PHP Classes
elePHPant
Icontem

File: includes/getid3/write.id3v1.php

Recommend this page to a friend!
Stumble It! Stumble It! Bookmark in del.icio.us Bookmark in del.icio.us
  Classes of Karl Holz  >  WaldScan  >  includes/getid3/write.id3v1.php  >  Download  
File: includes/getid3/write.id3v1.php
Role: Auxiliary script
Content type: text/plain
Description: getID3 dependency
Class: WaldScan
Scan directories for files with certain extensions
Author: By
Last change:
Date: 2 years ago
Size: 5,524 bytes
 

Contents

Class file image Download
<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at http://getid3.sourceforge.net //
// or http://www.getid3.org //
/////////////////////////////////////////////////////////////////
// See readme.txt for more details //
/////////////////////////////////////////////////////////////////
// //
// write.id3v1.php //
// module for writing ID3v1 tags //
// dependencies: module.tag.id3v1.php //
// ///
/////////////////////////////////////////////////////////////////

getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v1.php', __FILE__, true);

class
getid3_write_id3v1
{
    var
$filename;
    var
$filesize;
    var
$tag_data;
    var
$warnings = array(); // any non-critical errors will be stored here
   
var $errors = array(); // any critical errors will be stored here

   
function getid3_write_id3v1() {
        return
true;
    }

    function
WriteID3v1() {
       
// File MUST be writeable - CHMOD(646) at least
       
if (!empty($this->filename) && is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename)) {
           
$this->setRealFileSize();
            if ((
$this->filesize <= 0) || !getid3_lib::intValueSupported($this->filesize)) {
               
$this->errors[] = 'Unable to WriteID3v1('.$this->filename.') because filesize ('.$this->filesize.') is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
                return
false;
            }
            if (
$fp_source = fopen($this->filename, 'r+b')) {
               
fseek($fp_source, -128, SEEK_END);
                if (
fread($fp_source, 3) == 'TAG') {
                   
fseek($fp_source, -128, SEEK_END); // overwrite existing ID3v1 tag
               
} else {
                   
fseek($fp_source, 0, SEEK_END); // append new ID3v1 tag
               
}
               
$this->tag_data['track'] = (isset($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'] : '')));

               
$new_id3v1_tag_data = getid3_id3v1::GenerateID3v1Tag(
                                                        (isset(
$this->tag_data['title'] ) ? $this->tag_data['title'] : ''),
                                                        (isset(
$this->tag_data['artist'] ) ? $this->tag_data['artist'] : ''),
                                                        (isset(
$this->tag_data['album'] ) ? $this->tag_data['album'] : ''),
                                                        (isset(
$this->tag_data['year'] ) ? $this->tag_data['year'] : ''),
                                                        (isset(
$this->tag_data['genreid']) ? $this->tag_data['genreid'] : ''),
                                                        (isset(
$this->tag_data['comment']) ? $this->tag_data['comment'] : ''),
                                                        (isset(
$this->tag_data['track'] ) ? $this->tag_data['track'] : ''));
               
fwrite($fp_source, $new_id3v1_tag_data, 128);
               
fclose($fp_source);
                return
true;

            } else {
               
$this->errors[] = 'Could not fopen('.$this->filename.', "r+b")';
                return
false;
            }
        }
       
$this->errors[] = 'File is not writeable: '.$this->filename;
        return
false;
    }

    function
FixID3v1Padding() {
       
// ID3v1 data is supposed to be padded with NULL characters, but some taggers incorrectly use spaces
        // This function rewrites the ID3v1 tag with correct padding

        // Initialize getID3 engine
       
$getID3 = new getID3;
       
$getID3->option_tag_id3v2 = false;
       
$getID3->option_tag_apetag = false;
       
$getID3->option_tags_html = false;
       
$getID3->option_extra_info = false;
       
$getID3->option_tag_id3v1 = true;
       
$ThisFileInfo = $getID3->analyze($this->filename);
        if (isset(
$ThisFileInfo['tags']['id3v1'])) {
            foreach (
$ThisFileInfo['tags']['id3v1'] as $key => $value) {
               
$id3v1data[$key] = implode(',', $value);
            }
           
$this->tag_data = $id3v1data;
            return
$this->WriteID3v1();
        }
        return
false;
    }

    function
RemoveID3v1() {
       
// File MUST be writeable - CHMOD(646) at least
       
if (!empty($this->filename) && is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename)) {
           
$this->setRealFileSize();
            if ((
$this->filesize <= 0) || !getid3_lib::intValueSupported($this->filesize)) {
               
$this->errors[] = 'Unable to RemoveID3v1('.$this->filename.') because filesize ('.$this->filesize.') is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
                return
false;
            }
            if (
$fp_source = fopen($this->filename, 'r+b')) {

               
fseek($fp_source, -128, SEEK_END);
                if (
fread($fp_source, 3) == 'TAG') {
                   
ftruncate($fp_source, $this->filesize - 128);
                } else {
                   
// no ID3v1 tag to begin with - do nothing
               
}
               
fclose($fp_source);
                return
true;

            } else {
               
$this->errors[] = 'Could not fopen('.$this->filename.', "r+b")';
            }
        } else {
           
$this->errors[] = $this->filename.' is not writeable';
        }
        return
false;
    }

    function
setRealFileSize() {
        if (
PHP_INT_MAX > 2147483647) {
           
$this->filesize = filesize($this->filename);
            return
true;
        }
       
// 32-bit PHP will not return correct values for filesize() if file is >=2GB
        // but getID3->analyze() has workarounds to get actual filesize
       
$getID3 = new getID3;
       
$getID3->option_tag_id3v1 = false;
       
$getID3->option_tag_id3v2 = false;
       
$getID3->option_tag_apetag = false;
       
$getID3->option_tags_html = false;
       
$getID3->option_extra_info = false;
       
$ThisFileInfo = $getID3->analyze($this->filename);
       
$this->filesize = $ThisFileInfo['filesize'];
        return
true;
    }

}

?>