ecommun / owncloud_ynh

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sources/3rdparty/getid3/module.audio.aa.php 2.3 KB
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  <?php
  /////////////////////////////////////////////////////////////////
  /// getID3() by James Heinrich <info@getid3.org>               //
  //  available at http://getid3.sourceforge.net                 //
  //            or http://www.getid3.org                         //
  /////////////////////////////////////////////////////////////////
  // See readme.txt for more details                             //
  /////////////////////////////////////////////////////////////////
  //                                                             //
  // module.audio.aa.php                                         //
  // module for analyzing Audible Audiobook files                //
  // dependencies: NONE                                          //
  //                                                            ///
  /////////////////////////////////////////////////////////////////
  
  
  class getid3_aa extends getid3_handler
  {
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  	public function Analyze() {
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  		$info = &$this->getid3->info;
  
  		fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
  		$AAheader  = fread($this->getid3->fp, 8);
  
  		$magic = "\x57\x90\x75\x36";
  		if (substr($AAheader, 4, 4) != $magic) {
  			$info['error'][] = 'Expecting "'.getid3_lib::PrintHexBytes($magic).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes(substr($AAheader, 4, 4)).'"';
  			return false;
  		}
  
  		// shortcut
  		$info['aa'] = array();
  		$thisfile_au = &$info['aa'];
  
  		$info['fileformat']            = 'aa';
  		$info['audio']['dataformat']   = 'aa';
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  $info['error'][] = 'Audible Audiobook (.aa) parsing not enabled in this version of getID3() ['.$this->getid3->version().']';
  return false;
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  		$info['audio']['bitrate_mode'] = 'cbr'; // is it?
  		$thisfile_au['encoding']       = 'ISO-8859-1';
  
  		$thisfile_au['filesize'] = getid3_lib::BigEndian2Int(substr($AUheader,  0, 4));
  		if ($thisfile_au['filesize'] > ($info['avdataend'] - $info['avdataoffset'])) {
  			$info['warning'][] = 'Possible truncated file - expecting "'.$thisfile_au['filesize'].'" bytes of data, only found '.($info['avdataend'] - $info['avdataoffset']).' bytes"';
  		}
  
  		$info['audio']['bits_per_sample'] = 16; // is it?
  		$info['audio']['sample_rate'] = $thisfile_au['sample_rate'];
  		$info['audio']['channels']    = $thisfile_au['channels'];
  
  		//$info['playtime_seconds'] = 0;
  		//$info['audio']['bitrate'] = 0;
  
  		return true;
  	}
  
  }