jibuf.c File Reference

Osmocom Jitter Buffer helpers. More...

#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/utils.h>
#include <osmocom/netif/amr.h>
#include <osmocom/netif/rtp.h>
#include <osmocom/netif/jibuf.h>
#include <arpa/inet.h>

Macros
#define	SAMPLES_PER_PKT   160
#define	SAMPLE_RATE   8000
#define	JIBUF_DEFAULT_MIN_DELAY_MS   60
#define	JIBUF_DEFAULT_MAX_DELAY_MS   200
#define	JIBUF_REFERENCE_TS_FREQ   60
#define	JIBUF_BUFFER_RECALC_FREQ   40
#define	JIBUF_ALLOWED_PKT_DROP   3
#define	JIBUF_ALLOWED_PKT_CONSECUTIVE_DROP   1
#define	JIBUF_BUFFER_INC_STEP   20
#define	JIBUF_BUFFER_DEC_STEP   5
#define	JIBUF_SKEW_WEIGHT   ((double)1/32)
#define	JIBUF_MSGB_CB(__msgb)

Functions
struct osmo_jibuf *	osmo_jibuf_alloc (void *talloc_ctx)
	Allocate a new jitter buffer instance.
void	osmo_jibuf_delete (struct osmo_jibuf *jb)
	Destroy a previously allocated jitter buffer instance.
int	osmo_jibuf_enqueue (struct osmo_jibuf *jb, struct msgb *msg)
	Try to enqueue a packet into the jitter buffer.
bool	osmo_jibuf_empty (struct osmo_jibuf *jb)
	Check whether the jitter buffer instance has packets queued or not.
void	osmo_jibuf_set_min_delay (struct osmo_jibuf *jb, uint32_t min_delay)
	Set minimum buffer size for the jitter buffer.
void	osmo_jibuf_set_max_delay (struct osmo_jibuf *jb, uint32_t max_delay)
	Set maximum buffer size for the jitter buffer.
void	osmo_jibuf_enable_skew_compensation (struct osmo_jibuf *jb, bool enable)
	Toggle use of skew detection and compensation mechanism.
void	osmo_jibuf_set_dequeue_cb (struct osmo_jibuf *jb, osmo_jibuf_dequeue_cb dequeue_cb, void *cb_data)
	Set dequeue callback for the jitter buffer.

Detailed Description

Osmocom Jitter Buffer helpers.

Macro Definition Documentation

JIBUF_MSGB_CB

#define JIBUF_MSGB_CB

(

__msgb

)

Value:

((struct osmo_jibuf_msgb_cb *)&((__msgb)->cb[0]))