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Core Audio: Add support for default device detection.

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This commit is contained in:
David Reid
2020-11-04 20:05:23 +10:00
parent 25bd2576bf
commit 61541f7e6d
1 changed files with 52 additions and 19 deletions
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miniaudio.h
+52 -19
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@@ -23588,6 +23588,37 @@ static ma_result ma_set_AudioObject_buffer_size_in_frames(ma_context* pContext,
return MA_SUCCESS;
}
static ma_result ma_find_default_AudioObjectID(ma_context* pContext, ma_device_type deviceType, AudioObjectID* pDeviceObjectID)
{
AudioObjectPropertyAddress propAddressDefaultDevice;
UInt32 defaultDeviceObjectIDSize = sizeof(AudioObjectID);
AudioObjectID defaultDeviceObjectID;
OSStatus status;
MA_ASSERT(pContext != NULL);
MA_ASSERT(pDeviceObjectID != NULL);
/* Safety. */
*pDeviceObjectID = 0;
propAddressDefaultDevice.mScope = kAudioObjectPropertyScopeGlobal;
propAddressDefaultDevice.mElement = kAudioObjectPropertyElementMaster;
if (deviceType == ma_device_type_playback) {
propAddressDefaultDevice.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
} else {
propAddressDefaultDevice.mSelector = kAudioHardwarePropertyDefaultInputDevice;
}
defaultDeviceObjectIDSize = sizeof(AudioObjectID);
status = ((ma_AudioObjectGetPropertyData_proc)pContext->coreaudio.AudioObjectGetPropertyData)(kAudioObjectSystemObject, &propAddressDefaultDevice, 0, NULL, &defaultDeviceObjectIDSize, &defaultDeviceObjectID);
if (status == noErr) {
*pDeviceObjectID = defaultDeviceObjectID;
return MA_SUCCESS;
}
/* If we get here it means we couldn't find the device. */
return MA_NO_DEVICE;
}
static ma_result ma_find_AudioObjectID(ma_context* pContext, ma_device_type deviceType, const ma_device_id* pDeviceID, AudioObjectID* pDeviceObjectID)
{
@@ -23599,25 +23630,7 @@ static ma_result ma_find_AudioObjectID(ma_context* pContext, ma_device_type devi
if (pDeviceID == NULL) {
/* Default device. */
AudioObjectPropertyAddress propAddressDefaultDevice;
UInt32 defaultDeviceObjectIDSize = sizeof(AudioObjectID);
AudioObjectID defaultDeviceObjectID;
OSStatus status;
propAddressDefaultDevice.mScope = kAudioObjectPropertyScopeGlobal;
propAddressDefaultDevice.mElement = kAudioObjectPropertyElementMaster;
if (deviceType == ma_device_type_playback) {
propAddressDefaultDevice.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
} else {
propAddressDefaultDevice.mSelector = kAudioHardwarePropertyDefaultInputDevice;
}
defaultDeviceObjectIDSize = sizeof(AudioObjectID);
status = ((ma_AudioObjectGetPropertyData_proc)pContext->coreaudio.AudioObjectGetPropertyData)(kAudioObjectSystemObject, &propAddressDefaultDevice, 0, NULL, &defaultDeviceObjectIDSize, &defaultDeviceObjectID);
if (status == noErr) {
*pDeviceObjectID = defaultDeviceObjectID;
return MA_SUCCESS;
}
return ma_find_default_AudioObjectID(pContext, deviceType, pDeviceObjectID);
} else {
/* Explicit device. */
UInt32 deviceCount;
@@ -23915,8 +23928,13 @@ static ma_result ma_context_enumerate_devices__coreaudio(ma_context* pContext, m
#if defined(MA_APPLE_DESKTOP)
UInt32 deviceCount;
AudioObjectID* pDeviceObjectIDs;
AudioObjectID defaultDeviceObjectIDPlayback;
AudioObjectID defaultDeviceObjectIDCapture;
ma_result result;
UInt32 iDevice;
ma_find_default_AudioObjectID(pContext, ma_device_type_playback, &defaultDeviceObjectIDPlayback); /* OK if this fails. */
ma_find_default_AudioObjectID(pContext, ma_device_type_capture, &defaultDeviceObjectIDCapture); /* OK if this fails. */
result = ma_get_device_object_ids__coreaudio(pContext, &deviceCount, &pDeviceObjectIDs);
if (result != MA_SUCCESS) {
@@ -23936,11 +23954,19 @@ static ma_result ma_context_enumerate_devices__coreaudio(ma_context* pContext, m
}
if (ma_does_AudioObject_support_playback(pContext, deviceObjectID)) {
if (deviceObjectID == defaultDeviceObjectIDPlayback) {
info._private.isDefault = MA_TRUE;
}
if (!callback(pContext, ma_device_type_playback, &info, pUserData)) {
break;
}
}
if (ma_does_AudioObject_support_capture(pContext, deviceObjectID)) {
if (deviceObjectID == defaultDeviceObjectIDCapture) {
info._private.isDefault = MA_TRUE;
}
if (!callback(pContext, ma_device_type_capture, &info, pUserData)) {
break;
}
@@ -23986,11 +24012,14 @@ static ma_result ma_context_get_device_info__coreaudio(ma_context* pContext, ma_
/* Desktop */
{
AudioObjectID deviceObjectID;
AudioObjectID defaultDeviceObjectID;
UInt32 streamDescriptionCount;
AudioStreamRangedDescription* pStreamDescriptions;
UInt32 iStreamDescription;
UInt32 sampleRateRangeCount;
AudioValueRange* pSampleRateRanges;
ma_find_default_AudioObjectID(pContext, deviceType, &defaultDeviceObjectID); /* OK if this fails. */
result = ma_find_AudioObjectID(pContext, deviceType, pDeviceID, &deviceObjectID);
if (result != MA_SUCCESS) {
@@ -24006,6 +24035,10 @@ static ma_result ma_context_get_device_info__coreaudio(ma_context* pContext, ma_
if (result != MA_SUCCESS) {
return result;
}
if (deviceObjectID == defaultDeviceObjectID) {
pDeviceInfo->_private.isDefault = MA_TRUE;
}
/* Formats. */
result = ma_get_AudioObject_stream_descriptions(pContext, deviceObjectID, deviceType, &streamDescriptionCount, &pStreamDescriptions);