4 This file is part of PulseAudio.
6 Copyright 2004-2006 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
32 #include <pulse/utf8.h>
33 #include <pulse/xmalloc.h>
35 #include <pulsecore/core-subscribe.h>
36 #include <pulsecore/log.h>
37 #include <pulsecore/namereg.h>
39 #include "source-output.h"
41 static PA_DEFINE_CHECK_TYPE(pa_source_output
, pa_msgobject
);
43 static void source_output_free(pa_object
* mo
);
45 pa_source_output_new_data
* pa_source_output_new_data_init(pa_source_output_new_data
*data
) {
48 memset(data
, 0, sizeof(*data
));
49 data
->resample_method
= PA_RESAMPLER_INVALID
;
53 void pa_source_output_new_data_set_channel_map(pa_source_output_new_data
*data
, const pa_channel_map
*map
) {
56 if ((data
->channel_map_is_set
= !!map
))
57 data
->channel_map
= *map
;
60 void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data
*data
, const pa_sample_spec
*spec
) {
63 if ((data
->sample_spec_is_set
= !!spec
))
64 data
->sample_spec
= *spec
;
67 pa_source_output
* pa_source_output_new(
69 pa_source_output_new_data
*data
,
70 pa_source_output_flags_t flags
) {
73 pa_resampler
*resampler
= NULL
;
74 char st
[PA_SAMPLE_SPEC_SNPRINT_MAX
];
79 if (pa_hook_fire(&core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_NEW
], data
) < 0)
82 pa_return_null_if_fail(!data
->driver
|| pa_utf8_valid(data
->driver
));
83 pa_return_null_if_fail(!data
->name
|| pa_utf8_valid(data
->name
));
86 data
->source
= pa_namereg_get(core
, NULL
, PA_NAMEREG_SOURCE
, 1);
88 pa_return_null_if_fail(data
->source
);
89 pa_return_null_if_fail(pa_source_get_state(data
->source
) != PA_SOURCE_UNLINKED
);
91 if (!data
->sample_spec_is_set
)
92 data
->sample_spec
= data
->source
->sample_spec
;
94 pa_return_null_if_fail(pa_sample_spec_valid(&data
->sample_spec
));
96 if (!data
->channel_map_is_set
) {
97 if (data
->source
->channel_map
.channels
== data
->sample_spec
.channels
)
98 data
->channel_map
= data
->source
->channel_map
;
100 pa_channel_map_init_auto(&data
->channel_map
, data
->sample_spec
.channels
, PA_CHANNEL_MAP_DEFAULT
);
103 pa_return_null_if_fail(pa_channel_map_valid(&data
->channel_map
));
104 pa_return_null_if_fail(data
->channel_map
.channels
== data
->sample_spec
.channels
);
106 if (data
->resample_method
== PA_RESAMPLER_INVALID
)
107 data
->resample_method
= core
->resample_method
;
109 pa_return_null_if_fail(data
->resample_method
< PA_RESAMPLER_MAX
);
111 if (pa_idxset_size(data
->source
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
112 pa_log("Failed to create source output: too many outputs per source.");
116 if ((flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
117 !pa_sample_spec_equal(&data
->sample_spec
, &data
->source
->sample_spec
) ||
118 !pa_channel_map_equal(&data
->channel_map
, &data
->source
->channel_map
)) {
120 if (!(resampler
= pa_resampler_new(
122 &data
->source
->sample_spec
, &data
->source
->channel_map
,
123 &data
->sample_spec
, &data
->channel_map
,
124 data
->resample_method
,
125 !!(flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
)))) {
126 pa_log_warn("Unsupported resampling operation.");
130 data
->resample_method
= pa_resampler_get_method(resampler
);
133 o
= pa_msgobject_new(pa_source_output
);
134 o
->parent
.parent
.free
= source_output_free
;
135 o
->parent
.process_msg
= pa_source_output_process_msg
;
138 o
->state
= PA_SOURCE_OUTPUT_INIT
;
140 o
->name
= pa_xstrdup(data
->name
);
141 o
->driver
= pa_xstrdup(data
->driver
);
142 o
->module
= data
->module
;
143 o
->source
= data
->source
;
144 o
->client
= data
->client
;
146 o
->resample_method
= data
->resample_method
;
147 o
->sample_spec
= data
->sample_spec
;
148 o
->channel_map
= data
->channel_map
;
152 o
->get_latency
= NULL
;
158 o
->thread_info
.state
= o
->state
;
159 o
->thread_info
.attached
= FALSE
;
160 o
->thread_info
.sample_spec
= o
->sample_spec
;
161 o
->thread_info
.resampler
= resampler
;
163 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
164 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
166 pa_log_info("Created output %u \"%s\" on %s with sample spec %s",
170 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
));
172 /* Don't forget to call pa_source_output_put! */
177 static int source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
180 if (o
->state
== state
)
183 if (pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
) < 0)
186 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
187 pa_assert_se(o
->source
->n_corked
-- >= 1);
188 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
189 o
->source
->n_corked
++;
191 pa_source_update_status(o
->source
);
198 void pa_source_output_unlink(pa_source_output
*o
) {
202 /* See pa_sink_unlink() for a couple of comments how this function
205 pa_source_output_ref(o
);
207 linked
= PA_SOURCE_OUTPUT_LINKED(o
->state
);
210 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
212 pa_idxset_remove_by_data(o
->source
->core
->source_outputs
, o
, NULL
);
213 if (pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
))
214 pa_source_output_unref(o
);
217 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
);
218 source_output_set_state(o
, PA_SOURCE_OUTPUT_UNLINKED
);
219 pa_source_update_status(o
->source
);
221 o
->state
= PA_SOURCE_OUTPUT_UNLINKED
;
225 o
->get_latency
= NULL
;
231 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
232 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
236 pa_source_output_unref(o
);
239 static void source_output_free(pa_object
* mo
) {
240 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
242 pa_assert(pa_source_output_refcnt(o
) == 0);
244 if (PA_SOURCE_OUTPUT_LINKED(o
->state
))
245 pa_source_output_unlink(o
);
247 pa_log_info("Freeing output %u \"%s\"", o
->index
, o
->name
);
249 pa_assert(!o
->thread_info
.attached
);
251 if (o
->thread_info
.resampler
)
252 pa_resampler_free(o
->thread_info
.resampler
);
259 void pa_source_output_put(pa_source_output
*o
) {
260 pa_source_output_assert_ref(o
);
262 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
265 o
->thread_info
.state
= o
->state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
267 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
)
268 o
->source
->n_corked
++;
270 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
);
271 pa_source_update_status(o
->source
);
273 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
275 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
278 void pa_source_output_kill(pa_source_output
*o
) {
279 pa_source_output_assert_ref(o
);
280 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
286 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
) {
289 pa_source_output_assert_ref(o
);
290 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
292 if (pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, &r
, 0, NULL
) < 0)
296 r
+= o
->get_latency(o
);
301 /* Called from thread context */
302 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
305 pa_source_output_assert_ref(o
);
306 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->thread_info
.state
));
308 pa_assert(chunk
->length
);
310 if (!o
->push
|| o
->state
== PA_SOURCE_OUTPUT_CORKED
)
313 pa_assert(o
->state
== PA_SOURCE_OUTPUT_RUNNING
);
315 if (!o
->thread_info
.resampler
) {
320 pa_resampler_run(o
->thread_info
.resampler
, chunk
, &rchunk
);
324 pa_assert(rchunk
.memblock
);
326 pa_memblock_unref(rchunk
.memblock
);
329 void pa_source_output_cork(pa_source_output
*o
, pa_bool_t b
) {
330 pa_source_output_assert_ref(o
);
331 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
333 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
336 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
337 pa_source_output_assert_ref(o
);
338 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
339 pa_return_val_if_fail(o
->thread_info
.resampler
, -1);
341 if (o
->sample_spec
.rate
== rate
)
344 o
->sample_spec
.rate
= rate
;
346 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
348 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
352 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
353 pa_source_output_assert_ref(o
);
355 if (!o
->name
&& !name
)
358 if (o
->name
&& name
&& !strcmp(o
->name
, name
))
362 o
->name
= pa_xstrdup(name
);
364 if (PA_SOURCE_OUTPUT_LINKED(o
->state
)) {
365 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_NAME_CHANGED
], o
);
366 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
370 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
371 pa_source_output_assert_ref(o
);
373 return o
->resample_method
;
376 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
) {
378 pa_resampler
*new_resampler
= NULL
;
380 pa_source_output_assert_ref(o
);
381 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
382 pa_source_assert_ref(dest
);
389 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
392 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
393 pa_log_warn("Failed to move source output: too many outputs per source.");
397 if (o
->thread_info
.resampler
&&
398 pa_sample_spec_equal(&origin
->sample_spec
, &dest
->sample_spec
) &&
399 pa_channel_map_equal(&origin
->channel_map
, &dest
->channel_map
))
401 /* Try to reuse the old resampler if possible */
402 new_resampler
= o
->thread_info
.resampler
;
404 else if ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
405 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
) ||
406 !pa_channel_map_equal(&o
->channel_map
, &dest
->channel_map
)) {
408 /* Okey, we need a new resampler for the new source */
410 if (!(new_resampler
= pa_resampler_new(
412 &dest
->sample_spec
, &dest
->channel_map
,
413 &o
->sample_spec
, &o
->channel_map
,
415 !!(o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
)))) {
416 pa_log_warn("Unsupported resampling operation.");
421 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE
], o
);
423 /* Okey, let's move it */
424 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
);
426 pa_idxset_remove_by_data(origin
->outputs
, o
, NULL
);
427 pa_idxset_put(dest
->outputs
, o
, NULL
);
430 /* Replace resampler */
431 if (new_resampler
!= o
->thread_info
.resampler
) {
432 if (o
->thread_info
.resampler
)
433 pa_resampler_free(o
->thread_info
.resampler
);
434 o
->thread_info
.resampler
= new_resampler
;
437 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
);
439 pa_source_update_status(origin
);
440 pa_source_update_status(dest
);
442 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_POST
], o
);
444 pa_log_debug("Successfully moved source output %i from %s to %s.", o
->index
, origin
->name
, dest
->name
);
446 /* Notify everyone */
447 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
452 /* Called from thread context */
453 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
454 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
456 pa_source_output_assert_ref(o
);
457 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->thread_info
.state
));
461 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
: {
463 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
464 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
469 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
: {
470 o
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);