Get total number of items in playlist

[Rudloff]

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Description of your issue, suggested solution and other information

I'm trying to paginate playlists.
But when using --dump-single-json --playlist-end 5 on a long playlist, I don't have a way to know from the JSON if there are more videos in the playlist.
It would be useful to get either:

• The total number of videos in the playlist.
• A boolean that indicates if there are videos coming next in the playlist.

[Tithen-Firion]

I doubt this will be added. You are generating unnecessary traffic by loading playlist URL each time you download 5 more videos.

Use --flat-playlist --dump-single-json, this way you load playlist URL only once and you can easily count all the videos.

[Rudloff]

Hum, you're right. I guess I can use --flat-playlist.
I thought it was gonna be slow for large playlists but turns out it's not.