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nID3class.php
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<?php
/*
* .mp3 ID3-Tag Reader
* -------------------
*
* Script: nID3
*
* Version: 1.0
* Release: 01.06.2020
*
* Author: numaek
* Copyright (c): 2004-2020 by www.numaek.de
*
* ************************************************************************************************************************************************************************************
*/
define('APIC_DEF_IMG', 'apic_default.jpg'); // Bild für den Fehlerfall, falls Datei als Bild eingebunden ist.
/*
* Methoden:
* =========
*
* $ID3_daten = new nID3('DATEI'); // Klasse initialisieren und Daten auslesen. DATEI mit relativen Pfadangaben! Nur .mp3-Format!
*
*
* $ID3_daten::getStructure() // Zeigt die Struktur des Daten-Arrays an
*
* $ID3_daten::getTagList() // Listet alle zu durchsuchenden Tags auf
*
*
* $ID3_daten->getAllTags() // Listet alle gefundenen Tags auf
*
* $ID3_daten->getTag('TAGNAME') // Liest einen einzelnen Tag aus
*
* $ID3_daten->getArray() // Gibt alle ermittelten Daten als Array zurück
*
* $ID3_daten->getVersion() // Gibt die ID3-Version aus
*
* $ID3_daten->getLayer() // Gibt den MPEG-Layer aus
*
* $ID3_daten->getSampleRate() // Gibt die SampleRate aus
*
* $ID3_daten->getBitRate() // Gibt die Bitrate aus
*
* $ID3_daten->getChannels() // Gibt die Anzahl der Kanäle aus
*
* $ID3_daten->getDuration() // Gibt die Laufzeit aus
*
*
* $ID3_daten->getTitle() // Gibt den Titel aus
*
* $ID3_daten->getArtist() // Gibt den Initerpreten aus
*
* $ID3_daten->getAlbum() // Gibt den Albumnamen aus
*
* $ID3_daten->getGenre() // Gibt das Genre aus
*
* $ID3_daten->getTrack() // Gibt die Track-Nummer aus
*
* $ID3_daten->getBPM() // Gibt die BPM aus
*
* $ID3_daten->getComment() // Gibt den Kommentar aus
*
*
* $ID3_daten->getID3V1Tags() // Gibt alle ID3V1-Tags in einem assoziativem Array aus
*
*
* $ID3_daten->getImage() // Gibt den HTML-Code des Bildes aus
*
* $ID3_daten->getImageType() // Gibt den Typ des Bildes aus
*
* $ID3_daten->saveImage('FILENAME') // Speichert das Bild auf dem Server. FILENAME ohne Mimetype (wird automatisch ermittelt)!
*
* $ID3_daten->apicDefault('FILENAME') // Überschreibt das Default-Bild für ein nicht gefundenes Cover-Bild. FILENAME ohne Mimetype!
*
* $ID3_daten->beAnImage() // Datei gibt sich als (Cover)Bild aus. <img src="nID3Class.php?datei=DATEI">
*
*
* $ID3_daten->getWaveForm(w, h, 'cFill', 'cStroke') // Zeigt ein Bild der Wellenform an (w = Breite in Pixel, h = Hoehe, Hintergrundfarbe, Strichfarbe z.B. '#00FFFF')
*
*/
// ####################################################################################################################################################################################
// Dateiausgabe als (Cover)Bild
// ****************************
if( isset($_GET['datei']) )
{
$fileData = new nID3($_GET['datei']);
$fileData->beAnImage();
}
class nID3
{
public $file;
public $nID3data;
public $tagsNr = 0;
public $tagsLength = 0;
public $apicDefault = '';
public $error = '';
public static $tagUse = array(
"TIT2" => "Titel",
"TPE1" => "Interpret",
"TALB" => "Album",
"TIT3" => "Untertitel",
"TCOM" => "Komponist",
"TPE2" => "Band",
"TPE4" => "Remix",
"TCON" => "Genre",
"TIT1" => "Kategorie Beschreibung",
"TLEN" => "Laufzeit",
"TBPM" => "Beats per Minute",
"TPOS" => "Teil eines Satzes",
"TRCK" => "Track",
"TPUB" => "Herausgeber",
"TCOP" => "Copyright",
"TPE3" => "Dirigenten",
"TDAT" => "Datum",
"TIME" => "Uhrzeit",
"TDLY" => "Playlist verzoegerung",
"TCMP" => "Teil einer Kompilation",
"TENC" => "Kodiert von",
"TEXT" => "Autor",
"TFLT" => "Datei-Typ",
"TKEY" => "Initial key",
"TLAN" => "Sprache(n)",
"TMED" => "Media-Typ",
"TOAL" => "Original Albumname",
"TOFN" => "Original Dateiname",
"TOLY" => "Original Komponist",
"TOPE" => "Original Interpret",
"TORY" => "Original Erscheinungsjahr",
"TOWN" => "Datei-Eigentuemer",
"TRDA" => "Aufnahmedatum",
"TRSN" => "Internet-Radiosender Name",
"TRSO" => "Internet-Radiosender Eigentuemer",
"TSIZ" => "Groese",
"TSRC" => "ISRC (international standard recording code)",
"TSSE" => "Software und Hardware Einstellungen zur Kodierung",
"TMCL" => "Credits Liste",
"TMOO" => "Stimmung",
"TPRO" => "Produktionshinweise",
"TDEN" => "Kodierungszeitpunkt",
"TDOR" => "Originaldatum der Herausgabe",
"TDRC" => "Aufnahmezeitpunkt",
"TDRL" => "Herausgabezeitpunkt",
"TDTG" => "Zeitpunkt der Tagerstellung",
"TSOA" => "Sortierreihenfolge der Albumnamen",
"TSOP" => "Sortierreihenfolge der Kuenstler",
"TSOT" => "Sortierreihenfolge der Titel",
"TXXX" => "User Text",
"TYER" => "Jahr",
"TDRC" => "Jahr",
"TIPL" => "Beteiligte Personen",
"IPLS" => "Beteiligte Personen",
"WCOM" => "Kommerzielle Informationen",
"WCOP" => "Copyright",
"WOAF" => "Homepage der Audiodateien",
"WOAR" => "Homepage des Interpreten",
"WOAS" => "Homepage der Audioquellen",
"WORS" => "Homepage des Internet-Radiosenders",
"WPAY" => "Zahlungshinweise",
"WPUB" => "Homepage des Herausgebers",
"WXXX" => "User Link",
"USER" => "Nutzungsbedingungen",
"PCNT" => "Playcounter",
"COMM" => "Kommentar",
"APIC" => "Bild"
);
public static $pictureType = array(
"Other",
"32x32 pixels 'file icon' (PNG only)",
"Other file icon",
"Cover (front)",
"Cover (back)",
"Leaflet page",
"Media (e.g. lable side of CD)",
"Lead artist/lead performer/soloist",
"Artist/performer",
"Conductor",
"Band/Orchestra",
"Composer",
"Lyricist/text writer",
"Recording Location",
"During recording",
"During performance",
"Movie/video screen capture",
"A bright coloured fish",
"Illustration",
"Band/artist logotype",
"Publisher/Studio logotype"
);
public static $genreList = 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',
'Alt. Rock', 'Bass', 'Soul', 'Punk', 'Space',
'Meditative', 'Instrumental Pop', 'Instrumental Rock', 'Ethnic', 'Gothic',
'Darkwave', 'Techno-Industrial', 'Electronic', 'Pop-Folk', 'Eurodance',
'Dream', 'Southern Rock', 'Comedy', 'Cult', 'Gangsta Rap',
'Top 40', 'Christian Rap', 'Pop/Funk', 'Jungle', 'Native American',
'Cabaret', 'New Wave', 'Psychedelic', 'Rave', 'Showtunes',
'Trailer', 'Lo-Fi', 'Tribal', 'Acid Punk', 'Acid Jazz',
'Polka', 'Retro', 'Musical', 'Rock & Roll', 'Hard Rock'
);
public function __construct( $file = "" )
{
$this->file = $file;
$this->file = urldecode($this->file);
$this->file = strip_tags($this->file);
$this->file = htmlspecialchars($this->file, ENT_QUOTES);
$this->apicDefault = '';
$this->readFile();
}
// Liest ID3V2 Header und Tags sowie diverse mp3-Infos aus
// *******************************************************
public function readFile()
{
if( $this->file != "" )
{
if( is_file($this->file) )
{
$fileMime = strtolower(strrchr($this->file, '.'));
if( $fileMime == ".mp3" )
{
$this->filesize = filesize($this->file);
$this->fileName = basename($this->file);
$this->filePath = pathinfo($this->file);
$this->fileMtime = filemtime($this->file);
$this->fileAtime = fileatime($this->file);
if( $fp = @fopen($this->file, 'rb') )
{
$id3Data = array();
$id3Data['file'] = array();
$id3Data['file']['size'] = $this->filesize;
$id3Data['file']['name'] = $this->fileName;
$id3Data['file']['path'] = $this->filePath['dirname'];
$id3Data['file']['base'] = $this->filePath['filename'];
$id3Data['file']['mime'] = $this->filePath['extension'];
$id3Data['file']['mtime'] = $this->fileMtime;
$id3Data['file']['atime'] = $this->fileAtime;
// ID3-Header auslesen
// ====================================================================================================================================
$header = fread($fp, 10);
$header = unpack("a3system/c1vmj/c1vmi/c1flags/Nsize", $header);
$mp3HeaderStart = 0;
if( $header['system'] != "ID3" )
{
$mp3HeaderStart = 0;
$this->error = "ID3-Tags nicht gefunden.";
$id3Data['error'] = $this->error;
} else
if( $header['vmj'] < 3 )
{
$mp3HeaderStart = 0;
$this->error = "ID3-Tags sind kleiner als Version 3.";
$id3Data['error'] = $this->error;
}
if( $mp3HeaderStart > -1 )
{
$id3Data['id3'] = array();
$id3Data['id3']['header'] = array();
$id3Data['id3']['header']['system'] = $header['system'];
$id3Data['id3']['header']['major'] = $header['vmj'];
$id3Data['id3']['header']['minor'] = $header['vmi'];
$id3Data['id3']['header']['version'] = "V2.".$header['vmj'].".".$header['vmi'];
$id3Data['id3']['header']['flags'] = str_pad(decbin($header['flags']), 8, "0", STR_PAD_LEFT);
$id3Data['id3']['header']['size'] = $this->syncSafeToInt($header['size']);
$mp3HeaderStart = $id3Data['id3']['header']['size'] + 10;
// Extended Header -> überspringen
if( $id3Data['id3']['header']['flags'][1] == 1 )
{
$extHeader = fread($fp, 4);
$extSize = unpack("N", $extHeader);
$extLength = syncSafeToInt($extSize[1]);
$extSkip = fread($fp, $extLength);
$id3Data['id3']['header']['extended'] = 1;
} else
{
$id3Data['id3']['header']['extended'] = 0;
}
// ID3-Tags auslesen
// =================
$tagData = array();
$tagSkip = array();
while( ftell($fp) < $id3Data['id3']['header']['size'] )
{
// Tag-Name 4 Bytes
$tagPosStart = ftell($fp);
$tag = fread($fp, 4);
if( $tag[0] != "\x00" )
{
// Frame-Size 4 Bytes
$sizeInt = fread($fp, 4);
$sizeValue = unpack('N', $sizeInt);
$size = $sizeValue[1];
if( $size > 0 )
{
// Flags 2 Bytes
$flags1 = fread($fp, 1);
$flags2 = fread($fp, 1);
$flags1 = str_pad(decbin($flags1), 8, "0", STR_PAD_LEFT);
$flags2 = str_pad(decbin($flags2), 8, "0", STR_PAD_LEFT);
// Nur zu untersuchende Tags beachten
// ==================================
if( array_key_exists($tag, self::$tagUse) )
{
// Content auslesen
// ================
if( $tag[0] == "TXXX" )
{
// [User-TEXT]
// -----------
$enByte = fread($fp, 1);
$enData = unpack('c', $enByte);
$encode = $enData[1];
$charset = $this->getCharsetFromByte($encode);
$subSize = 1;
// Beschreibung
$desc = "";
$pos = ftell($fp);
while( $pos++ )
{
$subSize++;
$nextByte = fread($fp, 1);
if( $nextByte != "\x00" )
{
$desc .= $nextByte;
} else
{
break;
}
}
$desc = ( $this->convertCharset($charset, $desc) != "" ) ? $this->convertCharset($charset, $desc) : $desc;
// Daten
$data = @fread($fp, $size-$subSize);
$data = ( $this->convertCharset($charset, $data) != "" ) ? $this->convertCharset($charset, $data) : $data;
$subArray = array();
$subArray['desc'] = $desc;
$subArray['data'] = $data;
$content = $subArray;
} else
if( $tag[0] == "T" || $tag == "IPLS" )
{
// [Text]
// ------
$enByte = fread($fp, 1);
$enData = unpack('c', $enByte);
$encode = $enData[1];
$charset = $this->getCharsetFromByte($encode);
if( $size > 1 )
{
$content = fread($fp, $size-1);
$content = $this->convertCharset($charset, $content);
// "Jahr" in V2.4.0 als UTC-Timestamp
if( $tag == "TDRC" )
{
$content = substr($content, 0, 4);
}
} else
{
$content = "";
}
} else
if( $tag == "APIC" )
{
// [Bild]
// ------
$enByte = fread($fp, 1);
$enData = unpack('c', $enByte);
$encode = $enData[1];
$charset = $this->getCharsetFromByte($encode);
$subSize = 1;
// Mime
$imgMime = "";
$pos = ftell($fp);
while( $pos++ )
{
$subSize++;
$nextByte = fread($fp, 1);
if( $nextByte != "\x00" )
{
$imgMime .= $nextByte;
} else
{
break;
}
}
// Typ
$subSize++;
$typeByte = fread($fp, 1);
$typeValue = unpack('c', $typeByte);
$typeIndex = $typeValue[1];
// Beschreibung
$imgDesc = "";
$pos = ftell($fp);
while( $pos++ )
{
$subSize++;
$nextByte = fread($fp, 1);
if( $nextByte != "\x00" )
{
$imgDesc .= $nextByte;
} else
{
break;
}
}
$imgDesc = $this->convertCharset($charset, $imgDesc);
// Daten
$data = @fread($fp, $size-$subSize);
$data = base64_encode($data);
$subArray = array();
$subArray['mime'] = $imgMime;
$subArray['type'] = self::$pictureType[$typeIndex];
$subArray['desc'] = $imgDesc;
$subArray['data'] = $data;
$content = $subArray;
} else
if( $tag == "COMM" )
{
// [Kommentar]
// -----------
$enByte = fread($fp, 1);
$enData = unpack('c', $enByte);
$encode = $enData[1];
$charset = $this->getCharsetFromByte($encode);
$subSize = 4;
$lang = fread($fp, 3);
// Beschreibung
$desc = "";
$pos = ftell($fp);
while( $pos++ )
{
$subSize++;
$nextByte = fread($fp, 1);
if( $nextByte != "\x00" )
{
$desc .= $nextByte;
} else
{
break;
}
}
$desc = ( $this->convertCharset($charset, $desc) != "" ) ? $this->convertCharset($charset, $desc) : $desc;
// Daten
$data = @fread($fp, $size-$subSize);
$data = ( $this->convertCharset($charset, $data) != "" ) ? $this->convertCharset($charset, $data) : $data;
$subArray = array();
$subArray['lang'] = $lang;
$subArray['desc'] = $desc;
$subArray['data'] = $data;
$content = $subArray;
} else
if( $tag == "PCNT" )
{
// [Playcounter]
// -------------
$data = @fread($fp, $size);
$content = hexdec($data);
} else
if( $tag == "USER" )
{
// [Terms of Use]
// --------------
$enByte = fread($fp, 1);
$enData = unpack('c', $enByte);
$encode = $enData[1];
$charset = $this->getCharsetFromByte($encode);
$subSize = 4;
$lang = fread($fp, 3);
// Daten
$data = @fread($fp, $size-$subSize);
$data = ( $this->convertCharset($charset, $data) != "" ) ? $this->convertCharset($charset, $data) : $data;
$subArray = array();
$subArray['data'] = $data;
$content = $subArray;
} else
if( $tag == "WXXX" )
{
// [User-URL]
// ----------
$enByte = fread($fp, 1);
$enData = unpack('c', $enByte);
$encode = $enData[1];
$charset = $this->getCharsetFromByte($encode);
$subSize = 1;
// Beschreibung
$desc = "";
$pos = ftell($fp);
while( $pos++ )
{
$subSize++;
$nextByte = fread($fp, 1);
if( $nextByte != "\x00" )
{
$desc .= $nextByte;
} else
{
break;
}
}
$desc = ( $this->convertCharset($charset, $desc) != "" ) ? $this->convertCharset($charset, $desc) : $desc;
// Daten
$data = @fread($fp, $size-$subSize);
$data = ( $this->convertCharset($charset, $data) != "" ) ? $this->convertCharset($charset, $data) : $data;
$subArray = array();
$subArray['desc'] = $desc;
$subArray['data'] = $data;
$content = $subArray;
} else
if( $tag[0] == "W" )
{
// [URL]
// -----
$content = fread($fp, $size);
} else
{
// [UNBEKANNT]
// -----------
$skip = fread($fp, $size);
$encode = 0;
$charset = "";
$content = "";
}
// Werte ins Daten-Array übertragen
// ================================
$tagData[$tag] = array();
$tagData[$tag]['name'] = self::$tagUse[$tag];
$tagData[$tag]['size'] = $size;
$tagData[$tag]['flags_1'] = $flags1;
$tagData[$tag]['flags_2'] = $flags2;
$tagData[$tag]['pos'] = $tagPosStart;
$tagData[$tag]['encode'] = $encode;
$tagData[$tag]['charset'] = $charset;
$tagData[$tag]['content'] = $content; // Bei APIC & COMM weiteres Array !
} else
{
// Sprung zum nächsten Tag
// =======================
$skip = fread($fp, $size+0);
$tagSkip[$tag]['name'] = $tag;
$tagSkip[$tag]['size'] = $size;
$tagSkip[$tag]['flags_1'] = $flags1;
$tagSkip[$tag]['flags_2'] = $flags2;
$tagSkip[$tag]['content'] = $skip;
}
$this->tagsLength += 10 + $size;
$this->tagsNr++;
} else
{
break;
}
} else
{
break;
}
}
$id3Data['id3']['header']['counter'] = $this->tagsNr;
$id3Data['id3']['header']['padding'] = $id3Data['id3']['header']['size'] - $this->tagsLength;
$id3Data['id3']['tags'] = $tagData;
$id3Data['id3']['skipped'] = $tagSkip;
}
// mp3-Header für Bitrate, Abtastrate und Laufzeit auslesen
// ====================================================================================================================================
if( $mp3HeaderStart > -1 )
{
// Bitraten- und Samplingtabellen
// ------------------------------
$mp3ArrId = [0 => "MPEG 2.5", 1 => "-", 2 => "MPEG 2", 3 => "MPEG 1"];
$mp3ArrLayer = [0 => "-", 1 => "Layer 3", 2 => "Layer 2", 3 => "Layer 1"];
$mp3ArrBits = [1,2];
$mp3ArrBits[1] = [1,2,3];
$mp3ArrBits[2] = [1,2];
$mp3ArrBits[1][1] = [0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448];
$mp3ArrBits[1][2] = [0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384];
$mp3ArrBits[1][3] = [0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320];
$mp3ArrBits[2][1] = [0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256];
$mp3ArrBits[2][2] = [0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160];
$mp3ArrSamples = [1,2,3];
$mp3ArrSamples[1] = [44100, 48000, 32000];
$mp3ArrSamples[2] = [22050, 24000, 16000];
$mp3ArrSamples[3] = [11025, 12000, 8000];
// FilePointer auf Start mp3-Header
// --------------------------------
fseek($fp, $mp3HeaderStart, SEEK_SET);
$mp3FullByte = unpack("CData", fread($fp, 1));
if( $mp3FullByte['Data'] == 255 )
{
$mp3HeaderByte2 = unpack("CData", fread($fp, 1));
$mp3HeaderByte2 = decbin($mp3HeaderByte2['Data']);
$mp3HeaderByte3 = unpack("CData", fread($fp, 1));
$mp3HeaderByte3 = decbin($mp3HeaderByte3['Data']);
$mp3HeaderByte4 = unpack("CData", fread($fp, 1));
$mp3HeaderByte4 = decbin($mp3HeaderByte4['Data']);
if( substr($mp3HeaderByte2, 0, 3) == "111" )
{
// Ersten mp3-Header gefunden
// --------------------------
$mp3Data = array();
$mp3ID = bindec(substr($mp3HeaderByte2, 3, 2));
$mp3Layer = bindec(substr($mp3HeaderByte2, 5, 2));
$mp3BitRate = bindec(substr($mp3HeaderByte3, 0, 4));
$mp3SampleRate = bindec(substr($mp3HeaderByte3, 4, 2));
$mp3Kanaele = bindec(substr($mp3HeaderByte4, 0, 2));
$mp3Data['id'] = $mp3ArrId[$mp3ID];
$mp3Data['layer'] = $mp3ArrLayer[$mp3Layer];
$mp3Data['kanaele'] = ( $mp3Kanaele < 2 ) ? 2 : 1;
$mp3Data['bittype'] = "CBR";
$samplesPerFrame = $this->getSamplesPerFrame($mp3ID, $mp3Layer);
// Bitrate
if( $mp3ID == 3 )
{
if( $mp3Layer == 1 )
{
$mp3Data['bitrate'] = $mp3ArrBits[1][3][$mp3BitRate];
} else
if( $mp3Layer == 2 )
{
$mp3Data['bitrate'] = $mp3ArrBits[1][2][$mp3BitRate];
} else
if( $mp3Layer == 3 )
{
$mp3Data['bitrate'] = $mp3ArrBits[1][1][$mp3BitRate];
} else
{
$mp3Data['bitrate'] = "-";
}
} else
if( $mp3ID == 0 || $mp3ID == 2 )
{
if( $mp3Layer == 3 )
{
$mp3Data['bitrate'] = $mp3ArrBits[2][1][$mp3BitRate];
} else
{
$mp3Data['bitrate'] = $mp3ArrBits[2][2][$mp3BitRate];
}
} else
{
$mp3Data['bitrate'] = "-";
}
// Samplerate
if( $mp3ID == 3 )
{
$mp3Data['frequenz'] = $mp3ArrSamples[1][$mp3SampleRate];
} else
if( $mp3ID == 2 )
{
$mp3Data['frequenz'] = $mp3ArrSamples[2][$mp3SampleRate];
} else
if( $mp3ID == 0 )
{
$mp3Data['frequenz'] = $mp3ArrSamples[3][$mp3SampleRate];
} else
{
$mp3Data['frequenz'] = "-";
}
// Laufzeit bei CBR ermitteln (dazu die Dateigröße berechnen)
// ==========================================================
$endFrameHeader1 = ftell($fp);
$CBRfilesize = $this->filesize - $mp3HeaderStart;
// ID3V1-Tag suchen
// ----------------
fseek($fp, $this->filesize - 128, SEEK_SET);
$id3V1Tag = fread($fp, 3);
if( $id3V1Tag == "TAG" )
{
$id3v1Array = array();
$id3v1Array['titel'] = trim(fread($fp, 30));
$id3v1Array['interpret'] = trim(fread($fp, 30));
$id3v1Array['album'] = trim(fread($fp, 30));
$id3v1Array['jahr'] = trim(fread($fp, 4));
$id3v1Array['kommentar'] = trim(fread($fp, 28));
$id3v1CommByte1 = fread($fp, 1);
$id3v1CommByte2 = fread($fp, 1);
if( $id3v1CommByte1 == "\x00" )
{
// ID3V1.1
$id3v1Array['track'] = unpack("CData", $id3v1CommByte2);
$id3v1Array['track'] = $id3v1Array['track']['Data'];
} else
{
// ID3V1.0
$id3v1Array['track'] = "?";
$id3v1Array['kommentar'] .= $id3v1CommByte1 . $id3v1CommByte2;
}
$id3v1Array['genre_nr'] = unpack("CData", fread($fp, 1));
$id3v1Array['genre_nr'] = $id3v1Array['genre_nr']['Data'];
// $id3v1Array['genre_nr'] = ( $id3v1Array['genre_nr'] < sizeof(self::$genreList) ) ? $id3v1Array['genre_nr'] : 12;
$id3v1Array['genre_text'] = ( $id3v1Array['genre_nr'] < sizeof(self::$genreList) ) ? self::$genreList[$id3v1Array['genre_nr']] : "?";
$id3Data['id3v1'] = $id3v1Array;
$CBRfilesize -= 128;
$APEsearchPos = $this->filesize - 32 - 128;
} else
{
$id3Data['id3v1'] = "-";
$APEsearchPos = $this->filesize - 32;
}
// APE-Tags suchen
// ---------------
fseek($fp, $APEsearchPos, SEEK_SET);
$APETag = fread($fp, 8);
if( $APETag == "APETAGEX" )
{
fseek($fp, 4, SEEK_CUR);
$APESize = unpack("NSize", fread($fp, 4));
$CBRfilesize -= $APESize['Size'];
$id3Data['APE'] = "Ja (Offset: ".$APEsearchPos.", Size: ".$APESize['Size']." Bytes)";
} else
{
$id3Data['APE'] = "-";
$LyricssearchPos = $APEsearchPos + 23;
}
// Lyrics-TAG suchen
// -----------------
fseek($fp, $LyricssearchPos, SEEK_SET);
$LyricsTag = fread($fp, 9);
if( $LyricsTag == "LYRICS200" )
{
fseek($fp, $LyricssearchPos - 6, SEEK_SET);
$LyricsSize = "00".fread($fp, 6);
$LyricsLength = unpack("NSize", $LyricsSize);
$CBRfilesize -= ( $LyricsLength['Size'] + 15 );
$id3Data['Lyrics'] = "Ja (Offset: ".$LyricssearchPos.", Size: ".$LyricsLength['Size']." Bytes)";
} else
{
$id3Data['Lyrics'] = "-";
}
$mp3Data['duration'] = floor( ( $CBRfilesize * 8 ) / ( $mp3Data['bitrate'] * 1000 ) );
// FilePointer zurück nach dem ersten Frame-Header
// -----------------------------------------------
fseek($fp, $endFrameHeader1, SEEK_SET);
}
// Xing Header suchen => VBR
// =========================
$mp3Data['xing'] = "-";
$XingSearchStart = ftell($fp);
$XingSearchContent = fread($fp, 100);
$posNr = 0;
$posNr = strpos($XingSearchContent, 'Xing');
if( $posNr === false )
{
$posNr = strpos($XingSearchContent, 'Info');
}
if( $posNr != 0 )
{
fseek($fp, $XingSearchStart + $posNr, SEEK_SET);
$XingByte = fread($fp, 4);
if( $XingByte == "Xing" )
{
// Xing Header gefunden
// --------------------
fseek($fp, 3, SEEK_CUR);
$XingFlagsByte = unpack("CData", fread($fp, 1));
$XingFlagsBits = str_pad(decbin($XingFlagsByte['Data']), 8, "0", STR_PAD_LEFT);
$XingFlagFrames = $XingFlagsBits[7];
$XingFlagBytes = $XingFlagsBits[6];
$XingFlagTOC = $XingFlagsBits[5];
$XingFlagQality = $XingFlagsBits[4];
if( $XingFlagFrames == 1 && $XingFlagBytes == 1 )
{
$XingGetFrames = unpack("NData", fread($fp, 4));
$XingGetBytes = unpack("NData", fread($fp, 4));
$duration = floor( $XingGetFrames['Data'] * $samplesPerFrame / $mp3Data['frequenz'] );
$kbps = round( ( $XingGetBytes['Data'] * 8 ) / ( 1000 * $duration ), 0 );
// CBR aus Frame 1 überschreiben
// =============================
$mp3Data['bittype'] = "VBR";
$mp3Data['bitrate'] = $kbps;
$mp3Data['duration'] = $duration;
}
$mp3Data['xing'] = "Flags = ".$XingFlagsByte['Data'].", Frames = ".$XingGetFrames['Data'].", Bytes = ".$XingGetBytes['Data'];
}
}
// Daten aus mp3-Header an id3-Array übergeben
// ===========================================
$id3Data['mp3'] = $mp3Data;
}
} else
{
// Alte ID3-Tags
// Startposition des mp3-Headers unbekannt
}
$this->nID3data = $id3Data;
fclose($fp);
} else
{
$this->error = "Datei nicht lesbar.";
}
} else
{
$this->error = "Datei hat kein mp3-Format.";
}
} else
{
$this->error = "Datei nicht gefunden.";
}
} else
{
$this->error = "Dateiname leer oder nicht lesbar.";