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CoreAudio: cleanup

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This commit is contained in:
Andrew Kelley 2015-08-04 09:52:48 -07:00
parent f87961275d
commit d00fe4db58
1 changed files with 38 additions and 34 deletions
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70
src/coreaudio.cpp
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@ -41,14 +41,10 @@ static void destroy_ca(struct SoundIoPrivate *si) {
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMaster
};
err = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop_address,
on_devices_changed, si);
assert(!err);
AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop_address, on_devices_changed, si);
prop_address.mSelector = kAudioHardwarePropertyServiceRestarted;
err = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop_address,
on_service_restarted, si);
assert(!err);
AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop_address, on_service_restarted, si);
if (sica->thread) {
sica->abort_flag.clear();
@ -71,12 +67,6 @@ static void destroy_ca(struct SoundIoPrivate *si) {
soundio_destroy_devices_info(sica->ready_devices_info);
}
/* TODO
static CFStringRef to_cf_string(const char *str) {
return CFStringCreateWithCString(kCFAllocatorDefault, str, kCFStringEncodingUTF8);
}
*/
// Possible errors:
// * SoundIoErrorNoMem
// * SoundIoErrorEncodingString
@ -215,6 +205,8 @@ static SoundIoChannelId from_channel_descr(const AudioChannelDescription *descr)
// See https://developer.apple.com/library/mac/documentation/MusicAudio/Reference/CoreAudioDataTypesRef/#//apple_ref/doc/constant_group/Audio_Channel_Layout_Tags
// Possible Errors:
// * SoundIoErrorIncompatibleDevice
// This does not handle all the possible layout enum values and it does not
// handle channel bitmaps.
static int from_coreaudio_layout(const AudioChannelLayout *ca_layout, SoundIoChannelLayout *layout) {
switch (ca_layout->mChannelLayoutTag) {
case kAudioChannelLayoutTag_UseChannelDescriptions:
@ -226,7 +218,6 @@ static int from_coreaudio_layout(const AudioChannelLayout *ca_layout, SoundIoCha
break;
}
case kAudioChannelLayoutTag_UseChannelBitmap:
soundio_panic("TODO how the f to parse this");
return SoundIoErrorIncompatibleDevice;
case kAudioChannelLayoutTag_Mono:
layout->channel_count = 1;
@ -303,7 +294,6 @@ static int from_coreaudio_layout(const AudioChannelLayout *ca_layout, SoundIoCha
layout->channels[6] = SoundIoChannelIdTopBackLeft;
layout->channels[7] = SoundIoChannelIdTopBackRight;
break;
// TODO more hardcoded channel layouts
default:
return SoundIoErrorIncompatibleDevice;
}
@ -347,7 +337,6 @@ static void deinit_refresh_devices(RefreshDevices *rd) {
free(rd->avr_array);
}
// TODO get the device UID which persists between unplug/plug
static int refresh_devices(struct SoundIoPrivate *si) {
SoundIo *soundio = &si->pub;
SoundIoCoreAudio *sica = &si->backend_data.coreaudio;
@ -752,9 +741,11 @@ static void device_thread_run(void *arg) {
static void outstream_destroy_ca(struct SoundIoPrivate *si, struct SoundIoOutStreamPrivate *os) {
SoundIoOutStreamCoreAudio *osca = &os->backend_data.coreaudio;
if (osca->output_instance)
if (osca->output_instance) {
AudioOutputUnitStop(osca->output_instance)
AudioComponentInstanceDispose(osca->output_instance);
}
}
static OSStatus write_callback_ca(void *userdata, AudioUnitRenderActionFlags *io_action_flags,
const AudioTimeStamp *in_time_stamp, UInt32 in_bus_number, UInt32 in_number_frames,
@ -788,16 +779,19 @@ static int outstream_open_ca(struct SoundIoPrivate *si, struct SoundIoOutStreamP
AudioComponent output_comp = AudioComponentFindNext(nullptr, &desc);
if (!output_comp) {
soundio_panic("find next comp");
outstream_destroy_ca(si, os);
return SoundIoErrorOpeningDevice;
}
OSStatus os_err;
if ((os_err = AudioComponentInstanceNew(output_comp, &osca->output_instance))) {
soundio_panic("AudioComponentInstanceNew");
outstream_destroy_ca(si, os);
return SoundIoErrorOpeningDevice;
}
if ((os_err = AudioUnitInitialize(osca->output_instance))) {
soundio_panic("AudioUnitInitialize");
outstream_destroy_ca(si, os);
return SoundIoErrorOpeningDevice;
}
AudioStreamBasicDescription format = {0};
@ -813,33 +807,30 @@ static int outstream_open_ca(struct SoundIoPrivate *si, struct SoundIoOutStreamP
if ((os_err = AudioUnitSetProperty(osca->output_instance, kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Input, 0, &dca->device_id, sizeof(AudioDeviceID))))
{
soundio_panic("set device");
outstream_destroy_ca(si, os);
return SoundIoErrorOpeningDevice;
}
if ((os_err = AudioUnitSetProperty(osca->output_instance, kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input, 0, &format, sizeof(AudioStreamBasicDescription))))
{
soundio_panic("AudioUnitSetProperty format %d", os_err);
outstream_destroy_ca(si, os);
return SoundIoErrorOpeningDevice;
}
AURenderCallbackStruct render_callback = {write_callback_ca, os};
if ((os_err = AudioUnitSetProperty(osca->output_instance, kAudioUnitProperty_SetRenderCallback,
kAudioUnitScope_Input, 0, &render_callback, sizeof(AURenderCallbackStruct))))
{
soundio_panic("AudioUnitSetProperty callback");
outstream_destroy_ca(si, os);
return SoundIoErrorOpeningDevice;
}
return 0;
}
static int outstream_start_ca(struct SoundIoPrivate *si, struct SoundIoOutStreamPrivate *os) {
SoundIoOutStreamCoreAudio *osca = &os->backend_data.coreaudio;
OSStatus os_err;
if ((os_err = AudioOutputUnitStart(osca->output_instance))) {
soundio_panic("audio outut unit start");
}
return 0;
return outstream_pause_ca(si, os, false);
}
static int outstream_begin_write_ca(struct SoundIoPrivate *si, struct SoundIoOutStreamPrivate *os,
@ -872,13 +863,24 @@ static int outstream_end_write_ca(struct SoundIoPrivate *si, struct SoundIoOutSt
}
static int outstream_clear_buffer_ca(struct SoundIoPrivate *si, struct SoundIoOutStreamPrivate *os) {
soundio_panic("TODO clear buffer");
return 0;
}
static int outstream_pause_ca(struct SoundIoPrivate *si, struct SoundIoOutStreamPrivate *os, bool pause) {
soundio_panic("TODO pause");
SoundIoOutStreamCoreAudio *osca = &os->backend_data.coreaudio;
OSStatus os_err;
if (pause) {
if ((os_err = AudioOutputUnitStop(osca->output_instance))) {
return SoundIoErrorStreaming;
}
} else {
if ((os_err = AudioOutputUnitStart(osca->output_instance))) {
return SoundIoErrorStreaming;
}
}
return 0;
}
static int instream_open_ca(struct SoundIoPrivate *si, struct SoundIoInStreamPrivate *is) {
@ -951,14 +953,16 @@ int soundio_coreaudio_init(SoundIoPrivate *si) {
if ((err = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &prop_address,
on_devices_changed, si)))
{
soundio_panic("add prop listener");
destroy_ca(si);
return SoundIoErrorSystemResources;
}
prop_address.mSelector = kAudioHardwarePropertyServiceRestarted;
if ((err = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &prop_address,
on_service_restarted, si)))
{
soundio_panic("add prop listener 2");
destroy_ca(si);
return SoundIoErrorSystemResources;
}
if ((err = soundio_os_thread_create(device_thread_run, si, false, &sica->thread))) {