317 lines
8.2 KiB
PHP
317 lines
8.2 KiB
PHP
<?php
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/////////////////////////////////////////////////////////////////
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/// getID3() by James Heinrich <info@getid3.org> //
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// available at https://github.com/JamesHeinrich/getID3 //
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// or https://www.getid3.org //
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// or http://getid3.sourceforge.net //
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// //
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// /demo/demo.audioinfo.class.php - part of getID3() //
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// ///
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/////////////////////////////////////////////////////////////////
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// +----------------------------------------------------------------------+
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// | PHP version 4.1.0 |
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// +----------------------------------------------------------------------+
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// | Placed in public domain by Allan Hansen, 2002. Share and enjoy! |
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// +----------------------------------------------------------------------+
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// | /demo/demo.audioinfo.class.php |
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// | |
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// | Example wrapper class to extract information from audio files |
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// | through getID3(). |
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// | |
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// | getID3() returns a lot of information. Much of this information is |
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// | not needed for the end-application. It is also possible that some |
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// | users want to extract specific info. Modifying getID3() files is a |
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// | bad idea, as modifications needs to be done to future versions of |
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// | getID3(). |
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// | |
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// | Modify this wrapper class instead. This example extracts certain |
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// | fields only and adds a new root value - encoder_options if possible. |
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// | It also checks for mp3 files with wave headers. |
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// +----------------------------------------------------------------------+
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// | Example code: |
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// | $au = new AudioInfo(); |
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// | print_r($au->Info('file.flac'); |
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// +----------------------------------------------------------------------+
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// | Authors: Allan Hansen <ahØartemis*dk> |
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// +----------------------------------------------------------------------+
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/**
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* getID3() settings
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*/
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require_once('../getid3/getid3.php');
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/**
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* Class for extracting information from audio files with getID3().
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*/
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class AudioInfo {
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/**
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* Private variables
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*/
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private $result;
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private $info;
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private $getID3;
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/**
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* Constructor
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*/
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function __construct() {
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// Initialize getID3 engine
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$this->getID3 = new getID3;
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$this->getID3->option_md5_data = true;
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$this->getID3->option_md5_data_source = true;
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$this->getID3->encoding = 'UTF-8';
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}
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/**
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* Extract information - only public function
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*
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* @param string $file Audio file to extract info from.
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*
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* @return array
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*/
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public function Info($file) {
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// Analyze file
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$this->info = $this->getID3->analyze($file);
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// Exit here on error
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if (isset($this->info['error'])) {
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return array ('error' => $this->info['error']);
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}
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// Init wrapper object
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$this->result = array();
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$this->result['format_name'] = (isset($this->info['fileformat']) ? $this->info['fileformat'] : '').'/'.(isset($this->info['audio']['dataformat']) ? $this->info['audio']['dataformat'] : '').(isset($this->info['video']['dataformat']) ? '/'.$this->info['video']['dataformat'] : '');
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$this->result['encoder_version'] = (isset($this->info['audio']['encoder']) ? $this->info['audio']['encoder'] : '');
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$this->result['encoder_options'] = (isset($this->info['audio']['encoder_options']) ? $this->info['audio']['encoder_options'] : '');
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$this->result['bitrate_mode'] = (isset($this->info['audio']['bitrate_mode']) ? $this->info['audio']['bitrate_mode'] : '');
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$this->result['channels'] = (isset($this->info['audio']['channels']) ? $this->info['audio']['channels'] : '');
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$this->result['sample_rate'] = (isset($this->info['audio']['sample_rate']) ? $this->info['audio']['sample_rate'] : '');
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$this->result['bits_per_sample'] = (isset($this->info['audio']['bits_per_sample']) ? $this->info['audio']['bits_per_sample'] : '');
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$this->result['playing_time'] = (isset($this->info['playtime_seconds']) ? $this->info['playtime_seconds'] : '');
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$this->result['avg_bit_rate'] = (isset($this->info['audio']['bitrate']) ? $this->info['audio']['bitrate'] : '');
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$this->result['tags'] = (isset($this->info['tags']) ? $this->info['tags'] : '');
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$this->result['comments'] = (isset($this->info['comments']) ? $this->info['comments'] : '');
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$this->result['warning'] = (isset($this->info['warning']) ? $this->info['warning'] : '');
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$this->result['md5'] = (isset($this->info['md5_data']) ? $this->info['md5_data'] : '');
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// Post getID3() data handling based on file format
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$method = (isset($this->info['fileformat']) ? $this->info['fileformat'] : '').'Info';
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if ($method && method_exists($this, $method)) {
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$this->$method();
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}
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return $this->result;
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}
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/**
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* post-getID3() data handling for AAC files.
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*
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*/
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private function aacInfo() {
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$this->result['format_name'] = 'AAC';
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}
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/**
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* post-getID3() data handling for Wave files.
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*
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*/
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private function riffInfo() {
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if ($this->info['audio']['dataformat'] == 'wav') {
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$this->result['format_name'] = 'Wave';
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} elseif (preg_match('#^mp[1-3]$#', $this->info['audio']['dataformat'])) {
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$this->result['format_name'] = strtoupper($this->info['audio']['dataformat']);
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} else {
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$this->result['format_name'] = 'riff/'.$this->info['audio']['dataformat'];
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}
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}
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/**
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* * post-getID3() data handling for FLAC files.
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*
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*/
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private function flacInfo() {
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$this->result['format_name'] = 'FLAC';
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}
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/**
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* post-getID3() data handling for Monkey's Audio files.
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*
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*/
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private function macInfo() {
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$this->result['format_name'] = 'Monkey\'s Audio';
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}
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/**
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* post-getID3() data handling for Lossless Audio files.
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*/
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private function laInfo() {
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$this->result['format_name'] = 'La';
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}
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/**
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* post-getID3() data handling for Ogg Vorbis files.
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*
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* @access private
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*/
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function oggInfo() {
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if ($this->info['audio']['dataformat'] == 'vorbis') {
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$this->result['format_name'] = 'Ogg Vorbis';
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} else if ($this->info['audio']['dataformat'] == 'flac') {
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$this->result['format_name'] = 'Ogg FLAC';
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} else if ($this->info['audio']['dataformat'] == 'speex') {
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$this->result['format_name'] = 'Ogg Speex';
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} else {
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$this->result['format_name'] = 'Ogg '.$this->info['audio']['dataformat'];
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}
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}
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/**
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* post-getID3() data handling for Musepack files.
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*
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* @access private
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*/
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function mpcInfo() {
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$this->result['format_name'] = 'Musepack';
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}
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/**
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* post-getID3() data handling for MPEG files.
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*
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* @access private
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*/
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function mp3Info() {
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$this->result['format_name'] = 'MP3';
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}
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/**
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* post-getID3() data handling for MPEG files.
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*
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* @access private
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*/
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function mp2Info() {
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$this->result['format_name'] = 'MP2';
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}
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/**
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* post-getID3() data handling for MPEG files.
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*
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* @access private
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*/
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function mp1Info() {
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$this->result['format_name'] = 'MP1';
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}
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/**
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* post-getID3() data handling for WMA files.
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*
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* @access private
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*/
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function asfInfo() {
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$this->result['format_name'] = strtoupper($this->info['audio']['dataformat']);
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}
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/**
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* post-getID3() data handling for Real files.
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*
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* @access private
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*/
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function realInfo() {
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$this->result['format_name'] = 'Real';
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}
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/**
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* post-getID3() data handling for VQF files.
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*
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* @access private
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*/
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function vqfInfo() {
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$this->result['format_name'] = 'VQF';
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}
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}
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