public void Convert()
{
_songFile = new SongFile();
// Read file
try
{
using (StreamReader rdr = new StreamReader(_fileName, Encoding))
{
while (!rdr.EndOfStream)
{
var line = rdr.ReadLine();
if (String.IsNullOrEmpty(line))
{
continue;
}
if (TagsMatch(line, ref _songFile))
{
continue;
}
else
{
var errors = _songFile.IsValid().ToArray();
if (errors.Any())
{
foreach (var error in errors)
{
Console.WriteLine("\t" + error);
}
break;
}
else
{
_lines = WriteNotes(line, rdr, _songFile).ToArray();
break;
}
}
}
}
}
catch (NoteException)
{
throw;
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
private void WriteFile(string outFile, SongFile songFile, IEnumerable<String> lines)
{
using (Stream stream = File.OpenWrite(outFile))
{
using (var writer = new StreamWriter(stream, Encoding))
{
writer.WriteLine(string.Format("[ar:{0}]", songFile.artist));
writer.WriteLine(string.Format("[ti:{0}]", songFile.title));
writer.WriteLine(string.Format("[by:{0}]", byField));
writer.WriteLine(string.Format("[re:{0}]", converterField));
foreach (var line in lines)
{
writer.WriteLine(line);
}
}
}
}
//Enhanced LRC format
private IEnumerable<string> WriteNotes(string firstLine, StreamReader rdr, SongFile songFile)
{
HashSet<string> notes = new HashSet<string>(new []{":", "*", "F"});
HashSet<string> endNote = new HashSet<string>(new[] { "-"});
string line = firstLine;
TimeSpan lastTime = TimeSpan.Zero;
StringBuilder sb = new StringBuilder();
do
{
if (string.IsNullOrEmpty(line))
{
continue;
}
if (line.Equals("P1", StringComparison.InvariantCultureIgnoreCase))
{
Console.WriteLine("Can't parse multiline, only parsing p1");
}
else if (line.Equals("P2", StringComparison.InvariantCultureIgnoreCase))
{
yield break;
}
string[] columns = line.Split(new[] {' '}, 5);
if (columns.Length > 1)
{
var columnType = columns[0];
// number of beats into the song at which point this syllable appears.
var beatsColumn = columns[1];
double beats;
if (!double.TryParse(beatsColumn, out beats))
{
throw new NoteException(String.Format("Line '{0}' couldn't parse the beat start.", line));
}
TimeSpan startTime = TimeSpan.FromMinutes(beats / songFile.bpm) + TimeSpan.FromMilliseconds(songFile.gap);
if (notes.Contains(columnType, StringComparer.InvariantCultureIgnoreCase))
{
// : - Regular note
// * - Golden note
// F - Freestyle note
// LRC has no support to distinguish these
if (columns.Length == 5)
{
var syllable = columns[4];
if (!String.IsNullOrEmpty(RemoveCharacters))
{
syllable = RemoveCharacters.Aggregate(syllable, (current, character) => current.Replace(character, ' '));
}
if (String.IsNullOrEmpty(syllable.Trim()))
{
Console.WriteLine("Skipping empty line.");
}
sb.Append(startTime.ToLyricTiming(sb.Length == 0));
// Add syllable
sb.Append(syllable);
}
else
{
Console.WriteLine("Weird song column found: '{0}'", line);
}
var durationColumn = columns[2];
double duration;
if (!double.TryParse(durationColumn, out duration))
{
throw new NoteException(String.Format("Line '{0}' couldn't duration of the beat.", line));
}
lastTime = startTime + TimeSpan.FromMinutes(duration /songFile.bpm);
}
else if (endNote.Contains(columnType, StringComparer.InvariantCultureIgnoreCase))
{
// Close current line
sb.Append(lastTime.ToLyricTiming(false));
yield return sb.ToString();
sb.Length = 0;
sb.Capacity = 16;
}
}
line = rdr.ReadLine();
} while (!rdr.EndOfStream);
if (line != null && line.Equals("E", StringComparison.CurrentCultureIgnoreCase) && sb.Length > 0)
{
sb.Append(lastTime.ToLyricTiming(false));
yield return sb.ToString();
}
}
private bool TagsMatch(string line, ref SongFile songFile)
{
var match = Regex.Match(line, "^#(?<TAG>.*):(?<VALUE>.*)");
if (match.Success)
{
string tag = match.Groups["TAG"].Value;
string val = match.Groups["VALUE"].Value;
if (tag == "TITLE")
{
songFile.title = val;
return true;
}
else if (tag == "ARTIST")
{
songFile.artist = val;
return true;
}
else if (tag == "GAP")
{
double gap;
val = val.Replace(",", CultureInfo.InvariantCulture.NumberFormat.NumberDecimalSeparator);
double.TryParse(val, NumberStyles.Any, CultureInfo.InvariantCulture, out gap);
songFile.gap = gap;
return true;
}
else if (tag == "BPM")
{
double bpm;
val = val.Replace(",", CultureInfo.InvariantCulture.NumberFormat.NumberDecimalSeparator);
double.TryParse(val, NumberStyles.Any, CultureInfo.InvariantCulture, out bpm);
songFile.bpm = bpm * 4.0;
return true;
}
else if (tag == "RELATIVE")
{
if (val.Equals("YES", StringComparison.InvariantCulture))
{
throw new NotSupportedException("#Relative tag is not supported");
}
return true;
}
else if (tag.Equals("VIDEO", StringComparison.InvariantCultureIgnoreCase))
{
songFile.video = val;
return true;
}
else if (tag.Equals("YEAR", StringComparison.InvariantCultureIgnoreCase))
{
songFile.year = val;
return true;
}
else if (tag.Equals("LANGUAGE", StringComparison.InvariantCultureIgnoreCase))
{
songFile.language = val;
return true;
}
else if (tag.Equals("GENRE", StringComparison.InvariantCultureIgnoreCase))
{
songFile.genre = val;
return true;
}
else if (tag.Equals("MP3", StringComparison.InvariantCultureIgnoreCase))
{
songFile.mp3 = val;
return true;
}
else
{
Console.WriteLine("\tUnknown tag '{0}' with value '{1}', ignoring.", tag, val);
return true;
}
}
return false;
}