public static void ReadChannelData(Stream file, FMTChunk fmt, out DATAChunk[] channels)
{
byte[] b = new byte[4];
file.Read(b, 0, 4);
char[] id = Encoding.ASCII.GetChars(b);
file.Read(b, 0, 4);
var Size = BitConverter.ToInt32(b, 0);
channels = new DATAChunk[fmt.NumChannels];
var buf = new byte[fmt.BitsPerSample / 8];
for (int i = 0; i < fmt.NumChannels; i++)
{
channels[i].Data = new byte[Size / fmt.NumChannels];
channels[i].Handle =
System.Runtime.InteropServices.GCHandle.Alloc(channels[i].Data, System.Runtime.InteropServices.GCHandleType.Pinned);
channels[i].Size = Size / fmt.NumChannels;
}
int index = 0;
for (int j = 0; j < Size / fmt.NumChannels; j += 1)
{
if (j == 0)
{
file.Read(channels[index].Data, j, fmt.BitsPerSample / 8);
}
file.Read(channels[index].Data, j - (1 * index), fmt.BitsPerSample / 8);
index += 1;
if (index == fmt.NumChannels)
{
index = 0;
}
}
}
public static DATAChunk ReadData(Stream file)
{
file.Position = 36;
DATAChunk data = new DATAChunk();
byte[] b = new byte[4];
file.Read(b, 0, 4);
char[] id = Encoding.ASCII.GetChars(b);
if (Encoding.ASCII.GetString(b) != "data")
{
file.Read(b, 0, 4);
id = Encoding.ASCII.GetChars(b);
}
data.ID = id;
file.Read(b, 0, 4);
data.Size = BitConverter.ToInt32(b, 0);
b = new byte[data.Size];
file.Read(b, 0, data.Size);
data.Data = b;
data.Handle = System.Runtime.InteropServices.GCHandle.Alloc(data.Data, System.Runtime.InteropServices.GCHandleType.Pinned);
return(data);
}
