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用ASP实现对MP3曲目信息的操作

更新时间:2014-06-02 10:41:38  来源:不详  浏览:1171

  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


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