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