gstreamer/gst-libs/gst/sdp/gstsdpmessage.h
Tim-Philipp Müller 12be5a1ab2 sdp: GST_EXPORT -> GST_SDP_API
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
2018-03-13 12:16:42 +00:00

761 lines
26 KiB
C

/* GStreamer
* Copyright (C) <2005,2006> Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __GST_SDP_MESSAGE_H__
#define __GST_SDP_MESSAGE_H__
#include "gstmikey.h"
#include <glib.h>
#include <gst/gst.h>
#include <gst/sdp/sdp.h>
G_BEGIN_DECLS
/**
* GstSDPOrigin:
* @username: the user's login on the originating host, or it is "-"
* if the originating host does not support the concept of user ids.
* @sess_id: is a numeric string such that the tuple of @username, @sess_id,
* @nettype, @addrtype and @addr form a globally unique identifier for the
* session.
* @sess_version: a version number for this announcement
* @nettype: the type of network. "IN" is defined to have the meaning
* "Internet".
* @addrtype: the type of @addr.
* @addr: the globally unique address of the machine from which the session was
* created.
*
* The contents of the SDP "o=" field which gives the originator of the session
* (their username and the address of the user's host) plus a session id and
* session version number.
*/
typedef struct {
gchar *username;
gchar *sess_id;
gchar *sess_version;
gchar *nettype;
gchar *addrtype;
gchar *addr;
} GstSDPOrigin;
/**
* GstSDPConnection:
* @nettype: the type of network. "IN" is defined to have the meaning
* "Internet".
* @addrtype: the type of @address.
* @address: the address
* @ttl: the time to live of the address
* @addr_number: the number of layers
*
* The contents of the SDP "c=" field which contains connection data.
*/
typedef struct {
gchar *nettype;
gchar *addrtype;
gchar *address;
guint ttl;
guint addr_number;
} GstSDPConnection;
GST_SDP_API
GstSDPResult gst_sdp_connection_set (GstSDPConnection *conn,
const gchar *nettype,
const gchar *addrtype,
const gchar *address,
guint ttl, guint addr_number);
GST_SDP_API
GstSDPResult gst_sdp_connection_clear (GstSDPConnection *conn);
/**
* GST_SDP_BWTYPE_CT:
*
* The Conference Total bandwidth modifier.
*/
#define GST_SDP_BWTYPE_CT "CT"
/**
* GST_SDP_BWTYPE_AS:
*
* The Application-Specific Maximum bandwidth modifier.
*/
#define GST_SDP_BWTYPE_AS "AS"
/**
* GST_SDP_BWTYPE_EXT_PREFIX:
*
* The extension prefix bandwidth modifier.
*/
#define GST_SDP_BWTYPE_EXT_PREFIX "X-"
/**
* GST_SDP_BWTYPE_RS:
*
* RTCP bandwidth allocated to active data senders (RFC 3556).
*/
#define GST_SDP_BWTYPE_RS "RS"
/**
* GST_SDP_BWTYPE_RR:
*
* RTCP bandwidth allocated to data receivers (RFC 3556).
*/
#define GST_SDP_BWTYPE_RR "RR"
/**
* GST_SDP_BWTYPE_TIAS:
*
* Transport Independent Application Specific Maximum bandwidth (RFC 3890).
*/
#define GST_SDP_BWTYPE_TIAS "TIAS"
/**
* GstSDPBandwidth:
* @bwtype: the bandwidth modifier type
* @bandwidth: the bandwidth in kilobits per second
*
* The contents of the SDP "b=" field which specifies the proposed bandwidth to
* be used by the session or media.
*/
typedef struct {
gchar *bwtype;
guint bandwidth;
} GstSDPBandwidth;
GST_SDP_API
GstSDPResult gst_sdp_bandwidth_set (GstSDPBandwidth *bw, const gchar *bwtype,
guint bandwidth);
GST_SDP_API
GstSDPResult gst_sdp_bandwidth_clear (GstSDPBandwidth *bw);
/**
* GstSDPTime:
* @start: start time for the conference. The value is the decimal
* representation of Network Time Protocol (NTP) time values in seconds
* @stop: stop time for the conference. The value is the decimal
* representation of Network Time Protocol (NTP) time values in seconds
* @repeat: repeat times for a session
*
* The contents of the SDP "t=" field which specify the start and stop times for
* a conference session.
*/
typedef struct {
gchar *start;
gchar *stop;
GArray *repeat;
} GstSDPTime;
GST_SDP_API
GstSDPResult gst_sdp_time_set (GstSDPTime *t, const gchar *start,
const gchar *stop, const gchar **repeat);
GST_SDP_API
GstSDPResult gst_sdp_time_clear (GstSDPTime *t);
/**
* GstSDPZone:
* @time: the NTP time that a time zone adjustment happens
* @typed_time: the offset from the time when the session was first scheduled
*
* The contents of the SDP "z=" field which allows the sender to
* specify a list of time zone adjustments and offsets from the base
* time.
*/
typedef struct {
gchar *time;
gchar *typed_time;
} GstSDPZone;
GST_SDP_API
GstSDPResult gst_sdp_zone_set (GstSDPZone *zone, const gchar *adj_time,
const gchar *typed_time);
GST_SDP_API
GstSDPResult gst_sdp_zone_clear (GstSDPZone *zone);
/**
* GstSDPKey:
* @type: the encryption type
* @data: the encryption data
*
* The contents of the SDP "k=" field which is used to convey encryption
* keys.
*/
typedef struct {
gchar *type;
gchar *data;
} GstSDPKey;
/**
* GstSDPAttribute:
* @key: the attribute key
* @value: the attribute value or NULL when it was a property attribute
*
* The contents of the SDP "a=" field which contains a key/value pair.
*/
typedef struct {
gchar *key;
gchar *value;
} GstSDPAttribute;
GST_SDP_API
GstSDPResult gst_sdp_attribute_set (GstSDPAttribute *attr, const gchar *key,
const gchar *value);
GST_SDP_API
GstSDPResult gst_sdp_attribute_clear (GstSDPAttribute *attr);
/**
* GstSDPMedia:
* @media: the media type
* @port: the transport port to which the media stream will be sent
* @num_ports: the number of ports or -1 if only one port was specified
* @proto: the transport protocol
* @fmts: an array of #gchar formats
* @information: the media title
* @connections: array of #GstSDPConnection with media connection information
* @bandwidths: array of #GstSDPBandwidth with media bandwidth information
* @key: the encryption key
* @attributes: array of #GstSDPAttribute with the additional media attributes
*
* The contents of the SDP "m=" field with all related fields.
*/
typedef struct {
gchar *media;
guint port;
guint num_ports;
gchar *proto;
GArray *fmts;
gchar *information;
GArray *connections;
GArray *bandwidths;
GstSDPKey key;
GArray *attributes;
} GstSDPMedia;
/**
* GstSDPMessage:
* @version: the protocol version
* @origin: owner/creator and session identifier
* @session_name: session name
* @information: session information
* @uri: URI of description
* @emails: array of #gchar with email addresses
* @phones: array of #gchar with phone numbers
* @connection: connection information for the session
* @bandwidths: array of #GstSDPBandwidth with bandwidth information
* @times: array of #GstSDPTime with time descriptions
* @zones: array of #GstSDPZone with time zone adjustments
* @key: encryption key
* @attributes: array of #GstSDPAttribute with session attributes
* @medias: array of #GstSDPMedia with media descriptions
*
* The contents of the SDP message.
*/
typedef struct {
gchar *version;
GstSDPOrigin origin;
gchar *session_name;
gchar *information;
gchar *uri;
GArray *emails;
GArray *phones;
GstSDPConnection connection;
GArray *bandwidths;
GArray *times;
GArray *zones;
GstSDPKey key;
GArray *attributes;
GArray *medias;
} GstSDPMessage;
GST_SDP_API
GType gst_sdp_message_get_type (void);
#define GST_TYPE_SDP_MESSAGE (gst_sdp_message_get_type())
#define GST_SDP_MESSAGE_CAST(object) ((GstSDPMessage *)(object))
#define GST_SDP_MESSAGE(object) (GST_SDP_MESSAGE_CAST(object))
/* Session descriptions */
GST_SDP_API
GstSDPResult gst_sdp_message_new (GstSDPMessage **msg);
GST_SDP_API
GstSDPResult gst_sdp_message_init (GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_uninit (GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_free (GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_copy (const GstSDPMessage *msg, GstSDPMessage **copy);
GST_SDP_API
GstSDPResult gst_sdp_message_parse_buffer (const guint8 *data, guint size, GstSDPMessage *msg);
GST_SDP_API
gchar* gst_sdp_message_as_text (const GstSDPMessage *msg);
/* convert from/to uri */
GST_SDP_API
GstSDPResult gst_sdp_message_parse_uri (const gchar *uri, GstSDPMessage *msg);
GST_SDP_API
gchar* gst_sdp_message_as_uri (const gchar *scheme, const GstSDPMessage *msg);
/* utils */
GST_SDP_API
gboolean gst_sdp_address_is_multicast (const gchar *nettype, const gchar *addrtype,
const gchar *addr);
/* v=.. */
GST_SDP_API
const gchar* gst_sdp_message_get_version (const GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_set_version (GstSDPMessage *msg, const gchar *version);
/* o=<username> <sess-id> <sess-version> <nettype> <addrtype> <unicast-address> */
GST_SDP_API
const GstSDPOrigin* gst_sdp_message_get_origin (const GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_set_origin (GstSDPMessage *msg, const gchar *username,
const gchar *sess_id, const gchar *sess_version,
const gchar *nettype, const gchar *addrtype,
const gchar *addr);
/* s=<session name> */
GST_SDP_API
const gchar* gst_sdp_message_get_session_name (const GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_set_session_name (GstSDPMessage *msg, const gchar *session_name);
/* i=<session description> */
GST_SDP_API
const gchar* gst_sdp_message_get_information (const GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_set_information (GstSDPMessage *msg, const gchar *information);
/* u=<uri> */
GST_SDP_API
const gchar* gst_sdp_message_get_uri (const GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_set_uri (GstSDPMessage *msg, const gchar *uri);
/* e=<email-address> */
GST_SDP_API
guint gst_sdp_message_emails_len (const GstSDPMessage *msg);
GST_SDP_API
const gchar* gst_sdp_message_get_email (const GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_insert_email (GstSDPMessage *msg, gint idx,
const gchar *email);
GST_SDP_API
GstSDPResult gst_sdp_message_replace_email (GstSDPMessage *msg, guint idx,
const gchar *email);
GST_SDP_API
GstSDPResult gst_sdp_message_remove_email (GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_add_email (GstSDPMessage *msg, const gchar *email);
/* p=<phone-number> */
GST_SDP_API
guint gst_sdp_message_phones_len (const GstSDPMessage *msg);
GST_SDP_API
const gchar* gst_sdp_message_get_phone (const GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_insert_phone (GstSDPMessage *msg, gint idx,
const gchar *phone);
GST_SDP_API
GstSDPResult gst_sdp_message_replace_phone (GstSDPMessage *msg, guint idx,
const gchar *phone);
GST_SDP_API
GstSDPResult gst_sdp_message_remove_phone (GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_add_phone (GstSDPMessage *msg, const gchar *phone);
/* c=<nettype> <addrtype> <connection-address>[/<ttl>][/<number of addresses>] */
GST_SDP_API
const GstSDPConnection* gst_sdp_message_get_connection (const GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_set_connection (GstSDPMessage *msg, const gchar *nettype,
const gchar *addrtype, const gchar *address,
guint ttl, guint addr_number);
/* b=<bwtype>:<bandwidth> */
GST_SDP_API
guint gst_sdp_message_bandwidths_len (const GstSDPMessage *msg);
GST_SDP_API
const GstSDPBandwidth* gst_sdp_message_get_bandwidth (const GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_insert_bandwidth (GstSDPMessage * msg, gint idx,
GstSDPBandwidth * bw);
GST_SDP_API
GstSDPResult gst_sdp_message_replace_bandwidth (GstSDPMessage * msg, guint idx,
GstSDPBandwidth * bw);
GST_SDP_API
GstSDPResult gst_sdp_message_remove_bandwidth (GstSDPMessage * msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_add_bandwidth (GstSDPMessage *msg, const gchar *bwtype,
guint bandwidth);
/* t=<start-time> <stop-time> and
* r=<repeat interval> <active duration> <offsets from start-time> */
GST_SDP_API
guint gst_sdp_message_times_len (const GstSDPMessage *msg);
GST_SDP_API
const GstSDPTime* gst_sdp_message_get_time (const GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_insert_time (GstSDPMessage *msg, gint idx,
GstSDPTime *t);
GST_SDP_API
GstSDPResult gst_sdp_message_replace_time (GstSDPMessage *msg, guint idx,
GstSDPTime *t);
GST_SDP_API
GstSDPResult gst_sdp_message_remove_time (GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_add_time (GstSDPMessage *msg, const gchar *start,
const gchar *stop, const gchar **repeat);
/* z=<adjustment time> <offset> <adjustment time> <offset> .... */
GST_SDP_API
guint gst_sdp_message_zones_len (const GstSDPMessage *msg);
GST_SDP_API
const GstSDPZone* gst_sdp_message_get_zone (const GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_insert_zone (GstSDPMessage *msg, gint idx,
GstSDPZone *zone);
GST_SDP_API
GstSDPResult gst_sdp_message_replace_zone (GstSDPMessage *msg, guint idx,
GstSDPZone *zone);
GST_SDP_API
GstSDPResult gst_sdp_message_remove_zone (GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_add_zone (GstSDPMessage *msg, const gchar *adj_time,
const gchar *typed_time);
/* k=<method>[:<encryption key>] */
GST_SDP_API
const GstSDPKey* gst_sdp_message_get_key (const GstSDPMessage *msg);
GST_SDP_API
GstSDPResult gst_sdp_message_set_key (GstSDPMessage *msg, const gchar *type,
const gchar *data);
/* a=... */
GST_SDP_API
guint gst_sdp_message_attributes_len (const GstSDPMessage *msg);
GST_SDP_API
const GstSDPAttribute* gst_sdp_message_get_attribute (const GstSDPMessage *msg, guint idx);
GST_SDP_API
const gchar* gst_sdp_message_get_attribute_val (const GstSDPMessage *msg,
const gchar *key);
GST_SDP_API
const gchar* gst_sdp_message_get_attribute_val_n (const GstSDPMessage *msg,
const gchar *key, guint nth);
GST_SDP_API
GstSDPResult gst_sdp_message_insert_attribute (GstSDPMessage *msg, gint idx,
GstSDPAttribute *attr);
GST_SDP_API
GstSDPResult gst_sdp_message_replace_attribute (GstSDPMessage *msg, guint idx,
GstSDPAttribute *attr);
GST_SDP_API
GstSDPResult gst_sdp_message_remove_attribute (GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_add_attribute (GstSDPMessage *msg, const gchar *key,
const gchar *value);
/* m=.. sections */
GST_SDP_API
guint gst_sdp_message_medias_len (const GstSDPMessage *msg);
GST_SDP_API
const GstSDPMedia* gst_sdp_message_get_media (const GstSDPMessage *msg, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_message_add_media (GstSDPMessage *msg, GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_message_dump (const GstSDPMessage *msg);
/* Media descriptions */
GST_SDP_API
GstSDPResult gst_sdp_media_new (GstSDPMedia **media);
GST_SDP_API
GstSDPResult gst_sdp_media_init (GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_uninit (GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_free (GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_copy (const GstSDPMedia *media, GstSDPMedia **copy);
GST_SDP_API
gchar* gst_sdp_media_as_text (const GstSDPMedia *media);
/* m=<media> <port>/<number of ports> <proto> <fmt> ... */
GST_SDP_API
const gchar* gst_sdp_media_get_media (const GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_set_media (GstSDPMedia *media, const gchar *med);
GST_SDP_API
guint gst_sdp_media_get_port (const GstSDPMedia *media);
GST_SDP_API
guint gst_sdp_media_get_num_ports (const GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_set_port_info (GstSDPMedia *media, guint port,
guint num_ports);
GST_SDP_API
const gchar* gst_sdp_media_get_proto (const GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_set_proto (GstSDPMedia *media, const gchar *proto);
GST_SDP_API
guint gst_sdp_media_formats_len (const GstSDPMedia *media);
GST_SDP_API
const gchar* gst_sdp_media_get_format (const GstSDPMedia *media, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_media_insert_format (GstSDPMedia *media, gint idx,
const gchar *format);
GST_SDP_API
GstSDPResult gst_sdp_media_replace_format (GstSDPMedia *media, guint idx,
const gchar *format);
GST_SDP_API
GstSDPResult gst_sdp_media_remove_format (GstSDPMedia *media, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_media_add_format (GstSDPMedia *media, const gchar *format);
/* i=<session description> */
GST_SDP_API
const gchar* gst_sdp_media_get_information (const GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_set_information (GstSDPMedia *media, const gchar *information);
/* c=<nettype> <addrtype> <connection-address>[/<ttl>][/<number of addresses>] */
GST_SDP_API
guint gst_sdp_media_connections_len (const GstSDPMedia *media);
GST_SDP_API
const GstSDPConnection* gst_sdp_media_get_connection (const GstSDPMedia *media, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_media_insert_connection (GstSDPMedia *media, gint idx,
GstSDPConnection *conn);
GST_SDP_API
GstSDPResult gst_sdp_media_replace_connection (GstSDPMedia *media, guint idx,
GstSDPConnection *conn);
GST_SDP_API
GstSDPResult gst_sdp_media_remove_connection (GstSDPMedia *media, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_media_add_connection (GstSDPMedia *media,
const gchar *nettype,
const gchar *addrtype,
const gchar *address,
guint ttl, guint addr_number);
/* b=<bwtype>:<bandwidth> */
GST_SDP_API
guint gst_sdp_media_bandwidths_len (const GstSDPMedia *media);
GST_SDP_API
const GstSDPBandwidth* gst_sdp_media_get_bandwidth (const GstSDPMedia *media, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_media_insert_bandwidth (GstSDPMedia *media, gint idx,
GstSDPBandwidth *bw);
GST_SDP_API
GstSDPResult gst_sdp_media_replace_bandwidth (GstSDPMedia *media, guint idx,
GstSDPBandwidth *bw);
GST_SDP_API
GstSDPResult gst_sdp_media_remove_bandwidth (GstSDPMedia *media, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_media_add_bandwidth (GstSDPMedia *media, const gchar *bwtype,
guint bandwidth);
/* k=<method>:<encryption key> */
GST_SDP_API
const GstSDPKey* gst_sdp_media_get_key (const GstSDPMedia *media);
GST_SDP_API
GstSDPResult gst_sdp_media_set_key (GstSDPMedia *media, const gchar *type,
const gchar *data);
/* a=... */
GST_SDP_API
guint gst_sdp_media_attributes_len (const GstSDPMedia *media);
GST_SDP_API
const GstSDPAttribute * gst_sdp_media_get_attribute (const GstSDPMedia *media, guint idx);
GST_SDP_API
const gchar* gst_sdp_media_get_attribute_val (const GstSDPMedia *media, const gchar *key);
GST_SDP_API
const gchar* gst_sdp_media_get_attribute_val_n (const GstSDPMedia *media, const gchar *key,
guint nth);
GST_SDP_API
GstSDPResult gst_sdp_media_insert_attribute (GstSDPMedia *media, gint idx,
GstSDPAttribute *attr);
GST_SDP_API
GstSDPResult gst_sdp_media_replace_attribute (GstSDPMedia *media, guint idx,
GstSDPAttribute *attr);
GST_SDP_API
GstSDPResult gst_sdp_media_remove_attribute (GstSDPMedia *media, guint idx);
GST_SDP_API
GstSDPResult gst_sdp_media_add_attribute (GstSDPMedia *media, const gchar *key,
const gchar *value);
GST_SDP_API
GstCaps* gst_sdp_media_get_caps_from_media (const GstSDPMedia *media, gint pt);
GST_SDP_API
GstSDPResult gst_sdp_media_set_media_from_caps (const GstCaps* caps, GstSDPMedia *media);
GST_SDP_API
gchar * gst_sdp_make_keymgmt (const gchar *uri, const gchar *base64);
GST_SDP_API
GstSDPResult gst_sdp_message_parse_keymgmt (const GstSDPMessage *msg, GstMIKEYMessage **mikey);
GST_SDP_API
GstSDPResult gst_sdp_media_parse_keymgmt (const GstSDPMedia *media, GstMIKEYMessage **mikey);
GST_SDP_API
GstSDPResult gst_sdp_message_attributes_to_caps (const GstSDPMessage *msg, GstCaps *caps);
GST_SDP_API
GstSDPResult gst_sdp_media_attributes_to_caps (const GstSDPMedia *media, GstCaps *caps);
#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstSDPMessage, gst_sdp_message_free)
#endif
G_END_DECLS
#endif /* __GST_SDP_MESSAGE_H__ */