tests: jibuf_tool: Initial commit
Change-Id: I92307c8b1483dd488339771462290aae0ae5689a
This commit is contained in:
parent
ce820763c1
commit
7787c8cce3
|
|
@ -1,7 +1,7 @@
|
|||
AM_CFLAGS = -Wall -I$(top_srcdir)/include $(LIBOSMOCORE_CFLAGS) -g
|
||||
AM_LDFLAGS = $(LIBOSMOCORE_LDFLAGS)
|
||||
|
||||
check_PROGRAMS = osmux/osmux_test jibuf/jibuf_test
|
||||
check_PROGRAMS = osmux/osmux_test jibuf/jibuf_test jibuf/jibuf_tool
|
||||
|
||||
osmux_osmux_test_SOURCES = osmux/osmux_test.c
|
||||
osmux_osmux_test_LDADD = $(LIBOSMOCORE_LIBS) $(top_builddir)/src/libosmonetif.la
|
||||
|
|
@ -9,6 +9,9 @@ osmux_osmux_test_LDADD = $(LIBOSMOCORE_LIBS) $(top_builddir)/src/libosmonetif.la
|
|||
jibuf_jibuf_test_SOURCES = jibuf/jibuf_test.c
|
||||
jibuf_jibuf_test_LDADD = $(LIBOSMOCORE_LIBS) $(top_builddir)/src/libosmonetif.la
|
||||
|
||||
jibuf_jibuf_tool_SOURCES = jibuf/jibuf_tool.c
|
||||
jibuf_jibuf_tool_LDADD = $(LIBOSMOCORE_LIBS) $(top_builddir)/src/libosmonetif.la
|
||||
|
||||
# The `:;' works around a Bash 3.2 bug when the output is not writeable.
|
||||
$(srcdir)/package.m4: $(top_srcdir)/configure.ac
|
||||
:;{ \
|
||||
|
|
|
|||
|
|
@ -0,0 +1,382 @@
|
|||
/* (C) 2017 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
|
||||
*
|
||||
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-2.0+
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdbool.h>
|
||||
#include <unistd.h>
|
||||
#include <stdint.h>
|
||||
#include <inttypes.h>
|
||||
#include <string.h>
|
||||
#include <signal.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <sys/time.h>
|
||||
|
||||
#include <osmocom/core/select.h>
|
||||
#include <osmocom/core/application.h>
|
||||
#include <osmocom/core/logging.h>
|
||||
#include <osmocom/core/msgb.h>
|
||||
#include <osmocom/core/linuxlist.h>
|
||||
#include <osmocom/netif/jibuf.h>
|
||||
#include <osmocom/netif/rtp.h>
|
||||
|
||||
/* Logging related stuff */
|
||||
#define INT2IDX(x) (-1*(x)-1)
|
||||
struct log_info_cat jibuf_test_cat[] = {
|
||||
[INT2IDX(DLJIBUF)] = {
|
||||
.name = "DLJIBUF",
|
||||
.description = "Osmocom Jitter Buffer",
|
||||
.enabled = 1, .loglevel = LOGL_DEBUG,
|
||||
},
|
||||
};
|
||||
const struct log_info jibuf_test_log_info = {
|
||||
.filter_fn = NULL,
|
||||
.cat = jibuf_test_cat,
|
||||
.num_cat = ARRAY_SIZE(jibuf_test_cat),
|
||||
};
|
||||
|
||||
/* RTP packet with AMR payload */
|
||||
static uint8_t rtp_pkt[] = {
|
||||
0x80, 0x62, 0x3f, 0xcc, 0x00, 0x01, 0xa7, 0x6f, /* RTP */
|
||||
0x07, 0x09, 0x00, 0x62, 0x20, 0x14, 0xff, 0xd4, /* AMR */
|
||||
0xf9, 0xff, 0xfb, 0xe7, 0xeb, 0xf9, 0x9f, 0xf8,
|
||||
0xf2, 0x26, 0x33, 0x65, 0x54,
|
||||
};
|
||||
|
||||
static void sigalarm_handler(int foo)
|
||||
{
|
||||
printf("FAIL: test did not run successfully\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
#define SAMPLES_PER_PKT 160
|
||||
#define RTP_FREQ_MS 20
|
||||
#define RTP_PKTS_PER_SEC (1000/RTP_FREQ_MS)
|
||||
#define NET_DELAY_MS 300
|
||||
#define GENERATED_JITTER_MS 160
|
||||
#define NUM_PACKETS_TO_SEND 1000
|
||||
|
||||
#define TRACE_PACKE_DEBUG 0
|
||||
#define TRACE_PACKET_GNUPLOT 1
|
||||
#define TRACE_PACKET_TEST_JITTER 0
|
||||
|
||||
struct checkpoint {
|
||||
struct timeval ts;
|
||||
int transit;
|
||||
double jitter;
|
||||
};
|
||||
|
||||
struct rtp_pkt_info {
|
||||
struct osmo_timer_list timer;
|
||||
struct timeval tx_prev_time;
|
||||
struct timeval tx_time;
|
||||
uint32_t tx_delay;
|
||||
struct checkpoint prequeue;
|
||||
struct checkpoint postqueue;
|
||||
};
|
||||
|
||||
struct rtp_pkt_info_cb {
|
||||
struct rtp_pkt_info *data;
|
||||
};
|
||||
|
||||
struct osmo_jibuf *jb;
|
||||
uint16_t rtp_first_seq;
|
||||
uint16_t rtp_next_seq;
|
||||
uint32_t rtp_next_ts;
|
||||
uint32_t packets_sent;
|
||||
uint32_t packets_received;
|
||||
uint32_t packets_dropped;
|
||||
uint32_t packets_too_much_jitter;
|
||||
|
||||
struct rtp_pkt_info *msgb_get_pinfo(struct msgb* msg)
|
||||
{
|
||||
struct rtp_pkt_info_cb *cb = (struct rtp_pkt_info_cb *)&((msg)->cb[0]);
|
||||
return cb->data;
|
||||
}
|
||||
|
||||
static uint32_t timeval2ms(const struct timeval *ts)
|
||||
{
|
||||
return ts->tv_sec * 1000 + ts->tv_usec / 1000;
|
||||
}
|
||||
|
||||
int calc_relative_transmit_time(struct timeval *tx_0, struct timeval *tx_f,
|
||||
struct timeval *rx_0, struct timeval *rx_f)
|
||||
{
|
||||
struct timeval txdiff, rxdiff, diff;
|
||||
timersub(rx_f, rx_0, &rxdiff);
|
||||
timersub(tx_f, tx_0, &txdiff);
|
||||
timersub(&rxdiff, &txdiff, &diff);
|
||||
return timeval2ms(&diff);
|
||||
}
|
||||
|
||||
void trace_pkt(struct msgb *msg, char* info) {
|
||||
struct timeval now, total_delay;
|
||||
struct rtp_hdr *rtph = osmo_rtp_get_hdr(msg);
|
||||
struct rtp_pkt_info *pinfo = msgb_get_pinfo(msg);
|
||||
|
||||
gettimeofday(&now, NULL);
|
||||
timersub(&now, &pinfo->tx_time, &total_delay);
|
||||
|
||||
#if TRACE_PACKET_DEBUG
|
||||
uint32_t total_delay_ms = timeval2ms(&total_delay);
|
||||
LOGP(DLJIBUF, LOGL_DEBUG, "%s: seq=%"PRIu16" ts=%"PRIu32" (%ld.%06ld) tx_delay=%"PRIu32 \
|
||||
" end_delay=%"PRIu32" pre_trans=%d pre_jitter=%f post_trans=%d post_jitter=%f\n",
|
||||
info, ntohs(rtph->sequence), ntohl(rtph->timestamp),
|
||||
pinfo->tx_time.tv_sec, pinfo->tx_time.tv_usec,
|
||||
pinfo->tx_delay, total_delay_ms,
|
||||
pinfo->prequeue.transit, pinfo->prequeue.jitter,
|
||||
pinfo->postqueue.transit, pinfo->postqueue.jitter);
|
||||
#endif
|
||||
|
||||
#if TRACE_PACKET_GNUPLOT
|
||||
/* Used as input for gplot: "gnuplot -p jitter.plt -"" */
|
||||
uint32_t tx_time_ms = timeval2ms(&pinfo->tx_time);
|
||||
uint32_t prequeue_time_ms = timeval2ms(&pinfo->prequeue.ts);
|
||||
uint32_t postqueue_time_ms = timeval2ms(&pinfo->postqueue.ts);
|
||||
fprintf(stderr, "%"PRIu16"\t%"PRIu32"\t%"PRIu32"\t%"PRIu32"\t%d\t%d\t%f\t%f\t%"PRIu32"\t%"PRIu32"\n",
|
||||
ntohs(rtph->sequence), tx_time_ms,
|
||||
prequeue_time_ms, postqueue_time_ms,
|
||||
pinfo->prequeue.transit, pinfo->postqueue.transit,
|
||||
pinfo->prequeue.jitter, pinfo->postqueue.jitter,
|
||||
packets_dropped, jb->threshold_delay);
|
||||
#endif
|
||||
}
|
||||
|
||||
void pkt_add_result(struct msgb *msg, bool dropped)
|
||||
{
|
||||
struct rtp_pkt_info *pinfo = msgb_get_pinfo(msg);
|
||||
|
||||
if (dropped) {
|
||||
packets_dropped++;
|
||||
trace_pkt(msg,"dropped");
|
||||
} else {
|
||||
packets_received++;
|
||||
trace_pkt(msg,"received");
|
||||
|
||||
if (pinfo->prequeue.jitter < pinfo->postqueue.jitter) {
|
||||
packets_too_much_jitter++;
|
||||
#if TRACE_PACKET_TEST_JITTER
|
||||
LOGP(DLJIBUF, LOGL_ERROR, "JITTER HIGHER THAN REF: %s seq=%"PRIu16" ts=%"PRIu32 \
|
||||
" (%ld.%06ld) tx_delay=%"PRIu32" end_delay=%"PRIu32 \
|
||||
" pre_trans=%d pre_jitter=%f post_trans=%d post_jitter=%f dropped=%"PRIu32 \
|
||||
" buffer=%"PRIu32"\n",
|
||||
info, ntohs(rtph->sequence), ntohl(rtph->timestamp),
|
||||
pinfo->tx_time.tv_sec, pinfo->tx_time.tv_usec,
|
||||
pinfo->tx_delay, total_delay_ms,
|
||||
pinfo->prequeue.transit, pinfo->prequeue.jitter,
|
||||
pinfo->postqueue.transit, pinfo->postqueue.jitter,
|
||||
packets_dropped, jb->threshold_delay);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void dequeue_cb(struct msgb *msg, void *data)
|
||||
{
|
||||
static struct checkpoint postqueue_prev;
|
||||
static bool postqueue_started = false;
|
||||
|
||||
struct rtp_pkt_info *pinfo = msgb_get_pinfo(msg);
|
||||
|
||||
gettimeofday(&pinfo->postqueue.ts, NULL);
|
||||
|
||||
if (postqueue_started) {
|
||||
pinfo->postqueue.transit = calc_relative_transmit_time(
|
||||
&pinfo->tx_prev_time, &pinfo->tx_time,
|
||||
&postqueue_prev.ts, &pinfo->postqueue.ts);
|
||||
|
||||
uint32_t abs_transit = pinfo->postqueue.transit *
|
||||
( pinfo->postqueue.transit >= 0 ? 1 : -1 );
|
||||
|
||||
pinfo->postqueue.jitter = postqueue_prev.jitter +
|
||||
((double)abs_transit - postqueue_prev.jitter)/16.0;
|
||||
} else {
|
||||
postqueue_started = true;
|
||||
pinfo->postqueue.transit = 0;
|
||||
pinfo->postqueue.jitter = 0;
|
||||
}
|
||||
|
||||
postqueue_prev = pinfo->postqueue;
|
||||
|
||||
pkt_add_result(msg, false);
|
||||
|
||||
osmo_timer_del(&pinfo->timer);
|
||||
msgb_free(msg);
|
||||
}
|
||||
|
||||
void pkt_arrived_cb(void *data)
|
||||
{
|
||||
static struct checkpoint prequeue_prev;
|
||||
static bool prequeue_started = false;
|
||||
|
||||
struct msgb *msg = (struct msgb*) data;
|
||||
struct rtp_pkt_info *pinfo = msgb_get_pinfo(msg);
|
||||
|
||||
gettimeofday(&pinfo->prequeue.ts, NULL);
|
||||
|
||||
if (prequeue_started) {
|
||||
pinfo->prequeue.transit = calc_relative_transmit_time(
|
||||
&pinfo->tx_prev_time, &pinfo->tx_time,
|
||||
&prequeue_prev.ts, &pinfo->prequeue.ts);
|
||||
|
||||
uint32_t abs_transit = pinfo->prequeue.transit *
|
||||
( pinfo->prequeue.transit >= 0 ? 1 : -1 );
|
||||
|
||||
pinfo->prequeue.jitter = prequeue_prev.jitter +
|
||||
((double)abs_transit - prequeue_prev.jitter)/16.0;
|
||||
} else {
|
||||
prequeue_started = true;
|
||||
pinfo->prequeue.transit = 0;
|
||||
pinfo->prequeue.jitter = 0;
|
||||
}
|
||||
|
||||
prequeue_prev = pinfo->prequeue;
|
||||
|
||||
int n = osmo_jibuf_enqueue(jb, msg);
|
||||
|
||||
if (n<0) {
|
||||
pkt_add_result(msg, true);
|
||||
osmo_timer_del(&pinfo->timer);
|
||||
msgb_free(msg);
|
||||
}
|
||||
}
|
||||
|
||||
void rand_send_rtp_packet()
|
||||
{
|
||||
static struct timeval tx_prev_time;
|
||||
|
||||
struct rtp_pkt_info *pinfo;
|
||||
struct rtp_hdr *rtph;
|
||||
struct msgb *msg;
|
||||
|
||||
/* Set fake prev_time for 1st packet. Otherwise transit calculations for first
|
||||
* packet can be really weird if they not arrive in order */
|
||||
if (rtp_next_seq == rtp_first_seq) {
|
||||
struct timeval now, time_rate = { .tv_sec = 0, .tv_usec = RTP_FREQ_MS * 1000};
|
||||
gettimeofday(&now, NULL);
|
||||
timersub(&now, &time_rate, &tx_prev_time);
|
||||
}
|
||||
|
||||
|
||||
msg = msgb_alloc(1500, "test");
|
||||
if (!msg)
|
||||
exit(EXIT_FAILURE);
|
||||
|
||||
memcpy(msg->data, rtp_pkt, sizeof(rtp_pkt));
|
||||
msgb_put(msg, sizeof(rtp_pkt));
|
||||
|
||||
rtph = osmo_rtp_get_hdr(msg);
|
||||
|
||||
rtph->sequence = htons(rtp_next_seq);
|
||||
rtp_next_seq++;
|
||||
|
||||
rtph->timestamp = htonl(rtp_next_ts);
|
||||
rtp_next_ts += SAMPLES_PER_PKT;
|
||||
|
||||
pinfo = talloc_zero(msg, struct rtp_pkt_info);
|
||||
struct rtp_pkt_info_cb *cb = (struct rtp_pkt_info_cb *)&((msg)->cb[0]);
|
||||
cb->data = pinfo;
|
||||
|
||||
gettimeofday(&pinfo->tx_time, NULL);
|
||||
pinfo->tx_prev_time = tx_prev_time;
|
||||
memset(&pinfo->timer, 0, sizeof(struct osmo_timer_list));
|
||||
pinfo->timer.cb = pkt_arrived_cb;
|
||||
pinfo->timer.data = msg;
|
||||
pinfo->tx_delay = NET_DELAY_MS + (random() % (GENERATED_JITTER_MS));
|
||||
|
||||
tx_prev_time = pinfo->tx_time;
|
||||
|
||||
/* TODO: add a random() to lose/drop packets */
|
||||
|
||||
osmo_timer_schedule(&pinfo->timer, 0, pinfo->tx_delay * 1000);
|
||||
}
|
||||
|
||||
void generate_pkt_cb(void *data)
|
||||
{
|
||||
static struct osmo_timer_list enqueue_timer = {.cb = generate_pkt_cb, .data = NULL};
|
||||
static struct timeval last_generated;
|
||||
|
||||
struct timeval time_rate = { .tv_sec = 0, .tv_usec = RTP_FREQ_MS * 1000};
|
||||
struct timeval sched_ts;
|
||||
|
||||
if (!packets_sent)
|
||||
gettimeofday(&last_generated, NULL);
|
||||
|
||||
rand_send_rtp_packet();
|
||||
packets_sent++;
|
||||
|
||||
timeradd(&last_generated, &time_rate, &sched_ts);
|
||||
last_generated = sched_ts;
|
||||
if (packets_sent < NUM_PACKETS_TO_SEND) {
|
||||
enqueue_timer.timeout = sched_ts;
|
||||
osmo_timer_add(&enqueue_timer);
|
||||
}
|
||||
}
|
||||
|
||||
void check_results()
|
||||
{
|
||||
uint32_t drop_threshold = NUM_PACKETS_TO_SEND * 5 / 100;
|
||||
if (packets_dropped > drop_threshold) {
|
||||
fprintf(stdout, "Too many dropped packets (%"PRIu32" > %"PRIu32")\n",
|
||||
packets_dropped, drop_threshold);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
uint32_t jitter_high_threshold = NUM_PACKETS_TO_SEND * 8 / 100;
|
||||
if (packets_too_much_jitter > jitter_high_threshold) {
|
||||
fprintf(stdout, "Too many packets with higher jitter (%"PRIu32" > %"PRIu32")\n",
|
||||
packets_too_much_jitter, jitter_high_threshold);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
int main(void)
|
||||
{
|
||||
|
||||
if (signal(SIGALRM, sigalarm_handler) == SIG_ERR) {
|
||||
perror("signal");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
/* This test doesn't use it, but jibuf requires it internally. */
|
||||
osmo_init_logging(&jibuf_test_log_info);
|
||||
log_set_category_filter(osmo_stderr_target, DLMIB, 1, LOGL_ERROR);
|
||||
log_set_print_filename(osmo_stderr_target, 0);
|
||||
log_set_log_level(osmo_stderr_target, LOGL_INFO);
|
||||
|
||||
srandom(time(NULL));
|
||||
rtp_first_seq = (uint16_t) random();
|
||||
rtp_next_seq = rtp_first_seq;
|
||||
rtp_next_ts = (uint32_t) random();
|
||||
jb = osmo_jibuf_alloc(NULL);
|
||||
|
||||
osmo_jibuf_set_min_delay(jb, GENERATED_JITTER_MS - RTP_FREQ_MS);
|
||||
osmo_jibuf_set_max_delay(jb, GENERATED_JITTER_MS + RTP_FREQ_MS*2);
|
||||
|
||||
osmo_jibuf_set_dequeue_cb(jb, dequeue_cb, NULL);
|
||||
|
||||
generate_pkt_cb(NULL);
|
||||
|
||||
/* If the test takes longer than twice the time needed to generate the packets
|
||||
plus 10 seconds, abort it */
|
||||
alarm(NUM_PACKETS_TO_SEND*20/1000 +10);
|
||||
|
||||
while((packets_received + packets_dropped) < NUM_PACKETS_TO_SEND)
|
||||
osmo_select_main(0);
|
||||
|
||||
osmo_jibuf_delete(jb);
|
||||
|
||||
check_results();
|
||||
|
||||
fprintf(stdout, "OK: Test passed\n");
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
#set terminal png size 1280,1024 enhanced font "Helvetica,20"
|
||||
#set output 'output.png'
|
||||
#set terminal qt
|
||||
#set output
|
||||
|
||||
set datafile separator "\t"
|
||||
set datafile missing '0'
|
||||
|
||||
#set multiplot
|
||||
|
||||
# key/legend
|
||||
set key top right
|
||||
set key box
|
||||
set key left bottom
|
||||
set key bmargin
|
||||
|
||||
|
||||
set title 'Jitter Graph'
|
||||
set xlabel 'Timestamp'
|
||||
set ylabel 'trans / jitter / delay / buffer size [ms]'
|
||||
set ytics nomirror
|
||||
|
||||
#set y2label 'delay [ms]'
|
||||
#set y2tics nomirror
|
||||
|
||||
plot \
|
||||
'/tmp/bla' using 3:5 with linespoints title 'pre.trans' axes x1y1, \
|
||||
'/tmp/bla' using 4:6 with linespoints title 'post.trans' axes x1y1, \
|
||||
'/tmp/bla' using 3:7 with linespoints title 'pre.jitter' axes x1y1, \
|
||||
'/tmp/bla' using 4:8 with linespoints title 'post.jitter' axes x1y1, \
|
||||
'/tmp/bla' using 3:9 with linespoints title 'pre.dropped' axes x1y1, \
|
||||
'/tmp/bla' using 3:10 with linespoints title 'pre.buffer' axes x1y1, \
|
||||
'/tmp/bla' using 3:((column(3)-column(2))) with linespoints title 'pre.delay' axes x1y1, \
|
||||
'/tmp/bla' using 4:((column(4)-column(2))) with linespoints title 'post.delay' axes x1y1
|
||||
pause mouse close; exit
|
||||
Loading…
Reference in New Issue