subscribeRemoteSubStreamVideo method
订阅或取消订阅别人的辅流视频
uid
userID
subscribe
是否订阅
Implementation
Future<int> subscribeRemoteSubStreamVideo(int uid, bool subscribe) async {
IntValue reply = await _api
.subscribeRemoteSubStreamVideo(SubscribeRemoteSubStreamVideoRequest()
..uid = uid
..subscribe = subscribe);
return reply.value ?? -1;
}