private static byte[] LoadWave(BinaryReader reader, out ALFormat format, out int size, out int frequency)
{
if (new string(reader.ReadChars(4)) != "RIFF")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
reader.ReadInt32();
if (new string(reader.ReadChars(4)) != "WAVE")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
for (string str = new string(reader.ReadChars(4)); str != "fmt "; str = new string(reader.ReadChars(4)))
{
reader.ReadBytes(reader.ReadInt32());
}
int num1 = reader.ReadInt32();
int num2 = (int)reader.ReadUInt16();
int channels = (int)reader.ReadUInt16();
int num3 = (int)reader.ReadUInt32();
int num4 = (int)reader.ReadUInt32();
int num5 = (int)reader.ReadUInt16();
int bits = (int)reader.ReadUInt16();
if (num1 > 16)
{
reader.ReadBytes(num1 - 16);
}
string str1;
for (str1 = new string(reader.ReadChars(4)); str1.ToLower(CultureInfo.InvariantCulture) != "data"; str1 = new string(reader.ReadChars(4)))
{
reader.ReadBytes(reader.ReadInt32());
}
if (str1 != "data")
{
throw new NotSupportedException("Specified wave file is not supported.");
}
int num6 = reader.ReadInt32();
frequency = num3;
format = AudioLoader.GetSoundFormat(channels, bits, num2 == 2);
byte[] numArray;
if (reader.BaseStream.Length <= 11072L)
{
numArray = new byte[0];
size = 0;
}
else
{
numArray = reader.ReadBytes((int)reader.BaseStream.Length);
size = num6 / num5 * num5;
}
return(numArray);
}
private void PlatformInitializeFormat(byte[] header, byte[] buffer, int bufferSize, int loopStart, int loopLength)
{
var wavFormat = BitConverter.ToInt16(header, 0);
var channels = BitConverter.ToInt16(header, 2);
var sampleRate = BitConverter.ToInt32(header, 4);
var blockAlignment = BitConverter.ToInt16(header, 12);
var bitsPerSample = BitConverter.ToInt16(header, 14);
var format = AudioLoader.GetSoundFormat(wavFormat, channels, bitsPerSample);
PlatformInitializeBuffer(buffer, bufferSize, format, channels, sampleRate, blockAlignment, bitsPerSample, loopStart, loopLength);
}
private static byte[] LoadWave(BinaryReader reader, out ALFormat format, out int size, out int frequency)
{
if (new string(reader.ReadChars(4)) != "RIFF")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
reader.ReadInt32();
if (new string(reader.ReadChars(4)) != "WAVE")
{
throw new NotSupportedException("Specified stream is not a wave file.");
}
for (string str = new string(reader.ReadChars(4)); str != "fmt "; str = new string(reader.ReadChars(4)))
{
reader.ReadBytes(reader.ReadInt32());
}
int num1 = reader.ReadInt32();
int num2 = (int)reader.ReadInt16();
int channels = (int)reader.ReadInt16();
int num3 = reader.ReadInt32();
reader.ReadInt32();
int num4 = (int)reader.ReadInt16();
int bits = (int)reader.ReadInt16();
if (num1 > 16)
{
reader.ReadBytes(num1 - 16);
}
string str1;
for (str1 = new string(reader.ReadChars(4)); str1.ToLower() != "data"; str1 = new string(reader.ReadChars(4)))
{
reader.ReadBytes(reader.ReadInt32());
}
if (str1 != "data")
{
throw new NotSupportedException("Specified wave file is not supported.");
}
int num5 = reader.ReadInt32();
frequency = num3;
format = AudioLoader.GetSoundFormat(channels, bits);
byte[] numArray = reader.ReadBytes((int)reader.BaseStream.Length);
size = num5;
if (num2 != 1)
{
Console.WriteLine("Wave compression is not supported.");
size = 0;
}
return(numArray);
}
private void PlatformInitializeIeeeFloat(byte[] buffer, int offset, int count, int sampleRate, AudioChannels channels, int loopStart, int loopLength)
{
if (!OpenALSoundController.GetInstance.SupportsIeee)
{
// If 32-bit IEEE float is not supported, convert to 16-bit signed PCM
buffer = AudioLoader.ConvertFloatTo16(buffer, offset, count);
PlatformInitializePcm(buffer, 0, buffer.Length, 16, sampleRate, channels, loopStart, loopLength);
return;
}
var format = AudioLoader.GetSoundFormat(AudioLoader.FormatIeee, (int)channels, 32);
// bind buffer
SoundBuffer = new OALSoundBuffer();
SoundBuffer.BindDataBuffer(buffer, format, count, sampleRate);
}
private void PlatformInitializePcm(byte[] buffer, int offset, int count, int sampleBits, int sampleRate, AudioChannels channels, int loopStart, int loopLength)
{
if (sampleBits == 24)
{
// Convert 24-bit signed PCM to 16-bit signed PCM
buffer = AudioLoader.Convert24To16(buffer, offset, count);
offset = 0;
count = buffer.Length;
sampleBits = 16;
}
var format = AudioLoader.GetSoundFormat(AudioLoader.FormatPcm, (int)channels, sampleBits);
// bind buffer
SoundBuffer = new OALSoundBuffer();
SoundBuffer.BindDataBuffer(buffer, format, count, sampleRate);
}
private void PlatformInitializeIma4(byte[] buffer, int offset, int count, int sampleRate, AudioChannels channels, int blockAlignment, int loopStart, int loopLength)
{
if (!OpenALSoundController.GetInstance.SupportsIma4)
{
// If IMA/ADPCM is not supported, convert to 16-bit signed PCM
buffer = AudioLoader.ConvertIma4ToPcm(buffer, offset, count, (int)channels, blockAlignment);
PlatformInitializePcm(buffer, 0, buffer.Length, 16, sampleRate, channels, loopStart, loopLength);
return;
}
var format = AudioLoader.GetSoundFormat(AudioLoader.FormatIma4, (int)channels, 0);
int sampleAlignment = AudioLoader.SampleAlignment(format, blockAlignment);
// bind buffer
SoundBuffer = new OALSoundBuffer();
SoundBuffer.BindDataBuffer(buffer, format, count, sampleRate, sampleAlignment);
}
private void PlatformInitializeAdpcm(byte[] buffer, int offset, int count, int sampleRate, AudioChannels channels, int blockAlignment, int loopStart, int loopLength)
{
if (!OpenALSoundController.GetInstance.SupportsAdpcm)
{
// If MS-ADPCM is not supported, convert to 16-bit signed PCM
buffer = AudioLoader.ConvertMsAdpcmToPcm(buffer, offset, count, (int)channels, blockAlignment);
PlatformInitializePcm(buffer, 0, buffer.Length, 16, sampleRate, channels, loopStart, loopLength);
return;
}
var format = AudioLoader.GetSoundFormat(AudioLoader.FormatMsAdpcm, (int)channels, 0);
int sampleAlignment = AudioLoader.SampleAlignment(format, blockAlignment);
// bind buffer
SoundBuffer = new OALSoundBuffer();
// Buffer length must be aligned with the block alignment
int alignedCount = count - (count % blockAlignment);
SoundBuffer.BindDataBuffer(buffer, format, alignedCount, sampleRate, sampleAlignment);
}
