buffer_r：用于接收数据的缓冲区。BUFFER_SIZE：缓冲区长度。0(是个标志位)：指定调用方式。若无错误发生，recv()返回读入的字节数（也就是rc）。如果连接已中止，返回0。否则的话，返回SOCKET_ERROR错误，应用程序可通过WSAGetLastError()获取相应错误代码。
A method for modifying a buffer size at an apparatus, the method comprising receiving, at the apparatus, data representing a maximum lag value, M, for a video stream and increasing or decreasing the buffer size to provide a buffer time, S, less than or equal to the maximum lag value.收藏...