private void WriteWaveHeader(StreamMarshaler sm)
{
char[] array = new char[4]
{
'R',
'I',
'F',
'F'
};
byte[] array2 = _audioFormat.FormatSpecificData();
sm.WriteArray(array, array.Length);
sm.WriteStream((uint)(_rawAudioData.Length + 38 + array2.Length));
char[] array3 = new char[4]
{
'W',
'A',
'V',
'E'
};
sm.WriteArray(array3, array3.Length);
char[] array4 = new char[4]
{
'f',
'm',
't',
' '
};
sm.WriteArray(array4, array4.Length);
sm.WriteStream(18 + array2.Length);
sm.WriteStream((ushort)_audioFormat.EncodingFormat);
sm.WriteStream((ushort)_audioFormat.ChannelCount);
sm.WriteStream(_audioFormat.SamplesPerSecond);
sm.WriteStream(_audioFormat.AverageBytesPerSecond);
sm.WriteStream((ushort)_audioFormat.BlockAlign);
sm.WriteStream((ushort)_audioFormat.BitsPerSample);
sm.WriteStream((ushort)array2.Length);
if (array2.Length != 0)
{
sm.WriteStream(array2);
}
char[] array5 = new char[4]
{
'd',
'a',
't',
'a'
};
sm.WriteArray(array5, array5.Length);
sm.WriteStream(_rawAudioData.Length);
}
internal SpAudioStreamWrapper(Stream stream, SpeechAudioFormatInfo audioFormat)
: base(stream)
{
_formatType = SAPIGuids.SPDFID_WaveFormatEx;
if (audioFormat != null)
{
WAVEFORMATEX wAVEFORMATEX = new WAVEFORMATEX
{
wFormatTag = (short)audioFormat.EncodingFormat,
nChannels = (short)audioFormat.ChannelCount,
nSamplesPerSec = audioFormat.SamplesPerSecond,
nAvgBytesPerSec = audioFormat.AverageBytesPerSecond,
nBlockAlign = (short)audioFormat.BlockAlign,
wBitsPerSample = (short)audioFormat.BitsPerSample,
cbSize = (short)audioFormat.FormatSpecificData().Length
};
_wfx = wAVEFORMATEX.ToBytes();
if (wAVEFORMATEX.cbSize == 0)
{
byte[] array = new byte[_wfx.Length + wAVEFORMATEX.cbSize];
Array.Copy(_wfx, array, _wfx.Length);
Array.Copy(audioFormat.FormatSpecificData(), 0, array, _wfx.Length, wAVEFORMATEX.cbSize);
_wfx = array;
}
}
else
{
try
{
GetStreamOffsets(stream);
}
catch (IOException)
{
throw new FormatException(SR.Get(SRID.SynthesizerInvalidWaveFile));
}
}
}
internal SpAudioStreamWrapper(Stream stream, SpeechAudioFormatInfo audioFormat) : base(stream)
{
// Assume PCM to start with
_formatType = SAPIGuids.SPDFID_WaveFormatEx;
if (audioFormat != null)
{
WAVEFORMATEX wfx = new();
wfx.wFormatTag = (short)audioFormat.EncodingFormat;
wfx.nChannels = (short)audioFormat.ChannelCount;
wfx.nSamplesPerSec = audioFormat.SamplesPerSecond;
wfx.nAvgBytesPerSec = audioFormat.AverageBytesPerSecond;
wfx.nBlockAlign = (short)audioFormat.BlockAlign;
wfx.wBitsPerSample = (short)audioFormat.BitsPerSample;
wfx.cbSize = (short)audioFormat.FormatSpecificData().Length;
_wfx = wfx.ToBytes();
if (wfx.cbSize == 0)
{
byte[] wfxTemp = new byte[_wfx.Length + wfx.cbSize];
Array.Copy(_wfx, wfxTemp, _wfx.Length);
Array.Copy(audioFormat.FormatSpecificData(), 0, wfxTemp, _wfx.Length, wfx.cbSize);
_wfx = wfxTemp;
}
}
else
{
try
{
GetStreamOffsets(stream);
}
catch (IOException)
{
throw new FormatException(SR.Get(SRID.SynthesizerInvalidWaveFile));
}
}
}
