public static SoundBuffer Load(Stream s)
{
BinaryReader br = new BinaryReader(s);
var magic = new String(br.ReadChars(4));
if (magic != "RIFF")
{
throw new FormatException("Invalid WAV file");
}
UInt32 size = br.ReadUInt32();
var id = new String(br.ReadChars(4));
if (id != "WAVE")
{
throw new FormatException("Invalid WAV file");
}
var fmtSig = new String(br.ReadChars(4));
if (fmtSig != "fmt ")
{
throw new FormatException("Format Chunk in WAV file not found");
}
var fmtChunckSize = br.ReadInt32();
var audioFormat = br.ReadInt16();
var channels = br.ReadInt16();
var sampleRate = br.ReadInt32();
var byteRate = br.ReadInt32();
var blockAlign = br.ReadInt16();
var bitsPerSample = br.ReadInt16();;
var dataSig = new String(br.ReadChars(4));
if (dataSig != "data")
{
throw new FormatException("Data chunk in WAV file not found");
}
var dataChunckSize = br.ReadInt32();
var data = br.ReadBytes(dataChunckSize);
OpenTK.Audio.OpenAL.ALFormat format;
if (channels == 1 && bitsPerSample == 8)
{
format = OpenTK.Audio.OpenAL.ALFormat.Mono8;
}
else if (channels == 1 && bitsPerSample == 16)
{
format = OpenTK.Audio.OpenAL.ALFormat.Mono16;
}
else if (channels == 2 && bitsPerSample == 8)
{
format = OpenTK.Audio.OpenAL.ALFormat.Stereo8;
}
else if (channels == 2 && bitsPerSample == 16)
{
format = OpenTK.Audio.OpenAL.ALFormat.Stereo16;
}
else
{
throw new Exception("Unsupported audio format");
}
SoundBuffer sb = new SoundBuffer();
sb.BufferData(data, format, sampleRate);
return(sb);
}
