static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
struct userdata *u = PA_SINK(o)->userdata;
switch (code) {
case PA_SINK_MESSAGE_SET_STATE:
if (PA_PTR_TO_UINT(data) == PA_SINK_RUNNING)
pa_rtclock_get(&u->timestamp);
break;
case PA_SINK_MESSAGE_GET_LATENCY: {
struct timeval now;
pa_rtclock_get(&now);
if (pa_timeval_cmp(&u->timestamp, &now) > 0)
*((pa_usec_t*) data) = 0;
else
*((pa_usec_t*) data) = pa_timeval_diff(&u->timestamp, &now);
break;
}
}
return pa_sink_process_msg(o, code, data, offset, chunk);
}
static gboolean prepare_func(GSource *source, gint *timeout) {
pa_glib_mainloop *g = (pa_glib_mainloop*) source;
g_assert(g);
g_assert(timeout);
scan_dead(g);
if (g->n_enabled_defer_events) {
*timeout = 0;
return TRUE;
} else if (g->n_enabled_time_events) {
pa_time_event *t;
GTimeVal now;
struct timeval tvnow;
pa_usec_t usec;
t = find_next_time_event(g);
g_assert(t);
g_get_current_time(&now);
tvnow.tv_sec = now.tv_sec;
tvnow.tv_usec = now.tv_usec;
if (pa_timeval_cmp(&t->timeval, &tvnow) <= 0) {
*timeout = 0;
return TRUE;
}
usec = pa_timeval_diff(&t->timeval, &tvnow);
*timeout = (gint) (usec / 1000);
} else
*timeout = -1;
return FALSE;
}
static struct timeval* wallclock_from_rtclock(struct timeval *tv) {
struct timeval wc_now, rt_now;
pa_assert(tv);
pa_gettimeofday(&wc_now);
pa_rtclock_get(&rt_now);
/* pa_timeval_sub() saturates on underflow! */
if (pa_timeval_cmp(&rt_now, tv) < 0)
pa_timeval_add(&wc_now, pa_timeval_diff(tv, &rt_now));
else
pa_timeval_sub(&wc_now, pa_timeval_diff(&rt_now, tv));
*tv = wc_now;
return tv;
}
pa_usec_t pa_rtclock_age(const struct timeval *tv) {
struct timeval now;
pa_assert(tv);
return pa_timeval_diff(pa_rtclock_get(&now), tv);
}
/* This is called whenever the context status changes */
static void context_state_callback(pa_context *c, void *userdata) {
fail_unless(c != NULL);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
break;
case PA_CONTEXT_READY: {
pa_stream_flags_t flags = PA_STREAM_AUTO_TIMING_UPDATE;
pa_buffer_attr attr;
static const pa_sample_spec ss = {
.format = PA_SAMPLE_S16LE,
.rate = 44100,
.channels = 2
};
pa_zero(attr);
attr.maxlength = (uint32_t) -1;
attr.tlength = latency > 0 ? (uint32_t) pa_usec_to_bytes(latency, &ss) : (uint32_t) -1;
attr.prebuf = (uint32_t) -1;
attr.minreq = (uint32_t) -1;
attr.fragsize = (uint32_t) -1;
#ifdef INTERPOLATE
flags |= PA_STREAM_INTERPOLATE_TIMING;
#endif
if (latency > 0)
flags |= PA_STREAM_ADJUST_LATENCY;
pa_log("Connection established");
stream = pa_stream_new(c, "interpol-test", &ss, NULL);
fail_unless(stream != NULL);
if (playback) {
pa_assert_se(pa_stream_connect_playback(stream, NULL, &attr, flags, NULL, NULL) == 0);
pa_stream_set_write_callback(stream, stream_write_cb, NULL);
} else {
pa_assert_se(pa_stream_connect_record(stream, NULL, &attr, flags) == 0);
pa_stream_set_read_callback(stream, stream_read_cb, NULL);
}
pa_stream_set_latency_update_callback(stream, stream_latency_cb, NULL);
break;
}
case PA_CONTEXT_TERMINATED:
break;
case PA_CONTEXT_FAILED:
default:
pa_log_error("Context error: %s", pa_strerror(pa_context_errno(c)));
ck_abort();
}
}
START_TEST (interpol_test) {
pa_threaded_mainloop* m = NULL;
int k;
struct timeval start, last_info = { 0, 0 };
pa_usec_t old_t = 0, old_rtc = 0;
#ifdef CORK
bool corked = false;
#endif
/* Set up a new main loop */
m = pa_threaded_mainloop_new();
fail_unless(m != NULL);
mainloop_api = pa_threaded_mainloop_get_api(m);
fail_unless(mainloop_api != NULL);
context = pa_context_new(mainloop_api, bname);
fail_unless(context != NULL);
pa_context_set_state_callback(context, context_state_callback, NULL);
fail_unless(pa_context_connect(context, NULL, 0, NULL) >= 0);
pa_gettimeofday(&start);
fail_unless(pa_threaded_mainloop_start(m) >= 0);
/* #ifdef CORK */
for (k = 0; k < 20000; k++)
/* #else */
/* for (k = 0; k < 2000; k++) */
/* #endif */
{
bool success = false, changed = false;
pa_usec_t t, rtc, d;
struct timeval now, tv;
bool playing = false;
pa_threaded_mainloop_lock(m);
if (stream) {
const pa_timing_info *info;
if (pa_stream_get_time(stream, &t) >= 0 &&
pa_stream_get_latency(stream, &d, NULL) >= 0)
success = true;
if ((info = pa_stream_get_timing_info(stream))) {
if (memcmp(&last_info, &info->timestamp, sizeof(struct timeval))) {
changed = true;
last_info = info->timestamp;
}
if (info->playing)
playing = true;
}
}
pa_threaded_mainloop_unlock(m);
pa_gettimeofday(&now);
if (success) {
#ifdef CORK
bool cork_now;
#endif
rtc = pa_timeval_diff(&now, &start);
pa_log_info("%i\t%llu\t%llu\t%llu\t%llu\t%lli\t%u\t%u\t%llu\t%llu\n", k,
(unsigned long long) rtc,
(unsigned long long) t,
(unsigned long long) (rtc-old_rtc),
(unsigned long long) (t-old_t),
(signed long long) rtc - (signed long long) t,
changed,
playing,
(unsigned long long) latency,
(unsigned long long) d);
fflush(stdout);
old_t = t;
old_rtc = rtc;
#ifdef CORK
cork_now = (rtc / (2*PA_USEC_PER_SEC)) % 2 == 1;
if (corked != cork_now) {
pa_threaded_mainloop_lock(m);
pa_operation_unref(pa_stream_cork(stream, cork_now, NULL, NULL));
pa_threaded_mainloop_unlock(m);
pa_log(cork_now ? "Corking" : "Uncorking");
corked = cork_now;
}
#endif
}
/* Spin loop, ugly but normal usleep() is just too badly grained */
tv = now;
while (pa_timeval_diff(pa_gettimeofday(&now), &tv) < 1000)
pa_thread_yield();
}
if (m)
pa_threaded_mainloop_stop(m);
if (stream) {
pa_stream_disconnect(stream);
pa_stream_unref(stream);
}
if (context) {
pa_context_disconnect(context);
pa_context_unref(context);
}
if (m)
pa_threaded_mainloop_free(m);
}
END_TEST
int main(int argc, char *argv[]) {
int failed = 0;
Suite *s;
TCase *tc;
SRunner *sr;
if (!getenv("MAKE_CHECK"))
pa_log_set_level(PA_LOG_DEBUG);
bname = argv[0];
playback = argc <= 1 || !pa_streq(argv[1], "-r");
latency = (argc >= 2 && !pa_streq(argv[1], "-r")) ? atoi(argv[1]) : (argc >= 3 ? atoi(argv[2]) : 0);
s = suite_create("Interpol");
tc = tcase_create("interpol");
tcase_add_test(tc, interpol_test);
tcase_set_timeout(tc, 5 * 60);
suite_add_tcase(s, tc);
sr = srunner_create(s);
srunner_run_all(sr, CK_NORMAL);
failed = srunner_ntests_failed(sr);
srunner_free(sr);
return (failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}