Populate fields for match-filter and in the json output

[maaaaz]

DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

• I understand that I will be blocked if I intentionally remove or skip any mandatory* field

Checklist

• I'm requesting a site-specific feature
• I've verified that I have updated yt-dlp to nightly or master (update instructions)
• I've checked that all provided URLs are playable in a browser with the same IP and same login details
• I've searched known issues and the bugtracker for similar issues including closed ones. DO NOT post duplicates
• I've read the guidelines for opening an issue
• I've read about sharing account credentials and I'm willing to share it if required

Region

No response

Example URLs

https://www.youtube.com/playlist?list=PLWHarrLXQlqmsKldQC9j9XIMpArq6-0iP

Provide a description that is worded well enough to be understood

cf. #9614 (comment)

Provide verbose output that clearly demonstrates the problem

• Run your yt-dlp command with -vU flag added (yt-dlp -vU <your command line>)
• If using API, add 'verbose': True to YoutubeDL params instead
• Copy the WHOLE output (starting with [debug] Command-line config) and insert it below

Complete Verbose Output

cf. https://github.com/yt-dlp/yt-dlp/issues/9614#issuecomment-2086354473

[bashonly]

which fields? can you make this request more specific please? And I'm guessing you mean with --flat-playlist?

[maaaaz]

You can see this comment #9614 (comment) that fields in each entry of playlist are not populated.

For public and private videos, fields of each video entry are "null", which makes "match-filter" unusable:

$ yt-dlp "https://www.youtube.com/playlist?list=PLWHarrLXQlqmsKldQC9j9XIMpArq6-0iP" --ignore-errors --flat-playlist --dump-single-json > twiesel_playlist.json

$ cat twiesel_playlist.json | jq
...
{
"_type": "url",
"ie_key": "Youtube",
"id": "drmZZ9D_W28",
"url": "https://www.youtube.com/watch?v=drmZZ9D_W28",
"title": "[Private video]",
"description": null,
"duration": null,
"channel_id": null,
"channel": null,
"channel_url": null,
"uploader": null,
"uploader_id": null,
"uploader_url": null,
...

[pukkandan]

They want availability as I understand

[maaaaz]

Yes, it would be a good start, in order to be able to remove private videos from download.