vendor/james-heinrich/getid3/getid3/module.audio-video.bink.php

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