Youtube Data API UnknowPart Error When Create Broadcasting

I’m trying to create Youtube live stream through my webpage via Youtube Data API. Whatever I tried, keep getting that error: { “error”: { “code”: 400, “message”:…

Determine if YouTube video is widescreen?

I would like to know with certainty if a YouTube video is widescreen or not using the v3 API. There are many old videos that have a 4:3 ratio, so I need to detect this. This was possible with API v2, …