[3d8280]: src / audio_out / audio_pulse_out.c Maximize Restore History

Download this file

audio_pulse_out.c    855 lines (656 with data), 23.6 kB

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Copyright (C) 2000-2008 the xine project
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* ao plugin for PulseAudio:
* http://0pointer.de/lennart/projects/pulsaudio/
*
* Diego Petteno, Lennart Poettering
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <math.h>
#include <unistd.h>
#include <inttypes.h>
#include <pthread.h>
#include <pulse/pulseaudio.h>
#include <xine/xine_internal.h>
#include <xine/xineutils.h>
#include <xine/audio_out.h>
#include "bswap.h"
#define GAP_TOLERANCE AO_MAX_GAP
typedef struct {
audio_driver_class_t driver_class;
xine_t *xine;
} pulse_class_t;
typedef struct pulse_driver_s {
ao_driver_t ao_driver;
xine_t *xine;
pulse_class_t *pa_class;
char *host; /*< The host to connect to */
char *sink; /*< The sink to connect to */
pa_threaded_mainloop *mainloop; /*< Main event loop object */
pa_context *context; /*< Pulseaudio connection context */
pa_stream *stream; /*< Pulseaudio playback stream object */
pa_volume_t swvolume;
int muted;
pa_cvolume cvolume;
int capabilities;
int mode;
uint32_t sample_rate;
uint32_t num_channels;
uint32_t bits_per_sample;
uint32_t bytes_per_frame;
} pulse_driver_t;
/**
* @brief Callback function called when the state of the context is changed
* @param c Context which changed status
* @param this_gen pulse_class_t pointer for the PulseAudio output class
*/
static void __xine_pa_context_state_callback(pa_context *c, void *this_gen)
{
pulse_driver_t * this = (pulse_driver_t*) this_gen;
switch (pa_context_get_state(c)) {
case PA_CONTEXT_READY:
case PA_CONTEXT_TERMINATED:
case PA_CONTEXT_FAILED:
pa_threaded_mainloop_signal(this->mainloop, 0);
break;
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_UNCONNECTED:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
break;
}
}
/**
* @brief Callback function called when the state of the stream is changed
* @param s Stream that changed status
* @param this_gen pulse_driver_t pointer for the PulseAudio output
* instance.
*/
static void __xine_pa_stream_state_callback(pa_stream *s, void *this_gen)
{
pulse_driver_t * this = (pulse_driver_t*) this_gen;
switch (pa_stream_get_state(s)) {
case PA_STREAM_READY:
case PA_STREAM_TERMINATED:
case PA_STREAM_FAILED:
pa_threaded_mainloop_signal(this->mainloop, 0);
break;
case PA_STREAM_UNCONNECTED:
case PA_STREAM_CREATING:
break;
}
}
/**
* @brief Callback function called when PA asks for more audio data.
* @param s Stream on which data is requested
* @param nbytes the number of bytes PA requested
* @param this_gen pulse_driver_t pointer for the PulseAudio output
* instance.
*/
static void __xine_pa_stream_request_callback(pa_stream *s, size_t nbytes, void *this_gen)
{
pulse_driver_t * this = (pulse_driver_t*) this_gen;
pa_threaded_mainloop_signal(this->mainloop, 0);
}
/**
* @brief Callback function called when PA notifies about something
* @param s Stream on which the notification happened
* @param this_gen pulse_driver_t pointer for the PulseAudio output
* instance.
*/
static void __xine_pa_stream_notify_callback(pa_stream *s, void *this_gen)
{
pulse_driver_t * this = (pulse_driver_t*) this_gen;
pa_threaded_mainloop_signal(this->mainloop, 0);
}
/**
* @brief Callback function called when PA completed an operation
* @param ctx Context which operation has succeeded
* @param nbytes the number of bytes PA requested
* @param this_gen pulse_driver_t pointer for the PulseAudio output
* instance.
*/
static void __xine_pa_stream_success_callback(pa_stream *s, int success, void *this_gen)
{
pulse_driver_t * this = (pulse_driver_t*) this_gen;
if (!success)
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: stream operation failed: %s\n", pa_strerror(pa_context_errno(this->context)));
pa_threaded_mainloop_signal(this->mainloop, 0);
}
/**
* @brief Callback function called when PA completed an operation
* @param c Context on which operation has succeeded
* @param nbytes the number of bytes PA requested
* @param this_gen pulse_driver_t pointer for the PulseAudio output
* instance.
*/
static void __xine_pa_context_success_callback(pa_context *c, int success, void *this_gen)
{
pulse_driver_t *this = (pulse_driver_t*) this_gen;
if (!success)
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: context operation failed: %s\n", pa_strerror(pa_context_errno(this->context)));
pa_threaded_mainloop_signal(this->mainloop, 0);
}
/**
* @brief Callback function called when the information on the
* context's sink is retrieved.
* @param ctx Context which operation has succeeded
* @param info Structure containing the sink's information
* @param this_gen pulse_driver_t pointer for the PulseAudio output
* instance.
*
* This function saves the volume field of the passed structure to the
* @c cvolume variable of the output instance.
*/
static void __xine_pa_sink_info_callback(pa_context *c, const pa_sink_input_info *info,
int is_last, void *userdata) {
pulse_driver_t *const this = (pulse_driver_t *) userdata;
if (is_last < 0) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: Failed to get sink input info: %s\n",
pa_strerror(pa_context_errno(this->context)));
return;
}
if (!info)
return;
this->cvolume = info->volume;
this->swvolume = pa_sw_volume_to_linear(pa_cvolume_avg(&info->volume));
this->muted = info->mute;
}
static int connect_context(pulse_driver_t *this) {
if (this->context && (pa_context_get_state(this->context) == PA_CONTEXT_FAILED ||
pa_context_get_state(this->context) == PA_CONTEXT_TERMINATED)) {
pa_context_unref(this->context);
this->context = NULL;
}
if (!this->context) {
char fn[PATH_MAX], *p;
if (pa_get_binary_name(fn, sizeof(fn)))
p = pa_path_get_filename(fn);
else
p = "Xine";
this->context = pa_context_new(pa_threaded_mainloop_get_api(this->mainloop), p);
_x_assert(this->context);
pa_context_set_state_callback(this->context, __xine_pa_context_state_callback, this);
}
if (pa_context_get_state(this->context) == PA_CONTEXT_UNCONNECTED) {
if (pa_context_connect(this->context, this->host, 0, NULL) < 0) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: failed to connect context object %s\n", pa_strerror(pa_context_errno(this->context)));
return -1;
}
}
for (;;) {
pa_context_state_t state = pa_context_get_state(this->context);
if (state == PA_CONTEXT_FAILED || state == PA_CONTEXT_TERMINATED) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: failed to connect context object: %s\n", pa_strerror(pa_context_errno(this->context)));
return -1;
}
if (state == PA_CONTEXT_READY)
break;
pa_threaded_mainloop_wait(this->mainloop);
}
return 0;
}
/*
* open the audio device for writing to
*/
static int ao_pulse_open(ao_driver_t *this_gen,
uint32_t bits, uint32_t rate, int mode)
{
pulse_driver_t *this = (pulse_driver_t *) this_gen;
pa_sample_spec ss;
pa_channel_map cm;
int r;
xprintf (this->xine, XINE_VERBOSITY_DEBUG,
"audio_pulse_out: ao_open bits=%d rate=%d, mode=%d\n", bits, rate, mode);
if ( (mode & this->capabilities) == 0 ) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: unsupported mode %08x\n", mode);
return 0;
}
pa_threaded_mainloop_lock(this->mainloop);
if (this->stream) {
if (mode == this->mode && rate == this->sample_rate &&
bits == this->bits_per_sample) {
pa_threaded_mainloop_unlock(this->mainloop);
return this->sample_rate;
}
pa_stream_disconnect(this->stream);
pa_stream_unref(this->stream);
this->stream = NULL;
}
this->mode = mode;
this->sample_rate = rate;
this->bits_per_sample = bits;
this->num_channels = _x_ao_mode2channels( mode );
this->bytes_per_frame = (this->bits_per_sample*this->num_channels)/8;
ss.rate = rate;
ss.channels = this->num_channels;
switch (bits) {
case 8:
ss.format = PA_SAMPLE_U8;
break;
case 16:
ss.format = PA_SAMPLE_S16NE;
break;
case 32:
ss.format = PA_SAMPLE_FLOAT32NE;
break;
default:
_x_assert(!"Should not be reached");
}
if (!pa_sample_spec_valid(&ss)) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: Invalid sample spec\n");
goto fail;
}
cm.channels = ss.channels;
switch (mode) {
case AO_CAP_MODE_MONO:
cm.map[0] = PA_CHANNEL_POSITION_MONO;
_x_assert(cm.channels == 1);
break;
case AO_CAP_MODE_STEREO:
cm.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
cm.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
_x_assert(cm.channels == 2);
break;
case AO_CAP_MODE_4CHANNEL:
cm.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
cm.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
cm.map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
cm.map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
_x_assert(cm.channels == 4);
break;
case AO_CAP_MODE_4_1CHANNEL:
case AO_CAP_MODE_5CHANNEL:
case AO_CAP_MODE_5_1CHANNEL:
cm.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
cm.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
cm.map[2] = PA_CHANNEL_POSITION_REAR_LEFT;
cm.map[3] = PA_CHANNEL_POSITION_REAR_RIGHT;
cm.map[4] = PA_CHANNEL_POSITION_FRONT_CENTER;
cm.map[5] = PA_CHANNEL_POSITION_LFE;
cm.channels = 6;
break;
default:
_x_assert(!"Should not be reached");
}
if (!pa_channel_map_valid(&cm)) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: Invalid channel map\n");
goto fail;
}
if (connect_context(this) < 0)
goto fail;
_x_assert(!this->stream);
this->stream = pa_stream_new(this->context, "Audio Stream", &ss, &cm);
_x_assert(this->stream);
pa_stream_set_state_callback(this->stream, __xine_pa_stream_state_callback, this);
pa_stream_set_write_callback(this->stream, __xine_pa_stream_request_callback, this);
pa_stream_set_latency_update_callback(this->stream, __xine_pa_stream_notify_callback, this);
r = pa_stream_connect_playback(this->stream, this->sink, NULL,
PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE,
NULL, NULL);
for (;;) {
pa_context_state_t cstate = pa_context_get_state(this->context);
pa_stream_state_t sstate = pa_stream_get_state(this->stream);
if (cstate == PA_CONTEXT_FAILED || cstate == PA_CONTEXT_TERMINATED ||
sstate == PA_STREAM_FAILED || sstate == PA_STREAM_TERMINATED) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: failed to connect context object: %s\n", pa_strerror(pa_context_errno(this->context)));
goto fail;
}
if (sstate == PA_STREAM_READY)
break;
pa_threaded_mainloop_wait(this->mainloop);
}
pa_threaded_mainloop_unlock(this->mainloop);
return this->sample_rate;
fail:
pa_threaded_mainloop_unlock(this->mainloop);
this_gen->close(this_gen);
return 0;
}
static int ao_pulse_num_channels(ao_driver_t *this_gen)
{
pulse_driver_t *this = (pulse_driver_t *) this_gen;
return this->num_channels;
}
static int ao_pulse_bytes_per_frame(ao_driver_t *this_gen)
{
pulse_driver_t *this = (pulse_driver_t *) this_gen;
return this->bytes_per_frame;
}
static int ao_pulse_get_gap_tolerance (ao_driver_t *this_gen)
{
return GAP_TOLERANCE;
}
static int ao_pulse_write(ao_driver_t *this_gen, int16_t *data,
uint32_t num_frames)
{
pulse_driver_t *this = (pulse_driver_t *) this_gen;
size_t size = num_frames * this->bytes_per_frame;
int ret = -1;
size_t done = 0;
pa_threaded_mainloop_lock(this->mainloop);
while (size > 0) {
size_t l;
for (;;) {
if (!this->stream ||
!this->context ||
pa_context_get_state(this->context) != PA_CONTEXT_READY ||
pa_stream_get_state(this->stream) != PA_STREAM_READY)
goto finish;
if ((l = pa_stream_writable_size(this->stream)) == (size_t) -1)
goto finish;
if (l > 0)
break;
pa_threaded_mainloop_wait(this->mainloop);
}
if (l > size)
l = size;
pa_stream_write(this->stream, data, l, NULL, 0, PA_SEEK_RELATIVE);
data = (int16_t *) ((uint8_t*) data + l);
size -= l;
done += l;
}
ret = done;
finish:
pa_threaded_mainloop_unlock(this->mainloop);
/* fprintf(stderr, "write-out\n"); */
return ret;
}
static int ao_pulse_delay (ao_driver_t *this_gen)
{
pulse_driver_t *this = (pulse_driver_t *) this_gen;
int ret = 0;
/* fprintf(stderr, "delay-in\n"); */
pa_threaded_mainloop_lock(this->mainloop);
for (;;) {
pa_usec_t latency = 0;
if (!this->stream ||
!this->context ||
pa_context_get_state(this->context) != PA_CONTEXT_READY ||
pa_stream_get_state(this->stream) != PA_STREAM_READY)
goto finish;
if (pa_stream_get_latency(this->stream, &latency, NULL) >= 0) {
ret = (int) ((latency * this->sample_rate) / 1000000);
goto finish;
}
if (pa_context_errno(this->context) != PA_ERR_NODATA) {
xprintf (this->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: failed to query latency: %s\n", pa_strerror(pa_context_errno(this->context)));
goto finish;
}
pa_threaded_mainloop_wait(this->mainloop);
}
finish:
pa_threaded_mainloop_unlock(this->mainloop);
return ret;
}
static void ao_pulse_close(ao_driver_t *this_gen)
{
pulse_driver_t *this = (pulse_driver_t *) this_gen;
pa_threaded_mainloop_lock(this->mainloop);
if (this->stream) {
pa_stream_disconnect(this->stream);
pa_stream_unref(this->stream);
this->stream = NULL;
}
pa_threaded_mainloop_unlock(this->mainloop);
}
static uint32_t ao_pulse_get_capabilities (ao_driver_t *this_gen) {
pulse_driver_t *this = (pulse_driver_t *) this_gen;
return this->capabilities;
}
static void ao_pulse_exit(ao_driver_t *this_gen) {
pulse_driver_t *this = (pulse_driver_t *) this_gen;
ao_pulse_close(this_gen);
pa_threaded_mainloop_lock(this->mainloop);
if (this->context) {
pa_context_disconnect(this->context);
pa_context_unref(this->context);
}
pa_threaded_mainloop_unlock(this->mainloop);
pa_threaded_mainloop_free(this->mainloop);
free(this->host);
free(this->sink);
free(this);
}
static int wait_for_operation(pulse_driver_t *this, pa_operation *o) {
for (;;) {
if (!this->stream ||
!this->context ||
pa_context_get_state(this->context) != PA_CONTEXT_READY ||
pa_stream_get_state(this->stream) != PA_STREAM_READY)
return -1;
if (pa_operation_get_state(o) != PA_OPERATION_RUNNING)
return 0;
pa_threaded_mainloop_wait(this->mainloop);
}
}
static int ao_pulse_get_property (ao_driver_t *this_gen, int property) {
pulse_driver_t *this = (pulse_driver_t *) this_gen;
int result = 0;
pa_operation *o = NULL;
pa_threaded_mainloop_lock(this->mainloop);
if (!this->stream ||
!this->context ||
pa_context_get_state(this->context) != PA_CONTEXT_READY ||
pa_stream_get_state(this->stream) != PA_STREAM_READY) {
pa_threaded_mainloop_unlock(this->mainloop);
return 0;
}
switch(property) {
case AO_PROP_MUTE_VOL:
case AO_PROP_PCM_VOL:
case AO_PROP_MIXER_VOL:
o = pa_context_get_sink_input_info(this->context, pa_stream_get_index(this->stream),
__xine_pa_sink_info_callback, this);
break;
}
if (o) {
wait_for_operation(this, o);
pa_operation_unref(o);
}
switch(property) {
case AO_PROP_MUTE_VOL:
result = this->muted;
break;
case AO_PROP_PCM_VOL:
case AO_PROP_MIXER_VOL:
result = (int) (pa_sw_volume_to_linear(this->swvolume)*100);
break;
}
pa_threaded_mainloop_unlock(this->mainloop);
return result;
}
static int ao_pulse_set_property (ao_driver_t *this_gen, int property, int value) {
pulse_driver_t *this = (pulse_driver_t *) this_gen;
int result = ~value;
pa_operation *o = NULL;
pa_threaded_mainloop_lock(this->mainloop);
if (!this->stream ||
!this->context ||
pa_context_get_state(this->context) != PA_CONTEXT_READY ||
pa_stream_get_state(this->stream) != PA_STREAM_READY) {
pa_threaded_mainloop_unlock(this->mainloop);
return 0;
}
switch(property) {
case AO_PROP_PCM_VOL:
case AO_PROP_MIXER_VOL:
this->swvolume = pa_sw_volume_from_linear((double)value/100.0);
pa_cvolume_set(&this->cvolume, pa_stream_get_sample_spec(this->stream)->channels, this->swvolume);
o = pa_context_set_sink_input_volume(this->context, pa_stream_get_index(this->stream),
&this->cvolume, __xine_pa_context_success_callback, this);
result = value;
break;
case AO_PROP_MUTE_VOL:
this->muted = value;
o = pa_context_set_sink_input_mute(this->context, pa_stream_get_index(this->stream),
value, __xine_pa_context_success_callback, this);
result = value;
}
if (o) {
wait_for_operation(this, o);
pa_operation_unref(o);
}
pa_threaded_mainloop_unlock(this->mainloop);
return result;
}
static int ao_pulse_ctrl(ao_driver_t *this_gen, int cmd, ...) {
pulse_driver_t *this = (pulse_driver_t *) this_gen;
pa_operation *o = NULL;
pa_threaded_mainloop_lock(this->mainloop);
if (!this->stream ||
!this->context ||
pa_context_get_state(this->context) != PA_CONTEXT_READY ||
pa_stream_get_state(this->stream) != PA_STREAM_READY) {
pa_threaded_mainloop_unlock(this->mainloop);
return 0;
}
switch (cmd) {
case AO_CTRL_FLUSH_BUFFERS:
o = pa_stream_flush(this->stream, __xine_pa_stream_success_callback, this);
break;
case AO_CTRL_PLAY_RESUME:
case AO_CTRL_PLAY_PAUSE:
o = pa_stream_cork(this->stream, cmd == AO_CTRL_PLAY_PAUSE, __xine_pa_stream_success_callback, this);
break;
}
if (o) {
wait_for_operation(this, o);
pa_operation_unref(o);
}
pa_threaded_mainloop_unlock(this->mainloop);
return 0;
}
static ao_driver_t *open_plugin (audio_driver_class_t *class_gen, const void *data) {
pulse_class_t *class = (pulse_class_t *) class_gen;
pulse_driver_t *this;
const char* device;
int r;
lprintf ("audio_pulse_out: open_plugin called\n");
this = (pulse_driver_t *) xine_xmalloc (sizeof (pulse_driver_t));
if (!this)
return NULL;
this->xine = class->xine;
this->host = NULL;
this->sink = NULL;
this->context = NULL;
this->mainloop = NULL;
device = class->xine->config->register_string(class->xine->config,
"audio.pulseaudio_device",
"",
_("device used for pulseaudio"),
_("use 'server[:sink]' for setting the "
"pulseaudio sink device."),
10, NULL,
NULL);
if (device && *device) {
char *sep = strrchr(device, ':');
if ( sep ) {
if (!(this->host = strndup(device, sep-device))) {
free(this);
return NULL;
}
if (!(this->sink = strdup(sep+1))) {
free(this->host);
free(this);
return NULL;
}
} else {
if (!(this->host = strdup(device))) {
free(this);
return NULL;
}
}
}
this->mainloop = pa_threaded_mainloop_new();
_x_assert(this->mainloop);
pa_threaded_mainloop_start(this->mainloop);
/*
* set capabilities
*/
this->capabilities =
AO_CAP_MODE_MONO | AO_CAP_MODE_STEREO | AO_CAP_MODE_4CHANNEL |
AO_CAP_MODE_4_1CHANNEL | AO_CAP_MODE_5CHANNEL | AO_CAP_MODE_5_1CHANNEL |
AO_CAP_MIXER_VOL | AO_CAP_PCM_VOL | AO_CAP_MUTE_VOL |
AO_CAP_8BITS | AO_CAP_16BITS | AO_CAP_FLOAT32;
this->sample_rate = 0;
this->ao_driver.get_capabilities = ao_pulse_get_capabilities;
this->ao_driver.get_property = ao_pulse_get_property;
this->ao_driver.set_property = ao_pulse_set_property;
this->ao_driver.open = ao_pulse_open;
this->ao_driver.num_channels = ao_pulse_num_channels;
this->ao_driver.bytes_per_frame = ao_pulse_bytes_per_frame;
this->ao_driver.delay = ao_pulse_delay;
this->ao_driver.write = ao_pulse_write;
this->ao_driver.close = ao_pulse_close;
this->ao_driver.exit = ao_pulse_exit;
this->ao_driver.get_gap_tolerance = ao_pulse_get_gap_tolerance;
this->ao_driver.control = ao_pulse_ctrl;
xprintf (class->xine, XINE_VERBOSITY_DEBUG, "audio_pulse_out: host %s sink %s\n",
this->host ? this->host : "(null)", this->sink ? this->sink : "(null)");
this->pa_class = class;
pa_threaded_mainloop_lock(this->mainloop);
r = connect_context(this);
pa_threaded_mainloop_unlock(this->mainloop);
if (r < 0) {
ao_pulse_exit((ao_driver_t *) this);
return NULL;
}
return &this->ao_driver;
}
/*
* class functions
*/
static void dispose_class (audio_driver_class_t *this_gen) {
pulse_class_t *this = (pulse_class_t *) this_gen;
free(this);
}
static void *init_class (xine_t *xine, void *data) {
pulse_class_t *this;
lprintf ("audio_pulse_out: init class\n");
this = (pulse_class_t *) xine_xmalloc (sizeof (pulse_class_t));
if (!this)
return NULL;
this->xine = xine;
this->driver_class.open_plugin = open_plugin;
this->driver_class.dispose = dispose_class;
this->driver_class.identifier = "pulseaudio";
this->driver_class.description = N_("xine audio output plugin using pulseaudio sound server");
return this;
}
static const ao_info_t ao_info_pulse = {
12
};
/*
* exported plugin catalog entry
*/
const plugin_info_t xine_plugin_info[] EXPORTED = {
/* type, API, "name", version, special_info, init_function */
{ PLUGIN_AUDIO_OUT, 9, "pulseaudio", XINE_VERSION_CODE, &ao_info_pulse, init_class },
{ PLUGIN_NONE, 0, "", 0, NULL, NULL }
};