bool ofxAudioUnitFilePlayer::setFile(const std::string &filePath) {
CFURLRef fileURL;
fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,
(const UInt8 *)filePath.c_str(),
filePath.length(),
NULL);
if(_fileID[0]) {
AudioFileClose(_fileID[0]);
_fileID[0] = NULL;
}
OSStatus s = AudioFileOpenURL(fileURL, kAudioFileReadPermission, 0, _fileID);
CFRelease(fileURL);
_primed = false;
if(s != noErr) {
cout << "Error " << s << " while opening file at " << filePath << endl;
return false;
} else {
// setting the file ID now since it seems to have some overhead.
// Doing it now ensures you'll get sound pretty much instantly after
// calling play() (subsequent calls don't have the overhead)
OFXAU_RET_BOOL(AudioUnitSetProperty(*_unit,
kAudioUnitProperty_ScheduledFileIDs,
kAudioUnitScope_Global,
0,
_fileID,
sizeof(_fileID)),
"setting file player's file ID");
}
}
// ----------------------------------------------------------
bool ofxAudioUnitInput::start()
// ----------------------------------------------------------
{
if(!_impl->isReady) _impl->isReady = configureInputDevice();
if(!_impl->isReady) return false;
OFXAU_RET_BOOL(AudioOutputUnitStart(*_unit), "starting hardware input unit");
}
// ----------------------------------------------------------
bool ofxAudioUnitOutput::start(int deviceID)
// ----------------------------------------------------------
{
cout<<"ofxAudioUnitOutput::start() "<<deviceID<<endl;
if(!_isReady) _isReady = configureOutputDevice(deviceID);
if(!_isReady) return false;
OFXAU_RET_BOOL(AudioOutputUnitStart(*_unit), "starting output unit");
}
// ----------------------------------------------------------
bool ofxAudioUnitInput::stop()
// ----------------------------------------------------------
{
if(_unit) {
OFXAU_RET_BOOL(AudioOutputUnitStop(*_unit), "stopping hardware input unit");
}
return false;
}
// ----------------------------------------------------------
bool ofxAudioUnitFilePlayer::setFile(const std::string &filePath)
// ----------------------------------------------------------
{
CFURLRef fileURL;
fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,
(const UInt8 *)filePath.c_str(),
filePath.length(),
NULL);
if(_fileID[0]) AudioFileClose(_fileID[0]);
OSStatus s = AudioFileOpenURL(fileURL, kAudioFileReadPermission, 0, _fileID);
CFRelease(fileURL);
if(s != noErr)
{
cout << "Error " << s << " while opening file at " << filePath << endl;
return false;
}
UInt64 numPackets = 0;
UInt32 dataSize = sizeof(numPackets);
AudioFileGetProperty(_fileID[0],
kAudioFilePropertyAudioDataPacketCount,
&dataSize,
&numPackets);
AudioStreamBasicDescription asbd = {0};
dataSize = sizeof(asbd);
AudioFileGetProperty(_fileID[0], kAudioFilePropertyDataFormat, &dataSize, &asbd);
// defining a region which basically says "play the whole file"
memset(&_region, 0, sizeof(_region));
_region.mTimeStamp.mFlags = kAudioTimeStampHostTimeValid;
_region.mTimeStamp.mSampleTime = 0;
_region.mCompletionProc = NULL;
_region.mCompletionProcUserData = NULL;
_region.mAudioFile = _fileID[0];
_region.mLoopCount = 0;
_region.mStartFrame = 0;
_region.mFramesToPlay = numPackets * asbd.mFramesPerPacket;
// setting the file ID now since it seems to have some overhead.
// Doing it now ensures you'll get sound pretty much instantly after
// calling play() (subsequent calls don't have the overhead)
OFXAU_RET_BOOL(AudioUnitSetProperty(*_unit,
kAudioUnitProperty_ScheduledFileIDs,
kAudioUnitScope_Global,
0,
_fileID,
sizeof(_fileID)),
"setting file player's file ID");
}
// ----------------------------------------------------------
bool ofxAudioUnitInput::setDevice(AudioDeviceID deviceID)
// ----------------------------------------------------------
{
_impl->inputDeviceID = deviceID;
UInt32 deviceIDSize = sizeof(deviceID);
OFXAU_RET_BOOL(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&deviceID,
deviceIDSize),
"setting input unit's device ID");
}
// ----------------------------------------------------------
bool ofxAudioUnitMidiReceiver::connectToMidiSource(unsigned long midiSourceIndex)
// ----------------------------------------------------------
{
if(!_port)
{
OSStatus s = MIDIInputPortCreate(_client,
CFSTR("oF MIDI Input Port"),
ofxAudioUnitMidiReadProc,
&_unit,
&_port);
if(s != noErr) return false;
}
OFXAU_RET_BOOL(MIDIPortConnectSource(_port, MIDIGetSource(midiSourceIndex), NULL),
"connecting MIDI receiver to source");
}
// ----------------------------------------------------------
bool ofxAudioUnitInput::setDevice(AudioDeviceID deviceID)
// ----------------------------------------------------------
{
_impl->inputDeviceID = deviceID;
// Only actively set the device if it's already been configured. If it's not
// yet configured, it'll be handled when configureInputDevice() is called.
if(_impl->isReady) {
UInt32 deviceIDSize = sizeof(deviceID);
OFXAU_RET_BOOL(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&deviceID,
deviceIDSize),
"setting input unit's device ID");
}
}
// ----------------------------------------------------------
bool ofxAudioUnitOutput::configureOutputDevice(int deviceID)
// ----------------------------------------------------------
{
OSStatus err = noErr;
UInt32 outSize;
Boolean outWritable;
err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &outSize, &outWritable);
if ( err != noErr ) cout<<"err 1"<<endl;
UInt16 devicesAvailable = outSize / sizeof(AudioDeviceID);
if ( devicesAvailable < 1 )
{
fprintf(stderr, "No devices\n" );
//return err;
}else{
cout<<"*devicesAvailable "<<devicesAvailable<<endl;
}
UInt32 on = 1;
UInt32 off = 0;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input,
1,
&off,
sizeof(off)),
"disabling input on HAL unit");
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output,
0,
&on,
sizeof(on)),
"enabling output on HAL unit");
AudioDeviceID outputDeviceID = kAudioObjectUnknown;
UInt32 deviceIDSize = sizeof( AudioDeviceID );
AudioObjectPropertyAddress prop_addr = {
kAudioHardwarePropertyDefaultOutputDevice,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
OFXAU_RET_FALSE(AudioObjectGetPropertyData(kAudioObjectSystemObject,
&prop_addr,
0,
NULL,
&deviceIDSize,
&outputDeviceID),
"getting device ID for default input");
if(deviceID != -1) outputDeviceID = deviceID;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&outputDeviceID,
deviceIDSize),
"setting HAL unit's device ID");
cout<<"outputDeviceID "<<outputDeviceID<<endl;
OFXAU_RET_BOOL(AudioUnitInitialize(*_unit),
"initializing hardware input unit after setting it to input mode");
}
// ----------------------------------------------------------
bool ofxAudioUnitOutput::stop()
// ----------------------------------------------------------
{
OFXAU_RET_BOOL(AudioOutputUnitStop(*_unit), "stopping output unit");
}
// ----------------------------------------------------------
bool ofxAudioUnitInput::configureInputDevice()
// ----------------------------------------------------------
{
UInt32 on = 1;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input,
1,
&on,
sizeof(on)),
"enabling input on HAL unit");
UInt32 off = 0;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output,
0,
&off,
sizeof(off)),
"disabling output on HAL unit");
UInt32 deviceIDSize = sizeof(AudioDeviceID);
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&_impl->inputDeviceID,
deviceIDSize),
"setting HAL unit's device ID");
AudioStreamBasicDescription deviceASBD = {0};
UInt32 ASBDSize = sizeof(deviceASBD);
OFXAU_RET_FALSE(AudioUnitGetProperty(*_unit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output,
1,
&deviceASBD,
&ASBDSize),
"getting hardware stream format");
deviceASBD.mSampleRate = 44100;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output,
1,
&deviceASBD,
sizeof(deviceASBD)),
"setting input sample rate to 44100");
AURenderCallbackStruct inputCallback = {RenderCallback, &_impl->ctx};
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_SetInputCallback,
kAudioUnitScope_Global,
0,
&inputCallback,
sizeof(inputCallback)),
"setting hardware input callback");
OFXAU_RET_BOOL(AudioUnitInitialize(*_unit),
"initializing hardware input unit after setting it to input mode");
}
// ----------------------------------------------------------
bool ofxAudioUnitInput::configureInputDevice()
// ----------------------------------------------------------
{
UInt32 on = 1;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input,
1,
&on,
sizeof(on)),
"enabling input on HAL unit");
UInt32 off = 0;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output,
0,
&off,
sizeof(off)),
"disabling output on HAL unit");
AudioDeviceID inputDeviceID = kAudioObjectUnknown;
UInt32 deviceIDSize = sizeof( AudioDeviceID );
AudioObjectPropertyAddress prop_addr = {
kAudioHardwarePropertyDefaultInputDevice,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
OFXAU_RET_FALSE(AudioObjectGetPropertyData(kAudioObjectSystemObject,
&prop_addr,
0,
NULL,
&deviceIDSize,
&inputDeviceID),
"getting device ID for default input");
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&inputDeviceID,
deviceIDSize),
"setting HAL unit's device ID");
AudioStreamBasicDescription deviceASBD = {0};
UInt32 ASBDSize = sizeof(deviceASBD);
OFXAU_RET_FALSE(AudioUnitGetProperty(*_unit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output,
1,
&deviceASBD,
&ASBDSize),
"getting hardware stream format");
deviceASBD.mSampleRate = 44100;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output,
1,
&deviceASBD,
sizeof(deviceASBD)),
"setting input sample rate to 44100");
AURenderCallbackStruct inputCallback;
inputCallback.inputProc = ofxAudioUnitInput::renderCallback;
inputCallback.inputProcRefCon = &_renderContext;
OFXAU_RET_FALSE(AudioUnitSetProperty(*_unit,
kAudioOutputUnitProperty_SetInputCallback,
kAudioUnitScope_Global,
0,
&inputCallback,
sizeof(inputCallback)),
"setting hardware input callback");
OFXAU_RET_BOOL(AudioUnitInitialize(*_unit),
"initializing hardware input unit after setting it to input mode");
}
