/**
* Writes the header and data to a plain text file.
*
* @param hdr const reference to feature header
* @param featureArray const reference to feature data array
*/
public override bool Write(FeatureHeader hdr, double[][] featureArray)
{
if (featureArray.Length == 0)
{
throw new Exception("Empty feature array!");
}
TextWriter ofs = File.CreateText(m_filename);
ofs.WriteLine("# Generated with: Aquila v. {0}", Dtw.VERSION);
ofs.WriteLine("# Original wave file: {0}", hdr.wavFilename);
ofs.WriteLine("# Audio sampling frequency: ?????");
ofs.WriteLine("# Frame length: {0}", hdr.frameLength);
ofs.WriteLine("# Frames count: {0}", featureArray.Length);
ofs.WriteLine("# Parameters type: {0}", hdr.type);
ofs.WriteLine("# Parameters per frame: {0}", hdr.paramsPerFrame);
ofs.WriteLine("# Save timestamp: {0}", hdr.timestamp);
//ofs.precision(13);
for (int i = 0, size = featureArray.Length; i < size; ++i)
{
ofs.WriteLine("#frame: {0}", i);
for (int j = 0; j < hdr.paramsPerFrame; ++j)
{
ofs.WriteLine("{0}", featureArray[i][j]);
}
}
ofs.Close();
return true;
}
/**
* Writes the header and data to a plain text file.
*
* @param hdr const reference to feature header
* @param featureArray const reference to feature data array
*/
public override bool Write(FeatureHeader hdr, double[][] featureArray)
{
if (featureArray.Length == 0)
{
throw new Exception("Empty feature array!");
}
TextWriter ofs = File.CreateText(m_filename);
ofs.WriteLine("# Generated with: Aquila v. {0}", Dtw.VERSION);
ofs.WriteLine("# Original wave file: {0}", hdr.wavFilename);
ofs.WriteLine("# Audio sampling frequency: ?????");
ofs.WriteLine("# Frame length: {0}", hdr.frameLength);
ofs.WriteLine("# Frames count: {0}", featureArray.Length);
ofs.WriteLine("# Parameters type: {0}", hdr.type);
ofs.WriteLine("# Parameters per frame: {0}", hdr.paramsPerFrame);
ofs.WriteLine("# Save timestamp: {0}", hdr.timestamp);
//ofs.precision(13);
for (int i = 0, size = featureArray.Length; i < size; ++i)
{
ofs.WriteLine("#frame: {0}", i);
for (int j = 0; j < hdr.paramsPerFrame; ++j)
{
ofs.WriteLine("{0}", featureArray[i][j]);
}
}
ofs.Close();
return(true);
}
/**
* Saves calculated feature to a writer object (usually to file).
*
* @param writer non-const reference to a writer object
*/
public bool Save(FeatureWriter writer)
{
FeatureHeader hdr = new FeatureHeader();
hdr.type = type;
hdr.frameLength = m_frameLength;
hdr.paramsPerFrame = m_paramsPerFrame;
hdr.wavFilename = wavFilename;
hdr.timestamp = DateTime.Now;
return(writer.Write(hdr, featureArray));
}
/**
* Reads feature from a reader object.
*
* @param reader non-const reference to a reader object
*/
public bool Read(ref FeatureReader reader)
{
FeatureHeader hdr = new FeatureHeader();
//featureArray.Clear();
if (reader.Read(ref hdr, ref featureArray))
{
type = hdr.type;
m_frameLength = hdr.frameLength;
m_paramsPerFrame = hdr.paramsPerFrame;
wavFilename = hdr.wavFilename;
timestamp = hdr.timestamp;
return(true);
}
else
{
return(false);
}
}
/**
* Creates an extractor object according to header information.
*
* This method is a wrapper for the main getExtractor method.
*
* @param hdr feature header
* @return pointer to object of one of Extractor-derived classes
*/
public static Extractor GetExtractor(FeatureHeader hdr)
{
return(GetExtractor(hdr.type, hdr.frameLength, hdr.paramsPerFrame));
}
/**
* Creates an extractor object according to header information.
*
* This method is a wrapper for the main getExtractor method.
*
* @param hdr feature header
* @return pointer to object of one of Extractor-derived classes
*/
public static Extractor GetExtractor(FeatureHeader hdr)
{
return GetExtractor(hdr.type, hdr.frameLength, hdr.paramsPerFrame);
}
/**
* Reads feature from a reader object.
*
* @param reader non-const reference to a reader object
*/
public bool Read(ref FeatureReader reader)
{
FeatureHeader hdr = new FeatureHeader();
//featureArray.Clear();
if (reader.Read(ref hdr, ref featureArray))
{
type = hdr.type;
m_frameLength = hdr.frameLength;
m_paramsPerFrame = hdr.paramsPerFrame;
wavFilename = hdr.wavFilename;
timestamp = hdr.timestamp;
return true;
}
else
{
return false;
}
}
/**
* Saves calculated feature to a writer object (usually to file).
*
* @param writer non-const reference to a writer object
*/
public bool Save(FeatureWriter writer)
{
FeatureHeader hdr = new FeatureHeader();
hdr.type = type;
hdr.frameLength = m_frameLength;
hdr.paramsPerFrame = m_paramsPerFrame;
hdr.wavFilename = wavFilename;
hdr.timestamp = DateTime.Now;
return writer.Write(hdr, featureArray);
}
