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
.sample_spec
= o
->sample_spec
;
160 o
->thread_info
.resampler
= resampler
;
162 pa_assert_se(pa_idxset_put(core
->source_outputs
, o
, &o
->index
) == 0);
163 pa_assert_se(pa_idxset_put(o
->source
->outputs
, pa_source_output_ref(o
), NULL
) == 0);
165 pa_log_info("Created output %u \"%s\" on %s with sample spec %s",
169 pa_sample_spec_snprint(st
, sizeof(st
), &o
->sample_spec
));
171 /* Don't forget to call pa_source_output_put! */
176 static int source_output_set_state(pa_source_output
*o
, pa_source_output_state_t state
) {
179 if (o
->state
== state
)
182 if (pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
, PA_UINT_TO_PTR(state
), 0, NULL
) < 0)
185 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
&& state
!= PA_SOURCE_OUTPUT_CORKED
)
186 pa_assert_se(o
->source
->n_corked
-- >= 1);
187 else if (o
->state
!= PA_SOURCE_OUTPUT_CORKED
&& state
== PA_SOURCE_OUTPUT_CORKED
)
188 o
->source
->n_corked
++;
195 void pa_source_output_unlink(pa_source_output
*o
) {
197 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
199 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
], o
);
201 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
);
203 pa_idxset_remove_by_data(o
->source
->core
->source_outputs
, o
, NULL
);
204 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
206 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
208 source_output_set_state(o
, PA_SOURCE_OUTPUT_UNLINKED
);
209 pa_source_update_status(o
->source
);
213 o
->get_latency
= NULL
;
218 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
], o
);
221 pa_source_output_unref(o
);
224 static void source_output_free(pa_object
* mo
) {
225 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
227 pa_assert(pa_source_output_refcnt(o
) == 0);
229 if (PA_SOURCE_OUTPUT_LINKED(o
->state
))
230 pa_source_output_unlink(o
);
232 pa_log_info("Freeing output %u \"%s\"", o
->index
, o
->name
);
234 if (o
->thread_info
.resampler
)
235 pa_resampler_free(o
->thread_info
.resampler
);
242 void pa_source_output_put(pa_source_output
*o
) {
243 pa_source_output_assert_ref(o
);
245 pa_assert(o
->state
== PA_SOURCE_OUTPUT_INIT
);
248 o
->thread_info
.state
= o
->state
= o
->flags
& PA_SOURCE_OUTPUT_START_CORKED
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
250 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
);
251 pa_source_update_status(o
->source
);
253 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
255 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_PUT
], o
);
258 void pa_source_output_kill(pa_source_output
*o
) {
259 pa_source_output_assert_ref(o
);
260 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
266 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
) {
269 pa_source_output_assert_ref(o
);
270 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
272 if (pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY
, &r
, 0, NULL
) < 0)
276 r
+= o
->get_latency(o
);
281 /* Called from thread context */
282 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
285 pa_source_output_assert_ref(o
);
286 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->thread_info
.state
));
288 pa_assert(chunk
->length
);
290 if (!o
->push
|| o
->state
== PA_SOURCE_OUTPUT_CORKED
)
293 pa_assert(o
->state
== PA_SOURCE_OUTPUT_RUNNING
);
295 if (!o
->thread_info
.resampler
) {
300 pa_resampler_run(o
->thread_info
.resampler
, chunk
, &rchunk
);
304 pa_assert(rchunk
.memblock
);
306 pa_memblock_unref(rchunk
.memblock
);
309 void pa_source_output_cork(pa_source_output
*o
, int b
) {
310 pa_source_output_assert_ref(o
);
311 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
313 source_output_set_state(o
, b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
);
316 int pa_source_output_set_rate(pa_source_output
*o
, uint32_t rate
) {
317 pa_source_output_assert_ref(o
);
318 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
319 pa_return_val_if_fail(o
->thread_info
.resampler
, -1);
321 if (o
->sample_spec
.rate
== rate
)
324 o
->sample_spec
.rate
= rate
;
326 pa_asyncmsgq_post(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
), PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
, PA_UINT_TO_PTR(rate
), 0, NULL
, NULL
);
328 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
332 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
333 pa_source_output_assert_ref(o
);
335 if (!o
->name
&& !name
)
338 if (o
->name
&& name
&& !strcmp(o
->name
, name
))
342 o
->name
= pa_xstrdup(name
);
344 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
347 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
348 pa_source_output_assert_ref(o
);
350 return o
->resample_method
;
353 int pa_source_output_move_to(pa_source_output
*o
, pa_source
*dest
) {
355 pa_resampler
*new_resampler
= NULL
;
357 pa_source_output_assert_ref(o
);
358 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->state
));
359 pa_source_assert_ref(dest
);
366 if (o
->flags
& PA_SOURCE_OUTPUT_DONT_MOVE
)
369 if (pa_idxset_size(dest
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
370 pa_log_warn("Failed to move source output: too many outputs per source.");
374 if (o
->thread_info
.resampler
&&
375 pa_sample_spec_equal(&origin
->sample_spec
, &dest
->sample_spec
) &&
376 pa_channel_map_equal(&origin
->channel_map
, &dest
->channel_map
))
378 /* Try to reuse the old resampler if possible */
379 new_resampler
= o
->thread_info
.resampler
;
381 else if ((o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
) ||
382 !pa_sample_spec_equal(&o
->sample_spec
, &dest
->sample_spec
) ||
383 !pa_channel_map_equal(&o
->channel_map
, &dest
->channel_map
)) {
385 /* Okey, we need a new resampler for the new source */
387 if (!(new_resampler
= pa_resampler_new(
389 &dest
->sample_spec
, &dest
->channel_map
,
390 &o
->sample_spec
, &o
->channel_map
,
392 !!(o
->flags
& PA_SOURCE_OUTPUT_VARIABLE_RATE
)))) {
393 pa_log_warn("Unsupported resampling operation.");
398 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE
], o
);
400 /* Okey, let's move it */
401 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_REMOVE_OUTPUT
, o
, 0, NULL
);
403 pa_idxset_remove_by_data(origin
->outputs
, o
, NULL
);
404 pa_idxset_put(dest
->outputs
, o
, NULL
);
407 /* Replace resampler */
408 if (new_resampler
!= o
->thread_info
.resampler
) {
409 if (o
->thread_info
.resampler
)
410 pa_resampler_free(o
->thread_info
.resampler
);
411 o
->thread_info
.resampler
= new_resampler
;
414 pa_asyncmsgq_send(o
->source
->asyncmsgq
, PA_MSGOBJECT(o
->source
), PA_SOURCE_MESSAGE_ADD_OUTPUT
, o
, 0, NULL
);
416 pa_source_update_status(origin
);
417 pa_source_update_status(dest
);
419 pa_hook_fire(&o
->source
->core
->hooks
[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_POST
], o
);
421 pa_log_debug("Successfully moved source output %i from %s to %s.", o
->index
, origin
->name
, dest
->name
);
423 /* Notify everyone */
424 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
429 /* Called from thread context */
430 int pa_source_output_process_msg(pa_msgobject
*mo
, int code
, void *userdata
, int64_t offset
, pa_memchunk
* chunk
) {
431 pa_source_output
*o
= PA_SOURCE_OUTPUT(mo
);
433 pa_source_output_assert_ref(o
);
434 pa_assert(PA_SOURCE_OUTPUT_LINKED(o
->thread_info
.state
));
438 case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE
: {
440 o
->thread_info
.sample_spec
.rate
= PA_PTR_TO_UINT(userdata
);
441 pa_resampler_set_output_rate(o
->thread_info
.resampler
, PA_PTR_TO_UINT(userdata
));
446 case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE
: {
447 o
->thread_info
.state
= PA_PTR_TO_UINT(userdata
);