ITEM_COUNT_UNKNOWN is returned when the JSON array which contains usally the number of videos is less than 3 items. Also apply the same type of optimizations done in other PlaylistExtractors in YoutubePlaylistExtractor.
ITEM_COUNT_UNKNOWN is returned when the JSON array which contains usally the number of videos is less than 3 items. Also apply the same type of optimizations done in other PlaylistExtractors in YoutubePlaylistExtractor.