short_id: 281
entrance url: https://live.bilibili.com/281 https://live.bilibili.com/h5/281
GET https://api.live.bilibili.com/room/v1/Room/get_info?device=phone&platform=ios&scale=3&build=10000&room_id=281 or https://api.live.bilibili.com/room/v1/Room/room_init?id=281
-> live_status: 1 for streaming, 0 for stopped -> room_id: 49728
GET https://api.live.bilibili.com/room/v1/Danmu/getConf?room_id=49728&platform=h5
-> host_server broadcastlv.chat.bilibili.com
GET wss://broadcastlv.chat.bilibili.com/sub
GET https://api.live.bilibili.com/room/v1/Room/playUrl?cid=49728&qn=0&platform=web -> durl