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116 lines
4.2 KiB
C
116 lines
4.2 KiB
C
/*
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* FILE: pdb.h - Participant database
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* AUTHOR: Colin Perkins <csp@csperkins.org>
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* Martin Benes <martinbenesh@gmail.com>
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* Lukas Hejtmanek <xhejtman@ics.muni.cz>
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* Petr Holub <hopet@ics.muni.cz>
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* Milos Liska <xliska@fi.muni.cz>
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* Jiri Matela <matela@ics.muni.cz>
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* Dalibor Matura <255899@mail.muni.cz>
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* Ian Wesley-Smith <iwsmith@cct.lsu.edu>
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*
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* Copyright (c) 2002 University of Southern California
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* Copyright (c) 2005-2010 CESNET z.s.p.o.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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*
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* This product includes software developed by the University of Southern
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* California Information Sciences Institute. This product also includes
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* software developed by CESNET z.s.p.o.
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*
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* 4. Neither the name of the University, Institute, CESNET nor the names of
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* its contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Revision: 1.2 $
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* $Date: 2009/12/11 15:29:39 $
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*
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* A participant database entry. This holds (pointers to) all the
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* information about a particular participant in a teleconference.
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*
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*/
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/**
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* Deletes decoder for participant when the participant is deleted
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*/
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typedef void (*decoder_state_deleter_t)(void *);
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struct pdb_e {
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uint32_t ssrc;
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char *sdes_cname;
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char *sdes_name;
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char *sdes_email;
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char *sdes_phone;
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char *sdes_loc;
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char *sdes_tool;
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char *sdes_note;
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void *decoder_state; ///< state of decoder for participant
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decoder_state_deleter_t decoder_state_deleter; ///< decoder state deleter
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uint8_t pt; /* Last seen RTP payload type for this participant */
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struct pbuf *playout_buffer;
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struct tfrc *tfrc_state;
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struct timeval creation_time; /* Time this entry was created */
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};
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struct pdb; /* The participant database */
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/**
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* @param delay_ms delay to be added to playback. Main reason is to give user a possibility to
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* sync audio and video.
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*/
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struct pdb *pdb_init(volatile int *delay_ms);
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void pdb_destroy(struct pdb **db);
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int pdb_add(struct pdb *db, uint32_t ssrc);
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struct pdb_e *pdb_get(struct pdb *db, uint32_t ssrc);
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/* Remove the entry indexed by "ssrc" from the database, returning a
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* pointer to it in "item". Returns zero if the entry was present.
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*/
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int pdb_remove(struct pdb *db, uint32_t ssrc, struct pdb_e **item);
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void pdb_destroy_item(struct pdb_e *item);
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typedef void *pdb_iter_t;
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/*
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* Iterator for the database.
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*/
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struct pdb_e *pdb_iter_init(struct pdb *db, pdb_iter_t *it);
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struct pdb_e *pdb_iter_next(pdb_iter_t *it);
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void pdb_iter_done(pdb_iter_t *it);
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#ifdef __cplusplus
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}
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#endif
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