2 This file is part of PulseAudio.
4 PulseAudio is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published
6 by the Free Software Foundation; either version 2 of the License,
7 or (at your option) any later version.
9 PulseAudio is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public License
15 along with PulseAudio; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
34 #include <pulse/pulseaudio.h>
35 #include <pulse/mainloop.h>
37 #include <pulsecore/thread.h>
39 static pa_context
*context
= NULL
;
40 static pa_stream
*stream
= NULL
;
41 static pa_mainloop_api
*mainloop_api
= NULL
;
43 static void stream_write_cb(pa_stream
*p
, size_t nbytes
, void *userdata
) {
44 /* Just some silence */
45 pa_stream_write(p
, pa_xmalloc0(nbytes
), nbytes
, pa_xfree
, 0, PA_SEEK_RELATIVE
);
48 /* This is called whenever the context status changes */
49 static void context_state_callback(pa_context
*c
, void *userdata
) {
52 switch (pa_context_get_state(c
)) {
53 case PA_CONTEXT_CONNECTING
:
54 case PA_CONTEXT_AUTHORIZING
:
55 case PA_CONTEXT_SETTING_NAME
:
58 case PA_CONTEXT_READY
: {
60 static const pa_sample_spec ss
= {
61 .format
= PA_SAMPLE_S16LE
,
66 fprintf(stderr
, "Connection established.\n");
68 stream
= pa_stream_new(c
, "interpol-test", &ss
, NULL
);
71 pa_stream_connect_playback(stream
, NULL
, NULL
, PA_STREAM_INTERPOLATE_TIMING
|PA_STREAM_AUTO_TIMING_UPDATE
, NULL
, NULL
);
72 pa_stream_set_write_callback(stream
, stream_write_cb
, NULL
);
77 case PA_CONTEXT_TERMINATED
:
80 case PA_CONTEXT_FAILED
:
82 fprintf(stderr
, "Context error: %s\n", pa_strerror(pa_context_errno(c
)));
87 int main(int argc
, char *argv
[]) {
88 pa_threaded_mainloop
* m
= NULL
;
90 struct timeval start
, last_info
= { 0, 0 };
91 pa_usec_t old_t
= 0, old_rtc
= 0;
93 /* Set up a new main loop */
94 m
= pa_threaded_mainloop_new();
97 mainloop_api
= pa_threaded_mainloop_get_api(m
);
99 context
= pa_context_new(mainloop_api
, argv
[0]);
102 pa_context_set_state_callback(context
, context_state_callback
, NULL
);
104 r
= pa_context_connect(context
, NULL
, 0, NULL
);
107 pa_gettimeofday(&start
);
109 pa_threaded_mainloop_start(m
);
111 for (k
= 0; k
< 5000; k
++) {
112 pa_bool_t success
= FALSE
, changed
= FALSE
;
114 struct timeval now
, tv
;
115 pa_bool_t playing
= FALSE
;
117 pa_threaded_mainloop_lock(m
);
120 const pa_timing_info
*info
;
122 if (pa_stream_get_time(stream
, &t
) >= 0)
125 if ((info
= pa_stream_get_timing_info(stream
))) {
126 if (memcmp(&last_info
, &info
->timestamp
, sizeof(struct timeval
))) {
128 last_info
= info
->timestamp
;
135 pa_threaded_mainloop_unlock(m
);
137 pa_gettimeofday(&now
);
140 rtc
= pa_timeval_diff(&now
, &start
);
141 printf("%i\t%llu\t%llu\t%llu\t%llu\t%u\t%u\n", k
, (unsigned long long) rtc
, (unsigned long long) t
, (unsigned long long) (rtc
-old_rtc
), (unsigned long long) (t
-old_t
), changed
, playing
);
147 /* Spin loop, ugly but normal usleep() is just too badly grained */
150 while (pa_timeval_diff(pa_gettimeofday(&now
), &tv
) < 1000)
155 pa_threaded_mainloop_stop(m
);
158 pa_stream_disconnect(stream
);
159 pa_stream_unref(stream
);
163 pa_context_disconnect(context
);
164 pa_context_unref(context
);
168 pa_threaded_mainloop_free(m
);