protected override bool BufferData(Stream baseStream, Queue <byte> data)
{
if (dataSize <= 0)
{
return(true);
}
var chunk = Chunk.Read(baseStream);
for (var n = 0; n < chunk.CompressedSize; n++)
{
var b = baseStream.ReadUInt8();
var t = DecodeSample(b, ref index, ref currentSample);
data.Enqueue((byte)t);
data.Enqueue((byte)(t >> 8));
baseOffset += 2;
if (baseOffset < outputSize)
{
/* possible that only half of the final byte is used! */
t = DecodeSample((byte)(b >> 4), ref index, ref currentSample);
data.Enqueue((byte)t);
data.Enqueue((byte)(t >> 8));
baseOffset += 2;
}
}
dataSize -= 8 + chunk.CompressedSize;
return(dataSize <= 0);
}
public static bool LoadSound(Stream s, out byte[] rawData, out int sampleRate)
{
rawData = null;
sampleRate = s.ReadUInt16();
var dataSize = s.ReadInt32();
var outputSize = s.ReadInt32();
var readFlag = s.ReadByte();
if (!Enum.IsDefined(typeof(SoundFlags), readFlag))
{
return(false);
}
var readFormat = s.ReadByte();
if (!Enum.IsDefined(typeof(SoundFormat), readFormat))
{
return(false);
}
var output = new byte[outputSize];
var offset = 0;
var index = 0;
var currentSample = 0;
while (dataSize > 0)
{
var chunk = Chunk.Read(s);
for (var n = 0; n < chunk.CompressedSize; n++)
{
var b = s.ReadUInt8();
var t = DecodeSample(b, ref index, ref currentSample);
output[offset++] = (byte)t;
output[offset++] = (byte)(t >> 8);
if (offset < outputSize)
{
/* possible that only half of the final byte is used! */
t = DecodeSample((byte)(b >> 4), ref index, ref currentSample);
output[offset++] = (byte)t;
output[offset++] = (byte)(t >> 8);
}
}
dataSize -= 8 + chunk.CompressedSize;
}
rawData = output;
return(true);
}