public WaveInDevice(int liDevice, Win32.WaveFormat loFormat, int liBufferSize)
{
m_BufferSize = liBufferSize;
// CallBack einrichten
int liReplyCode = Win32.MM_Win32.waveInOpen(out m_DeviceHandle, liDevice, loFormat, m_BufferProc, 0, Win32.MM_Win32.CALLBACK_FUNCTION);
CheckErrorCode(liReplyCode);
}
public WaveOutDevice(int liDevice, Win32.WaveFormat loFormat, int liBufferSize)
{
m_ZeroBase = (loFormat.BitRate == 8 ? (byte)128 : (byte)0);
m_BufferSize = liBufferSize;
// CallBack einrichten
int liReplyCode = Win32.MM_Win32.waveOutOpen(out m_DeviceHandle, liDevice, loFormat, m_BufferProc, 0, Win32.MM_Win32.CALLBACK_FUNCTION);
CheckErrorCode(liReplyCode);
}
private void ReadHeader()
{
BinaryReader loReader = new BinaryReader(m_Stream);
string lsFormat = ReadChunk(loReader); // Ersten Block lesen
if (lsFormat != "RIFF")
{
throw new Exception("Invalid file format. '" + lsFormat + "' not supported.");
}
loReader.ReadInt32(); // Länge des Headers
lsFormat = ReadChunk(loReader); // Ersten Block lesen
if (lsFormat != "WAVE")
{
throw new Exception("Invalid file format. '" + lsFormat + "' not supported.");
}
lsFormat = ReadChunk(loReader); // Ersten Block lesen
if (lsFormat != "fmt ")
{
throw new Exception("Invalid file format. '" + lsFormat + "' not supported.");
}
m_Format = new Win32.WaveFormat(loReader, true); // Mit Daten aus Stream initialisieren
// Position in Datei ausrichten
while ((m_Stream.Position < m_Stream.Length) && (loReader.ReadByte() != (byte)'d'))
{
;
}
if (m_Stream.Position >= m_Stream.Length)
{
throw new Exception("Invalid file format. End of file.");
}
loReader.ReadInt32(); // Länge der Extension
m_Length = m_Stream.Length - m_Stream.Position;
m_DataPos = m_Stream.Position; // Position der Daten setzen
Position = 0;
}
private void WriteHeader(Win32.WaveFormat loFormat)
{
BinaryWriter loWriter = new BinaryWriter(m_Stream);
loWriter.Write(System.Text.Encoding.ASCII.GetBytes("RIFF"));
loWriter.Write((uint)38);
loWriter.Write(System.Text.Encoding.ASCII.GetBytes("WAVE"));
loWriter.Write(System.Text.Encoding.ASCII.GetBytes("fmt "));
m_Format = new Win32.WaveFormat(); // Mit Daten aus Stream initialisieren
m_Format.WriteFormat(loWriter, true);
loWriter.Write(System.Text.Encoding.ASCII.GetBytes("data"));
loWriter.Write((uint)0);
m_Length = 0;
m_DataPos = m_Stream.Position; // Position der Daten setzen
Position = 0;
}
public WaveStreamWriter(Stream loStream, Win32.WaveFormat loFormat)
{
m_Stream = loStream;
WriteHeader(loFormat);
}
public WaveStreamWriter(string lsFile, Win32.WaveFormat loFormat)
{
m_Stream = (Stream)(new FileStream(lsFile, FileMode.Create, FileAccess.Write, FileShare.Write));
WriteHeader(loFormat);
}
