c#读取MP3、wmv等格式歌曲信息

时间：2014-08-27 12:53:17 阅读：412 评论：0 收藏：0 [点我收藏+]

这几天闲着无聊，想做个简单的KTV管理系统！查阅资料才知道歌曲本身自带歌曲的详细信息。于是查阅了相关资料并且不断摸索，对网上的两种方法做了简单的验证。结果如下：

代码1：

1 ShellClass sh = new ShellClass();
2             Folder dir = sh.NameSpace(Path.GetDirectoryName(file));
3             FolderItem item = dir.ParseName(Path.GetFileName(file));
4             string str = dir.GetDetailsOf(item, 27) ; // 获取歌曲时长。
5             MessageBox.Show(str);
6  
7 // 如果执行过程中，出现是错误提示，通过Shell32 的 Embed Interop Types 属性设置为 False 即可；

这这种方法得到了验证，是可行的！主要是利用windows自带的com组件调用！

对于shell。dll库具体说明如下：

首先引用COM组件
Microsoft Shell Controls And Automation
这里需要注意
DLL的属性Embed Interop Type 设为False
否则会引起互操作类型异常
 
代码如下
ShellClass sh = new ShellClass();
Folder dir = sh.NameSpace(Path.GetDirectoryName(sFile));
FolderItem item = dir.ParseName(Path.GetFileName(sFile));
string det = dir.GetDetailsOf(item, iCol);
 
iCol 对应文件详细属性汇总
ID  => DETAIL-NAME
0   => Name
1   => Size     // MP3 文件大小
2   => Type
3   => Date modified
4   => Date created
5   => Date accessed
6   => Attributes
7   => Offline status
8   => Offline availability
9   => Perceived type
10  => Owner
11  => Kinds
12  => Date taken
13  => Artists   // MP3 歌手
14  => Album     // MP3 专辑
15  => Year
16  => Genre
17  => Conductors
18  => Tags
19  => Rating
20  => Authors
21  => Title     // MP3 歌曲名
22  => Subject
23  => Categories
24  => Comments
25  => Copyright
26  => #
27  => Length    // MP3 时长
28  => Bit rate
29  => Protected
30  => Camera model
31  => Dimensions
32  => Camera maker
33  => Company
34  => File description
35  => Program name
36  => Duration
37  => Is online
38  => Is recurring
39  => Location
40  => Optional attendee addresses
41  => Optional attendees
42  => Organizer address
43  => Organizer name
44  => Reminder time
45  => Required attendee addresses
46  => Required attendees
47  => Resources
48  => Free/busy status
49  => Total size
50  => Account name
51  => Computer
52  => Anniversary
53  => Assistant‘s name
54  => Assistant‘s phone
55  => Birthday
56  => Business address
57  => Business city
58  => Business country/region
59  => Business P.O. box
60  => Business postal code
61  => Business state or province
62  => Business street
63  => Business fax
64  => Business home page
65  => Business phone
66  => Callback number
67  => Car phone
68  => Children
69  => Company main phone
70  => Department
71  => E-mail Address
72  => E-mail2
73  => E-mail3
74  => E-mail list
75  => E-mail display name
76  => File as
77  => First name
78  => Full name
79  => Gender
80  => Given name
81  => Hobbies
82  => Home address
83  => Home city
84  => Home country/region
85  => Home P.O. box
86  => Home postal code

第二种方法是利用自己编写的函数！总所周知，歌曲信息往往存在二进制文件最后的128个字节中，我们可以通过字节操作来获取对应的信息。代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace GetVideoInfor
{
    class Class1
    {
          public struct Mp3Info
  
          {
  
             public string identify;//TAG，三个字节
  
              public string Title;//歌曲名,30个字节
  
              public string Artist;//歌手名,30个字节
 
             public string Album;//所属唱片,30个字节
 
             public string Year;//年,4个字符
 
             public string Comment;//注释,28个字节
 
 
            public char reserved1;//保留位，一个字节
 
             public char reserved2;//保留位，一个字节
 
             public char reserved3;//保留位，一个字节
 
         }
 
 
         /// <summary>
 
         /// 获取MP3文件最后128个字节
 
         /// </summary>
 
         /// <param name="FileName">文件名</param>

        /// <returns>返回字节数组</returns>
 
         public byte[] getLast128(string FileName)
 
         {

             FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
             Stream stream = fs;
             stream.Seek(-128, SeekOrigin.End);
             const int seekPos = 128;
             int rl = 0;
             byte[] Info = new byte[seekPos];
             rl = stream.Read(Info, 0, seekPos);
             fs.Close();
             stream.Close();
             return Info;
 
         }

         public string ReadAuthor(Stream binary_file) 
         {
             System.Text.Encoding encoding = System.Text.Encoding.UTF8;
             // Read string from binary file with UTF8 encoding
             byte[] buffer = new byte[30];
             binary_file.Read(buffer, 0, 30);
             return encoding.GetString(buffer);
         }
 
         /// <summary>
 
         /// 获取MP3歌曲的相关信息
 
         /// </summary>
 
         /// <param name = "Info">从MP3文件中截取的二进制信息</param>
 
         /// <returns>返回一个Mp3Info结构</returns>

         public Mp3Info getMp3Info(byte[] Info)
 
         {
             Mp3Info mp3Info = new Mp3Info();
             string str = null;
             int i;
             int position = 0;//循环的起始值   
             int currentIndex = 0;//Info的当前索引值  
             //获取TAG标识  
             for (i = currentIndex; i < currentIndex + 3; i++)
             {
                 str = str + (char)Info[i];
                 position++;
             }
             currentIndex = position;
             mp3Info.identify = str;

             //获取歌名   
             str = null;
             byte[] bytTitle = new byte[30];//将歌名部分读到一个单独的数组中   
             int j = 0;
             for (i = currentIndex; i < currentIndex + 30; i++)
             {
                 bytTitle[j] = Info[i];
                 position++;
                 j++;
             }
             currentIndex = position;
             mp3Info.Title = this.byteToString(bytTitle);

             //获取歌手名  
             str = null;
             j = 0;
             byte[] bytArtist = new byte[30];//将歌手名部分读到一个单独的数组中  
             for (i = currentIndex; i < currentIndex + 30; i++)
             {
                 bytArtist[j] = Info[i];
                 position++;
                 j++;
             }
             currentIndex = position;
             mp3Info.Artist = this.byteToString(bytArtist);

             //获取唱片名   
             str = null;
             j = 0;
             byte[] bytAlbum = new byte[30];//将唱片名部分读到一个单独的数组中  
             for (i = currentIndex; i < currentIndex + 30; i++)
             {
                 bytAlbum[j] = Info[i];
                 position++;
                 j++;
             }
             currentIndex = position;
             mp3Info.Album = this.byteToString(bytAlbum);

             //获取年   
             str = null;
             j = 0;
             byte[] bytYear = new byte[4];//将年部分读到一个单独的数组中  
             for (i = currentIndex; i < currentIndex + 4; i++)
             {
                 bytYear[j] = Info[i];
                 position++;
                 j++;
             }
             currentIndex = position;
             mp3Info.Year = this.byteToString(bytYear);
             //获取注释  
             str = null;
             j = 0;
             byte[] bytComment = new byte[28];//将注释部分读到一个单独的数组中  
             for (i = currentIndex; i < currentIndex + 25; i++)
             {
                 bytComment[j] = Info[i];
                 position++;
                 j++;
             }
             currentIndex = position;
             mp3Info.Comment =this.byteToString(bytComment);

             //以下获取保留位   
             mp3Info.reserved1 = (char)Info[++position];
             mp3Info.reserved2 = (char)Info[++position];
             mp3Info.reserved3 = (char)Info[++position];
             return mp3Info;  
        }

       /// <summary>
        /// 将字节数组转换成字符串

        /// </summary>

       /// <param name = "b">字节数组</param>

       /// <returns>返回转换后的字符串</returns>

         private string byteToString(byte[] b)

       {
           Encoding enc = Encoding.GetEncoding("GB2312");
           string str = enc.GetString(b);
           str = str.Substring(0, str.IndexOf("#CONTENT#") >= 0 ? str.IndexOf("#CONTENT#") : str.Length);//去掉无用字符               
           return str; 
          // byte[] bs = { 97, 98, 99, 100, 101, 102 }; 
          // string str = System.Text.Encoding.ASCII.GetString(b);

           // return str;
        }

         /// <summary> 
         /// 更改文件名 
         /// </summary> 
         /// <param name="filePath">文件名</param> 
         /// <returns></returns> 
         private bool ReName(string filePath)
         {
             if (File.Exists(filePath))
             {
                 Mp3Info mp3Info = new Mp3Info();
                 mp3Info = this.getMp3Info(this.getLast128(filePath));//读出文件信息 

                 mp3Info.Artist = this.DeleteNotvalue(mp3Info.Artist);

                 mp3Info.Title = this.DeleteNotvalue(mp3Info.Title);

                 if (mp3Info.Artist.Trim().Length == 0)
                 {

                     mp3Info.Artist = "未命名";

                 }

                 if (mp3Info.Title.Trim().Length == 0)
                 {

                     mp3Info.Title = "未知名歌曲";

                 }
                 try
                 {
                     //更名 

                     File.Move(filePath, filePath.Substring(0, filePath.ToLower().LastIndexOf("\\")).Trim() + "\\" + "(" + mp3Info.Artist.Trim() + ")" + mp3Info.Title.Trim() + ".mp3");

                     return true;

                 }
                 catch (Exception)
                 {
                     return false;
                 }
             }
             else
             {
                 return false;
             }

         }

         private string DeleteNotvalue(string p)
         {
             throw new NotImplementedException();
         }

值得说明的是这种方法我没有成功，不知道是不是因为转换的原因还是其他什么，倒腾了很久都没有结果！

c#读取MP3、wmv等格式歌曲信息

标签：des style blog color os io for 文件 ar

原文地址：http://www.cnblogs.com/huanziaixiaojiang/p/3939009.html

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