/// <summary>
/// CUEからCDオブジェクトを生成
/// </summary>
/// <param name="cue">CUEシート</param>
/// <param name="cueFilename">CUEシートのファイル名。埋め込みの場合は音源ファイル名。</param>
/// <param name="alternativeFilename">FILE命令の代替とする音源のファイル名。</param>
/// <param name="readStream">音源のファイルまで読んで解析するかどうか。trueでないとビットレートや最終トラックの長さが取得できない</param>
/// <returns>CDオブジェクト</returns>
private static CD ConvertCue2CD(CUESheet cue, string cueFilename, string alternativeFilename = null, bool readStream = true)
{
var cd = new CD();
var info = new StreamInfo();
string lastFilename = null;
CD.Track prevTrack = null, currentTrack = null;
for (int i = 0; i < cue.Tracks.Count; i++)
{
var cueTr = cue.Tracks[i];
if (cueTr.Type != Tags.CUESheet.TrackType.AUDIO)
{
continue;
}
currentTrack = new CD.Track();
var rootedFilename = (!Path.IsPathRooted(cueTr.Filename) ? Path.GetDirectoryName(cueFilename) + Path.DirectorySeparatorChar : "") + cueTr.Filename;
if (rootedFilename != lastFilename)
{
lastFilename = rootedFilename;
if (readStream)
{
info = GetStreamInfo(alternativeFilename ?? rootedFilename);
cd.length = cd.length.Add(info.Length);
}
}
else if (prevTrack != null)
{
prevTrack.End = cueTr.Index01.ToFrames;
}
/* Set Stream info */
currentTrack.bitrate = info.Bitrate;
currentTrack.channels = info.Channels;
currentTrack.freq = info.Freq;
currentTrack.Start = cueTr.Index01.ToFrames;
currentTrack.End = (int)(info.LengthInSec * 75);
currentTrack.file_name = cueFilename + new String(' ', (i + 1));
currentTrack.file_name_CUESheet = rootedFilename;
/* Set track info to Tag */
currentTrack.AddTag("TRACK", (i + 1).ToString());
currentTrack.AddTag("TITLE", cueTr.Title);
currentTrack.AddTag("ARTIST", cueTr.Performer);
currentTrack.AddTag("COMMENT", cueTr.Comment);
currentTrack.AddTag("ISRC", cueTr.Isrc);
currentTrack.AddTag("TRACK GAIN", cueTr.Gain);
currentTrack.AddTag("TRACK PEAK", cueTr.Peak);
/* Set album info to Tag */
currentTrack.AddTag("ALBUM", cue.Title);
currentTrack.AddTag("ARTIST", cue.Performer);
currentTrack.AddTag("ALBUM ARTIST", cue.Performer);
currentTrack.AddTag("GENRE", cue.Genre);
currentTrack.AddTag("DATE", cue.Date);
currentTrack.AddTag("COMMENT", cue.Comment);
currentTrack.AddTag("ALBUM GAIN", cue.Gain);
currentTrack.AddTag("ALBUM PEAK", cue.Peak);
cd.tracks.Add(currentTrack);
prevTrack = currentTrack;
}
return(cd);
}
public static CD Read(string filename, bool readStream)
{
var tag = MetaTag.readTagByFilename(filename, false);
CD cd = CUEReader.ReadFromString(tag.Find((e) => e.Key == "CUESHEET").Value.ToString(), filename, readStream);
if (cd == null)
{
return(null);
}
long bits = (new FileInfo(filename)).Length * 8;
int bitrate = 1410 * 1000;
try
{
using (var strm = new BASS.FileStream(filename, BASS.Stream.StreamFlag.BASS_STREAM_DECODE))
{
bitrate = (int)(bits / strm.length);
}
}
catch (Exception ex) {
Logger.Error("cannot open file (by BASS)" + filename);
Logger.Debug(ex);
}
foreach (var tr in cd.tracks)
{
// トラック番号取得
int trackindex = 0;
var trackIndex = tr.tag.Find((match) => match.Key == "TRACK" ? true : false);
trackindex = int.Parse(trackIndex.Value.ToString());
// その他、ディスク全体のタグ情報をまとめてぶっこむ
foreach (var disctag in tag)
{
tr.tag.RemoveAll(_ => _.Key == disctag.Key);
tr.tag.Add(disctag);
}
// InCUEの拡張タグ（？）をトラックのタグに付加
var customColumns = tag.FindAll((e) => e.Key.IndexOf(string.Format("CUE_TRACK{0:00}_", trackindex)) == 0);
foreach (var col in customColumns)
{
string key = new Regex(@"^CUE_TRACK\d\d_(?<1>.*)$").Match(col.Key).Groups[1].Value;
tr.tag.RemoveAll(_ => _.Key == key);
tr.tag.Insert(0, new KeyValuePair <string, object>(key, col.Value));
}
// PERFORMERがないとき、ARTISTをPERFORMERとして扱う
if (tr.tag.Find((e) => { return(e.Key == "PERFORMER"); }).Value == null)
{
var artist = tr.tag.Find((e) => { return(e.Key == "ARTIST"); });
if (artist.Value != null)
{
tr.tag.Add(new KeyValuePair <string, object>("PERFORMER", artist.Value));
}
}
// InCUE内のFILE名が実体と異なっている場合があるため、ビットレートを付加しなおす
tr.bitrate = bitrate;
}
return(cd);
}
