WASAPIDeviceBase (const ComSmartPtr <IMMDevice>& d, const bool exclusiveMode)
: device (d),
sampleRate (0),
defaultSampleRate (0),
numChannels (0),
actualNumChannels (0),
minBufferSize (0),
defaultBufferSize (0),
latencySamples (0),
useExclusiveMode (exclusiveMode),
sampleRateHasChanged (false)
{
clientEvent = CreateEvent (0, false, false, _T("JuceWASAPI"));
ComSmartPtr <IAudioClient> tempClient (createClient());
if (tempClient == nullptr)
return;
REFERENCE_TIME defaultPeriod, minPeriod;
if (! check (tempClient->GetDevicePeriod (&defaultPeriod, &minPeriod)))
return;
WAVEFORMATEX* mixFormat = nullptr;
if (! check (tempClient->GetMixFormat (&mixFormat)))
return;
WAVEFORMATEXTENSIBLE format;
copyWavFormat (format, mixFormat);
CoTaskMemFree (mixFormat);
actualNumChannels = numChannels = format.Format.nChannels;
defaultSampleRate = format.Format.nSamplesPerSec;
minBufferSize = refTimeToSamples (minPeriod, defaultSampleRate);
defaultBufferSize = refTimeToSamples (defaultPeriod, defaultSampleRate);
rates.addUsingDefaultSort (defaultSampleRate);
static const int ratesToTest[] = { 44100, 48000, 88200, 96000, 176400, 192000 };
for (int i = 0; i < numElementsInArray (ratesToTest); ++i)
{
if (ratesToTest[i] == defaultSampleRate)
continue;
format.Format.nSamplesPerSec = (DWORD) ratesToTest[i];
if (SUCCEEDED (tempClient->IsFormatSupported (useExclusiveMode ? AUDCLNT_SHAREMODE_EXCLUSIVE : AUDCLNT_SHAREMODE_SHARED,
(WAVEFORMATEX*) &format, 0)))
if (! rates.contains (ratesToTest[i]))
rates.addUsingDefaultSort (ratesToTest[i]);
}
}
WASAPIDeviceBase (const ComSmartPtr <IMMDevice>& device_)
: device (device_),
sampleRate (0),
numChannels (0),
actualNumChannels (0),
defaultSampleRate (0),
minBufferSize (0),
defaultBufferSize (0),
latencySamples (0)
{
clientEvent = CreateEvent (0, false, false, _T("JuceWASAPI"));
ComSmartPtr <IAudioClient> tempClient (createClient());
if (tempClient == 0)
return;
REFERENCE_TIME defaultPeriod, minPeriod;
if (! OK (tempClient->GetDevicePeriod (&defaultPeriod, &minPeriod)))
return;
WAVEFORMATEX* mixFormat = 0;
if (! OK (tempClient->GetMixFormat (&mixFormat)))
return;
WAVEFORMATEXTENSIBLE format;
wasapi_copyWavFormat (format, mixFormat);
CoTaskMemFree (mixFormat);
actualNumChannels = numChannels = format.Format.nChannels;
defaultSampleRate = format.Format.nSamplesPerSec;
minBufferSize = wasapi_refTimeToSamples (minPeriod, defaultSampleRate);
defaultBufferSize = wasapi_refTimeToSamples (defaultPeriod, defaultSampleRate);
FloatElementComparator<double> comparator;
rates.addSorted (comparator, defaultSampleRate);
static const double ratesToTest[] = { 44100.0, 48000.0, 88200.0, 96000.0 };
for (int i = 0; i < numElementsInArray (ratesToTest); ++i)
{
if (ratesToTest[i] == defaultSampleRate)
continue;
format.Format.nSamplesPerSec = roundDoubleToInt (ratesToTest[i]);
if (SUCCEEDED (tempClient->IsFormatSupported (AUDCLNT_SHAREMODE_SHARED, (WAVEFORMATEX*) &format, 0)))
if (! rates.contains (ratesToTest[i]))
rates.addSorted (comparator, ratesToTest[i]);
}
}