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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2017, Digium, Inc.
*
* Mark Michelson <mmichelson@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/* NOTE: It is unlikely that you need to include this file. You probably will only need
* this if you are an SDP translator, or if you are an inner part of the SDP API
*/
#ifndef _SDP_PRIV_H
#define _SDP_PRIV_H
#include "asterisk/vector.h"
/*!
* \brief Structure representing an SDP attribute
*/
struct ast_sdp_a_line {
/*! Attribute name */
char *name;
/*! Attribute value. For attributes that have no value, this will be an empty string */
char *value;
};
/*!
* \brief Structure representing an SDP connection
*/
struct ast_sdp_c_line {
/* IP family string (e.g. IP4 or IP6) */
char *family;
/* Connection address. Can be an IP address or FQDN */
char *addr;
};
/*!
* \brief A collection of SDP attributes
*/
AST_VECTOR(ast_sdp_a_line_vector, struct ast_sdp_a_line);
/*!
* \brief An SDP media stream
*
* This contains both the m line, as well as its
* constituent a lines.
*/
struct ast_sdp_m_line {
/*! Media type (e.g. "audio" or "video") */
char *type;
/*! Port number in m line */
uint16_t port;
/*! Number of ports specified in m line */
uint16_t port_count;
/*! RTP profile string (e.g. "RTP/AVP") */
char *profile;
/*! RTP payloads */
AST_VECTOR(, char *) payloads;
/*! Connection information for this media stream */
struct ast_sdp_c_line c_line;
/*! The attributes for this media stream */
struct ast_sdp_a_line_vector a_lines;
};
/*!
* \brief SDP time information
*/
struct ast_sdp_t_line {
/*! Session start time */
uint32_t start;
/*! Session end time */
uint32_t end;
};
/*!
* \brief An SDP
*/
struct ast_sdp {
/*! SDP Origin line */
struct {
/*! Origin user name */
char *user;
/*! Origin id */
uint32_t id;
/*! Origin version */
uint32_t version;
/*! Origin IP address family (e.g. "IP4" or "IP6") */
char *family;
/*! Origin address. Can be an IP address or FQDN */
char *addr;
} o_line;
/*! SDP Session name */
char *s_line;
/*! SDP top-level connection information */
struct ast_sdp_c_line c_line;
/*! SDP timing information */
struct ast_sdp_t_line t_line;
/*! SDP top-level attributes */
struct ast_sdp_a_line_vector a_lines;
/*! SDP media streams */
AST_VECTOR(, struct ast_sdp_m_line) m_lines;
};
/*!
* \brief Allocate a new SDP.
*
* \note This does not perform any initialization.
*
* \retval NULL FAIL
* \retval non-NULL New SDP
*/
struct ast_sdp *ast_sdp_alloc(void);
/*!
* \brief Free an SDP and all its constituent parts
*/
void ast_sdp_free(struct ast_sdp *dead);
#endif /* _SDP_PRIV_H */
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