private void buttonDeviceSelect_Click(object sender, RoutedEventArgs e)
{
int latencyMillisec = -1;
try {
latencyMillisec = Int32.Parse(textBoxLatency.Text);
} catch (Exception ex) {
textBoxLog.Text += string.Format("{0}\r\n", ex);
}
if (latencyMillisec <= 0)
{
latencyMillisec = DEFAULT_OUTPUT_LATENCY_MS;
textBoxLatency.Text = string.Format("{0}", DEFAULT_OUTPUT_LATENCY_MS);
}
try {
var bytes = Int32.Parse(textBoxRecMaxMB.Text) * 1024L * 1024L;
if (0x7fffffff < bytes)
{
string s = string.Format("E: 録音バッファーサイズを2047MB以下に減らして下さい。\r\n");
textBoxLog.Text += s;
MessageBox.Show(s);
return;
}
m_bufferBytes = (int)bytes;
} catch (Exception ex) {
textBoxLog.Text += string.Format("{0}\r\n", ex);
}
if (m_bufferBytes < 0)
{
m_bufferBytes = DEFAULT_BUFFER_SIZE_MB * 1024 * 1024;
textBoxRecMaxMB.Text = string.Format("{0}", DEFAULT_BUFFER_SIZE_MB);
}
try {
mCapturedPcmData = null;
mCapturedPcmData = new byte[m_bufferBytes];
} catch (Exception ex) {
textBoxLog.Text += string.Format("{0}\r\n", ex);
MessageBox.Show(string.Format("E: おそらくメモリ不足ですので、録音バッファーサイズを減らして下さい。\r\n{0}", ex));
return;
}
int hr = wasapi.ChooseDevice(listBoxDevices.SelectedIndex);
textBoxLog.Text += string.Format("wasapi.ChooseDevice({0}) {1:X8}\r\n",
listBoxDevices.SelectedItem.ToString(), hr);
if (hr < 0)
{
return;
}
WasapiCS.DataFeedMode dfm = WasapiCS.DataFeedMode.EventDriven;
if (true == radioButtonTimerDriven.IsChecked)
{
dfm = WasapiCS.DataFeedMode.TimerDriven;
}
wasapi.SetDataFeedMode(dfm);
wasapi.SetLatencyMillisec(latencyMillisec);
hr = wasapi.Setup(mSamplingFrequency, mSampleFormat, mNumChannels);
textBoxLog.Text += string.Format("wasapi.Setup({0}, {1}, {2}, {3}) {4:X8}\r\n",
mSamplingFrequency, mSampleFormat, latencyMillisec, dfm, hr);
if (hr < 0)
{
wasapi.Unsetup();
textBoxLog.Text += string.Format("wasapi.Unsetup()\r\n");
CreateDeviceList();
string sDfm = DfmToStr(dfm);
string s = string.Format("E: wasapi.Setup({0}, {1}, {2}, {3})失敗。{4:X8}\nこのプログラムのバグか、オーディオデバイスが{0}Hz {1} レイテンシー{2}ms {3}に対応していないのか、どちらかです。\r\n",
mSamplingFrequency, mSampleFormat,
latencyMillisec, sDfm, hr);
textBoxLog.Text += s;
MessageBox.Show(s);
return;
}
buttonDeviceSelect.IsEnabled = false;
buttonDeselect.IsEnabled = true;
buttonRec.IsEnabled = true;
buttonInspectDevice.IsEnabled = false;
groupBoxWasapiSettings.IsEnabled = false;
}