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
|
#include "sound.h"
#include "common/apple/cf_helpers.h"
#include <CoreAudio/CoreAudio.h>
#include <AvailabilityMacros.h>
#ifndef MAC_OS_VERSION_12_0
#define kAudioObjectPropertyElementMain kAudioObjectPropertyElementMaster
#endif
const char* ffDetectSound(FFSoundOptions* options, FFlist* devices /* List of FFSoundDevice */) {
AudioDeviceID mainDeviceId;
UInt32 dataSize = sizeof(mainDeviceId);
if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &(AudioObjectPropertyAddress) { kAudioHardwarePropertyDefaultOutputDevice, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &mainDeviceId) != kAudioHardwareNoError) {
return "AudioObjectGetPropertyData(kAudioHardwarePropertyDefaultOutputDevice) failed";
}
AudioObjectID deviceIds[32] = {};
if (options->soundType & FF_SOUND_TYPE_MAIN) {
deviceIds[0] = mainDeviceId;
dataSize = sizeof(mainDeviceId);
} else {
dataSize = sizeof(deviceIds);
if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &(AudioObjectPropertyAddress) { kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &deviceIds) != kAudioHardwareNoError) {
return "AudioObjectGetPropertyData(kAudioHardwarePropertyDevices) failed";
}
}
for (uint32_t index = 0, length = dataSize / sizeof(*deviceIds); index < length; ++index) {
AudioDeviceID deviceId = deviceIds[index];
// Ignore input devices
if (AudioObjectGetPropertyDataSize(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyStreams, kAudioObjectPropertyScopeInput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize) == kAudioHardwareNoError && dataSize > 0) {
continue;
}
uint32_t dataSource;
dataSize = sizeof(dataSource);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyDataSource, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &dataSource) == kAudioHardwareNoError && dataSource == 'hdpn') {
uint32_t connected;
dataSize = sizeof(connected);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyJackIsConnected, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &connected) == kAudioHardwareNoError) {
if (!connected) {
continue;
}
}
}
uint32_t active = true;
dataSize = sizeof(active);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyDeviceIsAlive, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &active) == kAudioHardwareNoError) {
if ((options->soundType & FF_SOUND_TYPE_ACTIVE) && !active) {
continue;
}
}
FFSoundDevice* device = FF_LIST_ADD(FFSoundDevice, *devices);
device->type = (deviceId == mainDeviceId ? FF_SOUND_TYPE_MAIN : FF_SOUND_TYPE_NONE) |
(active ? FF_SOUND_TYPE_ACTIVE : FF_SOUND_TYPE_NONE);
device->volume = FF_SOUND_VOLUME_UNKNOWN;
ffStrbufInit(&device->identifier);
ffStrbufInit(&device->name);
ffStrbufInitStatic(&device->platformApi, "Core Audio");
FF_CFTYPE_AUTO_RELEASE CFStringRef uid = NULL;
dataSize = sizeof(uid);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyDeviceUID, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &uid) == kAudioHardwareNoError) {
ffCfStrGetString(uid, &device->identifier);
} else {
ffStrbufAppendF(&device->identifier, "ID-%u", (unsigned) deviceId);
}
FF_CFTYPE_AUTO_RELEASE CFStringRef name = NULL;
dataSize = sizeof(name);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioObjectPropertyName, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &name) == kAudioHardwareNoError) {
ffCfStrGetString(name, &device->name);
} else {
ffStrbufSet(&device->name, &device->identifier);
}
uint32_t muted;
dataSize = sizeof(muted);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyMute, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &muted) != kAudioHardwareNoError) {
muted = false; // Device may not support volume control
}
if (muted) {
device->volume = 0;
} else {
float volume;
dataSize = sizeof(volume);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyVolumeScalar, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, &volume) == kAudioHardwareNoError) {
device->volume = (uint8_t) (volume * 100 + 0.5);
} else {
// Try detecting volume from channels
uint32_t channels[2];
dataSize = sizeof(channels);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyPreferredChannelsForStereo, kAudioObjectPropertyScopeOutput, kAudioObjectPropertyElementMain }, 0, NULL, &dataSize, channels) == kAudioHardwareNoError) {
dataSize = sizeof(volume);
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyVolumeScalar, kAudioObjectPropertyScopeOutput, channels[0] }, 0, NULL, &dataSize, &volume) == kAudioHardwareNoError) {
float temp;
if (AudioObjectGetPropertyData(deviceId, &(AudioObjectPropertyAddress) { kAudioDevicePropertyVolumeScalar, kAudioObjectPropertyScopeOutput, channels[1] }, 0, NULL, &dataSize, &temp) == kAudioHardwareNoError) {
device->volume = (uint8_t) ((volume + temp) / 2 * 100 + 0.5);
}
}
}
}
}
}
return NULL;
}
|
