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/* $Id$ */
/*
* Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PJMEDIA_SESSION_H__
#define __PJMEDIA_SESSION_H__
/**
* @file session.h
* @brief Media Session.
*/
#include <pj/types.h>
#include <pjmedia/mediamgr.h>
#include <pjmedia/stream.h>
#include <pjmedia/sdp.h>
PJ_BEGIN_DECL
/**
* @defgroup PJMED_SES Media session
* @ingroup PJMEDIA
* @{
*/
/** Opaque declaration of media session. */
typedef struct pj_media_session_t pj_media_session_t;
/** Media socket info. */
typedef struct pj_media_sock_info
{
pj_sock_t rtp_sock, rtcp_sock;
pj_sockaddr_in rtp_addr_name;
} pj_media_sock_info;
/** Stream info. */
typedef struct pj_media_stream_info
{
pj_str_t type;
pj_media_dir_t dir;
pj_str_t transport;
pj_media_sock_info sock_info;
pj_str_t rem_addr;
unsigned short rem_port;
unsigned fmt_cnt;
pj_codec_id fmt[PJSDP_MAX_FMT];
} pj_media_stream_info;
/** Flag for modifying stream. */
enum
{
PJ_MEDIA_STREAM_MODIFY_DIR = 1,
};
/**
* Create new session offering.
*/
PJ_DECL(pj_media_session_t*)
pj_media_session_create ( pj_med_mgr_t *mgr, const pj_media_sock_info *skinfo );
/**
* Create new session based on peer's offering.
*/
PJ_DECL(pj_media_session_t*)
pj_media_session_create_from_sdp ( pj_med_mgr_t *mgr, const pjsdp_session_desc *sdp,
const pj_media_sock_info *skinfo);
/**
* Duplicate session. The new session is inactive.
*/
PJ_DECL(pj_media_session_t*)
pj_media_session_clone (const pj_media_session_t *session);
/**
* Create SDP description from the session.
*/
PJ_DECL(pjsdp_session_desc*)
pj_media_session_create_sdp ( const pj_media_session_t *session, pj_pool_t *pool,
pj_bool_t only_first_fmt);
/**
* Update session with SDP answer from peer. The session must NOT active.
*/
PJ_DECL(pj_status_t)
pj_media_session_update ( pj_media_session_t *session,
const pjsdp_session_desc *sdp);
/**
* Enumerate media streams in the session.
* @return the actual number of streams.
*/
PJ_DECL(unsigned)
pj_media_session_enum_streams (const pj_media_session_t *session,
unsigned count, const pj_media_stream_info *info[]);
/**
* Get stream statistics.
*/
PJ_DECL(pj_status_t)
pj_media_session_get_stat (const pj_media_session_t *session, unsigned index,
pj_media_stream_stat *tx_stat,
pj_media_stream_stat *rx_stat);
/**
* Modify stream, only when stream is inactive.
*/
PJ_DECL(pj_status_t)
pj_media_session_modify_stream (pj_media_session_t *session, unsigned index,
unsigned modify_flag, const pj_media_stream_info *info);
/**
* Activate all streams in media session.
*/
PJ_DECL(pj_status_t)
pj_media_session_activate (pj_media_session_t *session);
/**
* Activate individual stream in media session.
*/
PJ_DECL(pj_status_t)
pj_media_session_activate_stream (pj_media_session_t *session, unsigned index);
/**
* Destroy media session.
*/
PJ_DECL(pj_status_t)
pj_media_session_destroy (pj_media_session_t *session);
/**
* @}
*/
PJ_END_DECL
#endif /* __PJMEDIA_SESSION_H__ */
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