static int
rtp_streaming_start (stream_t *stream)
{
streaming_ctrl_t *streaming_ctrl;
int fd;
if (!stream)
return -1;
streaming_ctrl = stream->streaming_ctrl;
fd = stream->fd;
if (fd < 0)
{
fd = udp_open_socket (streaming_ctrl->url);
if (fd < 0)
return -1;
stream->fd = fd;
}
streaming_ctrl->streaming_read = rtp_streaming_read;
streaming_ctrl->streaming_seek = nop_streaming_seek;
streaming_ctrl->prebuffer_size = 64 * 1024; /* 64 KBytes */
streaming_ctrl->buffering = 0;
streaming_ctrl->status = streaming_playing_e;
return 0;
}
/* make an UDP client connection to a host
Inputs:
<host> the host, host==NULL means broadcast
<port> the port #
Outputs:
<serv_addr> the info of the client
Return:
the socket
*/
int
udp_make_client(char *host, int port, struct sockaddr_in *serv_addr)
{
int fd;
unsigned int ip;
if (host)
ip = inet_addr(host);
else
ip = 0xFFFFFFFF; /* broadcast */
fd = udp_open_socket(ip, port, serv_addr);
if (fd > 0)
{
if (bind_interface(fd, 0, 0))
{
/* fail to bind local address for this client */
closesocket(fd);
fd = -1;
}
else
{
if (!host)
{
const int val = 1;
setsockopt(fd, SOL_SOCKET, SO_BROADCAST, (const char*) &val, sizeof(val));
}
dbgprintf ("connected to %s at port %hu", inet_ntoa (serv_addr->sin_addr), port);
}
}
return fd;
}
/* start an UDP server at a port
Inputs:
<iface> the binding address
<port> the port #
<serv_addr> the info of the server
Return:
the socket
*/
int
udp_startup_server(unsigned int iface, int port, struct sockaddr_in *serv_addr)
{
int fd;
fd = udp_open_socket(0, port, serv_addr);
if (fd > 0)
{
if (bind_interface(fd, iface, port))
{
/* fail to bind to local */
closesocket(fd);
fd = -1;
}
else
{
serv_addr->sin_addr.s_addr = iface? iface:lookup_localhost_ip(); /* host ip */
dbgprintf ("startup a UDP server at port %d fd %d",port,fd);
}
}
return fd;
}
