/inc/MP3/Id.php
PHP | 1290 lines | 757 code | 143 blank | 390 comment | 138 complexity | d24150e30324e96e75874c95f6394407 MD5 | raw file
Possible License(s): GPL-2.0, BSD-3-Clause, Apache-2.0, LGPL-2.1
- <?php
- //
- // +----------------------------------------------------------------------+
- // | PHP Version 4 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1997-2003 The PHP Group |
- // +----------------------------------------------------------------------+
- // | This code is released under the GNU LGPL Go read it over here: |
- // | http://www.gnu.org/copyleft/lesser.html |
- // +----------------------------------------------------------------------+
- // | Authors: Sandy McArthur Jr. <Leknor@Leknor.com> |
- // +----------------------------------------------------------------------+
- //
- // $Id$
- //
-
- // Uncomment the folling define if you want the class to automatically
- // read the MPEG frame info to get bitrate, mpeg version, layer, etc.
- //
- // NOTE: This is needed to maintain pre-version 1.0 behavior which maybe
- // needed if you are using info that is from the mpeg frame. This includes
- // the length of the song.
- //
- // This is discouraged because it will siginfincantly lengthen script
- // execution time if all you need is the ID3 tag info.
- // define('ID3_AUTO_STUDY', true);
-
- // Uncomment the following define if you want tons of debgging info.
- // Tip: make sure you use a <PRE> block so the print_r's are readable.
- // define('ID3_SHOW_DEBUG', true);
-
- require_once "PEAR.php" ;
-
- /**
- * File not opened
- * @const PEAR_MP3_ID_FNO
- */
- define('PEAR_MP3_ID_FNO', 1);
-
- /**
- * Read error
- * @const PEAR_MP3_ID_RE
- */
- define('PEAR_MP3_ID_RE', 2);
-
- /**
- * Tag not found
- * @const PEAR_MP3_ID_TNF
- */
- define('PEAR_MP3_ID_TNF', 3);
-
- /**
- * File is not a MP3 file (corrupted?)
- * @const PEAR_MP3_ID_NOMP3
- */
- define('PEAR_MP3_ID_NOMP3', 4);
-
- /**
- * A Class for reading/writing MP3 ID3 tags
- *
- * Note: This code doesn't try to deal with corrupt mp3s. So if you get
- * incorrect length times or something else it may be your mp3. To fix just
- * re-enocde from the CD. :~)
- *
- * eg:
- * require_once("MP3/Id.php");
- * $file = "Some Song.mp3";
- *
- * $id3 = &new MP3_Id();
- * $id3->read($file);
- * print_r($id3);
- *
- * echo $id3->getTag('artists');
- *
- * $id3->comment = "Be gentle with that file.";
- * $id3->write();
- * $id3->read($file);
- * print_r($id3 );
- *
- * @package MP3_Id
- * @author Sandy McArthur Jr. <Leknor@Leknor.com>
- * @version $Version$
- */
- class MP3_Id {
-
- /**
- * mp3/mpeg file name
- * @var boolean
- */
- var $file = false;
- /**
- * ID3 v1 tag found? (also true if v1.1 found)
- * @var boolean
- */
- var $id3v1 = false;
- /**
- * ID3 v1.1 tag found?
- * @var boolean
- */
- var $id3v11 = false;
- /**
- * ID3 v2 tag found? (not used yet)
- * @var boolean
- */
- var $id3v2 = false;
-
- // ID3v1.1 Fields:
- /**
- * trackname
- * @var string
- */
- var $name = '';
- /**
- * artists
- * @var string
- */
- var $artists = '';
- /**
- * album
- * @var string
- */
- var $album = '';
- /**
- * year
- * @var string
- */
- var $year = '';
- /**
- * comment
- * @var string
- */
- var $comment = '';
- /**
- * track number
- * @var integer
- */
- var $track = 0;
- /**
- * genre name
- * @var string
- */
- var $genre = '';
- /**
- * genre number
- * @var integer
- */
- var $genreno = 255;
-
- // MP3 Frame Stuff
- /**
- * Was the file studied to learn more info?
- * @var boolean
- */
- var $studied = false;
-
- /**
- * version of mpeg
- * @var integer
- */
- var $mpeg_ver = 0;
- /**
- * version of layer
- * @var integer
- */
- var $layer = 0;
- /**
- * version of bitrate
- * @var integer
- */
- var $bitrate = 0;
- /**
- * Frames are crc protected?
- * @var boolean
- */
- var $crc = false;
- /**
- * frequency
- * @var integer
- */
- var $frequency = 0;
- /**
- * Frames padded
- * @var boolean
- */
- var $padding = false;
- /**
- * private bit set
- * @var boolean
- */
- var $private = false;
- /**
- * Mode (Stero etc)
- * @var string
- */
- var $mode = '';
- /**
- * Copyrighted
- * @var string
- */
- var $copyright = false;
- /**
- * On Original Media? (never used)
- * @var boolean
- */
- var $original = false;
- /**
- * Emphasis (also never used)
- * @var boolean
- */
- var $emphasis = '';
- /**
- * Bytes in file
- * @var integer
- */
- var $filesize = -1;
- /**
- * Byte at which the first mpeg header was found
- * @var integer
- */
- var $frameoffset = -1;
- /**
- * length of mp3 format hh:ss
- * @var string
- */
- var $length = false;
- /**
- * length of mp3 in seconds
- * @var string
- */
- var $lengths = false;
-
- /**
- * if any errors they will be here
- * @var string
- */
- var $error = false;
-
- /**
- * print debugging info?
- * @var boolean
- */
- var $debug = false;
- /**
- * print debugg
- * @var string
- */
- var $debugbeg = '<DIV STYLE="margin: 0.5 em; padding: 0.5 em; border-width: thin; border-color: black; border-style: solid">';
- /**
- * print debugg
- * @var string
- */
- var $debugend = '</DIV>';
-
- var $mp3fmode = 'w';
-
- /*
- * creates a new id3 object
- * and loads a tag from a file.
- *
- * @param string $study study the mpeg frame to get extra info like bitrate and frequency
- * You should advoid studing alot of files as it will siginficantly
- * slow this down.
- * @access public
- */
- function MP3_Id($study = false) {
- if(defined('ID3_SHOW_DEBUG')) $this->debug = true;
- $this->study=($study || defined('ID3_AUTO_STUDY'));
-
- } // id3()
-
- /**
- * reads the given file and parse it
- *
- * @param string $file the name of the file to parse
- * @return mixed PEAR_Error on error
- * @access public
- */
- function read( $file="") {
- if ($this->debug) print($this->debugbeg . "id3('$file')<HR>\n");
-
- if(!empty($file))$this->file = $file;
- if ($this->debug) print($this->debugend);
-
- if (file_exists($file)) {
- $this->mp3infile = $file;
- $this->_getTagVersion($this->mp3infile);
- if ($this->id3v2) {
- return $this->_read_v2();
- }
- }
-
-
-
- return $this->_read_v1();
- }
-
- function _getTagVersion($mp3file) {
- if (file_exists($mp3file)) {
- $fp = fopen($mp3file, 'rb');
- // check for ID3v2
- if (fread($fp, 3) == "ID3") {
- $this->id3v2 = True;
- }
-
- fclose($fp);
- }
-
- }
-
- /**
- * sets a field
- *
- * possible names of tags are:
- * artists - Name of band or artist
- * album - Name of the album
- * year - publishing year of the album or song
- * comment - song comment
- * track - the number of the track
- * genre - genre of the song
- * genreno - Number of the genre
- *
- * @param mixed $name Name of the tag to set or hash with the key as fieldname
- * @param mixed $value the value to set
- *
- * @access public
- */
- function setTag($name, $value) {
- if( is_array($name)) {
- foreach( $name as $n => $v) {
- $this -> $n = $v ;
- }
- } else {
- $this -> $name = $value ;
- }
- }
-
- /**
- * get the value of a tag
- *
- * @param string $name the name of the field to get
- * @param mixed $default returned if the field not exists
- *
- * @return mixed The value of the field
- * @access public
- * @see setTag
- */
- function getTag($name, $default = 0) {
- if(empty($this -> $name)) {
- return $default ;
- } else {
- return $this -> $name ;
- }
- }
-
- /**
- * update the id3v1 tags on the file.
- * Note: If/when ID3v2 is implemented this method will probably get another
- * parameters.
- *
- * @param boolean $v1 if true update/create an id3v1 tag on the file. (defaults to true)
- *
- * @access public
- */
- function write($v1 = true) {
- if ($this->debug) print($this->debugbeg . "write()<HR>\n");
- if ($v1) {
- $this->_write_v1();
- }
- if ($this->debug) print($this->debugend);
- } // write()
-
- /**
- * study() - does extra work to get the MPEG frame info.
- *
- * @access public
- */
- function study() {
- $this->studied = true;
- $this->_readframe();
- } // study()
-
- /**
- * copy($from) - set's the ID3 fields to the same as the fields in $from
- *
- * @param string $from fields to copy
- * @access public
- */
- function copy($from) {
- if ($this->debug) print($this->debugbeg . "copy(\$from)<HR>\n");
- $this->name = $from->name;
- $this->artists = $from->artists;
- $this->album = $from->album;
- $this->year = $from->year;
- $this->comment = $from->comment;
- $this->track = $from->track;
- $this->genre = $from->genre;
- $this->genreno = $from->genreno;
- if ($this->debug) print($this->debugend);
- } // copy($from)
-
- /**
- * remove - removes the id3 tag(s) from a file.
- *
- * @param boolean $id3v1 true to remove the tag
- * @param boolean $id3v2 true to remove the tag (Not yet implemented)
- *
- * @access public
- */
- function remove($id3v1 = true, $id3v2 = true) {
- if ($this->debug) print($this->debugbeg . "remove()<HR>\n");
-
- if ($id3v1) {
- $this->_remove_v1();
- }
-
- if ($id3v2) {
- // TODO: write ID3v2 code
- }
-
- if ($this->debug) print($this->debugend);
- } // remove
-
-
- /**
- * read a ID3 v1 or v1.1 tag from a file
- *
- * $file should be the path to the mp3 to look for a tag.
- * When in doubt use the full path.
- *
- * @return mixed PEAR_Error if fails
- * @access private
- */
- function _read_v1() {
- if ($this->debug) print($this->debugbeg . "_read_v1()<HR>\n");
-
- if (! ($f = @fopen($this->file, 'rb')) ) {
- return PEAR::raiseError( "Unable to open " . $this->file, PEAR_MP3_ID_FNO);
- }
-
- if (fseek($f, -128, SEEK_END) == -1) {
- return PEAR::raiseError( 'Unable to see to end - 128 of ' . $this->file, PEAR_MP3_ID_RE);
- }
-
- $r = fread($f, 128);
- fclose($f);
-
- if ($this->debug) {
- $unp = unpack('H*raw', $r);
- print_r($unp);
- }
-
- $id3tag = $this->_decode_v1($r);
-
- if(!PEAR::isError( $id3tag)) {
- $this->id3v1 = true;
-
- $tmp = explode(Chr(0), $id3tag['NAME']);
- $this->name = $tmp[0];
-
- $tmp = explode(Chr(0), $id3tag['ARTISTS']);
- $this->artists = $tmp[0];
-
- $tmp = explode(Chr(0), $id3tag['ALBUM']);
- $this->album = $tmp[0];
-
- $tmp = explode(Chr(0), $id3tag['YEAR']);
- $this->year = $tmp[0];
-
- $tmp = explode(Chr(0), $id3tag['COMMENT']);
- $this->comment = $tmp[0];
-
- if (isset($id3tag['TRACK'])) {
- $this->id3v11 = true;
- $this->track = $id3tag['TRACK'];
- }
-
- $this->genreno = $id3tag['GENRENO'];
- $this->genre = $id3tag['GENRE'];
- } else {
- return $id3tag ;
- }
-
- if ($this->debug) print($this->debugend);
- } // _read_v1()
-
- /**
- * decodes that ID3v1 or ID3v1.1 tag
- *
- * false will be returned if there was an error decoding the tag
- * else an array will be returned
- *
- * @param string $rawtag tag to decode
- * @return string decoded tag
- * @access private
- */
- function _decode_v1($rawtag) {
- if ($this->debug) print($this->debugbeg . "_decode_v1(\$rawtag)<HR>\n");
-
- if ($rawtag[125] == Chr(0) and $rawtag[126] != Chr(0)) {
- // ID3 v1.1
- $format = 'a3TAG/a30NAME/a30ARTISTS/a30ALBUM/a4YEAR/a28COMMENT/x1/C1TRACK/C1GENRENO';
- } else {
- // ID3 v1
- $format = 'a3TAG/a30NAME/a30ARTISTS/a30ALBUM/a4YEAR/a30COMMENT/C1GENRENO';
- }
-
- $id3tag = unpack($format, $rawtag);
- if ($this->debug) print_r($id3tag);
-
- if ($id3tag['TAG'] == 'TAG') {
- $id3tag['GENRE'] = $this->getgenre($id3tag['GENRENO']);
- } else {
- $id3tag = PEAR::raiseError( 'TAG not found', PEAR_MP3_ID_TNF);
- }
- if ($this->debug) print($this->debugend);
- return $id3tag;
- } // _decode_v1()
-
-
- /**
- * writes a ID3 v1 or v1.1 tag to a file
- *
- * @return mixed returns PEAR_Error when fails
- * @access private
- */
- function _write_v1() {
- if ($this->debug) print($this->debugbeg . "_write_v1()<HR>\n");
-
- $file = $this->file;
-
- if (! ($f = @fopen($file, 'r+b')) ) {
- return PEAR::raiseError( "Unable to open " . $file, PEAR_MP3_ID_FNO);
- }
-
- if (fseek($f, -128, SEEK_END) == -1) {
- // $this->error = 'Unable to see to end - 128 of ' . $file;
- return PEAR::raiseError( "Unable to see to end - 128 of " . $file, PEAR_MP3_ID_RE);
- }
-
- $this->genreno = $this->getgenreno($this->genre, $this->genreno);
-
- $newtag = $this->_encode_v1();
-
- $r = fread($f, 128);
-
- if ( !PEAR::isError( $this->_decode_v1($r))) {
- if (fseek($f, -128, SEEK_END) == -1) {
- // $this->error = 'Unable to see to end - 128 of ' . $file;
- return PEAR::raiseError( "Unable to see to end - 128 of " . $file, PEAR_MP3_ID_RE);
- }
- fwrite($f, $newtag);
- } else {
- if (fseek($f, 0, SEEK_END) == -1) {
- // $this->error = 'Unable to see to end of ' . $file;
- return PEAR::raiseError( "Unable to see to end of " . $file, PEAR_MP3_ID_RE);
- }
- fwrite($f, $newtag);
- }
- fclose($f);
-
-
- if ($this->debug) print($this->debugend);
- } // _write_v1()
-
- /*
- * encode the ID3 tag
- *
- * the newly built tag will be returned
- *
- * @return string the new tag
- * @access private
- */
- function _encode_v1() {
- if ($this->debug) print($this->debugbeg . "_encode_v1()<HR>\n");
-
- if ($this->track) {
- // ID3 v1.1
- $id3pack = 'a3a30a30a30a4a28x1C1C1';
- $newtag = pack($id3pack,
- 'TAG',
- $this->name,
- $this->artists,
- $this->album,
- $this->year,
- $this->comment,
- $this->track,
- $this->genreno
- );
- } else {
- // ID3 v1
- $id3pack = 'a3a30a30a30a4a30C1';
- $newtag = pack($id3pack,
- 'TAG',
- $this->name,
- $this->artists,
- $this->album,
- $this->year,
- $this->comment,
- $this->genreno
- );
- }
-
- if ($this->debug) {
- print('id3pack: ' . $id3pack . "\n");
- $unp = unpack('H*new', $newtag);
- print_r($unp);
- }
-
- if ($this->debug) print($this->debugend);
- return $newtag;
- } // _encode_v1()
-
- /**
- * if exists it removes an ID3v1 or v1.1 tag
- *
- * returns true if the tag was removed or none was found
- * else false if there was an error
- *
- * @return boolean true, if the tag was removed
- * @access private
- */
- function _remove_v1() {
- if ($this->debug) print($this->debugbeg . "_remove_v1()<HR>\n");
-
- $file = $this->file;
-
- if (! ($f = fopen($file, 'r+b')) ) {
- return PEAR::raiseError( "Unable to open " . $file, PEAR_MP3_ID_FNO);
- }
-
- if (fseek($f, -128, SEEK_END) == -1) {
- return PEAR::raiseError( 'Unable to see to end - 128 of ' . $file, PEAR_MP3_ID_RE);
- }
-
- $r = fread($f, 128);
-
- $success = false;
- if ( !PEAR::isError( $this->_decode_v1($r))) {
- $size = filesize($this->file) - 128;
- if ($this->debug) print('size: old: ' . filesize($this->file));
- $success = ftruncate($f, $size);
- clearstatcache();
- if ($this->debug) print(' new: ' . filesize($this->file));
- }
- fclose($f);
- if ($this->debug) print($this->debugend);
- return $success;
- } // _remove_v1()
-
- /**
- * reads a frame from the file
- *
- * @return mixed PEAR_Error when fails
- * @access private
- */
- function _readframe() {
- if ($this->debug) print($this->debugbeg . "_readframe()<HR>\n");
-
- $file = $this->file;
-
- if (! ($f = fopen($file, 'rb')) ) {
- if ($this->debug) print($this->debugend);
- return PEAR::raiseError( "Unable to open " . $file, PEAR_MP3_ID_FNO) ;
- }
-
- $this->filesize = filesize($file);
-
- do {
- while (fread($f,1) != Chr(255)) { // Find the first frame
- if ($this->debug) echo "Find...\n";
- if (feof($f)) {
- if ($this->debug) print($this->debugend);
- return PEAR::raiseError( "No mpeg frame found", PEAR_MP3_ID_NOMP3) ;
- }
- }
- fseek($f, ftell($f) - 1); // back up one byte
-
- $frameoffset = ftell($f);
-
- $r = fread($f, 4);
- // Binary to Hex to a binary sting. ugly but best I can think of.
- $bits = unpack('H*bits', $r);
- $bits = base_convert($bits['bits'],16,2);
- } while (!$bits[8] and !$bits[9] and !$bits[10]); // 1st 8 bits true from the while
- if ($this->debug) print('Bits: ' . $bits . "\n");
-
- $this->frameoffset = $frameoffset;
-
- fclose($f);
-
- if ($bits[11] == 0) {
- $this->mpeg_ver = "2.5";
- $bitrates = array(
- '1' => array(0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 0),
- '2' => array(0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0),
- '3' => array(0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0),
- );
- } else if ($bits[12] == 0) {
- $this->mpeg_ver = "2";
- $bitrates = array(
- '1' => array(0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 0),
- '2' => array(0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0),
- '3' => array(0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0),
- );
- } else {
- $this->mpeg_ver = "1";
- $bitrates = array(
- '1' => array(0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 0),
- '2' => array(0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 0),
- '3' => array(0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 0),
- );
- }
- if ($this->debug) print('MPEG' . $this->mpeg_ver . "\n");
-
- $layer = array(
- array(0,3),
- array(2,1),
- );
- $this->layer = $layer[$bits[13]][$bits[14]];
- if ($this->debug) print('layer: ' . $this->layer . "\n");
-
- if ($bits[15] == 0) {
- // It's backwards, if the bit is not set then it is protected.
- if ($this->debug) print("protected (crc)\n");
- $this->crc = true;
- }
-
- $bitrate = 0;
- if ($bits[16] == 1) $bitrate += 8;
- if ($bits[17] == 1) $bitrate += 4;
- if ($bits[18] == 1) $bitrate += 2;
- if ($bits[19] == 1) $bitrate += 1;
- $this->bitrate = $bitrates[$this->layer][$bitrate];
-
- $frequency = array(
- '1' => array(
- '0' => array(44100, 48000),
- '1' => array(32000, 0),
- ),
- '2' => array(
- '0' => array(22050, 24000),
- '1' => array(16000, 0),
- ),
- '2.5' => array(
- '0' => array(11025, 12000),
- '1' => array(8000, 0),
- ),
- );
- $this->frequency = $frequency[$this->mpeg_ver][$bits[20]][$bits[21]];
-
- $this->padding = $bits[22];
- $this->private = $bits[23];
-
- $mode = array(
- array('Stereo', 'Joint Stereo'),
- array('Dual Channel', 'Mono'),
- );
- $this->mode = $mode[$bits[24]][$bits[25]];
-
- // XXX: I dunno what the mode extension is for bits 26,27
-
- $this->copyright = $bits[28];
- $this->original = $bits[29];
-
- $emphasis = array(
- array('none', '50/15ms'),
- array('', 'CCITT j.17'),
- );
- $this->emphasis = $emphasis[$bits[30]][$bits[31]];
-
- if ($this->bitrate == 0) {
- $s = -1;
- } else {
- $s = ((8*filesize($this->file))/1000) / $this->bitrate;
- }
- $this->length = sprintf('%02d:%02d',floor($s/60),floor($s-(floor($s/60)*60)));
- $this->lengths = (int)$s;
-
- if ($this->debug) print($this->debugend);
- } // _readframe()
-
-
- /**
- * read ID3v2 tag from a file
- *
- * @access private
- */
- function _read_v2() {
- if (!file_exists($this->mp3infile)) {
- return 0;
- }
- $tagOffset =0;
- $frames = array();
-
- // Bad Frames - (courtesy of eyeD3 http://eyed3.nicfit.net/ )
- $knownBadFrames = array("\x00\x00MP",
- "\x00MP3",
- " MP3",
- "MP3e",
- "\x00MP",
- " MP",
- "MP3",
- "COM ",
- "TCP ", // iTunes
- "CM1 " // Script kiddie
- );
-
- $fp = fopen($this->mp3infile, 'rb');
- if (!$fp) {
- return PEAR::raiseError( "Unable to open " . $this->mp3infile, PEAR_MP3_ID_FNO);
- }
-
- // skip first 3 bytes
- fseek($fp, 3);
-
- // get version/revision numbers
- $major = 2;
- $minor = ord(fread($fp, 1));
- $rev = ord(fread($fp, 1));
-
- if ($this->debug) print "found tag version ".$major.".".$minor.".".$rev."\n";
-
- // flags (3 bits for 2.3.0 and 4 for 2.4.0 respectively)
- $flags = array();
- $flagbyte = ord(fread($fp, 1));
- $flags['unsync'] = (bool) ($flagbyte & 64);
- $flags['extended'] = (bool) ($flagbyte & 32);
- $flags['experimental'] = (bool) ($flagbyte & 16);
- $flags['footer'] = (bool) ($flagbyte & 8);
-
- // 4 bytes synchsafe int for tagsize
- // (extended header, frames and padding)
- $tagSize = $this->_BigEnd2Int(fread($fp, 4), 1) + 10;
- if ($this->debug) print "tag size: ".$tagSize."\n";
-
- // parse extended header
- $extHeaderLen = 0;
- $extHeaders = array();
- if ($flags['extended']==True) {
- // FIXME: we should parse ext. header but for now we just skip ...
- switch($minor) {
- case 3:
- $extHeaderLen = $this->_BigEnd2Int(fread($fp, 1));
- $extHeaderBytes = fread($fp, $extHeaderLen -1);
- break;
- case 4:
- $extHeaderLen = $this->_BigEnd2Int(fread($fp, 4), 1);
- $extHeaderBytes = fread($extHeaderLen -4);
- break;
- default:
- break;
- }
- }
-
- if ($this->debug) print "external headersize: ".$extHeaderLen."\n";
- $frameLen = $tagSize - 10 - $extHeaderlen;
- if ($flags['footer']==True) {
- $frameLen -= 10;
- }
-
- // read framedata
- // FIXME: check whether pointer is on right position
- $framedata = fread($fp, $frameLen);
- if (($flags['unsync']==True) && ($minor <= 3)) {
- $framedata = $this->_DeUnsynchronise($framedata);
- }
-
-
- while(isset($framedata) && strlen($framedata) > 0) {
- if (strlen($framedata) <= 10) {
- // Out of range .. padding .. whatever
- break;
- }
-
- if ($minor > 2) {
- // Frame ID $xx xx xx xx (four characters)
- // Size $xx xx xx xx (32-bit integer in v2.3, 28-bit synchsafe in v2.4+)
- // Flags $xx xx
-
- $frameHeader = substr($framedata, 0, 10);
- $framedata = substr($framedata, 10);
- $frameName = substr($frameHeader, 0, 4);
- $frameSizeBytes = substr($frameHeader, 4, 4);
- if ($minor == 3) {
- // 2.3
- $frameSize = $this->_BigEnd2Int($frameSizeBytes);
- } else {
- // 2.4
- $frameSize = $this->_BigEnd2Int($frameSizeBytes, 1);
- }
-
- if ($frameName == "\x00\x00\x00" || $frameName== "\x00\x00\x00\x00") {
- // padding
- break;
- }
-
- if (!$this->_isValidID3v2FrameName($frameName, $minor) ||
- in_array($frameName, $knownBadFrames)) {
- continue;
- }
-
- $frameInfo = $this->_v2LookupFrame($frameName, $minor);
- if ($frameInfo) {
- $data = unpack("a*", substr($framedata, 0, $frameSize));
- $frameInfo['data'] = trim(str_replace("\x00","", $data[1]));
- $frames[$frameName] = $frameInfo;
- }
-
-
- $framedata = substr($framedata, $frameSize);
-
- } else {
-
- break;
- }
- }
-
- $this->_map2V1($frames);
-
- fclose($fp);
- }
-
-
- function _map2V1($frames) {
- $conv = array('name' => 'TIT2', 'artists'=>'TOPE','album'=>'TALB',
- 'year' => 'TYER', 'comment'=>'COMM','track'=>'TRCK',
- 'genre'=> 'TCON');
- foreach($conv as $v1name=>$v2name) {
- if (isset($frames[$v2name])) {
- $this->$v1name = $frames[$v2name]['data'];
- }
- }
- }
-
-
- /**
- *
- * @access private
- */
- function _BigEnd2Int($bytestr, $synchsafe=False) {
- $intv = 0;
- $bytestrlen = strlen($bytestr);
- for($i=0; $i<$bytestrlen; $i++) {
- if ($synchsafe) {
- $intv = $intv | (ord($bytestr{$i}) & 127) << (($bytestrlen - 1 - $i) * 7);
- } else {
- $intv += ord($bytestr{$i}) * pow(256, ($bytestrlen - 1 - $i));
- }
- }
-
- return $intv;
- }
-
- function _DeUnsynchronise($data) {
- return str_replace("\xFF\x00", "\xFF", $data);
- }
-
-
- function _isValidID3v2FrameName($name, $minor) {
- switch($minor) {
- case 2:
- return preg_match("#^[A-Z][A-Z0-9]{2}#", $name);
- break;
- case 3:
- case 4:
- return preg_match("#^[A-Z][A-Z0-9]{3}#", $name);
- break;
- }
-
- return False;
- }
-
-
-
- function _v2LookupFrame($frameName, $minor) {
- // acc. to http://www.id3.org/id3v2.4.0-frames.txt
- $default = array('AENC' => array('desc'=>'Audio encryption'),
- 'APIC' => array('desc'=>'Attached picture'),
- 'ASPI' => array('desc'=>'Audio seek point index'),
- 'COMM' => array('desc'=>'Comments'),
- 'COMR' => array('desc'=>'Commercial frame'),
- 'ENCR' => array('desc'=>'Encryption method registration'),
- 'EQU2' => array('desc'=>'Equalisation (2)'),
- 'ETCO' => array('desc'=>'Event timing codes'),
- 'GEOB' => array('desc'=>'General encapsulated object'),
- 'GRID' => array('desc'=>'Group identification registration'),
- 'LINK' => array('desc'=>'Linked information'),
- 'MCDI' => array('desc'=>'Music CD identifier'),
- 'MLLT' => array('desc'=>'MPEG location lookup table'),
- 'OWNE' => array('desc'=>'Ownership frame'),
- 'PRIV' => array('desc'=>'Private Frame'),
- 'PCNT' => array('desc'=>'Play counter'),
- 'POPM' => array('desc'=>'Popularimeter'),
- 'POSS' => array('desc'=>'Position synchronisation frame'),
- 'RBUF' => array('desc'=>'Recommended buffer size'),
- 'RVA2' => array('desc'=>'Relative volume adjustment (2)'),
- 'RVRB' => array('desc'=>'Reverb'),
- 'SEEK' => array('desc'=>'Seek frame'),
- 'SIGN' => array('desc'=>'Signature frame'),
- 'SYLT' => array('desc'=>'Synchronized lyric/text'),
- 'SYTC' => array('desc'=>'Synchronized tempo codes'),
- 'TALB' => array('desc'=>'Album/Movie/Show title'),
- 'TBPM' => array('desc'=>'BPM (Beats per minute)'),
- 'TCOM' => array('desc'=>'Composer'),
- 'TCON' => array('desc'=>'Content type'),
- 'TCOP' => array('desc'=>'Copyright message'),
- 'TDEN' => array('desc'=>'Encoding time'),
- 'TDLY' => array('desc'=>'Playlist delay'),
- 'TDOR' => array('desc'=>'Original release time'),
- 'TDRC' => array('desc'=>'Recording time'),
- 'TDRL' => array('desc'=>'Release time'),
- 'TDTG' => array('desc'=>'Tagging time'),
- 'TENC' => array('desc'=>'Encoded by'),
- 'TEXT' => array('desc'=>'Lyricist/Text writer'),
- 'TFLT' => array('desc'=>'File type'),
- 'TIPL' => array('desc'=>'Involved people list'),
- 'TIT1' => array('desc'=>'Content group description'),
- 'TIT2' => array('desc'=>'Title/songname/content description'),
- 'TIT3' => array('desc'=>'Subtitle/Description refinement'),
- 'TKEY' => array('desc'=>'Initial key'),
- 'TLAN' => array('desc'=>'Language(s)'),
- 'TLEN' => array('desc'=>'Length'),
- 'TMCL' => array('desc'=>'Musician credit list'),
- 'TMED' => array('desc'=>'Media type'),
- 'TMOO' => array('desc'=>'Mood'),
- 'TOAL' => array('desc'=>'Original album/movie/show title'),
- 'TOFN' => array('desc'=>'Original filename'),
- 'TOLY' => array('desc'=>'Original lyricist(s)/text writer(s)'),
- 'TOPE' => array('desc'=>'Original artist(s)/ performer(s)'),
- 'TOWN' => array('desc'=>'File owner/licensee'),
- 'TPE1' => array('desc'=>'Lead performer(s)/Soloist(s)'),
- 'TPE2' => array('desc'=>'Band/orchestra/accompainment'),
- 'TPE3' => array('desc'=>'Conductor/performer refinement'),
- 'TPE4' => array('desc'=>'Interpreted, remixed or otherwise modified by'),
- 'TPOS' => array('desc'=>'Part of a set'),
- 'TPRO' => array('desc'=>'Produced notice'),
- 'TPUB' => array('desc'=>'Publisher'),
- 'TRCK' => array('desc'=>'Track number/Position in set'),
- 'TRSN' => array('desc'=>'Internet radio station name'),
- 'TRSO' => array('desc'=>'Internet radio station owner'),
- 'TSOA' => array('desc'=>'Album sort order'),
- 'TSOP' => array('desc'=>'Performer sort order'),
- 'TSOT' => array('desc'=>'Title sort order'),
- 'TSRC' => array('desc'=>'ISRC (international standard recording code)'),
- 'TSSE' => array('desc'=>'Software/Hardware and settings used for encoding'),
- 'TSST' => array('desc'=>'Set subtitle'),
- 'TYER' => array('desc'=>'Year'), // 2.3
- 'TXXX' => array('desc'=>'User defined Text information frame'),
- 'UFID' => array('desc'=>'Unique file identifier'),
- 'USER' => array('desc'=>'Terms of use'),
- 'USLT' => array('desc'=>'Unsynchronized lyric/text transcription'),
- 'WCOM' => array('desc'=>'Commercial information'),
- 'WCOP' => array('desc'=>'Copyright/Legal information'),
- 'WOAF' => array('desc'=>'Official audio file webpage'),
- 'WOAR' => array('desc'=>'Official artist/performer website'),
- 'WOAS' => array('desc'=>'Official audio source webpage'),
- 'WORS' => array('desc'=>'Official internet radio station homepage'),
- 'WPAY' => array('desc'=>'Payment'),
- 'WPUB' => array('desc'=>'Publishers official webpage'),
- 'WXXX' => array('desc'=>'User defined URL link frame')
- );
- if (array_key_exists($frameName, $default)) {
- return $default[$frameName];
- }
-
- return False;
- }
-
-
- /**
- * getGenre - return the name of a genre number
- *
- * if no genre number is specified the genre number from
- * $this->genreno will be used.
- *
- * the genre is returned or false if an error or not found
- * no error message is ever returned
- *
- * @param integer $genreno Number of the genre
- * @return mixed false, if no genre found, else string
- *
- * @access public
- */
- function getGenre($genreno) {
- if ($this->debug) print($this->debugbeg . "getgenre($genreno)<HR>\n");
-
- $genres = $this->genres();
- if (isset($genres[$genreno])) {
- $genre = $genres[$genreno];
- if ($this->debug) print($genre . "\n");
- } else {
- $genre = '';
- }
-
- if ($this->debug) print($this->debugend);
- return $genre;
- } // getGenre($genreno)
-
- /*
- * getGenreNo - return the number of the genre name
- *
- * the genre number is returned or 0xff (255) if a match is not found
- * you can specify the default genreno to use if one is not found
- * no error message is ever returned
- *
- * @param string $genre Name of the genre
- * @param integer $default Genre number in case of genre not found
- *
- * @access public
- */
- function getGenreNo($genre, $default = 0xff) {
- if ($this->debug) print($this->debugbeg . "getgenreno('$genre',$default)<HR>\n");
-
- $genres = $this->genres();
- $genreno = false;
- if ($genre) {
- foreach ($genres as $no => $name) {
- if (strtolower($genre) == strtolower($name)) {
- if ($this->debug) print("$no:'$name' == '$genre'");
- $genreno = $no;
- }
- }
- }
- if ($genreno === false) $genreno = $default;
- if ($this->debug) print($this->debugend);
- return $genreno;
- } // getGenreNo($genre, $default = 0xff)
-
- /*
- * genres - returns an array of the ID3v1 genres
- *
- * @return array
- *
- * @access public
- */
- function genres() {
- return array(
- 0 => 'Blues',
- 1 => 'Classic Rock',
- 2 => 'Country',
- 3 => 'Dance',
- 4 => 'Disco',
- 5 => 'Funk',
- 6 => 'Grunge',
- 7 => 'Hip-Hop',
- 8 => 'Jazz',
- 9 => 'Metal',
- 10 => 'New Age',
- 11 => 'Oldies',
- 12 => 'Other',
- 13 => 'Pop',
- 14 => 'R&B',
- 15 => 'Rap',
- 16 => 'Reggae',
- 17 => 'Rock',
- 18 => 'Techno',
- 19 => 'Industrial',
- 20 => 'Alternative',
- 21 => 'Ska',
- 22 => 'Death Metal',
- 23 => 'Pranks',
- 24 => 'Soundtrack',
- 25 => 'Euro-Techno',
- 26 => 'Ambient',
- 27 => 'Trip-Hop',
- 28 => 'Vocal',
- 29 => 'Jazz+Funk',
- 30 => 'Fusion',
- 31 => 'Trance',
- 32 => 'Classical',
- 33 => 'Instrumental',
- 34 => 'Acid',
- 35 => 'House',
- 36 => 'Game',
- 37 => 'Sound Clip',
- 38 => 'Gospel',
- 39 => 'Noise',
- 40 => 'Alternative Rock',
- 41 => 'Bass',
- 42 => 'Soul',
- 43 => 'Punk',
- 44 => 'Space',
- 45 => 'Meditative',
- 46 => 'Instrumental Pop',
- 47 => 'Instrumental Rock',
- 48 => 'Ethnic',
- 49 => 'Gothic',
- 50 => 'Darkwave',
- 51 => 'Techno-Industrial',
- 52 => 'Electronic',
- 53 => 'Pop-Folk',
- 54 => 'Eurodance',
- 55 => 'Dream',
- 56 => 'Southern Rock',
- 57 => 'Comedy',
- 58 => 'Cult',
- 59 => 'Gangsta',
- 60 => 'Top 40',
- 61 => 'Christian Rap',
- 62 => 'Pop/Funk',
- 63 => 'Jungle',
- 64 => 'Native US',
- 65 => 'Cabaret',
- 66 => 'New Wave',
- 67 => 'Psychadelic',
- 68 => 'Rave',
- 69 => 'Showtunes',
- 70 => 'Trailer',
- 71 => 'Lo-Fi',
- 72 => 'Tribal',
- 73 => 'Acid Punk',
- 74 => 'Acid Jazz',
- 75 => 'Polka',
- 76 => 'Retro',
- 77 => 'Musical',
- 78 => 'Rock & Roll',
- 79 => 'Hard Rock',
- 80 => 'Folk',
- 81 => 'Folk-Rock',
- 82 => 'National Folk',
- 83 => 'Swing',
- 84 => 'Fast Fusion',
- 85 => 'Bebob',
- 86 => 'Latin',
- 87 => 'Revival',
- 88 => 'Celtic',
- 89 => 'Bluegrass',
- 90 => 'Avantgarde',
- 91 => 'Gothic Rock',
- 92 => 'Progressive Rock',
- 93 => 'Psychedelic Rock',
- 94 => 'Symphonic Rock',
- 95 => 'Slow Rock',
- 96 => 'Big Band',
- 97 => 'Chorus',
- 98 => 'Easy Listening',
- 99 => 'Acoustic',
- 100 => 'Humour',
- 101 => 'Speech',
- 102 => 'Chanson',
- 103 => 'Opera',
- 104 => 'Chamber Music',
- 105 => 'Sonata',
- 106 => 'Symphony',
- 107 => 'Booty Bass',
- 108 => 'Primus',
- 109 => 'Porn Groove',
- 110 => 'Satire',
- 111 => 'Slow Jam',
- 112 => 'Club',
- 113 => 'Tango',
- 114 => 'Samba',
- 115 => 'Folklore',
- 116 => 'Ballad',
- 117 => 'Power Ballad',
- 118 => 'Rhytmic Soul',
- 119 => 'Freestyle',
- 120 => 'Duet',
- 121 => 'Punk Rock',
- 122 => 'Drum Solo',
- 123 => 'Acapella',
- 124 => 'Euro-House',
- 125 => 'Dance Hall',
- 126 => 'Goa',
- 127 => 'Drum & Bass',
- 128 => 'Club-House',
- 129 => 'Hardcore',
- 130 => 'Terror',
- 131 => 'Indie',
- 132 => 'BritPop',
- 133 => 'Negerpunk',
- 134 => 'Polsk Punk',
- 135 => 'Beat',
- 136 => 'Christian Gangsta Rap',
- 137 => 'Heavy Metal',
- 138 => 'Black Metal',
- 139 => 'Crossover',
- 140 => 'Contemporary Christian',
- 141 => 'Christian Rock',
- 142 => 'Merengue',
- 143 => 'Salsa',
- 144 => 'Trash Metal',
- 145 => 'Anime',
- 146 => 'Jpop',
- 147 => 'Synthpop'
- );
- } // genres
- } // end of id3
-
- ?>