119 lines
4.0 KiB
PHP
119 lines
4.0 KiB
PHP
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<?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.id3v1.php //
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// module for writing ID3v1 tags //
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// dependencies: module.tag.id3v1.php //
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// ///
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/////////////////////////////////////////////////////////////////
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getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v1.php', __FILE__, true);
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class getid3_write_id3v1
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{
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var $filename;
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var $tag_data;
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var $warnings = array(); // any non-critical errors will be stored here
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var $errors = array(); // any critical errors will be stored here
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function getid3_write_id3v1() {
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return true;
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}
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function WriteID3v1() {
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if ((filesize($this->filename) >= (pow(2, 31) - 128)) || (filesize($this->filename) < 0)) {
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$this->errors[] = 'Unable to write ID3v1 because file is larger than 2GB';
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return false;
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}
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// File MUST be writeable - CHMOD(646) at least
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if (is_writeable($this->filename)) {
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if ($fp_source = @fopen($this->filename, 'r+b')) {
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fseek($fp_source, -128, SEEK_END);
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if (fread($fp_source, 3) == 'TAG') {
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fseek($fp_source, -128, SEEK_END); // overwrite existing ID3v1 tag
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} else {
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fseek($fp_source, 0, SEEK_END); // append new ID3v1 tag
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}
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$this->tag_data['track'] = (isset($this->tag_data['track']) ? $this->tag_data['track'] : (isset($this->tag_data['track_number']) ? $this->tag_data['track_number'] : (isset($this->tag_data['tracknumber']) ? $this->tag_data['tracknumber'] : '')));
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$new_id3v1_tag_data = getid3_id3v1::GenerateID3v1Tag(
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@$this->tag_data['title'],
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@$this->tag_data['artist'],
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@$this->tag_data['album'],
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@$this->tag_data['year'],
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@$this->tag_data['genreid'],
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@$this->tag_data['comment'],
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@$this->tag_data['track']);
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fwrite($fp_source, $new_id3v1_tag_data, 128);
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fclose($fp_source);
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return true;
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} else {
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$this->errors[] = 'Could not open '.$this->filename.' mode "r+b"';
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return false;
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}
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}
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$this->errors[] = 'File is not writeable: '.$this->filename;
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return false;
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}
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function FixID3v1Padding() {
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// ID3v1 data is supposed to be padded with NULL characters, but some taggers incorrectly use spaces
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// This function rewrites the ID3v1 tag with correct padding
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// Initialize getID3 engine
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$getID3 = new getID3;
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$ThisFileInfo = $getID3->analyze($this->filename);
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if ($ThisFileInfo['filesize'] >= (pow(2, 31) - 128)) {
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// cannot write tags on files > 2GB
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return false;
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}
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if (isset($ThisFileInfo['tags']['id3v1'])) {
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foreach ($ThisFileInfo['tags']['id3v1'] as $key => $value) {
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$id3v1data[$key] = implode(',', $value);
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}
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$this->tag_data = $id3v1data;
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return $this->WriteID3v1();
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}
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return false;
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}
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function RemoveID3v1() {
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if ($ThisFileInfo['filesize'] >= pow(2, 31)) {
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$this->errors[] = 'Unable to write ID3v1 because file is larger than 2GB';
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return false;
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}
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// File MUST be writeable - CHMOD(646) at least
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if (is_writeable($this->filename)) {
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if ($fp_source = @fopen($this->filename, 'r+b')) {
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fseek($fp_source, -128, SEEK_END);
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if (fread($fp_source, 3) == 'TAG') {
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ftruncate($fp_source, filesize($this->filename) - 128);
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} else {
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// no ID3v1 tag to begin with - do nothing
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}
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fclose($fp_source);
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return true;
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} else {
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$this->errors[] = 'Could not open '.$this->filename.' mode "r+b"';
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}
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} else {
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$this->errors[] = $this->filename.' is not writeable';
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}
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return false;
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}
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}
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?>
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