public static WaveAudio LoadWave(BinaryReader reader)
{
var waveInfo = new WaveInfo();
var signature = new string(reader.ReadChars(4));
if (signature != "RIFF")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
var riffChunkSize = reader.ReadInt32();
var format = new string(reader.ReadChars(4));
if (format != "WAVE")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
// WAVE header
var formatSignature = new string(reader.ReadChars(4));
if (formatSignature != "fmt ")
{
throw new NotSupportedException("Specified wave file is not supported.");
}
var formatChunkSize = reader.ReadInt32();
var audioFormat = reader.ReadInt16();
var numChannels = reader.ReadInt16();
var sampleRate = reader.ReadInt32();
var byteRate = reader.ReadInt32();
var blockAlign = reader.ReadInt16();
var bitsPerSample = reader.ReadInt16();
var listsFound = 0;
var maxLists = 100;
while (true)
{
string dataSignature = new string(reader.ReadChars(4));
if (dataSignature == "LIST")
{
var listChunkSize = BitConverter.ToInt32(reader.ReadBytes(4), 0);
var listStuff = reader.ReadBytes(listChunkSize);
listsFound++;
if (listsFound > maxLists)
{
throw new Exception("wav file contained more than " + maxLists + " LIST chunks.");
}
}
else if (dataSignature == "data")
{
break;
}
}
var dataChunkSize = reader.ReadInt32();
waveInfo.Channels = numChannels;
waveInfo.SampleRate = sampleRate;
waveInfo.BitDepth = bitsPerSample;
return(new WaveAudio(reader.ReadBytes((int)reader.BaseStream.Length), waveInfo));
}
public WaveAudio(byte[] waveData, WaveInfo waveInfo)
{
WaveData = waveData;
WaveInfo = waveInfo;
}