udp.c File Reference

Go to the source code of this file.

Classes
struct	UDPContext
Functions
static int	udp_set_multicast_ttl (int sockfd, int mcastTTL, struct sockaddr *addr)
static int	udp_join_multicast_group (int sockfd, struct sockaddr *addr)
static int	udp_leave_multicast_group (int sockfd, struct sockaddr *addr)
static struct addrinfo *	udp_ipv6_resolve_host (const char *hostname, int port, int type, int family, int flags)
static int	udp_set_url (struct sockaddr_storage *addr, const char *hostname, int port)
static int	udp_socket_create (UDPContext *s, struct sockaddr_storage *addr, int *addr_len)
static int	udp_port (struct sockaddr_storage *addr, int addr_len)
static int	udp_set_url (struct sockaddr_in *addr, const char *hostname, int port)
static int	udp_socket_create (UDPContext *s, struct sockaddr_in *addr, int *addr_len)
static int	udp_port (struct sockaddr_in *addr, int len)
int	udp_set_remote_url (URLContext *h, const char *uri)
	If no filename is given to av_open_input_file because you want to get the local port first, then you must call this function to set the remote server address.
int	udp_get_local_port (URLContext *h)
	Return the local port used by the UDP connexion.
int	udp_get_file_handle (URLContext *h)
	Return the udp file handle for select() usage to wait for several RTP streams at the same time.
static int	udp_open (URLContext *h, const char *uri, int flags)
static int	udp_read (URLContext *h, uint8_t *buf, int size)
static int	udp_write (URLContext *h, uint8_t *buf, int size)
static int	udp_close (URLContext *h)
Variables
URLProtocol	udp_protocol

---

Function Documentation

static int udp_set_multicast_ttl	(	int	sockfd,
		int	mcastTTL,
		struct sockaddr *	addr
	)			[static]

Definition at line 47 of file udp.c.

Referenced by udp_open().

static int udp_join_multicast_group	(	int	sockfd,
		struct sockaddr *	addr
	)			[static]

Definition at line 67 of file udp.c.

Referenced by udp_open().

static int udp_leave_multicast_group	(	int	sockfd,
		struct sockaddr *	addr
	)			[static]

Definition at line 95 of file udp.c.

Referenced by udp_close().

static struct addrinfo* udp_ipv6_resolve_host	(	const char *	hostname,
		int	port,
		int	type,
		int	family,
		int	flags
	)			[static, read]

Definition at line 124 of file udp.c.

Referenced by udp_set_url(), and udp_socket_create().

static int udp_set_url	(	struct sockaddr_storage *	addr,
		const char *	hostname,
		int	port
	)			[static]

Definition at line 148 of file udp.c.

Referenced by udp_set_remote_url().

static int udp_socket_create	(	UDPContext *	s,
		struct sockaddr_storage *	addr,
		int *	addr_len
	)			[static]

Definition at line 161 of file udp.c.

Referenced by udp_open().

static int udp_port	(	struct sockaddr_storage *	addr,
		int	addr_len
	)			[static]

Definition at line 196 of file udp.c.

static int udp_set_url	(	struct sockaddr_in *	addr,
		const char *	hostname,
		int	port
	)			[static]

Definition at line 211 of file udp.c.

static int udp_socket_create	(	UDPContext *	s,
		struct sockaddr_in *	addr,
		int *	addr_len
	)			[static]

Definition at line 222 of file udp.c.

static int udp_port	(	struct sockaddr_in *	addr,
		int	len
	)			[static]

Definition at line 238 of file udp.c.

int udp_set_remote_url	(	URLContext *	h,
		const char *	uri
	)

If no filename is given to av_open_input_file because you want to get the local port first, then you must call this function to set the remote server address.

url syntax: udp://host:port[?option=val...] option: 'multicast=1' : enable multicast 'ttl=n' : set the ttl value (for multicast only) 'localport=n' : set the local port 'pkt_size=n' : set max packet size 'reuse=1' : enable reusing the socket

Parameters:

	s1	media file context
	uri	of the remote server

Returns:

zero if no error.

Definition at line 261 of file udp.c.

Referenced by rtp_set_remote_url(), and udp_open().

int udp_get_local_port

(

URLContext *

h

)

Return the local port used by the UDP connexion.

Parameters:

s1

media file context

Returns:

the local port number

Definition at line 283 of file udp.c.

Referenced by rtp_get_local_port(), and rtp_open().

int udp_get_file_handle

(

URLContext *

h

)

Return the udp file handle for select() usage to wait for several RTP streams at the same time.

Parameters:

h

media file context

Definition at line 294 of file udp.c.

Referenced by rtp_open().

static int udp_open	(	URLContext *	h,
		const char *	uri,
		int	flags
	)			[static]

Definition at line 302 of file udp.c.

static int udp_read	(	URLContext *	h,
		uint8_t *	buf,
		int	size
	)			[static]

Definition at line 411 of file udp.c.

static int udp_write	(	URLContext *	h,
		uint8_t *	buf,
		int	size
	)			[static]

Definition at line 429 of file udp.c.

static int udp_close

(

URLContext *

h

)

[static]

Definition at line 449 of file udp.c.

---

Variable Documentation

URLProtocol udp_protocol

Initial value:

 {
    "udp",
    udp_open,
    udp_read,
    udp_write,
    NULL, 
    udp_close,
}

Definition at line 461 of file udp.c.