/// <summary>
/// The QueryRealD method returns all samples of the next file in the directory.
/// </summary>
/// <returns>All samples along with the format are returned where the format is placed in the last array.</returns>
public List <double[]> QueryRealD()
{
if (m_nFileIdx == m_rgstrFiles.Length)
{
return(null);
}
using (FileStream fs = File.OpenRead(m_rgstrFiles[m_nFileIdx]))
using (WAVReader wav = new WAVReader(fs))
{
m_nFileIdx++;
wav.ReadToEnd();
m_rgInfo = new Dictionary <string, float>();
m_rgInfo.Add("AveBytesPerSec", wav.Format.nAvgBytesPerSec);
m_rgInfo.Add("BlockAlign", wav.Format.nBlockAlign);
m_rgInfo.Add("Channels", wav.Format.nChannels);
m_rgInfo.Add("SamplesPerSec", wav.Format.nSamplesPerSec);
m_rgInfo.Add("BitsPerSample", wav.Format.wBitsPerSample);
m_rgInfo.Add("FormatTag", wav.Format.wFormatTag);
List <double[]> rgData = new List <double[]>();
for (int i = 0; i < wav.Samples[0].Length; i++)
{
rgData.Add(new double[] { wav.Samples[0][i], wav.Samples[1][i] });
}
return(rgData);
}
}
/// <summary>
/// The Query information returns information about the data queried such as header information.
/// </summary>
/// <returns>The information about the data is returned.</returns>
public Dictionary <string, float> QueryInfo()
{
if (m_rgInfo != null && m_rgInfo.Count > 0)
{
return(m_rgInfo);
}
if (m_nFileIdx == m_rgstrFiles.Length)
{
throw new Exception("Invalid field index.");
}
using (FileStream fs = File.OpenRead(m_rgstrFiles[m_nFileIdx]))
using (WAVReader wav = new WAVReader(fs))
{
wav.ReadToEnd(true);
m_rgInfo = new Dictionary <string, float>();
m_rgInfo.Add("AveBytesPerSec", wav.Format.nAvgBytesPerSec);
m_rgInfo.Add("BlockAlign", wav.Format.nBlockAlign);
m_rgInfo.Add("Channels", wav.Format.nChannels);
m_rgInfo.Add("SamplesPerSec", wav.Format.nSamplesPerSec);
m_rgInfo.Add("BitsPerSample", wav.Format.wBitsPerSample);
m_rgInfo.Add("FormatTag", wav.Format.wFormatTag);
return(m_rgInfo);
}
}
/// <summary>
/// The GetQuerySize method returns the size of the query as {1,1,filesize}.
/// </summary>
/// <returns>The query size is returned.</returns>
public List <int> GetQuerySize()
{
List <int> rgSize = new List <int>();
using (FileStream fs = File.OpenRead(m_rgstrFiles[m_nFileIdx]))
using (WAVReader wav = new WAVReader(fs))
{
wav.ReadToEnd(true);
rgSize.Add(1);
rgSize.Add((int)wav.Format.nChannels);
rgSize.Add(wav.SampleCount);
return(rgSize);
}
}
/// <summary>
/// The QueryReal method returns all samples of the next file in the directory.
/// </summary>
/// <returns>All samples along with the format are returned where the format is placed in the last array.</returns>
public List <double[]> QueryReal()
{
if (m_nFileIdx == m_rgstrFiles.Length)
{
return(null);
}
using (FileStream fs = File.OpenRead(m_rgstrFiles[m_nFileIdx]))
using (WAVReader wav = new WAVReader(fs))
{
m_nFileIdx++;
wav.ReadToEnd();
m_rgInfo = new Dictionary <string, float>();
m_rgInfo.Add("AveBytesPerSec", wav.Format.nAvgBytesPerSec);
m_rgInfo.Add("BlockAlign", wav.Format.nBlockAlign);
m_rgInfo.Add("Channels", wav.Format.nChannels);
m_rgInfo.Add("SamplesPerSec", wav.Format.nSamplesPerSec);
m_rgInfo.Add("BitsPerSample", wav.Format.wBitsPerSample);
m_rgInfo.Add("FormatTag", wav.Format.wFormatTag);
return(wav.Samples);
}
}
