public static string GetTrackLength(CueSheetTrack currentTrack, CueSheetTrack nextTrack)
{
var currentTrackPosition = CueSheetIndex.ToTimeSpan(currentTrack.Index.Time);
var nextTrackPosition = CueSheetIndex.ToTimeSpan(nextTrack.Index.Time);
var trackLength = nextTrackPosition - currentTrackPosition;
return(CueSheetIndex.FromTimeSpan(trackLength));
}
protected virtual MetaDataItem[] GetMetaData(CueSheet cueSheet, CueSheetTrack cueSheetTrack, IEnumerable <MetaDataItem> fileMetaData)
{
var metaDataItems = new Dictionary <string, MetaDataItem>(StringComparer.OrdinalIgnoreCase);
if (fileMetaData != null)
{
foreach (var metaDataItem in fileMetaData)
{
metaDataItems[metaDataItem.Name] = metaDataItem;
}
}
foreach (var tag in cueSheet.Tags)
{
var name = default(string);
if (!FILE_NAMES.TryGetValue(tag.Name, out name))
{
if (!CommonMetaData.Lookup.TryGetValue(tag.Name, out name))
{
name = tag.Name;
}
}
metaDataItems[name] = new MetaDataItem(name, MetaDataItemType.Tag)
{
Value = tag.Value
};
}
foreach (var tag in cueSheetTrack.Tags)
{
var name = default(string);
if (!TRACK_NAMES.TryGetValue(tag.Name, out name))
{
if (!CommonMetaData.Lookup.TryGetValue(tag.Name, out name))
{
name = tag.Name;
}
}
metaDataItems[name] = new MetaDataItem(name, MetaDataItemType.Tag)
{
Value = tag.Value
};
}
metaDataItems[CommonMetaData.Track] = new MetaDataItem(CommonMetaData.Track, MetaDataItemType.Tag)
{
Value = cueSheetTrack.Number
};
//TODO: We could create the CommonProperties.Duration for all but the last track in each file.
//TODO: Without understanding the file format we can't determine the length of the last track.
//TODO: Just don't provide any duration for now.
metaDataItems.Remove(CommonProperties.Duration);
return(metaDataItems.Values.ToArray());
}
private void OnParseFile(string[] lines, ref int position, IList <CueSheetFile> files, IList <CueSheetTag> tags)
{
var line = lines[position].Trim();
var path = line.Substring(
line.IndexOf(' '),
line.LastIndexOf(' ') - line.IndexOf(' ')
).Trim(new[] { '"', ' ' });
var format = line.Substring(
line.LastIndexOf(' ')
).Trim();
var tracks = new List <CueSheetTrack>();
var trackNumber = default(string);
var trackType = default(string);
var trackIndexes = new List <CueSheetIndex>();
var trackTags = new List <CueSheetTag>();
for (position = position + 1; position < lines.Length; position++)
{
line = lines[position].Trim();
var parts = line.Split(new[] { ' ' }, 3);
if (parts.Length < 2)
{
continue;
}
switch (parts[0].ToUpper())
{
case REM:
this.OnParseTag(lines, ref position, files, trackTags);
break;
case TITLE:
case PERFORMER:
case SONGWRITER:
this.OnParseTag(lines, ref position, files, trackTags);
break;
case ISRC:
//TODO: Should we do something with this? International Standard Recording Code.
break;
case FLAGS:
//TODO: Should we do something with this? Copy protection, multi channel...
break;
case TRACK:
if (!string.IsNullOrEmpty(trackNumber) && !string.IsNullOrEmpty(trackType) && trackIndexes.Count > 0)
{
var track = new CueSheetTrack(
trackNumber,
trackType,
trackIndexes,
trackTags
);
tracks.Add(track);
}
trackNumber = default(string);
trackType = default(string);
trackIndexes = new List <CueSheetIndex>();
trackTags = new List <CueSheetTag>();
if (parts.Length == 3)
{
trackNumber = parts[1];
trackType = parts[2];
}
break;
case INDEX:
if (parts.Length == 3)
{
var indexPosition = parts[1];
var indexTime = parts[2];
var index = new CueSheetIndex(
indexPosition,
indexTime
);
trackIndexes.Add(index);
}
break;
default:
position--;
goto done;
}
}
done:
if (!string.IsNullOrEmpty(trackNumber) && !string.IsNullOrEmpty(trackType) && trackIndexes.Count > 0)
{
var track = new CueSheetTrack(
trackNumber,
trackType,
trackIndexes,
trackTags
);
tracks.Add(track);
}
var file = new CueSheetFile(path, format, tracks);
files.Add(file);
}
