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-rw-r--r--platform/osx/audio_driver_osx.cpp102
-rw-r--r--platform/osx/audio_driver_osx.h4
2 files changed, 69 insertions, 37 deletions
diff --git a/platform/osx/audio_driver_osx.cpp b/platform/osx/audio_driver_osx.cpp
index d7a91b1653..da5cd8f65e 100644
--- a/platform/osx/audio_driver_osx.cpp
+++ b/platform/osx/audio_driver_osx.cpp
@@ -30,6 +30,10 @@
#ifdef OSX_ENABLED
#include "audio_driver_osx.h"
+#include "core/project_settings.h"
+#include "os/os.h"
+
+#define kOutputBus 0
static OSStatus outputDeviceAddressCB(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses, void *__nullable inClientData) {
AudioDriverOSX *driver = (AudioDriverOSX *)inClientData;
@@ -40,42 +44,69 @@ static OSStatus outputDeviceAddressCB(AudioObjectID inObjectID, UInt32 inNumberA
}
Error AudioDriverOSX::initDevice() {
+ AudioComponentDescription desc;
+ zeromem(&desc, sizeof(desc));
+ desc.componentType = kAudioUnitType_Output;
+ desc.componentSubType = kAudioUnitSubType_HALOutput;
+ desc.componentManufacturer = kAudioUnitManufacturer_Apple;
+
+ AudioComponent comp = AudioComponentFindNext(NULL, &desc);
+ ERR_FAIL_COND_V(comp == NULL, FAILED);
+
+ OSStatus result = AudioComponentInstanceNew(comp, &audio_unit);
+ ERR_FAIL_COND_V(result != noErr, FAILED);
+
AudioStreamBasicDescription strdesc;
+
+ // TODO: Implement this
+ /*zeromem(&strdesc, sizeof(strdesc));
+ UInt32 size = sizeof(strdesc);
+ result = AudioUnitGetProperty(audio_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kOutputBus, &strdesc, &size);
+ ERR_FAIL_COND_V(result != noErr, FAILED);
+
+ switch (strdesc.mChannelsPerFrame) {
+ case 2: // Stereo
+ case 6: // Surround 5.1
+ case 8: // Surround 7.1
+ channels = strdesc.mChannelsPerFrame;
+ break;
+
+ default:
+ // Unknown number of channels, default to stereo
+ channels = 2;
+ break;
+ }*/
+
+ mix_rate = GLOBAL_DEF("audio/mix_rate", 44100);
+
+ zeromem(&strdesc, sizeof(strdesc));
strdesc.mFormatID = kAudioFormatLinearPCM;
strdesc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked;
strdesc.mChannelsPerFrame = channels;
- strdesc.mSampleRate = 44100;
+ strdesc.mSampleRate = mix_rate;
strdesc.mFramesPerPacket = 1;
strdesc.mBitsPerChannel = 16;
strdesc.mBytesPerFrame = strdesc.mBitsPerChannel * strdesc.mChannelsPerFrame / 8;
strdesc.mBytesPerPacket = strdesc.mBytesPerFrame * strdesc.mFramesPerPacket;
- OSStatus result;
- AURenderCallbackStruct callback;
- AudioComponentDescription desc;
- AudioComponent comp = NULL;
- const AudioUnitElement output_bus = 0;
- const AudioUnitElement bus = output_bus;
- const AudioUnitScope scope = kAudioUnitScope_Input;
-
- zeromem(&desc, sizeof(desc));
- desc.componentType = kAudioUnitType_Output;
- desc.componentSubType = kAudioUnitSubType_HALOutput;
- desc.componentManufacturer = kAudioUnitManufacturer_Apple;
+ result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, kOutputBus, &strdesc, sizeof(strdesc));
+ ERR_FAIL_COND_V(result != noErr, FAILED);
- comp = AudioComponentFindNext(NULL, &desc);
- ERR_FAIL_COND_V(comp == NULL, FAILED);
+ int latency = GLOBAL_DEF("audio/output_latency", 25);
+ unsigned int buffer_size = closest_power_of_2(latency * mix_rate / 1000);
- result = AudioComponentInstanceNew(comp, &audio_unit);
- ERR_FAIL_COND_V(result != noErr, FAILED);
+ if (OS::get_singleton()->is_stdout_verbose()) {
+ print_line("audio buffer size: " + itos(buffer_size) + " calculated latency: " + itos(buffer_size * 1000 / mix_rate));
+ }
- result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_StreamFormat, scope, bus, &strdesc, sizeof(strdesc));
- ERR_FAIL_COND_V(result != noErr, FAILED);
+ samples_in.resize(buffer_size);
+ buffer_frames = buffer_size / channels;
+ AURenderCallbackStruct callback;
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, kAudioUnitScope_Input, kOutputBus, &callback, sizeof(callback));
ERR_FAIL_COND_V(result != noErr, FAILED);
result = AudioUnitInitialize(audio_unit);
@@ -114,15 +145,10 @@ Error AudioDriverOSX::init() {
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 initDevice();
};
Error AudioDriverOSX::reopen() {
- Error err;
bool restart = false;
lock();
@@ -131,7 +157,7 @@ Error AudioDriverOSX::reopen() {
restart = true;
}
- err = finishDevice();
+ Error err = finishDevice();
if (err != OK) {
ERR_PRINT("finishDevice failed");
unlock();
@@ -179,7 +205,7 @@ OSStatus AudioDriverOSX::output_callback(void *inRefCon,
while (frames_left) {
int frames = MIN(frames_left, ad->buffer_frames);
- ad->audio_server_process(frames, ad->samples_in);
+ ad->audio_server_process(frames, ad->samples_in.ptr());
for (int j = 0; j < frames * ad->channels; j++) {
@@ -232,29 +258,33 @@ bool AudioDriverOSX::try_lock() {
}
void AudioDriverOSX::finish() {
- OSStatus result;
-
finishDevice();
- result = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &outputDeviceAddress, &outputDeviceAddressCB, this);
+ OSStatus result = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &outputDeviceAddress, &outputDeviceAddressCB, this);
if (result != noErr) {
ERR_PRINT("AudioObjectRemovePropertyListener failed");
}
+ AURenderCallbackStruct callback;
+ zeromem(&callback, sizeof(AURenderCallbackStruct));
+ result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, kOutputBus, &callback, sizeof(callback));
+ if (result != noErr) {
+ ERR_PRINT("AudioUnitSetProperty failed");
+ }
+
if (mutex) {
memdelete(mutex);
mutex = NULL;
}
-
- if (samples_in) {
- memdelete_arr(samples_in);
- samples_in = NULL;
- }
};
AudioDriverOSX::AudioDriverOSX() {
+ active = false;
mutex = NULL;
- samples_in = NULL;
+
+ mix_rate = 44100;
+ channels = 2;
+ samples_in.clear();
};
AudioDriverOSX::~AudioDriverOSX(){};
diff --git a/platform/osx/audio_driver_osx.h b/platform/osx/audio_driver_osx.h
index 287c9d6cbf..4576100690 100644
--- a/platform/osx/audio_driver_osx.h
+++ b/platform/osx/audio_driver_osx.h
@@ -44,10 +44,12 @@ class AudioDriverOSX : public AudioDriver {
bool active;
Mutex *mutex;
+ int mix_rate;
int channels;
- int32_t *samples_in;
int buffer_frames;
+ Vector<int32_t> samples_in;
+
static OSStatus output_callback(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 13:01:09 +0000