public override bool load()
{
if (File.Exists(myFilename) == false)
{
Warn.print("Cannot find file {0}", myFilename);
myState = SourceState.FAILED;
return(false);
}
using (FileStream waveFileStream = File.Open(myFilename, System.IO.FileMode.Open))
{
BinaryReader reader = new BinaryReader(waveFileStream);
int chunkID = reader.ReadInt32();
if (chunkID != 0x46464952)
{
Warn.print("{0} is not a RIFF formated file", myFilename);
myState = SourceState.FAILED;
return(false);
}
int fileSize = reader.ReadInt32();
int riffType = reader.ReadInt32();
if (riffType != 0x45564157) //"WAVE" in bytes
{
Warn.print("{0} is not a WAV", myFilename);
myState = SourceState.FAILED;
return(false);
}
int fmtID = reader.ReadInt32();
if (fmtID != 0x20746d66) //"fmt " in bytes
{
Warn.print("Cannot find valid fmt chunk in {0}", myFilename);
myState = SourceState.FAILED;
return(false);
}
int fmtSize = reader.ReadInt32();
if (fmtSize != 16)
{
Warn.print("{0} is not in 16 bit format", myFilename);
myState = SourceState.FAILED;
return(false);
}
int fmtCode = reader.ReadInt16();
if (fmtCode != 1) //PCM data
{
Warn.print("{0} is not in PCM format", myFilename);
myState = SourceState.FAILED;
return(false);
}
myNumChannels = reader.ReadInt16();
if (myIs3d == true && myNumChannels != 1)
{
Error.print("Unable to load stereo files for 3D capability");
myState = SourceState.FAILED;
return(false);
}
mySampleRate = reader.ReadInt32();
int fmtAvgBPS = reader.ReadInt32();
int fmtBlockAlign = reader.ReadInt16();
int bitDepth = reader.ReadInt16();
if (fmtSize == 18)
{
// Read any extra values
int fmtExtraSize = reader.ReadInt16();
reader.ReadBytes(fmtExtraSize);
}
int dataID = reader.ReadInt32();
if (dataID != 0x61746164) //"data" in bytes
{
Warn.print("Cannot find valid data chunk in file {0}", myFilename);
myState = SourceState.FAILED;
return(false);
}
int dataSize = reader.ReadInt32();
if (bitDepth != 16)
{
Warn.print("WAV files must be 16-bit PCM format");
myState = SourceState.FAILED;
return(false);
}
//read the data
byte[] data;
data = reader.ReadBytes(dataSize);
//convert to shorts
short[] audioData = new short[dataSize / 2];
for (int i = 0; i < dataSize / 2; i++)
{
audioData[i] = BitConverter.ToInt16(data, i * 2);
}
AudioBuffer buffer = new AudioBuffer(myNumChannels == 1 ? AudioBuffer.AudioFormat.MONO16 : AudioBuffer.AudioFormat.STEREO16, mySampleRate);
buffer.setData(audioData);
//put it in the audio system
buffer.buffer();
myBuffers.Add(buffer);
}
myState = Source.SourceState.LOADED;
Info.print("Loaded audio file: {0}", myFilename);
return(true);
}
public void addBuffer(AudioBuffer buffer)
{
myQueueMutex.WaitOne();
myStreamingBuffers.Enqueue(buffer);
myQueueMutex.ReleaseMutex();
}
