4 This file is part of PulseAudio.
6 Copyright 2004-2008 Lennart Poettering
8 PulseAudio is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published
10 by the Free Software Foundation; either version 2 of the License,
11 or (at your option) any later version.
13 PulseAudio is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with PulseAudio; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 /* TODO: Some plugins cause latency, and some even report it by using a control
25 out port. We don't currently use the latency information. */
31 #include <pulse/xmalloc.h>
33 #include <pulsecore/core-error.h>
34 #include <pulsecore/namereg.h>
35 #include <pulsecore/sink.h>
36 #include <pulsecore/module.h>
37 #include <pulsecore/core-util.h>
38 #include <pulsecore/modargs.h>
39 #include <pulsecore/log.h>
40 #include <pulsecore/thread.h>
41 #include <pulsecore/thread-mq.h>
42 #include <pulsecore/rtpoll.h>
43 #include <pulsecore/sample-util.h>
44 #include <pulsecore/ltdl-helper.h>
46 #include "module-ladspa-sink-symdef.h"
49 PA_MODULE_AUTHOR("Lennart Poettering");
50 PA_MODULE_DESCRIPTION("Virtual LADSPA sink");
51 PA_MODULE_VERSION(PACKAGE_VERSION
);
52 PA_MODULE_LOAD_ONCE(FALSE
);
54 "sink_name=<name for the sink> "
55 "master=<name of sink to remap> "
56 "format=<sample format> "
57 "channels=<number of channels> "
59 "channel_map=<channel map> "
60 "plugin=<ladspa plugin name> "
61 "label=<ladspa plugin label> "
62 "control=<comma seperated list of input control values>");
64 #define MEMBLOCKQ_MAXLENGTH (16*1024*1024)
70 pa_sink
*sink
, *master
;
71 pa_sink_input
*sink_input
;
73 const LADSPA_Descriptor
*descriptor
;
75 LADSPA_Handle handle
[PA_CHANNELS_MAX
];
76 LADSPA_Data
*input
, *output
;
78 unsigned long input_port
, output_port
;
81 /* This is a dummy buffer. Every port must be connected, but we don't care
82 about control out ports. We connect them all to this single buffer. */
83 LADSPA_Data control_out
;
85 pa_memblockq
*memblockq
;
88 static const char* const valid_modargs
[] = {
101 /* Called from I/O thread context */
102 static int sink_process_msg(pa_msgobject
*o
, int code
, void *data
, int64_t offset
, pa_memchunk
*chunk
) {
103 struct userdata
*u
= PA_SINK(o
)->userdata
;
107 case PA_SINK_MESSAGE_GET_LATENCY
: {
110 /* Get the latency of the master sink */
111 if (PA_MSGOBJECT(u
->master
)->process_msg(PA_MSGOBJECT(u
->master
), PA_SINK_MESSAGE_GET_LATENCY
, &usec
, 0, NULL
) < 0)
114 /* Add the latency internal to our sink input on top */
115 usec
+= pa_bytes_to_usec(pa_memblockq_get_length(u
->sink_input
->thread_info
.render_memblockq
), &u
->master
->sample_spec
);
117 *((pa_usec_t
*) data
) = usec
;
122 return pa_sink_process_msg(o
, code
, data
, offset
, chunk
);
125 /* Called from main context */
126 static int sink_set_state(pa_sink
*s
, pa_sink_state_t state
) {
129 pa_sink_assert_ref(s
);
130 pa_assert_se(u
= s
->userdata
);
132 if (PA_SINK_IS_LINKED(state
) &&
134 PA_SINK_INPUT_IS_LINKED(pa_sink_input_get_state(u
->sink_input
)))
136 pa_sink_input_cork(u
->sink_input
, state
== PA_SINK_SUSPENDED
);
141 /* Called from I/O thread context */
142 static void sink_request_rewind(pa_sink
*s
) {
145 pa_sink_assert_ref(s
);
146 pa_assert_se(u
= s
->userdata
);
148 /* Just hand this one over to the master sink */
149 pa_sink_input_request_rewind(u
->sink_input
, s
->thread_info
.rewind_nbytes
+ pa_memblockq_get_length(u
->memblockq
), TRUE
, FALSE
);
152 /* Called from I/O thread context */
153 static void sink_update_requested_latency(pa_sink
*s
) {
156 pa_sink_assert_ref(s
);
157 pa_assert_se(u
= s
->userdata
);
159 /* Just hand this one over to the master sink */
160 pa_sink_input_set_requested_latency_within_thread(
162 pa_sink_get_requested_latency_within_thread(s
));
165 /* Called from I/O thread context */
166 static int sink_input_pop_cb(pa_sink_input
*i
, size_t nbytes
, pa_memchunk
*chunk
) {
173 pa_sink_input_assert_ref(i
);
175 pa_assert_se(u
= i
->userdata
);
177 if (!u
->sink
|| !PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
))
180 while (pa_memblockq_peek(u
->memblockq
, &tchunk
) < 0) {
183 pa_sink_render(u
->sink
, nbytes
, &nchunk
);
184 pa_memblockq_push(u
->memblockq
, &nchunk
);
185 pa_memblock_unref(nchunk
.memblock
);
188 tchunk
.length
= PA_MIN(nbytes
, tchunk
.length
);
189 pa_assert(tchunk
.length
> 0);
191 fs
= pa_frame_size(&i
->sample_spec
);
192 n
= PA_MIN(tchunk
.length
, u
->block_size
) / fs
;
197 chunk
->length
= n
*fs
;
198 chunk
->memblock
= pa_memblock_new(i
->sink
->core
->mempool
, chunk
->length
);
200 pa_memblockq_drop(u
->memblockq
, chunk
->length
);
202 src
= (float*) ((uint8_t*) pa_memblock_acquire(tchunk
.memblock
) + tchunk
.index
);
203 dst
= (float*) pa_memblock_acquire(chunk
->memblock
);
205 for (c
= 0; c
< u
->channels
; c
++) {
206 pa_sample_clamp(PA_SAMPLE_FLOAT32NE
, u
->input
, sizeof(float), src
+c
, u
->channels
*sizeof(float), n
);
207 u
->descriptor
->run(u
->handle
[c
], n
);
208 pa_sample_clamp(PA_SAMPLE_FLOAT32NE
, dst
+c
, u
->channels
*sizeof(float), u
->output
, sizeof(float), n
);
211 pa_memblock_release(tchunk
.memblock
);
212 pa_memblock_release(chunk
->memblock
);
214 pa_memblock_unref(tchunk
.memblock
);
219 /* Called from I/O thread context */
220 static void sink_input_process_rewind_cb(pa_sink_input
*i
, size_t nbytes
) {
223 pa_sink_input_assert_ref(i
);
224 pa_assert_se(u
= i
->userdata
);
225 pa_assert(nbytes
> 0);
227 if (!u
->sink
|| !PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
))
230 if (u
->sink
->thread_info
.rewind_nbytes
> 0) {
231 size_t max_rewrite
, amount
;
233 max_rewrite
= nbytes
+ pa_memblockq_get_length(u
->memblockq
);
234 amount
= PA_MIN(u
->sink
->thread_info
.rewind_nbytes
, max_rewrite
);
235 u
->sink
->thread_info
.rewind_nbytes
= 0;
240 pa_memblockq_seek(u
->memblockq
, - (int64_t) amount
, PA_SEEK_RELATIVE
);
241 pa_sink_process_rewind(u
->sink
, amount
);
243 pa_log_debug("Resetting plugin");
245 /* Reset the plugin */
246 if (u
->descriptor
->deactivate
)
247 for (c
= 0; c
< u
->channels
; c
++)
248 u
->descriptor
->deactivate(u
->handle
[c
]);
249 if (u
->descriptor
->activate
)
250 for (c
= 0; c
< u
->channels
; c
++)
251 u
->descriptor
->activate(u
->handle
[c
]);
255 pa_memblockq_rewind(u
->memblockq
, nbytes
);
258 /* Called from I/O thread context */
259 static void sink_input_update_max_rewind_cb(pa_sink_input
*i
, size_t nbytes
) {
262 pa_sink_input_assert_ref(i
);
263 pa_assert_se(u
= i
->userdata
);
265 if (!u
->sink
|| !PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
))
268 pa_memblockq_set_maxrewind(u
->memblockq
, nbytes
);
269 pa_sink_set_max_rewind(u
->sink
, nbytes
);
272 /* Called from I/O thread context */
273 static void sink_input_detach_cb(pa_sink_input
*i
) {
276 pa_sink_input_assert_ref(i
);
277 pa_assert_se(u
= i
->userdata
);
279 if (!u
->sink
|| !PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
))
282 pa_sink_detach_within_thread(u
->sink
);
283 pa_sink_set_asyncmsgq(u
->sink
, NULL
);
284 pa_sink_set_rtpoll(u
->sink
, NULL
);
287 /* Called from I/O thread context */
288 static void sink_input_attach_cb(pa_sink_input
*i
) {
291 pa_sink_input_assert_ref(i
);
292 pa_assert_se(u
= i
->userdata
);
294 if (!u
->sink
|| !PA_SINK_IS_OPENED(u
->sink
->thread_info
.state
))
297 pa_sink_set_asyncmsgq(u
->sink
, i
->sink
->asyncmsgq
);
298 pa_sink_set_rtpoll(u
->sink
, i
->sink
->rtpoll
);
299 pa_sink_attach_within_thread(u
->sink
);
301 pa_sink_set_latency_range(u
->sink
, u
->master
->min_latency
, u
->master
->max_latency
);
304 /* Called from main context */
305 static void sink_input_kill_cb(pa_sink_input
*i
) {
308 pa_sink_input_assert_ref(i
);
309 pa_assert_se(u
= i
->userdata
);
311 pa_sink_unlink(u
->sink
);
312 pa_sink_input_unlink(u
->sink_input
);
314 pa_sink_unref(u
->sink
);
316 pa_sink_input_unref(u
->sink_input
);
317 u
->sink_input
= NULL
;
319 pa_module_unload_request(u
->module
);
322 /* Called from IO thread context */
323 static void sink_input_state_change_cb(pa_sink_input
*i
, pa_sink_input_state_t state
) {
326 pa_sink_input_assert_ref(i
);
327 pa_assert_se(u
= i
->userdata
);
329 /* If we are added for the first time, ask for a rewinding so that
330 * we are heard right-away. */
331 if (PA_SINK_INPUT_IS_LINKED(state
) &&
332 i
->thread_info
.state
== PA_SINK_INPUT_INIT
) {
333 pa_log_debug("Requesting rewind due to state change.");
334 pa_sink_input_request_rewind(i
, 0, FALSE
, TRUE
);
338 int pa__init(pa_module
*m
) {
346 pa_sink_input_new_data sink_input_data
;
347 pa_sink_new_data sink_data
;
348 const char *plugin
, *label
;
349 LADSPA_Descriptor_Function descriptor_func
;
350 const char *e
, *cdata
;
351 const LADSPA_Descriptor
*d
;
352 unsigned long input_port
, output_port
, p
, j
, n_control
;
354 pa_bool_t
*use_default
= NULL
;
358 pa_assert(sizeof(LADSPA_Data
) == sizeof(float));
360 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
361 pa_log("Failed to parse module arguments.");
365 if (!(master
= pa_namereg_get(m
->core
, pa_modargs_get_value(ma
, "master", NULL
), PA_NAMEREG_SINK
, 1))) {
366 pa_log("Master sink not found");
370 ss
= master
->sample_spec
;
371 ss
.format
= PA_SAMPLE_FLOAT32
;
372 map
= master
->channel_map
;
373 if (pa_modargs_get_sample_spec_and_channel_map(ma
, &ss
, &map
, PA_CHANNEL_MAP_DEFAULT
) < 0) {
374 pa_log("Invalid sample format specification or channel map");
378 if (!(plugin
= pa_modargs_get_value(ma
, "plugin", NULL
))) {
379 pa_log("Missing LADSPA plugin name");
383 if (!(label
= pa_modargs_get_value(ma
, "label", NULL
))) {
384 pa_log("Missing LADSPA plugin label");
388 cdata
= pa_modargs_get_value(ma
, "control", NULL
);
390 u
= pa_xnew0(struct userdata
, 1);
396 u
->sink_input
= NULL
;
397 u
->memblockq
= pa_memblockq_new(0, MEMBLOCKQ_MAXLENGTH
, 0, pa_frame_size(&ss
), 1, 1, 0, NULL
);
399 if (!(e
= getenv("LADSPA_PATH")))
402 /* FIXME: This is not exactly thread safe */
403 t
= pa_xstrdup(lt_dlgetsearchpath());
404 lt_dlsetsearchpath(e
);
405 m
->dl
= lt_dlopenext(plugin
);
406 lt_dlsetsearchpath(t
);
410 pa_log("Failed to load LADSPA plugin: %s", lt_dlerror());
414 if (!(descriptor_func
= (LADSPA_Descriptor_Function
) pa_load_sym(m
->dl
, NULL
, "ladspa_descriptor"))) {
415 pa_log("LADSPA module lacks ladspa_descriptor() symbol.");
421 if (!(d
= descriptor_func(j
))) {
422 pa_log("Failed to find plugin label '%s' in plugin '%s'.", label
, plugin
);
426 if (strcmp(d
->Label
, label
) == 0)
432 pa_log_debug("Module: %s", plugin
);
433 pa_log_debug("Label: %s", d
->Label
);
434 pa_log_debug("Unique ID: %lu", d
->UniqueID
);
435 pa_log_debug("Name: %s", d
->Name
);
436 pa_log_debug("Maker: %s", d
->Maker
);
437 pa_log_debug("Copyright: %s", d
->Copyright
);
439 input_port
= output_port
= (unsigned long) -1;
442 for (p
= 0; p
< d
->PortCount
; p
++) {
444 if (LADSPA_IS_PORT_INPUT(d
->PortDescriptors
[p
]) && LADSPA_IS_PORT_AUDIO(d
->PortDescriptors
[p
])) {
446 if (strcmp(d
->PortNames
[p
], "Input") == 0) {
447 pa_assert(input_port
== (unsigned long) -1);
450 pa_log("Found audio input port on plugin we cannot handle: %s", d
->PortNames
[p
]);
454 } else if (LADSPA_IS_PORT_OUTPUT(d
->PortDescriptors
[p
]) && LADSPA_IS_PORT_AUDIO(d
->PortDescriptors
[p
])) {
456 if (strcmp(d
->PortNames
[p
], "Output") == 0) {
457 pa_assert(output_port
== (unsigned long) -1);
460 pa_log("Found audio output port on plugin we cannot handle: %s", d
->PortNames
[p
]);
464 } else if (LADSPA_IS_PORT_INPUT(d
->PortDescriptors
[p
]) && LADSPA_IS_PORT_CONTROL(d
->PortDescriptors
[p
]))
467 pa_assert(LADSPA_IS_PORT_OUTPUT(d
->PortDescriptors
[p
]) && LADSPA_IS_PORT_CONTROL(d
->PortDescriptors
[p
]));
468 pa_log_debug("Ignored control output port \"%s\".", d
->PortNames
[p
]);
472 if ((input_port
== (unsigned long) -1) || (output_port
== (unsigned long) -1)) {
473 pa_log("Failed to identify input and output ports. "
474 "Right now this module can only deal with plugins which provide an 'Input' and an 'Output' audio port. "
479 u
->block_size
= pa_frame_align(pa_mempool_block_size_max(m
->core
->mempool
), &ss
);
481 u
->input
= (LADSPA_Data
*) pa_xnew(uint8_t, u
->block_size
);
482 if (LADSPA_IS_INPLACE_BROKEN(d
->Properties
))
483 u
->output
= (LADSPA_Data
*) pa_xnew(uint8_t, u
->block_size
);
485 u
->output
= u
->input
;
487 u
->channels
= ss
.channels
;
489 for (c
= 0; c
< ss
.channels
; c
++) {
490 if (!(u
->handle
[c
] = d
->instantiate(d
, ss
.rate
))) {
491 pa_log("Failed to instantiate plugin %s with label %s for channel %i", plugin
, d
->Label
, c
);
495 d
->connect_port(u
->handle
[c
], input_port
, u
->input
);
496 d
->connect_port(u
->handle
[c
], output_port
, u
->output
);
499 if (!cdata
&& n_control
> 0) {
500 pa_log("This plugin requires specification of %lu control parameters.", n_control
);
505 const char *state
= NULL
;
509 u
->control
= pa_xnew(LADSPA_Data
, n_control
);
510 use_default
= pa_xnew(pa_bool_t
, n_control
);
513 while ((k
= pa_split(cdata
, ",", &state
)) && p
< n_control
) {
517 use_default
[p
++] = TRUE
;
522 if (pa_atod(k
, &f
) < 0) {
523 pa_log("Failed to parse control value '%s'", k
);
530 use_default
[p
] = FALSE
;
534 /* The previous loop doesn't take the last control value into account
535 if it is left empty, so we do it here. */
536 if (*cdata
== 0 || cdata
[strlen(cdata
) - 1] == ',') {
538 use_default
[p
] = TRUE
;
542 if (p
> n_control
|| k
) {
543 pa_log("Too many control values passed, %lu expected.", n_control
);
549 pa_log("Not enough control values passed, %lu expected, %lu passed.", n_control
, p
);
554 for (p
= 0; p
< d
->PortCount
; p
++) {
555 LADSPA_PortRangeHintDescriptor hint
= d
->PortRangeHints
[p
].HintDescriptor
;
557 if (!LADSPA_IS_PORT_CONTROL(d
->PortDescriptors
[p
]))
560 if (LADSPA_IS_PORT_OUTPUT(d
->PortDescriptors
[p
])) {
561 for (c
= 0; c
< ss
.channels
; c
++)
562 d
->connect_port(u
->handle
[c
], p
, &u
->control_out
);
566 pa_assert(h
< n_control
);
568 if (use_default
[h
]) {
569 LADSPA_Data lower
, upper
;
571 if (!LADSPA_IS_HINT_HAS_DEFAULT(hint
)) {
572 pa_log("Control port value left empty but plugin defines no default.");
576 lower
= d
->PortRangeHints
[p
].LowerBound
;
577 upper
= d
->PortRangeHints
[p
].UpperBound
;
579 if (LADSPA_IS_HINT_SAMPLE_RATE(hint
)) {
584 switch (hint
& LADSPA_HINT_DEFAULT_MASK
) {
586 case LADSPA_HINT_DEFAULT_MINIMUM
:
587 u
->control
[h
] = lower
;
590 case LADSPA_HINT_DEFAULT_MAXIMUM
:
591 u
->control
[h
] = upper
;
594 case LADSPA_HINT_DEFAULT_LOW
:
595 if (LADSPA_IS_HINT_LOGARITHMIC(hint
))
596 u
->control
[h
] = exp(log(lower
) * 0.75 + log(upper
) * 0.25);
598 u
->control
[h
] = lower
* 0.75 + upper
* 0.25;
601 case LADSPA_HINT_DEFAULT_MIDDLE
:
602 if (LADSPA_IS_HINT_LOGARITHMIC(hint
))
603 u
->control
[h
] = exp(log(lower
) * 0.5 + log(upper
) * 0.5);
605 u
->control
[h
] = lower
* 0.5 + upper
* 0.5;
608 case LADSPA_HINT_DEFAULT_HIGH
:
609 if (LADSPA_IS_HINT_LOGARITHMIC(hint
))
610 u
->control
[h
] = exp(log(lower
) * 0.25 + log(upper
) * 0.75);
612 u
->control
[h
] = lower
* 0.25 + upper
* 0.75;
615 case LADSPA_HINT_DEFAULT_0
:
619 case LADSPA_HINT_DEFAULT_1
:
623 case LADSPA_HINT_DEFAULT_100
:
627 case LADSPA_HINT_DEFAULT_440
:
632 pa_assert_not_reached();
636 if (LADSPA_IS_HINT_INTEGER(hint
))
637 u
->control
[h
] = roundf(u
->control
[h
]);
639 pa_log_debug("Binding %f to port %s", u
->control
[h
], d
->PortNames
[p
]);
641 for (c
= 0; c
< ss
.channels
; c
++)
642 d
->connect_port(u
->handle
[c
], p
, &u
->control
[h
]);
647 pa_assert(h
== n_control
);
651 for (c
= 0; c
< u
->channels
; c
++)
652 d
->activate(u
->handle
[c
]);
655 pa_sink_new_data_init(&sink_data
);
656 sink_data
.driver
= __FILE__
;
657 sink_data
.module
= m
;
658 if (!(sink_data
.name
= pa_xstrdup(pa_modargs_get_value(ma
, "sink_name", NULL
))))
659 sink_data
.name
= pa_sprintf_malloc("%s.ladspa", master
->name
);
660 sink_data
.namereg_fail
= FALSE
;
661 pa_sink_new_data_set_sample_spec(&sink_data
, &ss
);
662 pa_sink_new_data_set_channel_map(&sink_data
, &map
);
663 z
= pa_proplist_gets(master
->proplist
, PA_PROP_DEVICE_DESCRIPTION
);
664 pa_proplist_setf(sink_data
.proplist
, PA_PROP_DEVICE_DESCRIPTION
, "LADSPA Plugin %s on %s", label
, z
? z
: master
->name
);
665 pa_proplist_sets(sink_data
.proplist
, PA_PROP_DEVICE_MASTER_DEVICE
, master
->name
);
666 pa_proplist_sets(sink_data
.proplist
, PA_PROP_DEVICE_CLASS
, "filter");
667 pa_proplist_sets(sink_data
.proplist
, "device.ladspa.module", plugin
);
668 pa_proplist_sets(sink_data
.proplist
, "device.ladspa.label", d
->Label
);
669 pa_proplist_sets(sink_data
.proplist
, "device.ladspa.name", d
->Name
);
670 pa_proplist_sets(sink_data
.proplist
, "device.ladspa.maker", d
->Maker
);
671 pa_proplist_sets(sink_data
.proplist
, "device.ladspa.copyright", d
->Copyright
);
672 pa_proplist_setf(sink_data
.proplist
, "device.ladspa.unique_id", "%lu", (unsigned long) d
->UniqueID
);
674 u
->sink
= pa_sink_new(m
->core
, &sink_data
, PA_SINK_LATENCY
);
675 pa_sink_new_data_done(&sink_data
);
678 pa_log("Failed to create sink.");
682 u
->sink
->parent
.process_msg
= sink_process_msg
;
683 u
->sink
->set_state
= sink_set_state
;
684 u
->sink
->update_requested_latency
= sink_update_requested_latency
;
685 u
->sink
->request_rewind
= sink_request_rewind
;
686 u
->sink
->userdata
= u
;
688 pa_sink_set_asyncmsgq(u
->sink
, master
->asyncmsgq
);
689 pa_sink_set_rtpoll(u
->sink
, master
->rtpoll
);
691 /* Create sink input */
692 pa_sink_input_new_data_init(&sink_input_data
);
693 sink_input_data
.driver
= __FILE__
;
694 sink_input_data
.module
= m
;
695 sink_input_data
.sink
= u
->master
;
696 pa_proplist_sets(sink_input_data
.proplist
, PA_PROP_MEDIA_NAME
, "LADSPA Stream");
697 pa_proplist_sets(sink_input_data
.proplist
, PA_PROP_MEDIA_ROLE
, "filter");
698 pa_sink_input_new_data_set_sample_spec(&sink_input_data
, &ss
);
699 pa_sink_input_new_data_set_channel_map(&sink_input_data
, &map
);
701 u
->sink_input
= pa_sink_input_new(m
->core
, &sink_input_data
, PA_SINK_INPUT_DONT_MOVE
);
702 pa_sink_input_new_data_done(&sink_input_data
);
707 u
->sink_input
->pop
= sink_input_pop_cb
;
708 u
->sink_input
->process_rewind
= sink_input_process_rewind_cb
;
709 u
->sink_input
->update_max_rewind
= sink_input_update_max_rewind_cb
;
710 u
->sink_input
->kill
= sink_input_kill_cb
;
711 u
->sink_input
->attach
= sink_input_attach_cb
;
712 u
->sink_input
->detach
= sink_input_detach_cb
;
713 u
->sink_input
->state_change
= sink_input_state_change_cb
;
714 u
->sink_input
->userdata
= u
;
716 pa_sink_put(u
->sink
);
717 pa_sink_input_put(u
->sink_input
);
721 pa_xfree(use_default
);
729 pa_xfree(use_default
);
736 void pa__done(pa_module
*m
) {
742 if (!(u
= m
->userdata
))
746 pa_sink_unlink(u
->sink
);
747 pa_sink_unref(u
->sink
);
751 pa_sink_input_unlink(u
->sink_input
);
752 pa_sink_input_unref(u
->sink_input
);
755 for (c
= 0; c
< u
->channels
; c
++)
757 if (u
->descriptor
->deactivate
)
758 u
->descriptor
->deactivate(u
->handle
[c
]);
759 u
->descriptor
->cleanup(u
->handle
[c
]);
762 if (u
->output
!= u
->input
)
766 pa_memblockq_free(u
->memblockq
);
770 pa_xfree(u
->control
);