/// <summary>
/// 利用Bass库根据传入的音乐句柄返回该音乐信息
/// </summary>
/// <param name="handle"></param>
/// <returns></returns>
private static MusicID3 GetMusicInfoByBass(int handle)
{
MusicID3 musicInfo = new MusicID3();
if (handle != 0)
{
string[] info = Bass.BASS_ChannelGetTagsID3V2(handle);
if (info != null)
{
foreach (string s in info)
{
if (s.StartsWith("TIT2", true, null))
{
musicInfo.Title = s.Remove(0, 5);
}
else if (s.StartsWith("TPE1", true, null))
{
musicInfo.Artist = s.Remove(0, 5);
}
else if (s.StartsWith("TALB", true, null))
{
musicInfo.Album = s.Remove(0, 5);
}
}
}
info = Bass.BASS_ChannelGetTagsID3V1(handle);
if (info != null)
{
musicInfo.Title = info[0] != "" ? info[0] : musicInfo.Title;
musicInfo.Artist = info[1] != "" ? info[1] : musicInfo.Artist;
musicInfo.Album = info[2] != "" ? info[2] : musicInfo.Album;
musicInfo.Year = info[3];
musicInfo.Comment = info[4];
musicInfo.Genre_id = info[5];
musicInfo.Track = info[6];
}
}
return(musicInfo);
}
/// <summary>
/// 获取指定音乐文件的ID3信息
/// </summary>
/// <param name="filePath">文件路径</param>
/// <returns>音乐ID3信息</returns>
public static MusicID3 GetInformation(string filePath)
{
try
{
//打开文件
int s = Bass.BASS_StreamCreateFile(filePath, 0L, 0L, BASSFlag.BASS_SAMPLE_FLOAT);
if (s == 0)
{
return(null);
}
MusicID3 musicInfo = GetMusicInfoByBass(s);
double seconds = Bass.BASS_ChannelBytes2Seconds(s, Bass.BASS_ChannelGetLength(s));
musicInfo.Duration = Helper.Seconds2Time(seconds);
musicInfo.Path = filePath;
Bass.BASS_StreamFree(s); //释放文件
return(musicInfo);
}
catch (Exception ex)
{
Logger.Instance.Exception(ex);
return(null);
}
}
