diff options
Diffstat (limited to 'platform/osx/audio_driver_osx.cpp')
| -rw-r--r-- | platform/osx/audio_driver_osx.cpp | 114 |
1 files changed, 93 insertions, 21 deletions
diff --git a/platform/osx/audio_driver_osx.cpp b/platform/osx/audio_driver_osx.cpp index 7469d52976..a4233b5264 100644 --- a/platform/osx/audio_driver_osx.cpp +++ b/platform/osx/audio_driver_osx.cpp @@ -31,11 +31,15 @@ #include "audio_driver_osx.h" -Error AudioDriverOSX::init() { +static OSStatus outputDeviceAddressCB(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses, void *__nullable inClientData) { + AudioDriverOSX *driver = (AudioDriverOSX *)inClientData; - active = false; - channels = 2; + driver->reopen(); + + return noErr; +} +Error AudioDriverOSX::initDevice() { AudioStreamBasicDescription strdesc; strdesc.mFormatID = kAudioFormatLinearPCM; strdesc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked; @@ -43,12 +47,10 @@ Error AudioDriverOSX::init() { strdesc.mSampleRate = 44100; strdesc.mFramesPerPacket = 1; strdesc.mBitsPerChannel = 16; - strdesc.mBytesPerFrame = - strdesc.mBitsPerChannel * strdesc.mChannelsPerFrame / 8; - strdesc.mBytesPerPacket = - strdesc.mBytesPerFrame * strdesc.mFramesPerPacket; + strdesc.mBytesPerFrame = strdesc.mBitsPerChannel * strdesc.mChannelsPerFrame / 8; + strdesc.mBytesPerPacket = strdesc.mBytesPerFrame * strdesc.mFramesPerPacket; - OSStatus result = noErr; + OSStatus result; AURenderCallbackStruct callback; AudioComponentDescription desc; AudioComponent comp = NULL; @@ -66,32 +68,90 @@ Error AudioDriverOSX::init() { ERR_FAIL_COND_V(result != noErr, FAILED); ERR_FAIL_COND_V(comp == NULL, FAILED); - result = AudioUnitSetProperty(audio_unit, - kAudioUnitProperty_StreamFormat, - scope, bus, &strdesc, sizeof(strdesc)); + result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_StreamFormat, scope, bus, &strdesc, sizeof(strdesc)); ERR_FAIL_COND_V(result != noErr, FAILED); zeromem(&callback, sizeof(AURenderCallbackStruct)); callback.inputProc = &AudioDriverOSX::output_callback; callback.inputProcRefCon = this; - result = AudioUnitSetProperty(audio_unit, - kAudioUnitProperty_SetRenderCallback, - scope, bus, &callback, sizeof(callback)); + result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_SetRenderCallback, scope, bus, &callback, sizeof(callback)); ERR_FAIL_COND_V(result != noErr, FAILED); result = AudioUnitInitialize(audio_unit); ERR_FAIL_COND_V(result != noErr, FAILED); - result = AudioOutputUnitStart(audio_unit); + return OK; +} + +Error AudioDriverOSX::finishDevice() { + OSStatus result; + + if (active) { + result = AudioOutputUnitStop(audio_unit); + ERR_FAIL_COND_V(result != noErr, FAILED); + + active = false; + } + + result = AudioUnitUninitialize(audio_unit); + ERR_FAIL_COND_V(result != noErr, FAILED); + + return OK; +} + +Error AudioDriverOSX::init() { + OSStatus result; + + active = false; + channels = 2; + + outputDeviceAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice; + outputDeviceAddress.mScope = kAudioObjectPropertyScopeGlobal; + outputDeviceAddress.mElement = kAudioObjectPropertyElementMaster; + + result = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &outputDeviceAddress, &outputDeviceAddressCB, this); ERR_FAIL_COND_V(result != noErr, FAILED); const int samples = 1024; samples_in = memnew_arr(int32_t, samples); // whatever buffer_frames = samples / channels; - return OK; + return initDevice(); }; +Error AudioDriverOSX::reopen() { + Error err; + bool restart = false; + + lock(); + + if (active) { + restart = true; + } + + err = finishDevice(); + if (err != OK) { + ERR_PRINT("finishDevice failed"); + unlock(); + return err; + } + + err = initDevice(); + if (err != OK) { + ERR_PRINT("initDevice failed"); + unlock(); + return err; + } + + if (restart) { + start(); + } + + unlock(); + + return OK; +} + OSStatus AudioDriverOSX::output_callback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, @@ -149,7 +209,14 @@ OSStatus AudioDriverOSX::output_callback(void *inRefCon, }; void AudioDriverOSX::start() { - active = true; + if (!active) { + OSStatus result = AudioOutputUnitStart(audio_unit); + if (result != noErr) { + ERR_PRINT("AudioOutputUnitStart failed"); + } else { + active = true; + } + } }; int AudioDriverOSX::get_mix_rate() const { @@ -161,18 +228,23 @@ AudioDriver::SpeakerMode AudioDriverOSX::get_speaker_mode() const { }; void AudioDriverOSX::lock() { - if (active && mutex) + if (mutex) mutex->lock(); }; void AudioDriverOSX::unlock() { - if (active && mutex) + if (mutex) mutex->unlock(); }; void AudioDriverOSX::finish() { + OSStatus result; + + finishDevice(); - if (active) - AudioOutputUnitStop(audio_unit); + result = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &outputDeviceAddress, &outputDeviceAddressCB, this); + if (result != noErr) { + ERR_PRINT("AudioObjectRemovePropertyListener failed"); + } memdelete_arr(samples_in); }; |