1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "source-output.h"
#include "xmalloc.h"
#include "subscribe.h"
#include "log.h"
struct pa_source_output* pa_source_output_new(struct pa_source *s, const char *name, const struct pa_sample_spec *spec, int resample_method) {
struct pa_source_output *o;
struct pa_resampler *resampler = NULL;
int r;
assert(s && spec);
if (pa_idxset_ncontents(s->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
pa_log(__FILE__": Failed to create source output: too many outputs per source.\n");
return NULL;
}
if (resample_method < 0)
resample_method = s->core->resample_method;
if (!pa_sample_spec_equal(&s->sample_spec, spec))
if (!(resampler = pa_resampler_new(&s->sample_spec, spec, s->core->memblock_stat, resample_method)))
return NULL;
o = pa_xmalloc(sizeof(struct pa_source_output));
o->ref = 1;
o->state = PA_SOURCE_OUTPUT_RUNNING;
o->name = pa_xstrdup(name);
o->client = NULL;
o->owner = NULL;
o->source = s;
o->sample_spec = *spec;
o->push = NULL;
o->kill = NULL;
o->userdata = NULL;
o->get_latency = NULL;
o->resampler = resampler;
assert(s->core);
r = pa_idxset_put(s->core->source_outputs, o, &o->index);
assert(r == 0 && o->index != PA_IDXSET_INVALID);
r = pa_idxset_put(s->outputs, o, NULL);
assert(r == 0);
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
return o;
}
void pa_source_output_disconnect(struct pa_source_output*o) {
assert(o && o->state != PA_SOURCE_OUTPUT_DISCONNECTED && o->source && o->source->core);
pa_idxset_remove_by_data(o->source->core->source_outputs, o, NULL);
pa_idxset_remove_by_data(o->source->outputs, o, NULL);
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
o->source = NULL;
o->push = NULL;
o->kill = NULL;
o->state = PA_SOURCE_OUTPUT_DISCONNECTED;
}
static void source_output_free(struct pa_source_output* o) {
assert(o);
if (o->state != PA_SOURCE_OUTPUT_DISCONNECTED)
pa_source_output_disconnect(o);
if (o->resampler)
pa_resampler_free(o->resampler);
pa_xfree(o->name);
pa_xfree(o);
}
void pa_source_output_unref(struct pa_source_output* o) {
assert(o && o->ref >= 1);
if (!(--o->ref))
source_output_free(o);
}
struct pa_source_output* pa_source_output_ref(struct pa_source_output *o) {
assert(o && o->ref >= 1);
o->ref++;
return o;
}
void pa_source_output_kill(struct pa_source_output*o) {
assert(o && o->ref >= 1);
if (o->kill)
o->kill(o);
}
void pa_source_output_push(struct pa_source_output *o, const struct pa_memchunk *chunk) {
struct pa_memchunk rchunk;
assert(o && chunk && chunk->length && o->push);
if (o->state == PA_SOURCE_OUTPUT_CORKED)
return;
if (!o->resampler) {
o->push(o, chunk);
return;
}
pa_resampler_run(o->resampler, chunk, &rchunk);
if (!rchunk.length)
return;
assert(rchunk.memblock);
o->push(o, &rchunk);
pa_memblock_unref(rchunk.memblock);
}
void pa_source_output_set_name(struct pa_source_output *o, const char *name) {
assert(o && o->ref >= 1);
pa_xfree(o->name);
o->name = pa_xstrdup(name);
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
}
pa_usec_t pa_source_output_get_latency(struct pa_source_output *o) {
assert(o && o->ref >= 1);
if (o->get_latency)
return o->get_latency(o);
return 0;
}
void pa_source_output_cork(struct pa_source_output *o, int b) {
assert(o && o->ref >= 1);
if (o->state == PA_SOURCE_OUTPUT_DISCONNECTED)
return;
o->state = b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
}
|
