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gstreamer/subprojects/gst-plugins-base/gst-libs/gst/sdp/gstsdpmessage.h

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/* 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);
GST_SDP_API
GstSDPResult gst_sdp_message_new_from_text (const gchar *text, 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);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstSDPMessage, gst_sdp_message_free)
G_END_DECLS
#endif /* __GST_SDP_MESSAGE_H__ */
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