4 This file is part of PulseAudio.
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
36 #include <pulse/pulseaudio.h>
38 #define TIME_EVENT_USEC 50000
40 #if PA_API_VERSION != 9
41 #error Invalid PulseAudio API version
44 static enum { RECORD
, PLAYBACK
} mode
= PLAYBACK
;
46 static pa_context
*context
= NULL
;
47 static pa_stream
*stream
= NULL
;
48 static pa_mainloop_api
*mainloop_api
= NULL
;
50 static void *buffer
= NULL
;
51 static size_t buffer_length
= 0, buffer_index
= 0;
53 static pa_io_event
* stdio_event
= NULL
;
55 static char *stream_name
= NULL
, *client_name
= NULL
, *device
= NULL
;
57 static int verbose
= 0;
58 static pa_volume_t volume
= PA_VOLUME_NORM
;
60 static pa_sample_spec sample_spec
= {
61 .format
= PA_SAMPLE_S16LE
,
66 static pa_channel_map channel_map
;
67 static int channel_map_set
= 0;
69 /* A shortcut for terminating the application */
70 static void quit(int ret
) {
72 mainloop_api
->quit(mainloop_api
, ret
);
75 /* Write some data to the stream */
76 static void do_stream_write(size_t length
) {
80 if (!buffer
|| !buffer_length
)
84 if (l
> buffer_length
)
87 if (pa_stream_write(stream
, (uint8_t*) buffer
+ buffer_index
, l
, NULL
, 0, PA_SEEK_RELATIVE
) < 0) {
88 fprintf(stderr
, "pa_stream_write() failed: %s\n", pa_strerror(pa_context_errno(context
)));
99 buffer_index
= buffer_length
= 0;
103 /* This is called whenever new data may be written to the stream */
104 static void stream_write_callback(pa_stream
*s
, size_t length
, void *userdata
) {
108 mainloop_api
->io_enable(stdio_event
, PA_IO_EVENT_INPUT
);
113 do_stream_write(length
);
116 /* This is called whenever new data may is available */
117 static void stream_read_callback(pa_stream
*s
, size_t length
, void *userdata
) {
122 mainloop_api
->io_enable(stdio_event
, PA_IO_EVENT_OUTPUT
);
124 if (pa_stream_peek(s
, &data
, &length
) < 0) {
125 fprintf(stderr
, "pa_stream_peek() failed: %s\n", pa_strerror(pa_context_errno(context
)));
130 assert(data
&& length
);
133 fprintf(stderr
, "Buffer overrun, dropping incoming data\n");
134 if (pa_stream_drop(s
) < 0) {
135 fprintf(stderr
, "pa_stream_drop() failed: %s\n", pa_strerror(pa_context_errno(context
)));
141 buffer
= pa_xmalloc(buffer_length
= length
);
142 memcpy(buffer
, data
, length
);
147 /* This routine is called whenever the stream state changes */
148 static void stream_state_callback(pa_stream
*s
, void *userdata
) {
151 switch (pa_stream_get_state(s
)) {
152 case PA_STREAM_CREATING
:
153 case PA_STREAM_TERMINATED
:
156 case PA_STREAM_READY
:
158 const pa_buffer_attr
*a
;
160 fprintf(stderr
, "Stream successfully created.\n");
162 if (!(a
= pa_stream_get_buffer_attr(s
)))
163 fprintf(stderr
, "pa_stream_get_buffer_attr() failed: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s
))));
166 if (mode
== PLAYBACK
)
167 fprintf(stderr
, "Buffer metrics: maxlength=%u, tlength=%u, prebuf=%u, minreq=%u\n", a
->maxlength
, a
->tlength
, a
->prebuf
, a
->minreq
);
169 assert(mode
== RECORD
);
170 fprintf(stderr
, "Buffer metrics: maxlength=%u, fragsize=%u\n", a
->maxlength
, a
->fragsize
);
179 case PA_STREAM_FAILED
:
181 fprintf(stderr
, "Stream error: %s\n", pa_strerror(pa_context_errno(pa_stream_get_context(s
))));
186 /* This is called whenever the context status changes */
187 static void context_state_callback(pa_context
*c
, void *userdata
) {
190 switch (pa_context_get_state(c
)) {
191 case PA_CONTEXT_CONNECTING
:
192 case PA_CONTEXT_AUTHORIZING
:
193 case PA_CONTEXT_SETTING_NAME
:
196 case PA_CONTEXT_READY
: {
199 assert(c
&& !stream
);
202 fprintf(stderr
, "Connection established.\n");
204 if (!(stream
= pa_stream_new(c
, stream_name
, &sample_spec
, channel_map_set
? &channel_map
: NULL
))) {
205 fprintf(stderr
, "pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(c
)));
209 pa_stream_set_state_callback(stream
, stream_state_callback
, NULL
);
210 pa_stream_set_write_callback(stream
, stream_write_callback
, NULL
);
211 pa_stream_set_read_callback(stream
, stream_read_callback
, NULL
);
213 if (mode
== PLAYBACK
) {
215 if ((r
= pa_stream_connect_playback(stream
, device
, NULL
, 0, pa_cvolume_set(&cv
, sample_spec
.channels
, volume
), NULL
)) < 0) {
216 fprintf(stderr
, "pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(c
)));
221 if ((r
= pa_stream_connect_record(stream
, device
, NULL
, 0)) < 0) {
222 fprintf(stderr
, "pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(c
)));
230 case PA_CONTEXT_TERMINATED
:
234 case PA_CONTEXT_FAILED
:
236 fprintf(stderr
, "Connection failure: %s\n", pa_strerror(pa_context_errno(c
)));
247 /* Connection draining complete */
248 static void context_drain_complete(pa_context
*c
, void *userdata
) {
249 pa_context_disconnect(c
);
252 /* Stream draining complete */
253 static void stream_drain_complete(pa_stream
*s
, int success
, void *userdata
) {
257 fprintf(stderr
, "Failed to drain stream: %s\n", pa_strerror(pa_context_errno(context
)));
262 fprintf(stderr
, "Playback stream drained.\n");
264 pa_stream_disconnect(stream
);
265 pa_stream_unref(stream
);
268 if (!(o
= pa_context_drain(context
, context_drain_complete
, NULL
)))
269 pa_context_disconnect(context
);
272 fprintf(stderr
, "Draining connection to server.\n");
276 /* New data on STDIN **/
277 static void stdin_callback(pa_mainloop_api
*a
, pa_io_event
*e
, int fd
, pa_io_event_flags_t f
, void *userdata
) {
280 assert(a
== mainloop_api
&& e
&& stdio_event
== e
);
283 mainloop_api
->io_enable(stdio_event
, PA_IO_EVENT_NULL
);
287 if (!stream
|| pa_stream_get_state(stream
) != PA_STREAM_READY
|| !(l
= w
= pa_stream_writable_size(stream
)))
290 buffer
= pa_xmalloc(l
);
292 if ((r
= read(fd
, buffer
, l
)) <= 0) {
297 fprintf(stderr
, "Got EOF.\n");
299 if (!(o
= pa_stream_drain(stream
, stream_drain_complete
, NULL
))) {
300 fprintf(stderr
, "pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(context
)));
305 pa_operation_unref(o
);
307 fprintf(stderr
, "read() failed: %s\n", strerror(errno
));
311 mainloop_api
->io_free(stdio_event
);
323 /* Some data may be written to STDOUT */
324 static void stdout_callback(pa_mainloop_api
*a
, pa_io_event
*e
, int fd
, pa_io_event_flags_t f
, void *userdata
) {
326 assert(a
== mainloop_api
&& e
&& stdio_event
== e
);
329 mainloop_api
->io_enable(stdio_event
, PA_IO_EVENT_NULL
);
333 assert(buffer_length
);
335 if ((r
= write(fd
, (uint8_t*) buffer
+buffer_index
, buffer_length
)) <= 0) {
336 fprintf(stderr
, "write() failed: %s\n", strerror(errno
));
339 mainloop_api
->io_free(stdio_event
);
347 if (!buffer_length
) {
350 buffer_length
= buffer_index
= 0;
354 /* UNIX signal to quit recieved */
355 static void exit_signal_callback(pa_mainloop_api
*m
, pa_signal_event
*e
, int sig
, void *userdata
) {
357 fprintf(stderr
, "Got signal, exiting.\n");
361 /* Show the current latency */
362 static void stream_update_timing_callback(pa_stream
*s
, int success
, void *userdata
) {
363 pa_usec_t latency
, usec
;
369 pa_stream_get_time(s
, &usec
) < 0 ||
370 pa_stream_get_latency(s
, &latency
, &negative
) < 0) {
371 fprintf(stderr
, "Failed to get latency: %s\n", pa_strerror(pa_context_errno(context
)));
376 fprintf(stderr
, "Time: %0.3f sec; Latency: %0.0f usec. \r",
377 (float) usec
/ 1000000,
378 (float) latency
* (negative
?-1:1));
381 /* Someone requested that the latency is shown */
382 static void sigusr1_signal_callback(pa_mainloop_api
*m
, pa_signal_event
*e
, int sig
, void *userdata
) {
387 pa_operation_unref(pa_stream_update_timing_info(stream
, stream_update_timing_callback
, NULL
));
390 static void time_event_callback(pa_mainloop_api
*m
, pa_time_event
*e
, const struct timeval
*tv
, void *userdata
) {
393 if (stream
&& pa_stream_get_state(stream
) == PA_STREAM_READY
) {
395 if (!(o
= pa_stream_update_timing_info(stream
, stream_update_timing_callback
, NULL
)))
396 fprintf(stderr
, "pa_stream_update_timing_info() failed: %s\n", pa_strerror(pa_context_errno(context
)));
398 pa_operation_unref(o
);
401 pa_gettimeofday(&next
);
402 pa_timeval_add(&next
, TIME_EVENT_USEC
);
404 m
->time_restart(e
, &next
);
407 static void help(const char *argv0
) {
409 printf("%s [options]\n\n"
410 " -h, --help Show this help\n"
411 " --version Show version\n\n"
412 " -r, --record Create a connection for recording\n"
413 " -p, --playback Create a connection for playback\n\n"
414 " -v, --verbose Enable verbose operations\n\n"
415 " -s, --server=SERVER The name of the server to connect to\n"
416 " -d, --device=DEVICE The name of the sink/source to connect to\n"
417 " -n, --client-name=NAME How to call this client on the server\n"
418 " --stream-name=NAME How to call this stream on the server\n"
419 " --volume=VOLUME Specify the initial (linear) volume in range 0...65536\n"
420 " --rate=SAMPLERATE The sample rate in Hz (defaults to 44100)\n"
421 " --format=SAMPLEFORMAT The sample type, one of s16le, s16be, u8, float32le,\n"
422 " float32be, ulaw, alaw (defaults to s16ne)\n"
423 " --channels=CHANNELS The number of channels, 1 for mono, 2 for stereo\n"
425 " --channel-map=CHANNELMAP Channel map to use instead of the default\n",
439 int main(int argc
, char *argv
[]) {
440 pa_mainloop
* m
= NULL
;
442 char *bn
, *server
= NULL
;
443 pa_time_event
*time_event
= NULL
;
445 static const struct option long_options
[] = {
446 {"record", 0, NULL
, 'r'},
447 {"playback", 0, NULL
, 'p'},
448 {"device", 1, NULL
, 'd'},
449 {"server", 1, NULL
, 's'},
450 {"client-name", 1, NULL
, 'n'},
451 {"stream-name", 1, NULL
, ARG_STREAM_NAME
},
452 {"version", 0, NULL
, ARG_VERSION
},
453 {"help", 0, NULL
, 'h'},
454 {"verbose", 0, NULL
, 'v'},
455 {"volume", 1, NULL
, ARG_VOLUME
},
456 {"rate", 1, NULL
, ARG_SAMPLERATE
},
457 {"format", 1, NULL
, ARG_SAMPLEFORMAT
},
458 {"channels", 1, NULL
, ARG_CHANNELS
},
459 {"channel-map", 1, NULL
, ARG_CHANNELMAP
},
463 if (!(bn
= strrchr(argv
[0], '/')))
468 if (strstr(bn
, "rec") || strstr(bn
, "mon"))
470 else if (strstr(bn
, "cat") || strstr(bn
, "play"))
473 while ((c
= getopt_long(argc
, argv
, "rpd:s:n:hv", long_options
, NULL
)) != -1) {
482 printf("pacat "PACKAGE_VERSION
"\nCompiled with libpulse %s\nLinked with libpulse %s\n", pa_get_headers_version(), pa_get_library_version());
496 device
= pa_xstrdup(optarg
);
501 server
= pa_xstrdup(optarg
);
505 pa_xfree(client_name
);
506 client_name
= pa_xstrdup(optarg
);
509 case ARG_STREAM_NAME
:
510 pa_xfree(stream_name
);
511 stream_name
= pa_xstrdup(optarg
);
519 int v
= atoi(optarg
);
520 volume
= v
< 0 ? 0 : v
;
525 sample_spec
.channels
= atoi(optarg
);
528 case ARG_SAMPLEFORMAT
:
529 sample_spec
.format
= pa_parse_sample_format(optarg
);
533 sample_spec
.rate
= atoi(optarg
);
537 if (!pa_channel_map_parse(&channel_map
, optarg
)) {
538 fprintf(stderr
, "Invalid channel map\n");
550 if (!pa_sample_spec_valid(&sample_spec
)) {
551 fprintf(stderr
, "Invalid sample specification\n");
555 if (channel_map_set
&& channel_map
.channels
!= sample_spec
.channels
) {
556 fprintf(stderr
, "Channel map doesn't match sample specification\n");
561 char t
[PA_SAMPLE_SPEC_SNPRINT_MAX
];
562 pa_sample_spec_snprint(t
, sizeof(t
), &sample_spec
);
563 fprintf(stderr
, "Opening a %s stream with sample specification '%s'.\n", mode
== RECORD
? "recording" : "playback", t
);
566 if (!(optind
>= argc
)) {
567 if (optind
+1 == argc
) {
570 if ((fd
= open(argv
[optind
], mode
== PLAYBACK
? O_RDONLY
: O_WRONLY
|O_TRUNC
|O_CREAT
, 0666)) < 0) {
571 fprintf(stderr
, "open(): %s\n", strerror(errno
));
575 if (dup2(fd
, mode
== PLAYBACK
? 0 : 1) < 0) {
576 fprintf(stderr
, "dup2(): %s\n", strerror(errno
));
583 stream_name
= pa_xstrdup(argv
[optind
]);
586 fprintf(stderr
, "Too many arguments.\n");
592 client_name
= pa_xstrdup(bn
);
595 stream_name
= pa_xstrdup(client_name
);
597 /* Set up a new main loop */
598 if (!(m
= pa_mainloop_new())) {
599 fprintf(stderr
, "pa_mainloop_new() failed.\n");
603 mainloop_api
= pa_mainloop_get_api(m
);
605 r
= pa_signal_init(mainloop_api
);
607 pa_signal_new(SIGINT
, exit_signal_callback
, NULL
);
608 pa_signal_new(SIGTERM
, exit_signal_callback
, NULL
);
610 pa_signal_new(SIGUSR1
, sigusr1_signal_callback
, NULL
);
613 signal(SIGPIPE
, SIG_IGN
);
616 if (!(stdio_event
= mainloop_api
->io_new(mainloop_api
,
617 mode
== PLAYBACK
? STDIN_FILENO
: STDOUT_FILENO
,
618 mode
== PLAYBACK
? PA_IO_EVENT_INPUT
: PA_IO_EVENT_OUTPUT
,
619 mode
== PLAYBACK
? stdin_callback
: stdout_callback
, NULL
))) {
620 fprintf(stderr
, "io_new() failed.\n");
624 /* Create a new connection context */
625 if (!(context
= pa_context_new(mainloop_api
, client_name
))) {
626 fprintf(stderr
, "pa_context_new() failed.\n");
630 pa_context_set_state_callback(context
, context_state_callback
, NULL
);
632 /* Connect the context */
633 pa_context_connect(context
, server
, 0, NULL
);
638 pa_gettimeofday(&tv
);
639 pa_timeval_add(&tv
, TIME_EVENT_USEC
);
641 if (!(time_event
= mainloop_api
->time_new(mainloop_api
, &tv
, time_event_callback
, NULL
))) {
642 fprintf(stderr
, "time_new() failed.\n");
647 /* Run the main loop */
648 if (pa_mainloop_run(m
, &ret
) < 0) {
649 fprintf(stderr
, "pa_mainloop_run() failed.\n");
655 pa_stream_unref(stream
);
658 pa_context_unref(context
);
661 assert(mainloop_api
);
662 mainloop_api
->io_free(stdio_event
);
666 assert(mainloop_api
);
667 mainloop_api
->time_free(time_event
);
679 pa_xfree(client_name
);
680 pa_xfree(stream_name
);