 2018, 13:11:40) 
[GCC 8.1.1 20180531]
Platform           : Linux-4.17.5-1-ARCH-x86_64-with-arch

Thanks in advance!

[ritiek]

This is a problem with YouTube itself (see ytdl-org/youtube-dl#15271 and mps-youtube/pafy#199).

This was fixed in pafy recently. Maybe we should just use it download videos in mps-youtube as well.

[ghost]

Nevermind then; I should train my search-skills.

[ritiek]

Nope, your issue is a valid one. This still hasn't been fixed for mps-youtube. Let's keep this open.

[ghost]

Python 3.6.6 (default, Jun 27 2018, 13:11:40) 
[GCC 8.1.1 20180531] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pafy
>>> video = pafy.new("https://www.youtube.com/watch?v=w6P0DKlr_D4")
>>> audio = video.getbestaudio()
>>> audio.download()
^CTraceback (most recent call last):Rate: [ 189 KB/s].  ETA: [388 secs]  

I'm a little bit off today, sorry.

[ritiek]

Actually, that fix hasn't been released on PyPi yet. That code should download at full speed installing pafy directly from GitHub.

pip install -U git+https://github.com/mps-youtube/pafy.git

[nemanjan00]

I am still having the same problem, after installing pafy from git...

[ghost]

use the code I've posted above, this should work. it isn't fixed for mpsyt yet.

[ritiek]

At the moment, you can use youtube-dl as an external downloader to avoid download speed throttling:

set download_command youtube-dl %i -x -o %F

EDIT: The above command will only download audio streams. You should rather use this command so that it works for everything:

set download_command youtube-dl --http-chunk-size 10485760 %u -o %F

For the curious one - this chunk size 10485760 comes directly from youtube-dl source.