removeUser
Removes a user from video mixing during the CDN live streaming.
public int removeUser(int uid) {
    if (!transcodingUsers.containsKey(uid))
      return -Constants.ERR_INVALID_ARGUMENT;
    transcodingUsers.remove(uid);
    userCount = transcodingUsers.size();
    return Constants.ERR_OK;
  }
            
            
            
            
            
            
            
            Parameters
- uid
 - The ID of the user to be removed.
 
Returns
- 0: Success.
 - < 0: Failure.