224 lines
7.4 KiB
PHP
224 lines
7.4 KiB
PHP
<?php
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/////////////////////////////////////////////////////////////////
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/// getID3() by James Heinrich <info@getid3.org> //
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// available at http://getid3.sourceforge.net //
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// or http://www.getid3.org //
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/////////////////////////////////////////////////////////////////
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// See readme.txt for more details //
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/////////////////////////////////////////////////////////////////
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// //
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// write.apetag.php //
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// module for writing APE tags //
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// dependencies: module.tag.apetag.php //
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// ///
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/////////////////////////////////////////////////////////////////
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getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.apetag.php', __FILE__, true);
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class getid3_write_apetag
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{
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public $filename;
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public $tag_data;
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public $always_preserve_replaygain = true; // ReplayGain / MP3gain tags will be copied from old tag even if not passed in data
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public $warnings = array(); // any non-critical errors will be stored here
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public $errors = array(); // any critical errors will be stored here
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public function getid3_write_apetag() {
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return true;
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}
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public function WriteAPEtag() {
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// NOTE: All data passed to this function must be UTF-8 format
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$getID3 = new getID3;
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$ThisFileInfo = $getID3->analyze($this->filename);
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if (isset($ThisFileInfo['ape']['tag_offset_start']) && isset($ThisFileInfo['lyrics3']['tag_offset_end'])) {
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if ($ThisFileInfo['ape']['tag_offset_start'] >= $ThisFileInfo['lyrics3']['tag_offset_end']) {
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// Current APE tag between Lyrics3 and ID3v1/EOF
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// This break Lyrics3 functionality
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if (!$this->DeleteAPEtag()) {
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return false;
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}
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$ThisFileInfo = $getID3->analyze($this->filename);
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}
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}
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if ($this->always_preserve_replaygain) {
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$ReplayGainTagsToPreserve = array('mp3gain_minmax', 'mp3gain_album_minmax', 'mp3gain_undo', 'replaygain_track_peak', 'replaygain_track_gain', 'replaygain_album_peak', 'replaygain_album_gain');
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foreach ($ReplayGainTagsToPreserve as $rg_key) {
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if (isset($ThisFileInfo['ape']['items'][strtolower($rg_key)]['data'][0]) && !isset($this->tag_data[strtoupper($rg_key)][0])) {
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$this->tag_data[strtoupper($rg_key)][0] = $ThisFileInfo['ape']['items'][strtolower($rg_key)]['data'][0];
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}
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}
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}
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if ($APEtag = $this->GenerateAPEtag()) {
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if (is_writable($this->filename) && is_file($this->filename) && ($fp = fopen($this->filename, 'a+b'))) {
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$oldignoreuserabort = ignore_user_abort(true);
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flock($fp, LOCK_EX);
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$PostAPEdataOffset = $ThisFileInfo['avdataend'];
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if (isset($ThisFileInfo['ape']['tag_offset_end'])) {
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$PostAPEdataOffset = max($PostAPEdataOffset, $ThisFileInfo['ape']['tag_offset_end']);
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}
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if (isset($ThisFileInfo['lyrics3']['tag_offset_start'])) {
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$PostAPEdataOffset = max($PostAPEdataOffset, $ThisFileInfo['lyrics3']['tag_offset_start']);
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}
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fseek($fp, $PostAPEdataOffset, SEEK_SET);
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$PostAPEdata = '';
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if ($ThisFileInfo['filesize'] > $PostAPEdataOffset) {
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$PostAPEdata = fread($fp, $ThisFileInfo['filesize'] - $PostAPEdataOffset);
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}
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fseek($fp, $PostAPEdataOffset, SEEK_SET);
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if (isset($ThisFileInfo['ape']['tag_offset_start'])) {
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fseek($fp, $ThisFileInfo['ape']['tag_offset_start'], SEEK_SET);
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}
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ftruncate($fp, ftell($fp));
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fwrite($fp, $APEtag, strlen($APEtag));
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if (!empty($PostAPEdata)) {
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fwrite($fp, $PostAPEdata, strlen($PostAPEdata));
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}
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flock($fp, LOCK_UN);
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fclose($fp);
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ignore_user_abort($oldignoreuserabort);
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return true;
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}
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}
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return false;
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}
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public function DeleteAPEtag() {
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$getID3 = new getID3;
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$ThisFileInfo = $getID3->analyze($this->filename);
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if (isset($ThisFileInfo['ape']['tag_offset_start']) && isset($ThisFileInfo['ape']['tag_offset_end'])) {
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if (is_writable($this->filename) && is_file($this->filename) && ($fp = fopen($this->filename, 'a+b'))) {
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flock($fp, LOCK_EX);
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$oldignoreuserabort = ignore_user_abort(true);
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fseek($fp, $ThisFileInfo['ape']['tag_offset_end'], SEEK_SET);
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$DataAfterAPE = '';
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if ($ThisFileInfo['filesize'] > $ThisFileInfo['ape']['tag_offset_end']) {
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$DataAfterAPE = fread($fp, $ThisFileInfo['filesize'] - $ThisFileInfo['ape']['tag_offset_end']);
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}
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ftruncate($fp, $ThisFileInfo['ape']['tag_offset_start']);
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fseek($fp, $ThisFileInfo['ape']['tag_offset_start'], SEEK_SET);
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if (!empty($DataAfterAPE)) {
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fwrite($fp, $DataAfterAPE, strlen($DataAfterAPE));
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}
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flock($fp, LOCK_UN);
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fclose($fp);
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ignore_user_abort($oldignoreuserabort);
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return true;
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}
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return false;
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}
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return true;
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}
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public function GenerateAPEtag() {
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// NOTE: All data passed to this function must be UTF-8 format
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$items = array();
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if (!is_array($this->tag_data)) {
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return false;
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}
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foreach ($this->tag_data as $key => $arrayofvalues) {
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if (!is_array($arrayofvalues)) {
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return false;
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}
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$valuestring = '';
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foreach ($arrayofvalues as $value) {
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$valuestring .= str_replace("\x00", '', $value)."\x00";
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}
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$valuestring = rtrim($valuestring, "\x00");
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// Length of the assigned value in bytes
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$tagitem = getid3_lib::LittleEndian2String(strlen($valuestring), 4);
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//$tagitem .= $this->GenerateAPEtagFlags(true, true, false, 0, false);
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$tagitem .= "\x00\x00\x00\x00";
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$tagitem .= $this->CleanAPEtagItemKey($key)."\x00";
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$tagitem .= $valuestring;
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$items[] = $tagitem;
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}
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return $this->GenerateAPEtagHeaderFooter($items, true).implode('', $items).$this->GenerateAPEtagHeaderFooter($items, false);
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}
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public function GenerateAPEtagHeaderFooter(&$items, $isheader=false) {
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$tagdatalength = 0;
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foreach ($items as $itemdata) {
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$tagdatalength += strlen($itemdata);
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}
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$APEheader = 'APETAGEX';
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$APEheader .= getid3_lib::LittleEndian2String(2000, 4);
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$APEheader .= getid3_lib::LittleEndian2String(32 + $tagdatalength, 4);
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$APEheader .= getid3_lib::LittleEndian2String(count($items), 4);
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$APEheader .= $this->GenerateAPEtagFlags(true, true, $isheader, 0, false);
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$APEheader .= str_repeat("\x00", 8);
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return $APEheader;
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}
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public function GenerateAPEtagFlags($header=true, $footer=true, $isheader=false, $encodingid=0, $readonly=false) {
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$APEtagFlags = array_fill(0, 4, 0);
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if ($header) {
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$APEtagFlags[0] |= 0x80; // Tag contains a header
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}
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if (!$footer) {
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$APEtagFlags[0] |= 0x40; // Tag contains no footer
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}
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if ($isheader) {
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$APEtagFlags[0] |= 0x20; // This is the header, not the footer
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}
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// 0: Item contains text information coded in UTF-8
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// 1: Item contains binary information <20>)
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// 2: Item is a locator of external stored information <20><>)
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// 3: reserved
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$APEtagFlags[3] |= ($encodingid << 1);
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if ($readonly) {
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$APEtagFlags[3] |= 0x01; // Tag or Item is Read Only
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}
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return chr($APEtagFlags[3]).chr($APEtagFlags[2]).chr($APEtagFlags[1]).chr($APEtagFlags[0]);
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}
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public function CleanAPEtagItemKey($itemkey) {
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$itemkey = preg_replace("#[^\x20-\x7E]#i", '', $itemkey);
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// http://www.personal.uni-jena.de/~pfk/mpp/sv8/apekey.html
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switch (strtoupper($itemkey)) {
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case 'EAN/UPC':
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case 'ISBN':
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case 'LC':
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case 'ISRC':
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$itemkey = strtoupper($itemkey);
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break;
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default:
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$itemkey = ucwords($itemkey);
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break;
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}
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return $itemkey;
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}
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}
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