Cocoa 可可：如何获得音乐文件的光盘号码标签？

现在我可以从音频文件中获取这些标签：

#define kAFInfoDictionary_Artist                        "artist"
#define kAFInfoDictionary_Album                         "album"
#define kAFInfoDictionary_Tempo                         "tempo"
#define kAFInfoDictionary_KeySignature                  "key signature"
#define kAFInfoDictionary_TimeSignature                 "time signature"
#define kAFInfoDictionary_TrackNumber                   "track number"
#define kAFInfoDictionary_Year                          "year"
#define kAFInfoDictionary_Composer                      "composer"
#define kAFInfoDictionary_Lyricist                      "lyricist"
#define kAFInfoDictionary_Genre                         "genre"
#define kAFInfoDictionary_Title                         "title"
#define kAFInfoDictionary_RecordedDate                  "recorded date"
#define kAFInfoDictionary_Comments                      "comments"
#define kAFInfoDictionary_Copyright                     "copyright"
#define kAFInfoDictionary_SourceEncoder                 "source encoder"
#define kAFInfoDictionary_EncodingApplication           "encoding application"
#define kAFInfoDictionary_NominalBitRate                "nominal bit rate"
#define kAFInfoDictionary_ChannelLayout                 "channel layout"
#define kAFInfoDictionary_ApproximateDurationInSeconds  "approximate duration in seconds"
#define kAFInfoDictionary_SourceBitDepth                "source bit depth"
#define kAFInfoDictionary_ISRC                          "ISRC"                  // International Standard Recording Code
#define kAFInfoDictionary_SubTitle                      "subtitle"

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那么我怎样才能得到光盘号码标签呢？谢谢

您可以尝试使用TagLib：

它自由而强大