streamlink: plugins.youtube Refer to #3724 "Unable to open URL: https://youtube.com/get_video_info" when using "--retry-streams"

Plugin Issue

• This is a plugin issue and I have read the contribution guidelines.
• I am using the latest development version from the master branch.

Description

Continuation of the issue of #3724 , problem sprung up again despite it being temporarily fixed for a few weeks.

Reproduction steps / Explicit stream URLs to test

Refer to #3724 Any URL for a YouTube livestream that has not gone live yet.

Log output

C:\>streamlink --loglevel debug
[cli][debug] OS:         Windows 10
[cli][debug] Python:     3.8.7
[cli][debug] Streamlink: 2.1.2+24.g5579278
[cli][debug] Requests(2.25.1), Socks(1.7.1), Websocket(1.0.1)
[cli][debug] Arguments:
[cli][debug]  --loglevel=debug
[cli][debug]  --rtmpdump=C:\Program Files (x86)\Streamlink\rtmpdump\rtmpdump.exe
[cli][debug]  --ffmpeg-ffmpeg=C:\Program Files (x86)\Streamlink\ffmpeg\ffmpeg.exe

Additional comments

Same errors as before

[cli][error] Unable to open URL: https://youtube.com/get_video_info (404 Client Error: Not Found for url: https://www.youtube.com/get_video_info?video_id=wQtZrQj8AHQ&html5=1&el=detailpage)
[cli][error] Unable to open URL: https://youtube.com/get_video_info (404 Client Error: Not Found for url: https://www.youtube.com/get_video_info?video_id=wQtZrQj8AHQ&html5=1&el=detailpage)
[cli][error] Unable to open URL: https://youtube.com/get_video_info (404 Client Error: Not Found for url: https://www.youtube.com/get_video_info?video_id=wQtZrQj8AHQ&html5=1&el=detailpage)

Edit: Note, this happens on upcoming streams that have not gone live yet, not streams that have already been archived or deleted.

For example, on the upcoming WWDC apple live stream that’s in 2 days in June 7 (https://www.youtube.com/watch?v=0TD96VTf0Xs) , I get the error, whether it be within 10 seconds of trying or 2+ minutes.

Please note this is something that I have been doing for months, with “–retry-streams” without problem until the first occurrence, which led to #3724 issue thread to be made and then a minor fix that worked for 2 weeks before the opening of this issue thread.

The command I am using for streamlink for streams to record is streamlink --retry-streams 2 -o <filename>.ts <youtube link> <quality> so for example with the Apple WWDC, it would be streamlink --retry-streams 2 -o test.ts https://www.youtube.com/watch?v=0TD96VTf0Xs best

What is supposed to happen is that after retrying x amount of times in y amount of seconds, it is supposed to just eventually start recording and outputting the file when the stream does become live when it checks via the --retry-streams and that should be all it should be doing.

But instead after a certain period it will give the errors and ignore recording even after a stream goes live until the command is interrupted and tried again.