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
|
/**
* @file audiounit.c AudioUnit sound driver
*
* Copyright (C) 2010 Creytiv.com
*/
#include <AudioUnit/AudioUnit.h>
#include <AudioToolbox/AudioToolbox.h>
#include <re.h>
#include <baresip.h>
#include "audiounit.h"
/**
* @defgroup audiounit audiounit
*
* Audio driver module for OSX/iOS AudioUnit
*/
AudioComponent output_comp = NULL;
static struct auplay *auplay;
static struct ausrc *ausrc;
#if TARGET_OS_IPHONE
static void interruptionListener(void *data, UInt32 inInterruptionState)
{
(void)data;
if (inInterruptionState == kAudioSessionBeginInterruption) {
info("audiounit: interrupt Begin\n");
audiosess_interrupt(true);
}
else if (inInterruptionState == kAudioSessionEndInterruption) {
info("audiounit: interrupt End\n");
audiosess_interrupt(false);
}
}
#endif
static int module_init(void)
{
AudioComponentDescription desc;
int err;
#if TARGET_OS_IPHONE
OSStatus ret;
ret = AudioSessionInitialize(NULL, NULL, interruptionListener, 0);
if (ret && ret != kAudioSessionAlreadyInitialized) {
warning("audiounit: AudioSessionInitialize: %d\n", ret);
return ENODEV;
}
#endif
desc.componentType = kAudioUnitType_Output;
#if TARGET_OS_IPHONE
desc.componentSubType = kAudioUnitSubType_VoiceProcessingIO;
#else
desc.componentSubType = kAudioUnitSubType_HALOutput;
#endif
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
desc.componentFlags = 0;
desc.componentFlagsMask = 0;
output_comp = AudioComponentFindNext(NULL, &desc);
if (!output_comp) {
warning("audiounit: Voice Processing I/O not found\n");
return ENOENT;
}
err = auplay_register(&auplay, baresip_auplayl(),
"audiounit", audiounit_player_alloc);
err |= ausrc_register(&ausrc, baresip_ausrcl(),
"audiounit", audiounit_recorder_alloc);
return 0;
}
static int module_close(void)
{
ausrc = mem_deref(ausrc);
auplay = mem_deref(auplay);
return 0;
}
EXPORT_SYM const struct mod_export DECL_EXPORTS(audiounit) = {
"audiounit",
"audio",
module_init,
module_close,
};
|
