2 This file is part of PulseAudio.
4 Copyright 2004-2008 Lennart Poettering
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 2.1 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
22 /* TODO: Some plugins cause latency, and some even report it by using a control
23 out port. We don't currently use the latency information. */
29 #include <pulse/xmalloc.h>
31 #include <pulsecore/core-error.h>
32 #include <pulsecore/namereg.h>
33 #include <pulsecore/sink.h>
34 #include <pulsecore/module.h>
35 #include <pulsecore/core-util.h>
36 #include <pulsecore/modargs.h>
37 #include <pulsecore/log.h>
38 #include <pulsecore/thread.h>
39 #include <pulsecore/thread-mq.h>
40 #include <pulsecore/rtpoll.h>
41 #include <pulsecore/sample-util.h>
42 #include <pulsecore/ltdl-helper.h>
44 #include "module-ladspa-sink-symdef.h"
47 PA_MODULE_AUTHOR("Lennart Poettering");
48 PA_MODULE_DESCRIPTION("Virtual LADSPA sink");
49 PA_MODULE_VERSION(PACKAGE_VERSION);
50 PA_MODULE_LOAD_ONCE(FALSE);
52 "sink_name=<name for the sink> "
53 "master=<name of sink to remap> "
54 "format=<sample format> "
55 "channels=<number of channels> "
57 "channel_map=<channel map> "
58 "plugin=<ladspa plugin name> "
59 "label=<ladspa plugin label> "
60 "control=<comma seperated list of input control values>");
62 #define MEMBLOCKQ_MAXLENGTH (16*1024*1024)
68 pa_sink *sink, *master;
69 pa_sink_input *sink_input;
71 const LADSPA_Descriptor *descriptor;
73 LADSPA_Handle handle[PA_CHANNELS_MAX];
74 LADSPA_Data *input, *output;
76 unsigned long input_port, output_port;
79 /* This is a dummy buffer. Every port must be connected, but we don't care
80 about control out ports. We connect them all to this single buffer. */
81 LADSPA_Data control_out;
83 pa_memblockq *memblockq;
86 static const char* const valid_modargs[] = {
99 /* Called from I/O thread context */
100 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
101 struct userdata *u = PA_SINK(o)->userdata;
105 case PA_SINK_MESSAGE_GET_LATENCY: {
108 /* Get the latency of the master sink */
109 if (PA_MSGOBJECT(u->master)->process_msg(PA_MSGOBJECT(u->master), PA_SINK_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
112 /* Add the latency internal to our sink input on top */
113 usec += pa_bytes_to_usec(pa_memblockq_get_length(u->sink_input->thread_info.render_memblockq), &u->master->sample_spec);
115 *((pa_usec_t*) data) = usec;
120 return pa_sink_process_msg(o, code, data, offset, chunk);
123 /* Called from main context */
124 static int sink_set_state(pa_sink *s, pa_sink_state_t state) {
127 pa_sink_assert_ref(s);
128 pa_assert_se(u = s->userdata);
130 if (PA_SINK_IS_LINKED(state) &&
132 PA_SINK_INPUT_IS_LINKED(pa_sink_input_get_state(u->sink_input)))
134 pa_sink_input_cork(u->sink_input, state == PA_SINK_SUSPENDED);
139 /* Called from I/O thread context */
140 static void sink_request_rewind(pa_sink *s) {
143 pa_sink_assert_ref(s);
144 pa_assert_se(u = s->userdata);
146 /* Just hand this one over to the master sink */
147 pa_sink_input_request_rewind(u->sink_input, s->thread_info.rewind_nbytes + pa_memblockq_get_length(u->memblockq), TRUE, FALSE, FALSE);
150 /* Called from I/O thread context */
151 static void sink_update_requested_latency(pa_sink *s) {
154 pa_sink_assert_ref(s);
155 pa_assert_se(u = s->userdata);
157 /* Just hand this one over to the master sink */
158 pa_sink_input_set_requested_latency_within_thread(
160 pa_sink_get_requested_latency_within_thread(s));
163 /* Called from I/O thread context */
164 static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
171 pa_sink_input_assert_ref(i);
173 pa_assert_se(u = i->userdata);
175 if (!u->sink || !PA_SINK_IS_OPENED(u->sink->thread_info.state))
178 while (pa_memblockq_peek(u->memblockq, &tchunk) < 0) {
181 pa_sink_render(u->sink, nbytes, &nchunk);
182 pa_memblockq_push(u->memblockq, &nchunk);
183 pa_memblock_unref(nchunk.memblock);
186 tchunk.length = PA_MIN(nbytes, tchunk.length);
187 pa_assert(tchunk.length > 0);
189 fs = pa_frame_size(&i->sample_spec);
190 n = (unsigned) (PA_MIN(tchunk.length, u->block_size) / fs);
195 chunk->length = n*fs;
196 chunk->memblock = pa_memblock_new(i->sink->core->mempool, chunk->length);
198 pa_memblockq_drop(u->memblockq, chunk->length);
200 src = (float*) ((uint8_t*) pa_memblock_acquire(tchunk.memblock) + tchunk.index);
201 dst = (float*) pa_memblock_acquire(chunk->memblock);
203 for (c = 0; c < u->channels; c++) {
204 pa_sample_clamp(PA_SAMPLE_FLOAT32NE, u->input, sizeof(float), src+c, u->channels*sizeof(float), n);
205 u->descriptor->run(u->handle[c], n);
206 pa_sample_clamp(PA_SAMPLE_FLOAT32NE, dst+c, u->channels*sizeof(float), u->output, sizeof(float), n);
209 pa_memblock_release(tchunk.memblock);
210 pa_memblock_release(chunk->memblock);
212 pa_memblock_unref(tchunk.memblock);
217 /* Called from I/O thread context */
218 static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
222 pa_sink_input_assert_ref(i);
223 pa_assert_se(u = i->userdata);
225 if (!u->sink || !PA_SINK_IS_OPENED(u->sink->thread_info.state))
228 if (u->sink->thread_info.rewind_nbytes > 0) {
231 max_rewrite = nbytes + pa_memblockq_get_length(u->memblockq);
232 amount = PA_MIN(u->sink->thread_info.rewind_nbytes, max_rewrite);
233 u->sink->thread_info.rewind_nbytes = 0;
238 pa_memblockq_seek(u->memblockq, - (int64_t) amount, PA_SEEK_RELATIVE, TRUE);
240 pa_log_debug("Resetting plugin");
242 /* Reset the plugin */
243 if (u->descriptor->deactivate)
244 for (c = 0; c < u->channels; c++)
245 u->descriptor->deactivate(u->handle[c]);
246 if (u->descriptor->activate)
247 for (c = 0; c < u->channels; c++)
248 u->descriptor->activate(u->handle[c]);
252 pa_sink_process_rewind(u->sink, amount);
253 pa_memblockq_rewind(u->memblockq, nbytes);
256 /* Called from I/O thread context */
257 static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
260 pa_sink_input_assert_ref(i);
261 pa_assert_se(u = i->userdata);
263 if (!u->sink || !PA_SINK_IS_LINKED(u->sink->thread_info.state))
266 pa_memblockq_set_maxrewind(u->memblockq, nbytes);
267 pa_sink_set_max_rewind_within_thread(u->sink, nbytes);
270 /* Called from I/O thread context */
271 static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) {
274 pa_sink_input_assert_ref(i);
275 pa_assert_se(u = i->userdata);
277 if (!u->sink || !PA_SINK_IS_LINKED(u->sink->thread_info.state))
280 pa_sink_set_max_request_within_thread(u->sink, nbytes);
283 /* Called from I/O thread context */
284 static void sink_input_update_sink_latency_range_cb(pa_sink_input *i) {
287 pa_sink_input_assert_ref(i);
288 pa_assert_se(u = i->userdata);
290 if (!u->sink || !PA_SINK_IS_LINKED(u->sink->thread_info.state))
293 pa_sink_set_latency_range_within_thread(u->sink, i->sink->thread_info.min_latency, i->sink->thread_info.max_latency);
296 /* Called from I/O thread context */
297 static void sink_input_detach_cb(pa_sink_input *i) {
300 pa_sink_input_assert_ref(i);
301 pa_assert_se(u = i->userdata);
303 if (!u->sink || !PA_SINK_IS_LINKED(u->sink->thread_info.state))
306 pa_sink_detach_within_thread(u->sink);
307 pa_sink_set_asyncmsgq(u->sink, NULL);
308 pa_sink_set_rtpoll(u->sink, NULL);
311 /* Called from I/O thread context */
312 static void sink_input_attach_cb(pa_sink_input *i) {
315 pa_sink_input_assert_ref(i);
316 pa_assert_se(u = i->userdata);
318 if (!u->sink || !PA_SINK_IS_LINKED(u->sink->thread_info.state))
321 pa_sink_set_asyncmsgq(u->sink, i->sink->asyncmsgq);
322 pa_sink_set_rtpoll(u->sink, i->sink->rtpoll);
323 pa_sink_attach_within_thread(u->sink);
325 pa_sink_set_latency_range_within_thread(u->sink, u->master->thread_info.min_latency, u->master->thread_info.max_latency);
328 /* Called from main context */
329 static void sink_input_kill_cb(pa_sink_input *i) {
332 pa_sink_input_assert_ref(i);
333 pa_assert_se(u = i->userdata);
335 pa_sink_unlink(u->sink);
336 pa_sink_input_unlink(u->sink_input);
338 pa_sink_unref(u->sink);
340 pa_sink_input_unref(u->sink_input);
341 u->sink_input = NULL;
343 pa_module_unload_request(u->module, TRUE);
346 /* Called from IO thread context */
347 static void sink_input_state_change_cb(pa_sink_input *i, pa_sink_input_state_t state) {
350 pa_sink_input_assert_ref(i);
351 pa_assert_se(u = i->userdata);
353 /* If we are added for the first time, ask for a rewinding so that
354 * we are heard right-away. */
355 if (PA_SINK_INPUT_IS_LINKED(state) &&
356 i->thread_info.state == PA_SINK_INPUT_INIT) {
357 pa_log_debug("Requesting rewind due to state change.");
358 pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
362 /* Called from main context */
363 static pa_bool_t sink_input_may_move_to_cb(pa_sink_input *i, pa_sink *dest) {
366 pa_sink_input_assert_ref(i);
367 pa_assert_se(u = i->userdata);
369 return u->sink != dest;
372 int pa__init(pa_module*m) {
380 pa_sink_input_new_data sink_input_data;
381 pa_sink_new_data sink_data;
382 const char *plugin, *label;
383 LADSPA_Descriptor_Function descriptor_func;
384 const char *e, *cdata;
385 const LADSPA_Descriptor *d;
386 unsigned long input_port, output_port, p, j, n_control;
388 pa_bool_t *use_default = NULL;
392 pa_assert(sizeof(LADSPA_Data) == sizeof(float));
394 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
395 pa_log("Failed to parse module arguments.");
399 if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SINK))) {
400 pa_log("Master sink not found");
404 ss = master->sample_spec;
405 ss.format = PA_SAMPLE_FLOAT32;
406 map = master->channel_map;
407 if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
408 pa_log("Invalid sample format specification or channel map");
412 if (!(plugin = pa_modargs_get_value(ma, "plugin", NULL))) {
413 pa_log("Missing LADSPA plugin name");
417 if (!(label = pa_modargs_get_value(ma, "label", NULL))) {
418 pa_log("Missing LADSPA plugin label");
422 cdata = pa_modargs_get_value(ma, "control", NULL);
424 u = pa_xnew0(struct userdata, 1);
430 u->sink_input = NULL;
431 u->memblockq = pa_memblockq_new(0, MEMBLOCKQ_MAXLENGTH, 0, pa_frame_size(&ss), 1, 1, 0, NULL);
433 if (!(e = getenv("LADSPA_PATH")))
436 /* FIXME: This is not exactly thread safe */
437 t = pa_xstrdup(lt_dlgetsearchpath());
438 lt_dlsetsearchpath(e);
439 m->dl = lt_dlopenext(plugin);
440 lt_dlsetsearchpath(t);
444 pa_log("Failed to load LADSPA plugin: %s", lt_dlerror());
448 if (!(descriptor_func = (LADSPA_Descriptor_Function) pa_load_sym(m->dl, NULL, "ladspa_descriptor"))) {
449 pa_log("LADSPA module lacks ladspa_descriptor() symbol.");
455 if (!(d = descriptor_func(j))) {
456 pa_log("Failed to find plugin label '%s' in plugin '%s'.", label, plugin);
460 if (strcmp(d->Label, label) == 0)
466 pa_log_debug("Module: %s", plugin);
467 pa_log_debug("Label: %s", d->Label);
468 pa_log_debug("Unique ID: %lu", d->UniqueID);
469 pa_log_debug("Name: %s", d->Name);
470 pa_log_debug("Maker: %s", d->Maker);
471 pa_log_debug("Copyright: %s", d->Copyright);
473 input_port = output_port = (unsigned long) -1;
476 for (p = 0; p < d->PortCount; p++) {
478 if (LADSPA_IS_PORT_INPUT(d->PortDescriptors[p]) && LADSPA_IS_PORT_AUDIO(d->PortDescriptors[p])) {
480 if (strcmp(d->PortNames[p], "Input") == 0) {
481 pa_assert(input_port == (unsigned long) -1);
484 pa_log("Found audio input port on plugin we cannot handle: %s", d->PortNames[p]);
488 } else if (LADSPA_IS_PORT_OUTPUT(d->PortDescriptors[p]) && LADSPA_IS_PORT_AUDIO(d->PortDescriptors[p])) {
490 if (strcmp(d->PortNames[p], "Output") == 0) {
491 pa_assert(output_port == (unsigned long) -1);
494 pa_log("Found audio output port on plugin we cannot handle: %s", d->PortNames[p]);
498 } else if (LADSPA_IS_PORT_INPUT(d->PortDescriptors[p]) && LADSPA_IS_PORT_CONTROL(d->PortDescriptors[p]))
501 pa_assert(LADSPA_IS_PORT_OUTPUT(d->PortDescriptors[p]) && LADSPA_IS_PORT_CONTROL(d->PortDescriptors[p]));
502 pa_log_debug("Ignored control output port \"%s\".", d->PortNames[p]);
506 if ((input_port == (unsigned long) -1) || (output_port == (unsigned long) -1)) {
507 pa_log("Failed to identify input and output ports. "
508 "Right now this module can only deal with plugins which provide an 'Input' and an 'Output' audio port. "
513 u->block_size = pa_frame_align(pa_mempool_block_size_max(m->core->mempool), &ss);
515 u->input = (LADSPA_Data*) pa_xnew(uint8_t, (unsigned) u->block_size);
516 if (LADSPA_IS_INPLACE_BROKEN(d->Properties))
517 u->output = (LADSPA_Data*) pa_xnew(uint8_t, (unsigned) u->block_size);
519 u->output = u->input;
521 u->channels = ss.channels;
523 for (c = 0; c < ss.channels; c++) {
524 if (!(u->handle[c] = d->instantiate(d, ss.rate))) {
525 pa_log("Failed to instantiate plugin %s with label %s for channel %i", plugin, d->Label, c);
529 d->connect_port(u->handle[c], input_port, u->input);
530 d->connect_port(u->handle[c], output_port, u->output);
533 if (!cdata && n_control > 0) {
534 pa_log("This plugin requires specification of %lu control parameters.", n_control);
539 const char *state = NULL;
543 u->control = pa_xnew(LADSPA_Data, (unsigned) n_control);
544 use_default = pa_xnew(pa_bool_t, (unsigned) n_control);
547 while ((k = pa_split(cdata, ",", &state)) && p < n_control) {
551 use_default[p++] = TRUE;
556 if (pa_atod(k, &f) < 0) {
557 pa_log("Failed to parse control value '%s'", k);
564 use_default[p] = FALSE;
565 u->control[p++] = (LADSPA_Data) f;
568 /* The previous loop doesn't take the last control value into account
569 if it is left empty, so we do it here. */
570 if (*cdata == 0 || cdata[strlen(cdata) - 1] == ',') {
572 use_default[p] = TRUE;
576 if (p > n_control || k) {
577 pa_log("Too many control values passed, %lu expected.", n_control);
583 pa_log("Not enough control values passed, %lu expected, %lu passed.", n_control, p);
588 for (p = 0; p < d->PortCount; p++) {
589 LADSPA_PortRangeHintDescriptor hint = d->PortRangeHints[p].HintDescriptor;
591 if (!LADSPA_IS_PORT_CONTROL(d->PortDescriptors[p]))
594 if (LADSPA_IS_PORT_OUTPUT(d->PortDescriptors[p])) {
595 for (c = 0; c < ss.channels; c++)
596 d->connect_port(u->handle[c], p, &u->control_out);
600 pa_assert(h < n_control);
602 if (use_default[h]) {
603 LADSPA_Data lower, upper;
605 if (!LADSPA_IS_HINT_HAS_DEFAULT(hint)) {
606 pa_log("Control port value left empty but plugin defines no default.");
610 lower = d->PortRangeHints[p].LowerBound;
611 upper = d->PortRangeHints[p].UpperBound;
613 if (LADSPA_IS_HINT_SAMPLE_RATE(hint)) {
614 lower *= (LADSPA_Data) ss.rate;
615 upper *= (LADSPA_Data) ss.rate;
618 switch (hint & LADSPA_HINT_DEFAULT_MASK) {
620 case LADSPA_HINT_DEFAULT_MINIMUM:
621 u->control[h] = lower;
624 case LADSPA_HINT_DEFAULT_MAXIMUM:
625 u->control[h] = upper;
628 case LADSPA_HINT_DEFAULT_LOW:
629 if (LADSPA_IS_HINT_LOGARITHMIC(hint))
630 u->control[h] = (LADSPA_Data) exp(log(lower) * 0.75 + log(upper) * 0.25);
632 u->control[h] = (LADSPA_Data) (lower * 0.75 + upper * 0.25);
635 case LADSPA_HINT_DEFAULT_MIDDLE:
636 if (LADSPA_IS_HINT_LOGARITHMIC(hint))
637 u->control[h] = (LADSPA_Data) exp(log(lower) * 0.5 + log(upper) * 0.5);
639 u->control[h] = (LADSPA_Data) (lower * 0.5 + upper * 0.5);
642 case LADSPA_HINT_DEFAULT_HIGH:
643 if (LADSPA_IS_HINT_LOGARITHMIC(hint))
644 u->control[h] = (LADSPA_Data) exp(log(lower) * 0.25 + log(upper) * 0.75);
646 u->control[h] = (LADSPA_Data) (lower * 0.25 + upper * 0.75);
649 case LADSPA_HINT_DEFAULT_0:
653 case LADSPA_HINT_DEFAULT_1:
657 case LADSPA_HINT_DEFAULT_100:
661 case LADSPA_HINT_DEFAULT_440:
666 pa_assert_not_reached();
670 if (LADSPA_IS_HINT_INTEGER(hint))
671 u->control[h] = roundf(u->control[h]);
673 pa_log_debug("Binding %f to port %s", u->control[h], d->PortNames[p]);
675 for (c = 0; c < ss.channels; c++)
676 d->connect_port(u->handle[c], p, &u->control[h]);
681 pa_assert(h == n_control);
685 for (c = 0; c < u->channels; c++)
686 d->activate(u->handle[c]);
689 pa_sink_new_data_init(&sink_data);
690 sink_data.driver = __FILE__;
691 sink_data.module = m;
692 if (!(sink_data.name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", NULL))))
693 sink_data.name = pa_sprintf_malloc("%s.ladspa", master->name);
694 sink_data.namereg_fail = FALSE;
695 pa_sink_new_data_set_sample_spec(&sink_data, &ss);
696 pa_sink_new_data_set_channel_map(&sink_data, &map);
697 z = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION);
698 pa_proplist_setf(sink_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "LADSPA Plugin %s on %s", label, z ? z : master->name);
699 pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name);
700 pa_proplist_sets(sink_data.proplist, PA_PROP_DEVICE_CLASS, "filter");
701 pa_proplist_sets(sink_data.proplist, "device.ladspa.module", plugin);
702 pa_proplist_sets(sink_data.proplist, "device.ladspa.label", d->Label);
703 pa_proplist_sets(sink_data.proplist, "device.ladspa.name", d->Name);
704 pa_proplist_sets(sink_data.proplist, "device.ladspa.maker", d->Maker);
705 pa_proplist_sets(sink_data.proplist, "device.ladspa.copyright", d->Copyright);
706 pa_proplist_setf(sink_data.proplist, "device.ladspa.unique_id", "%lu", (unsigned long) d->UniqueID);
708 u->sink = pa_sink_new(m->core, &sink_data, PA_SINK_LATENCY|PA_SINK_DYNAMIC_LATENCY);
709 pa_sink_new_data_done(&sink_data);
712 pa_log("Failed to create sink.");
716 u->sink->parent.process_msg = sink_process_msg;
717 u->sink->set_state = sink_set_state;
718 u->sink->update_requested_latency = sink_update_requested_latency;
719 u->sink->request_rewind = sink_request_rewind;
720 u->sink->userdata = u;
722 pa_sink_set_asyncmsgq(u->sink, master->asyncmsgq);
723 pa_sink_set_rtpoll(u->sink, master->rtpoll);
725 /* Create sink input */
726 pa_sink_input_new_data_init(&sink_input_data);
727 sink_input_data.driver = __FILE__;
728 sink_input_data.module = m;
729 sink_input_data.sink = u->master;
730 pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_NAME, "LADSPA Stream");
731 pa_proplist_sets(sink_input_data.proplist, PA_PROP_MEDIA_ROLE, "filter");
732 pa_sink_input_new_data_set_sample_spec(&sink_input_data, &ss);
733 pa_sink_input_new_data_set_channel_map(&sink_input_data, &map);
735 pa_sink_input_new(&u->sink_input, m->core, &sink_input_data, PA_SINK_INPUT_DONT_MOVE);
736 pa_sink_input_new_data_done(&sink_input_data);
741 u->sink_input->pop = sink_input_pop_cb;
742 u->sink_input->process_rewind = sink_input_process_rewind_cb;
743 u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
744 u->sink_input->update_max_request = sink_input_update_max_request_cb;
745 u->sink_input->update_sink_latency_range = sink_input_update_sink_latency_range_cb;
746 u->sink_input->kill = sink_input_kill_cb;
747 u->sink_input->attach = sink_input_attach_cb;
748 u->sink_input->detach = sink_input_detach_cb;
749 u->sink_input->state_change = sink_input_state_change_cb;
750 u->sink_input->may_move_to = sink_input_may_move_to_cb;
751 u->sink_input->userdata = u;
753 pa_sink_put(u->sink);
754 pa_sink_input_put(u->sink_input);
758 pa_xfree(use_default);
766 pa_xfree(use_default);
773 int pa__get_n_used(pa_module *m) {
777 pa_assert_se(u = m->userdata);
779 return pa_sink_linked_by(u->sink);
782 void pa__done(pa_module*m) {
788 if (!(u = m->userdata))
792 pa_sink_unlink(u->sink);
793 pa_sink_unref(u->sink);
797 pa_sink_input_unlink(u->sink_input);
798 pa_sink_input_unref(u->sink_input);
801 for (c = 0; c < u->channels; c++)
803 if (u->descriptor->deactivate)
804 u->descriptor->deactivate(u->handle[c]);
805 u->descriptor->cleanup(u->handle[c]);
808 if (u->output != u->input)
812 pa_memblockq_free(u->memblockq);
816 pa_xfree(u->control);