public void Stop()
{
try
{
if (mBufferedStream != null)
{
mBufferedStream.Dispose();
mBufferedStream = null;
}
if (mConvStream != null)
{
mConvStream.Dispose();
mConvStream = null;
}
}
catch (Exception ex)
{
SubDebug(string.Format("Converter stop fail.\t{0}", ex.Message));
}
}
public void PrepareConvert(EVLVoiceFormat format)
{
SubDebug(string.Format("Call PrepareConvert,source wave format:{0}", format));
Stop();
try
{
mFormat = format;
switch (mFormat)
{
case EVLVoiceFormat.MT_MSGSM:
mSrcWaveFormat = new Gsm610WaveFormat();
break;
case EVLVoiceFormat.MT_MP3_32K_STEREO:
mSrcWaveFormat = new Mp3WaveFormat(8000, 2, 288, 32000);
break;
default:
SubDebug(string.Format("Format not support,source wave format:{0}", mFormat));
return;
}
if (mSrcWaveFormat.Channels == 2)
{
mPcmWaveFormat = WaveFormat.CreateCustomFormat(WaveFormatEncoding.Pcm, 8000, 2, 32000, 4, 16);
}
else
{
mPcmWaveFormat = WaveFormat.CreateCustomFormat(WaveFormatEncoding.Pcm, 8000, 1, 16000, 2, 16);
}
mBufferedStream = new BufferedWaveStream(mSrcWaveFormat);
mConvStream = new WaveFormatConversionStream(mPcmWaveFormat, mBufferedStream);
SubDebug(string.Format("Convertor prepared,source wave format:{0},dest wave format:{1}", mSrcWaveFormat, mPcmWaveFormat));
}
catch (Exception ex)
{
SubDebug(string.Format("PrepareConvert fail.\t{0}", ex.Message));
}
}
