static int
coreaudio_voice_ctl (coreaudioVoice* core, int cmd)
{
OSStatus status;
switch (cmd) {
case VOICE_ENABLE:
/* start playback */
D("%s: %s started\n", __FUNCTION__, core->isInput ? "input" : "output");
if (!coreaudio_voice_isPlaying(core)) {
status = AudioDeviceStart(core->deviceID, core->ioproc);
if (status != kAudioHardwareNoError) {
coreaudio_logerr (status, "Could not resume playback\n");
}
}
break;
case VOICE_DISABLE:
/* stop playback */
D("%s: %s stopped\n", __FUNCTION__, core->isInput ? "input" : "output");
if (!conf.isAtexit) {
if (coreaudio_voice_isPlaying(core)) {
status = AudioDeviceStop(core->deviceID, core->ioproc);
if (status != kAudioHardwareNoError) {
coreaudio_logerr (status, "Could not pause playback\n");
}
}
}
break;
}
return 0;
}
static int coreaudio_ctl_out (HWVoiceOut *hw, int cmd, ...)
{
OSStatus status;
coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;
switch (cmd) {
case VOICE_ENABLE:
/* start playback */
if (!isPlaying(core->outputDeviceID)) {
status = AudioDeviceStart(core->outputDeviceID, audioDeviceIOProc);
if (status != kAudioHardwareNoError) {
coreaudio_logerr (status, "Could not resume playback\n");
}
}
break;
case VOICE_DISABLE:
/* stop playback */
if (!isAtexit) {
if (isPlaying(core->outputDeviceID)) {
status = AudioDeviceStop(core->outputDeviceID, audioDeviceIOProc);
if (status != kAudioHardwareNoError) {
coreaudio_logerr (status, "Could not pause playback\n");
}
}
}
break;
}
return 0;
}
static void coreaudio_fini_out (HWVoiceOut *hw)
{
OSStatus status;
int err;
coreaudioVoiceOut *core = (coreaudioVoiceOut *) hw;
if (!isAtexit) {
/* stop playback */
if (isPlaying(core->outputDeviceID)) {
status = AudioDeviceStop(core->outputDeviceID, audioDeviceIOProc);
if (status != kAudioHardwareNoError) {
coreaudio_logerr (status, "Could not stop playback\n");
}
}
/* remove callback */
status = AudioDeviceRemoveIOProc(core->outputDeviceID,
audioDeviceIOProc);
if (status != kAudioHardwareNoError) {
coreaudio_logerr (status, "Could not remove IOProc\n");
}
}
core->outputDeviceID = kAudioDeviceUnknown;
/* destroy mutex */
err = pthread_mutex_destroy(&core->mutex);
if (err) {
dolog("Could not destroy mutex\nReason: %s\n", strerror (err));
}
}
static inline UInt32 isPlaying (AudioDeviceID outputDeviceID)
{
OSStatus status;
UInt32 result = 0;
status = coreaudio_get_isrunning(outputDeviceID, &result);
if (status != kAudioHardwareNoError) {
coreaudio_logerr(status,
"Could not determine whether Device is playing\n");
}
return result;
}
static inline UInt32 isPlaying (AudioDeviceID outputDeviceID)
{
OSStatus status;
UInt32 result = 0;
UInt32 propertySize = sizeof(outputDeviceID);
status = AudioDeviceGetProperty(
outputDeviceID, 0, 0,
kAudioDevicePropertyDeviceIsRunning, &propertySize, &result);
if (status != kAudioHardwareNoError) {
coreaudio_logerr(status,
"Could not determine whether Device is playing\n");
}
return result;
}
static inline UInt32
coreaudio_voice_isPlaying (coreaudioVoice *core)
{
OSStatus status;
UInt32 result = 0;
UInt32 propertySize = sizeof(core->deviceID);
status = AudioDeviceGetProperty(
core->deviceID, 0, core->isInput,
kAudioDevicePropertyDeviceIsRunning, &propertySize, &result);
if (status != kAudioHardwareNoError) {
coreaudio_logerr(status,
"Could not determine whether Device is playing\n");
}
return result;
}
static void
coreaudio_voice_fini (coreaudioVoice* core)
{
OSStatus status;
int err;
if (!conf.isAtexit) {
/* stop playback */
coreaudio_voice_ctl(core, VOICE_DISABLE);
/* remove callback */
status = AudioDeviceRemoveIOProc(core->deviceID, core->ioproc);
if (status != kAudioHardwareNoError) {
coreaudio_logerr (status, "Could not remove IOProc\n");
}
}
core->deviceID = kAudioDeviceUnknown;
/* destroy mutex */
err = pthread_mutex_destroy(&core->mutex);
if (err) {
dolog("Could not destroy mutex\nReason: %s\n", strerror (err));
}
}
