4 This file is part of PulseAudio.
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <pulse/introspect.h>
32 #include <pulse/utf8.h>
33 #include <pulse/xmalloc.h>
35 #include <pulsecore/sink-input.h>
36 #include <pulsecore/namereg.h>
37 #include <pulsecore/core-util.h>
38 #include <pulsecore/sample-util.h>
39 #include <pulsecore/core-subscribe.h>
40 #include <pulsecore/log.h>
44 #define MAX_MIX_CHANNELS 32
46 #define CHECK_VALIDITY_RETURN_NULL(condition) \
57 const pa_sample_spec *spec,
58 const pa_channel_map *map) {
70 CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec));
73 map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT);
75 CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map));
76 CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels);
77 CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver));
78 CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name) && *name);
80 s = pa_xnew(pa_sink, 1);
82 if (!(name = pa_namereg_register(core, name, PA_NAMEREG_SINK, s, fail))) {
89 s->state = PA_SINK_RUNNING;
90 s->name = pa_xstrdup(name);
91 s->description = NULL;
92 s->driver = pa_xstrdup(driver);
95 s->sample_spec = *spec;
96 s->channel_map = *map;
98 s->inputs = pa_idxset_new(NULL, NULL);
100 pa_cvolume_reset(&s->sw_volume, spec->channels);
101 pa_cvolume_reset(&s->hw_volume, spec->channels);
107 s->get_latency = NULL;
109 s->set_hw_volume = NULL;
110 s->get_hw_volume = NULL;
111 s->set_hw_mute = NULL;
112 s->get_hw_mute = NULL;
115 r = pa_idxset_put(core->sinks, s, &s->index);
116 assert(s->index != PA_IDXSET_INVALID && r >= 0);
118 pa_sample_spec_snprint(st, sizeof(st), spec);
119 pa_log_info("created %u \"%s\" with sample spec \"%s\"", s->index, s->name, st);
121 n = pa_sprintf_malloc("%s.monitor", name);
123 if (!(s->monitor_source = pa_source_new(core, driver, n, 0, spec, map)))
124 pa_log_warn("failed to create monitor source.");
127 s->monitor_source->monitor_of = s;
128 d = pa_sprintf_malloc("Monitor Source of %s", s->name);
129 pa_source_set_description(s->monitor_source, d);
135 pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
140 void pa_sink_disconnect(pa_sink* s) {
141 pa_sink_input *i, *j = NULL;
144 assert(s->state == PA_SINK_RUNNING);
146 s->state = PA_SINK_DISCONNECTED;
147 pa_namereg_unregister(s->core, s->name);
149 pa_hook_fire(&s->core->hook_sink_disconnect, s);
151 while ((i = pa_idxset_first(s->inputs, NULL))) {
153 pa_sink_input_kill(i);
157 if (s->monitor_source)
158 pa_source_disconnect(s->monitor_source);
160 pa_idxset_remove_by_data(s->core->sinks, s, NULL);
162 s->get_latency = NULL;
164 s->get_hw_volume = NULL;
165 s->set_hw_volume = NULL;
166 s->set_hw_mute = NULL;
167 s->get_hw_mute = NULL;
169 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index);
172 static void sink_free(pa_sink *s) {
176 if (s->state != PA_SINK_DISCONNECTED)
177 pa_sink_disconnect(s);
179 pa_log_info("freed %u \"%s\"", s->index, s->name);
181 if (s->monitor_source) {
182 pa_source_unref(s->monitor_source);
183 s->monitor_source = NULL;
186 pa_idxset_free(s->inputs, NULL, NULL);
189 pa_xfree(s->description);
194 void pa_sink_unref(pa_sink*s) {
202 pa_sink* pa_sink_ref(pa_sink *s) {
210 void pa_sink_notify(pa_sink*s) {
218 static unsigned fill_mix_info(pa_sink *s, pa_mix_info *info, unsigned maxinfo) {
219 uint32_t idx = PA_IDXSET_INVALID;
227 for (i = pa_idxset_first(s->inputs, &idx); maxinfo > 0 && i; i = pa_idxset_next(s->inputs, &idx)) {
228 /* Increase ref counter, to make sure that this input doesn't
229 * vanish while we still need it */
230 pa_sink_input_ref(i);
232 if (pa_sink_input_peek(i, &info->chunk, &info->volume) < 0) {
233 pa_sink_input_unref(i);
239 assert(info->chunk.memblock);
240 assert(info->chunk.memblock->data);
241 assert(info->chunk.length);
251 static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned maxinfo, size_t length) {
256 for (; maxinfo > 0; maxinfo--, info++) {
257 pa_sink_input *i = info->userdata;
260 assert(info->chunk.memblock);
263 pa_sink_input_drop(i, &info->chunk, length);
264 pa_memblock_unref(info->chunk.memblock);
266 /* Decrease ref counter */
267 pa_sink_input_unref(i);
268 info->userdata = NULL;
272 int pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
273 pa_mix_info info[MAX_MIX_CHANNELS];
284 n = fill_mix_info(s, info, MAX_MIX_CHANNELS);
292 *result = info[0].chunk;
293 pa_memblock_ref(result->memblock);
295 if (result->length > length)
296 result->length = length;
298 pa_sw_cvolume_multiply(&volume, &s->sw_volume, &info[0].volume);
300 if (s->sw_muted || !pa_cvolume_is_norm(&volume)) {
301 pa_memchunk_make_writable(result, 0);
303 pa_silence_memchunk(result, &s->sample_spec);
305 pa_volume_memchunk(result, &s->sample_spec, &volume);
308 result->memblock = pa_memblock_new(s->core->mempool, length);
309 assert(result->memblock);
311 /* pa_log("mixing %i", n); */
313 result->length = pa_mix(info, n, result->memblock->data, length,
314 &s->sample_spec, &s->sw_volume, s->sw_muted);
318 inputs_drop(s, info, n, result->length);
320 if (s->monitor_source)
321 pa_source_post(s->monitor_source, result);
331 int pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
332 pa_mix_info info[MAX_MIX_CHANNELS];
339 assert(target->memblock);
340 assert(target->length);
341 assert(target->memblock->data);
345 n = fill_mix_info(s, info, MAX_MIX_CHANNELS);
353 if (target->length > info[0].chunk.length)
354 target->length = info[0].chunk.length;
356 memcpy((uint8_t*) target->memblock->data + target->index,
357 (uint8_t*) info[0].chunk.memblock->data + info[0].chunk.index,
360 pa_sw_cvolume_multiply(&volume, &s->sw_volume, &info[0].volume);
363 pa_silence_memchunk(target, &s->sample_spec);
364 else if (!pa_cvolume_is_norm(&volume))
365 pa_volume_memchunk(target, &s->sample_spec, &volume);
367 target->length = pa_mix(info, n,
368 (uint8_t*) target->memblock->data + target->index,
374 inputs_drop(s, info, n, target->length);
376 if (s->monitor_source)
377 pa_source_post(s->monitor_source, target);
387 void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
394 assert(target->memblock);
395 assert(target->length);
396 assert(target->memblock->data);
407 if (pa_sink_render_into(s, &chunk) < 0)
418 pa_silence_memchunk(&chunk, &s->sample_spec);
424 void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
430 /*** This needs optimization ***/
432 result->memblock = pa_memblock_new(s->core->mempool, result->length = length);
435 pa_sink_render_into_full(s, result);
438 pa_usec_t pa_sink_get_latency(pa_sink *s) {
445 return s->get_latency(s);
448 void pa_sink_set_owner(pa_sink *s, pa_module *m) {
457 if (s->monitor_source)
458 pa_source_set_owner(s->monitor_source, m);
460 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
463 void pa_sink_set_volume(pa_sink *s, pa_mixer_t m, const pa_cvolume *volume) {
470 if (m == PA_MIXER_HARDWARE && s->set_hw_volume)
475 if (pa_cvolume_equal(v, volume))
480 if (v == &s->hw_volume)
481 if (s->set_hw_volume(s) < 0)
482 s->sw_volume = *volume;
484 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
487 const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_mixer_t m) {
491 if (m == PA_MIXER_HARDWARE && s->set_hw_volume) {
493 if (s->get_hw_volume)
496 return &s->hw_volume;
498 return &s->sw_volume;
501 void pa_sink_set_mute(pa_sink *s, pa_mixer_t m, int mute) {
507 if (m == PA_MIXER_HARDWARE && s->set_hw_mute)
517 if (t == &s->hw_muted)
518 if (s->set_hw_mute(s) < 0)
519 s->sw_muted = !!mute;
521 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
524 int pa_sink_get_mute(pa_sink *s, pa_mixer_t m) {
528 if (m == PA_MIXER_HARDWARE && s->set_hw_mute) {
538 void pa_sink_set_description(pa_sink *s, const char *description) {
542 if (!description && !s->description)
545 if (description && s->description && !strcmp(description, s->description))
548 pa_xfree(s->description);
549 s->description = pa_xstrdup(description);
551 if (s->monitor_source) {
554 n = pa_sprintf_malloc("Monitor Source of %s", s->description? s->description : s->name);
555 pa_source_set_description(s->monitor_source, n);
559 pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index);
562 unsigned pa_sink_used_by(pa_sink *s) {
568 ret = pa_idxset_size(s->inputs);
570 if (s->monitor_source)
571 ret += pa_source_used_by(s->monitor_source);