void start (AudioIODeviceCallback* newCallback) override
{
if (session != nullptr && callback != newCallback)
{
AudioIODeviceCallback* oldCallback = callback;
if (newCallback != nullptr)
newCallback->audioDeviceAboutToStart (this);
if (oldCallback != nullptr)
{
// already running
if (newCallback == nullptr)
stop();
else
session->setCallback (newCallback);
oldCallback->audioDeviceStopped();
}
else
{
jassert (newCallback != nullptr);
// session hasn't started yet
session->setCallback (newCallback);
session->start();
}
callback = newCallback;
}
}
void stop() override
{
if (isRunning)
{
AudioIODeviceCallback* lastCallback;
{
const ScopedLock sl (callbackLock);
lastCallback = callback;
callback = nullptr;
}
if (lastCallback != nullptr)
lastCallback->audioDeviceStopped();
}
}
bool OK (const OSStatus errorCode) const
{
if (errorCode == noErr)
return true;
const String errorMessage ("CoreAudio error: " + String::toHexString ((int) errorCode));
JUCE_COREAUDIOLOG (errorMessage);
if (callback != nullptr)
callback->audioDeviceError (errorMessage);
return false;
}
