/**
* Reads raw data into the buffer.
*
* @param fs input file stream
* @param buffer pointer to data array
* @param bufferLength data buffer size
*/
private void LoadRawData(ref BinaryFile fs, short[] buffer, UInt32 bufferLength)
{
for (int i = 0; i < bufferLength; i++)
{
buffer[i] = (short)fs.ReadInt16();
}
}
public static void Read16Bit(BinaryFile waveFile, float[][] sound, int sampleCount, int channels)
{
for (int i = 0; i < sampleCount; i++)
{
for (int ic = 0; ic < channels; ic++)
{
float f = (float)waveFile.ReadInt16();
f = f / 32768.0f;
sound[ic][i] = f;
}
}
}
public static void Read16Bit(BinaryFile wavfile, double[][] sound, int samplecount, int channels)
{
#if DEBUG
Console.Write("Read16Bit...\n");
#endif
for (int i = 0; i < samplecount; i++)
{
for (int ic = 0; ic < channels; ic++)
{
double d = (double)wavfile.ReadInt16();
d = d / 32768.0;
sound[ic][i] = d;
}
}
}
public bool Read(string filePath)
{
if (File.Exists(filePath))
{
string fileName = Path.GetFileNameWithoutExtension(filePath);
PresetName = fileName;
BinaryFile bFile = new BinaryFile(filePath, BinaryFile.ByteOrder.BigEndian);
string firstChunkID = bFile.ReadString(4); // chunk ID = "FORM"
int ckSize = bFile.ReadInt32();
string formType = bFile.ReadString(4);
// read first data chunk
string chunkID = bFile.ReadString(4);
// if chunkID == "COMT" then CommentsChunk
if (chunkID.Equals("COMT"))
{
long curposTmpComt = bFile.GetPosition();
bFile.Seek(curposTmpComt - 4);
// CommentsChunk
string chunkIDComt = bFile.ReadString(4); // chunk ID = "COMT"
int chunkSizeComt = bFile.ReadInt32();
int numComments = bFile.ReadUInt16();
long curposTmpComt2 = bFile.GetPosition();
for (int i = 0; i < numComments; i++)
{
int commentTimestamp = (int)bFile.ReadUInt32();
string marker = bFile.ReadString(4);
int count = (int)bFile.ReadByte();
comments.Add(bFile.ReadString(count));
}
bFile.Seek(curposTmpComt2 + chunkSizeComt - 2);
}
string chunkID2 = bFile.ReadString(4);
// if chunkID2 == "COMM" then CommonChunk
if (chunkID2.Equals("COMM"))
{
long curposTmpComm = bFile.GetPosition();
bFile.Seek(curposTmpComm - 4);
// CommonChunk
string chunkIDComm = bFile.ReadString(4); // chunk ID = "COMM"
int chunkSizeComm = bFile.ReadInt32();
channels = bFile.ReadInt16();
numSampleFrames = (int)bFile.ReadUInt32();
bitsPerSample = bFile.ReadInt16();
// read IEEE 80-bit extended double precision
byte[] sampleRateBytes = bFile.ReadBytes(0, 10, BinaryFile.ByteOrder.LittleEndian);
double sampleRateDouble = IEEE.ConvertFromIeeeExtended(sampleRateBytes);
sampleRate = (int)sampleRateDouble;
}
string chunkID3 = bFile.ReadString(4);
// if chunkID3 == "SSND" then SoundDataChunk
if (chunkID3.Equals("SSND"))
{
long curposTmpSsnd = bFile.GetPosition();
bFile.Seek(curposTmpSsnd - 4);
// SoundDataChunk
string chunkIDSsnd = bFile.ReadString(4); // chunk ID = "SSND"
int chunkSizeSsnd = bFile.ReadInt32();
int offset = (int)bFile.ReadUInt32();
int blocksize = (int)bFile.ReadUInt32();
byte[] data = bFile.ReadBytes(offset, chunkSizeSsnd - 8, BinaryFile.ByteOrder.LittleEndian);
// swap waveform data
WaveformData = SwapAiffEndian(data);
}
bFile.Close();
return(true);
}
else
{
return(false);
}
}
