/// Gets a NEW list of devices by terminating and restarting portaudio
/// Assumes that DeviceManager is only used on the main thread.
void DeviceManager::Rescan()
{
// get rid of the previous scan info
this->mInputDeviceSourceMaps.clear();
this->mOutputDeviceSourceMaps.clear();
// if we are doing a second scan then restart portaudio to get NEW devices
if (m_inited) {
// check to see if there is a stream open - can happen if monitoring,
// but otherwise Rescan() should not be available to the user.
if (gAudioIO) {
if (gAudioIO->IsMonitoring())
{
gAudioIO->StopStream();
while (gAudioIO->IsBusy())
wxMilliSleep(100);
}
}
// restart portaudio - this updates the device list
// FIXME: TRAP_ERR restarting PortAudio
Pa_Terminate();
Pa_Initialize();
}
// FIXME: TRAP_ERR PaErrorCode not handled in ReScan()
int nDevices = Pa_GetDeviceCount();
//The heirarchy for devices is Host/device/source.
//Some newer systems aggregate this.
//So we need to call port mixer for every device to get the sources
for (int i = 0; i < nDevices; i++) {
const PaDeviceInfo *info = Pa_GetDeviceInfo(i);
if (info->maxOutputChannels > 0) {
AddSources(i, info->defaultSampleRate, &mOutputDeviceSourceMaps, 0);
}
if (info->maxInputChannels > 0) {
#ifdef __WXMSW__
#if !defined(EXPERIMENTAL_FULL_WASAPI)
if (Pa_GetHostApiInfo(info->hostApi)->type != paWASAPI ||
PaWasapi_IsLoopback(i) > 0)
#endif
#endif
AddSources(i, info->defaultSampleRate, &mInputDeviceSourceMaps, 1);
}
}
// If this was not an initial scan update each device toolbar.
// Hosts may have disappeared or appeared so a complete repopulate is needed.
if (m_inited) {
DeviceToolBar *dt;
for (size_t i = 0; i < gAudacityProjects.size(); i++) {
dt = gAudacityProjects[i]->GetDeviceToolBar();
dt->RefillCombos();
}
}
m_inited = true;
mRescanTime = std::chrono::steady_clock::now();
}
/// Gets a new list of devices by terminating and restarting portaudio
/// Assumes that DeviceManager is only used on the main thread.
void DeviceManager::Rescan()
{
// get rid of the previous scan info
this->mInputDeviceSourceMaps.clear();
this->mOutputDeviceSourceMaps.clear();
// if we are doing a second scan then restart portaudio to get new devices
if (m_inited) {
// check to see if there is a stream open - can happen if monitoring,
// but otherwise Rescan() should not be available to the user.
if (gAudioIO) {
if (gAudioIO->IsMonitoring())
{
gAudioIO->StopStream();
while (gAudioIO->IsBusy())
wxMilliSleep(100);
}
}
// restart portaudio - this updates the device list
Pa_Terminate();
Pa_Initialize();
}
int nDevices = Pa_GetDeviceCount();
//The heirarchy for devices is Host/device/source.
//Some newer systems aggregate this.
//So we need to call port mixer for every device to get the sources
for (int i = 0; i < nDevices; i++) {
const PaDeviceInfo *info = Pa_GetDeviceInfo(i);
if (info->maxOutputChannels > 0) {
AddSources(i, info->defaultSampleRate, &mOutputDeviceSourceMaps, 0);
}
if (info->maxInputChannels > 0) {
AddSources(i, info->defaultSampleRate, &mInputDeviceSourceMaps, 1);
}
}
// If this was not an initial scan update each device toolbar.
// Hosts may have disappeared or appeared so a complete repopulate is needed.
if (m_inited) {
DeviceToolBar *dt;
for (size_t i = 0; i < gAudacityProjects.GetCount(); i++) {
dt = gAudacityProjects[i]->GetDeviceToolBar();
dt->RefillCombos();
}
}
m_inited = true;
}