/// <summary>
/// Calculate the target cost.
/// </summary>
/// <param name="featureId">Feature id.</param>
/// <param name="src">Source.</param>
/// <param name="target">Target.</param>
/// <returns>Cost.</returns>
private float CalcTargetCost(TtsFeature featureId, int src, int target)
{
float cost = 0;
if (_targetCosts.ContainsKey(featureId))
{
cost = _targetCosts[featureId][src][target];
}
return cost;
}
/// <summary>
/// Get target cost table.
/// </summary>
/// <param name="featureId">Feature id.</param>
/// <returns>Target cost table.</returns>
private float[][] GetTargetCost(TtsFeature featureId)
{
float[][] costTable = null;
if (_targetCosts.ContainsKey(featureId))
{
costTable = _targetCosts[featureId];
}
return costTable;
}
/// <summary>
/// Set target cost table.
/// </summary>
/// <param name="featureId">Feature id.</param>
/// <param name="costTable">Target cost table.</param>
private void SetTargetCost(TtsFeature featureId, float[][] costTable)
{
if (costTable == null)
{
throw new ArgumentNullException("costTable");
}
if (_targetCosts.ContainsKey(featureId))
{
_targetCosts[featureId] = costTable;
}
else
{
_targetCosts.Add(featureId, costTable);
}
}
/// <summary>
/// Filter the Ids question file into a feature-specified question file.
/// </summary>
/// <param name="sourceFile">Source file.</param>
/// <param name="targetFile">Target file after filtered.</param>
/// <param name="feature">Feature used to filter.</param>
public static void FilterQuestion(string sourceFile,
string targetFile, TtsFeature feature)
{
Helper.EnsureFolderExistForFile(targetFile);
using (StreamWriter sw = new StreamWriter(targetFile))
using (StreamReader sr = new StreamReader(sourceFile))
{
string line = null;
while ((line = sr.ReadLine()) != null)
{
if (string.IsNullOrEmpty(line))
{
continue;
}
string[] items = line.Split(new char[] { ' ' },
StringSplitOptions.RemoveEmptyEntries);
TtsFeature currentFeature =
(TtsFeature)int.Parse(items[1], CultureInfo.InvariantCulture);
if (currentFeature == feature)
{
sw.WriteLine(line);
}
}
}
}
