www/plugins-dist/medias/lib/getid3/module.audio-video.bink.php

   1 <?php
   2 /////////////////////////////////////////////////////////////////
   3 /// getID3() by James Heinrich <info@getid3.org>               //
   4 //  available at https://github.com/JamesHeinrich/getID3       //
   5 //            or https://www.getid3.org                        //
   6 //            or http://getid3.sourceforge.net                 //
   7 //  see readme.txt for more details                            //
   8 /////////////////////////////////////////////////////////////////
   9 //                                                             //
  10 // module.audio.bink.php                                       //
  11 // module for analyzing Bink or Smacker audio-video files      //
  12 // dependencies: NONE                                          //
  13 //                                                            ///
  14 /////////////////////////////////////////////////////////////////
  15
  16 if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
  17         exit;
  18 }
  19
  20 class getid3_bink extends getid3_handler
  21 {
  22         /**
  23          * @return bool
  24          */
  25         public function Analyze() {
  26                 $info = &$this->getid3->info;
  27
  28                 $this->error('Bink / Smacker files not properly processed by this version of getID3() ['.$this->getid3->version().']');
  29
  30                 $this->fseek($info['avdataoffset']);
  31                 $fileTypeID = $this->fread(3);
  32                 switch ($fileTypeID) {
  33                         case 'BIK':
  34                                 return $this->ParseBink();
  35
  36                         case 'SMK':
  37                                 return $this->ParseSmacker();
  38
  39                         default:
  40                                 $this->error('Expecting "BIK" or "SMK" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($fileTypeID).'"');
  41                                 return false;
  42                 }
  43         }
  44
  45         /**
  46          * @return bool
  47          */
  48         public function ParseBink() {
  49                 $info = &$this->getid3->info;
  50                 $info['fileformat']          = 'bink';
  51                 $info['video']['dataformat'] = 'bink';
  52
  53                 $fileData = 'BIK'.$this->fread(13);
  54
  55                 $info['bink']['data_size']   = getid3_lib::LittleEndian2Int(substr($fileData, 4, 4));
  56                 $info['bink']['frame_count'] = getid3_lib::LittleEndian2Int(substr($fileData, 8, 2));
  57
  58                 if (($info['avdataend'] - $info['avdataoffset']) != ($info['bink']['data_size'] + 8)) {
  59                         $this->error('Probably truncated file: expecting '.$info['bink']['data_size'].' bytes, found '.($info['avdataend'] - $info['avdataoffset']));
  60                 }
  61
  62                 return true;
  63         }
  64
  65         /**
  66          * @return bool
  67          */
  68         public function ParseSmacker() {
  69                 $info = &$this->getid3->info;
  70                 $info['fileformat']          = 'smacker';
  71                 $info['video']['dataformat'] = 'smacker';
  72
  73                 return true;
  74         }
  75
  76 }