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/wp-includes/ID3/ -> module.audio-video.quicktime.php (source)

   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  /////////////////////////////////////////////////////////////////
   7  // See readme.txt for more details                             //
   8  /////////////////////////////////////////////////////////////////
   9  //                                                             //
  10  // module.audio-video.quicktime.php                            //
  11  // module for analyzing Quicktime and MP3-in-MP4 files         //
  12  // dependencies: module.audio.mp3.php                          //
  13  // dependencies: module.tag.id3v2.php                          //
  14  //                                                            ///
  15  /////////////////////////////////////////////////////////////////
  16  
  17  getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true);
  18  getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup
  19  
  20  class getid3_quicktime extends getid3_handler
  21  {
  22  
  23      public $ReturnAtomData        = true;
  24      public $ParseAllPossibleAtoms = false;
  25  
  26  	public function Analyze() {
  27          $info = &$this->getid3->info;
  28  
  29          $info['fileformat'] = 'quicktime';
  30          $info['quicktime']['hinting']    = false;
  31          $info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present
  32  
  33          fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
  34  
  35          $offset      = 0;
  36          $atomcounter = 0;
  37  
  38          while ($offset < $info['avdataend']) {
  39              if (!getid3_lib::intValueSupported($offset)) {
  40                  $info['error'][] = 'Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions';
  41                  break;
  42              }
  43              fseek($this->getid3->fp, $offset, SEEK_SET);
  44              $AtomHeader = fread($this->getid3->fp, 8);
  45  
  46              $atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
  47              $atomname = substr($AtomHeader, 4, 4);
  48  
  49              // 64-bit MOV patch by jlegateØktnc*com
  50              if ($atomsize == 1) {
  51                  $atomsize = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 8));
  52              }
  53  
  54              $info['quicktime'][$atomname]['name']   = $atomname;
  55              $info['quicktime'][$atomname]['size']   = $atomsize;
  56              $info['quicktime'][$atomname]['offset'] = $offset;
  57  
  58              if (($offset + $atomsize) > $info['avdataend']) {
  59                  $info['error'][] = 'Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)';
  60                  return false;
  61              }
  62  
  63              if ($atomsize == 0) {
  64                  // Furthermore, for historical reasons the list of atoms is optionally
  65                  // terminated by a 32-bit integer set to 0. If you are writing a program
  66                  // to read user data atoms, you should allow for the terminating 0.
  67                  break;
  68              }
  69              switch ($atomname) {
  70                  case 'mdat': // Media DATa atom
  71                      // 'mdat' contains the actual data for the audio/video
  72                      if (($atomsize > 8) && (!isset($info['avdataend_tmp']) || ($info['quicktime'][$atomname]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {
  73  
  74                          $info['avdataoffset'] = $info['quicktime'][$atomname]['offset'] + 8;
  75                          $OldAVDataEnd         = $info['avdataend'];
  76                          $info['avdataend']    = $info['quicktime'][$atomname]['offset'] + $info['quicktime'][$atomname]['size'];
  77  
  78                          $getid3_temp = new getID3();
  79                          $getid3_temp->openfile($this->getid3->filename);
  80                          $getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
  81                          $getid3_temp->info['avdataend']    = $info['avdataend'];
  82                          $getid3_mp3 = new getid3_mp3($getid3_temp);
  83                          if ($getid3_mp3->MPEGaudioHeaderValid($getid3_mp3->MPEGaudioHeaderDecode(fread($this->getid3->fp, 4)))) {
  84                              $getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
  85                              if (!empty($getid3_temp->info['warning'])) {
  86                                  foreach ($getid3_temp->info['warning'] as $value) {
  87                                      $info['warning'][] = $value;
  88                                  }
  89                              }
  90                              if (!empty($getid3_temp->info['mpeg'])) {
  91                                  $info['mpeg'] = $getid3_temp->info['mpeg'];
  92                                  if (isset($info['mpeg']['audio'])) {
  93                                      $info['audio']['dataformat']   = 'mp3';
  94                                      $info['audio']['codec']        = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3')));
  95                                      $info['audio']['sample_rate']  = $info['mpeg']['audio']['sample_rate'];
  96                                      $info['audio']['channels']     = $info['mpeg']['audio']['channels'];
  97                                      $info['audio']['bitrate']      = $info['mpeg']['audio']['bitrate'];
  98                                      $info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);
  99                                      $info['bitrate']               = $info['audio']['bitrate'];
 100                                  }
 101                              }
 102                          }
 103                          unset($getid3_mp3, $getid3_temp);
 104                          $info['avdataend'] = $OldAVDataEnd;
 105                          unset($OldAVDataEnd);
 106  
 107                      }
 108                      break;
 109  
 110                  case 'free': // FREE space atom
 111                  case 'skip': // SKIP atom
 112                  case 'wide': // 64-bit expansion placeholder atom
 113                      // 'free', 'skip' and 'wide' are just padding, contains no useful data at all
 114                      break;
 115  
 116                  default:
 117                      $atomHierarchy = array();
 118                      $info['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, fread($this->getid3->fp, $atomsize), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);
 119                      break;
 120              }
 121  
 122              $offset += $atomsize;
 123              $atomcounter++;
 124          }
 125  
 126          if (!empty($info['avdataend_tmp'])) {
 127              // this value is assigned to a temp value and then erased because
 128              // otherwise any atoms beyond the 'mdat' atom would not get parsed
 129              $info['avdataend'] = $info['avdataend_tmp'];
 130              unset($info['avdataend_tmp']);
 131          }
 132  
 133          if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {
 134              $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
 135          }
 136          if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {
 137              $info['audio']['bitrate'] = $info['bitrate'];
 138          }
 139          if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {
 140              foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {
 141                  $samples_per_second = $samples_count / $info['playtime_seconds'];
 142                  if ($samples_per_second > 240) {
 143                      // has to be audio samples
 144                  } else {
 145                      $info['video']['frame_rate'] = $samples_per_second;
 146                      break;
 147                  }
 148              }
 149          }
 150          if (($info['audio']['dataformat'] == 'mp4') && empty($info['video']['resolution_x'])) {
 151              $info['fileformat'] = 'mp4';
 152              $info['mime_type']  = 'audio/mp4';
 153              unset($info['video']['dataformat']);
 154          }
 155  
 156          if (!$this->ReturnAtomData) {
 157              unset($info['quicktime']['moov']);
 158          }
 159  
 160          if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {
 161              $info['audio']['dataformat'] = 'quicktime';
 162          }
 163          if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {
 164              $info['video']['dataformat'] = 'quicktime';
 165          }
 166  
 167          return true;
 168      }
 169  
 170  	public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
 171          // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
 172  
 173          $info = &$this->getid3->info;
 174  
 175          //$atom_parent = array_pop($atomHierarchy);
 176          $atom_parent = end($atomHierarchy); // http://www.getid3.org/phpBB3/viewtopic.php?t=1717
 177          array_push($atomHierarchy, $atomname);
 178          $atom_structure['hierarchy'] = implode(' ', $atomHierarchy);
 179          $atom_structure['name']      = $atomname;
 180          $atom_structure['size']      = $atomsize;
 181          $atom_structure['offset']    = $baseoffset;
 182  //echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8)).'<br>';
 183  //echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8), false).'<br><br>';
 184          switch ($atomname) {
 185              case 'moov': // MOVie container atom
 186              case 'trak': // TRAcK container atom
 187              case 'clip': // CLIPping container atom
 188              case 'matt': // track MATTe container atom
 189              case 'edts': // EDiTS container atom
 190              case 'tref': // Track REFerence container atom
 191              case 'mdia': // MeDIA container atom
 192              case 'minf': // Media INFormation container atom
 193              case 'dinf': // Data INFormation container atom
 194              case 'udta': // User DaTA container atom
 195              case 'cmov': // Compressed MOVie container atom
 196              case 'rmra': // Reference Movie Record Atom
 197              case 'rmda': // Reference Movie Descriptor Atom
 198              case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)
 199                  $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
 200                  break;
 201  
 202              case 'ilst': // Item LiST container atom
 203                  $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
 204  
 205                  // some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
 206                  $allnumericnames = true;
 207                  foreach ($atom_structure['subatoms'] as $subatomarray) {
 208                      if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {
 209                          $allnumericnames = false;
 210                          break;
 211                      }
 212                  }
 213                  if ($allnumericnames) {
 214                      $newData = array();
 215                      foreach ($atom_structure['subatoms'] as $subatomarray) {
 216                          foreach ($subatomarray['subatoms'] as $newData_subatomarray) {
 217                              unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);
 218                              $newData[$subatomarray['name']] = $newData_subatomarray;
 219                              break;
 220                          }
 221                      }
 222                      $atom_structure['data'] = $newData;
 223                      unset($atom_structure['subatoms']);
 224                  }
 225                  break;
 226  
 227              case "\x00\x00\x00\x01":
 228              case "\x00\x00\x00\x02":
 229              case "\x00\x00\x00\x03":
 230              case "\x00\x00\x00\x04":
 231              case "\x00\x00\x00\x05":
 232                  $atomname = getid3_lib::BigEndian2Int($atomname);
 233                  $atom_structure['name'] = $atomname;
 234                  $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
 235                  break;
 236  
 237              case 'stbl': // Sample TaBLe container atom
 238                  $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
 239                  $isVideo = false;
 240                  $framerate  = 0;
 241                  $framecount = 0;
 242                  foreach ($atom_structure['subatoms'] as $key => $value_array) {
 243                      if (isset($value_array['sample_description_table'])) {
 244                          foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {
 245                              if (isset($value_array2['data_format'])) {
 246                                  switch ($value_array2['data_format']) {
 247                                      case 'avc1':
 248                                      case 'mp4v':
 249                                          // video data
 250                                          $isVideo = true;
 251                                          break;
 252                                      case 'mp4a':
 253                                          // audio data
 254                                          break;
 255                                  }
 256                              }
 257                          }
 258                      } elseif (isset($value_array['time_to_sample_table'])) {
 259                          foreach ($value_array['time_to_sample_table'] as $key2 => $value_array2) {
 260                              if (isset($value_array2['sample_count']) && isset($value_array2['sample_duration']) && ($value_array2['sample_duration'] > 0)) {
 261                                  $framerate  = round($info['quicktime']['time_scale'] / $value_array2['sample_duration'], 3);
 262                                  $framecount = $value_array2['sample_count'];
 263                              }
 264                          }
 265                      }
 266                  }
 267                  if ($isVideo && $framerate) {
 268                      $info['quicktime']['video']['frame_rate'] = $framerate;
 269                      $info['video']['frame_rate'] = $info['quicktime']['video']['frame_rate'];
 270                  }
 271                  if ($isVideo && $framecount) {
 272                      $info['quicktime']['video']['frame_count'] = $framecount;
 273                  }
 274                  break;
 275  
 276  
 277              case 'aART': // Album ARTist
 278              case 'catg': // CaTeGory
 279              case 'covr': // COVeR artwork
 280              case 'cpil': // ComPILation
 281              case 'cprt': // CoPyRighT
 282              case 'desc': // DESCription
 283              case 'disk': // DISK number
 284              case 'egid': // Episode Global ID
 285              case 'gnre': // GeNRE
 286              case 'keyw': // KEYWord
 287              case 'ldes':
 288              case 'pcst': // PodCaST
 289              case 'pgap': // GAPless Playback
 290              case 'purd': // PURchase Date
 291              case 'purl': // Podcast URL
 292              case 'rati':
 293              case 'rndu':
 294              case 'rpdu':
 295              case 'rtng': // RaTiNG
 296              case 'stik':
 297              case 'tmpo': // TeMPO (BPM)
 298              case 'trkn': // TRacK Number
 299              case 'tves': // TV EpiSode
 300              case 'tvnn': // TV Network Name
 301              case 'tvsh': // TV SHow Name
 302              case 'tvsn': // TV SeasoN
 303              case 'akID': // iTunes store account type
 304              case 'apID':
 305              case 'atID':
 306              case 'cmID':
 307              case 'cnID':
 308              case 'geID':
 309              case 'plID':
 310              case 'sfID': // iTunes store country
 311              case '©alb': // ALBum
 312              case '©art': // ARTist
 313              case '©ART':
 314              case '©aut':
 315              case '©cmt': // CoMmenT
 316              case '©com': // COMposer
 317              case '©cpy':
 318              case '©day': // content created year
 319              case '©dir':
 320              case '©ed1':
 321              case '©ed2':
 322              case '©ed3':
 323              case '©ed4':
 324              case '©ed5':
 325              case '©ed6':
 326              case '©ed7':
 327              case '©ed8':
 328              case '©ed9':
 329              case '©enc':
 330              case '©fmt':
 331              case '©gen': // GENre
 332              case '©grp': // GRouPing
 333              case '©hst':
 334              case '©inf':
 335              case '©lyr': // LYRics
 336              case '©mak':
 337              case '©mod':
 338              case '©nam': // full NAMe
 339              case '©ope':
 340              case '©PRD':
 341              case '©prd':
 342              case '©prf':
 343              case '©req':
 344              case '©src':
 345              case '©swr':
 346              case '©too': // encoder
 347              case '©trk': // TRacK
 348              case '©url':
 349              case '©wrn':
 350              case '©wrt': // WRiTer
 351              case '----': // itunes specific
 352                  if ($atom_parent == 'udta') {
 353                      // User data atom handler
 354                      $atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
 355                      $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
 356                      $atom_structure['data']        =                           substr($atom_data, 4);
 357  
 358                      $atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
 359                      if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
 360                          $info['comments']['language'][] = $atom_structure['language'];
 361                      }
 362                  } else {
 363                      // Apple item list box atom handler
 364                      $atomoffset = 0;
 365                      if (substr($atom_data, 2, 2) == "\x10\xB5") {
 366                          // not sure what it means, but observed on iPhone4 data.
 367                          // Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
 368                          while ($atomoffset < strlen($atom_data)) {
 369                              $boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset,     2));
 370                              $boxsmalltype =                           substr($atom_data, $atomoffset + 2, 2);
 371                              $boxsmalldata =                           substr($atom_data, $atomoffset + 4, $boxsmallsize);
 372                              if ($boxsmallsize <= 1) {
 373                                  $info['warning'][] = 'Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.$atomname.'" at offset: '.($atom_structure['offset'] + $atomoffset);
 374                                  $atom_structure['data'] = null;
 375                                  $atomoffset = strlen($atom_data);
 376                                  break;
 377                              }
 378                              switch ($boxsmalltype) {
 379                                  case "\x10\xB5":
 380                                      $atom_structure['data'] = $boxsmalldata;
 381                                      break;
 382                                  default:
 383                                      $info['warning'][] = 'Unknown QuickTime smallbox type: "'.getid3_lib::PrintHexBytes($boxsmalltype).'" at offset '.$baseoffset;
 384                                      $atom_structure['data'] = $atom_data;
 385                                      break;
 386                              }
 387                              $atomoffset += (4 + $boxsmallsize);
 388                          }
 389                      } else {
 390                          while ($atomoffset < strlen($atom_data)) {
 391                              $boxsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 4));
 392                              $boxtype =                           substr($atom_data, $atomoffset + 4, 4);
 393                              $boxdata =                           substr($atom_data, $atomoffset + 8, $boxsize - 8);
 394                              if ($boxsize <= 1) {
 395                                  $info['warning'][] = 'Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.$atomname.'" at offset: '.($atom_structure['offset'] + $atomoffset);
 396                                  $atom_structure['data'] = null;
 397                                  $atomoffset = strlen($atom_data);
 398                                  break;
 399                              }
 400                              $atomoffset += $boxsize;
 401  
 402                              switch ($boxtype) {
 403                                  case 'mean':
 404                                  case 'name':
 405                                      $atom_structure[$boxtype] = substr($boxdata, 4);
 406                                      break;
 407  
 408                                  case 'data':
 409                                      $atom_structure['version']   = getid3_lib::BigEndian2Int(substr($boxdata,  0, 1));
 410                                      $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($boxdata,  1, 3));
 411                                      switch ($atom_structure['flags_raw']) {
 412                                          case 0:  // data flag
 413                                          case 21: // tmpo/cpil flag
 414                                              switch ($atomname) {
 415                                                  case 'cpil':
 416                                                  case 'pcst':
 417                                                  case 'pgap':
 418                                                      $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
 419                                                      break;
 420  
 421                                                  case 'tmpo':
 422                                                      $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2));
 423                                                      break;
 424  
 425                                                  case 'disk':
 426                                                  case 'trkn':
 427                                                      $num       = getid3_lib::BigEndian2Int(substr($boxdata, 10, 2));
 428                                                      $num_total = getid3_lib::BigEndian2Int(substr($boxdata, 12, 2));
 429                                                      $atom_structure['data']  = empty($num) ? '' : $num;
 430                                                      $atom_structure['data'] .= empty($num_total) ? '' : '/'.$num_total;
 431                                                      break;
 432  
 433                                                  case 'gnre':
 434                                                      $GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
 435                                                      $atom_structure['data']    = getid3_id3v1::LookupGenreName($GenreID - 1);
 436                                                      break;
 437  
 438                                                  case 'rtng':
 439                                                      $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
 440                                                      $atom_structure['data']    = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]);
 441                                                      break;
 442  
 443                                                  case 'stik':
 444                                                      $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
 445                                                      $atom_structure['data']    = $this->QuicktimeSTIKLookup($atom_structure[$atomname]);
 446                                                      break;
 447  
 448                                                  case 'sfID':
 449                                                      $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
 450                                                      $atom_structure['data']    = $this->QuicktimeStoreFrontCodeLookup($atom_structure[$atomname]);
 451                                                      break;
 452  
 453                                                  case 'egid':
 454                                                  case 'purl':
 455                                                      $atom_structure['data'] = substr($boxdata, 8);
 456                                                      break;
 457  
 458                                                  default:
 459                                                      $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
 460                                              }
 461                                              break;
 462  
 463                                          case 1:  // text flag
 464                                          case 13: // image flag
 465                                          default:
 466                                              $atom_structure['data'] = substr($boxdata, 8);
 467                                              break;
 468  
 469                                      }
 470                                      break;
 471  
 472                                  default:
 473                                      $info['warning'][] = 'Unknown QuickTime box type: "'.getid3_lib::PrintHexBytes($boxtype).'" at offset '.$baseoffset;
 474                                      $atom_structure['data'] = $atom_data;
 475  
 476                              }
 477                          }
 478                      }
 479                  }
 480                  $this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);
 481                  break;
 482  
 483  
 484              case 'play': // auto-PLAY atom
 485                  $atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 486  
 487                  $info['quicktime']['autoplay'] = $atom_structure['autoplay'];
 488                  break;
 489  
 490  
 491              case 'WLOC': // Window LOCation atom
 492                  $atom_structure['location_x']  = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2));
 493                  $atom_structure['location_y']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 2));
 494                  break;
 495  
 496  
 497              case 'LOOP': // LOOPing atom
 498              case 'SelO': // play SELection Only atom
 499              case 'AllF': // play ALL Frames atom
 500                  $atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);
 501                  break;
 502  
 503  
 504              case 'name': //
 505              case 'MCPS': // Media Cleaner PRo
 506              case '@PRM': // adobe PReMiere version
 507              case '@PRQ': // adobe PRemiere Quicktime version
 508                  $atom_structure['data'] = $atom_data;
 509                  break;
 510  
 511  
 512              case 'cmvd': // Compressed MooV Data atom
 513                  // Code by ubergeekØubergeek*tv based on information from
 514                  // http://developer.apple.com/quicktime/icefloe/dispatch012.html
 515                  $atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
 516  
 517                  $CompressedFileData = substr($atom_data, 4);
 518                  if ($UncompressedHeader = @gzuncompress($CompressedFileData)) {
 519                      $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms);
 520                  } else {
 521                      $info['warning'][] = 'Error decompressing compressed MOV atom at offset '.$atom_structure['offset'];
 522                  }
 523                  break;
 524  
 525  
 526              case 'dcom': // Data COMpression atom
 527                  $atom_structure['compression_id']   = $atom_data;
 528                  $atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);
 529                  break;
 530  
 531  
 532              case 'rdrf': // Reference movie Data ReFerence atom
 533                  $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 534                  $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
 535                  $atom_structure['flags']['internal_data'] = (bool) ($atom_structure['flags_raw'] & 0x000001);
 536  
 537                  $atom_structure['reference_type_name']    =                           substr($atom_data,  4, 4);
 538                  $atom_structure['reference_length']       = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
 539                  switch ($atom_structure['reference_type_name']) {
 540                      case 'url ':
 541                          $atom_structure['url']            =       $this->NoNullString(substr($atom_data, 12));
 542                          break;
 543  
 544                      case 'alis':
 545                          $atom_structure['file_alias']     =                           substr($atom_data, 12);
 546                          break;
 547  
 548                      case 'rsrc':
 549                          $atom_structure['resource_alias'] =                           substr($atom_data, 12);
 550                          break;
 551  
 552                      default:
 553                          $atom_structure['data']           =                           substr($atom_data, 12);
 554                          break;
 555                  }
 556                  break;
 557  
 558  
 559              case 'rmqu': // Reference Movie QUality atom
 560                  $atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
 561                  break;
 562  
 563  
 564              case 'rmcs': // Reference Movie Cpu Speed atom
 565                  $atom_structure['version']          = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 566                  $atom_structure['flags_raw']        = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 567                  $atom_structure['cpu_speed_rating'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
 568                  break;
 569  
 570  
 571              case 'rmvc': // Reference Movie Version Check atom
 572                  $atom_structure['version']            = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 573                  $atom_structure['flags_raw']          = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 574                  $atom_structure['gestalt_selector']   =                           substr($atom_data,  4, 4);
 575                  $atom_structure['gestalt_value_mask'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
 576                  $atom_structure['gestalt_value']      = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
 577                  $atom_structure['gestalt_check_type'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
 578                  break;
 579  
 580  
 581              case 'rmcd': // Reference Movie Component check atom
 582                  $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 583                  $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 584                  $atom_structure['component_type']         =                           substr($atom_data,  4, 4);
 585                  $atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
 586                  $atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
 587                  $atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
 588                  $atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
 589                  $atom_structure['component_min_version']  = getid3_lib::BigEndian2Int(substr($atom_data, 24, 4));
 590                  break;
 591  
 592  
 593              case 'rmdr': // Reference Movie Data Rate atom
 594                  $atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 595                  $atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 596                  $atom_structure['data_rate']     = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 597  
 598                  $atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
 599                  break;
 600  
 601  
 602              case 'rmla': // Reference Movie Language Atom
 603                  $atom_structure['version']     = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 604                  $atom_structure['flags_raw']   = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 605                  $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
 606  
 607                  $atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
 608                  if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
 609                      $info['comments']['language'][] = $atom_structure['language'];
 610                  }
 611                  break;
 612  
 613  
 614              case 'rmla': // Reference Movie Language Atom
 615                  $atom_structure['version']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 616                  $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 617                  $atom_structure['track_id']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
 618                  break;
 619  
 620  
 621              case 'ptv ': // Print To Video - defines a movie's full screen mode
 622                  // http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
 623                  $atom_structure['display_size_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
 624                  $atom_structure['reserved_1']        = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); // hardcoded: 0x0000
 625                  $atom_structure['reserved_2']        = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x0000
 626                  $atom_structure['slide_show_flag']   = getid3_lib::BigEndian2Int(substr($atom_data, 6, 1));
 627                  $atom_structure['play_on_open_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 7, 1));
 628  
 629                  $atom_structure['flags']['play_on_open'] = (bool) $atom_structure['play_on_open_flag'];
 630                  $atom_structure['flags']['slide_show']   = (bool) $atom_structure['slide_show_flag'];
 631  
 632                  $ptv_lookup[0] = 'normal';
 633                  $ptv_lookup[1] = 'double';
 634                  $ptv_lookup[2] = 'half';
 635                  $ptv_lookup[3] = 'full';
 636                  $ptv_lookup[4] = 'current';
 637                  if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {
 638                      $atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];
 639                  } else {
 640                      $info['warning'][] = 'unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')';
 641                  }
 642                  break;
 643  
 644  
 645              case 'stsd': // Sample Table Sample Description atom
 646                  $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 647                  $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 648                  $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 649                  $stsdEntriesDataOffset = 8;
 650                  for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 651                      $atom_structure['sample_description_table'][$i]['size']             = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 4));
 652                      $stsdEntriesDataOffset += 4;
 653                      $atom_structure['sample_description_table'][$i]['data_format']      =                           substr($atom_data, $stsdEntriesDataOffset, 4);
 654                      $stsdEntriesDataOffset += 4;
 655                      $atom_structure['sample_description_table'][$i]['reserved']         = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 6));
 656                      $stsdEntriesDataOffset += 6;
 657                      $atom_structure['sample_description_table'][$i]['reference_index']  = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 2));
 658                      $stsdEntriesDataOffset += 2;
 659                      $atom_structure['sample_description_table'][$i]['data']             =                           substr($atom_data, $stsdEntriesDataOffset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));
 660                      $stsdEntriesDataOffset += ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);
 661  
 662                      $atom_structure['sample_description_table'][$i]['encoder_version']  = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  0, 2));
 663                      $atom_structure['sample_description_table'][$i]['encoder_revision'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  2, 2));
 664                      $atom_structure['sample_description_table'][$i]['encoder_vendor']   =                           substr($atom_structure['sample_description_table'][$i]['data'],  4, 4);
 665  
 666                      switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {
 667  
 668                          case "\x00\x00\x00\x00":
 669                              // audio tracks
 670                              $atom_structure['sample_description_table'][$i]['audio_channels']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  2));
 671                              $atom_structure['sample_description_table'][$i]['audio_bit_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10,  2));
 672                              $atom_structure['sample_description_table'][$i]['audio_compression_id'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  2));
 673                              $atom_structure['sample_description_table'][$i]['audio_packet_size']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14,  2));
 674                              $atom_structure['sample_description_table'][$i]['audio_sample_rate']    = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16,  4));
 675  
 676                              // video tracks
 677                              // http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
 678                              $atom_structure['sample_description_table'][$i]['temporal_quality'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
 679                              $atom_structure['sample_description_table'][$i]['spatial_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
 680                              $atom_structure['sample_description_table'][$i]['width']            =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
 681                              $atom_structure['sample_description_table'][$i]['height']           =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
 682                              $atom_structure['sample_description_table'][$i]['resolution_x']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
 683                              $atom_structure['sample_description_table'][$i]['resolution_y']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
 684                              $atom_structure['sample_description_table'][$i]['data_size']        =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  4));
 685                              $atom_structure['sample_description_table'][$i]['frame_count']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36,  2));
 686                              $atom_structure['sample_description_table'][$i]['compressor_name']  =                             substr($atom_structure['sample_description_table'][$i]['data'], 38,  4);
 687                              $atom_structure['sample_description_table'][$i]['pixel_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42,  2));
 688                              $atom_structure['sample_description_table'][$i]['color_table_id']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44,  2));
 689  
 690                              switch ($atom_structure['sample_description_table'][$i]['data_format']) {
 691                                  case '2vuY':
 692                                  case 'avc1':
 693                                  case 'cvid':
 694                                  case 'dvc ':
 695                                  case 'dvcp':
 696                                  case 'gif ':
 697                                  case 'h263':
 698                                  case 'jpeg':
 699                                  case 'kpcd':
 700                                  case 'mjpa':
 701                                  case 'mjpb':
 702                                  case 'mp4v':
 703                                  case 'png ':
 704                                  case 'raw ':
 705                                  case 'rle ':
 706                                  case 'rpza':
 707                                  case 'smc ':
 708                                  case 'SVQ1':
 709                                  case 'SVQ3':
 710                                  case 'tiff':
 711                                  case 'v210':
 712                                  case 'v216':
 713                                  case 'v308':
 714                                  case 'v408':
 715                                  case 'v410':
 716                                  case 'yuv2':
 717                                      $info['fileformat'] = 'mp4';
 718                                      $info['video']['fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];
 719  // http://www.getid3.org/phpBB3/viewtopic.php?t=1550
 720  //if ((!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['width'])) && (empty($info['video']['resolution_x']) || empty($info['video']['resolution_y']) || (number_format($info['video']['resolution_x'], 6) != number_format(round($info['video']['resolution_x']), 6)) || (number_format($info['video']['resolution_y'], 6) != number_format(round($info['video']['resolution_y']), 6)))) { // ugly check for floating point numbers
 721  if (!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['height'])) {
 722      // assume that values stored here are more important than values stored in [tkhd] atom
 723      $info['video']['resolution_x'] = $atom_structure['sample_description_table'][$i]['width'];
 724      $info['video']['resolution_y'] = $atom_structure['sample_description_table'][$i]['height'];
 725      $info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
 726      $info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
 727  }
 728                                      break;
 729  
 730                                  case 'qtvr':
 731                                      $info['video']['dataformat'] = 'quicktimevr';
 732                                      break;
 733  
 734                                  case 'mp4a':
 735                                  default:
 736                                      $info['quicktime']['audio']['codec']       = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
 737                                      $info['quicktime']['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];
 738                                      $info['quicktime']['audio']['channels']    = $atom_structure['sample_description_table'][$i]['audio_channels'];
 739                                      $info['quicktime']['audio']['bit_depth']   = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];
 740                                      $info['audio']['codec']                    = $info['quicktime']['audio']['codec'];
 741                                      $info['audio']['sample_rate']              = $info['quicktime']['audio']['sample_rate'];
 742                                      $info['audio']['channels']                 = $info['quicktime']['audio']['channels'];
 743                                      $info['audio']['bits_per_sample']          = $info['quicktime']['audio']['bit_depth'];
 744                                      switch ($atom_structure['sample_description_table'][$i]['data_format']) {
 745                                          case 'raw ': // PCM
 746                                          case 'alac': // Apple Lossless Audio Codec
 747                                              $info['audio']['lossless'] = true;
 748                                              break;
 749                                          default:
 750                                              $info['audio']['lossless'] = false;
 751                                              break;
 752                                      }
 753                                      break;
 754                              }
 755                              break;
 756  
 757                          default:
 758                              switch ($atom_structure['sample_description_table'][$i]['data_format']) {
 759                                  case 'mp4s':
 760                                      $info['fileformat'] = 'mp4';
 761                                      break;
 762  
 763                                  default:
 764                                      // video atom
 765                                      $atom_structure['sample_description_table'][$i]['video_temporal_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
 766                                      $atom_structure['sample_description_table'][$i]['video_spatial_quality']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
 767                                      $atom_structure['sample_description_table'][$i]['video_frame_width']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
 768                                      $atom_structure['sample_description_table'][$i]['video_frame_height']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
 769                                      $atom_structure['sample_description_table'][$i]['video_resolution_x']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20,  4));
 770                                      $atom_structure['sample_description_table'][$i]['video_resolution_y']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
 771                                      $atom_structure['sample_description_table'][$i]['video_data_size']         =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
 772                                      $atom_structure['sample_description_table'][$i]['video_frame_count']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  2));
 773                                      $atom_structure['sample_description_table'][$i]['video_encoder_name_len']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 34,  1));
 774                                      $atom_structure['sample_description_table'][$i]['video_encoder_name']      =                             substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);
 775                                      $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66,  2));
 776                                      $atom_structure['sample_description_table'][$i]['video_color_table_id']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68,  2));
 777  
 778                                      $atom_structure['sample_description_table'][$i]['video_pixel_color_type']  = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');
 779                                      $atom_structure['sample_description_table'][$i]['video_pixel_color_name']  = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);
 780  
 781                                      if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {
 782                                          $info['quicktime']['video']['codec_fourcc']        = $atom_structure['sample_description_table'][$i]['data_format'];
 783                                          $info['quicktime']['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
 784                                          $info['quicktime']['video']['codec']               = (($atom_structure['sample_description_table'][$i]['video_encoder_name_len'] > 0) ? $atom_structure['sample_description_table'][$i]['video_encoder_name'] : $atom_structure['sample_description_table'][$i]['data_format']);
 785                                          $info['quicktime']['video']['color_depth']         = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];
 786                                          $info['quicktime']['video']['color_depth_name']    = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];
 787  
 788                                          $info['video']['codec']           = $info['quicktime']['video']['codec'];
 789                                          $info['video']['bits_per_sample'] = $info['quicktime']['video']['color_depth'];
 790                                      }
 791                                      $info['video']['lossless']           = false;
 792                                      $info['video']['pixel_aspect_ratio'] = (float) 1;
 793                                      break;
 794                              }
 795                              break;
 796                      }
 797                      switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {
 798                          case 'mp4a':
 799                              $info['audio']['dataformat']         = 'mp4';
 800                              $info['quicktime']['audio']['codec'] = 'mp4';
 801                              break;
 802  
 803                          case '3ivx':
 804                          case '3iv1':
 805                          case '3iv2':
 806                              $info['video']['dataformat'] = '3ivx';
 807                              break;
 808  
 809                          case 'xvid':
 810                              $info['video']['dataformat'] = 'xvid';
 811                              break;
 812  
 813                          case 'mp4v':
 814                              $info['video']['dataformat'] = 'mpeg4';
 815                              break;
 816  
 817                          case 'divx':
 818                          case 'div1':
 819                          case 'div2':
 820                          case 'div3':
 821                          case 'div4':
 822                          case 'div5':
 823                          case 'div6':
 824                              $info['video']['dataformat'] = 'divx';
 825                              break;
 826  
 827                          default:
 828                              // do nothing
 829                              break;
 830                      }
 831                      unset($atom_structure['sample_description_table'][$i]['data']);
 832                  }
 833                  break;
 834  
 835  
 836              case 'stts': // Sample Table Time-to-Sample atom
 837                  $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 838                  $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 839                  $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 840                  $sttsEntriesDataOffset = 8;
 841                  //$FrameRateCalculatorArray = array();
 842                  $frames_count = 0;
 843                  for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 844                      $atom_structure['time_to_sample_table'][$i]['sample_count']    = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
 845                      $sttsEntriesDataOffset += 4;
 846                      $atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
 847                      $sttsEntriesDataOffset += 4;
 848  
 849                      $frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count'];
 850  
 851                      // THIS SECTION REPLACED WITH CODE IN "stbl" ATOM
 852                      //if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
 853                      //    $stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];
 854                      //    if ($stts_new_framerate <= 60) {
 855                      //        // some atoms have durations of "1" giving a very large framerate, which probably is not right
 856                      //        $info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);
 857                      //    }
 858                      //}
 859                      //
 860                      //$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];
 861                  }
 862                  $info['quicktime']['stts_framecount'][] = $frames_count;
 863                  //$sttsFramesTotal  = 0;
 864                  //$sttsSecondsTotal = 0;
 865                  //foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {
 866                  //    if (($frames_per_second > 60) || ($frames_per_second < 1)) {
 867                  //        // not video FPS information, probably audio information
 868                  //        $sttsFramesTotal  = 0;
 869                  //        $sttsSecondsTotal = 0;
 870                  //        break;
 871                  //    }
 872                  //    $sttsFramesTotal  += $frame_count;
 873                  //    $sttsSecondsTotal += $frame_count / $frames_per_second;
 874                  //}
 875                  //if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {
 876                  //    if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {
 877                  //        $info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;
 878                  //    }
 879                  //}
 880                  break;
 881  
 882  
 883              case 'stss': // Sample Table Sync Sample (key frames) atom
 884                  if ($ParseAllPossibleAtoms) {
 885                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 886                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 887                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 888                      $stssEntriesDataOffset = 8;
 889                      for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 890                          $atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stssEntriesDataOffset, 4));
 891                          $stssEntriesDataOffset += 4;
 892                      }
 893                  }
 894                  break;
 895  
 896  
 897              case 'stsc': // Sample Table Sample-to-Chunk atom
 898                  if ($ParseAllPossibleAtoms) {
 899                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 900                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 901                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 902                      $stscEntriesDataOffset = 8;
 903                      for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 904                          $atom_structure['sample_to_chunk_table'][$i]['first_chunk']        = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
 905                          $stscEntriesDataOffset += 4;
 906                          $atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk']  = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
 907                          $stscEntriesDataOffset += 4;
 908                          $atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
 909                          $stscEntriesDataOffset += 4;
 910                      }
 911                  }
 912                  break;
 913  
 914  
 915              case 'stsz': // Sample Table SiZe atom
 916                  if ($ParseAllPossibleAtoms) {
 917                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 918                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 919                      $atom_structure['sample_size']    = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 920                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
 921                      $stszEntriesDataOffset = 12;
 922                      if ($atom_structure['sample_size'] == 0) {
 923                          for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 924                              $atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stszEntriesDataOffset, 4));
 925                              $stszEntriesDataOffset += 4;
 926                          }
 927                      }
 928                  }
 929                  break;
 930  
 931  
 932              case 'stco': // Sample Table Chunk Offset atom
 933                  if ($ParseAllPossibleAtoms) {
 934                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 935                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 936                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 937                      $stcoEntriesDataOffset = 8;
 938                      for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 939                          $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 4));
 940                          $stcoEntriesDataOffset += 4;
 941                      }
 942                  }
 943                  break;
 944  
 945  
 946              case 'co64': // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)
 947                  if ($ParseAllPossibleAtoms) {
 948                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 949                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 950                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 951                      $stcoEntriesDataOffset = 8;
 952                      for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 953                          $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 8));
 954                          $stcoEntriesDataOffset += 8;
 955                      }
 956                  }
 957                  break;
 958  
 959  
 960              case 'dref': // Data REFerence atom
 961                  $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 962                  $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 963                  $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 964                  $drefDataOffset = 8;
 965                  for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 966                      $atom_structure['data_references'][$i]['size']                    = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 4));
 967                      $drefDataOffset += 4;
 968                      $atom_structure['data_references'][$i]['type']                    =               substr($atom_data, $drefDataOffset, 4);
 969                      $drefDataOffset += 4;
 970                      $atom_structure['data_references'][$i]['version']                 = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 1));
 971                      $drefDataOffset += 1;
 972                      $atom_structure['data_references'][$i]['flags_raw']               = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 3)); // hardcoded: 0x0000
 973                      $drefDataOffset += 3;
 974                      $atom_structure['data_references'][$i]['data']                    =               substr($atom_data, $drefDataOffset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));
 975                      $drefDataOffset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);
 976  
 977                      $atom_structure['data_references'][$i]['flags']['self_reference'] = (bool) ($atom_structure['data_references'][$i]['flags_raw'] & 0x001);
 978                  }
 979                  break;
 980  
 981  
 982              case 'gmin': // base Media INformation atom
 983                  $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 984                  $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 985                  $atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
 986                  $atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
 987                  $atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
 988                  $atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
 989                  $atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data, 12, 2));
 990                  $atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
 991                  break;
 992  
 993  
 994              case 'smhd': // Sound Media information HeaDer atom
 995                  $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 996                  $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 997                  $atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
 998                  $atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
 999                  break;
1000  
1001  
1002              case 'vmhd': // Video Media information HeaDer atom
1003                  $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1004                  $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1005                  $atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
1006                  $atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
1007                  $atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
1008                  $atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
1009  
1010                  $atom_structure['flags']['no_lean_ahead'] = (bool) ($atom_structure['flags_raw'] & 0x001);
1011                  break;
1012  
1013  
1014              case 'hdlr': // HanDLeR reference atom
1015                  $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1016                  $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1017                  $atom_structure['component_type']         =                           substr($atom_data,  4, 4);
1018                  $atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
1019                  $atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
1020                  $atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1021                  $atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
1022                  $atom_structure['component_name']         =      $this->Pascal2String(substr($atom_data, 24));
1023  
1024                  if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {
1025                      $info['video']['dataformat'] = 'quicktimevr';
1026                  }
1027                  break;
1028  
1029  
1030              case 'mdhd': // MeDia HeaDer atom
1031                  $atom_structure['version']               = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1032                  $atom_structure['flags_raw']             = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1033                  $atom_structure['creation_time']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1034                  $atom_structure['modify_time']           = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1035                  $atom_structure['time_scale']            = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1036                  $atom_structure['duration']              = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1037                  $atom_structure['language_id']           = getid3_lib::BigEndian2Int(substr($atom_data, 20, 2));
1038                  $atom_structure['quality']               = getid3_lib::BigEndian2Int(substr($atom_data, 22, 2));
1039  
1040                  if ($atom_structure['time_scale'] == 0) {
1041                      $info['error'][] = 'Corrupt Quicktime file: mdhd.time_scale == zero';
1042                      return false;
1043                  }
1044                  $info['quicktime']['time_scale'] = (isset($info['quicktime']['time_scale']) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1045  
1046                  $atom_structure['creation_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1047                  $atom_structure['modify_time_unix']      = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1048                  $atom_structure['playtime_seconds']      = $atom_structure['duration'] / $atom_structure['time_scale'];
1049                  $atom_structure['language']              = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
1050                  if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
1051                      $info['comments']['language'][] = $atom_structure['language'];
1052                  }
1053                  break;
1054  
1055  
1056              case 'pnot': // Preview atom
1057                  $atom_structure['modification_date']      = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // "standard Macintosh format"
1058                  $atom_structure['version_number']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x00
1059                  $atom_structure['atom_type']              =               substr($atom_data,  6, 4);        // usually: 'PICT'
1060                  $atom_structure['atom_index']             = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2)); // usually: 0x01
1061  
1062                  $atom_structure['modification_date_unix'] = getid3_lib::DateMac2Unix($atom_structure['modification_date']);
1063                  break;
1064  
1065  
1066              case 'crgn': // Clipping ReGioN atom
1067                  $atom_structure['region_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2)); // The Region size, Region boundary box,
1068                  $atom_structure['boundary_box']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 8)); // and Clipping region data fields
1069                  $atom_structure['clipping_data'] =               substr($atom_data, 10);           // constitute a QuickDraw region.
1070                  break;
1071  
1072  
1073              case 'load': // track LOAD settings atom
1074                  $atom_structure['preload_start_time'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1075                  $atom_structure['preload_duration']   = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1076                  $atom_structure['preload_flags_raw']  = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1077                  $atom_structure['default_hints_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1078  
1079                  $atom_structure['default_hints']['double_buffer'] = (bool) ($atom_structure['default_hints_raw'] & 0x0020);
1080                  $atom_structure['default_hints']['high_quality']  = (bool) ($atom_structure['default_hints_raw'] & 0x0100);
1081                  break;
1082  
1083  
1084              case 'tmcd': // TiMe CoDe atom
1085              case 'chap': // CHAPter list atom
1086              case 'sync': // SYNChronization atom
1087              case 'scpt': // tranSCriPT atom
1088              case 'ssrc': // non-primary SouRCe atom
1089                  for ($i = 0; $i < (strlen($atom_data) % 4); $i++) {
1090                      $atom_structure['track_id'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $i * 4, 4));
1091                  }
1092                  break;
1093  
1094  
1095              case 'elst': // Edit LiST atom
1096                  $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1097                  $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1098                  $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1099                  for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) {
1100                      $atom_structure['edit_list'][$i]['track_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4));
1101                      $atom_structure['edit_list'][$i]['media_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4));
1102                      $atom_structure['edit_list'][$i]['media_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4));
1103                  }
1104                  break;
1105  
1106  
1107              case 'kmat': // compressed MATte atom
1108                  $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1109                  $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1110                  $atom_structure['matte_data_raw'] =               substr($atom_data,  4);
1111                  break;
1112  
1113  
1114              case 'ctab': // Color TABle atom
1115                  $atom_structure['color_table_seed']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // hardcoded: 0x00000000
1116                  $atom_structure['color_table_flags']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x8000
1117                  $atom_structure['color_table_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2)) + 1;
1118                  for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {
1119                      $atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2));
1120                      $atom_structure['color_table'][$colortableentry]['red']   = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2));
1121                      $atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2));
1122                      $atom_structure['color_table'][$colortableentry]['blue']  = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2));
1123                  }
1124                  break;
1125  
1126  
1127              case 'mvhd': // MoVie HeaDer atom
1128                  $atom_structure['version']            =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1129                  $atom_structure['flags_raw']          =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1130                  $atom_structure['creation_time']      =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1131                  $atom_structure['modify_time']        =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1132                  $atom_structure['time_scale']         =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1133                  $atom_structure['duration']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1134                  $atom_structure['preferred_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 20, 4));
1135                  $atom_structure['preferred_volume']   =   getid3_lib::FixedPoint8_8(substr($atom_data, 24, 2));
1136                  $atom_structure['reserved']           =                             substr($atom_data, 26, 10);
1137                  $atom_structure['matrix_a']           = getid3_lib::FixedPoint16_16(substr($atom_data, 36, 4));
1138                  $atom_structure['matrix_b']           = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1139                  $atom_structure['matrix_u']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 44, 4));
1140                  $atom_structure['matrix_c']           = getid3_lib::FixedPoint16_16(substr($atom_data, 48, 4));
1141                  $atom_structure['matrix_d']           = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1142                  $atom_structure['matrix_v']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 56, 4));
1143                  $atom_structure['matrix_x']           = getid3_lib::FixedPoint16_16(substr($atom_data, 60, 4));
1144                  $atom_structure['matrix_y']           = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1145                  $atom_structure['matrix_w']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 68, 4));
1146                  $atom_structure['preview_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 72, 4));
1147                  $atom_structure['preview_duration']   =   getid3_lib::BigEndian2Int(substr($atom_data, 76, 4));
1148                  $atom_structure['poster_time']        =   getid3_lib::BigEndian2Int(substr($atom_data, 80, 4));
1149                  $atom_structure['selection_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 84, 4));
1150                  $atom_structure['selection_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 88, 4));
1151                  $atom_structure['current_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 92, 4));
1152                  $atom_structure['next_track_id']      =   getid3_lib::BigEndian2Int(substr($atom_data, 96, 4));
1153  
1154                  if ($atom_structure['time_scale'] == 0) {
1155                      $info['error'][] = 'Corrupt Quicktime file: mvhd.time_scale == zero';
1156                      return false;
1157                  }
1158                  $atom_structure['creation_time_unix']        = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1159                  $atom_structure['modify_time_unix']          = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1160                  $info['quicktime']['time_scale']    = (isset($info['quicktime']['time_scale']) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1161                  $info['quicktime']['display_scale'] = $atom_structure['matrix_a'];
1162                  $info['playtime_seconds']           = $atom_structure['duration'] / $atom_structure['time_scale'];
1163                  break;
1164  
1165  
1166              case 'tkhd': // TracK HeaDer atom
1167                  $atom_structure['version']             =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1168                  $atom_structure['flags_raw']           =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1169                  $atom_structure['creation_time']       =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1170                  $atom_structure['modify_time']         =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1171                  $atom_structure['trackid']             =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1172                  $atom_structure['reserved1']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1173                  $atom_structure['duration']            =   getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
1174                  $atom_structure['reserved2']           =   getid3_lib::BigEndian2Int(substr($atom_data, 24, 8));
1175                  $atom_structure['layer']               =   getid3_lib::BigEndian2Int(substr($atom_data, 32, 2));
1176                  $atom_structure['alternate_group']     =   getid3_lib::BigEndian2Int(substr($atom_data, 34, 2));
1177                  $atom_structure['volume']              =   getid3_lib::FixedPoint8_8(substr($atom_data, 36, 2));
1178                  $atom_structure['reserved3']           =   getid3_lib::BigEndian2Int(substr($atom_data, 38, 2));
1179  // http://developer.apple.com/library/mac/#documentation/QuickTime/RM/MovieBasics/MTEditing/K-Chapter/11MatrixFunctions.html
1180  // http://developer.apple.com/library/mac/#documentation/QuickTime/qtff/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-18737
1181                  $atom_structure['matrix_a']            = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1182                  $atom_structure['matrix_b']            = getid3_lib::FixedPoint16_16(substr($atom_data, 44, 4));
1183                  $atom_structure['matrix_u']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 48, 4));
1184                  $atom_structure['matrix_c']            = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1185                  $atom_structure['matrix_d']            = getid3_lib::FixedPoint16_16(substr($atom_data, 56, 4));
1186                  $atom_structure['matrix_v']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 60, 4));
1187                  $atom_structure['matrix_x']            = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1188                  $atom_structure['matrix_y']            = getid3_lib::FixedPoint16_16(substr($atom_data, 68, 4));
1189                  $atom_structure['matrix_w']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 72, 4));
1190                  $atom_structure['width']               = getid3_lib::FixedPoint16_16(substr($atom_data, 76, 4));
1191                  $atom_structure['height']              = getid3_lib::FixedPoint16_16(substr($atom_data, 80, 4));
1192                  $atom_structure['flags']['enabled']    = (bool) ($atom_structure['flags_raw'] & 0x0001);
1193                  $atom_structure['flags']['in_movie']   = (bool) ($atom_structure['flags_raw'] & 0x0002);
1194                  $atom_structure['flags']['in_preview'] = (bool) ($atom_structure['flags_raw'] & 0x0004);
1195                  $atom_structure['flags']['in_poster']  = (bool) ($atom_structure['flags_raw'] & 0x0008);
1196                  $atom_structure['creation_time_unix']  = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1197                  $atom_structure['modify_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1198  
1199                  if ($atom_structure['flags']['enabled'] == 1) {
1200                      if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) {
1201                          $info['video']['resolution_x'] = $atom_structure['width'];
1202                          $info['video']['resolution_y'] = $atom_structure['height'];
1203                      }
1204                      $info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']);
1205                      $info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']);
1206                      $info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
1207                      $info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
1208                  } else {
1209                      // see: http://www.getid3.org/phpBB3/viewtopic.php?t=1295
1210                      //if (isset($info['video']['resolution_x'])) { unset($info['video']['resolution_x']); }
1211                      //if (isset($info['video']['resolution_y'])) { unset($info['video']['resolution_y']); }
1212                      //if (isset($info['quicktime']['video']))    { unset($info['quicktime']['video']);    }
1213                  }
1214                  break;
1215  
1216  
1217              case 'iods': // Initial Object DeScriptor atom
1218                  // http://www.koders.com/c/fid1FAB3E762903DC482D8A246D4A4BF9F28E049594.aspx?s=windows.h
1219                  // http://libquicktime.sourcearchive.com/documentation/1.0.2plus-pdebian/iods_8c-source.html
1220                  $offset = 0;
1221                  $atom_structure['version']                =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1222                  $offset += 1;
1223                  $atom_structure['flags_raw']              =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 3));
1224                  $offset += 3;
1225                  $atom_structure['mp4_iod_tag']            =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1226                  $offset += 1;
1227                  $atom_structure['length']                 = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1228                  //$offset already adjusted by quicktime_read_mp4_descr_length()
1229                  $atom_structure['object_descriptor_id']   =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));
1230                  $offset += 2;
1231                  $atom_structure['od_profile_level']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1232                  $offset += 1;
1233                  $atom_structure['scene_profile_level']    =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1234                  $offset += 1;
1235                  $atom_structure['audio_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1236                  $offset += 1;
1237                  $atom_structure['video_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1238                  $offset += 1;
1239                  $atom_structure['graphics_profile_level'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1240                  $offset += 1;
1241  
1242                  $atom_structure['num_iods_tracks'] = ($atom_structure['length'] - 7) / 6; // 6 bytes would only be right if all tracks use 1-byte length fields
1243                  for ($i = 0; $i < $atom_structure['num_iods_tracks']; $i++) {
1244                      $atom_structure['track'][$i]['ES_ID_IncTag'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1245                      $offset += 1;
1246                      $atom_structure['track'][$i]['length']       = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1247                      //$offset already adjusted by quicktime_read_mp4_descr_length()
1248                      $atom_structure['track'][$i]['track_id']     =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));
1249                      $offset += 4;
1250                  }
1251  
1252                  $atom_structure['audio_profile_name'] = $this->QuicktimeIODSaudioProfileName($atom_structure['audio_profile_id']);
1253                  $atom_structure['video_profile_name'] = $this->QuicktimeIODSvideoProfileName($atom_structure['video_profile_id']);
1254                  break;
1255  
1256              case 'ftyp': // FileTYPe (?) atom (for MP4 it seems)
1257                  $atom_structure['signature'] =                           substr($atom_data,  0, 4);
1258                  $atom_structure['unknown_1'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1259                  $atom_structure['fourcc']    =                           substr($atom_data,  8, 4);
1260                  break;
1261  
1262              case 'mdat': // Media DATa atom
1263              case 'free': // FREE space atom
1264              case 'skip': // SKIP atom
1265              case 'wide': // 64-bit expansion placeholder atom
1266                  // 'mdat' data is too big to deal with, contains no useful metadata
1267                  // 'free', 'skip' and 'wide' are just padding, contains no useful data at all
1268  
1269                  // When writing QuickTime files, it is sometimes necessary to update an atom's size.
1270                  // It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom
1271                  // is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime
1272                  // puts an 8-byte placeholder atom before any atoms it may have to update the size of.
1273                  // In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the
1274                  // placeholder atom can be overwritten to obtain the necessary 8 extra bytes.
1275                  // The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).
1276                  break;
1277  
1278  
1279              case 'nsav': // NoSAVe atom
1280                  // http://developer.apple.com/technotes/tn/tn2038.html
1281                  $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1282                  break;
1283  
1284              case 'ctyp': // Controller TYPe atom (seen on QTVR)
1285                  // http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
1286                  // some controller names are:
1287                  //   0x00 + 'std' for linear movie
1288                  //   'none' for no controls
1289                  $atom_structure['ctyp'] = substr($atom_data, 0, 4);
1290                  $info['quicktime']['controller'] = $atom_structure['ctyp'];
1291                  switch ($atom_structure['ctyp']) {
1292                      case 'qtvr':
1293                          $info['video']['dataformat'] = 'quicktimevr';
1294                          break;
1295                  }
1296                  break;
1297  
1298              case 'pano': // PANOrama track (seen on QTVR)
1299                  $atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1300                  break;
1301  
1302              case 'hint': // HINT track
1303              case 'hinf': //
1304              case 'hinv': //
1305              case 'hnti': //
1306                  $info['quicktime']['hinting'] = true;
1307                  break;
1308  
1309              case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR)
1310                  for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) {
1311                      $atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1312                  }
1313                  break;
1314  
1315  
1316              // Observed-but-not-handled atom types are just listed here to prevent warnings being generated
1317              case 'FXTC': // Something to do with Adobe After Effects (?)
1318              case 'PrmA':
1319              case 'code':
1320              case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html
1321              case 'tapt': // TrackApertureModeDimensionsAID - http://developer.apple.com/documentation/QuickTime/Reference/QT7-1_Update_Reference/Constants/Constants.html
1322                          // tapt seems to be used to compute the video size [http://www.getid3.org/phpBB3/viewtopic.php?t=838]
1323                          // * http://lists.apple.com/archives/quicktime-api/2006/Aug/msg00014.html
1324                          // * http://handbrake.fr/irclogs/handbrake-dev/handbrake-dev20080128_pg2.html
1325              case 'ctts'://  STCompositionOffsetAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1326              case 'cslg'://  STCompositionShiftLeastGreatestAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1327              case 'sdtp'://  STSampleDependencyAID              - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1328              case 'stps'://  STPartialSyncSampleAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1329                  //$atom_structure['data'] = $atom_data;
1330                  break;
1331  
1332              case '©xyz':  // GPS latitude+longitude+altitude
1333                  $atom_structure['data'] = $atom_data;
1334                  if (preg_match('#([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)?/$#i', $atom_data, $matches)) {
1335                      @list($all, $latitude, $longitude, $altitude) = $matches;
1336                      $info['quicktime']['comments']['gps_latitude'][]  = floatval($latitude);
1337                      $info['quicktime']['comments']['gps_longitude'][] = floatval($longitude);
1338                      if (!empty($altitude)) {
1339                          $info['quicktime']['comments']['gps_altitude'][] = floatval($altitude);
1340                      }
1341                  } else {
1342                      $info['warning'][] = 'QuickTime atom "©xyz" data does not match expected data pattern at offset '.$baseoffset.'. Please report as getID3() bug.';
1343                  }
1344                  break;
1345  
1346              case 'NCDT':
1347                  // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1348                  // Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
1349                  $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
1350                  break;
1351              case 'NCTH': // Nikon Camera THumbnail image
1352              case 'NCVW': // Nikon Camera preVieW image
1353                  // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1354                  if (preg_match('/^\xFF\xD8\xFF/', $atom_data)) {
1355                      $atom_structure['data'] = $atom_data;
1356                      $atom_structure['image_mime'] = 'image/jpeg';
1357                      $atom_structure['description'] = (($atomname == 'NCTH') ? 'Nikon Camera Thumbnail Image' : (($atomname == 'NCVW') ? 'Nikon Camera Preview Image' : 'Nikon preview image'));
1358                      $info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_data, 'description'=>$atom_structure['description']);
1359                  }
1360                  break;
1361              case 'NCHD': // MakerNoteVersion
1362                  // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1363                  $atom_structure['data'] = $atom_data;
1364                  break;
1365              case 'NCTG': // NikonTags
1366                  // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
1367                  $atom_structure['data'] = $this->QuicktimeParseNikonNCTG($atom_data);
1368                  break;
1369              case 'NCDB': // NikonTags
1370                  // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1371                  $atom_structure['data'] = $atom_data;
1372                  break;
1373  
1374              case "\x00\x00\x00\x00":
1375              case 'meta': // METAdata atom
1376                  // some kind of metacontainer, may contain a big data dump such as:
1377                  // mdta keys  mdtacom.apple.quicktime.make (mdtacom.apple.quicktime.creationdate ,mdtacom.apple.quicktime.location.ISO6709 $mdtacom.apple.quicktime.software !mdtacom.apple.quicktime.model ilst   data DEApple 0  (data DE2011-05-11T17:54:04+0200 2  *data DE+52.4936+013.3897+040.247/   data DE4.3.1  data DEiPhone 4
1378                  // http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
1379  
1380                  $atom_structure['version']   =          getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
1381                  $atom_structure['flags_raw'] =          getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
1382                  $atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom(substr($atom_data, 4), $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1383                  //$atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1384                  break;
1385  
1386              case 'data': // metaDATA atom
1387                  // seems to be 2 bytes language code (ASCII), 2 bytes unknown (set to 0x10B5 in sample I have), remainder is useful data
1388                  $atom_structure['language'] =                           substr($atom_data, 4 + 0, 2);
1389                  $atom_structure['unknown']  = getid3_lib::BigEndian2Int(substr($atom_data, 4 + 2, 2));
1390                  $atom_structure['data']     =                           substr($atom_data, 4 + 4);
1391                  break;
1392  
1393              default:
1394                  $info['warning'][] = 'Unknown QuickTime atom type: "'.$atomname.'" ('.trim(getid3_lib::PrintHexBytes($atomname)).') at offset '.$baseoffset;
1395                  $atom_structure['data'] = $atom_data;
1396                  break;
1397          }
1398          array_pop($atomHierarchy);
1399          return $atom_structure;
1400      }
1401  
1402  	public function QuicktimeParseContainerAtom($atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
1403  //echo 'QuicktimeParseContainerAtom('.substr($atom_data, 4, 4).') @ '.$baseoffset.'<br><br>';
1404          $atom_structure  = false;
1405          $subatomoffset  = 0;
1406          $subatomcounter = 0;
1407          if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {
1408              return false;
1409          }
1410          while ($subatomoffset < strlen($atom_data)) {
1411              $subatomsize = getid3_lib::BigEndian2Int(substr($atom_data, $subatomoffset + 0, 4));
1412              $subatomname =                           substr($atom_data, $subatomoffset + 4, 4);
1413              $subatomdata =                           substr($atom_data, $subatomoffset + 8, $subatomsize - 8);
1414              if ($subatomsize == 0) {
1415                  // Furthermore, for historical reasons the list of atoms is optionally
1416                  // terminated by a 32-bit integer set to 0. If you are writing a program
1417                  // to read user data atoms, you should allow for the terminating 0.
1418                  return $atom_structure;
1419              }
1420  
1421              $atom_structure[$subatomcounter] = $this->QuicktimeParseAtom($subatomname, $subatomsize, $subatomdata, $baseoffset + $subatomoffset, $atomHierarchy, $ParseAllPossibleAtoms);
1422  
1423              $subatomoffset += $subatomsize;
1424              $subatomcounter++;
1425          }
1426          return $atom_structure;
1427      }
1428  
1429  
1430  	public function quicktime_read_mp4_descr_length($data, &$offset) {
1431          // http://libquicktime.sourcearchive.com/documentation/2:1.0.2plus-pdebian-2build1/esds_8c-source.html
1432          $num_bytes = 0;
1433          $length    = 0;
1434          do {
1435              $b = ord(substr($data, $offset++, 1));
1436              $length = ($length << 7) | ($b & 0x7F);
1437          } while (($b & 0x80) && ($num_bytes++ < 4));
1438          return $length;
1439      }
1440  
1441  
1442  	public function QuicktimeLanguageLookup($languageid) {
1443          // http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-34353
1444          static $QuicktimeLanguageLookup = array();
1445          if (empty($QuicktimeLanguageLookup)) {
1446              $QuicktimeLanguageLookup[0]     = 'English';
1447              $QuicktimeLanguageLookup[1]     = 'French';
1448              $QuicktimeLanguageLookup[2]     = 'German';
1449              $QuicktimeLanguageLookup[3]     = 'Italian';
1450              $QuicktimeLanguageLookup[4]     = 'Dutch';
1451              $QuicktimeLanguageLookup[5]     = 'Swedish';
1452              $QuicktimeLanguageLookup[6]     = 'Spanish';
1453              $QuicktimeLanguageLookup[7]     = 'Danish';
1454              $QuicktimeLanguageLookup[8]     = 'Portuguese';
1455              $QuicktimeLanguageLookup[9]     = 'Norwegian';
1456              $QuicktimeLanguageLookup[10]    = 'Hebrew';
1457              $QuicktimeLanguageLookup[11]    = 'Japanese';
1458              $QuicktimeLanguageLookup[12]    = 'Arabic';
1459              $QuicktimeLanguageLookup[13]    = 'Finnish';
1460              $QuicktimeLanguageLookup[14]    = 'Greek';
1461              $QuicktimeLanguageLookup[15]    = 'Icelandic';
1462              $QuicktimeLanguageLookup[16]    = 'Maltese';
1463              $QuicktimeLanguageLookup[17]    = 'Turkish';
1464              $QuicktimeLanguageLookup[18]    = 'Croatian';
1465              $QuicktimeLanguageLookup[19]    = 'Chinese (Traditional)';
1466              $QuicktimeLanguageLookup[20]    = 'Urdu';
1467              $QuicktimeLanguageLookup[21]    = 'Hindi';
1468              $QuicktimeLanguageLookup[22]    = 'Thai';
1469              $QuicktimeLanguageLookup[23]    = 'Korean';
1470              $QuicktimeLanguageLookup[24]    = 'Lithuanian';
1471              $QuicktimeLanguageLookup[25]    = 'Polish';
1472              $QuicktimeLanguageLookup[26]    = 'Hungarian';
1473              $QuicktimeLanguageLookup[27]    = 'Estonian';
1474              $QuicktimeLanguageLookup[28]    = 'Lettish';
1475              $QuicktimeLanguageLookup[28]    = 'Latvian';
1476              $QuicktimeLanguageLookup[29]    = 'Saamisk';
1477              $QuicktimeLanguageLookup[29]    = 'Lappish';
1478              $QuicktimeLanguageLookup[30]    = 'Faeroese';
1479              $QuicktimeLanguageLookup[31]    = 'Farsi';
1480              $QuicktimeLanguageLookup[31]    = 'Persian';
1481              $QuicktimeLanguageLookup[32]    = 'Russian';
1482              $QuicktimeLanguageLookup[33]    = 'Chinese (Simplified)';
1483              $QuicktimeLanguageLookup[34]    = 'Flemish';
1484              $QuicktimeLanguageLookup[35]    = 'Irish';
1485              $QuicktimeLanguageLookup[36]    = 'Albanian';
1486              $QuicktimeLanguageLookup[37]    = 'Romanian';
1487              $QuicktimeLanguageLookup[38]    = 'Czech';
1488              $QuicktimeLanguageLookup[39]    = 'Slovak';
1489              $QuicktimeLanguageLookup[40]    = 'Slovenian';
1490              $QuicktimeLanguageLookup[41]    = 'Yiddish';
1491              $QuicktimeLanguageLookup[42]    = 'Serbian';
1492              $QuicktimeLanguageLookup[43]    = 'Macedonian';
1493              $QuicktimeLanguageLookup[44]    = 'Bulgarian';
1494              $QuicktimeLanguageLookup[45]    = 'Ukrainian';
1495              $QuicktimeLanguageLookup[46]    = 'Byelorussian';
1496              $QuicktimeLanguageLookup[47]    = 'Uzbek';
1497              $QuicktimeLanguageLookup[48]    = 'Kazakh';
1498              $QuicktimeLanguageLookup[49]    = 'Azerbaijani';
1499              $QuicktimeLanguageLookup[50]    = 'AzerbaijanAr';
1500              $QuicktimeLanguageLookup[51]    = 'Armenian';
1501              $QuicktimeLanguageLookup[52]    = 'Georgian';
1502              $QuicktimeLanguageLookup[53]    = 'Moldavian';
1503              $QuicktimeLanguageLookup[54]    = 'Kirghiz';
1504              $QuicktimeLanguageLookup[55]    = 'Tajiki';
1505              $QuicktimeLanguageLookup[56]    = 'Turkmen';
1506              $QuicktimeLanguageLookup[57]    = 'Mongolian';
1507              $QuicktimeLanguageLookup[58]    = 'MongolianCyr';
1508              $QuicktimeLanguageLookup[59]    = 'Pashto';
1509              $QuicktimeLanguageLookup[60]    = 'Kurdish';
1510              $QuicktimeLanguageLookup[61]    = 'Kashmiri';
1511              $QuicktimeLanguageLookup[62]    = 'Sindhi';
1512              $QuicktimeLanguageLookup[63]    = 'Tibetan';
1513              $QuicktimeLanguageLookup[64]    = 'Nepali';
1514              $QuicktimeLanguageLookup[65]    = 'Sanskrit';
1515              $QuicktimeLanguageLookup[66]    = 'Marathi';
1516              $QuicktimeLanguageLookup[67]    = 'Bengali';
1517              $QuicktimeLanguageLookup[68]    = 'Assamese';
1518              $QuicktimeLanguageLookup[69]    = 'Gujarati';
1519              $QuicktimeLanguageLookup[70]    = 'Punjabi';
1520              $QuicktimeLanguageLookup[71]    = 'Oriya';
1521              $QuicktimeLanguageLookup[72]    = 'Malayalam';
1522              $QuicktimeLanguageLookup[73]    = 'Kannada';
1523              $QuicktimeLanguageLookup[74]    = 'Tamil';
1524              $QuicktimeLanguageLookup[75]    = 'Telugu';
1525              $QuicktimeLanguageLookup[76]    = 'Sinhalese';
1526              $QuicktimeLanguageLookup[77]    = 'Burmese';
1527              $QuicktimeLanguageLookup[78]    = 'Khmer';
1528              $QuicktimeLanguageLookup[79]    = 'Lao';
1529              $QuicktimeLanguageLookup[80]    = 'Vietnamese';
1530              $QuicktimeLanguageLookup[81]    = 'Indonesian';
1531              $QuicktimeLanguageLookup[82]    = 'Tagalog';
1532              $QuicktimeLanguageLookup[83]    = 'MalayRoman';
1533              $QuicktimeLanguageLookup[84]    = 'MalayArabic';
1534              $QuicktimeLanguageLookup[85]    = 'Amharic';
1535              $QuicktimeLanguageLookup[86]    = 'Tigrinya';
1536              $QuicktimeLanguageLookup[87]    = 'Galla';
1537              $QuicktimeLanguageLookup[87]    = 'Oromo';
1538              $QuicktimeLanguageLookup[88]    = 'Somali';
1539              $QuicktimeLanguageLookup[89]    = 'Swahili';
1540              $QuicktimeLanguageLookup[90]    = 'Ruanda';
1541              $QuicktimeLanguageLookup[91]    = 'Rundi';
1542              $QuicktimeLanguageLookup[92]    = 'Chewa';
1543              $QuicktimeLanguageLookup[93]    = 'Malagasy';
1544              $QuicktimeLanguageLookup[94]    = 'Esperanto';
1545              $QuicktimeLanguageLookup[128]   = 'Welsh';
1546              $QuicktimeLanguageLookup[129]   = 'Basque';
1547              $QuicktimeLanguageLookup[130]   = 'Catalan';
1548              $QuicktimeLanguageLookup[131]   = 'Latin';
1549              $QuicktimeLanguageLookup[132]   = 'Quechua';
1550              $QuicktimeLanguageLookup[133]   = 'Guarani';
1551              $QuicktimeLanguageLookup[134]   = 'Aymara';
1552              $QuicktimeLanguageLookup[135]   = 'Tatar';
1553              $QuicktimeLanguageLookup[136]   = 'Uighur';
1554              $QuicktimeLanguageLookup[137]   = 'Dzongkha';
1555              $QuicktimeLanguageLookup[138]   = 'JavaneseRom';
1556              $QuicktimeLanguageLookup[32767] = 'Unspecified';
1557          }
1558          if (($languageid > 138) && ($languageid < 32767)) {
1559              /*
1560              ISO Language Codes - http://www.loc.gov/standards/iso639-2/php/code_list.php
1561              Because the language codes specified by ISO 639-2/T are three characters long, they must be packed to fit into a 16-bit field.
1562              The packing algorithm must map each of the three characters, which are always lowercase, into a 5-bit integer and then concatenate
1563              these integers into the least significant 15 bits of a 16-bit integer, leaving the 16-bit integer's most significant bit set to zero.
1564  
1565              One algorithm for performing this packing is to treat each ISO character as a 16-bit integer. Subtract 0x60 from the first character
1566              and multiply by 2^10 (0x400), subtract 0x60 from the second character and multiply by 2^5 (0x20), subtract 0x60 from the third character,
1567              and add the three 16-bit values. This will result in a single 16-bit value with the three codes correctly packed into the 15 least
1568              significant bits and the most significant bit set to zero.
1569              */
1570              $iso_language_id  = '';
1571              $iso_language_id .= chr((($languageid & 0x7C00) >> 10) + 0x60);
1572              $iso_language_id .= chr((($languageid & 0x03E0) >>  5) + 0x60);
1573              $iso_language_id .= chr((($languageid & 0x001F) >>  0) + 0x60);
1574              $QuicktimeLanguageLookup[$languageid] = getid3_id3v2::LanguageLookup($iso_language_id);
1575          }
1576          return (isset($QuicktimeLanguageLookup[$languageid]) ? $QuicktimeLanguageLookup[$languageid] : 'invalid');
1577      }
1578  
1579  	public function QuicktimeVideoCodecLookup($codecid) {
1580          static $QuicktimeVideoCodecLookup = array();
1581          if (empty($QuicktimeVideoCodecLookup)) {
1582              $QuicktimeVideoCodecLookup['.SGI'] = 'SGI';
1583              $QuicktimeVideoCodecLookup['3IV1'] = '3ivx MPEG-4 v1';
1584              $QuicktimeVideoCodecLookup['3IV2'] = '3ivx MPEG-4 v2';
1585              $QuicktimeVideoCodecLookup['3IVX'] = '3ivx MPEG-4';
1586              $QuicktimeVideoCodecLookup['8BPS'] = 'Planar RGB';
1587              $QuicktimeVideoCodecLookup['avc1'] = 'H.264/MPEG-4 AVC';
1588              $QuicktimeVideoCodecLookup['avr '] = 'AVR-JPEG';
1589              $QuicktimeVideoCodecLookup['b16g'] = '16Gray';
1590              $QuicktimeVideoCodecLookup['b32a'] = '32AlphaGray';
1591              $QuicktimeVideoCodecLookup['b48r'] = '48RGB';
1592              $QuicktimeVideoCodecLookup['b64a'] = '64ARGB';
1593              $QuicktimeVideoCodecLookup['base'] = 'Base';
1594              $QuicktimeVideoCodecLookup['clou'] = 'Cloud';
1595              $QuicktimeVideoCodecLookup['cmyk'] = 'CMYK';
1596              $QuicktimeVideoCodecLookup['cvid'] = 'Cinepak';
1597              $QuicktimeVideoCodecLookup['dmb1'] = 'OpenDML JPEG';
1598              $QuicktimeVideoCodecLookup['dvc '] = 'DVC-NTSC';
1599              $QuicktimeVideoCodecLookup['dvcp'] = 'DVC-PAL';
1600              $QuicktimeVideoCodecLookup['dvpn'] = 'DVCPro-NTSC';
1601              $QuicktimeVideoCodecLookup['dvpp'] = 'DVCPro-PAL';
1602              $QuicktimeVideoCodecLookup['fire'] = 'Fire';
1603              $QuicktimeVideoCodecLookup['flic'] = 'FLC';
1604              $QuicktimeVideoCodecLookup['gif '] = 'GIF';
1605              $QuicktimeVideoCodecLookup['h261'] = 'H261';
1606              $QuicktimeVideoCodecLookup['h263'] = 'H263';
1607              $QuicktimeVideoCodecLookup['IV41'] = 'Indeo4';
1608              $QuicktimeVideoCodecLookup['jpeg'] = 'JPEG';
1609              $QuicktimeVideoCodecLookup['kpcd'] = 'PhotoCD';
1610              $QuicktimeVideoCodecLookup['mjpa'] = 'Motion JPEG-A';
1611              $QuicktimeVideoCodecLookup['mjpb'] = 'Motion JPEG-B';
1612              $QuicktimeVideoCodecLookup['msvc'] = 'Microsoft Video1';
1613              $QuicktimeVideoCodecLookup['myuv'] = 'MPEG YUV420';
1614              $QuicktimeVideoCodecLookup['path'] = 'Vector';
1615              $QuicktimeVideoCodecLookup['png '] = 'PNG';
1616              $QuicktimeVideoCodecLookup['PNTG'] = 'MacPaint';
1617              $QuicktimeVideoCodecLookup['qdgx'] = 'QuickDrawGX';
1618              $QuicktimeVideoCodecLookup['qdrw'] = 'QuickDraw';
1619              $QuicktimeVideoCodecLookup['raw '] = 'RAW';
1620              $QuicktimeVideoCodecLookup['ripl'] = 'WaterRipple';
1621              $QuicktimeVideoCodecLookup['rpza'] = 'Video';
1622              $QuicktimeVideoCodecLookup['smc '] = 'Graphics';
1623              $QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 1';
1624              $QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 3';
1625              $QuicktimeVideoCodecLookup['syv9'] = 'Sorenson YUV9';
1626              $QuicktimeVideoCodecLookup['tga '] = 'Targa';
1627              $QuicktimeVideoCodecLookup['tiff'] = 'TIFF';
1628              $QuicktimeVideoCodecLookup['WRAW'] = 'Windows RAW';
1629              $QuicktimeVideoCodecLookup['WRLE'] = 'BMP';
1630              $QuicktimeVideoCodecLookup['y420'] = 'YUV420';
1631              $QuicktimeVideoCodecLookup['yuv2'] = 'ComponentVideo';
1632              $QuicktimeVideoCodecLookup['yuvs'] = 'ComponentVideoUnsigned';
1633              $QuicktimeVideoCodecLookup['yuvu'] = 'ComponentVideoSigned';
1634          }
1635          return (isset($QuicktimeVideoCodecLookup[$codecid]) ? $QuicktimeVideoCodecLookup[$codecid] : '');
1636      }
1637  
1638  	public function QuicktimeAudioCodecLookup($codecid) {
1639          static $QuicktimeAudioCodecLookup = array();
1640          if (empty($QuicktimeAudioCodecLookup)) {
1641              $QuicktimeAudioCodecLookup['.mp3']          = 'Fraunhofer MPEG Layer-III alias';
1642              $QuicktimeAudioCodecLookup['aac ']          = 'ISO/IEC 14496-3 AAC';
1643              $QuicktimeAudioCodecLookup['agsm']          = 'Apple GSM 10:1';
1644              $QuicktimeAudioCodecLookup['alac']          = 'Apple Lossless Audio Codec';
1645              $QuicktimeAudioCodecLookup['alaw']          = 'A-law 2:1';
1646              $QuicktimeAudioCodecLookup['conv']          = 'Sample Format';
1647              $QuicktimeAudioCodecLookup['dvca']          = 'DV';
1648              $QuicktimeAudioCodecLookup['dvi ']          = 'DV 4:1';
1649              $QuicktimeAudioCodecLookup['eqal']          = 'Frequency Equalizer';
1650              $QuicktimeAudioCodecLookup['fl32']          = '32-bit Floating Point';
1651              $QuicktimeAudioCodecLookup['fl64']          = '64-bit Floating Point';
1652              $QuicktimeAudioCodecLookup['ima4']          = 'Interactive Multimedia Association 4:1';
1653              $QuicktimeAudioCodecLookup['in24']          = '24-bit Integer';
1654              $QuicktimeAudioCodecLookup['in32']          = '32-bit Integer';
1655              $QuicktimeAudioCodecLookup['lpc ']          = 'LPC 23:1';
1656              $QuicktimeAudioCodecLookup['MAC3']          = 'Macintosh Audio Compression/Expansion (MACE) 3:1';
1657              $QuicktimeAudioCodecLookup['MAC6']          = 'Macintosh Audio Compression/Expansion (MACE) 6:1';
1658              $QuicktimeAudioCodecLookup['mixb']          = '8-bit Mixer';
1659              $QuicktimeAudioCodecLookup['mixw']          = '16-bit Mixer';
1660              $QuicktimeAudioCodecLookup['mp4a']          = 'ISO/IEC 14496-3 AAC';
1661              $QuicktimeAudioCodecLookup['MS'."\x00\x02"] = 'Microsoft ADPCM';
1662              $QuicktimeAudioCodecLookup['MS'."\x00\x11"] = 'DV IMA';
1663              $QuicktimeAudioCodecLookup['MS'."\x00\x55"] = 'Fraunhofer MPEG Layer III';
1664              $QuicktimeAudioCodecLookup['NONE']          = 'No Encoding';
1665              $QuicktimeAudioCodecLookup['Qclp']          = 'Qualcomm PureVoice';
1666              $QuicktimeAudioCodecLookup['QDM2']          = 'QDesign Music 2';
1667              $QuicktimeAudioCodecLookup['QDMC']          = 'QDesign Music 1';
1668              $QuicktimeAudioCodecLookup['ratb']          = '8-bit Rate';
1669              $QuicktimeAudioCodecLookup['ratw']          = '16-bit Rate';
1670              $QuicktimeAudioCodecLookup['raw ']          = 'raw PCM';
1671              $QuicktimeAudioCodecLookup['sour']          = 'Sound Source';
1672              $QuicktimeAudioCodecLookup['sowt']          = 'signed/two\'s complement (Little Endian)';
1673              $QuicktimeAudioCodecLookup['str1']          = 'Iomega MPEG layer II';
1674              $QuicktimeAudioCodecLookup['str2']          = 'Iomega MPEG *layer II';
1675              $QuicktimeAudioCodecLookup['str3']          = 'Iomega MPEG **layer II';
1676              $QuicktimeAudioCodecLookup['str4']          = 'Iomega MPEG ***layer II';
1677              $QuicktimeAudioCodecLookup['twos']          = 'signed/two\'s complement (Big Endian)';
1678              $QuicktimeAudioCodecLookup['ulaw']          = 'mu-law 2:1';
1679          }
1680          return (isset($QuicktimeAudioCodecLookup[$codecid]) ? $QuicktimeAudioCodecLookup[$codecid] : '');
1681      }
1682  
1683  	public function QuicktimeDCOMLookup($compressionid) {
1684          static $QuicktimeDCOMLookup = array();
1685          if (empty($QuicktimeDCOMLookup)) {
1686              $QuicktimeDCOMLookup['zlib'] = 'ZLib Deflate';
1687              $QuicktimeDCOMLookup['adec'] = 'Apple Compression';
1688          }
1689          return (isset($QuicktimeDCOMLookup[$compressionid]) ? $QuicktimeDCOMLookup[$compressionid] : '');
1690      }
1691  
1692  	public function QuicktimeColorNameLookup($colordepthid) {
1693          static $QuicktimeColorNameLookup = array();
1694          if (empty($QuicktimeColorNameLookup)) {
1695              $QuicktimeColorNameLookup[1]  = '2-color (monochrome)';
1696              $QuicktimeColorNameLookup[2]  = '4-color';
1697              $QuicktimeColorNameLookup[4]  = '16-color';
1698              $QuicktimeColorNameLookup[8]  = '256-color';
1699              $QuicktimeColorNameLookup[16] = 'thousands (16-bit color)';
1700              $QuicktimeColorNameLookup[24] = 'millions (24-bit color)';
1701              $QuicktimeColorNameLookup[32] = 'millions+ (32-bit color)';
1702              $QuicktimeColorNameLookup[33] = 'black & white';
1703              $QuicktimeColorNameLookup[34] = '4-gray';
1704              $QuicktimeColorNameLookup[36] = '16-gray';
1705              $QuicktimeColorNameLookup[40] = '256-gray';
1706          }
1707          return (isset($QuicktimeColorNameLookup[$colordepthid]) ? $QuicktimeColorNameLookup[$colordepthid] : 'invalid');
1708      }
1709  
1710  	public function QuicktimeSTIKLookup($stik) {
1711          static $QuicktimeSTIKLookup = array();
1712          if (empty($QuicktimeSTIKLookup)) {
1713              $QuicktimeSTIKLookup[0]  = 'Movie';
1714              $QuicktimeSTIKLookup[1]  = 'Normal';
1715              $QuicktimeSTIKLookup[2]  = 'Audiobook';
1716              $QuicktimeSTIKLookup[5]  = 'Whacked Bookmark';
1717              $QuicktimeSTIKLookup[6]  = 'Music Video';
1718              $QuicktimeSTIKLookup[9]  = 'Short Film';
1719              $QuicktimeSTIKLookup[10] = 'TV Show';
1720              $QuicktimeSTIKLookup[11] = 'Booklet';
1721              $QuicktimeSTIKLookup[14] = 'Ringtone';
1722              $QuicktimeSTIKLookup[21] = 'Podcast';
1723          }
1724          return (isset($QuicktimeSTIKLookup[$stik]) ? $QuicktimeSTIKLookup[$stik] : 'invalid');
1725      }
1726  
1727  	public function QuicktimeIODSaudioProfileName($audio_profile_id) {
1728          static $QuicktimeIODSaudioProfileNameLookup = array();
1729          if (empty($QuicktimeIODSaudioProfileNameLookup)) {
1730              $QuicktimeIODSaudioProfileNameLookup = array(
1731                  0x00 => 'ISO Reserved (0x00)',
1732                  0x01 => 'Main Audio Profile @ Level 1',
1733                  0x02 => 'Main Audio Profile @ Level 2',
1734                  0x03 => 'Main Audio Profile @ Level 3',
1735                  0x04 => 'Main Audio Profile @ Level 4',
1736                  0x05 => 'Scalable Audio Profile @ Level 1',
1737                  0x06 => 'Scalable Audio Profile @ Level 2',
1738                  0x07 => 'Scalable Audio Profile @ Level 3',
1739                  0x08 => 'Scalable Audio Profile @ Level 4',
1740                  0x09 => 'Speech Audio Profile @ Level 1',
1741                  0x0A => 'Speech Audio Profile @ Level 2',
1742                  0x0B => 'Synthetic Audio Profile @ Level 1',
1743                  0x0C => 'Synthetic Audio Profile @ Level 2',
1744                  0x0D => 'Synthetic Audio Profile @ Level 3',
1745                  0x0E => 'High Quality Audio Profile @ Level 1',
1746                  0x0F => 'High Quality Audio Profile @ Level 2',
1747                  0x10 => 'High Quality Audio Profile @ Level 3',
1748                  0x11 => 'High Quality Audio Profile @ Level 4',
1749                  0x12 => 'High Quality Audio Profile @ Level 5',
1750                  0x13 => 'High Quality Audio Profile @ Level 6',
1751                  0x14 => 'High Quality Audio Profile @ Level 7',
1752                  0x15 => 'High Quality Audio Profile @ Level 8',
1753                  0x16 => 'Low Delay Audio Profile @ Level 1',
1754                  0x17 => 'Low Delay Audio Profile @ Level 2',
1755                  0x18 => 'Low Delay Audio Profile @ Level 3',
1756                  0x19 => 'Low Delay Audio Profile @ Level 4',
1757                  0x1A => 'Low Delay Audio Profile @ Level 5',
1758                  0x1B => 'Low Delay Audio Profile @ Level 6',
1759                  0x1C => 'Low Delay Audio Profile @ Level 7',
1760                  0x1D => 'Low Delay Audio Profile @ Level 8',
1761                  0x1E => 'Natural Audio Profile @ Level 1',
1762                  0x1F => 'Natural Audio Profile @ Level 2',
1763                  0x20 => 'Natural Audio Profile @ Level 3',
1764                  0x21 => 'Natural Audio Profile @ Level 4',
1765                  0x22 => 'Mobile Audio Internetworking Profile @ Level 1',
1766                  0x23 => 'Mobile Audio Internetworking Profile @ Level 2',
1767                  0x24 => 'Mobile Audio Internetworking Profile @ Level 3',
1768                  0x25 => 'Mobile Audio Internetworking Profile @ Level 4',
1769                  0x26 => 'Mobile Audio Internetworking Profile @ Level 5',
1770                  0x27 => 'Mobile Audio Internetworking Profile @ Level 6',
1771                  0x28 => 'AAC Profile @ Level 1',
1772                  0x29 => 'AAC Profile @ Level 2',
1773                  0x2A => 'AAC Profile @ Level 4',
1774                  0x2B => 'AAC Profile @ Level 5',
1775                  0x2C => 'High Efficiency AAC Profile @ Level 2',
1776                  0x2D => 'High Efficiency AAC Profile @ Level 3',
1777                  0x2E => 'High Efficiency AAC Profile @ Level 4',
1778                  0x2F => 'High Efficiency AAC Profile @ Level 5',
1779                  0xFE => 'Not part of MPEG-4 audio profiles',
1780                  0xFF => 'No audio capability required',
1781              );
1782          }
1783          return (isset($QuicktimeIODSaudioProfileNameLookup[$audio_profile_id]) ? $QuicktimeIODSaudioProfileNameLookup[$audio_profile_id] : 'ISO Reserved / User Private');
1784      }
1785  
1786  
1787  	public function QuicktimeIODSvideoProfileName($video_profile_id) {
1788          static $QuicktimeIODSvideoProfileNameLookup = array();
1789          if (empty($QuicktimeIODSvideoProfileNameLookup)) {
1790              $QuicktimeIODSvideoProfileNameLookup = array(
1791                  0x00 => 'Reserved (0x00) Profile',
1792                  0x01 => 'Simple Profile @ Level 1',
1793                  0x02 => 'Simple Profile @ Level 2',
1794                  0x03 => 'Simple Profile @ Level 3',
1795                  0x08 => 'Simple Profile @ Level 0',
1796                  0x10 => 'Simple Scalable Profile @ Level 0',
1797                  0x11 => 'Simple Scalable Profile @ Level 1',
1798                  0x12 => 'Simple Scalable Profile @ Level 2',
1799                  0x15 => 'AVC/H264 Profile',
1800                  0x21 => 'Core Profile @ Level 1',
1801                  0x22 => 'Core Profile @ Level 2',
1802                  0x32 => 'Main Profile @ Level 2',
1803                  0x33 => 'Main Profile @ Level 3',
1804                  0x34 => 'Main Profile @ Level 4',
1805                  0x42 => 'N-bit Profile @ Level 2',
1806                  0x51 => 'Scalable Texture Profile @ Level 1',
1807                  0x61 => 'Simple Face Animation Profile @ Level 1',
1808                  0x62 => 'Simple Face Animation Profile @ Level 2',
1809                  0x63 => 'Simple FBA Profile @ Level 1',
1810                  0x64 => 'Simple FBA Profile @ Level 2',
1811                  0x71 => 'Basic Animated Texture Profile @ Level 1',
1812                  0x72 => 'Basic Animated Texture Profile @ Level 2',
1813                  0x81 => 'Hybrid Profile @ Level 1',
1814                  0x82 => 'Hybrid Profile @ Level 2',
1815                  0x91 => 'Advanced Real Time Simple Profile @ Level 1',
1816                  0x92 => 'Advanced Real Time Simple Profile @ Level 2',
1817                  0x93 => 'Advanced Real Time Simple Profile @ Level 3',
1818                  0x94 => 'Advanced Real Time Simple Profile @ Level 4',
1819                  0xA1 => 'Core Scalable Profile @ Level1',
1820                  0xA2 => 'Core Scalable Profile @ Level2',
1821                  0xA3 => 'Core Scalable Profile @ Level3',
1822                  0xB1 => 'Advanced Coding Efficiency Profile @ Level 1',
1823                  0xB2 => 'Advanced Coding Efficiency Profile @ Level 2',
1824                  0xB3 => 'Advanced Coding Efficiency Profile @ Level 3',
1825                  0xB4 => 'Advanced Coding Efficiency Profile @ Level 4',
1826                  0xC1 => 'Advanced Core Profile @ Level 1',
1827                  0xC2 => 'Advanced Core Profile @ Level 2',
1828                  0xD1 => 'Advanced Scalable Texture @ Level1',
1829                  0xD2 => 'Advanced Scalable Texture @ Level2',
1830                  0xE1 => 'Simple Studio Profile @ Level 1',
1831                  0xE2 => 'Simple Studio Profile @ Level 2',
1832                  0xE3 => 'Simple Studio Profile @ Level 3',
1833                  0xE4 => 'Simple Studio Profile @ Level 4',
1834                  0xE5 => 'Core Studio Profile @ Level 1',
1835                  0xE6 => 'Core Studio Profile @ Level 2',
1836                  0xE7 => 'Core Studio Profile @ Level 3',
1837                  0xE8 => 'Core Studio Profile @ Level 4',
1838                  0xF0 => 'Advanced Simple Profile @ Level 0',
1839                  0xF1 => 'Advanced Simple Profile @ Level 1',
1840                  0xF2 => 'Advanced Simple Profile @ Level 2',
1841                  0xF3 => 'Advanced Simple Profile @ Level 3',
1842                  0xF4 => 'Advanced Simple Profile @ Level 4',
1843                  0xF5 => 'Advanced Simple Profile @ Level 5',
1844                  0xF7 => 'Advanced Simple Profile @ Level 3b',
1845                  0xF8 => 'Fine Granularity Scalable Profile @ Level 0',
1846                  0xF9 => 'Fine Granularity Scalable Profile @ Level 1',
1847                  0xFA => 'Fine Granularity Scalable Profile @ Level 2',
1848                  0xFB => 'Fine Granularity Scalable Profile @ Level 3',
1849                  0xFC => 'Fine Granularity Scalable Profile @ Level 4',
1850                  0xFD => 'Fine Granularity Scalable Profile @ Level 5',
1851                  0xFE => 'Not part of MPEG-4 Visual profiles',
1852                  0xFF => 'No visual capability required',
1853              );
1854          }
1855          return (isset($QuicktimeIODSvideoProfileNameLookup[$video_profile_id]) ? $QuicktimeIODSvideoProfileNameLookup[$video_profile_id] : 'ISO Reserved Profile');
1856      }
1857  
1858  
1859  	public function QuicktimeContentRatingLookup($rtng) {
1860          static $QuicktimeContentRatingLookup = array();
1861          if (empty($QuicktimeContentRatingLookup)) {
1862              $QuicktimeContentRatingLookup[0]  = 'None';
1863              $QuicktimeContentRatingLookup[2]  = 'Clean';
1864              $QuicktimeContentRatingLookup[4]  = 'Explicit';
1865          }
1866          return (isset($QuicktimeContentRatingLookup[$rtng]) ? $QuicktimeContentRatingLookup[$rtng] : 'invalid');
1867      }
1868  
1869  	public function QuicktimeStoreAccountTypeLookup($akid) {
1870          static $QuicktimeStoreAccountTypeLookup = array();
1871          if (empty($QuicktimeStoreAccountTypeLookup)) {
1872              $QuicktimeStoreAccountTypeLookup[0] = 'iTunes';
1873              $QuicktimeStoreAccountTypeLookup[1] = 'AOL';
1874          }
1875          return (isset($QuicktimeStoreAccountTypeLookup[$akid]) ? $QuicktimeStoreAccountTypeLookup[$akid] : 'invalid');
1876      }
1877  
1878  	public function QuicktimeStoreFrontCodeLookup($sfid) {
1879          static $QuicktimeStoreFrontCodeLookup = array();
1880          if (empty($QuicktimeStoreFrontCodeLookup)) {
1881              $QuicktimeStoreFrontCodeLookup[143460] = 'Australia';
1882              $QuicktimeStoreFrontCodeLookup[143445] = 'Austria';
1883              $QuicktimeStoreFrontCodeLookup[143446] = 'Belgium';
1884              $QuicktimeStoreFrontCodeLookup[143455] = 'Canada';
1885              $QuicktimeStoreFrontCodeLookup[143458] = 'Denmark';
1886              $QuicktimeStoreFrontCodeLookup[143447] = 'Finland';
1887              $QuicktimeStoreFrontCodeLookup[143442] = 'France';
1888              $QuicktimeStoreFrontCodeLookup[143443] = 'Germany';
1889              $QuicktimeStoreFrontCodeLookup[143448] = 'Greece';
1890              $QuicktimeStoreFrontCodeLookup[143449] = 'Ireland';
1891              $QuicktimeStoreFrontCodeLookup[143450] = 'Italy';
1892              $QuicktimeStoreFrontCodeLookup[143462] = 'Japan';
1893              $QuicktimeStoreFrontCodeLookup[143451] = 'Luxembourg';
1894              $QuicktimeStoreFrontCodeLookup[143452] = 'Netherlands';
1895              $QuicktimeStoreFrontCodeLookup[143461] = 'New Zealand';
1896              $QuicktimeStoreFrontCodeLookup[143457] = 'Norway';
1897              $QuicktimeStoreFrontCodeLookup[143453] = 'Portugal';
1898              $QuicktimeStoreFrontCodeLookup[143454] = 'Spain';
1899              $QuicktimeStoreFrontCodeLookup[143456] = 'Sweden';
1900              $QuicktimeStoreFrontCodeLookup[143459] = 'Switzerland';
1901              $QuicktimeStoreFrontCodeLookup[143444] = 'United Kingdom';
1902              $QuicktimeStoreFrontCodeLookup[143441] = 'United States';
1903          }
1904          return (isset($QuicktimeStoreFrontCodeLookup[$sfid]) ? $QuicktimeStoreFrontCodeLookup[$sfid] : 'invalid');
1905      }
1906  
1907  	public function QuicktimeParseNikonNCTG($atom_data) {
1908          // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
1909          // Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
1910          // Data is stored as records of:
1911          // * 4 bytes record type
1912          // * 2 bytes size of data field type:
1913          //     0x0001 = flag   (size field *= 1-byte)
1914          //     0x0002 = char   (size field *= 1-byte)
1915          //     0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
1916          //     0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
1917          //     0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
1918          //     0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
1919          //     0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
1920          // * 2 bytes data size field
1921          // * ? bytes data (string data may be null-padded; datestamp fields are in the format "2011:05:25 20:24:15")
1922          // all integers are stored BigEndian
1923  
1924          $NCTGtagName = array(
1925              0x00000001 => 'Make',
1926              0x00000002 => 'Model',
1927              0x00000003 => 'Software',
1928              0x00000011 => 'CreateDate',
1929              0x00000012 => 'DateTimeOriginal',
1930              0x00000013 => 'FrameCount',
1931              0x00000016 => 'FrameRate',
1932              0x00000022 => 'FrameWidth',
1933              0x00000023 => 'FrameHeight',
1934              0x00000032 => 'AudioChannels',
1935              0x00000033 => 'AudioBitsPerSample',
1936              0x00000034 => 'AudioSampleRate',
1937              0x02000001 => 'MakerNoteVersion',
1938              0x02000005 => 'WhiteBalance',
1939              0x0200000b => 'WhiteBalanceFineTune',
1940              0x0200001e => 'ColorSpace',
1941              0x02000023 => 'PictureControlData',
1942              0x02000024 => 'WorldTime',
1943              0x02000032 => 'UnknownInfo',
1944              0x02000083 => 'LensType',
1945              0x02000084 => 'Lens',
1946          );
1947  
1948          $offset = 0;
1949          $datalength = strlen($atom_data);
1950          $parsed = array();
1951          while ($offset < $datalength) {
1952  //echo getid3_lib::PrintHexBytes(substr($atom_data, $offset, 4)).'<br>';
1953              $record_type       = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));  $offset += 4;
1954              $data_size_type    = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
1955              $data_size         = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
1956              switch ($data_size_type) {
1957                  case 0x0001: // 0x0001 = flag   (size field *= 1-byte)
1958                      $data = getid3_lib::BigEndian2Int(substr($atom_data, $offset, $data_size * 1));
1959                      $offset += ($data_size * 1);
1960                      break;
1961                  case 0x0002: // 0x0002 = char   (size field *= 1-byte)
1962                      $data = substr($atom_data, $offset, $data_size * 1);
1963                      $offset += ($data_size * 1);
1964                      $data = rtrim($data, "\x00");
1965                      break;
1966                  case 0x0003: // 0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
1967                      $data = '';
1968                      for ($i = $data_size - 1; $i >= 0; $i--) {
1969                          $data .= substr($atom_data, $offset + ($i * 2), 2);
1970                      }
1971                      $data = getid3_lib::BigEndian2Int($data);
1972                      $offset += ($data_size * 2);
1973                      break;
1974                  case 0x0004: // 0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
1975                      $data = '';
1976                      for ($i = $data_size - 1; $i >= 0; $i--) {
1977                          $data .= substr($atom_data, $offset + ($i * 4), 4);
1978                      }
1979                      $data = getid3_lib::BigEndian2Int($data);
1980                      $offset += ($data_size * 4);
1981                      break;
1982                  case 0x0005: // 0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
1983                      $data = array();
1984                      for ($i = 0; $i < $data_size; $i++) {
1985                          $numerator    = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 0, 4));
1986                          $denomninator = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 4, 4));
1987                          if ($denomninator == 0) {
1988                              $data[$i] = false;
1989                          } else {
1990                              $data[$i] = (double) $numerator / $denomninator;
1991                          }
1992                      }
1993                      $offset += (8 * $data_size);
1994                      if (count($data) == 1) {
1995                          $data = $data[0];
1996                      }
1997                      break;
1998                  case 0x0007: // 0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
1999                      $data = substr($atom_data, $offset, $data_size * 1);
2000                      $offset += ($data_size * 1);
2001                      break;
2002                  case 0x0008: // 0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
2003                      $data = substr($atom_data, $offset, $data_size * 2);
2004                      $offset += ($data_size * 2);
2005                      break;
2006                  default:
2007  echo 'QuicktimeParseNikonNCTG()::unknown $data_size_type: '.$data_size_type.'<br>';
2008                      break 2;
2009              }
2010  
2011              switch ($record_type) {
2012                  case 0x00000011: // CreateDate
2013                  case 0x00000012: // DateTimeOriginal
2014                      $data = strtotime($data);
2015                      break;
2016                  case 0x0200001e: // ColorSpace
2017                      switch ($data) {
2018                          case 1:
2019                              $data = 'sRGB';
2020                              break;
2021                          case 2:
2022                              $data = 'Adobe RGB';
2023                              break;
2024                      }
2025                      break;
2026                  case 0x02000023: // PictureControlData
2027                      $PictureControlAdjust = array(0=>'default', 1=>'quick', 2=>'full');
2028                      $FilterEffect = array(0x80=>'off', 0x81=>'yellow', 0x82=>'orange',    0x83=>'red', 0x84=>'green',  0xff=>'n/a');
2029                      $ToningEffect = array(0x80=>'b&w', 0x81=>'sepia',  0x82=>'cyanotype', 0x83=>'red', 0x84=>'yellow', 0x85=>'green', 0x86=>'blue-green', 0x87=>'blue', 0x88=>'purple-blue', 0x89=>'red-purple', 0xff=>'n/a');
2030                      $data = array(
2031                          'PictureControlVersion'     =>                           substr($data,  0,  4),
2032                          'PictureControlName'        =>                     rtrim(substr($data,  4, 20), "\x00"),
2033                          'PictureControlBase'        =>                     rtrim(substr($data, 24, 20), "\x00"),
2034                          //'?'                       =>                           substr($data, 44,  4),
2035                          'PictureControlAdjust'      => $PictureControlAdjust[ord(substr($data, 48,  1))],
2036                          'PictureControlQuickAdjust' =>                       ord(substr($data, 49,  1)),
2037                          'Sharpness'                 =>                       ord(substr($data, 50,  1)),
2038                          'Contrast'                  =>                       ord(substr($data, 51,  1)),
2039                          'Brightness'                =>                       ord(substr($data, 52,  1)),
2040                          'Saturation'                =>                       ord(substr($data, 53,  1)),
2041                          'HueAdjustment'             =>                       ord(substr($data, 54,  1)),
2042                          'FilterEffect'              =>         $FilterEffect[ord(substr($data, 55,  1))],
2043                          'ToningEffect'              =>         $ToningEffect[ord(substr($data, 56,  1))],
2044                          'ToningSaturation'          =>                       ord(substr($data, 57,  1)),
2045                      );
2046                      break;
2047                  case 0x02000024: // WorldTime
2048                      // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#WorldTime
2049                      // timezone is stored as offset from GMT in minutes
2050                      $timezone = getid3_lib::BigEndian2Int(substr($data, 0, 2));
2051                      if ($timezone & 0x8000) {
2052                          $timezone = 0 - (0x10000 - $timezone);
2053                      }
2054                      $timezone /= 60;
2055  
2056                      $dst = (bool) getid3_lib::BigEndian2Int(substr($data, 2, 1));
2057                      switch (getid3_lib::BigEndian2Int(substr($data, 3, 1))) {
2058                          case 2:
2059                              $datedisplayformat = 'D/M/Y'; break;
2060                          case 1:
2061                              $datedisplayformat = 'M/D/Y'; break;
2062                          case 0:
2063                          default:
2064                              $datedisplayformat = 'Y/M/D'; break;
2065                      }
2066  
2067                      $data = array('timezone'=>floatval($timezone), 'dst'=>$dst, 'display'=>$datedisplayformat);
2068                      break;
2069                  case 0x02000083: // LensType
2070                      $data = array(
2071                          //'_'  => $data,
2072                          'mf' => (bool) ($data & 0x01),
2073                          'd'  => (bool) ($data & 0x02),
2074                          'g'  => (bool) ($data & 0x04),
2075                          'vr' => (bool) ($data & 0x08),
2076                      );
2077                      break;
2078              }
2079              $tag_name = (isset($NCTGtagName[$record_type]) ? $NCTGtagName[$record_type] : '0x'.str_pad(dechex($record_type), 8, '0', STR_PAD_LEFT));
2080              $parsed[$tag_name] = $data;
2081          }
2082          return $parsed;
2083      }
2084  
2085  
2086  	public function CopyToAppropriateCommentsSection($keyname, $data, $boxname='') {
2087          static $handyatomtranslatorarray = array();
2088          if (empty($handyatomtranslatorarray)) {
2089              $handyatomtranslatorarray['©cpy'] = 'copyright';
2090              $handyatomtranslatorarray['©day'] = 'creation_date';    // iTunes 4.0
2091              $handyatomtranslatorarray['©dir'] = 'director';
2092              $handyatomtranslatorarray['©ed1'] = 'edit1';
2093              $handyatomtranslatorarray['©ed2'] = 'edit2';
2094              $handyatomtranslatorarray['©ed3'] = 'edit3';
2095              $handyatomtranslatorarray['©ed4'] = 'edit4';
2096              $handyatomtranslatorarray['©ed5'] = 'edit5';
2097              $handyatomtranslatorarray['©ed6'] = 'edit6';
2098              $handyatomtranslatorarray['©ed7'] = 'edit7';
2099              $handyatomtranslatorarray['©ed8'] = 'edit8';
2100              $handyatomtranslatorarray['©ed9'] = 'edit9';
2101              $handyatomtranslatorarray['©fmt'] = 'format';
2102              $handyatomtranslatorarray['©inf'] = 'information';
2103              $handyatomtranslatorarray['©prd'] = 'producer';
2104              $handyatomtranslatorarray['©prf'] = 'performers';
2105              $handyatomtranslatorarray['©req'] = 'system_requirements';
2106              $handyatomtranslatorarray['©src'] = 'source_credit';
2107              $handyatomtranslatorarray['©wrt'] = 'writer';
2108  
2109              // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
2110              $handyatomtranslatorarray['©nam'] = 'title';           // iTunes 4.0
2111              $handyatomtranslatorarray['©cmt'] = 'comment';         // iTunes 4.0
2112              $handyatomtranslatorarray['©wrn'] = 'warning';
2113              $handyatomtranslatorarray['©hst'] = 'host_computer';
2114              $handyatomtranslatorarray['©mak'] = 'make';
2115              $handyatomtranslatorarray['©mod'] = 'model';
2116              $handyatomtranslatorarray['©PRD'] = 'product';
2117              $handyatomtranslatorarray['©swr'] = 'software';
2118              $handyatomtranslatorarray['©aut'] = 'author';
2119              $handyatomtranslatorarray['©ART'] = 'artist';
2120              $handyatomtranslatorarray['©trk'] = 'track';
2121              $handyatomtranslatorarray['©alb'] = 'album';           // iTunes 4.0
2122              $handyatomtranslatorarray['©com'] = 'comment';
2123              $handyatomtranslatorarray['©gen'] = 'genre';           // iTunes 4.0
2124              $handyatomtranslatorarray['©ope'] = 'composer';
2125              $handyatomtranslatorarray['©url'] = 'url';
2126              $handyatomtranslatorarray['©enc'] = 'encoder';
2127  
2128              // http://atomicparsley.sourceforge.net/mpeg-4files.html
2129              $handyatomtranslatorarray['©art'] = 'artist';           // iTunes 4.0
2130              $handyatomtranslatorarray['aART'] = 'album_artist';
2131              $handyatomtranslatorarray['trkn'] = 'track_number';     // iTunes 4.0
2132              $handyatomtranslatorarray['disk'] = 'disc_number';      // iTunes 4.0
2133              $handyatomtranslatorarray['gnre'] = 'genre';            // iTunes 4.0
2134              $handyatomtranslatorarray['©too'] = 'encoder';          // iTunes 4.0
2135              $handyatomtranslatorarray['tmpo'] = 'bpm';              // iTunes 4.0
2136              $handyatomtranslatorarray['cprt'] = 'copyright';        // iTunes 4.0?
2137              $handyatomtranslatorarray['cpil'] = 'compilation';      // iTunes 4.0
2138              $handyatomtranslatorarray['covr'] = 'picture';          // iTunes 4.0
2139              $handyatomtranslatorarray['rtng'] = 'rating';           // iTunes 4.0
2140              $handyatomtranslatorarray['©grp'] = 'grouping';         // iTunes 4.2
2141              $handyatomtranslatorarray['stik'] = 'stik';             // iTunes 4.9
2142              $handyatomtranslatorarray['pcst'] = 'podcast';          // iTunes 4.9
2143              $handyatomtranslatorarray['catg'] = 'category';         // iTunes 4.9
2144              $handyatomtranslatorarray['keyw'] = 'keyword';          // iTunes 4.9
2145              $handyatomtranslatorarray['purl'] = 'podcast_url';      // iTunes 4.9
2146              $handyatomtranslatorarray['egid'] = 'episode_guid';     // iTunes 4.9
2147              $handyatomtranslatorarray['desc'] = 'description';      // iTunes 5.0
2148              $handyatomtranslatorarray['©lyr'] = 'lyrics';           // iTunes 5.0
2149              $handyatomtranslatorarray['tvnn'] = 'tv_network_name';  // iTunes 6.0
2150              $handyatomtranslatorarray['tvsh'] = 'tv_show_name';     // iTunes 6.0
2151              $handyatomtranslatorarray['tvsn'] = 'tv_season';        // iTunes 6.0
2152              $handyatomtranslatorarray['tves'] = 'tv_episode';       // iTunes 6.0
2153              $handyatomtranslatorarray['purd'] = 'purchase_date';    // iTunes 6.0.2
2154              $handyatomtranslatorarray['pgap'] = 'gapless_playback'; // iTunes 7.0
2155  
2156              // http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt
2157  
2158  
2159  
2160              // boxnames:
2161              /*
2162              $handyatomtranslatorarray['iTunSMPB']                    = 'iTunSMPB';
2163              $handyatomtranslatorarray['iTunNORM']                    = 'iTunNORM';
2164              $handyatomtranslatorarray['Encoding Params']             = 'Encoding Params';
2165              $handyatomtranslatorarray['replaygain_track_gain']       = 'replaygain_track_gain';
2166              $handyatomtranslatorarray['replaygain_track_peak']       = 'replaygain_track_peak';
2167              $handyatomtranslatorarray['replaygain_track_minmax']     = 'replaygain_track_minmax';
2168              $handyatomtranslatorarray['MusicIP PUID']                = 'MusicIP PUID';
2169              $handyatomtranslatorarray['MusicBrainz Artist Id']       = 'MusicBrainz Artist Id';
2170              $handyatomtranslatorarray['MusicBrainz Album Id']        = 'MusicBrainz Album Id';
2171              $handyatomtranslatorarray['MusicBrainz Album Artist Id'] = 'MusicBrainz Album Artist Id';
2172              $handyatomtranslatorarray['MusicBrainz Track Id']        = 'MusicBrainz Track Id';
2173              $handyatomtranslatorarray['MusicBrainz Disc Id']         = 'MusicBrainz Disc Id';
2174  
2175              // http://age.hobba.nl/audio/tag_frame_reference.html
2176              $handyatomtranslatorarray['PLAY_COUNTER']                = 'play_counter'; // Foobar2000 - http://www.getid3.org/phpBB3/viewtopic.php?t=1355
2177              $handyatomtranslatorarray['MEDIATYPE']                   = 'mediatype';    // Foobar2000 - http://www.getid3.org/phpBB3/viewtopic.php?t=1355
2178              */
2179          }
2180          $info = &$this->getid3->info;
2181          $comment_key = '';
2182          if ($boxname && ($boxname != $keyname)) {
2183              $comment_key = (isset($handyatomtranslatorarray[$boxname]) ? $handyatomtranslatorarray[$boxname] : $boxname);
2184          } elseif (isset($handyatomtranslatorarray[$keyname])) {
2185              $comment_key = $handyatomtranslatorarray[$keyname];
2186          }
2187          if ($comment_key) {
2188              if ($comment_key == 'picture') {
2189                  if (!is_array($data)) {
2190                      $image_mime = '';
2191                      if (preg_match('#^\x89\x50\x4E\x47\x0D\x0A\x1A\x0A#', $data)) {
2192                          $image_mime = 'image/png';
2193                      } elseif (preg_match('#^\xFF\xD8\xFF#', $data)) {
2194                          $image_mime = 'image/jpeg';
2195                      } elseif (preg_match('#^GIF#', $data)) {
2196                          $image_mime = 'image/gif';
2197                      } elseif (preg_match('#^BM#', $data)) {
2198                          $image_mime = 'image/bmp';
2199                      }
2200                      $data = array('data'=>$data, 'image_mime'=>$image_mime);
2201                  }
2202              }
2203              $info['quicktime']['comments'][$comment_key][] = $data;
2204          }
2205          return true;
2206      }
2207  
2208  	public function NoNullString($nullterminatedstring) {
2209          // remove the single null terminator on null terminated strings
2210          if (substr($nullterminatedstring, strlen($nullterminatedstring) - 1, 1) === "\x00") {
2211              return substr($nullterminatedstring, 0, strlen($nullterminatedstring) - 1);
2212          }
2213          return $nullterminatedstring;
2214      }
2215  
2216  	public function Pascal2String($pascalstring) {
2217          // Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string
2218          return substr($pascalstring, 1);
2219      }
2220  
2221  }


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