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modargs: New function: pa_modargs_get_value_double().
[pulseaudio-raopUDP/pulseaudio-raop-alac.git] / src / pulse / stream.c
blob2b6d3062ce8efabdcc5d854e2178eb2a008b3e3d
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2004-2006 Lennart Poettering
5 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
6
7 PulseAudio is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published
9 by the Free Software Foundation; either version 2.1 of the License,
10 or (at your option) any later version.
11
12 PulseAudio is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with PulseAudio; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 USA.
21 ***/
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <string.h>
28 #include <stdio.h>
29 #include <string.h>
30
31 #include <pulse/def.h>
32 #include <pulse/timeval.h>
33 #include <pulse/rtclock.h>
34 #include <pulse/xmalloc.h>
35 #include <pulse/fork-detect.h>
36
37 #include <pulsecore/pstream-util.h>
38 #include <pulsecore/log.h>
39 #include <pulsecore/hashmap.h>
40 #include <pulsecore/macro.h>
41 #include <pulsecore/core-rtclock.h>
42 #include <pulsecore/core-util.h>
43
44 #include "internal.h"
45 #include "stream.h"
46
47 #define AUTO_TIMING_INTERVAL_START_USEC (10*PA_USEC_PER_MSEC)
48 #define AUTO_TIMING_INTERVAL_END_USEC (1500*PA_USEC_PER_MSEC)
49
50 #define SMOOTHER_ADJUST_TIME (1000*PA_USEC_PER_MSEC)
51 #define SMOOTHER_HISTORY_TIME (5000*PA_USEC_PER_MSEC)
52 #define SMOOTHER_MIN_HISTORY (4)
53
54 pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec *ss, const pa_channel_map *map) {
55 return pa_stream_new_with_proplist(c, name, ss, map, NULL);
56 }
57
58 static void reset_callbacks(pa_stream *s) {
59 s->read_callback = NULL;
60 s->read_userdata = NULL;
61 s->write_callback = NULL;
62 s->write_userdata = NULL;
63 s->state_callback = NULL;
64 s->state_userdata = NULL;
65 s->overflow_callback = NULL;
66 s->overflow_userdata = NULL;
67 s->underflow_callback = NULL;
68 s->underflow_userdata = NULL;
69 s->latency_update_callback = NULL;
70 s->latency_update_userdata = NULL;
71 s->moved_callback = NULL;
72 s->moved_userdata = NULL;
73 s->suspended_callback = NULL;
74 s->suspended_userdata = NULL;
75 s->started_callback = NULL;
76 s->started_userdata = NULL;
77 s->event_callback = NULL;
78 s->event_userdata = NULL;
79 s->buffer_attr_callback = NULL;
80 s->buffer_attr_userdata = NULL;
81 }
82
83 static pa_stream *pa_stream_new_with_proplist_internal(
84 pa_context *c,
85 const char *name,
86 const pa_sample_spec *ss,
87 const pa_channel_map *map,
88 pa_format_info * const *formats,
89 unsigned int n_formats,
90 pa_proplist *p) {
91
92 pa_stream *s;
93 unsigned int i;
94
95 pa_assert(c);
96 pa_assert(PA_REFCNT_VALUE(c) >= 1);
97 pa_assert((ss == NULL && map == NULL) || (formats == NULL && n_formats == 0));
98 pa_assert(n_formats < PA_MAX_FORMATS);
99
100 PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
101 PA_CHECK_VALIDITY_RETURN_NULL(c, name || (p && pa_proplist_contains(p, PA_PROP_MEDIA_NAME)), PA_ERR_INVALID);
102
103 s = pa_xnew(pa_stream, 1);
104 PA_REFCNT_INIT(s);
105 s->context = c;
106 s->mainloop = c->mainloop;
107
108 s->direction = PA_STREAM_NODIRECTION;
109 s->state = PA_STREAM_UNCONNECTED;
110 s->flags = 0;
111
112 if (ss)
113 s->sample_spec = *ss;
114 else
115 pa_sample_spec_init(&s->sample_spec);
116
117 if (map)
118 s->channel_map = *map;
119 else
120 pa_channel_map_init(&s->channel_map);
121
122 s->n_formats = 0;
123 if (formats) {
124 s->n_formats = n_formats;
125 for (i = 0; i < n_formats; i++)
126 s->req_formats[i] = pa_format_info_copy(formats[i]);
127 }
128
129 /* We'll get the final negotiated format after connecting */
130 s->format = NULL;
131
132 s->direct_on_input = PA_INVALID_INDEX;
133
134 s->proplist = p ? pa_proplist_copy(p) : pa_proplist_new();
135 if (name)
136 pa_proplist_sets(s->proplist, PA_PROP_MEDIA_NAME, name);
137
138 s->channel = 0;
139 s->channel_valid = FALSE;
140 s->syncid = c->csyncid++;
141 s->stream_index = PA_INVALID_INDEX;
142
143 s->requested_bytes = 0;
144 memset(&s->buffer_attr, 0, sizeof(s->buffer_attr));
145
146 /* We initialize the target length here, so that if the user
147 * passes no explicit buffering metrics the default is similar to
148 * what older PA versions provided. */
149
150 s->buffer_attr.maxlength = (uint32_t) -1;
151 if (ss)
152 s->buffer_attr.tlength = (uint32_t) pa_usec_to_bytes(250*PA_USEC_PER_MSEC, ss); /* 250ms of buffering */
153 else {
154 /* FIXME: We assume a worst-case compressed format corresponding to
155 * 48000 Hz, 2 ch, S16 PCM, but this can very well be incorrect */
156 pa_sample_spec tmp_ss = {
157 .format = PA_SAMPLE_S16NE,
158 .rate = 48000,
159 .channels = 2,
160 };
161 s->buffer_attr.tlength = (uint32_t) pa_usec_to_bytes(250*PA_USEC_PER_MSEC, &tmp_ss); /* 250ms of buffering */
162 }
163 s->buffer_attr.minreq = (uint32_t) -1;
164 s->buffer_attr.prebuf = (uint32_t) -1;
165 s->buffer_attr.fragsize = (uint32_t) -1;
166
167 s->device_index = PA_INVALID_INDEX;
168 s->device_name = NULL;
169 s->suspended = FALSE;
170 s->corked = FALSE;
171
172 s->write_memblock = NULL;
173 s->write_data = NULL;
174
175 pa_memchunk_reset(&s->peek_memchunk);
176 s->peek_data = NULL;
177 s->record_memblockq = NULL;
178
179 memset(&s->timing_info, 0, sizeof(s->timing_info));
180 s->timing_info_valid = FALSE;
181
182 s->previous_time = 0;
183 s->latest_underrun_at_index = -1;
184
185 s->read_index_not_before = 0;
186 s->write_index_not_before = 0;
187 for (i = 0; i < PA_MAX_WRITE_INDEX_CORRECTIONS; i++)
188 s->write_index_corrections[i].valid = 0;
189 s->current_write_index_correction = 0;
190
191 s->auto_timing_update_event = NULL;
192 s->auto_timing_update_requested = FALSE;
193 s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
194
195 reset_callbacks(s);
196
197 s->smoother = NULL;
198
199 /* Refcounting is strictly one-way: from the "bigger" to the "smaller" object. */
200 PA_LLIST_PREPEND(pa_stream, c->streams, s);
201 pa_stream_ref(s);
202
203 return s;
204 }
205
206 pa_stream *pa_stream_new_with_proplist(
207 pa_context *c,
208 const char *name,
209 const pa_sample_spec *ss,
210 const pa_channel_map *map,
211 pa_proplist *p) {
212
213 pa_channel_map tmap;
214
215 PA_CHECK_VALIDITY_RETURN_NULL(c, ss && pa_sample_spec_valid(ss), PA_ERR_INVALID);
216 PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 12 || (ss->format != PA_SAMPLE_S32LE && ss->format != PA_SAMPLE_S32BE), PA_ERR_NOTSUPPORTED);
217 PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 15 || (ss->format != PA_SAMPLE_S24LE && ss->format != PA_SAMPLE_S24BE), PA_ERR_NOTSUPPORTED);
218 PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 15 || (ss->format != PA_SAMPLE_S24_32LE && ss->format != PA_SAMPLE_S24_32BE), PA_ERR_NOTSUPPORTED);
219 PA_CHECK_VALIDITY_RETURN_NULL(c, !map || (pa_channel_map_valid(map) && map->channels == ss->channels), PA_ERR_INVALID);
220
221 if (!map)
222 PA_CHECK_VALIDITY_RETURN_NULL(c, map = pa_channel_map_init_auto(&tmap, ss->channels, PA_CHANNEL_MAP_DEFAULT), PA_ERR_INVALID);
223
224 return pa_stream_new_with_proplist_internal(c, name, ss, map, NULL, 0, p);
225 }
226
227 pa_stream *pa_stream_new_extended(
228 pa_context *c,
229 const char *name,
230 pa_format_info * const *formats,
231 unsigned int n_formats,
232 pa_proplist *p) {
233
234 PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 21, PA_ERR_NOTSUPPORTED);
235
236 return pa_stream_new_with_proplist_internal(c, name, NULL, NULL, formats, n_formats, p);
237 }
238
239 static void stream_unlink(pa_stream *s) {
240 pa_operation *o, *n;
241 pa_assert(s);
242
243 if (!s->context)
244 return;
245
246 /* Detach from context */
247
248 /* Unref all operation objects that point to us */
249 for (o = s->context->operations; o; o = n) {
250 n = o->next;
251
252 if (o->stream == s)
253 pa_operation_cancel(o);
254 }
255
256 /* Drop all outstanding replies for this stream */
257 if (s->context->pdispatch)
258 pa_pdispatch_unregister_reply(s->context->pdispatch, s);
259
260 if (s->channel_valid) {
261 pa_hashmap_remove((s->direction == PA_STREAM_RECORD) ? s->context->record_streams : s->context->playback_streams, PA_UINT32_TO_PTR(s->channel));
262 s->channel = 0;
263 s->channel_valid = FALSE;
264 }
265
266 PA_LLIST_REMOVE(pa_stream, s->context->streams, s);
267 pa_stream_unref(s);
268
269 s->context = NULL;
270
271 if (s->auto_timing_update_event) {
272 pa_assert(s->mainloop);
273 s->mainloop->time_free(s->auto_timing_update_event);
274 }
275
276 reset_callbacks(s);
277 }
278
279 static void stream_free(pa_stream *s) {
280 unsigned int i;
281
282 pa_assert(s);
283
284 stream_unlink(s);
285
286 if (s->write_memblock) {
287 if (s->write_data)
288 pa_memblock_release(s->write_memblock);
289 pa_memblock_unref(s->write_memblock);
290 }
291
292 if (s->peek_memchunk.memblock) {
293 if (s->peek_data)
294 pa_memblock_release(s->peek_memchunk.memblock);
295 pa_memblock_unref(s->peek_memchunk.memblock);
296 }
297
298 if (s->record_memblockq)
299 pa_memblockq_free(s->record_memblockq);
300
301 if (s->proplist)
302 pa_proplist_free(s->proplist);
303
304 if (s->smoother)
305 pa_smoother_free(s->smoother);
306
307 for (i = 0; i < s->n_formats; i++)
308 pa_format_info_free(s->req_formats[i]);
309
310 if (s->format)
311 pa_format_info_free(s->format);
312
313 pa_xfree(s->device_name);
314 pa_xfree(s);
315 }
316
317 void pa_stream_unref(pa_stream *s) {
318 pa_assert(s);
319 pa_assert(PA_REFCNT_VALUE(s) >= 1);
320
321 if (PA_REFCNT_DEC(s) <= 0)
322 stream_free(s);
323 }
324
325 pa_stream* pa_stream_ref(pa_stream *s) {
326 pa_assert(s);
327 pa_assert(PA_REFCNT_VALUE(s) >= 1);
328
329 PA_REFCNT_INC(s);
330 return s;
331 }
332
333 pa_stream_state_t pa_stream_get_state(pa_stream *s) {
334 pa_assert(s);
335 pa_assert(PA_REFCNT_VALUE(s) >= 1);
336
337 return s->state;
338 }
339
340 pa_context* pa_stream_get_context(pa_stream *s) {
341 pa_assert(s);
342 pa_assert(PA_REFCNT_VALUE(s) >= 1);
343
344 return s->context;
345 }
346
347 uint32_t pa_stream_get_index(pa_stream *s) {
348 pa_assert(s);
349 pa_assert(PA_REFCNT_VALUE(s) >= 1);
350
351 PA_CHECK_VALIDITY_RETURN_ANY(s->context, !pa_detect_fork(), PA_ERR_FORKED, PA_INVALID_INDEX);
352 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX);
353
354 return s->stream_index;
355 }
356
357 void pa_stream_set_state(pa_stream *s, pa_stream_state_t st) {
358 pa_assert(s);
359 pa_assert(PA_REFCNT_VALUE(s) >= 1);
360
361 if (s->state == st)
362 return;
363
364 pa_stream_ref(s);
365
366 s->state = st;
367
368 if (s->state_callback)
369 s->state_callback(s, s->state_userdata);
370
371 if ((st == PA_STREAM_FAILED || st == PA_STREAM_TERMINATED))
372 stream_unlink(s);
373
374 pa_stream_unref(s);
375 }
376
377 static void request_auto_timing_update(pa_stream *s, pa_bool_t force) {
378 pa_assert(s);
379 pa_assert(PA_REFCNT_VALUE(s) >= 1);
380
381 if (!(s->flags & PA_STREAM_AUTO_TIMING_UPDATE))
382 return;
383
384 if (s->state == PA_STREAM_READY &&
385 (force || !s->auto_timing_update_requested)) {
386 pa_operation *o;
387
388 /* pa_log("Automatically requesting new timing data"); */
389
390 if ((o = pa_stream_update_timing_info(s, NULL, NULL))) {
391 pa_operation_unref(o);
392 s->auto_timing_update_requested = TRUE;
393 }
394 }
395
396 if (s->auto_timing_update_event) {
397 if (s->suspended && !force) {
398 pa_assert(s->mainloop);
399 s->mainloop->time_free(s->auto_timing_update_event);
400 s->auto_timing_update_event = NULL;
401 } else {
402 if (force)
403 s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
404
405 pa_context_rttime_restart(s->context, s->auto_timing_update_event, pa_rtclock_now() + s->auto_timing_interval_usec);
406
407 s->auto_timing_interval_usec = PA_MIN(AUTO_TIMING_INTERVAL_END_USEC, s->auto_timing_interval_usec*2);
408 }
409 }
410 }
411
412 void pa_command_stream_killed(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
413 pa_context *c = userdata;
414 pa_stream *s;
415 uint32_t channel;
416
417 pa_assert(pd);
418 pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_KILLED || command == PA_COMMAND_RECORD_STREAM_KILLED);
419 pa_assert(t);
420 pa_assert(c);
421 pa_assert(PA_REFCNT_VALUE(c) >= 1);
422
423 pa_context_ref(c);
424
425 if (pa_tagstruct_getu32(t, &channel) < 0 ||
426 !pa_tagstruct_eof(t)) {
427 pa_context_fail(c, PA_ERR_PROTOCOL);
428 goto finish;
429 }
430
431 if (!(s = pa_hashmap_get(command == PA_COMMAND_PLAYBACK_STREAM_KILLED ? c->playback_streams : c->record_streams, PA_UINT32_TO_PTR(channel))))
432 goto finish;
433
434 if (s->state != PA_STREAM_READY)
435 goto finish;
436
437 pa_context_set_error(c, PA_ERR_KILLED);
438 pa_stream_set_state(s, PA_STREAM_FAILED);
439
440 finish:
441 pa_context_unref(c);
442 }
443
444 static void check_smoother_status(pa_stream *s, pa_bool_t aposteriori, pa_bool_t force_start, pa_bool_t force_stop) {
445 pa_usec_t x;
446
447 pa_assert(s);
448 pa_assert(!force_start || !force_stop);
449
450 if (!s->smoother)
451 return;
452
453 x = pa_rtclock_now();
454
455 if (s->timing_info_valid) {
456 if (aposteriori)
457 x -= s->timing_info.transport_usec;
458 else
459 x += s->timing_info.transport_usec;
460 }
461
462 if (s->suspended || s->corked || force_stop)
463 pa_smoother_pause(s->smoother, x);
464 else if (force_start || s->buffer_attr.prebuf == 0) {
465
466 if (!s->timing_info_valid &&
467 !aposteriori &&
468 !force_start &&
469 !force_stop &&
470 s->context->version >= 13) {
471
472 /* If the server supports STARTED events we take them as
473 * indications when audio really starts/stops playing, if
474 * we don't have any timing info yet -- instead of trying
475 * to be smart and guessing the server time. Otherwise the
476 * unknown transport delay adds too much noise to our time
477 * calculations. */
478
479 return;
480 }
481
482 pa_smoother_resume(s->smoother, x, TRUE);
483 }
484
485 /* Please note that we have no idea if playback actually started
486 * if prebuf is non-zero! */
487 }
488
489 static void auto_timing_update_callback(pa_mainloop_api *m, pa_time_event *e, const struct timeval *t, void *userdata);
490
491 void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
492 pa_context *c = userdata;
493 pa_stream *s;
494 uint32_t channel;
495 const char *dn;
496 pa_bool_t suspended;
497 uint32_t di;
498 pa_usec_t usec = 0;
499 uint32_t maxlength = 0, fragsize = 0, minreq = 0, tlength = 0, prebuf = 0;
500
501 pa_assert(pd);
502 pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_MOVED || command == PA_COMMAND_RECORD_STREAM_MOVED);
503 pa_assert(t);
504 pa_assert(c);
505 pa_assert(PA_REFCNT_VALUE(c) >= 1);
506
507 pa_context_ref(c);
508
509 if (c->version < 12) {
510 pa_context_fail(c, PA_ERR_PROTOCOL);
511 goto finish;
512 }
513
514 if (pa_tagstruct_getu32(t, &channel) < 0 ||
515 pa_tagstruct_getu32(t, &di) < 0 ||
516 pa_tagstruct_gets(t, &dn) < 0 ||
517 pa_tagstruct_get_boolean(t, &suspended) < 0) {
518 pa_context_fail(c, PA_ERR_PROTOCOL);
519 goto finish;
520 }
521
522 if (c->version >= 13) {
523
524 if (command == PA_COMMAND_RECORD_STREAM_MOVED) {
525 if (pa_tagstruct_getu32(t, &maxlength) < 0 ||
526 pa_tagstruct_getu32(t, &fragsize) < 0 ||
527 pa_tagstruct_get_usec(t, &usec) < 0) {
528 pa_context_fail(c, PA_ERR_PROTOCOL);
529 goto finish;
530 }
531 } else {
532 if (pa_tagstruct_getu32(t, &maxlength) < 0 ||
533 pa_tagstruct_getu32(t, &tlength) < 0 ||
534 pa_tagstruct_getu32(t, &prebuf) < 0 ||
535 pa_tagstruct_getu32(t, &minreq) < 0 ||
536 pa_tagstruct_get_usec(t, &usec) < 0) {
537 pa_context_fail(c, PA_ERR_PROTOCOL);
538 goto finish;
539 }
540 }
541 }
542
543 if (!pa_tagstruct_eof(t)) {
544 pa_context_fail(c, PA_ERR_PROTOCOL);
545 goto finish;
546 }
547
548 if (!dn || di == PA_INVALID_INDEX) {
549 pa_context_fail(c, PA_ERR_PROTOCOL);
550 goto finish;
551 }
552
553 if (!(s = pa_hashmap_get(command == PA_COMMAND_PLAYBACK_STREAM_MOVED ? c->playback_streams : c->record_streams, PA_UINT32_TO_PTR(channel))))
554 goto finish;
555
556 if (s->state != PA_STREAM_READY)
557 goto finish;
558
559 if (c->version >= 13) {
560 if (s->direction == PA_STREAM_RECORD)
561 s->timing_info.configured_source_usec = usec;
562 else
563 s->timing_info.configured_sink_usec = usec;
564
565 s->buffer_attr.maxlength = maxlength;
566 s->buffer_attr.fragsize = fragsize;
567 s->buffer_attr.tlength = tlength;
568 s->buffer_attr.prebuf = prebuf;
569 s->buffer_attr.minreq = minreq;
570 }
571
572 pa_xfree(s->device_name);
573 s->device_name = pa_xstrdup(dn);
574 s->device_index = di;
575
576 s->suspended = suspended;
577
578 if ((s->flags & PA_STREAM_AUTO_TIMING_UPDATE) && !suspended && !s->auto_timing_update_event) {
579 s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
580 s->auto_timing_update_event = pa_context_rttime_new(s->context, pa_rtclock_now() + s->auto_timing_interval_usec, &auto_timing_update_callback, s);
581 request_auto_timing_update(s, TRUE);
582 }
583
584 check_smoother_status(s, TRUE, FALSE, FALSE);
585 request_auto_timing_update(s, TRUE);
586
587 if (s->moved_callback)
588 s->moved_callback(s, s->moved_userdata);
589
590 finish:
591 pa_context_unref(c);
592 }
593
594 void pa_command_stream_buffer_attr(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
595 pa_context *c = userdata;
596 pa_stream *s;
597 uint32_t channel;
598 pa_usec_t usec = 0;
599 uint32_t maxlength = 0, fragsize = 0, minreq = 0, tlength = 0, prebuf = 0;
600
601 pa_assert(pd);
602 pa_assert(command == PA_COMMAND_PLAYBACK_BUFFER_ATTR_CHANGED || command == PA_COMMAND_RECORD_BUFFER_ATTR_CHANGED);
603 pa_assert(t);
604 pa_assert(c);
605 pa_assert(PA_REFCNT_VALUE(c) >= 1);
606
607 pa_context_ref(c);
608
609 if (c->version < 15) {
610 pa_context_fail(c, PA_ERR_PROTOCOL);
611 goto finish;
612 }
613
614 if (pa_tagstruct_getu32(t, &channel) < 0) {
615 pa_context_fail(c, PA_ERR_PROTOCOL);
616 goto finish;
617 }
618
619 if (command == PA_COMMAND_RECORD_STREAM_MOVED) {
620 if (pa_tagstruct_getu32(t, &maxlength) < 0 ||
621 pa_tagstruct_getu32(t, &fragsize) < 0 ||
622 pa_tagstruct_get_usec(t, &usec) < 0) {
623 pa_context_fail(c, PA_ERR_PROTOCOL);
624 goto finish;
625 }
626 } else {
627 if (pa_tagstruct_getu32(t, &maxlength) < 0 ||
628 pa_tagstruct_getu32(t, &tlength) < 0 ||
629 pa_tagstruct_getu32(t, &prebuf) < 0 ||
630 pa_tagstruct_getu32(t, &minreq) < 0 ||
631 pa_tagstruct_get_usec(t, &usec) < 0) {
632 pa_context_fail(c, PA_ERR_PROTOCOL);
633 goto finish;
634 }
635 }
636
637 if (!pa_tagstruct_eof(t)) {
638 pa_context_fail(c, PA_ERR_PROTOCOL);
639 goto finish;
640 }
641
642 if (!(s = pa_hashmap_get(command == PA_COMMAND_PLAYBACK_BUFFER_ATTR_CHANGED ? c->playback_streams : c->record_streams, PA_UINT32_TO_PTR(channel))))
643 goto finish;
644
645 if (s->state != PA_STREAM_READY)
646 goto finish;
647
648 if (s->direction == PA_STREAM_RECORD)
649 s->timing_info.configured_source_usec = usec;
650 else
651 s->timing_info.configured_sink_usec = usec;
652
653 s->buffer_attr.maxlength = maxlength;
654 s->buffer_attr.fragsize = fragsize;
655 s->buffer_attr.tlength = tlength;
656 s->buffer_attr.prebuf = prebuf;
657 s->buffer_attr.minreq = minreq;
658
659 request_auto_timing_update(s, TRUE);
660
661 if (s->buffer_attr_callback)
662 s->buffer_attr_callback(s, s->buffer_attr_userdata);
663
664 finish:
665 pa_context_unref(c);
666 }
667
668 void pa_command_stream_suspended(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
669 pa_context *c = userdata;
670 pa_stream *s;
671 uint32_t channel;
672 pa_bool_t suspended;
673
674 pa_assert(pd);
675 pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_SUSPENDED || command == PA_COMMAND_RECORD_STREAM_SUSPENDED);
676 pa_assert(t);
677 pa_assert(c);
678 pa_assert(PA_REFCNT_VALUE(c) >= 1);
679
680 pa_context_ref(c);
681
682 if (c->version < 12) {
683 pa_context_fail(c, PA_ERR_PROTOCOL);
684 goto finish;
685 }
686
687 if (pa_tagstruct_getu32(t, &channel) < 0 ||
688 pa_tagstruct_get_boolean(t, &suspended) < 0 ||
689 !pa_tagstruct_eof(t)) {
690 pa_context_fail(c, PA_ERR_PROTOCOL);
691 goto finish;
692 }
693
694 if (!(s = pa_hashmap_get(command == PA_COMMAND_PLAYBACK_STREAM_SUSPENDED ? c->playback_streams : c->record_streams, PA_UINT32_TO_PTR(channel))))
695 goto finish;
696
697 if (s->state != PA_STREAM_READY)
698 goto finish;
699
700 s->suspended = suspended;
701
702 if ((s->flags & PA_STREAM_AUTO_TIMING_UPDATE) && !suspended && !s->auto_timing_update_event) {
703 s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
704 s->auto_timing_update_event = pa_context_rttime_new(s->context, pa_rtclock_now() + s->auto_timing_interval_usec, &auto_timing_update_callback, s);
705 request_auto_timing_update(s, TRUE);
706 }
707
708 check_smoother_status(s, TRUE, FALSE, FALSE);
709 request_auto_timing_update(s, TRUE);
710
711 if (s->suspended_callback)
712 s->suspended_callback(s, s->suspended_userdata);
713
714 finish:
715 pa_context_unref(c);
716 }
717
718 void pa_command_stream_started(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
719 pa_context *c = userdata;
720 pa_stream *s;
721 uint32_t channel;
722
723 pa_assert(pd);
724 pa_assert(command == PA_COMMAND_STARTED);
725 pa_assert(t);
726 pa_assert(c);
727 pa_assert(PA_REFCNT_VALUE(c) >= 1);
728
729 pa_context_ref(c);
730
731 if (c->version < 13) {
732 pa_context_fail(c, PA_ERR_PROTOCOL);
733 goto finish;
734 }
735
736 if (pa_tagstruct_getu32(t, &channel) < 0 ||
737 !pa_tagstruct_eof(t)) {
738 pa_context_fail(c, PA_ERR_PROTOCOL);
739 goto finish;
740 }
741
742 if (!(s = pa_hashmap_get(c->playback_streams, PA_UINT32_TO_PTR(channel))))
743 goto finish;
744
745 if (s->state != PA_STREAM_READY)
746 goto finish;
747
748 check_smoother_status(s, TRUE, TRUE, FALSE);
749 request_auto_timing_update(s, TRUE);
750
751 if (s->started_callback)
752 s->started_callback(s, s->started_userdata);
753
754 finish:
755 pa_context_unref(c);
756 }
757
758 void pa_command_stream_event(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
759 pa_context *c = userdata;
760 pa_stream *s;
761 uint32_t channel;
762 pa_proplist *pl = NULL;
763 const char *event;
764
765 pa_assert(pd);
766 pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_EVENT || command == PA_COMMAND_RECORD_STREAM_EVENT);
767 pa_assert(t);
768 pa_assert(c);
769 pa_assert(PA_REFCNT_VALUE(c) >= 1);
770
771 pa_context_ref(c);
772
773 if (c->version < 15) {
774 pa_context_fail(c, PA_ERR_PROTOCOL);
775 goto finish;
776 }
777
778 pl = pa_proplist_new();
779
780 if (pa_tagstruct_getu32(t, &channel) < 0 ||
781 pa_tagstruct_gets(t, &event) < 0 ||
782 pa_tagstruct_get_proplist(t, pl) < 0 ||
783 !pa_tagstruct_eof(t) || !event) {
784 pa_context_fail(c, PA_ERR_PROTOCOL);
785 goto finish;
786 }
787
788 if (!(s = pa_hashmap_get(command == PA_COMMAND_PLAYBACK_STREAM_EVENT ? c->playback_streams : c->record_streams, PA_UINT32_TO_PTR(channel))))
789 goto finish;
790
791 if (s->state != PA_STREAM_READY)
792 goto finish;
793
794 if (pa_streq(event, PA_STREAM_EVENT_FORMAT_LOST)) {
795 /* Let client know what the running time was when the stream had to be killed */
796 pa_usec_t stream_time;
797 if (pa_stream_get_time(s, &stream_time) == 0)
798 pa_proplist_setf(pl, "stream-time", "%llu", (unsigned long long) stream_time);
799 }
800
801 if (s->event_callback)
802 s->event_callback(s, event, pl, s->event_userdata);
803
804 finish:
805 pa_context_unref(c);
806
807 if (pl)
808 pa_proplist_free(pl);
809 }
810
811 void pa_command_request(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
812 pa_stream *s;
813 pa_context *c = userdata;
814 uint32_t bytes, channel;
815
816 pa_assert(pd);
817 pa_assert(command == PA_COMMAND_REQUEST);
818 pa_assert(t);
819 pa_assert(c);
820 pa_assert(PA_REFCNT_VALUE(c) >= 1);
821
822 pa_context_ref(c);
823
824 if (pa_tagstruct_getu32(t, &channel) < 0 ||
825 pa_tagstruct_getu32(t, &bytes) < 0 ||
826 !pa_tagstruct_eof(t)) {
827 pa_context_fail(c, PA_ERR_PROTOCOL);
828 goto finish;
829 }
830
831 if (!(s = pa_hashmap_get(c->playback_streams, PA_UINT32_TO_PTR(channel))))
832 goto finish;
833
834 if (s->state != PA_STREAM_READY)
835 goto finish;
836
837 s->requested_bytes += bytes;
838
839 /* pa_log("got request for %lli, now at %lli", (long long) bytes, (long long) s->requested_bytes); */
840
841 if (s->requested_bytes > 0 && s->write_callback)
842 s->write_callback(s, (size_t) s->requested_bytes, s->write_userdata);
843
844 finish:
845 pa_context_unref(c);
846 }
847
848 int64_t pa_stream_get_underflow_index(pa_stream *p)
849 {
850 pa_assert(p);
851 return p->latest_underrun_at_index;
852 }
853
854 void pa_command_overflow_or_underflow(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
855 pa_stream *s;
856 pa_context *c = userdata;
857 uint32_t channel;
858 int64_t offset = -1;
859
860 pa_assert(pd);
861 pa_assert(command == PA_COMMAND_OVERFLOW || command == PA_COMMAND_UNDERFLOW);
862 pa_assert(t);
863 pa_assert(c);
864 pa_assert(PA_REFCNT_VALUE(c) >= 1);
865
866 pa_context_ref(c);
867
868 if (pa_tagstruct_getu32(t, &channel) < 0) {
869 pa_context_fail(c, PA_ERR_PROTOCOL);
870 goto finish;
871 }
872
873 if (c->version >= 23 && command == PA_COMMAND_UNDERFLOW) {
874 if (pa_tagstruct_gets64(t, &offset) < 0) {
875 pa_context_fail(c, PA_ERR_PROTOCOL);
876 goto finish;
877 }
878 }
879
880 if (!pa_tagstruct_eof(t)) {
881 pa_context_fail(c, PA_ERR_PROTOCOL);
882 goto finish;
883 }
884
885 if (!(s = pa_hashmap_get(c->playback_streams, PA_UINT32_TO_PTR(channel))))
886 goto finish;
887
888 if (s->state != PA_STREAM_READY)
889 goto finish;
890
891 if (offset != -1)
892 s->latest_underrun_at_index = offset;
893
894 if (s->buffer_attr.prebuf > 0)
895 check_smoother_status(s, TRUE, FALSE, TRUE);
896
897 request_auto_timing_update(s, TRUE);
898
899 if (command == PA_COMMAND_OVERFLOW) {
900 if (s->overflow_callback)
901 s->overflow_callback(s, s->overflow_userdata);
902 } else if (command == PA_COMMAND_UNDERFLOW) {
903 if (s->underflow_callback)
904 s->underflow_callback(s, s->underflow_userdata);
905 }
906
907 finish:
908 pa_context_unref(c);
909 }
910
911 static void invalidate_indexes(pa_stream *s, pa_bool_t r, pa_bool_t w) {
912 pa_assert(s);
913 pa_assert(PA_REFCNT_VALUE(s) >= 1);
914
915 /* pa_log("invalidate r:%u w:%u tag:%u", r, w, s->context->ctag); */
916
917 if (s->state != PA_STREAM_READY)
918 return;
919
920 if (w) {
921 s->write_index_not_before = s->context->ctag;
922
923 if (s->timing_info_valid)
924 s->timing_info.write_index_corrupt = TRUE;
925
926 /* pa_log("write_index invalidated"); */
927 }
928
929 if (r) {
930 s->read_index_not_before = s->context->ctag;
931
932 if (s->timing_info_valid)
933 s->timing_info.read_index_corrupt = TRUE;
934
935 /* pa_log("read_index invalidated"); */
936 }
937
938 request_auto_timing_update(s, TRUE);
939 }
940
941 static void auto_timing_update_callback(pa_mainloop_api *m, pa_time_event *e, const struct timeval *t, void *userdata) {
942 pa_stream *s = userdata;
943
944 pa_assert(s);
945 pa_assert(PA_REFCNT_VALUE(s) >= 1);
946
947 pa_stream_ref(s);
948 request_auto_timing_update(s, FALSE);
949 pa_stream_unref(s);
950 }
951
952 static void create_stream_complete(pa_stream *s) {
953 pa_assert(s);
954 pa_assert(PA_REFCNT_VALUE(s) >= 1);
955 pa_assert(s->state == PA_STREAM_CREATING);
956
957 pa_stream_set_state(s, PA_STREAM_READY);
958
959 if (s->requested_bytes > 0 && s->write_callback)
960 s->write_callback(s, (size_t) s->requested_bytes, s->write_userdata);
961
962 if (s->flags & PA_STREAM_AUTO_TIMING_UPDATE) {
963 s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
964 pa_assert(!s->auto_timing_update_event);
965 s->auto_timing_update_event = pa_context_rttime_new(s->context, pa_rtclock_now() + s->auto_timing_interval_usec, &auto_timing_update_callback, s);
966
967 request_auto_timing_update(s, TRUE);
968 }
969
970 check_smoother_status(s, TRUE, FALSE, FALSE);
971 }
972
973 static void patch_buffer_attr(pa_stream *s, pa_buffer_attr *attr, pa_stream_flags_t *flags) {
974 const char *e;
975
976 pa_assert(s);
977 pa_assert(attr);
978
979 if ((e = getenv("PULSE_LATENCY_MSEC"))) {
980 uint32_t ms;
981
982 if (pa_atou(e, &ms) < 0 || ms <= 0)
983 pa_log_debug("Failed to parse $PULSE_LATENCY_MSEC: %s", e);
984 else {
985 attr->maxlength = (uint32_t) -1;
986 attr->tlength = pa_usec_to_bytes(ms * PA_USEC_PER_MSEC, &s->sample_spec);
987 attr->minreq = (uint32_t) -1;
988 attr->prebuf = (uint32_t) -1;
989 attr->fragsize = attr->tlength;
990 }
991
992 if (flags)
993 *flags |= PA_STREAM_ADJUST_LATENCY;
994 }
995
996 if (s->context->version >= 13)
997 return;
998
999 /* Version older than 0.9.10 didn't do server side buffer_attr
1000 * selection, hence we have to fake it on the client side. */
1001
1002 /* We choose fairly conservative values here, to not confuse
1003 * old clients with extremely large playback buffers */
1004
1005 if (attr->maxlength == (uint32_t) -1)
1006 attr->maxlength = 4*1024*1024; /* 4MB is the maximum queue length PulseAudio <= 0.9.9 supported. */
1007
1008 if (attr->tlength == (uint32_t) -1)
1009 attr->tlength = (uint32_t) pa_usec_to_bytes(250*PA_USEC_PER_MSEC, &s->sample_spec); /* 250ms of buffering */
1010
1011 if (attr->minreq == (uint32_t) -1)
1012 attr->minreq = (attr->tlength)/5; /* Ask for more data when there are only 200ms left in the playback buffer */
1013
1014 if (attr->prebuf == (uint32_t) -1)
1015 attr->prebuf = attr->tlength; /* Start to play only when the playback is fully filled up once */
1016
1017 if (attr->fragsize == (uint32_t) -1)
1018 attr->fragsize = attr->tlength; /* Pass data to the app only when the buffer is filled up once */
1019 }
1020
1021 void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1022 pa_stream *s = userdata;
1023 uint32_t requested_bytes = 0;
1024
1025 pa_assert(pd);
1026 pa_assert(s);
1027 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1028 pa_assert(s->state == PA_STREAM_CREATING);
1029
1030 pa_stream_ref(s);
1031
1032 if (command != PA_COMMAND_REPLY) {
1033 if (pa_context_handle_error(s->context, command, t, FALSE) < 0)
1034 goto finish;
1035
1036 pa_stream_set_state(s, PA_STREAM_FAILED);
1037 goto finish;
1038 }
1039
1040 if (pa_tagstruct_getu32(t, &s->channel) < 0 ||
1041 s->channel == PA_INVALID_INDEX ||
1042 ((s->direction != PA_STREAM_UPLOAD) && (pa_tagstruct_getu32(t, &s->stream_index) < 0 || s->stream_index == PA_INVALID_INDEX)) ||
1043 ((s->direction != PA_STREAM_RECORD) && pa_tagstruct_getu32(t, &requested_bytes) < 0)) {
1044 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1045 goto finish;
1046 }
1047
1048 s->requested_bytes = (int64_t) requested_bytes;
1049
1050 if (s->context->version >= 9) {
1051 if (s->direction == PA_STREAM_PLAYBACK) {
1052 if (pa_tagstruct_getu32(t, &s->buffer_attr.maxlength) < 0 ||
1053 pa_tagstruct_getu32(t, &s->buffer_attr.tlength) < 0 ||
1054 pa_tagstruct_getu32(t, &s->buffer_attr.prebuf) < 0 ||
1055 pa_tagstruct_getu32(t, &s->buffer_attr.minreq) < 0) {
1056 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1057 goto finish;
1058 }
1059 } else if (s->direction == PA_STREAM_RECORD) {
1060 if (pa_tagstruct_getu32(t, &s->buffer_attr.maxlength) < 0 ||
1061 pa_tagstruct_getu32(t, &s->buffer_attr.fragsize) < 0) {
1062 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1063 goto finish;
1064 }
1065 }
1066 }
1067
1068 if (s->context->version >= 12 && s->direction != PA_STREAM_UPLOAD) {
1069 pa_sample_spec ss;
1070 pa_channel_map cm;
1071 const char *dn = NULL;
1072 pa_bool_t suspended;
1073
1074 if (pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
1075 pa_tagstruct_get_channel_map(t, &cm) < 0 ||
1076 pa_tagstruct_getu32(t, &s->device_index) < 0 ||
1077 pa_tagstruct_gets(t, &dn) < 0 ||
1078 pa_tagstruct_get_boolean(t, &suspended) < 0) {
1079 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1080 goto finish;
1081 }
1082
1083 if (!dn || s->device_index == PA_INVALID_INDEX ||
1084 ss.channels != cm.channels ||
1085 !pa_channel_map_valid(&cm) ||
1086 !pa_sample_spec_valid(&ss) ||
1087 (s->n_formats == 0 && (
1088 (!(s->flags & PA_STREAM_FIX_FORMAT) && ss.format != s->sample_spec.format) ||
1089 (!(s->flags & PA_STREAM_FIX_RATE) && ss.rate != s->sample_spec.rate) ||
1090 (!(s->flags & PA_STREAM_FIX_CHANNELS) && !pa_channel_map_equal(&cm, &s->channel_map))))) {
1091 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1092 goto finish;
1093 }
1094
1095 pa_xfree(s->device_name);
1096 s->device_name = pa_xstrdup(dn);
1097 s->suspended = suspended;
1098
1099 s->channel_map = cm;
1100 s->sample_spec = ss;
1101 }
1102
1103 if (s->context->version >= 13 && s->direction != PA_STREAM_UPLOAD) {
1104 pa_usec_t usec;
1105
1106 if (pa_tagstruct_get_usec(t, &usec) < 0) {
1107 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1108 goto finish;
1109 }
1110
1111 if (s->direction == PA_STREAM_RECORD)
1112 s->timing_info.configured_source_usec = usec;
1113 else
1114 s->timing_info.configured_sink_usec = usec;
1115 }
1116
1117 if ((s->context->version >= 21 && s->direction == PA_STREAM_PLAYBACK)
1118 || s->context->version >= 22) {
1119
1120 pa_format_info *f = pa_format_info_new();
1121 pa_tagstruct_get_format_info(t, f);
1122
1123 if (pa_format_info_valid(f))
1124 s->format = f;
1125 else {
1126 pa_format_info_free(f);
1127 if (s->n_formats > 0) {
1128 /* We used the extended API, so we should have got back a proper format */
1129 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1130 goto finish;
1131 }
1132 }
1133 }
1134
1135 if (!pa_tagstruct_eof(t)) {
1136 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1137 goto finish;
1138 }
1139
1140 if (s->direction == PA_STREAM_RECORD) {
1141 pa_assert(!s->record_memblockq);
1142
1143 s->record_memblockq = pa_memblockq_new(
1144 "client side record memblockq",
1145 0,
1146 s->buffer_attr.maxlength,
1147 0,
1148 &s->sample_spec,
1149 1,
1150 0,
1151 0,
1152 NULL);
1153 }
1154
1155 s->channel_valid = TRUE;
1156 pa_hashmap_put((s->direction == PA_STREAM_RECORD) ? s->context->record_streams : s->context->playback_streams, PA_UINT32_TO_PTR(s->channel), s);
1157
1158 create_stream_complete(s);
1159
1160 finish:
1161 pa_stream_unref(s);
1162 }
1163
1164 static int create_stream(
1165 pa_stream_direction_t direction,
1166 pa_stream *s,
1167 const char *dev,
1168 const pa_buffer_attr *attr,
1169 pa_stream_flags_t flags,
1170 const pa_cvolume *volume,
1171 pa_stream *sync_stream) {
1172
1173 pa_tagstruct *t;
1174 uint32_t tag;
1175 pa_bool_t volume_set = !!volume;
1176 pa_cvolume cv;
1177 uint32_t i;
1178
1179 pa_assert(s);
1180 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1181 pa_assert(direction == PA_STREAM_PLAYBACK || direction == PA_STREAM_RECORD);
1182
1183 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1184 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE);
1185 PA_CHECK_VALIDITY(s->context, s->direct_on_input == PA_INVALID_INDEX || direction == PA_STREAM_RECORD, PA_ERR_BADSTATE);
1186 PA_CHECK_VALIDITY(s->context, !(flags & ~(PA_STREAM_START_CORKED|
1187 PA_STREAM_INTERPOLATE_TIMING|
1188 PA_STREAM_NOT_MONOTONIC|
1189 PA_STREAM_AUTO_TIMING_UPDATE|
1190 PA_STREAM_NO_REMAP_CHANNELS|
1191 PA_STREAM_NO_REMIX_CHANNELS|
1192 PA_STREAM_FIX_FORMAT|
1193 PA_STREAM_FIX_RATE|
1194 PA_STREAM_FIX_CHANNELS|
1195 PA_STREAM_DONT_MOVE|
1196 PA_STREAM_VARIABLE_RATE|
1197 PA_STREAM_PEAK_DETECT|
1198 PA_STREAM_START_MUTED|
1199 PA_STREAM_ADJUST_LATENCY|
1200 PA_STREAM_EARLY_REQUESTS|
1201 PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND|
1202 PA_STREAM_START_UNMUTED|
1203 PA_STREAM_FAIL_ON_SUSPEND|
1204 PA_STREAM_RELATIVE_VOLUME|
1205 PA_STREAM_PASSTHROUGH)), PA_ERR_INVALID);
1206
1207
1208 PA_CHECK_VALIDITY(s->context, s->context->version >= 12 || !(flags & PA_STREAM_VARIABLE_RATE), PA_ERR_NOTSUPPORTED);
1209 PA_CHECK_VALIDITY(s->context, s->context->version >= 13 || !(flags & PA_STREAM_PEAK_DETECT), PA_ERR_NOTSUPPORTED);
1210 PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1211 /* Although some of the other flags are not supported on older
1212 * version, we don't check for them here, because it doesn't hurt
1213 * when they are passed but actually not supported. This makes
1214 * client development easier */
1215
1216 PA_CHECK_VALIDITY(s->context, direction == PA_STREAM_RECORD || !(flags & (PA_STREAM_PEAK_DETECT)), PA_ERR_INVALID);
1217 PA_CHECK_VALIDITY(s->context, !volume || s->n_formats || (pa_sample_spec_valid(&s->sample_spec) && volume->channels == s->sample_spec.channels), PA_ERR_INVALID);
1218 PA_CHECK_VALIDITY(s->context, !sync_stream || (direction == PA_STREAM_PLAYBACK && sync_stream->direction == PA_STREAM_PLAYBACK), PA_ERR_INVALID);
1219 PA_CHECK_VALIDITY(s->context, (flags & (PA_STREAM_ADJUST_LATENCY|PA_STREAM_EARLY_REQUESTS)) != (PA_STREAM_ADJUST_LATENCY|PA_STREAM_EARLY_REQUESTS), PA_ERR_INVALID);
1220
1221 pa_stream_ref(s);
1222
1223 s->direction = direction;
1224
1225 if (sync_stream)
1226 s->syncid = sync_stream->syncid;
1227
1228 if (attr)
1229 s->buffer_attr = *attr;
1230 patch_buffer_attr(s, &s->buffer_attr, &flags);
1231
1232 s->flags = flags;
1233 s->corked = !!(flags & PA_STREAM_START_CORKED);
1234
1235 if (flags & PA_STREAM_INTERPOLATE_TIMING) {
1236 pa_usec_t x;
1237
1238 x = pa_rtclock_now();
1239
1240 pa_assert(!s->smoother);
1241 s->smoother = pa_smoother_new(
1242 SMOOTHER_ADJUST_TIME,
1243 SMOOTHER_HISTORY_TIME,
1244 !(flags & PA_STREAM_NOT_MONOTONIC),
1245 TRUE,
1246 SMOOTHER_MIN_HISTORY,
1247 x,
1248 TRUE);
1249 }
1250
1251 if (!dev)
1252 dev = s->direction == PA_STREAM_PLAYBACK ? s->context->conf->default_sink : s->context->conf->default_source;
1253
1254 t = pa_tagstruct_command(
1255 s->context,
1256 (uint32_t) (s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CREATE_PLAYBACK_STREAM : PA_COMMAND_CREATE_RECORD_STREAM),
1257 &tag);
1258
1259 if (s->context->version < 13)
1260 pa_tagstruct_puts(t, pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME));
1261
1262 pa_tagstruct_put(
1263 t,
1264 PA_TAG_SAMPLE_SPEC, &s->sample_spec,
1265 PA_TAG_CHANNEL_MAP, &s->channel_map,
1266 PA_TAG_U32, PA_INVALID_INDEX,
1267 PA_TAG_STRING, dev,
1268 PA_TAG_U32, s->buffer_attr.maxlength,
1269 PA_TAG_BOOLEAN, s->corked,
1270 PA_TAG_INVALID);
1271
1272 if (!volume) {
1273 if (pa_sample_spec_valid(&s->sample_spec))
1274 volume = pa_cvolume_reset(&cv, s->sample_spec.channels);
1275 else {
1276 /* This is not really relevant, since no volume was set, and
1277 * the real number of channels is embedded in the format_info
1278 * structure */
1279 volume = pa_cvolume_reset(&cv, PA_CHANNELS_MAX);
1280 }
1281 }
1282
1283 if (s->direction == PA_STREAM_PLAYBACK) {
1284 pa_tagstruct_put(
1285 t,
1286 PA_TAG_U32, s->buffer_attr.tlength,
1287 PA_TAG_U32, s->buffer_attr.prebuf,
1288 PA_TAG_U32, s->buffer_attr.minreq,
1289 PA_TAG_U32, s->syncid,
1290 PA_TAG_INVALID);
1291
1292 pa_tagstruct_put_cvolume(t, volume);
1293 } else
1294 pa_tagstruct_putu32(t, s->buffer_attr.fragsize);
1295
1296 if (s->context->version >= 12) {
1297 pa_tagstruct_put(
1298 t,
1299 PA_TAG_BOOLEAN, flags & PA_STREAM_NO_REMAP_CHANNELS,
1300 PA_TAG_BOOLEAN, flags & PA_STREAM_NO_REMIX_CHANNELS,
1301 PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_FORMAT,
1302 PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_RATE,
1303 PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_CHANNELS,
1304 PA_TAG_BOOLEAN, flags & PA_STREAM_DONT_MOVE,
1305 PA_TAG_BOOLEAN, flags & PA_STREAM_VARIABLE_RATE,
1306 PA_TAG_INVALID);
1307 }
1308
1309 if (s->context->version >= 13) {
1310
1311 if (s->direction == PA_STREAM_PLAYBACK)
1312 pa_tagstruct_put_boolean(t, flags & PA_STREAM_START_MUTED);
1313 else
1314 pa_tagstruct_put_boolean(t, flags & PA_STREAM_PEAK_DETECT);
1315
1316 pa_tagstruct_put(
1317 t,
1318 PA_TAG_BOOLEAN, flags & PA_STREAM_ADJUST_LATENCY,
1319 PA_TAG_PROPLIST, s->proplist,
1320 PA_TAG_INVALID);
1321
1322 if (s->direction == PA_STREAM_RECORD)
1323 pa_tagstruct_putu32(t, s->direct_on_input);
1324 }
1325
1326 if (s->context->version >= 14) {
1327
1328 if (s->direction == PA_STREAM_PLAYBACK)
1329 pa_tagstruct_put_boolean(t, volume_set);
1330
1331 pa_tagstruct_put_boolean(t, flags & PA_STREAM_EARLY_REQUESTS);
1332 }
1333
1334 if (s->context->version >= 15) {
1335
1336 if (s->direction == PA_STREAM_PLAYBACK)
1337 pa_tagstruct_put_boolean(t, flags & (PA_STREAM_START_MUTED|PA_STREAM_START_UNMUTED));
1338
1339 pa_tagstruct_put_boolean(t, flags & PA_STREAM_DONT_INHIBIT_AUTO_SUSPEND);
1340 pa_tagstruct_put_boolean(t, flags & PA_STREAM_FAIL_ON_SUSPEND);
1341 }
1342
1343 if (s->context->version >= 17 && s->direction == PA_STREAM_PLAYBACK)
1344 pa_tagstruct_put_boolean(t, flags & PA_STREAM_RELATIVE_VOLUME);
1345
1346 if (s->context->version >= 18 && s->direction == PA_STREAM_PLAYBACK)
1347 pa_tagstruct_put_boolean(t, flags & (PA_STREAM_PASSTHROUGH));
1348
1349 if ((s->context->version >= 21 && s->direction == PA_STREAM_PLAYBACK)
1350 || s->context->version >= 22) {
1351
1352 pa_tagstruct_putu8(t, s->n_formats);
1353 for (i = 0; i < s->n_formats; i++)
1354 pa_tagstruct_put_format_info(t, s->req_formats[i]);
1355 }
1356
1357 if (s->context->version >= 22 && s->direction == PA_STREAM_RECORD) {
1358 pa_tagstruct_put_cvolume(t, volume);
1359 pa_tagstruct_put_boolean(t, flags & PA_STREAM_START_MUTED);
1360 pa_tagstruct_put_boolean(t, volume_set);
1361 pa_tagstruct_put_boolean(t, flags & (PA_STREAM_START_MUTED|PA_STREAM_START_UNMUTED));
1362 pa_tagstruct_put_boolean(t, flags & PA_STREAM_RELATIVE_VOLUME);
1363 pa_tagstruct_put_boolean(t, flags & (PA_STREAM_PASSTHROUGH));
1364 }
1365
1366 pa_pstream_send_tagstruct(s->context->pstream, t);
1367 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL);
1368
1369 pa_stream_set_state(s, PA_STREAM_CREATING);
1370
1371 pa_stream_unref(s);
1372 return 0;
1373 }
1374
1375 int pa_stream_connect_playback(
1376 pa_stream *s,
1377 const char *dev,
1378 const pa_buffer_attr *attr,
1379 pa_stream_flags_t flags,
1380 const pa_cvolume *volume,
1381 pa_stream *sync_stream) {
1382
1383 pa_assert(s);
1384 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1385
1386 return create_stream(PA_STREAM_PLAYBACK, s, dev, attr, flags, volume, sync_stream);
1387 }
1388
1389 int pa_stream_connect_record(
1390 pa_stream *s,
1391 const char *dev,
1392 const pa_buffer_attr *attr,
1393 pa_stream_flags_t flags) {
1394
1395 pa_assert(s);
1396 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1397
1398 return create_stream(PA_STREAM_RECORD, s, dev, attr, flags, NULL, NULL);
1399 }
1400
1401 int pa_stream_begin_write(
1402 pa_stream *s,
1403 void **data,
1404 size_t *nbytes) {
1405
1406 pa_assert(s);
1407 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1408
1409 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1410 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
1411 PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_PLAYBACK || s->direction == PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
1412 PA_CHECK_VALIDITY(s->context, data, PA_ERR_INVALID);
1413 PA_CHECK_VALIDITY(s->context, nbytes && *nbytes != 0, PA_ERR_INVALID);
1414
1415 if (*nbytes != (size_t) -1) {
1416 size_t m, fs;
1417
1418 m = pa_mempool_block_size_max(s->context->mempool);
1419 fs = pa_frame_size(&s->sample_spec);
1420
1421 m = (m / fs) * fs;
1422 if (*nbytes > m)
1423 *nbytes = m;
1424 }
1425
1426 if (!s->write_memblock) {
1427 s->write_memblock = pa_memblock_new(s->context->mempool, *nbytes);
1428 s->write_data = pa_memblock_acquire(s->write_memblock);
1429 }
1430
1431 *data = s->write_data;
1432 *nbytes = pa_memblock_get_length(s->write_memblock);
1433
1434 return 0;
1435 }
1436
1437 int pa_stream_cancel_write(
1438 pa_stream *s) {
1439
1440 pa_assert(s);
1441 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1442
1443 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1444 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
1445 PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_PLAYBACK || s->direction == PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
1446 PA_CHECK_VALIDITY(s->context, s->write_memblock, PA_ERR_BADSTATE);
1447
1448 pa_assert(s->write_data);
1449
1450 pa_memblock_release(s->write_memblock);
1451 pa_memblock_unref(s->write_memblock);
1452 s->write_memblock = NULL;
1453 s->write_data = NULL;
1454
1455 return 0;
1456 }
1457
1458 int pa_stream_write(
1459 pa_stream *s,
1460 const void *data,
1461 size_t length,
1462 pa_free_cb_t free_cb,
1463 int64_t offset,
1464 pa_seek_mode_t seek) {
1465
1466 pa_assert(s);
1467 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1468 pa_assert(data);
1469
1470 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1471 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
1472 PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_PLAYBACK || s->direction == PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
1473 PA_CHECK_VALIDITY(s->context, seek <= PA_SEEK_RELATIVE_END, PA_ERR_INVALID);
1474 PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_PLAYBACK || (seek == PA_SEEK_RELATIVE && offset == 0), PA_ERR_INVALID);
1475 PA_CHECK_VALIDITY(s->context,
1476 !s->write_memblock ||
1477 ((data >= s->write_data) &&
1478 ((const char*) data + length <= (const char*) s->write_data + pa_memblock_get_length(s->write_memblock))),
1479 PA_ERR_INVALID);
1480 PA_CHECK_VALIDITY(s->context, !free_cb || !s->write_memblock, PA_ERR_INVALID);
1481
1482 if (s->write_memblock) {
1483 pa_memchunk chunk;
1484
1485 /* pa_stream_write_begin() was called before */
1486
1487 pa_memblock_release(s->write_memblock);
1488
1489 chunk.memblock = s->write_memblock;
1490 chunk.index = (const char *) data - (const char *) s->write_data;
1491 chunk.length = length;
1492
1493 s->write_memblock = NULL;
1494 s->write_data = NULL;
1495
1496 pa_pstream_send_memblock(s->context->pstream, s->channel, offset, seek, &chunk);
1497 pa_memblock_unref(chunk.memblock);
1498
1499 } else {
1500 pa_seek_mode_t t_seek = seek;
1501 int64_t t_offset = offset;
1502 size_t t_length = length;
1503 const void *t_data = data;
1504
1505 /* pa_stream_write_begin() was not called before */
1506
1507 while (t_length > 0) {
1508 pa_memchunk chunk;
1509
1510 chunk.index = 0;
1511
1512 if (free_cb && !pa_pstream_get_shm(s->context->pstream)) {
1513 chunk.memblock = pa_memblock_new_user(s->context->mempool, (void*) t_data, t_length, free_cb, 1);
1514 chunk.length = t_length;
1515 } else {
1516 void *d;
1517
1518 chunk.length = PA_MIN(t_length, pa_mempool_block_size_max(s->context->mempool));
1519 chunk.memblock = pa_memblock_new(s->context->mempool, chunk.length);
1520
1521 d = pa_memblock_acquire(chunk.memblock);
1522 memcpy(d, t_data, chunk.length);
1523 pa_memblock_release(chunk.memblock);
1524 }
1525
1526 pa_pstream_send_memblock(s->context->pstream, s->channel, t_offset, t_seek, &chunk);
1527
1528 t_offset = 0;
1529 t_seek = PA_SEEK_RELATIVE;
1530
1531 t_data = (const uint8_t*) t_data + chunk.length;
1532 t_length -= chunk.length;
1533
1534 pa_memblock_unref(chunk.memblock);
1535 }
1536
1537 if (free_cb && pa_pstream_get_shm(s->context->pstream))
1538 free_cb((void*) data);
1539 }
1540
1541 /* This is obviously wrong since we ignore the seeking index . But
1542 * that's OK, the server side applies the same error */
1543 s->requested_bytes -= (seek == PA_SEEK_RELATIVE ? offset : 0) + (int64_t) length;
1544
1545 /* pa_log("wrote %lli, now at %lli", (long long) length, (long long) s->requested_bytes); */
1546
1547 if (s->direction == PA_STREAM_PLAYBACK) {
1548
1549 /* Update latency request correction */
1550 if (s->write_index_corrections[s->current_write_index_correction].valid) {
1551
1552 if (seek == PA_SEEK_ABSOLUTE) {
1553 s->write_index_corrections[s->current_write_index_correction].corrupt = FALSE;
1554 s->write_index_corrections[s->current_write_index_correction].absolute = TRUE;
1555 s->write_index_corrections[s->current_write_index_correction].value = offset + (int64_t) length;
1556 } else if (seek == PA_SEEK_RELATIVE) {
1557 if (!s->write_index_corrections[s->current_write_index_correction].corrupt)
1558 s->write_index_corrections[s->current_write_index_correction].value += offset + (int64_t) length;
1559 } else
1560 s->write_index_corrections[s->current_write_index_correction].corrupt = TRUE;
1561 }
1562
1563 /* Update the write index in the already available latency data */
1564 if (s->timing_info_valid) {
1565
1566 if (seek == PA_SEEK_ABSOLUTE) {
1567 s->timing_info.write_index_corrupt = FALSE;
1568 s->timing_info.write_index = offset + (int64_t) length;
1569 } else if (seek == PA_SEEK_RELATIVE) {
1570 if (!s->timing_info.write_index_corrupt)
1571 s->timing_info.write_index += offset + (int64_t) length;
1572 } else
1573 s->timing_info.write_index_corrupt = TRUE;
1574 }
1575
1576 if (!s->timing_info_valid || s->timing_info.write_index_corrupt)
1577 request_auto_timing_update(s, TRUE);
1578 }
1579
1580 return 0;
1581 }
1582
1583 int pa_stream_peek(pa_stream *s, const void **data, size_t *length) {
1584 pa_assert(s);
1585 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1586 pa_assert(data);
1587 pa_assert(length);
1588
1589 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1590 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
1591 PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_RECORD, PA_ERR_BADSTATE);
1592
1593 if (!s->peek_memchunk.memblock) {
1594
1595 if (pa_memblockq_peek(s->record_memblockq, &s->peek_memchunk) < 0) {
1596 *data = NULL;
1597 *length = 0;
1598 return 0;
1599 }
1600
1601 s->peek_data = pa_memblock_acquire(s->peek_memchunk.memblock);
1602 }
1603
1604 pa_assert(s->peek_data);
1605 *data = (uint8_t*) s->peek_data + s->peek_memchunk.index;
1606 *length = s->peek_memchunk.length;
1607 return 0;
1608 }
1609
1610 int pa_stream_drop(pa_stream *s) {
1611 pa_assert(s);
1612 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1613
1614 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1615 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
1616 PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_RECORD, PA_ERR_BADSTATE);
1617 PA_CHECK_VALIDITY(s->context, s->peek_memchunk.memblock, PA_ERR_BADSTATE);
1618
1619 pa_memblockq_drop(s->record_memblockq, s->peek_memchunk.length);
1620
1621 /* Fix the simulated local read index */
1622 if (s->timing_info_valid && !s->timing_info.read_index_corrupt)
1623 s->timing_info.read_index += (int64_t) s->peek_memchunk.length;
1624
1625 pa_assert(s->peek_data);
1626 pa_memblock_release(s->peek_memchunk.memblock);
1627 pa_memblock_unref(s->peek_memchunk.memblock);
1628 pa_memchunk_reset(&s->peek_memchunk);
1629
1630 return 0;
1631 }
1632
1633 size_t pa_stream_writable_size(pa_stream *s) {
1634 pa_assert(s);
1635 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1636
1637 PA_CHECK_VALIDITY_RETURN_ANY(s->context, !pa_detect_fork(), PA_ERR_FORKED, (size_t) -1);
1638 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, (size_t) -1);
1639 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direction != PA_STREAM_RECORD, PA_ERR_BADSTATE, (size_t) -1);
1640
1641 return s->requested_bytes > 0 ? (size_t) s->requested_bytes : 0;
1642 }
1643
1644 size_t pa_stream_readable_size(pa_stream *s) {
1645 pa_assert(s);
1646 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1647
1648 PA_CHECK_VALIDITY_RETURN_ANY(s->context, !pa_detect_fork(), PA_ERR_FORKED, (size_t) -1);
1649 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, (size_t) -1);
1650 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direction == PA_STREAM_RECORD, PA_ERR_BADSTATE, (size_t) -1);
1651
1652 return pa_memblockq_get_length(s->record_memblockq);
1653 }
1654
1655 pa_operation * pa_stream_drain(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) {
1656 pa_operation *o;
1657 pa_tagstruct *t;
1658 uint32_t tag;
1659
1660 pa_assert(s);
1661 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1662
1663 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1664 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
1665 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction == PA_STREAM_PLAYBACK, PA_ERR_BADSTATE);
1666
1667 /* Ask for a timing update before we cork/uncork to get the best
1668 * accuracy for the transport latency suitable for the
1669 * check_smoother_status() call in the started callback */
1670 request_auto_timing_update(s, TRUE);
1671
1672 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
1673
1674 t = pa_tagstruct_command(s->context, PA_COMMAND_DRAIN_PLAYBACK_STREAM, &tag);
1675 pa_tagstruct_putu32(t, s->channel);
1676 pa_pstream_send_tagstruct(s->context->pstream, t);
1677 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1678
1679 /* This might cause the read index to continue again, hence
1680 * let's request a timing update */
1681 request_auto_timing_update(s, TRUE);
1682
1683 return o;
1684 }
1685
1686 static pa_usec_t calc_time(pa_stream *s, pa_bool_t ignore_transport) {
1687 pa_usec_t usec;
1688
1689 pa_assert(s);
1690 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1691 pa_assert(s->state == PA_STREAM_READY);
1692 pa_assert(s->direction != PA_STREAM_UPLOAD);
1693 pa_assert(s->timing_info_valid);
1694 pa_assert(s->direction != PA_STREAM_PLAYBACK || !s->timing_info.read_index_corrupt);
1695 pa_assert(s->direction != PA_STREAM_RECORD || !s->timing_info.write_index_corrupt);
1696
1697 if (s->direction == PA_STREAM_PLAYBACK) {
1698 /* The last byte that was written into the output device
1699 * had this time value associated */
1700 usec = pa_bytes_to_usec(s->timing_info.read_index < 0 ? 0 : (uint64_t) s->timing_info.read_index, &s->sample_spec);
1701
1702 if (!s->corked && !s->suspended) {
1703
1704 if (!ignore_transport)
1705 /* Because the latency info took a little time to come
1706 * to us, we assume that the real output time is actually
1707 * a little ahead */
1708 usec += s->timing_info.transport_usec;
1709
1710 /* However, the output device usually maintains a buffer
1711 too, hence the real sample currently played is a little
1712 back */
1713 if (s->timing_info.sink_usec >= usec)
1714 usec = 0;
1715 else
1716 usec -= s->timing_info.sink_usec;
1717 }
1718
1719 } else {
1720 pa_assert(s->direction == PA_STREAM_RECORD);
1721
1722 /* The last byte written into the server side queue had
1723 * this time value associated */
1724 usec = pa_bytes_to_usec(s->timing_info.write_index < 0 ? 0 : (uint64_t) s->timing_info.write_index, &s->sample_spec);
1725
1726 if (!s->corked && !s->suspended) {
1727
1728 if (!ignore_transport)
1729 /* Add transport latency */
1730 usec += s->timing_info.transport_usec;
1731
1732 /* Add latency of data in device buffer */
1733 usec += s->timing_info.source_usec;
1734
1735 /* If this is a monitor source, we need to correct the
1736 * time by the playback device buffer */
1737 if (s->timing_info.sink_usec >= usec)
1738 usec = 0;
1739 else
1740 usec -= s->timing_info.sink_usec;
1741 }
1742 }
1743
1744 return usec;
1745 }
1746
1747 static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1748 pa_operation *o = userdata;
1749 struct timeval local, remote, now;
1750 pa_timing_info *i;
1751 pa_bool_t playing = FALSE;
1752 uint64_t underrun_for = 0, playing_for = 0;
1753
1754 pa_assert(pd);
1755 pa_assert(o);
1756 pa_assert(PA_REFCNT_VALUE(o) >= 1);
1757
1758 if (!o->context || !o->stream)
1759 goto finish;
1760
1761 i = &o->stream->timing_info;
1762
1763 o->stream->timing_info_valid = FALSE;
1764 i->write_index_corrupt = TRUE;
1765 i->read_index_corrupt = TRUE;
1766
1767 if (command != PA_COMMAND_REPLY) {
1768 if (pa_context_handle_error(o->context, command, t, FALSE) < 0)
1769 goto finish;
1770
1771 } else {
1772
1773 if (pa_tagstruct_get_usec(t, &i->sink_usec) < 0 ||
1774 pa_tagstruct_get_usec(t, &i->source_usec) < 0 ||
1775 pa_tagstruct_get_boolean(t, &playing) < 0 ||
1776 pa_tagstruct_get_timeval(t, &local) < 0 ||
1777 pa_tagstruct_get_timeval(t, &remote) < 0 ||
1778 pa_tagstruct_gets64(t, &i->write_index) < 0 ||
1779 pa_tagstruct_gets64(t, &i->read_index) < 0) {
1780
1781 pa_context_fail(o->context, PA_ERR_PROTOCOL);
1782 goto finish;
1783 }
1784
1785 if (o->context->version >= 13 &&
1786 o->stream->direction == PA_STREAM_PLAYBACK)
1787 if (pa_tagstruct_getu64(t, &underrun_for) < 0 ||
1788 pa_tagstruct_getu64(t, &playing_for) < 0) {
1789
1790 pa_context_fail(o->context, PA_ERR_PROTOCOL);
1791 goto finish;
1792 }
1793
1794
1795 if (!pa_tagstruct_eof(t)) {
1796 pa_context_fail(o->context, PA_ERR_PROTOCOL);
1797 goto finish;
1798 }
1799 o->stream->timing_info_valid = TRUE;
1800 i->write_index_corrupt = FALSE;
1801 i->read_index_corrupt = FALSE;
1802
1803 i->playing = (int) playing;
1804 i->since_underrun = (int64_t) (playing ? playing_for : underrun_for);
1805
1806 pa_gettimeofday(&now);
1807
1808 /* Calculate timestamps */
1809 if (pa_timeval_cmp(&local, &remote) <= 0 && pa_timeval_cmp(&remote, &now) <= 0) {
1810 /* local and remote seem to have synchronized clocks */
1811
1812 if (o->stream->direction == PA_STREAM_PLAYBACK)
1813 i->transport_usec = pa_timeval_diff(&remote, &local);
1814 else
1815 i->transport_usec = pa_timeval_diff(&now, &remote);
1816
1817 i->synchronized_clocks = TRUE;
1818 i->timestamp = remote;
1819 } else {
1820 /* clocks are not synchronized, let's estimate latency then */
1821 i->transport_usec = pa_timeval_diff(&now, &local)/2;
1822 i->synchronized_clocks = FALSE;
1823 i->timestamp = local;
1824 pa_timeval_add(&i->timestamp, i->transport_usec);
1825 }
1826
1827 /* Invalidate read and write indexes if necessary */
1828 if (tag < o->stream->read_index_not_before)
1829 i->read_index_corrupt = TRUE;
1830
1831 if (tag < o->stream->write_index_not_before)
1832 i->write_index_corrupt = TRUE;
1833
1834 if (o->stream->direction == PA_STREAM_PLAYBACK) {
1835 /* Write index correction */
1836
1837 int n, j;
1838 uint32_t ctag = tag;
1839
1840 /* Go through the saved correction values and add up the
1841 * total correction.*/
1842 for (n = 0, j = o->stream->current_write_index_correction+1;
1843 n < PA_MAX_WRITE_INDEX_CORRECTIONS;
1844 n++, j = (j + 1) % PA_MAX_WRITE_INDEX_CORRECTIONS) {
1845
1846 /* Step over invalid data or out-of-date data */
1847 if (!o->stream->write_index_corrections[j].valid ||
1848 o->stream->write_index_corrections[j].tag < ctag)
1849 continue;
1850
1851 /* Make sure that everything is in order */
1852 ctag = o->stream->write_index_corrections[j].tag+1;
1853
1854 /* Now fix the write index */
1855 if (o->stream->write_index_corrections[j].corrupt) {
1856 /* A corrupting seek was made */
1857 i->write_index_corrupt = TRUE;
1858 } else if (o->stream->write_index_corrections[j].absolute) {
1859 /* An absolute seek was made */
1860 i->write_index = o->stream->write_index_corrections[j].value;
1861 i->write_index_corrupt = FALSE;
1862 } else if (!i->write_index_corrupt) {
1863 /* A relative seek was made */
1864 i->write_index += o->stream->write_index_corrections[j].value;
1865 }
1866 }
1867
1868 /* Clear old correction entries */
1869 for (n = 0; n < PA_MAX_WRITE_INDEX_CORRECTIONS; n++) {
1870 if (!o->stream->write_index_corrections[n].valid)
1871 continue;
1872
1873 if (o->stream->write_index_corrections[n].tag <= tag)
1874 o->stream->write_index_corrections[n].valid = FALSE;
1875 }
1876 }
1877
1878 if (o->stream->direction == PA_STREAM_RECORD) {
1879 /* Read index correction */
1880
1881 if (!i->read_index_corrupt)
1882 i->read_index -= (int64_t) pa_memblockq_get_length(o->stream->record_memblockq);
1883 }
1884
1885 /* Update smoother if we're not corked */
1886 if (o->stream->smoother && !o->stream->corked) {
1887 pa_usec_t u, x;
1888
1889 u = x = pa_rtclock_now() - i->transport_usec;
1890
1891 if (o->stream->direction == PA_STREAM_PLAYBACK && o->context->version >= 13) {
1892 pa_usec_t su;
1893
1894 /* If we weren't playing then it will take some time
1895 * until the audio will actually come out through the
1896 * speakers. Since we follow that timing here, we need
1897 * to try to fix this up */
1898
1899 su = pa_bytes_to_usec((uint64_t) i->since_underrun, &o->stream->sample_spec);
1900
1901 if (su < i->sink_usec)
1902 x += i->sink_usec - su;
1903 }
1904
1905 if (!i->playing)
1906 pa_smoother_pause(o->stream->smoother, x);
1907
1908 /* Update the smoother */
1909 if ((o->stream->direction == PA_STREAM_PLAYBACK && !i->read_index_corrupt) ||
1910 (o->stream->direction == PA_STREAM_RECORD && !i->write_index_corrupt))
1911 pa_smoother_put(o->stream->smoother, u, calc_time(o->stream, TRUE));
1912
1913 if (i->playing)
1914 pa_smoother_resume(o->stream->smoother, x, TRUE);
1915 }
1916 }
1917
1918 o->stream->auto_timing_update_requested = FALSE;
1919
1920 if (o->stream->latency_update_callback)
1921 o->stream->latency_update_callback(o->stream, o->stream->latency_update_userdata);
1922
1923 if (o->callback && o->stream && o->stream->state == PA_STREAM_READY) {
1924 pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback;
1925 cb(o->stream, o->stream->timing_info_valid, o->userdata);
1926 }
1927
1928 finish:
1929
1930 pa_operation_done(o);
1931 pa_operation_unref(o);
1932 }
1933
1934 pa_operation* pa_stream_update_timing_info(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) {
1935 uint32_t tag;
1936 pa_operation *o;
1937 pa_tagstruct *t;
1938 struct timeval now;
1939 int cidx = 0;
1940
1941 pa_assert(s);
1942 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1943
1944 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
1945 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
1946 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
1947
1948 if (s->direction == PA_STREAM_PLAYBACK) {
1949 /* Find a place to store the write_index correction data for this entry */
1950 cidx = (s->current_write_index_correction + 1) % PA_MAX_WRITE_INDEX_CORRECTIONS;
1951
1952 /* Check if we could allocate a correction slot. If not, there are too many outstanding queries */
1953 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !s->write_index_corrections[cidx].valid, PA_ERR_INTERNAL);
1954 }
1955 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
1956
1957 t = pa_tagstruct_command(
1958 s->context,
1959 (uint32_t) (s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_GET_PLAYBACK_LATENCY : PA_COMMAND_GET_RECORD_LATENCY),
1960 &tag);
1961 pa_tagstruct_putu32(t, s->channel);
1962 pa_tagstruct_put_timeval(t, pa_gettimeofday(&now));
1963
1964 pa_pstream_send_tagstruct(s->context->pstream, t);
1965 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_get_timing_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1966
1967 if (s->direction == PA_STREAM_PLAYBACK) {
1968 /* Fill in initial correction data */
1969
1970 s->current_write_index_correction = cidx;
1971
1972 s->write_index_corrections[cidx].valid = TRUE;
1973 s->write_index_corrections[cidx].absolute = FALSE;
1974 s->write_index_corrections[cidx].corrupt = FALSE;
1975 s->write_index_corrections[cidx].tag = tag;
1976 s->write_index_corrections[cidx].value = 0;
1977 }
1978
1979 return o;
1980 }
1981
1982 void pa_stream_disconnect_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
1983 pa_stream *s = userdata;
1984
1985 pa_assert(pd);
1986 pa_assert(s);
1987 pa_assert(PA_REFCNT_VALUE(s) >= 1);
1988
1989 pa_stream_ref(s);
1990
1991 if (command != PA_COMMAND_REPLY) {
1992 if (pa_context_handle_error(s->context, command, t, FALSE) < 0)
1993 goto finish;
1994
1995 pa_stream_set_state(s, PA_STREAM_FAILED);
1996 goto finish;
1997 } else if (!pa_tagstruct_eof(t)) {
1998 pa_context_fail(s->context, PA_ERR_PROTOCOL);
1999 goto finish;
2000 }
2001
2002 pa_stream_set_state(s, PA_STREAM_TERMINATED);
2003
2004 finish:
2005 pa_stream_unref(s);
2006 }
2007
2008 int pa_stream_disconnect(pa_stream *s) {
2009 pa_tagstruct *t;
2010 uint32_t tag;
2011
2012 pa_assert(s);
2013 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2014
2015 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2016 PA_CHECK_VALIDITY(s->context, s->channel_valid, PA_ERR_BADSTATE);
2017 PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
2018
2019 pa_stream_ref(s);
2020
2021 t = pa_tagstruct_command(
2022 s->context,
2023 (uint32_t) (s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_DELETE_PLAYBACK_STREAM :
2024 (s->direction == PA_STREAM_RECORD ? PA_COMMAND_DELETE_RECORD_STREAM : PA_COMMAND_DELETE_UPLOAD_STREAM)),
2025 &tag);
2026 pa_tagstruct_putu32(t, s->channel);
2027 pa_pstream_send_tagstruct(s->context->pstream, t);
2028 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_disconnect_callback, s, NULL);
2029
2030 pa_stream_unref(s);
2031 return 0;
2032 }
2033
2034 void pa_stream_set_read_callback(pa_stream *s, pa_stream_request_cb_t cb, void *userdata) {
2035 pa_assert(s);
2036 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2037
2038 if (pa_detect_fork())
2039 return;
2040
2041 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2042 return;
2043
2044 s->read_callback = cb;
2045 s->read_userdata = userdata;
2046 }
2047
2048 void pa_stream_set_write_callback(pa_stream *s, pa_stream_request_cb_t cb, void *userdata) {
2049 pa_assert(s);
2050 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2051
2052 if (pa_detect_fork())
2053 return;
2054
2055 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2056 return;
2057
2058 s->write_callback = cb;
2059 s->write_userdata = userdata;
2060 }
2061
2062 void pa_stream_set_state_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2063 pa_assert(s);
2064 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2065
2066 if (pa_detect_fork())
2067 return;
2068
2069 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2070 return;
2071
2072 s->state_callback = cb;
2073 s->state_userdata = userdata;
2074 }
2075
2076 void pa_stream_set_overflow_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2077 pa_assert(s);
2078 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2079
2080 if (pa_detect_fork())
2081 return;
2082
2083 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2084 return;
2085
2086 s->overflow_callback = cb;
2087 s->overflow_userdata = userdata;
2088 }
2089
2090 void pa_stream_set_underflow_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2091 pa_assert(s);
2092 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2093
2094 if (pa_detect_fork())
2095 return;
2096
2097 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2098 return;
2099
2100 s->underflow_callback = cb;
2101 s->underflow_userdata = userdata;
2102 }
2103
2104 void pa_stream_set_latency_update_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2105 pa_assert(s);
2106 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2107
2108 if (pa_detect_fork())
2109 return;
2110
2111 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2112 return;
2113
2114 s->latency_update_callback = cb;
2115 s->latency_update_userdata = userdata;
2116 }
2117
2118 void pa_stream_set_moved_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2119 pa_assert(s);
2120 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2121
2122 if (pa_detect_fork())
2123 return;
2124
2125 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2126 return;
2127
2128 s->moved_callback = cb;
2129 s->moved_userdata = userdata;
2130 }
2131
2132 void pa_stream_set_suspended_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2133 pa_assert(s);
2134 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2135
2136 if (pa_detect_fork())
2137 return;
2138
2139 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2140 return;
2141
2142 s->suspended_callback = cb;
2143 s->suspended_userdata = userdata;
2144 }
2145
2146 void pa_stream_set_started_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2147 pa_assert(s);
2148 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2149
2150 if (pa_detect_fork())
2151 return;
2152
2153 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2154 return;
2155
2156 s->started_callback = cb;
2157 s->started_userdata = userdata;
2158 }
2159
2160 void pa_stream_set_event_callback(pa_stream *s, pa_stream_event_cb_t cb, void *userdata) {
2161 pa_assert(s);
2162 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2163
2164 if (pa_detect_fork())
2165 return;
2166
2167 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2168 return;
2169
2170 s->event_callback = cb;
2171 s->event_userdata = userdata;
2172 }
2173
2174 void pa_stream_set_buffer_attr_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
2175 pa_assert(s);
2176 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2177
2178 if (pa_detect_fork())
2179 return;
2180
2181 if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED)
2182 return;
2183
2184 s->buffer_attr_callback = cb;
2185 s->buffer_attr_userdata = userdata;
2186 }
2187
2188 void pa_stream_simple_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2189 pa_operation *o = userdata;
2190 int success = 1;
2191
2192 pa_assert(pd);
2193 pa_assert(o);
2194 pa_assert(PA_REFCNT_VALUE(o) >= 1);
2195
2196 if (!o->context)
2197 goto finish;
2198
2199 if (command != PA_COMMAND_REPLY) {
2200 if (pa_context_handle_error(o->context, command, t, FALSE) < 0)
2201 goto finish;
2202
2203 success = 0;
2204 } else if (!pa_tagstruct_eof(t)) {
2205 pa_context_fail(o->context, PA_ERR_PROTOCOL);
2206 goto finish;
2207 }
2208
2209 if (o->callback) {
2210 pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback;
2211 cb(o->stream, success, o->userdata);
2212 }
2213
2214 finish:
2215 pa_operation_done(o);
2216 pa_operation_unref(o);
2217 }
2218
2219 pa_operation* pa_stream_cork(pa_stream *s, int b, pa_stream_success_cb_t cb, void *userdata) {
2220 pa_operation *o;
2221 pa_tagstruct *t;
2222 uint32_t tag;
2223
2224 pa_assert(s);
2225 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2226
2227 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2228 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2229 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2230
2231 /* Ask for a timing update before we cork/uncork to get the best
2232 * accuracy for the transport latency suitable for the
2233 * check_smoother_status() call in the started callback */
2234 request_auto_timing_update(s, TRUE);
2235
2236 s->corked = b;
2237
2238 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
2239
2240 t = pa_tagstruct_command(
2241 s->context,
2242 (uint32_t) (s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CORK_PLAYBACK_STREAM : PA_COMMAND_CORK_RECORD_STREAM),
2243 &tag);
2244 pa_tagstruct_putu32(t, s->channel);
2245 pa_tagstruct_put_boolean(t, !!b);
2246 pa_pstream_send_tagstruct(s->context->pstream, t);
2247 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
2248
2249 check_smoother_status(s, FALSE, FALSE, FALSE);
2250
2251 /* This might cause the indexes to hang/start again, hence let's
2252 * request a timing update, after the cork/uncork, too */
2253 request_auto_timing_update(s, TRUE);
2254
2255 return o;
2256 }
2257
2258 static pa_operation* stream_send_simple_command(pa_stream *s, uint32_t command, pa_stream_success_cb_t cb, void *userdata) {
2259 pa_tagstruct *t;
2260 pa_operation *o;
2261 uint32_t tag;
2262
2263 pa_assert(s);
2264 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2265
2266 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2267 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2268
2269 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
2270
2271 t = pa_tagstruct_command(s->context, command, &tag);
2272 pa_tagstruct_putu32(t, s->channel);
2273 pa_pstream_send_tagstruct(s->context->pstream, t);
2274 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
2275
2276 return o;
2277 }
2278
2279 pa_operation* pa_stream_flush(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) {
2280 pa_operation *o;
2281
2282 pa_assert(s);
2283 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2284
2285 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2286 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2287 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2288
2289 /* Ask for a timing update *before* the flush, so that the
2290 * transport usec is as up to date as possible when we get the
2291 * underflow message and update the smoother status*/
2292 request_auto_timing_update(s, TRUE);
2293
2294 if (!(o = stream_send_simple_command(s, (uint32_t) (s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_FLUSH_PLAYBACK_STREAM : PA_COMMAND_FLUSH_RECORD_STREAM), cb, userdata)))
2295 return NULL;
2296
2297 if (s->direction == PA_STREAM_PLAYBACK) {
2298
2299 if (s->write_index_corrections[s->current_write_index_correction].valid)
2300 s->write_index_corrections[s->current_write_index_correction].corrupt = TRUE;
2301
2302 if (s->buffer_attr.prebuf > 0)
2303 check_smoother_status(s, FALSE, FALSE, TRUE);
2304
2305 /* This will change the write index, but leave the
2306 * read index untouched. */
2307 invalidate_indexes(s, FALSE, TRUE);
2308
2309 } else
2310 /* For record streams this has no influence on the write
2311 * index, but the read index might jump. */
2312 invalidate_indexes(s, TRUE, FALSE);
2313
2314 /* Note that we do not update requested_bytes here. This is
2315 * because we cannot really know how data actually was dropped
2316 * from the write index due to this. This 'error' will be applied
2317 * by both client and server and hence we should be fine. */
2318
2319 return o;
2320 }
2321
2322 pa_operation* pa_stream_prebuf(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) {
2323 pa_operation *o;
2324
2325 pa_assert(s);
2326 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2327
2328 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2329 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2330 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction == PA_STREAM_PLAYBACK, PA_ERR_BADSTATE);
2331 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->buffer_attr.prebuf > 0, PA_ERR_BADSTATE);
2332
2333 /* Ask for a timing update before we cork/uncork to get the best
2334 * accuracy for the transport latency suitable for the
2335 * check_smoother_status() call in the started callback */
2336 request_auto_timing_update(s, TRUE);
2337
2338 if (!(o = stream_send_simple_command(s, PA_COMMAND_PREBUF_PLAYBACK_STREAM, cb, userdata)))
2339 return NULL;
2340
2341 /* This might cause the read index to hang again, hence
2342 * let's request a timing update */
2343 request_auto_timing_update(s, TRUE);
2344
2345 return o;
2346 }
2347
2348 pa_operation* pa_stream_trigger(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) {
2349 pa_operation *o;
2350
2351 pa_assert(s);
2352 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2353
2354 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2355 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2356 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction == PA_STREAM_PLAYBACK, PA_ERR_BADSTATE);
2357 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->buffer_attr.prebuf > 0, PA_ERR_BADSTATE);
2358
2359 /* Ask for a timing update before we cork/uncork to get the best
2360 * accuracy for the transport latency suitable for the
2361 * check_smoother_status() call in the started callback */
2362 request_auto_timing_update(s, TRUE);
2363
2364 if (!(o = stream_send_simple_command(s, PA_COMMAND_TRIGGER_PLAYBACK_STREAM, cb, userdata)))
2365 return NULL;
2366
2367 /* This might cause the read index to start moving again, hence
2368 * let's request a timing update */
2369 request_auto_timing_update(s, TRUE);
2370
2371 return o;
2372 }
2373
2374 pa_operation* pa_stream_set_name(pa_stream *s, const char *name, pa_stream_success_cb_t cb, void *userdata) {
2375 pa_operation *o;
2376
2377 pa_assert(s);
2378 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2379 pa_assert(name);
2380
2381 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2382 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2383 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2384
2385 if (s->context->version >= 13) {
2386 pa_proplist *p = pa_proplist_new();
2387
2388 pa_proplist_sets(p, PA_PROP_MEDIA_NAME, name);
2389 o = pa_stream_proplist_update(s, PA_UPDATE_REPLACE, p, cb, userdata);
2390 pa_proplist_free(p);
2391 } else {
2392 pa_tagstruct *t;
2393 uint32_t tag;
2394
2395 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
2396 t = pa_tagstruct_command(
2397 s->context,
2398 (uint32_t) (s->direction == PA_STREAM_RECORD ? PA_COMMAND_SET_RECORD_STREAM_NAME : PA_COMMAND_SET_PLAYBACK_STREAM_NAME),
2399 &tag);
2400 pa_tagstruct_putu32(t, s->channel);
2401 pa_tagstruct_puts(t, name);
2402 pa_pstream_send_tagstruct(s->context->pstream, t);
2403 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
2404 }
2405
2406 return o;
2407 }
2408
2409 int pa_stream_get_time(pa_stream *s, pa_usec_t *r_usec) {
2410 pa_usec_t usec;
2411
2412 pa_assert(s);
2413 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2414
2415 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2416 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2417 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2418 PA_CHECK_VALIDITY(s->context, s->timing_info_valid, PA_ERR_NODATA);
2419 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_PLAYBACK || !s->timing_info.read_index_corrupt, PA_ERR_NODATA);
2420 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_RECORD || !s->timing_info.write_index_corrupt, PA_ERR_NODATA);
2421
2422 if (s->smoother)
2423 usec = pa_smoother_get(s->smoother, pa_rtclock_now());
2424 else
2425 usec = calc_time(s, FALSE);
2426
2427 /* Make sure the time runs monotonically */
2428 if (!(s->flags & PA_STREAM_NOT_MONOTONIC)) {
2429 if (usec < s->previous_time)
2430 usec = s->previous_time;
2431 else
2432 s->previous_time = usec;
2433 }
2434
2435 if (r_usec)
2436 *r_usec = usec;
2437
2438 return 0;
2439 }
2440
2441 static pa_usec_t time_counter_diff(pa_stream *s, pa_usec_t a, pa_usec_t b, int *negative) {
2442 pa_assert(s);
2443 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2444
2445 if (negative)
2446 *negative = 0;
2447
2448 if (a >= b)
2449 return a-b;
2450 else {
2451 if (negative && s->direction == PA_STREAM_RECORD) {
2452 *negative = 1;
2453 return b-a;
2454 } else
2455 return 0;
2456 }
2457 }
2458
2459 int pa_stream_get_latency(pa_stream *s, pa_usec_t *r_usec, int *negative) {
2460 pa_usec_t t, c;
2461 int r;
2462 int64_t cindex;
2463
2464 pa_assert(s);
2465 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2466 pa_assert(r_usec);
2467
2468 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2469 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2470 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2471 PA_CHECK_VALIDITY(s->context, s->timing_info_valid, PA_ERR_NODATA);
2472 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_PLAYBACK || !s->timing_info.write_index_corrupt, PA_ERR_NODATA);
2473 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_RECORD || !s->timing_info.read_index_corrupt, PA_ERR_NODATA);
2474
2475 if ((r = pa_stream_get_time(s, &t)) < 0)
2476 return r;
2477
2478 if (s->direction == PA_STREAM_PLAYBACK)
2479 cindex = s->timing_info.write_index;
2480 else
2481 cindex = s->timing_info.read_index;
2482
2483 if (cindex < 0)
2484 cindex = 0;
2485
2486 c = pa_bytes_to_usec((uint64_t) cindex, &s->sample_spec);
2487
2488 if (s->direction == PA_STREAM_PLAYBACK)
2489 *r_usec = time_counter_diff(s, c, t, negative);
2490 else
2491 *r_usec = time_counter_diff(s, t, c, negative);
2492
2493 return 0;
2494 }
2495
2496 const pa_timing_info* pa_stream_get_timing_info(pa_stream *s) {
2497 pa_assert(s);
2498 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2499
2500 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2501 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2502 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2503 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->timing_info_valid, PA_ERR_NODATA);
2504
2505 return &s->timing_info;
2506 }
2507
2508 const pa_sample_spec* pa_stream_get_sample_spec(pa_stream *s) {
2509 pa_assert(s);
2510 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2511
2512 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2513
2514 return &s->sample_spec;
2515 }
2516
2517 const pa_channel_map* pa_stream_get_channel_map(pa_stream *s) {
2518 pa_assert(s);
2519 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2520
2521 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2522
2523 return &s->channel_map;
2524 }
2525
2526 const pa_format_info* pa_stream_get_format_info(pa_stream *s) {
2527 pa_assert(s);
2528 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2529
2530 /* We don't have the format till routing is done */
2531 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2532 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2533
2534 return s->format;
2535 }
2536 const pa_buffer_attr* pa_stream_get_buffer_attr(pa_stream *s) {
2537 pa_assert(s);
2538 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2539
2540 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2541 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2542 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 9, PA_ERR_NOTSUPPORTED);
2543
2544 return &s->buffer_attr;
2545 }
2546
2547 static void stream_set_buffer_attr_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2548 pa_operation *o = userdata;
2549 int success = 1;
2550
2551 pa_assert(pd);
2552 pa_assert(o);
2553 pa_assert(PA_REFCNT_VALUE(o) >= 1);
2554
2555 if (!o->context)
2556 goto finish;
2557
2558 if (command != PA_COMMAND_REPLY) {
2559 if (pa_context_handle_error(o->context, command, t, FALSE) < 0)
2560 goto finish;
2561
2562 success = 0;
2563 } else {
2564 if (o->stream->direction == PA_STREAM_PLAYBACK) {
2565 if (pa_tagstruct_getu32(t, &o->stream->buffer_attr.maxlength) < 0 ||
2566 pa_tagstruct_getu32(t, &o->stream->buffer_attr.tlength) < 0 ||
2567 pa_tagstruct_getu32(t, &o->stream->buffer_attr.prebuf) < 0 ||
2568 pa_tagstruct_getu32(t, &o->stream->buffer_attr.minreq) < 0) {
2569 pa_context_fail(o->context, PA_ERR_PROTOCOL);
2570 goto finish;
2571 }
2572 } else if (o->stream->direction == PA_STREAM_RECORD) {
2573 if (pa_tagstruct_getu32(t, &o->stream->buffer_attr.maxlength) < 0 ||
2574 pa_tagstruct_getu32(t, &o->stream->buffer_attr.fragsize) < 0) {
2575 pa_context_fail(o->context, PA_ERR_PROTOCOL);
2576 goto finish;
2577 }
2578 }
2579
2580 if (o->stream->context->version >= 13) {
2581 pa_usec_t usec;
2582
2583 if (pa_tagstruct_get_usec(t, &usec) < 0) {
2584 pa_context_fail(o->context, PA_ERR_PROTOCOL);
2585 goto finish;
2586 }
2587
2588 if (o->stream->direction == PA_STREAM_RECORD)
2589 o->stream->timing_info.configured_source_usec = usec;
2590 else
2591 o->stream->timing_info.configured_sink_usec = usec;
2592 }
2593
2594 if (!pa_tagstruct_eof(t)) {
2595 pa_context_fail(o->context, PA_ERR_PROTOCOL);
2596 goto finish;
2597 }
2598 }
2599
2600 if (o->callback) {
2601 pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback;
2602 cb(o->stream, success, o->userdata);
2603 }
2604
2605 finish:
2606 pa_operation_done(o);
2607 pa_operation_unref(o);
2608 }
2609
2610
2611 pa_operation* pa_stream_set_buffer_attr(pa_stream *s, const pa_buffer_attr *attr, pa_stream_success_cb_t cb, void *userdata) {
2612 pa_operation *o;
2613 pa_tagstruct *t;
2614 uint32_t tag;
2615 pa_buffer_attr copy;
2616
2617 pa_assert(s);
2618 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2619 pa_assert(attr);
2620
2621 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2622 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2623 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2624 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
2625
2626 /* Ask for a timing update before we cork/uncork to get the best
2627 * accuracy for the transport latency suitable for the
2628 * check_smoother_status() call in the started callback */
2629 request_auto_timing_update(s, TRUE);
2630
2631 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
2632
2633 t = pa_tagstruct_command(
2634 s->context,
2635 (uint32_t) (s->direction == PA_STREAM_RECORD ? PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR : PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR),
2636 &tag);
2637 pa_tagstruct_putu32(t, s->channel);
2638
2639 copy = *attr;
2640 patch_buffer_attr(s, &copy, NULL);
2641 attr = &copy;
2642
2643 pa_tagstruct_putu32(t, attr->maxlength);
2644
2645 if (s->direction == PA_STREAM_PLAYBACK)
2646 pa_tagstruct_put(
2647 t,
2648 PA_TAG_U32, attr->tlength,
2649 PA_TAG_U32, attr->prebuf,
2650 PA_TAG_U32, attr->minreq,
2651 PA_TAG_INVALID);
2652 else
2653 pa_tagstruct_putu32(t, attr->fragsize);
2654
2655 if (s->context->version >= 13)
2656 pa_tagstruct_put_boolean(t, !!(s->flags & PA_STREAM_ADJUST_LATENCY));
2657
2658 if (s->context->version >= 14)
2659 pa_tagstruct_put_boolean(t, !!(s->flags & PA_STREAM_EARLY_REQUESTS));
2660
2661 pa_pstream_send_tagstruct(s->context->pstream, t);
2662 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_set_buffer_attr_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
2663
2664 /* This might cause changes in the read/write index, hence let's
2665 * request a timing update */
2666 request_auto_timing_update(s, TRUE);
2667
2668 return o;
2669 }
2670
2671 uint32_t pa_stream_get_device_index(pa_stream *s) {
2672 pa_assert(s);
2673 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2674
2675 PA_CHECK_VALIDITY_RETURN_ANY(s->context, !pa_detect_fork(), PA_ERR_FORKED, PA_INVALID_INDEX);
2676 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX);
2677 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE, PA_INVALID_INDEX);
2678 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED, PA_INVALID_INDEX);
2679 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->device_index != PA_INVALID_INDEX, PA_ERR_BADSTATE, PA_INVALID_INDEX);
2680
2681 return s->device_index;
2682 }
2683
2684 const char *pa_stream_get_device_name(pa_stream *s) {
2685 pa_assert(s);
2686 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2687
2688 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2689 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2690 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2691 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
2692 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->device_name, PA_ERR_BADSTATE);
2693
2694 return s->device_name;
2695 }
2696
2697 int pa_stream_is_suspended(pa_stream *s) {
2698 pa_assert(s);
2699 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2700
2701 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2702 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2703 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2704 PA_CHECK_VALIDITY(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
2705
2706 return s->suspended;
2707 }
2708
2709 int pa_stream_is_corked(pa_stream *s) {
2710 pa_assert(s);
2711 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2712
2713 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2714 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2715 PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2716
2717 return s->corked;
2718 }
2719
2720 static void stream_update_sample_rate_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
2721 pa_operation *o = userdata;
2722 int success = 1;
2723
2724 pa_assert(pd);
2725 pa_assert(o);
2726 pa_assert(PA_REFCNT_VALUE(o) >= 1);
2727
2728 if (!o->context)
2729 goto finish;
2730
2731 if (command != PA_COMMAND_REPLY) {
2732 if (pa_context_handle_error(o->context, command, t, FALSE) < 0)
2733 goto finish;
2734
2735 success = 0;
2736 } else {
2737
2738 if (!pa_tagstruct_eof(t)) {
2739 pa_context_fail(o->context, PA_ERR_PROTOCOL);
2740 goto finish;
2741 }
2742 }
2743
2744 o->stream->sample_spec.rate = PA_PTR_TO_UINT(o->private);
2745 pa_assert(pa_sample_spec_valid(&o->stream->sample_spec));
2746
2747 if (o->callback) {
2748 pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback;
2749 cb(o->stream, success, o->userdata);
2750 }
2751
2752 finish:
2753 pa_operation_done(o);
2754 pa_operation_unref(o);
2755 }
2756
2757
2758 pa_operation *pa_stream_update_sample_rate(pa_stream *s, uint32_t rate, pa_stream_success_cb_t cb, void *userdata) {
2759 pa_operation *o;
2760 pa_tagstruct *t;
2761 uint32_t tag;
2762
2763 pa_assert(s);
2764 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2765
2766 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2767 PA_CHECK_VALIDITY_RETURN_NULL(s->context, rate > 0 && rate <= PA_RATE_MAX, PA_ERR_INVALID);
2768 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2769 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2770 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->flags & PA_STREAM_VARIABLE_RATE, PA_ERR_BADSTATE);
2771 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
2772
2773 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
2774 o->private = PA_UINT_TO_PTR(rate);
2775
2776 t = pa_tagstruct_command(
2777 s->context,
2778 (uint32_t) (s->direction == PA_STREAM_RECORD ? PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE : PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE),
2779 &tag);
2780 pa_tagstruct_putu32(t, s->channel);
2781 pa_tagstruct_putu32(t, rate);
2782
2783 pa_pstream_send_tagstruct(s->context->pstream, t);
2784 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_update_sample_rate_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
2785
2786 return o;
2787 }
2788
2789 pa_operation *pa_stream_proplist_update(pa_stream *s, pa_update_mode_t mode, pa_proplist *p, pa_stream_success_cb_t cb, void *userdata) {
2790 pa_operation *o;
2791 pa_tagstruct *t;
2792 uint32_t tag;
2793
2794 pa_assert(s);
2795 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2796
2797 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2798 PA_CHECK_VALIDITY_RETURN_NULL(s->context, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, PA_ERR_INVALID);
2799 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2800 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2801 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED);
2802
2803 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
2804
2805 t = pa_tagstruct_command(
2806 s->context,
2807 (uint32_t) (s->direction == PA_STREAM_RECORD ? PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST : PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST),
2808 &tag);
2809 pa_tagstruct_putu32(t, s->channel);
2810 pa_tagstruct_putu32(t, (uint32_t) mode);
2811 pa_tagstruct_put_proplist(t, p);
2812
2813 pa_pstream_send_tagstruct(s->context->pstream, t);
2814 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
2815
2816 /* Please note that we don't update s->proplist here, because we
2817 * don't export that field */
2818
2819 return o;
2820 }
2821
2822 pa_operation *pa_stream_proplist_remove(pa_stream *s, const char *const keys[], pa_stream_success_cb_t cb, void *userdata) {
2823 pa_operation *o;
2824 pa_tagstruct *t;
2825 uint32_t tag;
2826 const char * const*k;
2827
2828 pa_assert(s);
2829 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2830
2831 PA_CHECK_VALIDITY_RETURN_NULL(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2832 PA_CHECK_VALIDITY_RETURN_NULL(s->context, keys && keys[0], PA_ERR_INVALID);
2833 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
2834 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
2835 PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED);
2836
2837 o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
2838
2839 t = pa_tagstruct_command(
2840 s->context,
2841 (uint32_t) (s->direction == PA_STREAM_RECORD ? PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST : PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST),
2842 &tag);
2843 pa_tagstruct_putu32(t, s->channel);
2844
2845 for (k = keys; *k; k++)
2846 pa_tagstruct_puts(t, *k);
2847
2848 pa_tagstruct_puts(t, NULL);
2849
2850 pa_pstream_send_tagstruct(s->context->pstream, t);
2851 pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
2852
2853 /* Please note that we don't update s->proplist here, because we
2854 * don't export that field */
2855
2856 return o;
2857 }
2858
2859 int pa_stream_set_monitor_stream(pa_stream *s, uint32_t sink_input_idx) {
2860 pa_assert(s);
2861 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2862
2863 PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
2864 PA_CHECK_VALIDITY(s->context, sink_input_idx != PA_INVALID_INDEX, PA_ERR_INVALID);
2865 PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE);
2866 PA_CHECK_VALIDITY(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED);
2867
2868 s->direct_on_input = sink_input_idx;
2869
2870 return 0;
2871 }
2872
2873 uint32_t pa_stream_get_monitor_stream(pa_stream *s) {
2874 pa_assert(s);
2875 pa_assert(PA_REFCNT_VALUE(s) >= 1);
2876
2877 PA_CHECK_VALIDITY_RETURN_ANY(s->context, !pa_detect_fork(), PA_ERR_FORKED, PA_INVALID_INDEX);
2878 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direct_on_input != PA_INVALID_INDEX, PA_ERR_BADSTATE, PA_INVALID_INDEX);
2879 PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED, PA_INVALID_INDEX);
2880
2881 return s->direct_on_input;
2882 }
ALAC Integration into pulseaudio RAOP module