RTP protocol. More...

#include "libavutil/parseutils.h"
#include "libavutil/avstring.h"
#include "libavutil/opt.h"
#include "avformat.h"
#include "avio_internal.h"
#include "rtp.h"
#include "rtpproto.h"
#include "url.h"
#include <stdarg.h>
#include "internal.h"
#include "network.h"
#include "os_support.h"
#include <fcntl.h>

Data Structures
struct	RTPContext

Macros
#define	OFFSET(x) offsetof(RTPContext, x)

#define	D AV_OPT_FLAG_DECODING_PARAM

#define	E AV_OPT_FLAG_ENCODING_PARAM

Functions
int	ff_rtp_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. More...

static struct addrinfo *	rtp_resolve_host (const char *hostname, int port, int type, int family, int flags)

static int	compare_addr (const struct sockaddr_storage a, const struct sockaddr_storage b)

static int	get_port (const struct sockaddr_storage *ss)

static void	set_port (struct sockaddr_storage *ss, int port)

static int	rtp_check_source_lists (RTPContext s, struct sockaddr_storage source_addr_ptr)

static	av_printf_format (3, 4)
	add option to url of the form: "http://host:port/path?option1=val1&option2=val2... More...

static void	build_udp_url (RTPContext s, char buf, int buf_size, const char hostname, int port, int local_port, const char include_sources, const char *exclude_sources)

static void	rtp_parse_addr_list (URLContext h, char buf, struct sockaddr_storage **address_list_ptr, int address_list_size_ptr)

static int	rtp_open (URLContext h, const char uri, int flags)
	url syntax: rtp://host:port[?option=val...] option: 'ttl=n' : set the ttl value (for multicast only) 'rtcpport=n' : set the remote rtcp port to n 'localrtpport=n' : set the local rtp port to n 'localrtcpport=n' : set the local rtcp port to n 'pkt_size=n' : set max packet size 'connect=0/1' : do a connect() on the UDP socket 'sources=ip[,ip]' : list allowed source IP addresses 'block=ip[,ip]' : list disallowed source IP addresses 'write_to_source=0/1' : send packets to the source address of the latest received packet 'dscp=n' : set DSCP value to n (QoS) deprecated option: 'localport=n' : set the local port to n More...

static int	rtp_read (URLContext h, uint8_t buf, int size)

static int	rtp_write (URLContext h, const uint8_t buf, int size)

static int	rtp_close (URLContext *h)

int	ff_rtp_get_local_rtp_port (URLContext *h)
	Return the local rtp port used by the RTP connection. More...

int	ff_rtp_get_local_rtcp_port (URLContext *h)
	Return the local rtcp port used by the RTP connection. More...

static int	rtp_get_file_handle (URLContext *h)

static int	rtp_get_multi_file_handle (URLContext h, int handles, int numhandles)

Variables
static const AVOption	options []

static const AVClass	rtp_class

const URLProtocol	ff_rtp_protocol

Detailed Description

RTP protocol.

Definition in file rtpproto.c.

Macro Definition Documentation

#define OFFSET ( x ) offsetof(RTPContext, x)

Definition at line 63 of file rtpproto.c.

#define D AV_OPT_FLAG_DECODING_PARAM

Definition at line 64 of file rtpproto.c.

#define E AV_OPT_FLAG_ENCODING_PARAM

Definition at line 65 of file rtpproto.c.

Function Documentation

int ff_rtp_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.

Parameters

h	media file context
uri	of the remote server

Returns: zero if no error.

Definition at line 98 of file rtpproto.c.

static struct addrinfo* rtp_resolve_host	(	const char *	hostname,
		int	port,
		int	type,
		int	family,
		int	flags
	)

static

Definition at line 127 of file rtpproto.c.

Referenced by rtp_parse_addr_list().

static int compare_addr	(	const struct sockaddr_storage *	a,
		const struct sockaddr_storage *	b
	)

static

Definition at line 146 of file rtpproto.c.

Referenced by rtp_check_source_lists().

static int get_port ( const struct sockaddr_storage * ss )

static

Definition at line 166 of file rtpproto.c.

Referenced by rtp_write().

static void set_port	(	struct sockaddr_storage *	ss,
		int	port
	)

static

Definition at line 177 of file rtpproto.c.

Referenced by rtp_write().

static int rtp_check_source_lists	(	RTPContext *	s,
		struct sockaddr_storage *	source_addr_ptr
	)

static

Definition at line 187 of file rtpproto.c.

Referenced by rtp_read().

static av_printf_format	(	3	,
		4
	)

static

add option to url of the form: "http://host:port/path?option1=val1&option2=val2...

Definition at line 211 of file rtpproto.c.

static void build_udp_url	(	RTPContext *	s,
		char *	buf,
		int	buf_size,
		const char *	hostname,
		int	port,
		int	local_port,
		const char *	include_sources,
		const char *	exclude_sources
	)

static

Definition at line 226 of file rtpproto.c.

Referenced by rtp_open().

static void rtp_parse_addr_list	(	URLContext *	h,
		char *	buf,
		struct sockaddr_storage ***	address_list_ptr,
		int *	address_list_size_ptr
	)

static

Definition at line 253 of file rtpproto.c.

Referenced by rtp_open().

static int rtp_open	(	URLContext *	h,
		const char *	uri,
		int	flags
	)

static

url syntax: rtp://host:port[?option=val...] option: 'ttl=n' : set the ttl value (for multicast only) 'rtcpport=n' : set the remote rtcp port to n 'localrtpport=n' : set the local rtp port to n 'localrtcpport=n' : set the local rtcp port to n 'pkt_size=n' : set max packet size 'connect=0/1' : do a connect() on the UDP socket 'sources=ip[,ip]' : list allowed source IP addresses 'block=ip[,ip]' : list disallowed source IP addresses 'write_to_source=0/1' : send packets to the source address of the latest received packet 'dscp=n' : set DSCP value to n (QoS) deprecated option: 'localport=n' : set the local port to n

if rtcpport isn't set the rtcp port will be the rtp port + 1 if local rtp port isn't set any available port will be used for the local rtp and rtcp ports if the local rtcp port is not set it will be the local rtp port + 1

Definition at line 316 of file rtpproto.c.

static int rtp_read	(	URLContext *	h,
		uint8_t *	buf,
		int	size
	)

static

Definition at line 432 of file rtpproto.c.

static int rtp_write	(	URLContext *	h,
		const uint8_t *	buf,
		int	size
	)

static

Definition at line 474 of file rtpproto.c.

static int rtp_close ( URLContext * h )

static

Definition at line 550 of file rtpproto.c.

int ff_rtp_get_local_rtp_port ( URLContext * h )

Return the local rtp port used by the RTP connection.

Parameters

h	media file context

Returns: the local port number

Definition at line 573 of file rtpproto.c.

Referenced by rtsp_cmd_setup(), and rtsp_read_setup().

int ff_rtp_get_local_rtcp_port ( URLContext * h )

Return the local rtcp port used by the RTP connection.

Parameters

h	media file context

Returns: the local port number

Definition at line 585 of file rtpproto.c.

Referenced by rtsp_cmd_setup().

static int rtp_get_file_handle ( URLContext * h )

static

Definition at line 591 of file rtpproto.c.

static int rtp_get_multi_file_handle	(	URLContext *	h,
		int **	handles,
		int *	numhandles
	)

static

Definition at line 597 of file rtpproto.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "ttl",                "Time to live (in milliseconds, multicast only)",                   OFFSET(ttl),             AV_OPT_TYPE_INT,    { .i64 = -1 },    -1, INT_MAX, .flags = D|E },
    { "buffer_size",        "Send/Receive buffer size (in bytes)",                              OFFSET(buffer_size),     AV_OPT_TYPE_INT,    { .i64 = -1 },    -1, INT_MAX, .flags = D|E },
    { "rtcp_port",          "Custom rtcp port",                                                 OFFSET(rtcp_port),       AV_OPT_TYPE_INT,    { .i64 = -1 },    -1, INT_MAX, .flags = D|E },
    { "local_rtpport",      "Local rtp port",                                                   OFFSET(local_rtpport),   AV_OPT_TYPE_INT,    { .i64 = -1 },    -1, INT_MAX, .flags = D|E },
    { "local_rtcpport",     "Local rtcp port",                                                  OFFSET(local_rtcpport),  AV_OPT_TYPE_INT,    { .i64 = -1 },    -1, INT_MAX, .flags = D|E },
    { "connect",            "Connect socket",                                                   OFFSET(connect),         AV_OPT_TYPE_BOOL,   { .i64 =  0 },     0, 1,       .flags = D|E },
    { "write_to_source",    "Send packets to the source address of the latest received packet", OFFSET(write_to_source), AV_OPT_TYPE_BOOL,   { .i64 =  0 },     0, 1,       .flags = D|E },
    { "pkt_size",           "Maximum packet size",                                              OFFSET(pkt_size),        AV_OPT_TYPE_INT,    { .i64 = -1 },    -1, INT_MAX, .flags = D|E },
    { "dscp",               "DSCP class",                                                       OFFSET(dscp),            AV_OPT_TYPE_INT,    { .i64 = -1 },    -1, INT_MAX, .flags = D|E },
    { "sources",            "Source list",                                                      OFFSET(sources),         AV_OPT_TYPE_STRING, { .str = NULL },               .flags = D|E },
    { "block",              "Block list",                                                       OFFSET(block),           AV_OPT_TYPE_STRING, { .str = NULL },               .flags = D|E },
    { NULL }
}

Definition at line 66 of file rtpproto.c.

const AVClass rtp_class

static

Initial value:

= {
    .class_name = "rtp",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 81 of file rtpproto.c.

const URLProtocol ff_rtp_protocol

Initial value:

= {
    .name                      = "rtp",
    .url_open                  = rtp_open,
    .url_read                  = rtp_read,
    .url_write                 = rtp_write,
    .url_close                 = rtp_close,
    .url_get_file_handle       = rtp_get_file_handle,
    .url_get_multi_file_handle = rtp_get_multi_file_handle,
    .priv_data_size            = sizeof(RTPContext),
    .flags                     = URL_PROTOCOL_FLAG_NETWORK,
    .priv_data_class           = &rtp_class,
}

Definition at line 610 of file rtpproto.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation