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
|
/* $Id$ */
/***
This file is part of PulseAudio.
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
PulseAudio 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 Lesser General Public License
along with PulseAudio; 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 <stdlib.h>
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <pulse/xmalloc.h>
#include <pulsecore/sink-input.h>
#include <pulsecore/gccmacro.h>
#include "play-memblockq.h"
static void sink_input_kill(pa_sink_input *i) {
pa_memblockq *q;
assert(i);
assert(i->userdata);
q = i->userdata;
pa_sink_input_disconnect(i);
pa_sink_input_unref(i);
pa_memblockq_free(q);
}
static int sink_input_peek(pa_sink_input *i, pa_memchunk *chunk) {
pa_memblockq *q;
assert(i);
assert(chunk);
assert(i->userdata);
q = i->userdata;
return pa_memblockq_peek(q, chunk);
}
static void si_kill(PA_GCC_UNUSED pa_mainloop_api *m, void *i) {
sink_input_kill(i);
}
static void sink_input_drop(pa_sink_input *i, const pa_memchunk*chunk, size_t length) {
pa_memblockq *q;
assert(i);
assert(length > 0);
assert( i->userdata);
q = i->userdata;
pa_memblockq_drop(q, chunk, length);
if (pa_memblockq_get_length(q) <= 0)
pa_mainloop_api_once(i->sink->core->mainloop, si_kill, i);
}
int pa_play_memblockq(
pa_sink *sink,
const char *name,
const pa_sample_spec *ss,
const pa_channel_map *map,
pa_memblockq *q,
pa_cvolume *volume) {
pa_sink_input *si;
pa_sink_input_new_data data;
assert(sink);
assert(ss);
assert(q);
if (pa_memblockq_get_length(q) <= 0) {
pa_memblockq_free(q);
return 0;
}
if (volume && pa_cvolume_is_muted(volume)) {
pa_memblockq_free(q);
return 0;
}
pa_sink_input_new_data_init(&data);
data.sink = sink;
data.name = name;
data.driver = __FILE__;
pa_sink_input_new_data_set_channel_map(&data, map);
pa_sink_input_new_data_set_sample_spec(&data, ss);
pa_sink_input_new_data_set_volume(&data, volume);
if (!(si = pa_sink_input_new(sink->core, &data, 0)))
return -1;
si->peek = sink_input_peek;
si->drop = sink_input_drop;
si->kill = sink_input_kill;
si->userdata = q;
pa_sink_notify(si->sink);
return 0;
}
|
