public void AddFilesToWrite(List<Song> filesToWrite)
{
_writeList.AddRange(filesToWrite);
if (_firstWrite)
{
_exampleSong = _writeList.First();
_exampleSegmentStat = _exampleSong.SegmentStats;
_exampleAggregate = _exampleSegmentStat.LoudnessMax;
}
}
private SongReader(string filename)
{
_f = new File(filename);
_builder = new SongBuilder();
ReadMetaData();
ReadAnalysisData();
SongInfo = _builder.Build();
_f.Dispose();
}
public static List<Song> FindKBestMatches(Song[] songs, List<int> dataSet, Song source, int k)
{
var pq = new SortedList<double, int>();
List<Song> returnList = new List<Song>();
foreach (var dataInt in dataSet)
{
double dist = EuclideanDistance.Distance(source, songs[dataInt]);
pq.Add(dist, dataInt);
}
foreach (var demInts in pq.Values.Take(k).ToList())
{
returnList.Add(songs[demInts]);
}
return returnList;
}
public static double Distance(Song x, Song y)
{
return Distance(x.DistanceArray(), y.DistanceArray());
}
private String GenerateRowLine(Song song)
{
StringBuilder row = new StringBuilder();
row.Append(_currentID++ + "" + TABCHAR);
// Write segmentstats
foreach (var aggregate in song.SegmentStats.AggregatesList)
{
AppendAggregateValues(row, aggregate);
}
// Write section stats
row.Append(song.SectionsStats.Count + "" + TABCHAR);
AppendAggregateValues(row, song.SectionsStats.Duration);
// Write lone attributes
var map = song.GetESOMAttributeMap();
foreach (var key in map.Keys)
{
string plusRow = "";
if (map[key] == null) plusRow += "NaN";
else plusRow += map[key].ToString();
row.Append(plusRow + TABCHAR);
}
//var map1 = song.GetIgnoredAttributeMap();
//foreach (var key in map1.Keys)
//{
// string plusRow = "";
// if (map1[key] == null) plusRow += "NaN";
// else plusRow += map1[key].ToString();
// row.Append(plusRow + TABCHAR);
//}
return row.ToString();
}
private String GenerateRowLine(Song song)
{
StringBuilder row = new StringBuilder();
row.Append(_currentID++ + "" + TABCHAR);
var dick = song.GetIgnoredAttributeMap();
row.Append("\"");
row.Append(dick["ArtistName"] + " , " + dick["TrackName"]);
row.Append("\"" + TABCHAR);
row.Append(dick["Genre"]);
row.Append("\"");
return row.ToString();
}