JS解析MP3获取歌曲信息--ID3 Reader-优快云博客

ID3Reader是一款用于解析MP3文件中ID3标签信息的工具，支持前台及Node.js环境使用。通过简单的API调用即可获取音乐标题、艺术家、专辑等详细信息。

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ID3 Reader 是一款可以在前台或者后台（nodejs）解析MP3曲目信息（前提是含有这些信息）的工具

用法示例

1，基本用法

//In its simplest form:
ID3.loadTags("filename.mp3", function() {
    var tags = ID3.getAllTags(filename);
    alert(tags.artist + " - " + tags.title + ", " + tags.album);
});

2，特殊用法

//by specifying specific tags:
ID3.loadTags("filename.mp3", function() {
    var tags = ID3.getAllTags(filename);
    alert(tags.COMM.data + " - " + tags.TCON.data + ", " + tags.WXXX.data);
},
{tags: ["COMM", "TCON", "WXXX"]});
//or even by specifying shortcuts instead of cryptic tags:
ID3.loadTags("filename.mp3", function() {
    var tags = ID3.getAllTags(filename);
    alert(tags.comment + " - " + tags.track + ", " + tags.lyrics);
},
{tags: ["comment", "track", "lyrics"]});

3，文档及API

ID3.loadTags(url, cb, [options])//文件路径，回调函数，参数数组

url - The URL of the mp3 file to read, this must reside on the same domain (document.domain).
//文件必须在同域名下

cb - The callback function to invoke when the tags are loaded.
//文件加载完毕后执行

options - Optional parameters.
//参数数组

options.tags - The array of tags and/or shortcuts to read from the ID3 block. Default value is: ["title", "artist", "album", "track"]

options.dataReader - The function used to create the data reader out of a url. It receives (url, success: callback function that returns the data reader, fail: callback function to inform an error setting up the reader). By default it will be BufferedBinaryAjax.

ID3.getAllTags(url)

url - The URL of the mp3 file to read, this must be the same value given to ID3.loadTags().

return value - This function will return the following object structure, for IDv1:
{
    version: "1.1",
    title: string,
    artist: string,
    album: string,
    year: string,
    comment: string,
    track: string,
    genre: string
}

and for ID3v2:

{
    version: "2.<major>.<revision>",
    major: integer,
    revision: integer,
    flags: {
        unsynchronisation: boolean,
        extended_header: boolean,
        experimental_indicator: boolean
    },
    size: integer,
    <frame id>*: {
        id: integer,
        size: integer,
        description: string,
        data: <frame structure>
    },
    <shortcut>*: pointer to <frame id>.data
}

Currently supported frames:

APIC/PIC: Attached picture

COMM/COM: Comments

PCNT/CNT: Play counter

T*: Text frames

USLT/ULT: Unsychronized lyric/text transcription

Shortcuts:

title: TIT2/TT2

artist: TPE1/TP1

album: TALB/TAL

year: TYER/TYE

comment: COMM/COM

track: TRCK/TRK

genre: TCON/TCO

picture: APIC/PIC
lyrics: USLT/ULT