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Code Issues Packages Projects Releases Wiki Activity

Core Audio: Remove the requirement to link to AudioToolbox.

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This commit is contained in:
David Reid
2018-07-01 19:47:10 +10:00
parent 6ce416bb2a
commit d52e710b7d
1 changed files with 55 additions and 30 deletions
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mini_al.h
+55 -30
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@@ -54,7 +54,8 @@
// //
// Building for macOS // Building for macOS
// ------------------ // ------------------
// The macOS build requires -framework CoreFoundation -framework CoreAudio -framework AudioToolbox. // The macOS build should compile clean without the need to download any dependencies or link to any libraries or
// frameworks.
// //
// Building for Linux // Building for Linux
// ------------------ // ------------------
@@ -1248,6 +1249,7 @@ struct mal_context
mal_proc AudioOutputUnitStop; mal_proc AudioOutputUnitStop;
mal_proc AudioUnitAddPropertyListener; mal_proc AudioUnitAddPropertyListener;
mal_proc AudioUnitGetProperty; mal_proc AudioUnitGetProperty;
mal_proc AudioUnitSetProperty;
mal_proc AudioUnitInitialize; mal_proc AudioUnitInitialize;
mal_proc AudioUnitRender; mal_proc AudioUnitRender;
} coreaudio; } coreaudio;
@@ -12582,6 +12584,7 @@ typedef OSStatus (* mal_AudioOutputUnitStart_proc)(AudioUnit inUnit);
typedef OSStatus (* mal_AudioOutputUnitStop_proc)(AudioUnit inUnit); typedef OSStatus (* mal_AudioOutputUnitStop_proc)(AudioUnit inUnit);
typedef OSStatus (* mal_AudioUnitAddPropertyListener_proc)(AudioUnit inUnit, AudioUnitPropertyID inID, AudioUnitPropertyListenerProc inProc, void* inProcUserData); typedef OSStatus (* mal_AudioUnitAddPropertyListener_proc)(AudioUnit inUnit, AudioUnitPropertyID inID, AudioUnitPropertyListenerProc inProc, void* inProcUserData);
typedef OSStatus (* mal_AudioUnitGetProperty_proc)(AudioUnit inUnit, AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, void* outData, UInt32* ioDataSize); typedef OSStatus (* mal_AudioUnitGetProperty_proc)(AudioUnit inUnit, AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, void* outData, UInt32* ioDataSize);
typedef OSStatus (* mal_AudioUnitSetProperty_proc)(AudioUnit inUnit, AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, const void* inData, UInt32 inDataSize);
typedef OSStatus (* mal_AudioUnitInitialize_proc)(AudioUnit inUnit); typedef OSStatus (* mal_AudioUnitInitialize_proc)(AudioUnit inUnit);
typedef OSStatus (* mal_AudioUnitRender_proc)(AudioUnit inUnit, AudioUnitRenderActionFlags* ioActionFlags, const AudioTimeStamp* inTimeStamp, UInt32 inOutputBusNumber, UInt32 inNumberFrames, AudioBufferList* ioData); typedef OSStatus (* mal_AudioUnitRender_proc)(AudioUnit inUnit, AudioUnitRenderActionFlags* ioActionFlags, const AudioTimeStamp* inTimeStamp, UInt32 inOutputBusNumber, UInt32 inNumberFrames, AudioBufferList* ioData);
@@ -13716,7 +13719,7 @@ mal_result mal_context_init__coreaudio(mal_context* pContext)
return MAL_API_NOT_FOUND; return MAL_API_NOT_FOUND;
} }
pContext->coreaudio.CFStringGetCString = mal_dlsym(pContext->coreaudio.hCoreFoundation, "CFStringGetCString"); pContext->coreaudio.CFStringGetCString = mal_dlsym(pContext->coreaudio.hCoreFoundation, "CFStringGetCString");
pContext->coreaudio.hCoreAudio = mal_dlopen("CoreAudio.framework/CoreAudio"); pContext->coreaudio.hCoreAudio = mal_dlopen("CoreAudio.framework/CoreAudio");
@@ -13736,12 +13739,34 @@ mal_result mal_context_init__coreaudio(mal_context* pContext)
mal_dlclose(pContext->coreaudio.hCoreFoundation); mal_dlclose(pContext->coreaudio.hCoreFoundation);
return MAL_API_NOT_FOUND; return MAL_API_NOT_FOUND;
} }
pContext->coreaudio.AudioComponentFindNext = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioComponentFindNext");
pContext->coreaudio.AudioComponentInstanceDispose = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioComponentInstanceDispose");
pContext->coreaudio.AudioComponentInstanceNew = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioComponentInstanceNew");
pContext->coreaudio.AudioOutputUnitStart = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioOutputUnitStart");
pContext->coreaudio.AudioOutputUnitStop = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioOutputUnitStop");
pContext->coreaudio.AudioUnitAddPropertyListener = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioUnitAddPropertyListener");
pContext->coreaudio.AudioUnitGetProperty = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioUnitGetProperty");
pContext->coreaudio.AudioUnitSetProperty = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioUnitSetProperty");
pContext->coreaudio.AudioUnitInitialize = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioUnitInitialize");
pContext->coreaudio.AudioUnitRender = mal_dlsym(pContext->coreaudio.hAudioToolbox, "AudioUnitRender");
#else #else
pContext->coreaudio.CFStringGetCString = CFStringGetCString; pContext->coreaudio.CFStringGetCString = CFStringGetCString;
pContext->coreaudio.AudioObjectGetPropertyData = AudioObjectGetPropertyData; pContext->coreaudio.AudioObjectGetPropertyData = AudioObjectGetPropertyData;
pContext->coreaudio.AudioObjectGetPropertyDataSize = AudioObjectGetPropertyDataSize; pContext->coreaudio.AudioObjectGetPropertyDataSize = AudioObjectGetPropertyDataSize;
pContext->coreaudio.AudioObjectSetPropertyData = AudioObjectSetPropertyData; pContext->coreaudio.AudioObjectSetPropertyData = AudioObjectSetPropertyData;
pContext->coreaudio.AudioComponentFindNext = AudioComponentFindNext;
pContext->coreaudio.AudioComponentInstanceDispose = AudioComponentInstanceDispose;
pContext->coreaudio.AudioComponentInstanceNew = AudioComponentInstanceNew;
pContext->coreaudio.AudioOutputUnitStart = AudioOutputUnitStart;
pContext->coreaudio.AudioOutputUnitStop = AudioOutputUnitStop;
pContext->coreaudio.AudioUnitAddPropertyListener = AudioUnitAddPropertyListener;
pContext->coreaudio.AudioUnitGetProperty = AudioUnitGetProperty;
pContext->coreaudio.AudioUnitSetProperty = AudioUnitSetProperty;
pContext->coreaudio.AudioUnitInitialize = AudioUnitInitialize;
pContext->coreaudio.AudioUnitRender = AudioUnitRender;
#endif #endif
pContext->onDeviceIDEqual = mal_context_is_device_id_equal__coreaudio; pContext->onDeviceIDEqual = mal_context_is_device_id_equal__coreaudio;
@@ -13771,7 +13796,7 @@ void mal_device_uninit__coreaudio(mal_device* pDevice)
mal_assert(pDevice != NULL); mal_assert(pDevice != NULL);
mal_assert(mal_device__get_state(pDevice) == MAL_STATE_UNINITIALIZED); mal_assert(mal_device__get_state(pDevice) == MAL_STATE_UNINITIALIZED);
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pDevice->pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
if (pDevice->coreaudio.pAudioBufferList) { if (pDevice->coreaudio.pAudioBufferList) {
mal_free(pDevice->coreaudio.pAudioBufferList); mal_free(pDevice->coreaudio.pAudioBufferList);
@@ -13823,7 +13848,7 @@ OSStatus mal_on_input__coreaudio(void* pUserData, AudioUnitRenderActionFlags* pA
return noErr; return noErr;
} }
OSStatus status = AudioUnitRender((AudioUnit)pDevice->coreaudio.audioUnit, pActionFlags, pTimeStamp, busNumber, actualFrameCount, (AudioBufferList*)pDevice->coreaudio.pAudioBufferList); OSStatus status = ((mal_AudioUnitRender_proc)pDevice->pContext->coreaudio.AudioUnitRender)((AudioUnit)pDevice->coreaudio.audioUnit, pActionFlags, pTimeStamp, busNumber, actualFrameCount, (AudioBufferList*)pDevice->coreaudio.pAudioBufferList);
if (status != noErr) { if (status != noErr) {
return status; return status;
} }
@@ -13856,7 +13881,7 @@ void on_start_stop__coreaudio(void* pUserData, AudioUnit audioUnit, AudioUnitPro
UInt32 isRunning; UInt32 isRunning;
UInt32 isRunningSize = sizeof(isRunning); UInt32 isRunningSize = sizeof(isRunning);
OSStatus status = AudioUnitGetProperty(audioUnit, kAudioOutputUnitProperty_IsRunning, scope, element, &isRunning, &isRunningSize); OSStatus status = ((mal_AudioUnitGetProperty_proc)pDevice->pContext->coreaudio.AudioUnitGetProperty)(audioUnit, kAudioOutputUnitProperty_IsRunning, scope, element, &isRunning, &isRunningSize);
if (status != noErr) { if (status != noErr) {
return; // Don't really know what to do in this case... just ignore it, I suppose... return; // Don't really know what to do in this case... just ignore it, I suppose...
} }
@@ -13906,14 +13931,14 @@ mal_result mal_device_init__coreaudio(mal_context* pContext, mal_device_type dev
desc.componentFlags = 0; desc.componentFlags = 0;
desc.componentFlagsMask = 0; desc.componentFlagsMask = 0;
pDevice->coreaudio.component = AudioComponentFindNext(NULL, &desc); pDevice->coreaudio.component = ((mal_AudioComponentFindNext_proc)pContext->coreaudio.AudioComponentFindNext)(NULL, &desc);
if (pDevice->coreaudio.component == NULL) { if (pDevice->coreaudio.component == NULL) {
return MAL_FAILED_TO_INIT_BACKEND; return MAL_FAILED_TO_INIT_BACKEND;
} }
// Audio unit. // Audio unit.
OSStatus status = AudioComponentInstanceNew(pDevice->coreaudio.component, (AudioUnit*)&pDevice->coreaudio.audioUnit); OSStatus status = ((mal_AudioComponentInstanceNew_proc)pContext->coreaudio.AudioComponentInstanceNew)(pDevice->coreaudio.component, (AudioUnit*)&pDevice->coreaudio.audioUnit);
if (status != noErr) { if (status != noErr) {
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
@@ -13925,24 +13950,24 @@ mal_result mal_device_init__coreaudio(mal_context* pContext, mal_device_type dev
enableIOFlag = 0; enableIOFlag = 0;
} }
status = AudioUnitSetProperty((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, MAL_COREAUDIO_OUTPUT_BUS, &enableIOFlag, sizeof(enableIOFlag)); status = ((mal_AudioUnitSetProperty_proc)pContext->coreaudio.AudioUnitSetProperty)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, MAL_COREAUDIO_OUTPUT_BUS, &enableIOFlag, sizeof(enableIOFlag));
if (status != noErr) { if (status != noErr) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
enableIOFlag = (enableIOFlag == 0) ? 1 : 0; enableIOFlag = (enableIOFlag == 0) ? 1 : 0;
status = AudioUnitSetProperty((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, MAL_COREAUDIO_INPUT_BUS, &enableIOFlag, sizeof(enableIOFlag)); status = ((mal_AudioUnitSetProperty_proc)pContext->coreaudio.AudioUnitSetProperty)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, MAL_COREAUDIO_INPUT_BUS, &enableIOFlag, sizeof(enableIOFlag));
if (status != noErr) { if (status != noErr) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
// Set the device to use with this audio unit. // Set the device to use with this audio unit.
status = AudioUnitSetProperty((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, (deviceType == mal_device_type_playback) ? MAL_COREAUDIO_OUTPUT_BUS : MAL_COREAUDIO_INPUT_BUS, &deviceObjectID, sizeof(AudioDeviceID)); status = ((mal_AudioUnitSetProperty_proc)pContext->coreaudio.AudioUnitSetProperty)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, (deviceType == mal_device_type_playback) ? MAL_COREAUDIO_OUTPUT_BUS : MAL_COREAUDIO_INPUT_BUS, &deviceObjectID, sizeof(AudioDeviceID));
if (status != noErr) { if (status != noErr) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(result); return mal_result_from_OSStatus(result);
} }
@@ -13962,24 +13987,24 @@ mal_result mal_device_init__coreaudio(mal_context* pContext, mal_device_type dev
AudioStreamBasicDescription bestFormat; AudioStreamBasicDescription bestFormat;
result = mal_device_find_best_format__coreaudio(pDevice, &bestFormat); result = mal_device_find_best_format__coreaudio(pDevice, &bestFormat);
if (result != MAL_SUCCESS) { if (result != MAL_SUCCESS) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return result; return result;
} }
status = AudioUnitSetProperty((AudioUnit)pDevice->coreaudio.audioUnit, kAudioUnitProperty_StreamFormat, formatScope, formatElement, &bestFormat, sizeof(bestFormat)); status = ((mal_AudioUnitSetProperty_proc)pContext->coreaudio.AudioUnitSetProperty)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioUnitProperty_StreamFormat, formatScope, formatElement, &bestFormat, sizeof(bestFormat));
if (status != noErr) { if (status != noErr) {
// We failed to set the format, so fall back to the current format of the audio unit. // We failed to set the format, so fall back to the current format of the audio unit.
UInt32 propSize = sizeof(bestFormat); UInt32 propSize = sizeof(bestFormat);
status = AudioUnitGetProperty((AudioUnit)pDevice->coreaudio.audioUnit, kAudioUnitProperty_StreamFormat, formatScope, formatElement, &bestFormat, &propSize); status = ((mal_AudioUnitGetProperty_proc)pContext->coreaudio.AudioUnitGetProperty)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioUnitProperty_StreamFormat, formatScope, formatElement, &bestFormat, &propSize);
if (status != noErr) { if (status != noErr) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
} }
result = mal_format_from_AudioStreamBasicDescription(&bestFormat, &pDevice->internalFormat); result = mal_format_from_AudioStreamBasicDescription(&bestFormat, &pDevice->internalFormat);
if (result != MAL_SUCCESS || pDevice->internalFormat == mal_format_unknown) { if (result != MAL_SUCCESS || pDevice->internalFormat == mal_format_unknown) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return result; return result;
} }
@@ -14037,24 +14062,24 @@ mal_result mal_device_init__coreaudio(mal_context* pContext, mal_device_type dev
callbackInfo.inputProcRefCon = pDevice; callbackInfo.inputProcRefCon = pDevice;
if (deviceType == mal_device_type_playback) { if (deviceType == mal_device_type_playback) {
callbackInfo.inputProc = mal_on_output__coreaudio; callbackInfo.inputProc = mal_on_output__coreaudio;
status = AudioUnitSetProperty((AudioUnit)pDevice->coreaudio.audioUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, MAL_COREAUDIO_OUTPUT_BUS, &callbackInfo, sizeof(callbackInfo)); status = ((mal_AudioUnitSetProperty_proc)pContext->coreaudio.AudioUnitSetProperty)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, MAL_COREAUDIO_OUTPUT_BUS, &callbackInfo, sizeof(callbackInfo));
if (status != noErr) { if (status != noErr) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
} else { } else {
callbackInfo.inputProc = mal_on_input__coreaudio; callbackInfo.inputProc = mal_on_input__coreaudio;
status = AudioUnitSetProperty((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, MAL_COREAUDIO_INPUT_BUS, &callbackInfo, sizeof(callbackInfo)); status = ((mal_AudioUnitSetProperty_proc)pContext->coreaudio.AudioUnitSetProperty)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, MAL_COREAUDIO_INPUT_BUS, &callbackInfo, sizeof(callbackInfo));
if (status != noErr) { if (status != noErr) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
} }
// We need to listen for stop events. // We need to listen for stop events.
status = AudioUnitAddPropertyListener((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_IsRunning, on_start_stop__coreaudio, pDevice); status = ((mal_AudioUnitAddPropertyListener_proc)pContext->coreaudio.AudioUnitAddPropertyListener)((AudioUnit)pDevice->coreaudio.audioUnit, kAudioOutputUnitProperty_IsRunning, on_start_stop__coreaudio, pDevice);
if (status != noErr) { if (status != noErr) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
@@ -14076,7 +14101,7 @@ mal_result mal_device_init__coreaudio(mal_context* pContext, mal_device_type dev
AudioBufferList* pBufferList = (AudioBufferList*)mal_malloc(allocationSize); AudioBufferList* pBufferList = (AudioBufferList*)mal_malloc(allocationSize);
if (pBufferList == NULL) { if (pBufferList == NULL) {
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return MAL_OUT_OF_MEMORY; return MAL_OUT_OF_MEMORY;
} }
@@ -14099,10 +14124,10 @@ mal_result mal_device_init__coreaudio(mal_context* pContext, mal_device_type dev
// Initialize the audio unit. // Initialize the audio unit.
status = AudioUnitInitialize((AudioUnit)pDevice->coreaudio.audioUnit); status = ((mal_AudioUnitInitialize_proc)pContext->coreaudio.AudioUnitInitialize)((AudioUnit)pDevice->coreaudio.audioUnit);
if (status != noErr) { if (status != noErr) {
mal_free(pDevice->coreaudio.pAudioBufferList); mal_free(pDevice->coreaudio.pAudioBufferList);
AudioComponentInstanceDispose((AudioUnit)pDevice->coreaudio.audioUnit); ((mal_AudioComponentInstanceDispose_proc)pContext->coreaudio.AudioComponentInstanceDispose)((AudioUnit)pDevice->coreaudio.audioUnit);
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
@@ -14114,7 +14139,7 @@ mal_result mal_device__start_backend__coreaudio(mal_device* pDevice)
{ {
mal_assert(pDevice != NULL); mal_assert(pDevice != NULL);
OSStatus status = AudioOutputUnitStart((AudioUnit)pDevice->coreaudio.audioUnit); OSStatus status = ((mal_AudioOutputUnitStart_proc)pDevice->pContext->coreaudio.AudioOutputUnitStart)((AudioUnit)pDevice->coreaudio.audioUnit);
if (status != noErr) { if (status != noErr) {
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }
@@ -14126,7 +14151,7 @@ mal_result mal_device__stop_backend__coreaudio(mal_device* pDevice)
{ {
mal_assert(pDevice != NULL); mal_assert(pDevice != NULL);
OSStatus status = AudioOutputUnitStop((AudioUnit)pDevice->coreaudio.audioUnit); OSStatus status = ((mal_AudioOutputUnitStop_proc)pDevice->pContext->coreaudio.AudioOutputUnitStop)((AudioUnit)pDevice->coreaudio.audioUnit);
if (status != noErr) { if (status != noErr) {
return mal_result_from_OSStatus(status); return mal_result_from_OSStatus(status);
} }