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