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Read ID3 tag from a MP3 file

Here's the code to read ID3 tage from a MP3 file

PHP Code:


		
			
<?php
 
 //Reads ID3v1 from a MP3 file and displays it
 
 
     $mp3 = "1.mp3"; //MP3 file to be read
 
                 //make a array of genres
     $genre_arr = array("Blues","Classic Rock","Country","Dance","Disco","Funk","Grunge",
 "Hip-Hop","Jazz","Metal","New Age","Oldies","Other","Pop","R&B",
 "Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska",
 "Death Metal","Pranks","Soundtrack","Euro-Techno","Ambient",
 "Trip-Hop","Vocal","Jazz+Funk","Fusion","Trance","Classical",
 "Instrumental","Acid","House","Game","Sound Clip","Gospel",
 "Noise","AlternRock","Bass","Soul","Punk","Space","Meditative",
 "Instrumental Pop","Instrumental Rock","Ethnic","Gothic",
 "Darkwave","Techno-Industrial","Electronic","Pop-Folk",
 "Eurodance","Dream","Southern Rock","Comedy","Cult","Gangsta",
 "Top 40","Christian Rap","Pop/Funk","Jungle","Native American",
 "Cabaret","New Wave","Psychadelic","Rave","Showtunes","Trailer",
 "Lo-Fi","Tribal","Acid Punk","Acid Jazz","Polka","Retro",
 "Musical","Rock & Roll","Hard Rock","Folk","Folk-Rock",
 "National Folk","Swing","Fast Fusion","Bebob","Latin","Revival",
 "Celtic","Bluegrass","Avantgarde","Gothic Rock","Progressive Rock",
 "Psychedelic Rock","Symphonic Rock","Slow Rock","Big Band",
 "Chorus","Easy Listening","Acoustic","Humour","Speech","Chanson",
 "Opera","Chamber Music","Sonata","Symphony","Booty Bass","Primus",
 "Porn Groove","Satire","Slow Jam","Club","Tango","Samba",
 "Folklore","Ballad","Power Ballad","Rhythmic Soul","Freestyle",
 "Duet","Punk Rock","Drum Solo","Acapella","Euro-House","Dance Hall");
     
     $filesize = filesize($mp3);
     $file = fopen("1.mp3", "r");
     fseek($file, -128, SEEK_END);
     
     $tag = fread($file, 3);
     
     
     if($tag == "TAG")
     {
         $data["song"] = trim(fread($file, 30));
         $data["artist"] = trim(fread($file, 30));
         $data["album"] = trim(fread($file, 30));
         $data["year"] = trim(fread($file, 4));
         $data["comment"] = trim(fread($file, 30));
         $data["genre"] = $genre_arr[ord(trim(fread($file, 1)))];
         
     }
     else
         die("MP3 file does not have any ID3 tag!");
     
     fclose($file);
     
     while(list($key, $value) = each($data))
     {
         print("$key: $value<br>\r\n");    
     }
     
     
 
 ?>

Re: Read ID3 tag from a MP3 file

I am not that expert in PHP but I think this is nice peace of code. but when I run the code with different mp3 files I get the message

MP3 file does not have any ID3 tag!

Can you tell me what the ID3 tag is all about and how I can have a file that have ID3 tag.

Thanks
Shabbir Bhimani

Re: Read ID3 tag from a MP3 file

After the birth of the MP3 file format, there remained a problem, which was inclusion of textual information i.e. some information about the audio file.At that time a person named Eric Kemp alias NamkraD suggested a fixed-size 128 byte tag inside a MP3 file which would include would include title, artist, album, year, genre and a comment field. And this person himself implemented his idea and people welcomed it with open arms. Not much later Michael Mutschler, extended this tag which is called ID3 tag. He named his version ID3 v1.1. The current version of ID3 is v2.2.
You can read more about ID3 here http://www.id3.org/intro.html

Most of the CD ripping softwares include a custom or a default ID3 tag, but just in case your MP3 file does have an ID3 tag there are a plethora of software which will do it for you. The most famous, simple and easily available being Winamp, which has an in-built ID3 editor. In the Winamp playlist window just right-click on the playlist item whose ID3 tag you want edit, and select File Info, and you'll get a dialog box where you can input all the info about the song.

Some ID3 editors:
http://www.handyarchive.com/Audio/MP...ag-Editor.html
http://www.handyarchive.com/Audio/Mu...ag-Editor.html

Enjoy,
Pradeep.

Re: Read ID3 tag from a MP3 file

Quote:

Most of the CD ripping softwares include a custom or a default ID3 tag, but just in case your MP3 file does have an ID3 tag there are a plethora of software which will do it for you. The most famous, simple and easily available being Winamp, which has an in-built ID3 editor. In the Winamp playlist window just right-click on the playlist item whose ID3 tag you want edit, and select File Info, and you'll get a dialog box where you can input all the info about the song.

Yes I use that but thought that they keep it in seperate file but now I knew that they use the same file to store the data about the file.

Re: Read ID3 tag from a MP3 file

thank you for the code.
This helped me greatly.
However I am now trying to loop through a directory and get the id3 tag of each file in that directory.

Here's my code

Code:

<HTML>

<HEAD>

 <TITLE>MP3 Playlist</TITLE>

</HEAD>

<BODY>

<?php



//Declarations

$dir = "/private/var/root/Media/iTunes_Control/Music/F00";

//$mp3 = "/private/var/root/Media/iTunes_Control/Music/F00/YSDN.mp3"; //MP3 file to be read



                 //make a array of genres

    $genre_arr = array("Blues","Classic Rock","Country","Dance","Disco","Funk","Grunge",

"Hip-Hop","Jazz","Metal","New Age","Oldies","Other","Pop","R&B",

"Rap","Reggae","Rock","Techno","Industrial","Alternative","Ska",

"Death Metal","Pranks","Soundtrack","Euro-Techno","Ambient",

"Trip-Hop","Vocal","Jazz+Funk","Fusion","Trance","Classical",

"Instrumental","Acid","House","Game","Sound Clip","Gospel",

"Noise","AlternRock","Bass","Soul","Punk","Space","Meditative",

"Instrumental Pop","Instrumental Rock","Ethnic","Gothic",

"Darkwave","Techno-Industrial","Electronic","Pop-Folk",

"Eurodance","Dream","Southern Rock","Comedy","Cult","Gangsta",

"Top 40","Christian Rap","Pop/Funk","Jungle","Native American",

"Cabaret","New Wave","Psychadelic","Rave","Showtunes","Trailer",

"Lo-Fi","Tribal","Acid Punk","Acid Jazz","Polka","Retro",

"Musical","Rock & Roll","Hard Rock","Folk","Folk-Rock",

"National Folk","Swing","Fast Fusion","Bebob","Latin","Revival",

"Celtic","Bluegrass","Avantgarde","Gothic Rock","Progressive Rock",

"Psychedelic Rock","Symphonic Rock","Slow Rock","Big Band",

"Chorus","Easy Listening","Acoustic","Humour","Speech","Chanson",

"Opera","Chamber Music","Sonata","Symphony","Booty Bass","Primus",

"Porn Groove","Satire","Slow Jam","Club","Tango","Samba",

"Folklore","Ballad","Power Ballad","Rhythmic Soul","Freestyle",

"Duet","Punk Rock","Drum Solo","Acapella","Euro-House","Dance Hall");



//$dir = getcwd() . "\n";



// Open a known directory, and proceed to read its contents

if (is_dir($dir)) {

    if ($dh = opendir($dir)) {

        while (($fileread = readdir($dh)) !== false) {

            //show the file name and location

            $fullpath = $dir . $fileread;

            echo "filename: <b>$fullpath</b>";

            echo "<br>";



            //Get the ID3 Tag info

            $musicfile = $fullpath; //fopen($fullpath, "r");

            fseek($musicfile, -128, SEEK_END);

            

            $tag = fread($musicfile, 3);

            

            if($tag == "TAG")

            {

            $data["song"] = trim(fread($musicfile, 30));

            $data["artist"] = trim(fread($musicfile, 30));

            $data["album"] = trim(fread($musicfile, 30));

            $data["year"] = trim(fread($musicfile, 4));

            $data["comment"] = trim(fread($musicfile, 30));

            $data["genre"] = $genre_arr[ord(trim(fread($musicfile, 1)))];

            }

            else

                    die("MP3 file does not have any ID3 tag!");



            fclose($musicfile);



            while(list($key, $value) = each($data))

                {

                print("$key: $value<br>\r\n");

                }

        }

    }

}

//echo getcwd() . "\n";

//echo $sCwd = (substr(PHP_OS, 0, 3) == 'WIN') ? strtolower(getcwd()) : getcwd();

?>

</BODY>

</HTML>

when you try to run it you get the following error:

Code:

filename: /private/var/root/Media/iTunes_Control/Music/F00.



Warning: fseek(): supplied argument is not a valid stream resource in /private/var/root/Sites/getid3.php on line 49



Warning: fread(): supplied argument is not a valid stream resource in /private/var/root/Sites/getid3.php on line 51

MP3 file does not have any ID3 tag!

any ideas why?

Re: Read ID3 tag from a MP3 file

You are trying to use fseek without opening the file.

Re: Read ID3 tag from a MP3 file

shaiss,

Did you get this working? I am trying to do the exact same thing you are.

Re: Read ID3 tag from a MP3 file

I had run this on Windows, it worked perfectly!

Re: Read ID3 tag from a MP3 file

Any idea how to get the length of the audio using your basic code?

Re: Read ID3 tag from a MP3 file

You can Get Mp3 Tags without fully downloading the File.WE download file in chunks ,WE extract first and last 64 kb of the file Using ID3 PHP library and CURL.
I have created a function that will do that
Download id3 library and include it in your script .

PHP Code:


		
			
require_once("id3/getid3.php");

function getfileinfo($remoteFile)

*

{

*

$url=$remoteFile;

$uuid=uniqid("designaeon_", true);

*$file="temp/".$uuid.".mp3";

*$size=0;

*$ch = curl_init($remoteFile);

*//==============================Get Size==========================//

*$contentLength = 'unknown';

*$ch1 = curl_init($remoteFile);

*curl_setopt($ch1, CURLOPT_NOBODY, true);

*curl_setopt($ch1, CURLOPT_RETURNTRANSFER, true);

*curl_setopt($ch1, CURLOPT_HEADER, true);

*curl_setopt($ch1, CURLOPT_FOLLOWLOCATION, true); //not necessary unless the file redirects (like the PHP example we're using here)

*$data = curl_exec($ch1);

*curl_close($ch1);

*if (preg_match('/Content-Length: (\d+)/', $data, $matches)) {

*$contentLength = (int)$matches[1];

*$size=$contentLength;

*}

*//==============================Get Size==========================//

*

*if (!$fp = fopen($file, "wb")) {

*echo 'Error opening temp file for binary writing';

*return false;

*} else if (!$urlp = fopen($url, "r")) {

*echo 'Error opening URL for reading';

*return false;

*}

*try {

*$to_get = 65536; // 64 KB

*$chunk_size = 4096; // Haven't bothered to tune this, maybe other values would work better??

*$got = 0; $data = null;

*

*// Grab the first 64 KB of the file

*while(!feof($urlp) && $got < $to_get) {

*$data = $data . fgets($urlp, $chunk_size);

*$got += $chunk_size;

*}

*fwrite($fp, $data);

*

*// Grab the last 64 KB of the file, if we know how big it is.

*if ($size > 0) {

*curl_setopt($ch, CURLOPT_FILE, $fp);

*curl_setopt($ch, CURLOPT_HEADER, 0);

*curl_setopt($ch, CURLOPT_RESUME_FROM, $size - $to_get);

*curl_exec($ch);

*}

*

*// Now $fp should be the first and last 64KB of the file!!

*

@fclose($fp);

*@fclose($urlp);

*} catch (Exception $e) {

*@fclose($fp);

*@fclose($urlp);

*echo 'Error transfering file using fopen and cURL !!';

*return false;

*}

*$getID3 = new getID3;

*$filename=$file;

*$ThisFileInfo = $getID3->analyze($filename);

*getid3_lib::CopyTagsToComments($ThisFileInfo);

*unlink($file);

*return $ThisFileInfo;

}

You can get Full tuet on here...
hxxp://designaeon.com/read-mp3-tags-without-downloading-it/