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用ASP实现对MP3曲目信息的操作

作者: 来源:不详 添加时间:2006-5-25 19:04:46
  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

<!--METADATA TYPE="typelib"
UUID="00000205-0000-0010-8000-00AA006D2EA4"
  NAME="ADODB Type Library"
-->

<%
  Function ConvertBin(Binary)
  'This function converts a binary byte into an ASCII byte.
 for i = 1 to LenB(Binary)
strChar = chr(AscB(MidB(Binary,i,1)))
ConvertBin = ConvertBin & strChar
 Next
  End Function

  dim objStream
  dim strTag, strSongName, strArtist, strAlbum, strYear, _
strComment, strGenre, strFile

  'Specify the folder to iterate through, displaying all the MP3s
  Const folder = "C:\mp3s\"

  'Grab the folder information

  Dim objFSO, objFolder, objFile
  Set objFSO = Server.CreateObject("Scripting.FileSYstemObject")
  Set objFolder = objFSO.GetFolder(folder)

  'Create the Stream object
  set objStream = Server.CreateObject("ADODB.Stream")
  objStream.Type = adTypeBinary

  'Loop through the files in the folder
  For Each objFile in objFolder.Files
 'Open the stream
 objStream.Open
 objStream.LoadFromFile objFile.Path

 'Read the last 128 bytes
 objStream.Position =  objStream.size - 128

 'Read the ID3 v1 tag info
 strTag = ConvertBin(objStream.Read(3))
 if ucase(strTag) = "TAG" then
strSongName = ConvertBin(objStream.Read(30))
strArtist = ConvertBin(objStream.Read(30))
strAlbum = ConvertBin(objStream.Read(30))
strYear = ConvertBin(objStream.Read(4))
strComment = ConvertBin(objStream.Read(30))
 end if

 'Display the results
 response.write "<table><tr><td colspan=2><h3>" & _
 "ID3 Tag info for:</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>"

 objStream.Close

 Response.Write "<p><hr><p>"
  Next

  Set objStream = Nothing 'Clean up...
%>

自己试试吧

希望能对你有所帮助
 
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