96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
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/*
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* Copyright (C) 2005, Attractel OOD
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*
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* Contributors:
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* Slav Klenov <slav@securax.org>
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*
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* Copyright on this file is disclaimed to Digium for inclusion in Asterisk
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Jitterbuffering algorithm.
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*
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*/
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#ifndef _FIXEDJITTERBUF_H_
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#define _FIXEDJITTERBUF_H_
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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/* return codes */
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enum {
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FIXED_JB_OK,
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FIXED_JB_DROP,
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FIXED_JB_INTERP,
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FIXED_JB_NOFRAME
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};
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/* defaults */
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#define FIXED_JB_SIZE_DEFAULT 200
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#define FIXED_JB_RESYNCH_THRESHOLD_DEFAULT 1000
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/* jb configuration properties */
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struct fixed_jb_conf
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{
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long jbsize;
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long resync_threshold;
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};
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struct fixed_jb_frame
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{
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void *data;
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long ts;
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long ms;
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long delivery;
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struct fixed_jb_frame *next;
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struct fixed_jb_frame *prev;
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};
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struct fixed_jb;
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/* jb interface */
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struct fixed_jb * fixed_jb_new(struct fixed_jb_conf *conf);
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void fixed_jb_destroy(struct fixed_jb *jb);
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int fixed_jb_put_first(struct fixed_jb *jb, void *data, long ms, long ts, long now);
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int fixed_jb_put(struct fixed_jb *jb, void *data, long ms, long ts, long now);
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int fixed_jb_get(struct fixed_jb *jb, struct fixed_jb_frame *frame, long now, long interpl);
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long fixed_jb_next(struct fixed_jb *jb);
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int fixed_jb_remove(struct fixed_jb *jb, struct fixed_jb_frame *frameout);
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void fixed_jb_set_force_resynch(struct fixed_jb *jb);
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/*! \brief Checks if the given time stamp is late */
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int fixed_jb_is_late(struct fixed_jb *jb, long ts);
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#if defined(__cplusplus) || defined(c_plusplus)
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}
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#endif
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#endif /* _FIXEDJITTERBUF_H_ */
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