/// <summary>
/// Comparing
/// </summary>
async Task<Congruence[]> CompareParallel(Signature mainSign, Signature[] signs)
{
if (mainSigns == null || signs == null || signs.Length == 0) return null;
IEnumerable<Congruence> ret = null;
object retLock = new object();
Log(String.Format("Parallel compare. Delta is Sigma * {0:0.00}", NSigm));
Recognition.Initialize();
Stopwatch sw = new Stopwatch();
sw.Start();
int k = 1, n = signs.Length;
await Task.Factory.StartNew(() =>
{
Parallel.For(0, signs.Length, delegate(int i)
{
if(signs[i].FreqRate != mainSign.FreqRate)
{
Log(String.Format("Error: \"{0}\" is uncomparable with \"{1}\"",
signs[i].ToString(), mainSign.ToString()));
return;
}
else if (signs[i].BaseFileInfo.SampleRate != mainSign.BaseFileInfo.SampleRate)
{
Log("Warning: basic rates is not equal:");
Log(String.Format("{0} [{1} Hz] : {2} [{3} Hz]",
mainSign.ToString(), mainSign.BaseFileInfo.SampleRate,
signs[i].ToString(), signs[i].BaseFileInfo.SampleRate));
}
// Сравнение
Congruence[] cong = mainSign.CompareTo(signs[i], NSigm);
#region Вывод
StringBuilder sb = new StringBuilder();
sb.AppendFormat("[{0}/{1}]:\t{2} {3}", k++, n, signs[i].ToString(), Environment.NewLine);
if (cong == null)
{
sb.Append("\t\t[NULL]");
lock (logLock) Log(sb.ToString());
return;
}
for (int j = 0; j < cong.Length - 1; j++)
{
sb.AppendFormat("\t\t{0:T}; sigms: {1:0.00} {2}",
mainSign.ToTimeSpan(cong[j].Coord), cong[j].SignSigma, Environment.NewLine);
}
sb.AppendFormat("\t\t{0:T}; sigms: {1:0.00}",
mainSign.ToTimeSpan(cong[cong.Length - 1].Coord), cong[cong.Length - 1].SignSigma);
lock (logLock) Log(sb.ToString());
#endregion
lock (retLock)
{
if (ret == null) ret = cong.AsEnumerable();
else ret = ret.Concat(cong);
}
});
});
sw.Stop();
Log("Elapsed: " + sw.Elapsed + Environment.NewLine + "Compare complete.");
return ret == null ? null : ret.ToArray();
}
