4 This file is part of polypaudio.
6 polypaudio 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 polypaudio 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 polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include <polyp/utf8.h>
32 #include <polyp/xmalloc.h>
34 #include <polypcore/core-subscribe.h>
35 #include <polypcore/log.h>
37 #include "source-output.h"
39 #define CHECK_VALIDITY_RETURN_NULL(condition) \
45 pa_source_output
* pa_source_output_new(
49 const pa_sample_spec
*spec
,
50 const pa_channel_map
*map
,
51 int resample_method
) {
54 pa_resampler
*resampler
= NULL
;
61 assert(s
->state
== PA_SOURCE_RUNNING
);
63 CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec
));
66 map
= pa_channel_map_init_auto(&tmap
, spec
->channels
, PA_CHANNEL_MAP_DEFAULT
);
68 CHECK_VALIDITY_RETURN_NULL(map
&& pa_channel_map_valid(map
));
69 CHECK_VALIDITY_RETURN_NULL(map
->channels
== spec
->channels
);
70 CHECK_VALIDITY_RETURN_NULL(!driver
|| pa_utf8_valid(driver
));
71 CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name
));
73 if (pa_idxset_size(s
->outputs
) >= PA_MAX_OUTPUTS_PER_SOURCE
) {
74 pa_log(__FILE__
": Failed to create source output: too many outputs per source.");
78 if (resample_method
== PA_RESAMPLER_INVALID
)
79 resample_method
= s
->core
->resample_method
;
81 if (!pa_sample_spec_equal(&s
->sample_spec
, spec
) || !pa_channel_map_equal(&s
->channel_map
, map
))
82 if (!(resampler
= pa_resampler_new(&s
->sample_spec
, &s
->channel_map
, spec
, map
, s
->core
->memblock_stat
, resample_method
)))
85 o
= pa_xnew(pa_source_output
, 1);
87 o
->state
= PA_SOURCE_OUTPUT_RUNNING
;
88 o
->name
= pa_xstrdup(name
);
89 o
->driver
= pa_xstrdup(driver
);
94 o
->sample_spec
= *spec
;
95 o
->channel_map
= *map
;
99 o
->get_latency
= NULL
;
102 o
->resampler
= resampler
;
105 r
= pa_idxset_put(s
->core
->source_outputs
, o
, &o
->index
);
106 assert(r
== 0 && o
->index
!= PA_IDXSET_INVALID
);
107 r
= pa_idxset_put(s
->outputs
, o
, NULL
);
110 pa_sample_spec_snprint(st
, sizeof(st
), spec
);
111 pa_log_info(__FILE__
": created %u \"%s\" on %u with sample spec \"%s\"", o
->index
, o
->name
, s
->index
, st
);
113 pa_subscription_post(s
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_NEW
, o
->index
);
118 void pa_source_output_disconnect(pa_source_output
*o
) {
120 assert(o
->state
!= PA_SOURCE_OUTPUT_DISCONNECTED
);
122 assert(o
->source
->core
);
124 pa_idxset_remove_by_data(o
->source
->core
->source_outputs
, o
, NULL
);
125 pa_idxset_remove_by_data(o
->source
->outputs
, o
, NULL
);
127 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_REMOVE
, o
->index
);
132 o
->get_latency
= NULL
;
134 o
->state
= PA_SOURCE_OUTPUT_DISCONNECTED
;
137 static void source_output_free(pa_source_output
* o
) {
140 if (o
->state
!= PA_SOURCE_OUTPUT_DISCONNECTED
)
141 pa_source_output_disconnect(o
);
143 pa_log_info(__FILE__
": freed %u \"%s\"", o
->index
, o
->name
);
146 pa_resampler_free(o
->resampler
);
153 void pa_source_output_unref(pa_source_output
* o
) {
158 source_output_free(o
);
161 pa_source_output
* pa_source_output_ref(pa_source_output
*o
) {
170 void pa_source_output_kill(pa_source_output
*o
) {
178 void pa_source_output_push(pa_source_output
*o
, const pa_memchunk
*chunk
) {
183 assert(chunk
->length
);
186 if (o
->state
== PA_SOURCE_OUTPUT_CORKED
)
194 pa_resampler_run(o
->resampler
, chunk
, &rchunk
);
198 assert(rchunk
.memblock
);
200 pa_memblock_unref(rchunk
.memblock
);
203 void pa_source_output_set_name(pa_source_output
*o
, const char *name
) {
208 o
->name
= pa_xstrdup(name
);
210 pa_subscription_post(o
->source
->core
, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT
|PA_SUBSCRIPTION_EVENT_CHANGE
, o
->index
);
213 pa_usec_t
pa_source_output_get_latency(pa_source_output
*o
) {
218 return o
->get_latency(o
);
223 void pa_source_output_cork(pa_source_output
*o
, int b
) {
227 if (o
->state
== PA_SOURCE_OUTPUT_DISCONNECTED
)
230 o
->state
= b
? PA_SOURCE_OUTPUT_CORKED
: PA_SOURCE_OUTPUT_RUNNING
;
233 pa_resample_method_t
pa_source_output_get_resample_method(pa_source_output
*o
) {
238 return PA_RESAMPLER_INVALID
;
240 return pa_resampler_get_method(o
->resampler
);