用ASP实现对MP3曲目信息的操作

先简单说一下MP3的ID3 标记，因为主要是操作这个玩意

MP3最开始的时候没有我们今天看到的那样，有歌手、年代，专集等等信息
只有一些简单的参数如yes/no来表示是不是privated或者copyrighted等信息，这样对MP3的相关工作带来了很多不便，1996年的时候有个老外提出来在每个MP3后面追加一段数据，用以存放上述的那些信息，后来就发展成为id3 v1 据我所知的现在已经到1.1了，具体的还是自己去查一下吧

还是老习惯，用metadata来引入DLL，我以前有文章贴过的，不知道的请自己去查

看代码

 1   
 2Function ConvertBin(Binary)   
 3'This function converts a binary byte into an ASCII byte.   
 4for i = 1 to LenB(Binary)   
 5strChar = chr(AscB(MidB(Binary,i,1)))   
 6ConvertBin = ConvertBin & strChar   
 7Next   
 8End Function   
 9  
10dim objStream   
11dim strTag, strSongName, strArtist, strAlbum, strYear, _   
12strComment, strGenre, strFile   
13  
14'Specify the folder to iterate through, displaying all the MP3s   
15Const folder = "C:\mp3s\"   
16  
17'Grab the folder information   
18  
19Dim objFSO, objFolder, objFile   
20Set objFSO = Server.CreateObject("Scripting.FileSYstemObject")   
21Set objFolder = objFSO.GetFolder(folder)   
22  
23'Create the Stream object   
24set objStream = Server.CreateObject("ADODB.Stream")   
25objStream.Type = adTypeBinary   
26  
27'Loop through the files in the folder   
28For Each objFile in objFolder.Files   
29'Open the stream   
30objStream.Open   
31objStream.LoadFromFile objFile.Path   
32  
33'Read the last 128 bytes   
34objStream.Position = objStream.size - 128   
35  
36'Read the ID3 v1 tag info   
37strTag = ConvertBin(objStream.Read(3))   
38if ucase(strTag) = "TAG" then   
39strSongName = ConvertBin(objStream.Read(30))   
40strArtist = ConvertBin(objStream.Read(30))   
41strAlbum = ConvertBin(objStream.Read(30))   
42strYear = ConvertBin(objStream.Read(4))   
43strComment = ConvertBin(objStream.Read(30))   
44end if   
45  
46'Display the results   
47response.write "

<table><tr><td colspan="2"><h3>" & _
"ID3 Tag info for:</h3></td></tr><tr>" & _
"<td colspan="2">" & objFile.Name & "</td></tr>"
response.write "<tr><td><b>Artist: </b></td>" & _
"<td>" & strArtist & "</td></tr>"
response.write "<tr><td><b>Track: </b></td>" & _
"<td>" & strSongName & "</td></tr>"
response.write "<tr><td><b>Album: </b></td>" & _
<td>" & strAlbum & "</td></tr>"
response.write "<tr><td><b>Year: </b></td>" & _
"<td>" & strYear & "</td></tr>"
response.write "<tr><td><b>Comment: </b>" & _
"</td><td>" & strComment & "</td></tr>"
response.write "</table>

1"   
2  
3objStream.Close   
4  
5Response.Write "

<p><hr/><p>"
Next

Set objStream = Nothing 'Clean up...

1  
2自己试试吧   
3  
4希望能对你有所帮助</p></p>