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
|
/* $Id$ */
/***
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) {
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 (!pa_sample_spec_equal(&s->sample_spec, spec))
if (!(resampler = pa_resampler_new(&s->sample_spec, spec, s->core->memblock_stat)))
return NULL;
o = pa_xmalloc(sizeof(struct pa_source_output));
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->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_free(struct pa_source_output* o) {
assert(o);
assert(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);
if (o->resampler)
pa_resampler_free(o->resampler);
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
pa_xfree(o->name);
pa_xfree(o);
}
void pa_source_output_kill(struct pa_source_output*i) {
assert(i);
if (i->kill)
i->kill(i);
}
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->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);
}
|
