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support for "audio.coreaudio.device" option in Mac OSX CoreAudio driver

This commit is contained in:
Pedro Lopez-Cabanillas 2010-10-22 20:33:26 +00:00
parent ea92438beb
commit 05ee2306b1
1 changed files with 103 additions and 11 deletions
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114
fluidsynth/src/drivers/fluid_coreaudio.c
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@ -51,11 +51,11 @@ typedef struct {
double phase;
} fluid_core_audio_driver_t;
fluid_audio_driver_t* new_fluid_core_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth);
fluid_audio_driver_t* new_fluid_core_audio_driver (fluid_settings_t* settings, fluid_synth_t* synth);
fluid_audio_driver_t* new_fluid_core_audio_driver2(fluid_settings_t* settings,
fluid_audio_func_t func,
void* data);
fluid_audio_driver_t* new_fluid_core_audio_driver2 (fluid_settings_t* settings,
fluid_audio_func_t func,
void* data);
OSStatus fluid_core_audio_callback (void *data,
AudioUnitRenderActionFlags *ioActionFlags,
@ -64,7 +64,7 @@ OSStatus fluid_core_audio_callback (void *data,
UInt32 inNumberFrames,
AudioBufferList *ioData);
int delete_fluid_core_audio_driver(fluid_audio_driver_t* p);
int delete_fluid_core_audio_driver (fluid_audio_driver_t* p);
/**************************************************************
@ -73,10 +73,60 @@ int delete_fluid_core_audio_driver(fluid_audio_driver_t* p);
*
*/
#define OK(x) (x == noErr)
int
get_num_outputs (AudioDeviceID deviceID)
{
int i, total = 0;
UInt32 size;
AudioObjectPropertyAddress pa;
pa.mSelector = kAudioDevicePropertyStreamConfiguration;
pa.mScope = kAudioDevicePropertyScopeOutput;
pa.mElement = kAudioObjectPropertyElementMaster;
if (OK (AudioObjectGetPropertyDataSize (deviceID, &pa, 0, 0, &size))) {
int num = size / (int) sizeof (AudioBufferList);
AudioBufferList bufList[num];
if (OK (AudioObjectGetPropertyData (deviceID, &pa, 0, 0, &size, bufList))) {
int numStreams = bufList->mNumberBuffers;
for (i = 0; i < numStreams; ++i) {
AudioBuffer b = bufList->mBuffers[i];
total += b.mNumberChannels;
}
}
}
return total;
}
void
fluid_core_audio_driver_settings(fluid_settings_t* settings)
{
/*fluid_settings_register_str(settings, "audio.coreaudio.device", "default", 0, NULL, NULL);*/
int i;
UInt32 size;
AudioObjectPropertyAddress pa;
pa.mSelector = kAudioHardwarePropertyDevices;
pa.mScope = kAudioObjectPropertyScopeWildcard;
pa.mElement = kAudioObjectPropertyElementMaster;
fluid_settings_register_str(settings, "audio.coreaudio.device", "default", 0, NULL, NULL);
fluid_settings_add_option(settings, "audio.coreaudio.device", "default");
if (OK (AudioObjectGetPropertyDataSize (kAudioObjectSystemObject, &pa, 0, 0, &size))) {
int num = size / (int) sizeof (AudioDeviceID);
AudioDeviceID devs [num];
if (OK (AudioObjectGetPropertyData (kAudioObjectSystemObject, &pa, 0, 0, &size, devs))) {
for (i = 0; i < num; ++i) {
char name [1024];
size = sizeof (name);
pa.mSelector = kAudioDevicePropertyDeviceName;
if (OK (AudioObjectGetPropertyData (devs[i], &pa, 0, 0, &size, name))) {
if ( get_num_outputs (devs[i]) > 0) {
fluid_settings_add_option(settings, "audio.coreaudio.device", name);
}
}
}
}
}
}
/*
@ -96,10 +146,13 @@ new_fluid_core_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth)
fluid_audio_driver_t*
new_fluid_core_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func, void* data)
{
char* devname = NULL;
fluid_core_audio_driver_t* dev = NULL;
int period_size, periods;
double sample_rate;
OSStatus status;
UInt32 size;
int i;
dev = FLUID_NEW(fluid_core_audio_driver_t);
if (dev == NULL) {
@ -127,7 +180,7 @@ new_fluid_core_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func
status = OpenAComponent(comp, &dev->outputUnit);
if (status != noErr) {
FLUID_LOG(FLUID_ERR, "Failed to open the default audio device");
FLUID_LOG(FLUID_ERR, "Failed to open the default audio device. Status=%ld\n", (long int)status);
goto error_recovery;
}
@ -149,6 +202,45 @@ new_fluid_core_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func
fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);
fluid_settings_getint(settings, "audio.periods", &periods);
fluid_settings_getint(settings, "audio.period-size", &period_size);
/* get the selected device name. if none is specified, use NULL for the default device. */
if (fluid_settings_dupstr(settings, "audio.coreaudio.device", &devname) /* alloc device name */
&& devname && strlen (devname) > 0) {
AudioObjectPropertyAddress pa;
pa.mSelector = kAudioHardwarePropertyDevices;
pa.mScope = kAudioObjectPropertyScopeWildcard;
pa.mElement = kAudioObjectPropertyElementMaster;
if (OK (AudioObjectGetPropertyDataSize (kAudioObjectSystemObject, &pa, 0, 0, &size))) {
int num = size / (int) sizeof (AudioDeviceID);
AudioDeviceID devs [num];
if (OK (AudioObjectGetPropertyData (kAudioObjectSystemObject, &pa, 0, 0, &size, devs))) {
for (i = 0; i < num; ++i) {
char name [1024];
size = sizeof (name);
pa.mSelector = kAudioDevicePropertyDeviceName;
if (OK (AudioObjectGetPropertyData (devs[i], &pa, 0, 0, &size, name))) {
if (get_num_outputs (devs[i]) > 0 && strcasecmp(devname, name) == 0) {
AudioDeviceID selectedID = devs[i];
status = AudioUnitSetProperty (dev->outputUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&selectedID,
sizeof(AudioDeviceID));
if (status != noErr) {
FLUID_LOG (FLUID_ERR, "Error setting the selected output device. Status=%ld\n", (long int)status);
goto error_recovery;
}
}
}
}
}
}
}
if (devname)
FLUID_FREE (devname); /* free device name */
dev->buffer_size = period_size * periods;
// The DefaultOutputUnit should do any format conversions
@ -156,11 +248,11 @@ new_fluid_core_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func
dev->format.mSampleRate = sample_rate; // sample rate of the audio stream
dev->format.mFormatID = kAudioFormatLinearPCM; // encoding type of the audio stream
dev->format.mFormatFlags = kLinearPCMFormatFlagIsFloat;
dev->format.mBytesPerPacket = 8;
dev->format.mBytesPerPacket = 2*sizeof(float);
dev->format.mFramesPerPacket = 1;
dev->format.mBytesPerFrame = 8;
dev->format.mBytesPerFrame = 2*sizeof(float);
dev->format.mChannelsPerFrame = 2;
dev->format.mBitsPerChannel = 32;
dev->format.mBitsPerChannel = 8*sizeof(float);
FLUID_LOG (FLUID_DBG, "mSampleRate %g", dev->format.mSampleRate);
FLUID_LOG (FLUID_DBG, "mFormatFlags %08X", dev->format.mFormatFlags);
@ -270,7 +362,7 @@ fluid_core_audio_callback ( void *data,
}
}
else fluid_synth_write_float((fluid_synth_t*) dev->data, len, buffer, 0, 2,
buffer, 1, 2);
buffer, 1, 2);
return noErr;
}