Option max_downloads not working on embed yt-dlp

Checklist

• I’m reporting a bug unrelated to a specific site
• I’ve verified that I’m running yt-dlp version 2022.02.04. (update instructions)
• 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 issues including closed ones. DO NOT post duplicates
• I’ve read the guidelines for opening an issue

Description

When embeding yt-dlp in my program, I try to limit the number of downloads from a playlist by using the max_downloads option.

On a shell, the feature work pretty well but when I’m using it on my Python code, the playlist is fully downloaded instead of the X elements as expected.

See a reproducer:

from yt_dlp import YoutubeDL

def main():
    YTDL_FORMAT_OPTION: dict = {
        "format": "bestaudio/best",
        'max_downloads': 5,
        "compat_opts": "no-youtube-unavailable-videos",
        "verbose": True,
    }
    with YoutubeDL(params=YTDL_FORMAT_OPTION) as ytdl:
        info = ytdl.extract_info(url="https://www.youtube.com/playlist?list=PLF_ZnpSKNQQFTeHaQ1ZR5l5cx5nRiD80w", download=False, process=False)
        
    print(len(list(info["entries"])))  # 86
    

if __name__ == "__main__":
    main()

len should display 5 instead of 86. Also, I checked that the option exist and can be passed in the params dict and we’re supposed to can (see here: https://github.com/yt-dlp/yt-dlp/blob/master/yt_dlp/YoutubeDL.py#L3207)

Maybe i’m doing something wrong or idk

Verbose log

[debug] Encodings: locale cp1252, fs utf-8, out cp1252 (No ANSI), err cp1252 (No ANSI), pref cp1252
[debug] yt-dlp version 2022.02.04 [c1653e9ef]
[debug] Compatibility options: n, o, -, y, o, u, t, u, b, e, -, u, n, a, v, a, i, l, a, b, l, e, -, v, i, d, e, o, s
[debug] Python version 3.9.9 (CPython 64bit) - Windows-10-10.0.19044-SP0
[debug] exe versions: ffmpeg 4.4-essentials_build-www.gyan.dev (setts), ffprobe 4.4-essentials_build-www.gyan.dev
[debug] Optional libraries: Cryptodome, mutagen, sqlite, websockets
[debug] Proxy map: {}
[debug] [youtube:tab] Extracting URL: https://www.youtube.com/playlist?list=PLF_ZnpSKNQQFTeHaQ1ZR5l5cx5nRiD80w
[youtube:tab] PLF_ZnpSKNQQFTeHaQ1ZR5l5cx5nRiD80w: Downloading webpage
WARNING: [youtube:tab] YouTube said: INFO - 4 unavailable videos are hidden
[debug] [youtube:tab] Final URL: https://www.youtube.com/playlist?list=PLF_ZnpSKNQQFTeHaQ1ZR5l5cx5nRiD80w
WARNING: [youtube:tab] YouTube said: INFO - 4 unavailable videos are hidden

[Lesmiscore]

max_downloads is to limit number of downloads when you use download() function https://github.com/yt-dlp/yt-dlp/blob/03f830040ae92af369ee046b082b1683ddf1539f/yt_dlp/YoutubeDL.py#L3207-L3209

I see you want to limit number of items in playlists. To do this, either use 'playlistend': 5 (equivalent to --playlist-end 5) or 'playlist_items': '1-5' (--playlist-items 1-5)

P.S. You have to pass a list for compat_opts.

[Dysta]

Yes, it’s what I need, thank you very much!