Is there any documentation about the http://www.youtube.com/get_video_info?video_id=XXX ?
Since a week or so it seems I do not get correct information anymore. I am using the url_encoded_fmt_stream_map property in the response stream to get the url for the video link of the mp4 type of my video. But this property is now returning an empty value.
Has something been changed in the get_video_info functionality ?
get_video_info endpoint is not, and has never been, a supported public API.
If you'd like to play back YouTube content, you need to use one of the official YouTube Players: