asp编程实例:用ASP实现对MP3曲目信息的操作

it2022-05-09  35

  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  上海诚凯男子医院程序: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

转载于:https://www.cnblogs.com/chaorenman/p/4113075.html

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