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<?php |
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// +----------------------------------------------------------------------+ |
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// | PHP version 5 | |
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// +----------------------------------------------------------------------+ |
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// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | |
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// +----------------------------------------------------------------------+ |
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// | This source file is subject to version 2 of the GPL license, | |
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// | that is bundled with this package in the file license.txt and is | |
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// | available through the world-wide-web at the following url: | |
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// | http://www.gnu.org/copyleft/gpl.html | |
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// +----------------------------------------------------------------------+ |
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// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | |
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// +----------------------------------------------------------------------+ |
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// | Authors: James Heinrich <info�getid3*org> | |
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// | Allan Hansen <ah�artemis*dk> | |
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// +----------------------------------------------------------------------+ |
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// | getid3.php | |
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// | Main getID3() file. | |
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// | dependencies: modules. | |
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// +----------------------------------------------------------------------+ |
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// |
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// $Id: getid3.php,v 1.26 2006/12/25 23:44:23 ah Exp $ |
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class getid3 |
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{ |
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//// Settings Section - do NOT modify this file - change setting after newing getid3! |
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// Encoding |
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public $encoding = 'ISO-8859-1'; // CASE SENSITIVE! - i.e. (must be supported by iconv() - see http://www.gnu.org/software/libiconv/). Examples: ISO-8859-1 UTF-8 UTF-16 UTF-16BE. |
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public $encoding_id3v1 = 'ISO-8859-1'; // Override SPECIFICATION encoding for broken ID3v1 tags caused by bad tag programs. Examples: 'EUC-CN' for "Chinese MP3s" and 'CP1251' for "Cyrillic". |
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public $encoding_id3v2 = 'ISO-8859-1'; // Override ISO-8859-1 encoding for broken ID3v2 tags caused by BRAINDEAD tag programs that writes system codepage as 'ISO-8859-1' instead of UTF-8. |
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// Tags - disable for speed |
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public $option_tag_id3v1 = true; // Read and process ID3v1 tags. |
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public $option_tag_id3v2 = true; // Read and process ID3v2 tags. |
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public $option_tag_lyrics3 = true; // Read and process Lyrics3 tags. |
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public $option_tag_apetag = true; // Read and process APE tags. |
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// Misc calucations - disable for speed |
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public $option_analyze = true; // Analyze file - disable if you only need to detect file format. |
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public $option_accurate_results = true; // Disable to greatly speed up parsing of some file formats at the cost of accuracy. |
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public $option_tags_process = true; // Copy tags to root key 'tags' and 'comments' and encode to $this->encoding. |
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public $option_tags_images = false; // Scan tags for binary image data - ID3v2 and vorbiscomments only. |
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public $option_extra_info = true; // Calculate/return additional info such as bitrate, channelmode etc. |
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public $option_max_2gb_check = false; // Check whether file is larger than 2 Gb and thus not supported by PHP. |
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// Misc data hashes - slow - require hash module |
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public $option_md5_data = false; // Get MD5 sum of data part - slow. |
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public $option_md5_data_source = false; // Use MD5 of source file if available - only FLAC, MAC, OptimFROG and Wavpack4. |
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public $option_sha1_data = false; // Get SHA1 sum of data part - slow. |
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// Public variables |
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public $filename; // Filename of file being analysed. |
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public $fp; // Filepointer to file being analysed. |
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public $info; // Result array. |
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// Protected variables |
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protected $include_path; // getid3 include path. |
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protected $warnings = []; |
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protected $iconv_present; |
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// Class constants |
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const VERSION = '2.0.0b4'; |
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const FREAD_BUFFER_SIZE = 16384; // Read buffer size in bytes. |
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const ICONV_TEST_STRING = ' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~�������������������������������� �����������������������������������������������������������������������������������������������'; |
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// Constructor - check PHP enviroment and load library. |
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public function __construct() |
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{ |
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// Static varibles - no need to recalc every time we new getid3. |
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static $include_path; |
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static $iconv_present; |
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static $initialized; |
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if ($initialized) { |
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// Import static variables |
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$this->include_path = $include_path; |
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$this->iconv_present = $iconv_present; |
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// Run init checks only on first instance. |
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return; |
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} |
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// Get include_path |
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$this->include_path = $include_path = dirname(__FILE__) . '/'; |
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// Check for presence of iconv() and make sure it works (simpel test only). |
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if (function_exists('iconv') && @iconv('UTF-16LE', 'ISO-8859-1', @iconv('ISO-8859-1', 'UTF-16LE', getid3::ICONV_TEST_STRING)) == getid3::ICONV_TEST_STRING) { |
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$this->iconv_present = $iconv_present = true; |
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} // iconv() not present - load replacement module. |
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else { |
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$this->include_module('lib.iconv_replacement'); |
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$this->iconv_present = $iconv_present = false; |
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} |
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// Require magic_quotes_runtime off |
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if (get_magic_quotes_runtime()) { |
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throw new getid3_exception('magic_quotes_runtime must be disabled before running getID3(). Surround getid3 block by set_magic_quotes_runtime(0) and set_magic_quotes_runtime(1).'); |
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} |
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// Check memory limit. |
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$memory_limit = ini_get('memory_limit'); |
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if (eregi('([0-9]+)M', $memory_limit, $matches)) { |
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// could be stored as "16M" rather than 16777216 for example |
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$memory_limit = $matches[1] * 1048576; |
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} |
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if ($memory_limit <= 0) { |
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// Should not happen. |
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} elseif ($memory_limit <= 4194304) { |
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$this->warning('[SERIOUS] PHP has less than 4 Mb available memory and will very likely run out. Increase memory_limit in php.ini.'); |
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} elseif ($memory_limit <= 12582912) { |
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$this->warning('PHP has less than 12 Mb available memory and might run out if all modules are loaded. Increase memory_limit in php.ini if needed.'); |
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} |
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// Check safe_mode off |
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if ((bool)ini_get('safe_mode')) { |
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$this->warning('Safe mode is on, shorten support disabled, md5data/sha1data for ogg vorbis disabled, ogg vorbis/flac tag writing disabled.'); |
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} |
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$initialized = true; |
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} |
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// Analyze file by name |
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public function Analyze($filename) |
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{ |
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// Init and save values |
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$this->filename = $filename; |
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$this->warnings = []; |
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// Init result array and set parameters |
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$this->info = []; |
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$this->info['GETID3_VERSION'] = getid3::VERSION; |
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// Remote files not supported |
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if (preg_match('/^(ht|f)tp:\/\//', $filename)) { |
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throw new getid3_exception('Remote files are not supported - please copy the file locally first.'); |
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} |
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// Open local file |
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if (!$this->fp = @fopen($filename, 'rb')) { |
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throw new getid3_exception('Could not open file "' . $filename . '"'); |
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} |
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// Set filesize related parameters |
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$this->info['filesize'] = filesize($filename); |
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$this->info['avdataoffset'] = 0; |
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$this->info['avdataend'] = $this->info['filesize']; |
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// Option_max_2gb_check |
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if ($this->option_max_2gb_check) { |
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// PHP doesn't support integers larger than 31-bit (~2GB) |
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// filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize |
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// ftell() returns 0 if seeking to the end is beyond the range of unsigned integer |
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fseek($this->fp, 0, SEEK_END); |
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if (((0 != $this->info['filesize']) && (0 == ftell($this->fp))) |
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|| ($this->info['filesize'] < 0) |
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|| (ftell($this->fp) < 0)) { |
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unset($this->info['filesize']); |
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fclose($this->fp); |
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throw new getid3_exception('File is most likely larger than 2GB and is not supported by PHP.'); |
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} |
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} |
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// ID3v2 detection (NOT parsing) done to make fileformat easier. |
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if (!$this->option_tag_id3v2) { |
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fseek($this->fp, 0, SEEK_SET); |
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$header = fread($this->fp, 10); |
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if ('ID3' == substr($header, 0, 3) && 10 == strlen($header)) { |
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$this->info['id3v2']['header'] = true; |
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$this->info['id3v2']['majorversion'] = ord($header{3}); |
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$this->info['id3v2']['minorversion'] = ord($header{4}); |
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$this->info['avdataoffset'] += getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; // length of ID3v2 tag in 10-byte header doesn't include 10-byte header length |
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} |
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} |
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// Handle tags |
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foreach (['id3v2', 'id3v1', 'apetag', 'lyrics3'] as $tag_name) { |
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$option_tag = 'option_tag_' . $tag_name; |
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if ($this->$option_tag) { |
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$this->include_module('tag.' . $tag_name); |
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try { |
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$tag_class = 'getid3_' . $tag_name; |
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$tag = new $tag_class($this); |
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$tag->Analyze(); |
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} catch (getid3_exception $e) { |
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throw $e; |
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} |
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} |
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} |
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//// Determine file format by magic bytes in file header. |
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// Read 32 kb file data |
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fseek($this->fp, $this->info['avdataoffset'], SEEK_SET); |
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$filedata = fread($this->fp, 32774); |
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// Get huge FileFormatArray |
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$file_format_array = getid3::GetFileFormatArray(); |
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// Identify file format - loop through $format_info and detect with reg expr |
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foreach ($file_format_array as $name => $info) { |
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if (preg_match('/' . $info['pattern'] . '/s', $filedata)) { // The /s switch on preg_match() forces preg_match() NOT to treat newline (0x0A) characters as special chars but do a binary match |
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// Format detected but not supported |
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if (!@$info['module'] || !@$info['group']) { |
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fclose($this->fp); |
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$this->info['fileformat'] = $name; |
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$this->info['mime_type'] = $info['mime_type']; |
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$this->warning('Format only detected. Parsing not available yet.'); |
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$this->info['warning'] = $this->warnings; |
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return $this->info; |
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} |
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$determined_format = $info; // copy $info deleted by foreach() |
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continue; |
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} |
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} |
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// Unable to determine file format |
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if (!@$determined_format) { |
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// Too many mp3 encoders on the market put gabage in front of mpeg files |
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// use assume format on these if format detection failed |
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if (preg_match('/\.mp[123a]$/i', $filename)) { |
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$determined_format = $file_format_array['mp3']; |
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} else { |
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fclose($this->fp); |
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throw new getid3_exception('Unable to determine file format'); |
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} |
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} |
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// Free memory |
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unset($file_format_array); |
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// Check for illegal ID3 tags |
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if (@$determined_format['fail_id3'] && (@$this->info['id3v1'] || @$this->info['id3v2'])) { |
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if ('ERROR' === $determined_format['fail_id3']) { |
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fclose($this->fp); |
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throw new getid3_exception('ID3 tags not allowed on this file type.'); |
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} elseif ('WARNING' === $determined_format['fail_id3']) { |
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@$this->info['id3v1'] and $this->warning('ID3v1 tags not allowed on this file type.'); |
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@$this->info['id3v2'] and $this->warning('ID3v2 tags not allowed on this file type.'); |
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} |
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} |
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// Check for illegal APE tags |
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if (@$determined_format['fail_ape'] && @$this->info['tags']['ape']) { |
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if ('ERROR' === $determined_format['fail_ape']) { |
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fclose($this->fp); |
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throw new getid3_exception('APE tags not allowed on this file type.'); |
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} elseif ('WARNING' === $determined_format['fail_ape']) { |
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$this->warning('APE tags not allowed on this file type.'); |
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} |
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} |
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// Set mime type |
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$this->info['mime_type'] = $determined_format['mime_type']; |
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// Calc module file name |
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$determined_format['include'] = 'module.' . $determined_format['group'] . '.' . $determined_format['module'] . '.php'; |
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// Supported format signature pattern detected, but module deleted. |
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if (!file_exists($this->include_path . $determined_format['include'])) { |
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fclose($this->fp); |
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throw new getid3_exception('Format not supported, module, ' . $determined_format['include'] . ', was removed.'); |
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} |
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// Include module |
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$this->include_module($determined_format['group'] . '.' . $determined_format['module']); |
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// Instantiate module class and analyze |
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$class_name = 'getid3_' . $determined_format['module']; |
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if (!class_exists($class_name)) { |
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throw new getid3_exception('Format not supported, module, ' . $determined_format['include'] . ', is corrupt.'); |
|
274
|
|
|
} |
|
275
|
|
|
$class = new $class_name($this); |
|
276
|
|
|
|
|
277
|
|
|
try { |
|
278
|
|
|
$this->option_analyze and $class->Analyze(); |
|
279
|
|
|
} catch (getid3_exception $e) { |
|
280
|
|
|
throw $e; |
|
281
|
|
|
} catch (Exception $e) { |
|
282
|
|
|
throw new getid3_exception('Corrupt file.'); |
|
283
|
|
|
} |
|
284
|
|
|
|
|
285
|
|
|
// Close file |
|
286
|
|
|
fclose($this->fp); |
|
287
|
|
|
|
|
288
|
|
|
// Optional - Process all tags - copy to 'tags' and convert charsets |
|
289
|
|
|
if ($this->option_tags_process) { |
|
290
|
|
|
$this->HandleAllTags(); |
|
291
|
|
|
} |
|
292
|
|
|
|
|
293
|
|
|
//// Optional - perform more calculations |
|
294
|
|
|
if ($this->option_extra_info) { |
|
295
|
|
|
// Set channelmode on audio |
|
296
|
|
|
if ('1' == @$this->info['audio']['channels']) { |
|
297
|
|
|
$this->info['audio']['channelmode'] = 'mono'; |
|
298
|
|
|
} elseif ('2' == @$this->info['audio']['channels']) { |
|
299
|
|
|
$this->info['audio']['channelmode'] = 'stereo'; |
|
300
|
|
|
} |
|
301
|
|
|
|
|
302
|
|
|
// Calculate combined bitrate - audio + video |
|
303
|
|
|
$combined_bitrate = 0; |
|
304
|
|
|
$combined_bitrate += (isset($this->info['audio']['bitrate']) ? $this->info['audio']['bitrate'] : 0); |
|
305
|
|
|
$combined_bitrate += (isset($this->info['video']['bitrate']) ? $this->info['video']['bitrate'] : 0); |
|
306
|
|
|
if (($combined_bitrate > 0) && empty($this->info['bitrate'])) { |
|
307
|
|
|
$this->info['bitrate'] = $combined_bitrate; |
|
308
|
|
|
} |
|
309
|
|
|
if (!isset($this->info['playtime_seconds']) && !empty($this->info['bitrate'])) { |
|
310
|
|
|
$this->info['playtime_seconds'] = (($this->info['avdataend'] - $this->info['avdataoffset']) * 8) / $this->info['bitrate']; |
|
311
|
|
|
} |
|
312
|
|
|
|
|
313
|
|
|
// Set playtime string |
|
314
|
|
|
if (!empty($this->info['playtime_seconds']) && empty($this->info['playtime_string'])) { |
|
315
|
|
|
$this->info['playtime_string'] = floor(round($this->info['playtime_seconds']) / 60) . ':' . str_pad(floor(round($this->info['playtime_seconds']) % 60), 2, 0, STR_PAD_LEFT);; |
|
316
|
|
|
} |
|
317
|
|
|
|
|
318
|
|
|
// CalculateCompressionRatioVideo() { |
|
319
|
|
|
if (@$this->info['video'] && @$this->info['video']['resolution_x'] && @$this->info['video']['resolution_y'] && @$this->info['video']['bits_per_sample']) { |
|
320
|
|
|
// From static image formats |
|
321
|
|
|
if (in_array($this->info['video']['dataformat'], ['bmp', 'gif', 'jpeg', 'jpg', 'png', 'tiff'])) { |
|
322
|
|
|
$frame_rate = 1; |
|
323
|
|
|
$bitrate_compressed = $this->info['filesize'] * 8; |
|
324
|
|
|
} // From video formats |
|
325
|
|
|
else { |
|
326
|
|
|
$frame_rate = @$this->info['video']['frame_rate']; |
|
327
|
|
|
$bitrate_compressed = @$this->info['video']['bitrate']; |
|
328
|
|
|
} |
|
329
|
|
|
|
|
330
|
|
|
if ($frame_rate && $bitrate_compressed) { |
|
331
|
|
|
$this->info['video']['compression_ratio'] = $bitrate_compressed / ($this->info['video']['resolution_x'] * $this->info['video']['resolution_y'] * $this->info['video']['bits_per_sample'] * $frame_rate); |
|
332
|
|
|
} |
|
333
|
|
|
} |
|
334
|
|
|
|
|
335
|
|
|
// CalculateCompressionRatioAudio() { |
|
336
|
|
|
if (@$this->info['audio']['bitrate'] && @$this->info['audio']['channels'] && @$this->info['audio']['sample_rate']) { |
|
337
|
|
|
$this->info['audio']['compression_ratio'] = $this->info['audio']['bitrate'] / ($this->info['audio']['channels'] * $this->info['audio']['sample_rate'] * (@$this->info['audio']['bits_per_sample'] ? $this->info['audio']['bits_per_sample'] : 16)); |
|
338
|
|
|
} |
|
339
|
|
|
|
|
340
|
|
|
if (@$this->info['audio']['streams']) { |
|
341
|
|
|
foreach ($this->info['audio']['streams'] as $stream_number => $stream_data) { |
|
342
|
|
|
if (@$stream_data['bitrate'] && @$stream_data['channels'] && @$stream_data['sample_rate']) { |
|
343
|
|
|
$this->info['audio']['streams'][$stream_number]['compression_ratio'] = $stream_data['bitrate'] / ($stream_data['channels'] * $stream_data['sample_rate'] * (@$stream_data['bits_per_sample'] ? $stream_data['bits_per_sample'] : 16)); |
|
344
|
|
|
} |
|
345
|
|
|
} |
|
346
|
|
|
} |
|
347
|
|
|
|
|
348
|
|
|
// CalculateReplayGain() { |
|
349
|
|
|
if (@$this->info['replay_gain']) { |
|
350
|
|
|
if (!@$this->info['replay_gain']['reference_volume']) { |
|
351
|
|
|
$this->info['replay_gain']['reference_volume'] = 89; |
|
352
|
|
|
} |
|
353
|
|
|
if (isset($this->info['replay_gain']['track']['adjustment'])) { |
|
354
|
|
|
$this->info['replay_gain']['track']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['track']['adjustment']; |
|
355
|
|
|
} |
|
356
|
|
|
if (isset($this->info['replay_gain']['album']['adjustment'])) { |
|
357
|
|
|
$this->info['replay_gain']['album']['volume'] = $this->info['replay_gain']['reference_volume'] - $this->info['replay_gain']['album']['adjustment']; |
|
358
|
|
|
} |
|
359
|
|
|
|
|
360
|
|
|
if (isset($this->info['replay_gain']['track']['peak'])) { |
|
361
|
|
|
$this->info['replay_gain']['track']['max_noclip_gain'] = 0 - 20 * log10($this->info['replay_gain']['track']['peak']); |
|
362
|
|
|
} |
|
363
|
|
|
if (isset($this->info['replay_gain']['album']['peak'])) { |
|
364
|
|
|
$this->info['replay_gain']['album']['max_noclip_gain'] = 0 - 20 * log10($this->info['replay_gain']['album']['peak']); |
|
365
|
|
|
} |
|
366
|
|
|
} |
|
367
|
|
|
|
|
368
|
|
|
// ProcessAudioStreams() { |
|
369
|
|
|
if (@!$this->info['audio']['streams'] && (@$this->info['audio']['bitrate'] || @$this->info['audio']['channels'] || @$this->info['audio']['sample_rate'])) { |
|
370
|
|
|
foreach ($this->info['audio'] as $key => $value) { |
|
371
|
|
|
if ('streams' != $key) { |
|
372
|
|
|
$this->info['audio']['streams'][0][$key] = $value; |
|
373
|
|
|
} |
|
374
|
|
|
} |
|
375
|
|
|
} |
|
376
|
|
|
} |
|
377
|
|
|
|
|
378
|
|
|
// Get the md5/sha1sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags. |
|
379
|
|
|
if ($this->option_md5_data || $this->option_sha1_data) { |
|
380
|
|
|
// Load data-hash library if needed |
|
381
|
|
|
$this->include_module('lib.data_hash'); |
|
382
|
|
|
|
|
383
|
|
|
if ($this->option_sha1_data) { |
|
384
|
|
|
new getid3_lib_data_hash($this, 'sha1'); |
|
385
|
|
|
} |
|
386
|
|
|
|
|
387
|
|
|
if ($this->option_md5_data) { |
|
388
|
|
|
// no md5_data_source or option disabled -- md5_data_source supported by FLAC, MAC, OptimFROG, Wavpack4 |
|
389
|
|
|
if (!$this->option_md5_data_source || !@$this->info['md5_data_source']) { |
|
390
|
|
|
new getid3_lib_data_hash($this, 'md5'); |
|
391
|
|
|
} // copy md5_data_source to md5_data if option set to true |
|
392
|
|
|
elseif ($this->option_md5_data_source && @$this->info['md5_data_source']) { |
|
393
|
|
|
$this->info['md5_data'] = $this->info['md5_data_source']; |
|
394
|
|
|
} |
|
395
|
|
|
} |
|
396
|
|
|
} |
|
397
|
|
|
|
|
398
|
|
|
// Set warnings |
|
399
|
|
|
if ($this->warnings) { |
|
400
|
|
|
$this->info['warning'] = $this->warnings; |
|
401
|
|
|
} |
|
402
|
|
|
|
|
403
|
|
|
// Return result |
|
404
|
|
|
return $this->info; |
|
405
|
|
|
} |
|
406
|
|
|
|
|
407
|
|
|
// Return array of warnings |
|
408
|
|
|
public function warnings() |
|
409
|
|
|
{ |
|
410
|
|
|
return $this->warnings; |
|
411
|
|
|
} |
|
412
|
|
|
|
|
413
|
|
|
// Add warning(s) to $this->warnings[] |
|
414
|
|
|
public function warning($message) |
|
415
|
|
|
{ |
|
416
|
|
|
if (is_array($message)) { |
|
417
|
|
|
$this->warnings = array_merge($this->warnings, $message); |
|
418
|
|
|
} else { |
|
419
|
|
|
$this->warnings[] = $message; |
|
420
|
|
|
} |
|
421
|
|
|
} |
|
422
|
|
|
|
|
423
|
|
|
// Clear all warnings when cloning |
|
424
|
|
|
public function __clone() |
|
425
|
|
|
{ |
|
426
|
|
|
$this->warnings = []; |
|
427
|
|
|
|
|
428
|
|
|
// Copy info array, otherwise it will be a reference. |
|
429
|
|
|
$temp = $this->info; |
|
430
|
|
|
unset($this->info); |
|
431
|
|
|
$this->info = $temp; |
|
432
|
|
|
} |
|
433
|
|
|
|
|
434
|
|
|
// Convert string between charsets -- iconv() wrapper |
|
435
|
|
|
public function iconv($in_charset, $out_charset, $string, $drop01 = false) |
|
436
|
|
|
{ |
|
437
|
|
|
if ($drop01 && ("\x00" === $string || "\x01" === $string)) { |
|
438
|
|
|
return ''; |
|
439
|
|
|
} |
|
440
|
|
|
|
|
441
|
|
|
if (!$this->iconv_present) { |
|
442
|
|
|
return getid3_iconv_replacement::iconv($in_charset, $out_charset, $string); |
|
443
|
|
|
} |
|
444
|
|
|
|
|
445
|
|
|
// iconv() present |
|
446
|
|
|
if ($result = @iconv($in_charset, $out_charset . '//TRANSLIT', $string)) { |
|
447
|
|
|
if ('ISO-8859-1' == $out_charset) { |
|
448
|
|
|
return rtrim($result, "\x00"); |
|
449
|
|
|
} |
|
450
|
|
|
return $result; |
|
451
|
|
|
} |
|
452
|
|
|
|
|
453
|
|
|
$this->warning('iconv() was unable to convert the string: "' . $string . '" from ' . $in_charset . ' to ' . $out_charset); |
|
454
|
|
|
return $string; |
|
455
|
|
|
} |
|
456
|
|
|
|
|
457
|
|
|
public function include_module($name) |
|
458
|
|
|
{ |
|
459
|
|
|
if (!file_exists($this->include_path . 'module.' . $name . '.php')) { |
|
460
|
|
|
throw new getid3_exception('Required module.' . $name . '.php is missing.'); |
|
461
|
|
|
} |
|
462
|
|
|
|
|
463
|
|
|
include_once($this->include_path . 'module.' . $name . '.php'); |
|
464
|
|
|
} |
|
465
|
|
|
|
|
466
|
|
|
public function include_module_optional($name) |
|
467
|
|
|
{ |
|
468
|
|
|
if (!file_exists($this->include_path . 'module.' . $name . '.php')) { |
|
469
|
|
|
return; |
|
470
|
|
|
} |
|
471
|
|
|
|
|
472
|
|
|
include_once($this->include_path . 'module.' . $name . '.php'); |
|
473
|
|
|
return true; |
|
474
|
|
|
} |
|
475
|
|
|
|
|
476
|
|
|
// Return array containing information about all supported formats |
|
477
|
|
|
public static function GetFileFormatArray() |
|
478
|
|
|
{ |
|
479
|
|
|
static $format_info = [ |
|
480
|
|
|
|
|
481
|
|
|
// Audio formats |
|
482
|
|
|
|
|
483
|
|
|
// AC-3 - audio - Dolby AC-3 / Dolby Digital |
|
484
|
|
|
'ac3' => [ |
|
485
|
|
|
'pattern' => '^\x0B\x77', |
|
486
|
|
|
'group' => 'audio', |
|
487
|
|
|
'module' => 'ac3', |
|
488
|
|
|
'mime_type' => 'audio/ac3', |
|
489
|
|
|
], |
|
490
|
|
|
|
|
491
|
|
|
// AAC - audio - Advanced Audio Coding (AAC) - ADIF format |
|
492
|
|
|
'adif' => [ |
|
493
|
|
|
'pattern' => '^ADIF', |
|
494
|
|
|
'group' => 'audio', |
|
495
|
|
|
'module' => 'aac_adif', |
|
496
|
|
|
'mime_type' => 'application/octet-stream', |
|
497
|
|
|
'fail_ape' => 'WARNING', |
|
498
|
|
|
], |
|
499
|
|
|
|
|
500
|
|
|
// AAC - audio - Advanced Audio Coding (AAC) - ADTS format (very similar to MP3) |
|
501
|
|
|
'adts' => [ |
|
502
|
|
|
'pattern' => '^\xFF[\xF0-\xF1\xF8-\xF9]', |
|
503
|
|
|
'group' => 'audio', |
|
504
|
|
|
'module' => 'aac_adts', |
|
505
|
|
|
'mime_type' => 'application/octet-stream', |
|
506
|
|
|
'fail_ape' => 'WARNING', |
|
507
|
|
|
], |
|
508
|
|
|
|
|
509
|
|
|
// AU - audio - NeXT/Sun AUdio (AU) |
|
510
|
|
|
'au' => [ |
|
511
|
|
|
'pattern' => '^\.snd', |
|
512
|
|
|
'group' => 'audio', |
|
513
|
|
|
'module' => 'au', |
|
514
|
|
|
'mime_type' => 'audio/basic', |
|
515
|
|
|
], |
|
516
|
|
|
|
|
517
|
|
|
// AVR - audio - Audio Visual Research |
|
518
|
|
|
'avr' => [ |
|
519
|
|
|
'pattern' => '^2BIT', |
|
520
|
|
|
'group' => 'audio', |
|
521
|
|
|
'module' => 'avr', |
|
522
|
|
|
'mime_type' => 'application/octet-stream', |
|
523
|
|
|
], |
|
524
|
|
|
|
|
525
|
|
|
// BONK - audio - Bonk v0.9+ |
|
526
|
|
|
'bonk' => [ |
|
527
|
|
|
'pattern' => '^\x00(BONK|INFO|META| ID3)', |
|
528
|
|
|
'group' => 'audio', |
|
529
|
|
|
'module' => 'bonk', |
|
530
|
|
|
'mime_type' => 'audio/xmms-bonk', |
|
531
|
|
|
], |
|
532
|
|
|
|
|
533
|
|
|
// DTS - audio - Dolby Theatre System |
|
534
|
|
|
'dts' => [ |
|
535
|
|
|
'pattern' => '^\x7F\xFE\x80\x01', |
|
536
|
|
|
'group' => 'audio', |
|
537
|
|
|
'module' => 'dts', |
|
538
|
|
|
'mime_type' => 'audio/dts', |
|
539
|
|
|
], |
|
540
|
|
|
|
|
541
|
|
|
// FLAC - audio - Free Lossless Audio Codec |
|
542
|
|
|
'flac' => [ |
|
543
|
|
|
'pattern' => '^fLaC', |
|
544
|
|
|
'group' => 'audio', |
|
545
|
|
|
'module' => 'xiph', |
|
546
|
|
|
'mime_type' => 'audio/x-flac', |
|
547
|
|
|
], |
|
548
|
|
|
|
|
549
|
|
|
// LA - audio - Lossless Audio (LA) |
|
550
|
|
|
'la' => [ |
|
551
|
|
|
'pattern' => '^LA0[2-4]', |
|
552
|
|
|
'group' => 'audio', |
|
553
|
|
|
'module' => 'la', |
|
554
|
|
|
'mime_type' => 'application/octet-stream', |
|
555
|
|
|
], |
|
556
|
|
|
|
|
557
|
|
|
// LPAC - audio - Lossless Predictive Audio Compression (LPAC) |
|
558
|
|
|
'lpac' => [ |
|
559
|
|
|
'pattern' => '^LPAC', |
|
560
|
|
|
'group' => 'audio', |
|
561
|
|
|
'module' => 'lpac', |
|
562
|
|
|
'mime_type' => 'application/octet-stream', |
|
563
|
|
|
], |
|
564
|
|
|
|
|
565
|
|
|
// MIDI - audio - MIDI (Musical Instrument Digital Interface) |
|
566
|
|
|
'midi' => [ |
|
567
|
|
|
'pattern' => '^MThd', |
|
568
|
|
|
'group' => 'audio', |
|
569
|
|
|
'module' => 'midi', |
|
570
|
|
|
'mime_type' => 'audio/midi', |
|
571
|
|
|
], |
|
572
|
|
|
|
|
573
|
|
|
// MAC - audio - Monkey's Audio Compressor |
|
574
|
|
|
'mac' => [ |
|
575
|
|
|
'pattern' => '^MAC ', |
|
576
|
|
|
'group' => 'audio', |
|
577
|
|
|
'module' => 'monkey', |
|
578
|
|
|
'mime_type' => 'application/octet-stream', |
|
579
|
|
|
], |
|
580
|
|
|
|
|
581
|
|
|
// MOD - audio - MODule (assorted sub-formats) |
|
582
|
|
|
'mod' => [ |
|
583
|
|
|
'pattern' => '^.{1080}(M.K.|[5-9]CHN|[1-3][0-9]CH)', |
|
584
|
|
|
'mime_type' => 'audio/mod', |
|
585
|
|
|
], |
|
586
|
|
|
|
|
587
|
|
|
// MOD - audio - MODule (Impulse Tracker) |
|
588
|
|
|
'it' => [ |
|
589
|
|
|
'pattern' => '^IMPM', |
|
590
|
|
|
'mime_type' => 'audio/it', |
|
591
|
|
|
], |
|
592
|
|
|
|
|
593
|
|
|
// MOD - audio - MODule (eXtended Module, various sub-formats) |
|
594
|
|
|
'xm' => [ |
|
595
|
|
|
'pattern' => '^Extended Module', |
|
596
|
|
|
'mime_type' => 'audio/xm', |
|
597
|
|
|
], |
|
598
|
|
|
|
|
599
|
|
|
// MOD - audio - MODule (ScreamTracker) |
|
600
|
|
|
's3m' => [ |
|
601
|
|
|
'pattern' => '^.{44}SCRM', |
|
602
|
|
|
'mime_type' => 'audio/s3m', |
|
603
|
|
|
], |
|
604
|
|
|
|
|
605
|
|
|
// MPC - audio - Musepack / MPEGplus SV7+ |
|
606
|
|
|
'mpc' => [ |
|
607
|
|
|
'pattern' => '^(MP\+)', |
|
608
|
|
|
'group' => 'audio', |
|
609
|
|
|
'module' => 'mpc', |
|
610
|
|
|
'mime_type' => 'audio/x-musepack', |
|
611
|
|
|
], |
|
612
|
|
|
|
|
613
|
|
|
// MPC - audio - Musepack / MPEGplus SV4-6 |
|
614
|
|
|
'mpc_old' => [ |
|
615
|
|
|
'pattern' => '^([\x00\x01\x10\x11\x40\x41\x50\x51\x80\x81\x90\x91\xC0\xC1\xD0\xD1][\x20-37][\x00\x20\x40\x60\x80\xA0\xC0\xE0])', |
|
616
|
|
|
'group' => 'audio', |
|
617
|
|
|
'module' => 'mpc_old', |
|
618
|
|
|
'mime_type' => 'application/octet-stream', |
|
619
|
|
|
], |
|
620
|
|
|
|
|
621
|
|
|
// MP3 - audio - MPEG-audio Layer 3 (very similar to AAC-ADTS) |
|
622
|
|
|
'mp3' => [ |
|
623
|
|
|
'pattern' => '^\xFF[\xE2-\xE7\xF2-\xF7\xFA-\xFF][\x00-\xEB]', |
|
624
|
|
|
'group' => 'audio', |
|
625
|
|
|
'module' => 'mp3', |
|
626
|
|
|
'mime_type' => 'audio/mpeg', |
|
627
|
|
|
], |
|
628
|
|
|
|
|
629
|
|
|
// OFR - audio - OptimFROG |
|
630
|
|
|
'ofr' => [ |
|
631
|
|
|
'pattern' => '^(\*RIFF|OFR)', |
|
632
|
|
|
'group' => 'audio', |
|
633
|
|
|
'module' => 'optimfrog', |
|
634
|
|
|
'mime_type' => 'application/octet-stream', |
|
635
|
|
|
], |
|
636
|
|
|
|
|
637
|
|
|
// RKAU - audio - RKive AUdio compressor |
|
638
|
|
|
'rkau' => [ |
|
639
|
|
|
'pattern' => '^RKA', |
|
640
|
|
|
'group' => 'audio', |
|
641
|
|
|
'module' => 'rkau', |
|
642
|
|
|
'mime_type' => 'application/octet-stream', |
|
643
|
|
|
], |
|
644
|
|
|
|
|
645
|
|
|
// SHN - audio - Shorten |
|
646
|
|
|
'shn' => [ |
|
647
|
|
|
'pattern' => '^ajkg', |
|
648
|
|
|
'group' => 'audio', |
|
649
|
|
|
'module' => 'shorten', |
|
650
|
|
|
'mime_type' => 'audio/xmms-shn', |
|
651
|
|
|
'fail_id3' => 'ERROR', |
|
652
|
|
|
'fail_ape' => 'ERROR', |
|
653
|
|
|
], |
|
654
|
|
|
|
|
655
|
|
|
// TTA - audio - TTA Lossless Audio Compressor (http://tta.corecodec.org) |
|
656
|
|
|
'tta' => [ |
|
657
|
|
|
'pattern' => '^TTA', // could also be '^TTA(\x01|\x02|\x03|2|1)' |
|
658
|
|
|
'group' => 'audio', |
|
659
|
|
|
'module' => 'tta', |
|
660
|
|
|
'mime_type' => 'application/octet-stream', |
|
661
|
|
|
], |
|
662
|
|
|
|
|
663
|
|
|
// VOC - audio - Creative Voice (VOC) |
|
664
|
|
|
'voc' => [ |
|
665
|
|
|
'pattern' => '^Creative Voice File', |
|
666
|
|
|
'group' => 'audio', |
|
667
|
|
|
'module' => 'voc', |
|
668
|
|
|
'mime_type' => 'audio/voc', |
|
669
|
|
|
], |
|
670
|
|
|
|
|
671
|
|
|
// VQF - audio - transform-domain weighted interleave Vector Quantization Format (VQF) |
|
672
|
|
|
'vqf' => [ |
|
673
|
|
|
'pattern' => '^TWIN', |
|
674
|
|
|
'group' => 'audio', |
|
675
|
|
|
'module' => 'vqf', |
|
676
|
|
|
'mime_type' => 'application/octet-stream', |
|
677
|
|
|
], |
|
678
|
|
|
|
|
679
|
|
|
// WV - audio - WavPack (v4.0+) |
|
680
|
|
|
'vw' => [ |
|
681
|
|
|
'pattern' => '^wvpk', |
|
682
|
|
|
'group' => 'audio', |
|
683
|
|
|
'module' => 'wavpack', |
|
684
|
|
|
'mime_type' => 'application/octet-stream', |
|
685
|
|
|
], |
|
686
|
|
|
|
|
687
|
|
|
// Audio-Video formats |
|
688
|
|
|
|
|
689
|
|
|
// ASF - audio/video - Advanced Streaming Format, Windows Media Video, Windows Media Audio |
|
690
|
|
|
'asf' => [ |
|
691
|
|
|
'pattern' => '^\x30\x26\xB2\x75\x8E\x66\xCF\x11\xA6\xD9\x00\xAA\x00\x62\xCE\x6C', |
|
692
|
|
|
'group' => 'audio-video', |
|
693
|
|
|
'module' => 'asf', |
|
694
|
|
|
'mime_type' => 'video/x-ms-asf', |
|
695
|
|
|
], |
|
696
|
|
|
|
|
697
|
|
|
// BINK - audio/video - Bink / Smacker |
|
698
|
|
|
'bink' => [ |
|
699
|
|
|
'pattern' => '^(BIK|SMK)', |
|
700
|
|
|
'mime_type' => 'application/octet-stream', |
|
701
|
|
|
], |
|
702
|
|
|
|
|
703
|
|
|
// FLV - audio/video - FLash Video |
|
704
|
|
|
'flv' => [ |
|
705
|
|
|
'pattern' => '^FLV\x01', |
|
706
|
|
|
'group' => 'audio-video', |
|
707
|
|
|
'module' => 'flv', |
|
708
|
|
|
'mime_type' => 'video/x-flv', |
|
709
|
|
|
], |
|
710
|
|
|
|
|
711
|
|
|
// MKAV - audio/video - Mastroka |
|
712
|
|
|
'matroska' => [ |
|
713
|
|
|
'pattern' => '^\x1A\x45\xDF\xA3', |
|
714
|
|
|
'mime_type' => 'application/octet-stream', |
|
715
|
|
|
], |
|
716
|
|
|
|
|
717
|
|
|
// MPEG - audio/video - MPEG (Moving Pictures Experts Group) |
|
718
|
|
|
'mpeg' => [ |
|
719
|
|
|
'pattern' => '^\x00\x00\x01(\xBA|\xB3)', |
|
720
|
|
|
'group' => 'audio-video', |
|
721
|
|
|
'module' => 'mpeg', |
|
722
|
|
|
'mime_type' => 'video/mpeg', |
|
723
|
|
|
], |
|
724
|
|
|
|
|
725
|
|
|
// NSV - audio/video - Nullsoft Streaming Video (NSV) |
|
726
|
|
|
'nsv' => [ |
|
727
|
|
|
'pattern' => '^NSV[sf]', |
|
728
|
|
|
'group' => 'audio-video', |
|
729
|
|
|
'module' => 'nsv', |
|
730
|
|
|
'mime_type' => 'application/octet-stream', |
|
731
|
|
|
], |
|
732
|
|
|
|
|
733
|
|
|
// Ogg - audio/video - Ogg (Ogg Vorbis, OggFLAC, Speex, Ogg Theora(*), Ogg Tarkin(*)) |
|
734
|
|
|
'ogg' => [ |
|
735
|
|
|
'pattern' => '^OggS', |
|
736
|
|
|
'group' => 'audio', |
|
737
|
|
|
'module' => 'xiph', |
|
738
|
|
|
'mime_type' => 'application/ogg', |
|
739
|
|
|
'fail_id3' => 'WARNING', |
|
740
|
|
|
'fail_ape' => 'WARNING', |
|
741
|
|
|
], |
|
742
|
|
|
|
|
743
|
|
|
// QT - audio/video - Quicktime |
|
744
|
|
|
'quicktime' => [ |
|
745
|
|
|
'pattern' => '^.{4}(cmov|free|ftyp|mdat|moov|pnot|skip|wide)', |
|
746
|
|
|
'group' => 'audio-video', |
|
747
|
|
|
'module' => 'quicktime', |
|
748
|
|
|
'mime_type' => 'video/quicktime', |
|
749
|
|
|
], |
|
750
|
|
|
|
|
751
|
|
|
// RIFF - audio/video - Resource Interchange File Format (RIFF) / WAV / AVI / CD-audio / SDSS = renamed variant used by SmartSound QuickTracks (www.smartsound.com) / FORM = Audio Interchange File Format (AIFF) |
|
752
|
|
|
'riff' => [ |
|
753
|
|
|
'pattern' => '^(RIFF|SDSS|FORM)', |
|
754
|
|
|
'group' => 'audio-video', |
|
755
|
|
|
'module' => 'riff', |
|
756
|
|
|
'mime_type' => 'audio/x-wave', |
|
757
|
|
|
'fail_ape' => 'WARNING', |
|
758
|
|
|
], |
|
759
|
|
|
|
|
760
|
|
|
// Real - audio/video - RealAudio, RealVideo |
|
761
|
|
|
'real' => [ |
|
762
|
|
|
'pattern' => '^(\.RMF|.ra)', |
|
763
|
|
|
'group' => 'audio-video', |
|
764
|
|
|
'module' => 'real', |
|
765
|
|
|
'mime_type' => 'audio/x-realaudio', |
|
766
|
|
|
], |
|
767
|
|
|
|
|
768
|
|
|
// SWF - audio/video - ShockWave Flash |
|
769
|
|
|
'swf' => [ |
|
770
|
|
|
'pattern' => '^(F|C)WS', |
|
771
|
|
|
'group' => 'audio-video', |
|
772
|
|
|
'module' => 'swf', |
|
773
|
|
|
'mime_type' => 'application/x-shockwave-flash', |
|
774
|
|
|
], |
|
775
|
|
|
|
|
776
|
|
|
// Still-Image formats |
|
777
|
|
|
|
|
778
|
|
|
// BMP - still image - Bitmap (Windows, OS/2; uncompressed, RLE8, RLE4) |
|
779
|
|
|
'bmp' => [ |
|
780
|
|
|
'pattern' => '^BM', |
|
781
|
|
|
'group' => 'graphic', |
|
782
|
|
|
'module' => 'bmp', |
|
783
|
|
|
'mime_type' => 'image/bmp', |
|
784
|
|
|
'fail_id3' => 'ERROR', |
|
785
|
|
|
'fail_ape' => 'ERROR', |
|
786
|
|
|
], |
|
787
|
|
|
|
|
788
|
|
|
// GIF - still image - Graphics Interchange Format |
|
789
|
|
|
'gif' => [ |
|
790
|
|
|
'pattern' => '^GIF', |
|
791
|
|
|
'group' => 'graphic', |
|
792
|
|
|
'module' => 'gif', |
|
793
|
|
|
'mime_type' => 'image/gif', |
|
794
|
|
|
'fail_id3' => 'ERROR', |
|
795
|
|
|
'fail_ape' => 'ERROR', |
|
796
|
|
|
], |
|
797
|
|
|
|
|
798
|
|
|
// JPEG - still image - Joint Photographic Experts Group (JPEG) |
|
799
|
|
|
'jpeg' => [ |
|
800
|
|
|
'pattern' => '^\xFF\xD8\xFF', |
|
801
|
|
|
'group' => 'graphic', |
|
802
|
|
|
'module' => 'jpeg', |
|
803
|
|
|
'mime_type' => 'image/jpeg', |
|
804
|
|
|
'fail_id3' => 'ERROR', |
|
805
|
|
|
'fail_ape' => 'ERROR', |
|
806
|
|
|
], |
|
807
|
|
|
|
|
808
|
|
|
// PCD - still image - Kodak Photo CD |
|
809
|
|
|
'pcd' => [ |
|
810
|
|
|
'pattern' => '^.{2048}PCD_IPI\x00', |
|
811
|
|
|
'group' => 'graphic', |
|
812
|
|
|
'module' => 'pcd', |
|
813
|
|
|
'mime_type' => 'image/x-photo-cd', |
|
814
|
|
|
'fail_id3' => 'ERROR', |
|
815
|
|
|
'fail_ape' => 'ERROR', |
|
816
|
|
|
], |
|
817
|
|
|
|
|
818
|
|
|
// PNG - still image - Portable Network Graphics (PNG) |
|
819
|
|
|
'png' => [ |
|
820
|
|
|
'pattern' => '^\x89\x50\x4E\x47\x0D\x0A\x1A\x0A', |
|
821
|
|
|
'group' => 'graphic', |
|
822
|
|
|
'module' => 'png', |
|
823
|
|
|
'mime_type' => 'image/png', |
|
824
|
|
|
'fail_id3' => 'ERROR', |
|
825
|
|
|
'fail_ape' => 'ERROR', |
|
826
|
|
|
], |
|
827
|
|
|
|
|
828
|
|
|
// SVG - still image - Scalable Vector Graphics (SVG) |
|
829
|
|
|
'svg' => [ |
|
830
|
|
|
'pattern' => '<!DOCTYPE svg PUBLIC ', |
|
831
|
|
|
'mime_type' => 'image/svg+xml', |
|
832
|
|
|
'fail_id3' => 'ERROR', |
|
833
|
|
|
'fail_ape' => 'ERROR', |
|
834
|
|
|
], |
|
835
|
|
|
|
|
836
|
|
|
// TIFF - still image - Tagged Information File Format (TIFF) |
|
837
|
|
|
'tiff' => [ |
|
838
|
|
|
'pattern' => '^(II\x2A\x00|MM\x00\x2A)', |
|
839
|
|
|
'group' => 'graphic', |
|
840
|
|
|
'module' => 'tiff', |
|
841
|
|
|
'mime_type' => 'image/tiff', |
|
842
|
|
|
'fail_id3' => 'ERROR', |
|
843
|
|
|
'fail_ape' => 'ERROR', |
|
844
|
|
|
], |
|
845
|
|
|
|
|
846
|
|
|
// Data formats |
|
847
|
|
|
|
|
848
|
|
|
'exe' => [ |
|
849
|
|
|
'pattern' => '^MZ', |
|
850
|
|
|
'mime_type' => 'application/octet-stream', |
|
851
|
|
|
'fail_id3' => 'ERROR', |
|
852
|
|
|
'fail_ape' => 'ERROR', |
|
853
|
|
|
], |
|
854
|
|
|
|
|
855
|
|
|
// ISO - data - International Standards Organization (ISO) CD-ROM Image |
|
856
|
|
|
'iso' => [ |
|
857
|
|
|
'pattern' => '^.{32769}CD001', |
|
858
|
|
|
'group' => 'misc', |
|
859
|
|
|
'module' => 'iso', |
|
860
|
|
|
'mime_type' => 'application/octet-stream', |
|
861
|
|
|
'fail_id3' => 'ERROR', |
|
862
|
|
|
'fail_ape' => 'ERROR', |
|
863
|
|
|
], |
|
864
|
|
|
|
|
865
|
|
|
// RAR - data - RAR compressed data |
|
866
|
|
|
'rar' => [ |
|
867
|
|
|
'pattern' => '^Rar\!', |
|
868
|
|
|
'mime_type' => 'application/octet-stream', |
|
869
|
|
|
'fail_id3' => 'ERROR', |
|
870
|
|
|
'fail_ape' => 'ERROR', |
|
871
|
|
|
], |
|
872
|
|
|
|
|
873
|
|
|
// SZIP - audio - SZIP compressed data |
|
874
|
|
|
'szip' => [ |
|
875
|
|
|
'pattern' => '^SZ\x0A\x04', |
|
876
|
|
|
'group' => 'archive', |
|
877
|
|
|
'module' => 'szip', |
|
878
|
|
|
'mime_type' => 'application/octet-stream', |
|
879
|
|
|
'fail_id3' => 'ERROR', |
|
880
|
|
|
'fail_ape' => 'ERROR', |
|
881
|
|
|
], |
|
882
|
|
|
|
|
883
|
|
|
// TAR - data - TAR compressed data |
|
884
|
|
|
'tar' => [ |
|
885
|
|
|
'pattern' => '^.{100}[0-9\x20]{7}\x00[0-9\x20]{7}\x00[0-9\x20]{7}\x00[0-9\x20\x00]{12}[0-9\x20\x00]{12}', |
|
886
|
|
|
'group' => 'archive', |
|
887
|
|
|
'module' => 'tar', |
|
888
|
|
|
'mime_type' => 'application/x-tar', |
|
889
|
|
|
'fail_id3' => 'ERROR', |
|
890
|
|
|
'fail_ape' => 'ERROR', |
|
891
|
|
|
], |
|
892
|
|
|
|
|
893
|
|
|
// GZIP - data - GZIP compressed data |
|
894
|
|
|
'gz' => [ |
|
895
|
|
|
'pattern' => '^\x1F\x8B\x08', |
|
896
|
|
|
'group' => 'archive', |
|
897
|
|
|
'module' => 'gzip', |
|
898
|
|
|
'mime_type' => 'application/x-gzip', |
|
899
|
|
|
'fail_id3' => 'ERROR', |
|
900
|
|
|
'fail_ape' => 'ERROR', |
|
901
|
|
|
], |
|
902
|
|
|
|
|
903
|
|
|
// ZIP - data - ZIP compressed data |
|
904
|
|
|
'zip' => [ |
|
905
|
|
|
'pattern' => '^PK\x03\x04', |
|
906
|
|
|
'group' => 'archive', |
|
907
|
|
|
'module' => 'zip', |
|
908
|
|
|
'mime_type' => 'application/zip', |
|
909
|
|
|
'fail_id3' => 'ERROR', |
|
910
|
|
|
'fail_ape' => 'ERROR', |
|
911
|
|
|
], |
|
912
|
|
|
|
|
913
|
|
|
// PAR2 - data - Parity Volume Set Specification 2.0 |
|
914
|
|
|
'par2' => [ |
|
915
|
|
|
'pattern' => '^PAR2\x00PKT', |
|
916
|
|
|
'mime_type' => 'application/octet-stream', |
|
917
|
|
|
'fail_id3' => 'ERROR', |
|
918
|
|
|
'fail_ape' => 'ERROR', |
|
919
|
|
|
], |
|
920
|
|
|
|
|
921
|
|
|
// PDF - data - Portable Document Format |
|
922
|
|
|
'pdf' => [ |
|
923
|
|
|
'pattern' => '^\x25PDF', |
|
924
|
|
|
'mime_type' => 'application/pdf', |
|
925
|
|
|
'fail_id3' => 'ERROR', |
|
926
|
|
|
'fail_ape' => 'ERROR', |
|
927
|
|
|
], |
|
928
|
|
|
|
|
929
|
|
|
// DOC - data - Microsoft Word |
|
930
|
|
|
'msoffice' => [ |
|
931
|
|
|
'pattern' => '^\xD0\xCF\x11\xE0', // D0CF11E == DOCFILE == Microsoft Office Document |
|
932
|
|
|
'mime_type' => 'application/octet-stream', |
|
933
|
|
|
'fail_id3' => 'ERROR', |
|
934
|
|
|
'fail_ape' => 'ERROR', |
|
935
|
|
|
], |
|
936
|
|
|
]; |
|
937
|
|
|
|
|
938
|
|
|
return $format_info; |
|
939
|
|
|
} |
|
940
|
|
|
|
|
941
|
|
|
// Recursive over array - converts array to $encoding charset from $this->encoding |
|
942
|
|
|
public function CharConvert(&$array, $encoding) |
|
943
|
|
|
{ |
|
944
|
|
|
// Identical encoding - end here |
|
945
|
|
|
if ($encoding == $this->encoding) { |
|
946
|
|
|
return; |
|
947
|
|
|
} |
|
948
|
|
|
|
|
949
|
|
|
// Loop thru array |
|
950
|
|
|
foreach ($array as $key => $value) { |
|
951
|
|
|
// Go recursive |
|
952
|
|
|
if (is_array($value)) { |
|
953
|
|
|
$this->CharConvert($array[$key], $encoding); |
|
954
|
|
|
} // Convert string |
|
955
|
|
|
elseif (is_string($value)) { |
|
956
|
|
|
$array[$key] = $this->iconv($encoding, $this->encoding, $value); |
|
957
|
|
|
} |
|
958
|
|
|
} |
|
959
|
|
|
} |
|
960
|
|
|
|
|
961
|
|
|
// Convert and copy tags |
|
962
|
|
|
protected function HandleAllTags() |
|
963
|
|
|
{ |
|
964
|
|
|
// Key name => array (tag name, character encoding) |
|
965
|
|
|
static $tags = [ |
|
966
|
|
|
'asf' => ['asf', 'UTF-16LE'], |
|
967
|
|
|
'midi' => ['midi', 'ISO-8859-1'], |
|
968
|
|
|
'nsv' => ['nsv', 'ISO-8859-1'], |
|
969
|
|
|
'ogg' => ['vorbiscomment', 'UTF-8'], |
|
970
|
|
|
'png' => ['png', 'UTF-8'], |
|
971
|
|
|
'tiff' => ['tiff', 'ISO-8859-1'], |
|
972
|
|
|
'quicktime' => ['quicktime', 'ISO-8859-1'], |
|
973
|
|
|
'real' => ['real', 'ISO-8859-1'], |
|
974
|
|
|
'vqf' => ['vqf', 'ISO-8859-1'], |
|
975
|
|
|
'zip' => ['zip', 'ISO-8859-1'], |
|
976
|
|
|
'riff' => ['riff', 'ISO-8859-1'], |
|
977
|
|
|
'lyrics3' => ['lyrics3', 'ISO-8859-1'], |
|
978
|
|
|
'id3v1' => ['id3v1', ''], // change below - cannot assign variable to static array |
|
979
|
|
|
'id3v2' => ['id3v2', 'UTF-8'], // module converts all frames to UTF-8 |
|
980
|
|
|
'ape' => ['ape', 'UTF-8'] |
|
981
|
|
|
]; |
|
982
|
|
|
$tags['id3v1'][1] = $this->encoding_id3v1; |
|
983
|
|
|
|
|
984
|
|
|
// Loop thru tags array |
|
985
|
|
|
foreach ($tags as $comment_name => $tag_name_encoding_array) { |
|
986
|
|
|
list($tag_name, $encoding) = $tag_name_encoding_array; |
|
987
|
|
|
|
|
988
|
|
|
// Fill in default encoding type if not already present |
|
989
|
|
|
@$this->info[$comment_name] and $this->info[$comment_name]['encoding'] = $encoding; |
|
990
|
|
|
|
|
991
|
|
|
// Copy comments if key name set |
|
992
|
|
|
if (@$this->info[$comment_name]['comments']) { |
|
993
|
|
|
foreach ($this->info[$comment_name]['comments'] as $tag_key => $value_array) { |
|
994
|
|
|
foreach ($value_array as $key => $value) { |
|
995
|
|
|
if (strlen(trim($value)) > 0) { |
|
996
|
|
|
$this->info['tags'][$tag_name][trim($tag_key)][] = $value; // do not trim!! Unicode characters will get mangled if trailing nulls are removed! |
|
997
|
|
|
} |
|
998
|
|
|
} |
|
999
|
|
|
} |
|
1000
|
|
|
|
|
1001
|
|
|
if (!@$this->info['tags'][$tag_name]) { |
|
1002
|
|
|
// comments are set but contain nothing but empty strings, so skip |
|
1003
|
|
|
continue; |
|
1004
|
|
|
} |
|
1005
|
|
|
|
|
1006
|
|
|
$this->CharConvert($this->info['tags'][$tag_name], $encoding); |
|
1007
|
|
|
} |
|
1008
|
|
|
} |
|
1009
|
|
|
|
|
1010
|
|
|
// Merge comments from ['tags'] into common ['comments'] |
|
1011
|
|
|
if (@$this->info['tags']) { |
|
1012
|
|
|
foreach ($this->info['tags'] as $tag_type => $tag_array) { |
|
1013
|
|
|
foreach ($tag_array as $tag_name => $tagdata) { |
|
1014
|
|
|
foreach ($tagdata as $key => $value) { |
|
1015
|
|
|
if (!empty($value)) { |
|
1016
|
|
|
if (empty($this->info['comments'][$tag_name])) { |
|
1017
|
|
|
// fall through and append value |
|
1018
|
|
|
} elseif ('id3v1' == $tag_type) { |
|
1019
|
|
|
$new_value_length = strlen(trim($value)); |
|
1020
|
|
|
foreach ($this->info['comments'][$tag_name] as $existing_key => $existing_value) { |
|
1021
|
|
|
$old_value_length = strlen(trim($existing_value)); |
|
1022
|
|
|
if (($new_value_length <= $old_value_length) && (substr($existing_value, 0, $new_value_length) == trim($value))) { |
|
1023
|
|
|
// new value is identical but shorter-than (or equal-length to) one already in comments - skip |
|
1024
|
|
|
break 2; |
|
1025
|
|
|
} |
|
1026
|
|
|
} |
|
1027
|
|
|
} else { |
|
1028
|
|
|
$new_value_length = strlen(trim($value)); |
|
1029
|
|
|
foreach ($this->info['comments'][$tag_name] as $existing_key => $existing_value) { |
|
1030
|
|
|
$old_value_length = strlen(trim($existing_value)); |
|
1031
|
|
|
if (($new_value_length > $old_value_length) && (substr(trim($value), 0, strlen($existing_value)) == $existing_value)) { |
|
1032
|
|
|
$this->info['comments'][$tag_name][$existing_key] = trim($value); |
|
1033
|
|
|
break 2; |
|
1034
|
|
|
} |
|
1035
|
|
|
} |
|
1036
|
|
|
} |
|
1037
|
|
|
|
|
1038
|
|
|
if (empty($this->info['comments'][$tag_name]) || !in_array(trim($value), $this->info['comments'][$tag_name])) { |
|
1039
|
|
|
$this->info['comments'][$tag_name][] = trim($value); |
|
1040
|
|
|
} |
|
1041
|
|
|
} |
|
1042
|
|
|
} |
|
1043
|
|
|
} |
|
1044
|
|
|
} |
|
1045
|
|
|
} |
|
1046
|
|
|
|
|
1047
|
|
|
return true; |
|
1048
|
|
|
} |
|
1049
|
|
|
} |
|
1050
|
|
|
|
|
1051
|
|
|
abstract class getid3_handler |
|
1052
|
|
|
{ |
|
1053
|
|
|
|
|
1054
|
|
|
protected $getid3; // pointer |
|
1055
|
|
|
|
|
1056
|
|
|
protected $data_string_flag = false; // analyzing filepointer or string |
|
1057
|
|
|
protected $data_string; // string to analyze |
|
1058
|
|
|
protected $data_string_position = 0; // seek position in string |
|
1059
|
|
|
|
|
1060
|
|
|
public function __construct(getID3 $getid3) |
|
1061
|
|
|
{ |
|
1062
|
|
|
$this->getid3 = $getid3; |
|
1063
|
|
|
} |
|
1064
|
|
|
|
|
1065
|
|
|
// Analyze from file pointer |
|
1066
|
|
|
abstract public function Analyze(); |
|
1067
|
|
|
|
|
1068
|
|
|
// Analyze from string instead |
|
1069
|
|
|
public function AnalyzeString(&$string) |
|
1070
|
|
|
{ |
|
1071
|
|
|
// Enter string mode |
|
1072
|
|
|
$this->data_string_flag = true; |
|
1073
|
|
|
$this->data_string = $string; |
|
1074
|
|
|
|
|
1075
|
|
|
// Save info |
|
1076
|
|
|
$saved_avdataoffset = $this->getid3->info['avdataoffset']; |
|
1077
|
|
|
$saved_avdataend = $this->getid3->info['avdataend']; |
|
1078
|
|
|
$saved_filesize = $this->getid3->info['filesize']; |
|
1079
|
|
|
|
|
1080
|
|
|
// Reset some info |
|
1081
|
|
|
$this->getid3->info['avdataoffset'] = 0; |
|
1082
|
|
|
$this->getid3->info['avdataend'] = $this->getid3->info['filesize'] = strlen($string); |
|
1083
|
|
|
|
|
1084
|
|
|
// Analyze |
|
1085
|
|
|
$this->Analyze(); |
|
1086
|
|
|
|
|
1087
|
|
|
// Restore some info |
|
1088
|
|
|
$this->getid3->info['avdataoffset'] = $saved_avdataoffset; |
|
1089
|
|
|
$this->getid3->info['avdataend'] = $saved_avdataend; |
|
1090
|
|
|
$this->getid3->info['filesize'] = $saved_filesize; |
|
1091
|
|
|
|
|
1092
|
|
|
// Exit string mode |
|
1093
|
|
|
$this->data_string_flag = false; |
|
1094
|
|
|
} |
|
1095
|
|
|
|
|
1096
|
|
|
protected function ftell() |
|
1097
|
|
|
{ |
|
1098
|
|
|
if ($this->data_string_flag) { |
|
1099
|
|
|
return $this->data_string_position; |
|
1100
|
|
|
} |
|
1101
|
|
|
return ftell($this->getid3->fp); |
|
1102
|
|
|
} |
|
1103
|
|
|
|
|
1104
|
|
|
protected function fread($bytes) |
|
1105
|
|
|
{ |
|
1106
|
|
|
if ($this->data_string_flag) { |
|
1107
|
|
|
$this->data_string_position += $bytes; |
|
1108
|
|
|
return substr($this->data_string, $this->data_string_position - $bytes, $bytes); |
|
1109
|
|
|
} |
|
1110
|
|
|
return fread($this->getid3->fp, $bytes); |
|
1111
|
|
|
} |
|
1112
|
|
|
|
|
1113
|
|
|
protected function fseek($bytes, $whence = SEEK_SET) |
|
1114
|
|
|
{ |
|
1115
|
|
|
if ($this->data_string_flag) { |
|
1116
|
|
|
switch ($whence) { |
|
1117
|
|
|
case SEEK_SET: |
|
1118
|
|
|
$this->data_string_position = $bytes; |
|
1119
|
|
|
return; |
|
1120
|
|
|
|
|
1121
|
|
|
case SEEK_CUR: |
|
1122
|
|
|
$this->data_string_position += $bytes; |
|
1123
|
|
|
return; |
|
1124
|
|
|
|
|
1125
|
|
|
case SEEK_END: |
|
1126
|
|
|
$this->data_string_position = strlen($this->data_string) + $bytes; |
|
1127
|
|
|
return; |
|
1128
|
|
|
} |
|
1129
|
|
|
} |
|
1130
|
|
|
return fseek($this->getid3->fp, $bytes, $whence); |
|
1131
|
|
|
} |
|
1132
|
|
|
|
|
1133
|
|
|
} |
|
1134
|
|
|
|
|
1135
|
|
|
abstract class getid3_handler_write |
|
1136
|
|
|
{ |
|
1137
|
|
|
protected $filename; |
|
1138
|
|
|
protected $user_abort; |
|
1139
|
|
|
|
|
1140
|
|
|
private $fp_lock; |
|
1141
|
|
|
private $owner; |
|
1142
|
|
|
private $group; |
|
1143
|
|
|
private $perms; |
|
1144
|
|
|
|
|
1145
|
|
|
public function __construct($filename) |
|
1146
|
|
|
{ |
|
1147
|
|
|
if (!file_exists($filename)) { |
|
1148
|
|
|
throw new getid3_exception('File does not exist: "' . $filename . '"'); |
|
1149
|
|
|
} |
|
1150
|
|
|
|
|
1151
|
|
|
if (!is_writeable($filename)) { |
|
1152
|
|
|
throw new getid3_exception('File is not writeable: "' . $filename . '"'); |
|
1153
|
|
|
} |
|
1154
|
|
|
|
|
1155
|
|
|
if (!is_writeable(dirname($filename))) { |
|
1156
|
|
|
throw new getid3_exception('Directory is not writeable: ' . dirname($filename) . ' (need to write lock file).'); |
|
1157
|
|
|
} |
|
1158
|
|
|
|
|
1159
|
|
|
$this->user_abort = ignore_user_abort(true); |
|
1160
|
|
|
|
|
1161
|
|
|
$this->fp_lock = fopen($filename . '.getid3.lock', 'w'); |
|
1162
|
|
|
flock($this->fp_lock, LOCK_EX); |
|
1163
|
|
|
|
|
1164
|
|
|
$this->filename = $filename; |
|
1165
|
|
|
} |
|
1166
|
|
|
|
|
1167
|
|
|
public function __destruct() |
|
1168
|
|
|
{ |
|
1169
|
|
|
flock($this->fp_lock, LOCK_UN); |
|
1170
|
|
|
fclose($this->fp_lock); |
|
1171
|
|
|
unlink($this->filename . '.getid3.lock'); |
|
1172
|
|
|
|
|
1173
|
|
|
ignore_user_abort($this->user_abort); |
|
1174
|
|
|
} |
|
1175
|
|
|
|
|
1176
|
|
|
protected function save_permissions() |
|
1177
|
|
|
{ |
|
1178
|
|
|
$this->owner = fileowner($this->filename); |
|
1179
|
|
|
$this->group = filegroup($this->filename); |
|
1180
|
|
|
$this->perms = fileperms($this->filename); |
|
1181
|
|
|
} |
|
1182
|
|
|
|
|
1183
|
|
|
protected function restore_permissions() |
|
1184
|
|
|
{ |
|
1185
|
|
|
@chown($this->filename, $this->owner); |
|
|
|
|
|
|
1186
|
|
|
@chgrp($this->filename, $this->group); |
|
|
|
|
|
|
1187
|
|
|
@chmod($this->filename, $this->perms); |
|
|
|
|
|
|
1188
|
|
|
} |
|
1189
|
|
|
|
|
1190
|
|
|
abstract public function read(); |
|
1191
|
|
|
|
|
1192
|
|
|
abstract public function write(); |
|
1193
|
|
|
|
|
1194
|
|
|
abstract public function remove(); |
|
1195
|
|
|
|
|
1196
|
|
|
} |
|
1197
|
|
|
|
|
1198
|
|
|
class getid3_exception extends Exception |
|
1199
|
|
|
{ |
|
1200
|
|
|
public $message; |
|
1201
|
|
|
|
|
1202
|
|
|
} |
|
1203
|
|
|
|
|
1204
|
|
|
class getid3_lib |
|
1205
|
|
|
{ |
|
1206
|
|
|
|
|
1207
|
|
|
// Convert Little Endian byte string to int - max 32 bits |
|
1208
|
|
|
public static function LittleEndian2Int($byte_word, $signed = false) |
|
1209
|
|
|
{ |
|
1210
|
|
|
return getid3_lib::BigEndian2Int(strrev($byte_word), $signed); |
|
1211
|
|
|
} |
|
1212
|
|
|
|
|
1213
|
|
|
// Convert number to Little Endian byte string |
|
1214
|
|
|
public static function LittleEndian2String($number, $minbytes = 1, $synchsafe = false) |
|
1215
|
|
|
{ |
|
1216
|
|
|
$intstring = ''; |
|
1217
|
|
|
while ($number > 0) { |
|
1218
|
|
|
if ($synchsafe) { |
|
1219
|
|
|
$intstring = $intstring . chr($number & 127); |
|
1220
|
|
|
$number >>= 7; |
|
1221
|
|
|
} else { |
|
1222
|
|
|
$intstring = $intstring . chr($number & 255); |
|
1223
|
|
|
$number >>= 8; |
|
1224
|
|
|
} |
|
1225
|
|
|
} |
|
1226
|
|
|
return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); |
|
1227
|
|
|
} |
|
1228
|
|
|
|
|
1229
|
|
|
// Convert Big Endian byte string to int - max 32 bits |
|
1230
|
|
|
public static function BigEndian2Int($byte_word, $signed = false) |
|
1231
|
|
|
{ |
|
1232
|
|
|
$int_value = 0; |
|
1233
|
|
|
$byte_wordlen = strlen($byte_word); |
|
1234
|
|
|
|
|
1235
|
|
|
for ($i = 0; $i < $byte_wordlen; $i++) { |
|
1236
|
|
|
$int_value += ord($byte_word{$i}) * pow(256, ($byte_wordlen - 1 - $i)); |
|
1237
|
|
|
} |
|
1238
|
|
|
|
|
1239
|
|
|
if ($signed) { |
|
1240
|
|
|
$sign_mask_bit = 0x80 << (8 * ($byte_wordlen - 1)); |
|
1241
|
|
|
if ($int_value & $sign_mask_bit) { |
|
1242
|
|
|
$int_value = 0 - ($int_value & ($sign_mask_bit - 1)); |
|
1243
|
|
|
} |
|
1244
|
|
|
} |
|
1245
|
|
|
|
|
1246
|
|
|
return $int_value; |
|
1247
|
|
|
} |
|
1248
|
|
|
|
|
1249
|
|
|
// Convert Big Endian byte sybc safe string to int - max 32 bits |
|
1250
|
|
|
public static function BigEndianSyncSafe2Int($byte_word) |
|
1251
|
|
|
{ |
|
1252
|
|
|
$int_value = 0; |
|
1253
|
|
|
$byte_wordlen = strlen($byte_word); |
|
1254
|
|
|
|
|
1255
|
|
|
// disregard MSB, effectively 7-bit bytes |
|
1256
|
|
|
for ($i = 0; $i < $byte_wordlen; $i++) { |
|
1257
|
|
|
$int_value = $int_value | (ord($byte_word{$i}) & 0x7F) << (($byte_wordlen - 1 - $i) * 7); |
|
1258
|
|
|
} |
|
1259
|
|
|
return $int_value; |
|
1260
|
|
|
} |
|
1261
|
|
|
|
|
1262
|
|
|
// Convert Big Endian byte string to bit string |
|
1263
|
|
|
public static function BigEndian2Bin($byte_word) |
|
1264
|
|
|
{ |
|
1265
|
|
|
$bin_value = ''; |
|
1266
|
|
|
$byte_wordlen = strlen($byte_word); |
|
1267
|
|
|
for ($i = 0; $i < $byte_wordlen; $i++) { |
|
1268
|
|
|
$bin_value .= str_pad(decbin(ord($byte_word{$i})), 8, '0', STR_PAD_LEFT); |
|
1269
|
|
|
} |
|
1270
|
|
|
return $bin_value; |
|
1271
|
|
|
} |
|
1272
|
|
|
|
|
1273
|
|
|
public static function BigEndian2Float($byte_word) |
|
1274
|
|
|
{ |
|
1275
|
|
|
// ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic |
|
1276
|
|
|
// http://www.psc.edu/general/software/packages/ieee/ieee.html |
|
1277
|
|
|
// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html |
|
1278
|
|
|
|
|
1279
|
|
|
$bit_word = getid3_lib::BigEndian2Bin($byte_word); |
|
1280
|
|
|
if (!$bit_word) { |
|
1281
|
|
|
return 0; |
|
1282
|
|
|
} |
|
1283
|
|
|
$sign_bit = $bit_word{0}; |
|
1284
|
|
|
|
|
1285
|
|
|
switch (strlen($byte_word) * 8) { |
|
1286
|
|
|
case 32: |
|
1287
|
|
|
$exponent_bits = 8; |
|
1288
|
|
|
$fraction_bits = 23; |
|
1289
|
|
|
break; |
|
1290
|
|
|
|
|
1291
|
|
|
case 64: |
|
1292
|
|
|
$exponent_bits = 11; |
|
1293
|
|
|
$fraction_bits = 52; |
|
1294
|
|
|
break; |
|
1295
|
|
|
|
|
1296
|
|
|
case 80: |
|
1297
|
|
|
// 80-bit Apple SANE format |
|
1298
|
|
|
// http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/ |
|
1299
|
|
|
$exponent_string = substr($bit_word, 1, 15); |
|
1300
|
|
|
$is_normalized = intval($bit_word{16}); |
|
1301
|
|
|
$fraction_string = substr($bit_word, 17, 63); |
|
1302
|
|
|
$exponent = pow(2, getid3_lib::Bin2Dec($exponent_string) - 16383); |
|
|
|
|
|
|
1303
|
|
|
$fraction = $is_normalized + getid3_lib::DecimalBinary2Float($fraction_string); |
|
1304
|
|
|
$float_value = $exponent * $fraction; |
|
1305
|
|
|
if ('1' == $sign_bit) { |
|
1306
|
|
|
$float_value *= -1; |
|
1307
|
|
|
} |
|
1308
|
|
|
return $float_value; |
|
1309
|
|
|
break; |
|
|
|
|
|
|
1310
|
|
|
|
|
1311
|
|
|
default: |
|
1312
|
|
|
return false; |
|
1313
|
|
|
break; |
|
1314
|
|
|
} |
|
1315
|
|
|
$exponent_string = substr($bit_word, 1, $exponent_bits); |
|
1316
|
|
|
$fraction_string = substr($bit_word, $exponent_bits + 1, $fraction_bits); |
|
1317
|
|
|
$exponent = bindec($exponent_string); |
|
1318
|
|
|
$fraction = bindec($fraction_string); |
|
1319
|
|
|
|
|
1320
|
|
|
if (($exponent == (pow(2, $exponent_bits) - 1)) && (0 != $fraction)) { |
|
1321
|
|
|
// Not a Number |
|
1322
|
|
|
$float_value = false; |
|
1323
|
|
|
} elseif (($exponent == (pow(2, $exponent_bits) - 1)) && (0 == $fraction)) { |
|
1324
|
|
|
if ('1' == $sign_bit) { |
|
1325
|
|
|
$float_value = '-infinity'; |
|
1326
|
|
|
} else { |
|
1327
|
|
|
$float_value = '+infinity'; |
|
1328
|
|
|
} |
|
1329
|
|
|
} elseif ((0 == $exponent) && (0 == $fraction)) { |
|
1330
|
|
|
if ('1' == $sign_bit) { |
|
1331
|
|
|
$float_value = -0; |
|
|
|
|
|
|
1332
|
|
|
} else { |
|
1333
|
|
|
$float_value = 0; |
|
1334
|
|
|
} |
|
1335
|
|
|
$float_value = ($sign_bit ? 0 : -0); |
|
1336
|
|
|
} elseif ((0 == $exponent) && (0 != $fraction)) { |
|
1337
|
|
|
// These are 'unnormalized' values |
|
1338
|
|
|
$float_value = pow(2, (-1 * (pow(2, $exponent_bits - 1) - 2))) * getid3_lib::DecimalBinary2Float($fraction_string); |
|
1339
|
|
|
if ('1' == $sign_bit) { |
|
1340
|
|
|
$float_value *= -1; |
|
1341
|
|
|
} |
|
1342
|
|
|
} elseif (0 != $exponent) { |
|
1343
|
|
|
$float_value = pow(2, ($exponent - (pow(2, $exponent_bits - 1) - 1))) * (1 + getid3_lib::DecimalBinary2Float($fraction_string)); |
|
1344
|
|
|
if ('1' == $sign_bit) { |
|
1345
|
|
|
$float_value *= -1; |
|
1346
|
|
|
} |
|
1347
|
|
|
} |
|
1348
|
|
|
return (float)$float_value; |
|
|
|
|
|
|
1349
|
|
|
} |
|
1350
|
|
|
|
|
1351
|
|
|
public static function LittleEndian2Float($byte_word) |
|
1352
|
|
|
{ |
|
1353
|
|
|
return getid3_lib::BigEndian2Float(strrev($byte_word)); |
|
1354
|
|
|
} |
|
1355
|
|
|
|
|
1356
|
|
|
public static function DecimalBinary2Float($binary_numerator) |
|
1357
|
|
|
{ |
|
1358
|
|
|
$numerator = bindec($binary_numerator); |
|
1359
|
|
|
$denominator = bindec('1' . str_repeat('0', strlen($binary_numerator))); |
|
1360
|
|
|
return ($numerator / $denominator); |
|
1361
|
|
|
} |
|
1362
|
|
|
|
|
1363
|
|
|
public static function PrintHexBytes($string, $hex = true, $spaces = true, $html_safe = true) |
|
1364
|
|
|
{ |
|
1365
|
|
|
$return_string = ''; |
|
1366
|
|
|
for ($i = 0; $i < strlen($string); $i++) { |
|
1367
|
|
|
if ($hex) { |
|
1368
|
|
|
$return_string .= str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT); |
|
1369
|
|
|
} else { |
|
1370
|
|
|
$return_string .= ' ' . (ereg("[\x20-\x7E]", $string{$i}) ? $string{$i} : '�'); |
|
1371
|
|
|
} |
|
1372
|
|
|
if ($spaces) { |
|
1373
|
|
|
$return_string .= ' '; |
|
1374
|
|
|
} |
|
1375
|
|
|
} |
|
1376
|
|
|
if ($html_safe) { |
|
1377
|
|
|
$return_string = htmlentities($return_string); |
|
1378
|
|
|
} |
|
1379
|
|
|
return $return_string; |
|
1380
|
|
|
} |
|
1381
|
|
|
|
|
1382
|
|
|
|
|
1383
|
|
|
|
|
1384
|
|
|
// Process header data string - read several values with algorithm and add to target |
|
1385
|
|
|
// algorithm is one one the getid3_lib::Something2Something() function names |
|
1386
|
|
|
// parts_array is index => length - $target[index] = algorithm(substring(data)) |
|
1387
|
|
|
// - OR just substring(data) if length is negative! |
|
1388
|
|
|
// indexes == 'IGNORE**' are ignored |
|
1389
|
|
|
|
|
1390
|
|
|
public static function ReadSequence($algorithm, &$target, &$data, $offset, $parts_array) |
|
1391
|
|
|
{ |
|
1392
|
|
|
// Loop thru $parts_array |
|
1393
|
|
|
foreach ($parts_array as $target_string => $length) { |
|
1394
|
|
|
// Add to target |
|
1395
|
|
|
if (!strstr($target_string, 'IGNORE')) { |
|
1396
|
|
|
// substr(....length) |
|
1397
|
|
|
if ($length < 0) { |
|
1398
|
|
|
$target[$target_string] = substr($data, $offset, -$length); |
|
1399
|
|
|
} // algorithm(substr(...length)) |
|
1400
|
|
|
else { |
|
1401
|
|
|
$target[$target_string] = getid3_lib::$algorithm(substr($data, $offset, $length)); |
|
1402
|
|
|
} |
|
1403
|
|
|
} |
|
1404
|
|
|
|
|
1405
|
|
|
// Move pointer |
|
1406
|
|
|
$offset += abs($length); |
|
1407
|
|
|
} |
|
1408
|
|
|
} |
|
1409
|
|
|
|
|
1410
|
|
|
} |
|
1411
|
|
|
|
|
1412
|
|
|
class getid3_lib_replaygain |
|
1413
|
|
|
{ |
|
1414
|
|
|
|
|
1415
|
|
|
public static function NameLookup($name_code) |
|
1416
|
|
|
{ |
|
1417
|
|
|
static $lookup = [ |
|
1418
|
|
|
0 => 'not set', |
|
1419
|
|
|
1 => 'Track Gain Adjustment', |
|
1420
|
|
|
2 => 'Album Gain Adjustment' |
|
1421
|
|
|
]; |
|
1422
|
|
|
|
|
1423
|
|
|
return @$lookup[$name_code]; |
|
1424
|
|
|
} |
|
1425
|
|
|
|
|
1426
|
|
|
public static function OriginatorLookup($originator_code) |
|
1427
|
|
|
{ |
|
1428
|
|
|
static $lookup = [ |
|
1429
|
|
|
0 => 'unspecified', |
|
1430
|
|
|
1 => 'pre-set by artist/producer/mastering engineer', |
|
1431
|
|
|
2 => 'set by user', |
|
1432
|
|
|
3 => 'determined automatically' |
|
1433
|
|
|
]; |
|
1434
|
|
|
|
|
1435
|
|
|
return @$lookup[$originator_code]; |
|
1436
|
|
|
} |
|
1437
|
|
|
|
|
1438
|
|
|
public static function AdjustmentLookup($raw_adjustment, $sign_bit) |
|
1439
|
|
|
{ |
|
1440
|
|
|
return (float)$raw_adjustment / 10 * (1 == $sign_bit ? -1 : 1); |
|
1441
|
|
|
} |
|
1442
|
|
|
|
|
1443
|
|
|
public static function GainString($name_code, $originator_code, $replaygain) |
|
1444
|
|
|
{ |
|
1445
|
|
|
$sign_bit = $replaygain < 0 ? 1 : 0; |
|
1446
|
|
|
|
|
1447
|
|
|
$stored_replaygain = intval(round($replaygain * 10)); |
|
1448
|
|
|
$gain_string = str_pad(decbin($name_code), 3, '0', STR_PAD_LEFT); |
|
1449
|
|
|
$gain_string .= str_pad(decbin($originator_code), 3, '0', STR_PAD_LEFT); |
|
1450
|
|
|
$gain_string .= $sign_bit; |
|
1451
|
|
|
$gain_string .= str_pad(decbin($stored_replaygain), 9, '0', STR_PAD_LEFT); |
|
1452
|
|
|
|
|
1453
|
|
|
return $gain_string; |
|
1454
|
|
|
} |
|
1455
|
|
|
|
|
1456
|
|
|
} |
|
1457
|
|
|
|
|
1458
|
|
|
|
|
1459
|
|
|
|
mambax7 /
xoopseditors
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