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

   1  <?php
   2  
   3  /////////////////////////////////////////////////////////////////
   4  /// getID3() by James Heinrich <info@getid3.org>               //
   5  //  available at https://github.com/JamesHeinrich/getID3       //
   6  //            or https://www.getid3.org                        //
   7  //            or http://getid3.sourceforge.net                 //
   8  //  see readme.txt for more details                            //
   9  /////////////////////////////////////////////////////////////////
  10  //                                                             //
  11  // module.audio-video.quicktime.php                            //
  12  // module for analyzing Quicktime and MP3-in-MP4 files         //
  13  // dependencies: module.audio.mp3.php                          //
  14  // dependencies: module.tag.id3v2.php                          //
  15  //                                                            ///
  16  /////////////////////////////////////////////////////////////////
  17  
  18  if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
  19      exit;
  20  }
  21  getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true);
  22  getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup
  23  
  24  class getid3_quicktime extends getid3_handler
  25  {
  26  
  27      public $ReturnAtomData        = true;
  28      public $ParseAllPossibleAtoms = false;
  29  
  30      /**
  31       * @return bool
  32       */
  33  	public function Analyze() {
  34          $info = &$this->getid3->info;
  35  
  36          $info['fileformat'] = 'quicktime';
  37          $info['quicktime']['hinting']    = false;
  38          $info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present
  39  
  40          $this->fseek($info['avdataoffset']);
  41  
  42          $offset      = 0;
  43          $atomcounter = 0;
  44          $atom_data_read_buffer_size = $info['php_memory_limit'] ? round($info['php_memory_limit'] / 4) : $this->getid3->option_fread_buffer_size * 1024; // set read buffer to 25% of PHP memory limit (if one is specified), otherwise use option_fread_buffer_size [default: 32MB]
  45          while ($offset < $info['avdataend']) {
  46              if (!getid3_lib::intValueSupported($offset)) {
  47                  $this->error('Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions');
  48                  break;
  49              }
  50              $this->fseek($offset);
  51              $AtomHeader = $this->fread(8);
  52  
  53              $atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
  54              $atomname = substr($AtomHeader, 4, 4);
  55  
  56              // 64-bit MOV patch by jlegateØktnc*com
  57              if ($atomsize == 1) {
  58                  $atomsize = getid3_lib::BigEndian2Int($this->fread(8));
  59              }
  60  
  61              if (($offset + $atomsize) > $info['avdataend']) {
  62                  $info['quicktime'][$atomname]['name']   = $atomname;
  63                  $info['quicktime'][$atomname]['size']   = $atomsize;
  64                  $info['quicktime'][$atomname]['offset'] = $offset;
  65                  $this->error('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)');
  66                  return false;
  67              }
  68              if ($atomsize == 0) {
  69                  // Furthermore, for historical reasons the list of atoms is optionally
  70                  // terminated by a 32-bit integer set to 0. If you are writing a program
  71                  // to read user data atoms, you should allow for the terminating 0.
  72                  $info['quicktime'][$atomname]['name']   = $atomname;
  73                  $info['quicktime'][$atomname]['size']   = $atomsize;
  74                  $info['quicktime'][$atomname]['offset'] = $offset;
  75                  break;
  76              }
  77  
  78              $atomHierarchy = array();
  79              $parsedAtomData = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);
  80              $parsedAtomData['name']   = $atomname;
  81              $parsedAtomData['size']   = $atomsize;
  82              $parsedAtomData['offset'] = $offset;
  83              if (in_array($atomname, array('uuid'))) {
  84                  @$info['quicktime'][$atomname][] = $parsedAtomData;
  85              } else {
  86                  $info['quicktime'][$atomname] = $parsedAtomData;
  87              }
  88  
  89              $offset += $atomsize;
  90              $atomcounter++;
  91          }
  92  
  93          if (!empty($info['avdataend_tmp'])) {
  94              // this value is assigned to a temp value and then erased because
  95              // otherwise any atoms beyond the 'mdat' atom would not get parsed
  96              $info['avdataend'] = $info['avdataend_tmp'];
  97              unset($info['avdataend_tmp']);
  98          }
  99  
 100          if (!empty($info['quicktime']['comments']['chapters']) && is_array($info['quicktime']['comments']['chapters']) && (count($info['quicktime']['comments']['chapters']) > 0)) {
 101              $durations = $this->quicktime_time_to_sample_table($info);
 102              for ($i = 0; $i < count($info['quicktime']['comments']['chapters']); $i++) {
 103                  $bookmark = array();
 104                  $bookmark['title'] = $info['quicktime']['comments']['chapters'][$i];
 105                  if (isset($durations[$i])) {
 106                      $bookmark['duration_sample'] = $durations[$i]['sample_duration'];
 107                      if ($i > 0) {
 108                          $bookmark['start_sample'] = $info['quicktime']['bookmarks'][($i - 1)]['start_sample'] + $info['quicktime']['bookmarks'][($i - 1)]['duration_sample'];
 109                      } else {
 110                          $bookmark['start_sample'] = 0;
 111                      }
 112                      if ($time_scale = $this->quicktime_bookmark_time_scale($info)) {
 113                          $bookmark['duration_seconds'] = $bookmark['duration_sample'] / $time_scale;
 114                          $bookmark['start_seconds']    = $bookmark['start_sample']    / $time_scale;
 115                      }
 116                  }
 117                  $info['quicktime']['bookmarks'][] = $bookmark;
 118              }
 119          }
 120  
 121          if (isset($info['quicktime']['temp_meta_key_names'])) {
 122              unset($info['quicktime']['temp_meta_key_names']);
 123          }
 124  
 125          if (!empty($info['quicktime']['comments']['location.ISO6709'])) {
 126              // https://en.wikipedia.org/wiki/ISO_6709
 127              foreach ($info['quicktime']['comments']['location.ISO6709'] as $ISO6709string) {
 128                  $ISO6709parsed = array('latitude'=>false, 'longitude'=>false, 'altitude'=>false);
 129                  if (preg_match('#^([\\+\\-])([0-9]{2}|[0-9]{4}|[0-9]{6})(\\.[0-9]+)?([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?(([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?)?/$#', $ISO6709string, $matches)) {
 130                      // phpcs:ignore PHPCompatibility.Lists.AssignmentOrder.Affected
 131                      @list($dummy, $lat_sign, $lat_deg, $lat_deg_dec, $lon_sign, $lon_deg, $lon_deg_dec, $dummy, $alt_sign, $alt_deg, $alt_deg_dec) = $matches;
 132  
 133                      if (strlen($lat_deg) == 2) {        // [+-]DD.D
 134                          $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim($lat_deg, '0').$lat_deg_dec);
 135                      } elseif (strlen($lat_deg) == 4) {  // [+-]DDMM.M
 136                          $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0').$lat_deg_dec / 60);
 137                      } elseif (strlen($lat_deg) == 6) {  // [+-]DDMMSS.S
 138                          $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lat_deg, 4, 2), '0').$lat_deg_dec / 3600);
 139                      }
 140  
 141                      if (strlen($lon_deg) == 3) {        // [+-]DDD.D
 142                          $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim($lon_deg, '0').$lon_deg_dec);
 143                      } elseif (strlen($lon_deg) == 5) {  // [+-]DDDMM.M
 144                          $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0').$lon_deg_dec / 60);
 145                      } elseif (strlen($lon_deg) == 7) {  // [+-]DDDMMSS.S
 146                          $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lon_deg, 4, 2), '0').$lon_deg_dec / 3600);
 147                      }
 148  
 149                      if (strlen($alt_deg) == 3) {        // [+-]DDD.D
 150                          $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim($alt_deg, '0').$alt_deg_dec);
 151                      } elseif (strlen($alt_deg) == 5) {  // [+-]DDDMM.M
 152                          $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0').$alt_deg_dec / 60);
 153                      } elseif (strlen($alt_deg) == 7) {  // [+-]DDDMMSS.S
 154                          $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($alt_deg, 4, 2), '0').$alt_deg_dec / 3600);
 155                      }
 156  
 157                      foreach (array('latitude', 'longitude', 'altitude') as $key) {
 158                          if ($ISO6709parsed[$key] !== false) {
 159                              $value = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]);
 160                              if (!isset($info['quicktime']['comments']['gps_'.$key]) || !in_array($value, $info['quicktime']['comments']['gps_'.$key])) {
 161                                  @$info['quicktime']['comments']['gps_'.$key][] = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]);
 162                              }
 163                          }
 164                      }
 165                  }
 166                  if ($ISO6709parsed['latitude'] === false) {
 167                      $this->warning('location.ISO6709 string not parsed correctly: "'.$ISO6709string.'", please submit as a bug');
 168                  }
 169                  break;
 170              }
 171          }
 172  
 173          if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {
 174              $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
 175          }
 176          if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {
 177              $info['audio']['bitrate'] = $info['bitrate'];
 178          }
 179          if (!empty($info['bitrate']) && !empty($info['audio']['bitrate']) && empty($info['video']['bitrate']) && !empty($info['video']['frame_rate']) && !empty($info['video']['resolution_x']) && ($info['bitrate'] > $info['audio']['bitrate'])) {
 180              $info['video']['bitrate'] = $info['bitrate'] - $info['audio']['bitrate'];
 181          }
 182          if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {
 183              foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {
 184                  $samples_per_second = $samples_count / $info['playtime_seconds'];
 185                  if ($samples_per_second > 240) {
 186                      // has to be audio samples
 187                  } else {
 188                      $info['video']['frame_rate'] = $samples_per_second;
 189                      break;
 190                  }
 191              }
 192          }
 193          if ($info['audio']['dataformat'] == 'mp4') {
 194              $info['fileformat'] = 'mp4';
 195              if (empty($info['video']['resolution_x'])) {
 196                  $info['mime_type']  = 'audio/mp4';
 197                  unset($info['video']['dataformat']);
 198              } else {
 199                  $info['mime_type']  = 'video/mp4';
 200              }
 201          }
 202  
 203          if (!$this->ReturnAtomData) {
 204              unset($info['quicktime']['moov']);
 205          }
 206  
 207          if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {
 208              $info['audio']['dataformat'] = 'quicktime';
 209          }
 210          if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {
 211              $info['video']['dataformat'] = 'quicktime';
 212          }
 213          if (isset($info['video']) && ($info['mime_type'] == 'audio/mp4') && empty($info['video']['resolution_x']) && empty($info['video']['resolution_y']))  {
 214              unset($info['video']);
 215          }
 216  
 217          return true;
 218      }
 219  
 220      /**
 221       * @param string $atomname
 222       * @param int    $atomsize
 223       * @param string $atom_data
 224       * @param int    $baseoffset
 225       * @param array  $atomHierarchy
 226       * @param bool   $ParseAllPossibleAtoms
 227       *
 228       * @return array|false
 229       */
 230  	public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
 231          // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
 232          // https://code.google.com/p/mp4v2/wiki/iTunesMetadata
 233  
 234          $info = &$this->getid3->info;
 235  
 236          $atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see https://www.getid3.org/phpBB3/viewtopic.php?t=1717
 237          array_push($atomHierarchy, $atomname);
 238          $atom_structure              = array();
 239          $atom_structure['hierarchy'] = implode(' ', $atomHierarchy);
 240          $atom_structure['name']      = $atomname;
 241          $atom_structure['size']      = $atomsize;
 242          $atom_structure['offset']    = $baseoffset;
 243          if (substr($atomname, 0, 3) == "\x00\x00\x00") {
 244              // https://github.com/JamesHeinrich/getID3/issues/139
 245              $atomname = getid3_lib::BigEndian2Int($atomname);
 246              $atom_structure['name'] = $atomname;
 247              $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
 248          } else {
 249              switch ($atomname) {
 250                  case 'moov': // MOVie container atom
 251                  case 'trak': // TRAcK container atom
 252                  case 'clip': // CLIPping container atom
 253                  case 'matt': // track MATTe container atom
 254                  case 'edts': // EDiTS container atom
 255                  case 'tref': // Track REFerence container atom
 256                  case 'mdia': // MeDIA container atom
 257                  case 'minf': // Media INFormation container atom
 258                  case 'dinf': // Data INFormation container atom
 259                  case 'nmhd': // Null Media HeaDer container atom
 260                  case 'udta': // User DaTA container atom
 261                  case 'cmov': // Compressed MOVie container atom
 262                  case 'rmra': // Reference Movie Record Atom
 263                  case 'rmda': // Reference Movie Descriptor Atom
 264                  case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)
 265                      $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
 266                      break;
 267  
 268                  case 'ilst': // Item LiST container atom
 269                      if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) {
 270                          // some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
 271                          $allnumericnames = true;
 272                          foreach ($atom_structure['subatoms'] as $subatomarray) {
 273                              if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {
 274                                  $allnumericnames = false;
 275                                  break;
 276                              }
 277                          }
 278                          if ($allnumericnames) {
 279                              $newData = array();
 280                              foreach ($atom_structure['subatoms'] as $subatomarray) {
 281                                  foreach ($subatomarray['subatoms'] as $newData_subatomarray) {
 282                                      unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);
 283                                      $newData[$subatomarray['name']] = $newData_subatomarray;
 284                                      break;
 285                                  }
 286                              }
 287                              $atom_structure['data'] = $newData;
 288                              unset($atom_structure['subatoms']);
 289                          }
 290                      }
 291                      break;
 292  
 293                  case 'stbl': // Sample TaBLe container atom
 294                      $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
 295                      $isVideo = false;
 296                      $framerate  = 0;
 297                      $framecount = 0;
 298                      foreach ($atom_structure['subatoms'] as $key => $value_array) {
 299                          if (isset($value_array['sample_description_table'])) {
 300                              foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {
 301                                  if (isset($value_array2['data_format'])) {
 302                                      switch ($value_array2['data_format']) {
 303                                          case 'avc1':
 304                                          case 'mp4v':
 305                                              // video data
 306                                              $isVideo = true;
 307                                              break;
 308                                          case 'mp4a':
 309                                              // audio data
 310                                              break;
 311                                      }
 312                                  }
 313                              }
 314                          } elseif (isset($value_array['time_to_sample_table'])) {
 315                              foreach ($value_array['time_to_sample_table'] as $key2 => $value_array2) {
 316                                  if (isset($value_array2['sample_count']) && isset($value_array2['sample_duration']) && ($value_array2['sample_duration'] > 0)) {
 317                                      $framerate  = round($info['quicktime']['time_scale'] / $value_array2['sample_duration'], 3);
 318                                      $framecount = $value_array2['sample_count'];
 319                                  }
 320                              }
 321                          }
 322                      }
 323                      if ($isVideo && $framerate) {
 324                          $info['quicktime']['video']['frame_rate'] = $framerate;
 325                          $info['video']['frame_rate'] = $info['quicktime']['video']['frame_rate'];
 326                      }
 327                      if ($isVideo && $framecount) {
 328                          $info['quicktime']['video']['frame_count'] = $framecount;
 329                      }
 330                      break;
 331  
 332  
 333                  case "\xA9".'alb': // ALBum
 334                  case "\xA9".'ART': //
 335                  case "\xA9".'art': // ARTist
 336                  case "\xA9".'aut': //
 337                  case "\xA9".'cmt': // CoMmenT
 338                  case "\xA9".'com': // COMposer
 339                  case "\xA9".'cpy': //
 340                  case "\xA9".'day': // content created year
 341                  case "\xA9".'dir': //
 342                  case "\xA9".'ed1': //
 343                  case "\xA9".'ed2': //
 344                  case "\xA9".'ed3': //
 345                  case "\xA9".'ed4': //
 346                  case "\xA9".'ed5': //
 347                  case "\xA9".'ed6': //
 348                  case "\xA9".'ed7': //
 349                  case "\xA9".'ed8': //
 350                  case "\xA9".'ed9': //
 351                  case "\xA9".'enc': //
 352                  case "\xA9".'fmt': //
 353                  case "\xA9".'gen': // GENre
 354                  case "\xA9".'grp': // GRouPing
 355                  case "\xA9".'hst': //
 356                  case "\xA9".'inf': //
 357                  case "\xA9".'lyr': // LYRics
 358                  case "\xA9".'mak': //
 359                  case "\xA9".'mod': //
 360                  case "\xA9".'nam': // full NAMe
 361                  case "\xA9".'ope': //
 362                  case "\xA9".'PRD': //
 363                  case "\xA9".'prf': //
 364                  case "\xA9".'req': //
 365                  case "\xA9".'src': //
 366                  case "\xA9".'swr': //
 367                  case "\xA9".'too': // encoder
 368                  case "\xA9".'trk': // TRacK
 369                  case "\xA9".'url': //
 370                  case "\xA9".'wrn': //
 371                  case "\xA9".'wrt': // WRiTer
 372                  case '----': // itunes specific
 373                  case 'aART': // Album ARTist
 374                  case 'akID': // iTunes store account type
 375                  case 'apID': // Purchase Account
 376                  case 'atID': //
 377                  case 'catg': // CaTeGory
 378                  case 'cmID': //
 379                  case 'cnID': //
 380                  case 'covr': // COVeR artwork
 381                  case 'cpil': // ComPILation
 382                  case 'cprt': // CoPyRighT
 383                  case 'desc': // DESCription
 384                  case 'disk': // DISK number
 385                  case 'egid': // Episode Global ID
 386                  case 'geID': //
 387                  case 'gnre': // GeNRE
 388                  case 'hdvd': // HD ViDeo
 389                  case 'keyw': // KEYWord
 390                  case 'ldes': // Long DEScription
 391                  case 'pcst': // PodCaST
 392                  case 'pgap': // GAPless Playback
 393                  case 'plID': //
 394                  case 'purd': // PURchase Date
 395                  case 'purl': // Podcast URL
 396                  case 'rati': //
 397                  case 'rndu': //
 398                  case 'rpdu': //
 399                  case 'rtng': // RaTiNG
 400                  case 'sfID': // iTunes store country
 401                  case 'soaa': // SOrt Album Artist
 402                  case 'soal': // SOrt ALbum
 403                  case 'soar': // SOrt ARtist
 404                  case 'soco': // SOrt COmposer
 405                  case 'sonm': // SOrt NaMe
 406                  case 'sosn': // SOrt Show Name
 407                  case 'stik': //
 408                  case 'tmpo': // TeMPO (BPM)
 409                  case 'trkn': // TRacK Number
 410                  case 'tven': // tvEpisodeID
 411                  case 'tves': // TV EpiSode
 412                  case 'tvnn': // TV Network Name
 413                  case 'tvsh': // TV SHow Name
 414                  case 'tvsn': // TV SeasoN
 415                      if ($atom_parent == 'udta') {
 416                          // User data atom handler
 417                          $atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
 418                          $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
 419                          $atom_structure['data']        =                           substr($atom_data, 4);
 420  
 421                          $atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
 422                          if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
 423                              $info['comments']['language'][] = $atom_structure['language'];
 424                          }
 425                      } else {
 426                          // Apple item list box atom handler
 427                          $atomoffset = 0;
 428                          if (substr($atom_data, 2, 2) == "\x10\xB5") {
 429                              // not sure what it means, but observed on iPhone4 data.
 430                              // Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
 431                              while ($atomoffset < strlen($atom_data)) {
 432                                  $boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset,     2));
 433                                  $boxsmalltype =                           substr($atom_data, $atomoffset + 2, 2);
 434                                  $boxsmalldata =                           substr($atom_data, $atomoffset + 4, $boxsmallsize);
 435                                  if ($boxsmallsize <= 1) {
 436                                      $this->warning('Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset));
 437                                      $atom_structure['data'] = null;
 438                                      $atomoffset = strlen($atom_data);
 439                                      break;
 440                                  }
 441                                  switch ($boxsmalltype) {
 442                                      case "\x10\xB5":
 443                                          $atom_structure['data'] = $boxsmalldata;
 444                                          break;
 445                                      default:
 446                                          $this->warning('Unknown QuickTime smallbox type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxsmalltype).'" ('.trim(getid3_lib::PrintHexBytes($boxsmalltype)).') at offset '.$baseoffset);
 447                                          $atom_structure['data'] = $atom_data;
 448                                          break;
 449                                  }
 450                                  $atomoffset += (4 + $boxsmallsize);
 451                              }
 452                          } else {
 453                              while ($atomoffset < strlen($atom_data)) {
 454                                  $boxsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 4));
 455                                  $boxtype =                           substr($atom_data, $atomoffset + 4, 4);
 456                                  $boxdata =                           substr($atom_data, $atomoffset + 8, $boxsize - 8);
 457                                  if ($boxsize <= 1) {
 458                                      $this->warning('Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset));
 459                                      $atom_structure['data'] = null;
 460                                      $atomoffset = strlen($atom_data);
 461                                      break;
 462                                  }
 463                                  $atomoffset += $boxsize;
 464  
 465                                  switch ($boxtype) {
 466                                      case 'mean':
 467                                      case 'name':
 468                                          $atom_structure[$boxtype] = substr($boxdata, 4);
 469                                          break;
 470  
 471                                      case 'data':
 472                                          $atom_structure['version']   = getid3_lib::BigEndian2Int(substr($boxdata,  0, 1));
 473                                          $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($boxdata,  1, 3));
 474                                          switch ($atom_structure['flags_raw']) {
 475                                              case  0: // data flag
 476                                              case 21: // tmpo/cpil flag
 477                                                  switch ($atomname) {
 478                                                      case 'cpil':
 479                                                      case 'hdvd':
 480                                                      case 'pcst':
 481                                                      case 'pgap':
 482                                                          // 8-bit integer (boolean)
 483                                                          $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
 484                                                          break;
 485  
 486                                                      case 'tmpo':
 487                                                          // 16-bit integer
 488                                                          $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2));
 489                                                          break;
 490  
 491                                                      case 'disk':
 492                                                      case 'trkn':
 493                                                          // binary
 494                                                          $num       = getid3_lib::BigEndian2Int(substr($boxdata, 10, 2));
 495                                                          $num_total = getid3_lib::BigEndian2Int(substr($boxdata, 12, 2));
 496                                                          $atom_structure['data']  = empty($num) ? '' : $num;
 497                                                          $atom_structure['data'] .= empty($num_total) ? '' : '/'.$num_total;
 498                                                          break;
 499  
 500                                                      case 'gnre':
 501                                                          // enum
 502                                                          $GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
 503                                                          $atom_structure['data']    = getid3_id3v1::LookupGenreName($GenreID - 1);
 504                                                          break;
 505  
 506                                                      case 'rtng':
 507                                                          // 8-bit integer
 508                                                          $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
 509                                                          $atom_structure['data']    = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]);
 510                                                          break;
 511  
 512                                                      case 'stik':
 513                                                          // 8-bit integer (enum)
 514                                                          $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
 515                                                          $atom_structure['data']    = $this->QuicktimeSTIKLookup($atom_structure[$atomname]);
 516                                                          break;
 517  
 518                                                      case 'sfID':
 519                                                          // 32-bit integer
 520                                                          $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
 521                                                          $atom_structure['data']    = $this->QuicktimeStoreFrontCodeLookup($atom_structure[$atomname]);
 522                                                          break;
 523  
 524                                                      case 'egid':
 525                                                      case 'purl':
 526                                                          $atom_structure['data'] = substr($boxdata, 8);
 527                                                          break;
 528  
 529                                                      case 'plID':
 530                                                          // 64-bit integer
 531                                                          $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 8));
 532                                                          break;
 533  
 534                                                      case 'covr':
 535                                                          $atom_structure['data'] = substr($boxdata, 8);
 536                                                          // not a foolproof check, but better than nothing
 537                                                          if (preg_match('#^\\xFF\\xD8\\xFF#', $atom_structure['data'])) {
 538                                                              $atom_structure['image_mime'] = 'image/jpeg';
 539                                                          } elseif (preg_match('#^\\x89\\x50\\x4E\\x47\\x0D\\x0A\\x1A\\x0A#', $atom_structure['data'])) {
 540                                                              $atom_structure['image_mime'] = 'image/png';
 541                                                          } elseif (preg_match('#^GIF#', $atom_structure['data'])) {
 542                                                              $atom_structure['image_mime'] = 'image/gif';
 543                                                          }
 544                                                          $info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_structure['data'], 'description'=>'cover');
 545                                                          break;
 546  
 547                                                      case 'atID':
 548                                                      case 'cnID':
 549                                                      case 'geID':
 550                                                      case 'tves':
 551                                                      case 'tvsn':
 552                                                      default:
 553                                                          // 32-bit integer
 554                                                          $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
 555                                                  }
 556                                                  break;
 557  
 558                                              case  1: // text flag
 559                                              case 13: // image flag
 560                                              default:
 561                                                  $atom_structure['data'] = substr($boxdata, 8);
 562                                                  if ($atomname == 'covr') {
 563                                                      // not a foolproof check, but better than nothing
 564                                                      if (preg_match('#^\\xFF\\xD8\\xFF#', $atom_structure['data'])) {
 565                                                          $atom_structure['image_mime'] = 'image/jpeg';
 566                                                      } elseif (preg_match('#^\\x89\\x50\\x4E\\x47\\x0D\\x0A\\x1A\\x0A#', $atom_structure['data'])) {
 567                                                          $atom_structure['image_mime'] = 'image/png';
 568                                                      } elseif (preg_match('#^GIF#', $atom_structure['data'])) {
 569                                                          $atom_structure['image_mime'] = 'image/gif';
 570                                                      }
 571                                                      $info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_structure['data'], 'description'=>'cover');
 572                                                  }
 573                                                  break;
 574  
 575                                          }
 576                                          break;
 577  
 578                                      default:
 579                                          $this->warning('Unknown QuickTime box type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxtype).'" ('.trim(getid3_lib::PrintHexBytes($boxtype)).') at offset '.$baseoffset);
 580                                          $atom_structure['data'] = $atom_data;
 581  
 582                                  }
 583                              }
 584                          }
 585                      }
 586                      $this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);
 587                      break;
 588  
 589  
 590                  case 'play': // auto-PLAY atom
 591                      $atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 592  
 593                      $info['quicktime']['autoplay'] = $atom_structure['autoplay'];
 594                      break;
 595  
 596  
 597                  case 'WLOC': // Window LOCation atom
 598                      $atom_structure['location_x']  = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2));
 599                      $atom_structure['location_y']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 2));
 600                      break;
 601  
 602  
 603                  case 'LOOP': // LOOPing atom
 604                  case 'SelO': // play SELection Only atom
 605                  case 'AllF': // play ALL Frames atom
 606                      $atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);
 607                      break;
 608  
 609  
 610                  case 'name': //
 611                  case 'MCPS': // Media Cleaner PRo
 612                  case '@PRM': // adobe PReMiere version
 613                  case '@PRQ': // adobe PRemiere Quicktime version
 614                      $atom_structure['data'] = $atom_data;
 615                      break;
 616  
 617  
 618                  case 'cmvd': // Compressed MooV Data atom
 619                      // Code by ubergeekØubergeek*tv based on information from
 620                      // http://developer.apple.com/quicktime/icefloe/dispatch012.html
 621                      $atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
 622  
 623                      $CompressedFileData = substr($atom_data, 4);
 624                      if ($UncompressedHeader = @gzuncompress($CompressedFileData)) {
 625                          $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms);
 626                      } else {
 627                          $this->warning('Error decompressing compressed MOV atom at offset '.$atom_structure['offset']);
 628                      }
 629                      break;
 630  
 631  
 632                  case 'dcom': // Data COMpression atom
 633                      $atom_structure['compression_id']   = $atom_data;
 634                      $atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);
 635                      break;
 636  
 637  
 638                  case 'rdrf': // Reference movie Data ReFerence atom
 639                      $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 640                      $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
 641                      $atom_structure['flags']['internal_data'] = (bool) ($atom_structure['flags_raw'] & 0x000001);
 642  
 643                      $atom_structure['reference_type_name']    =                           substr($atom_data,  4, 4);
 644                      $atom_structure['reference_length']       = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
 645                      switch ($atom_structure['reference_type_name']) {
 646                          case 'url ':
 647                              $atom_structure['url']            =       $this->NoNullString(substr($atom_data, 12));
 648                              break;
 649  
 650                          case 'alis':
 651                              $atom_structure['file_alias']     =                           substr($atom_data, 12);
 652                              break;
 653  
 654                          case 'rsrc':
 655                              $atom_structure['resource_alias'] =                           substr($atom_data, 12);
 656                              break;
 657  
 658                          default:
 659                              $atom_structure['data']           =                           substr($atom_data, 12);
 660                              break;
 661                      }
 662                      break;
 663  
 664  
 665                  case 'rmqu': // Reference Movie QUality atom
 666                      $atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
 667                      break;
 668  
 669  
 670                  case 'rmcs': // Reference Movie Cpu Speed atom
 671                      $atom_structure['version']          = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 672                      $atom_structure['flags_raw']        = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 673                      $atom_structure['cpu_speed_rating'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
 674                      break;
 675  
 676  
 677                  case 'rmvc': // Reference Movie Version Check atom
 678                      $atom_structure['version']            = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 679                      $atom_structure['flags_raw']          = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 680                      $atom_structure['gestalt_selector']   =                           substr($atom_data,  4, 4);
 681                      $atom_structure['gestalt_value_mask'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
 682                      $atom_structure['gestalt_value']      = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
 683                      $atom_structure['gestalt_check_type'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
 684                      break;
 685  
 686  
 687                  case 'rmcd': // Reference Movie Component check atom
 688                      $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 689                      $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 690                      $atom_structure['component_type']         =                           substr($atom_data,  4, 4);
 691                      $atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
 692                      $atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
 693                      $atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
 694                      $atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
 695                      $atom_structure['component_min_version']  = getid3_lib::BigEndian2Int(substr($atom_data, 24, 4));
 696                      break;
 697  
 698  
 699                  case 'rmdr': // Reference Movie Data Rate atom
 700                      $atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 701                      $atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 702                      $atom_structure['data_rate']     = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 703  
 704                      $atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
 705                      break;
 706  
 707  
 708                  case 'rmla': // Reference Movie Language Atom
 709                      $atom_structure['version']     = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 710                      $atom_structure['flags_raw']   = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 711                      $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
 712  
 713                      $atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
 714                      if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
 715                          $info['comments']['language'][] = $atom_structure['language'];
 716                      }
 717                      break;
 718  
 719  
 720                  case 'ptv ': // Print To Video - defines a movie's full screen mode
 721                      // http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
 722                      $atom_structure['display_size_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
 723                      $atom_structure['reserved_1']        = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); // hardcoded: 0x0000
 724                      $atom_structure['reserved_2']        = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x0000
 725                      $atom_structure['slide_show_flag']   = getid3_lib::BigEndian2Int(substr($atom_data, 6, 1));
 726                      $atom_structure['play_on_open_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 7, 1));
 727  
 728                      $atom_structure['flags']['play_on_open'] = (bool) $atom_structure['play_on_open_flag'];
 729                      $atom_structure['flags']['slide_show']   = (bool) $atom_structure['slide_show_flag'];
 730  
 731                      $ptv_lookup[0] = 'normal';
 732                      $ptv_lookup[1] = 'double';
 733                      $ptv_lookup[2] = 'half';
 734                      $ptv_lookup[3] = 'full';
 735                      $ptv_lookup[4] = 'current';
 736                      if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {
 737                          $atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];
 738                      } else {
 739                          $this->warning('unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')');
 740                      }
 741                      break;
 742  
 743  
 744                  case 'stsd': // Sample Table Sample Description atom
 745                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 746                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 747                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 748  
 749                      // see: https://github.com/JamesHeinrich/getID3/issues/111
 750                      // Some corrupt files have been known to have high bits set in the number_entries field
 751                      // This field shouldn't really need to be 32-bits, values stores are likely in the range 1-100000
 752                      // Workaround: mask off the upper byte and throw a warning if it's nonzero
 753                      if ($atom_structure['number_entries'] > 0x000FFFFF) {
 754                          if ($atom_structure['number_entries'] > 0x00FFFFFF) {
 755                              $this->warning('"stsd" atom contains improbably large number_entries (0x'.getid3_lib::PrintHexBytes(substr($atom_data, 4, 4), true, false).' = '.$atom_structure['number_entries'].'), probably in error. Ignoring upper byte and interpreting this as 0x'.getid3_lib::PrintHexBytes(substr($atom_data, 5, 3), true, false).' = '.($atom_structure['number_entries'] & 0x00FFFFFF));
 756                              $atom_structure['number_entries'] = ($atom_structure['number_entries'] & 0x00FFFFFF);
 757                          } else {
 758                              $this->warning('"stsd" atom contains improbably large number_entries (0x'.getid3_lib::PrintHexBytes(substr($atom_data, 4, 4), true, false).' = '.$atom_structure['number_entries'].'), probably in error. Please report this to info@getid3.org referencing bug report #111');
 759                          }
 760                      }
 761  
 762                      $stsdEntriesDataOffset = 8;
 763                      for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
 764                          $atom_structure['sample_description_table'][$i]['size']             = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 4));
 765                          $stsdEntriesDataOffset += 4;
 766                          $atom_structure['sample_description_table'][$i]['data_format']      =                           substr($atom_data, $stsdEntriesDataOffset, 4);
 767                          $stsdEntriesDataOffset += 4;
 768                          $atom_structure['sample_description_table'][$i]['reserved']         = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 6));
 769                          $stsdEntriesDataOffset += 6;
 770                          $atom_structure['sample_description_table'][$i]['reference_index']  = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 2));
 771                          $stsdEntriesDataOffset += 2;
 772                          $atom_structure['sample_description_table'][$i]['data']             =                           substr($atom_data, $stsdEntriesDataOffset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));
 773                          $stsdEntriesDataOffset += ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);
 774  
 775                          if (substr($atom_structure['sample_description_table'][$i]['data'],  1, 54) == 'application/octet-stream;type=com.parrot.videometadata') {
 776                              // special handling for apparently-malformed (TextMetaDataSampleEntry?) data for some version of Parrot drones
 777                              $atom_structure['sample_description_table'][$i]['parrot_frame_metadata']['mime_type']        =       substr($atom_structure['sample_description_table'][$i]['data'],  1, 55);
 778                              $atom_structure['sample_description_table'][$i]['parrot_frame_metadata']['metadata_version'] = (int) substr($atom_structure['sample_description_table'][$i]['data'], 55,  1);
 779                              unset($atom_structure['sample_description_table'][$i]['data']);
 780  $this->warning('incomplete/incorrect handling of "stsd" with Parrot metadata in this version of getID3() ['.$this->getid3->version().']');
 781                              continue;
 782                          }
 783  
 784                          $atom_structure['sample_description_table'][$i]['encoder_version']  = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  0, 2));
 785                          $atom_structure['sample_description_table'][$i]['encoder_revision'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  2, 2));
 786                          $atom_structure['sample_description_table'][$i]['encoder_vendor']   =                           substr($atom_structure['sample_description_table'][$i]['data'],  4, 4);
 787  
 788                          switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {
 789  
 790                              case "\x00\x00\x00\x00":
 791                                  // audio tracks
 792                                  $atom_structure['sample_description_table'][$i]['audio_channels']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  2));
 793                                  $atom_structure['sample_description_table'][$i]['audio_bit_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10,  2));
 794                                  $atom_structure['sample_description_table'][$i]['audio_compression_id'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  2));
 795                                  $atom_structure['sample_description_table'][$i]['audio_packet_size']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14,  2));
 796                                  $atom_structure['sample_description_table'][$i]['audio_sample_rate']    = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16,  4));
 797  
 798                                  // video tracks
 799                                  // http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
 800                                  $atom_structure['sample_description_table'][$i]['temporal_quality'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
 801                                  $atom_structure['sample_description_table'][$i]['spatial_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
 802                                  $atom_structure['sample_description_table'][$i]['width']            =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
 803                                  $atom_structure['sample_description_table'][$i]['height']           =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
 804                                  $atom_structure['sample_description_table'][$i]['resolution_x']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
 805                                  $atom_structure['sample_description_table'][$i]['resolution_y']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
 806                                  $atom_structure['sample_description_table'][$i]['data_size']        =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  4));
 807                                  $atom_structure['sample_description_table'][$i]['frame_count']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36,  2));
 808                                  $atom_structure['sample_description_table'][$i]['compressor_name']  =                             substr($atom_structure['sample_description_table'][$i]['data'], 38,  4);
 809                                  $atom_structure['sample_description_table'][$i]['pixel_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42,  2));
 810                                  $atom_structure['sample_description_table'][$i]['color_table_id']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44,  2));
 811  
 812                                  switch ($atom_structure['sample_description_table'][$i]['data_format']) {
 813                                      case '2vuY':
 814                                      case 'avc1':
 815                                      case 'cvid':
 816                                      case 'dvc ':
 817                                      case 'dvcp':
 818                                      case 'gif ':
 819                                      case 'h263':
 820                                      case 'jpeg':
 821                                      case 'kpcd':
 822                                      case 'mjpa':
 823                                      case 'mjpb':
 824                                      case 'mp4v':
 825                                      case 'png ':
 826                                      case 'raw ':
 827                                      case 'rle ':
 828                                      case 'rpza':
 829                                      case 'smc ':
 830                                      case 'SVQ1':
 831                                      case 'SVQ3':
 832                                      case 'tiff':
 833                                      case 'v210':
 834                                      case 'v216':
 835                                      case 'v308':
 836                                      case 'v408':
 837                                      case 'v410':
 838                                      case 'yuv2':
 839                                          $info['fileformat'] = 'mp4';
 840                                          $info['video']['fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];
 841                                          if ($this->QuicktimeVideoCodecLookup($info['video']['fourcc'])) {
 842                                              $info['video']['fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($info['video']['fourcc']);
 843                                          }
 844  
 845                                          // https://www.getid3.org/phpBB3/viewtopic.php?t=1550
 846                                          //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
 847                                          if (!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['height'])) {
 848                                              // assume that values stored here are more important than values stored in [tkhd] atom
 849                                              $info['video']['resolution_x'] = $atom_structure['sample_description_table'][$i]['width'];
 850                                              $info['video']['resolution_y'] = $atom_structure['sample_description_table'][$i]['height'];
 851                                              $info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
 852                                              $info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
 853                                          }
 854                                          break;
 855  
 856                                      case 'qtvr':
 857                                          $info['video']['dataformat'] = 'quicktimevr';
 858                                          break;
 859  
 860                                      case 'mp4a':
 861                                      default:
 862                                          $info['quicktime']['audio']['codec']       = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
 863                                          $info['quicktime']['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];
 864                                          $info['quicktime']['audio']['channels']    = $atom_structure['sample_description_table'][$i]['audio_channels'];
 865                                          $info['quicktime']['audio']['bit_depth']   = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];
 866                                          $info['audio']['codec']                    = $info['quicktime']['audio']['codec'];
 867                                          $info['audio']['sample_rate']              = $info['quicktime']['audio']['sample_rate'];
 868                                          $info['audio']['channels']                 = $info['quicktime']['audio']['channels'];
 869                                          $info['audio']['bits_per_sample']          = $info['quicktime']['audio']['bit_depth'];
 870                                          switch ($atom_structure['sample_description_table'][$i]['data_format']) {
 871                                              case 'raw ': // PCM
 872                                              case 'alac': // Apple Lossless Audio Codec
 873                                              case 'sowt': // signed/two's complement (Little Endian)
 874                                              case 'twos': // signed/two's complement (Big Endian)
 875                                              case 'in24': // 24-bit Integer
 876                                              case 'in32': // 32-bit Integer
 877                                              case 'fl32': // 32-bit Floating Point
 878                                              case 'fl64': // 64-bit Floating Point
 879                                                  $info['audio']['lossless'] = $info['quicktime']['audio']['lossless'] = true;
 880                                                  $info['audio']['bitrate']  = $info['quicktime']['audio']['bitrate']  = $info['audio']['channels'] * $info['audio']['bits_per_sample'] * $info['audio']['sample_rate'];
 881                                                  break;
 882                                              default:
 883                                                  $info['audio']['lossless'] = false;
 884                                                  break;
 885                                          }
 886                                          break;
 887                                  }
 888                                  break;
 889  
 890                              default:
 891                                  switch ($atom_structure['sample_description_table'][$i]['data_format']) {
 892                                      case 'mp4s':
 893                                          $info['fileformat'] = 'mp4';
 894                                          break;
 895  
 896                                      default:
 897                                          // video atom
 898                                          $atom_structure['sample_description_table'][$i]['video_temporal_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
 899                                          $atom_structure['sample_description_table'][$i]['video_spatial_quality']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
 900                                          $atom_structure['sample_description_table'][$i]['video_frame_width']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
 901                                          $atom_structure['sample_description_table'][$i]['video_frame_height']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
 902                                          $atom_structure['sample_description_table'][$i]['video_resolution_x']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20,  4));
 903                                          $atom_structure['sample_description_table'][$i]['video_resolution_y']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
 904                                          $atom_structure['sample_description_table'][$i]['video_data_size']         =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
 905                                          $atom_structure['sample_description_table'][$i]['video_frame_count']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  2));
 906                                          $atom_structure['sample_description_table'][$i]['video_encoder_name_len']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 34,  1));
 907                                          $atom_structure['sample_description_table'][$i]['video_encoder_name']      =                             substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);
 908                                          $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66,  2));
 909                                          $atom_structure['sample_description_table'][$i]['video_color_table_id']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68,  2));
 910  
 911                                          $atom_structure['sample_description_table'][$i]['video_pixel_color_type']  = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');
 912                                          $atom_structure['sample_description_table'][$i]['video_pixel_color_name']  = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);
 913  
 914                                          if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {
 915                                              $info['quicktime']['video']['codec_fourcc']        = $atom_structure['sample_description_table'][$i]['data_format'];
 916                                              $info['quicktime']['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
 917                                              $info['quicktime']['video']['codec']               = (($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']);
 918                                              $info['quicktime']['video']['color_depth']         = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];
 919                                              $info['quicktime']['video']['color_depth_name']    = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];
 920  
 921                                              $info['video']['codec']           = $info['quicktime']['video']['codec'];
 922                                              $info['video']['bits_per_sample'] = $info['quicktime']['video']['color_depth'];
 923                                          }
 924                                          $info['video']['lossless']           = false;
 925                                          $info['video']['pixel_aspect_ratio'] = (float) 1;
 926                                          break;
 927                                  }
 928                                  break;
 929                          }
 930                          switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {
 931                              case 'mp4a':
 932                                  $info['audio']['dataformat']         = 'mp4';
 933                                  $info['quicktime']['audio']['codec'] = 'mp4';
 934                                  break;
 935  
 936                              case '3ivx':
 937                              case '3iv1':
 938                              case '3iv2':
 939                                  $info['video']['dataformat'] = '3ivx';
 940                                  break;
 941  
 942                              case 'xvid':
 943                                  $info['video']['dataformat'] = 'xvid';
 944                                  break;
 945  
 946                              case 'mp4v':
 947                                  $info['video']['dataformat'] = 'mpeg4';
 948                                  break;
 949  
 950                              case 'divx':
 951                              case 'div1':
 952                              case 'div2':
 953                              case 'div3':
 954                              case 'div4':
 955                              case 'div5':
 956                              case 'div6':
 957                                  $info['video']['dataformat'] = 'divx';
 958                                  break;
 959  
 960                              default:
 961                                  // do nothing
 962                                  break;
 963                          }
 964                          unset($atom_structure['sample_description_table'][$i]['data']);
 965                      }
 966                      break;
 967  
 968  
 969                  case 'stts': // Sample Table Time-to-Sample atom
 970                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
 971                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
 972                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
 973                      $sttsEntriesDataOffset = 8;
 974                      //$FrameRateCalculatorArray = array();
 975                      $frames_count = 0;
 976  
 977                      $max_stts_entries_to_scan = ($info['php_memory_limit'] ? min(floor($this->getid3->memory_limit / 10000), $atom_structure['number_entries']) : $atom_structure['number_entries']);
 978                      if ($max_stts_entries_to_scan < $atom_structure['number_entries']) {
 979                          $this->warning('QuickTime atom "stts" has '.$atom_structure['number_entries'].' but only scanning the first '.$max_stts_entries_to_scan.' entries due to limited PHP memory available ('.floor($this->getid3->memory_limit / 1048576).'MB).');
 980                      }
 981                      for ($i = 0; $i < $max_stts_entries_to_scan; $i++) {
 982                          $atom_structure['time_to_sample_table'][$i]['sample_count']    = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
 983                          $sttsEntriesDataOffset += 4;
 984                          $atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
 985                          $sttsEntriesDataOffset += 4;
 986  
 987                          $frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count'];
 988  
 989                          // THIS SECTION REPLACED WITH CODE IN "stbl" ATOM
 990                          //if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
 991                          //    $stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];
 992                          //    if ($stts_new_framerate <= 60) {
 993                          //        // some atoms have durations of "1" giving a very large framerate, which probably is not right
 994                          //        $info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);
 995                          //    }
 996                          //}
 997                          //
 998                          //$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];
 999                      }
1000                      $info['quicktime']['stts_framecount'][] = $frames_count;
1001                      //$sttsFramesTotal  = 0;
1002                      //$sttsSecondsTotal = 0;
1003                      //foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {
1004                      //    if (($frames_per_second > 60) || ($frames_per_second < 1)) {
1005                      //        // not video FPS information, probably audio information
1006                      //        $sttsFramesTotal  = 0;
1007                      //        $sttsSecondsTotal = 0;
1008                      //        break;
1009                      //    }
1010                      //    $sttsFramesTotal  += $frame_count;
1011                      //    $sttsSecondsTotal += $frame_count / $frames_per_second;
1012                      //}
1013                      //if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {
1014                      //    if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {
1015                      //        $info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;
1016                      //    }
1017                      //}
1018                      break;
1019  
1020  
1021                  case 'stss': // Sample Table Sync Sample (key frames) atom
1022                      if ($ParseAllPossibleAtoms) {
1023                          $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1024                          $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1025                          $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1026                          $stssEntriesDataOffset = 8;
1027                          for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1028                              $atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stssEntriesDataOffset, 4));
1029                              $stssEntriesDataOffset += 4;
1030                          }
1031                      }
1032                      break;
1033  
1034  
1035                  case 'stsc': // Sample Table Sample-to-Chunk atom
1036                      if ($ParseAllPossibleAtoms) {
1037                          $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1038                          $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1039                          $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1040                          $stscEntriesDataOffset = 8;
1041                          for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1042                              $atom_structure['sample_to_chunk_table'][$i]['first_chunk']        = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
1043                              $stscEntriesDataOffset += 4;
1044                              $atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk']  = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
1045                              $stscEntriesDataOffset += 4;
1046                              $atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
1047                              $stscEntriesDataOffset += 4;
1048                          }
1049                      }
1050                      break;
1051  
1052  
1053                  case 'stsz': // Sample Table SiZe atom
1054                      if ($ParseAllPossibleAtoms) {
1055                          $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1056                          $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1057                          $atom_structure['sample_size']    = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1058                          $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1059                          $stszEntriesDataOffset = 12;
1060                          if ($atom_structure['sample_size'] == 0) {
1061                              for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1062                                  $atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stszEntriesDataOffset, 4));
1063                                  $stszEntriesDataOffset += 4;
1064                              }
1065                          }
1066                      }
1067                      break;
1068  
1069  
1070                  case 'stco': // Sample Table Chunk Offset atom
1071  //                    if (true) {
1072                      if ($ParseAllPossibleAtoms) {
1073                          $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1074                          $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1075                          $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1076                          $stcoEntriesDataOffset = 8;
1077                          for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1078                              $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 4));
1079                              $stcoEntriesDataOffset += 4;
1080                          }
1081                      }
1082                      break;
1083  
1084  
1085                  case 'co64': // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)
1086                      if ($ParseAllPossibleAtoms) {
1087                          $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1088                          $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1089                          $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1090                          $stcoEntriesDataOffset = 8;
1091                          for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1092                              $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 8));
1093                              $stcoEntriesDataOffset += 8;
1094                          }
1095                      }
1096                      break;
1097  
1098  
1099                  case 'dref': // Data REFerence atom
1100                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1101                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1102                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1103                      $drefDataOffset = 8;
1104                      for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1105                          $atom_structure['data_references'][$i]['size']                    = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 4));
1106                          $drefDataOffset += 4;
1107                          $atom_structure['data_references'][$i]['type']                    =                           substr($atom_data, $drefDataOffset, 4);
1108                          $drefDataOffset += 4;
1109                          $atom_structure['data_references'][$i]['version']                 = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 1));
1110                          $drefDataOffset += 1;
1111                          $atom_structure['data_references'][$i]['flags_raw']               = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 3)); // hardcoded: 0x0000
1112                          $drefDataOffset += 3;
1113                          $atom_structure['data_references'][$i]['data']                    =                           substr($atom_data, $drefDataOffset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));
1114                          $drefDataOffset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);
1115  
1116                          $atom_structure['data_references'][$i]['flags']['self_reference'] = (bool) ($atom_structure['data_references'][$i]['flags_raw'] & 0x001);
1117                      }
1118                      break;
1119  
1120  
1121                  case 'gmin': // base Media INformation atom
1122                      $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1123                      $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1124                      $atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
1125                      $atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
1126                      $atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
1127                      $atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
1128                      $atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data, 12, 2));
1129                      $atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
1130                      break;
1131  
1132  
1133                  case 'smhd': // Sound Media information HeaDer atom
1134                      $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1135                      $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1136                      $atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
1137                      $atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
1138                      break;
1139  
1140  
1141                  case 'vmhd': // Video Media information HeaDer atom
1142                      $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1143                      $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1144                      $atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
1145                      $atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
1146                      $atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
1147                      $atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
1148  
1149                      $atom_structure['flags']['no_lean_ahead'] = (bool) ($atom_structure['flags_raw'] & 0x001);
1150                      break;
1151  
1152  
1153                  case 'hdlr': // HanDLeR reference atom
1154                      $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1155                      $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1156                      $atom_structure['component_type']         =                           substr($atom_data,  4, 4);
1157                      $atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
1158                      $atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
1159                      $atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1160                      $atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
1161                      $atom_structure['component_name']         = $this->MaybePascal2String(substr($atom_data, 24));
1162  
1163                      if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {
1164                          $info['video']['dataformat'] = 'quicktimevr';
1165                      }
1166                      break;
1167  
1168  
1169                  case 'mdhd': // MeDia HeaDer atom
1170                      $atom_structure['version']               = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1171                      $atom_structure['flags_raw']             = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1172                      $atom_structure['creation_time']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1173                      $atom_structure['modify_time']           = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1174                      $atom_structure['time_scale']            = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1175                      $atom_structure['duration']              = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1176                      $atom_structure['language_id']           = getid3_lib::BigEndian2Int(substr($atom_data, 20, 2));
1177                      $atom_structure['quality']               = getid3_lib::BigEndian2Int(substr($atom_data, 22, 2));
1178  
1179                      if ($atom_structure['time_scale'] == 0) {
1180                          $this->error('Corrupt Quicktime file: mdhd.time_scale == zero');
1181                          return false;
1182                      }
1183                      $info['quicktime']['time_scale'] = ((isset($info['quicktime']['time_scale']) && ($info['quicktime']['time_scale'] < 1000)) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1184  
1185                      $atom_structure['creation_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1186                      $atom_structure['modify_time_unix']      = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1187                      $atom_structure['playtime_seconds']      = $atom_structure['duration'] / $atom_structure['time_scale'];
1188                      $atom_structure['language']              = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
1189                      if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
1190                          $info['comments']['language'][] = $atom_structure['language'];
1191                      }
1192                      $info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
1193                      $info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
1194                      break;
1195  
1196  
1197                  case 'pnot': // Preview atom
1198                      $atom_structure['modification_date']      = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // "standard Macintosh format"
1199                      $atom_structure['version_number']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x00
1200                      $atom_structure['atom_type']              =                           substr($atom_data,  6, 4);        // usually: 'PICT'
1201                      $atom_structure['atom_index']             = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2)); // usually: 0x01
1202  
1203                      $atom_structure['modification_date_unix'] = getid3_lib::DateMac2Unix($atom_structure['modification_date']);
1204                      $info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modification_date_unix'];
1205                      break;
1206  
1207  
1208                  case 'crgn': // Clipping ReGioN atom
1209                      $atom_structure['region_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2)); // The Region size, Region boundary box,
1210                      $atom_structure['boundary_box']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 8)); // and Clipping region data fields
1211                      $atom_structure['clipping_data'] =                           substr($atom_data, 10);           // constitute a QuickDraw region.
1212                      break;
1213  
1214  
1215                  case 'load': // track LOAD settings atom
1216                      $atom_structure['preload_start_time'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1217                      $atom_structure['preload_duration']   = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1218                      $atom_structure['preload_flags_raw']  = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1219                      $atom_structure['default_hints_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1220  
1221                      $atom_structure['default_hints']['double_buffer'] = (bool) ($atom_structure['default_hints_raw'] & 0x0020);
1222                      $atom_structure['default_hints']['high_quality']  = (bool) ($atom_structure['default_hints_raw'] & 0x0100);
1223                      break;
1224  
1225  
1226                  case 'tmcd': // TiMe CoDe atom
1227                  case 'chap': // CHAPter list atom
1228                  case 'sync': // SYNChronization atom
1229                  case 'scpt': // tranSCriPT atom
1230                  case 'ssrc': // non-primary SouRCe atom
1231                      for ($i = 0; $i < strlen($atom_data); $i += 4) {
1232                          @$atom_structure['track_id'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1233                      }
1234                      break;
1235  
1236  
1237                  case 'elst': // Edit LiST atom
1238                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1239                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1240                      $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1241                      for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) {
1242                          $atom_structure['edit_list'][$i]['track_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4));
1243                          $atom_structure['edit_list'][$i]['media_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4));
1244                          $atom_structure['edit_list'][$i]['media_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4));
1245                      }
1246                      break;
1247  
1248  
1249                  case 'kmat': // compressed MATte atom
1250                      $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1251                      $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1252                      $atom_structure['matte_data_raw'] =               substr($atom_data,  4);
1253                      break;
1254  
1255  
1256                  case 'ctab': // Color TABle atom
1257                      $atom_structure['color_table_seed']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // hardcoded: 0x00000000
1258                      $atom_structure['color_table_flags']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x8000
1259                      $atom_structure['color_table_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2)) + 1;
1260                      for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {
1261                          $atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2));
1262                          $atom_structure['color_table'][$colortableentry]['red']   = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2));
1263                          $atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2));
1264                          $atom_structure['color_table'][$colortableentry]['blue']  = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2));
1265                      }
1266                      break;
1267  
1268  
1269                  case 'mvhd': // MoVie HeaDer atom
1270                      $atom_structure['version']            =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1271                      $atom_structure['flags_raw']          =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1272                      $atom_structure['creation_time']      =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1273                      $atom_structure['modify_time']        =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1274                      $atom_structure['time_scale']         =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1275                      $atom_structure['duration']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1276                      $atom_structure['preferred_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 20, 4));
1277                      $atom_structure['preferred_volume']   =   getid3_lib::FixedPoint8_8(substr($atom_data, 24, 2));
1278                      $atom_structure['reserved']           =                             substr($atom_data, 26, 10);
1279                      $atom_structure['matrix_a']           = getid3_lib::FixedPoint16_16(substr($atom_data, 36, 4));
1280                      $atom_structure['matrix_b']           = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1281                      $atom_structure['matrix_u']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 44, 4));
1282                      $atom_structure['matrix_c']           = getid3_lib::FixedPoint16_16(substr($atom_data, 48, 4));
1283                      $atom_structure['matrix_d']           = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1284                      $atom_structure['matrix_v']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 56, 4));
1285                      $atom_structure['matrix_x']           = getid3_lib::FixedPoint16_16(substr($atom_data, 60, 4));
1286                      $atom_structure['matrix_y']           = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1287                      $atom_structure['matrix_w']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 68, 4));
1288                      $atom_structure['preview_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 72, 4));
1289                      $atom_structure['preview_duration']   =   getid3_lib::BigEndian2Int(substr($atom_data, 76, 4));
1290                      $atom_structure['poster_time']        =   getid3_lib::BigEndian2Int(substr($atom_data, 80, 4));
1291                      $atom_structure['selection_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 84, 4));
1292                      $atom_structure['selection_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 88, 4));
1293                      $atom_structure['current_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 92, 4));
1294                      $atom_structure['next_track_id']      =   getid3_lib::BigEndian2Int(substr($atom_data, 96, 4));
1295  
1296                      if ($atom_structure['time_scale'] == 0) {
1297                          $this->error('Corrupt Quicktime file: mvhd.time_scale == zero');
1298                          return false;
1299                      }
1300                      $atom_structure['creation_time_unix']        = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1301                      $atom_structure['modify_time_unix']          = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1302                      $info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
1303                      $info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
1304                      $info['quicktime']['time_scale']    = ((isset($info['quicktime']['time_scale']) && ($info['quicktime']['time_scale'] < 1000)) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1305                      $info['quicktime']['display_scale'] = $atom_structure['matrix_a'];
1306                      $info['playtime_seconds']           = $atom_structure['duration'] / $atom_structure['time_scale'];
1307                      break;
1308  
1309  
1310                  case 'tkhd': // TracK HeaDer atom
1311                      $atom_structure['version']             =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1312                      $atom_structure['flags_raw']           =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1313                      $atom_structure['creation_time']       =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1314                      $atom_structure['modify_time']         =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1315                      $atom_structure['trackid']             =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1316                      $atom_structure['reserved1']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1317                      $atom_structure['duration']            =   getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
1318                      $atom_structure['reserved2']           =   getid3_lib::BigEndian2Int(substr($atom_data, 24, 8));
1319                      $atom_structure['layer']               =   getid3_lib::BigEndian2Int(substr($atom_data, 32, 2));
1320                      $atom_structure['alternate_group']     =   getid3_lib::BigEndian2Int(substr($atom_data, 34, 2));
1321                      $atom_structure['volume']              =   getid3_lib::FixedPoint8_8(substr($atom_data, 36, 2));
1322                      $atom_structure['reserved3']           =   getid3_lib::BigEndian2Int(substr($atom_data, 38, 2));
1323                      // http://developer.apple.com/library/mac/#documentation/QuickTime/RM/MovieBasics/MTEditing/K-Chapter/11MatrixFunctions.html
1324                      // http://developer.apple.com/library/mac/#documentation/QuickTime/qtff/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-18737
1325                      $atom_structure['matrix_a']            = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1326                      $atom_structure['matrix_b']            = getid3_lib::FixedPoint16_16(substr($atom_data, 44, 4));
1327                      $atom_structure['matrix_u']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 48, 4));
1328                      $atom_structure['matrix_c']            = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1329                      $atom_structure['matrix_d']            = getid3_lib::FixedPoint16_16(substr($atom_data, 56, 4));
1330                      $atom_structure['matrix_v']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 60, 4));
1331                      $atom_structure['matrix_x']            = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1332                      $atom_structure['matrix_y']            = getid3_lib::FixedPoint16_16(substr($atom_data, 68, 4));
1333                      $atom_structure['matrix_w']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 72, 4));
1334                      $atom_structure['width']               = getid3_lib::FixedPoint16_16(substr($atom_data, 76, 4));
1335                      $atom_structure['height']              = getid3_lib::FixedPoint16_16(substr($atom_data, 80, 4));
1336                      $atom_structure['flags']['enabled']    = (bool) ($atom_structure['flags_raw'] & 0x0001);
1337                      $atom_structure['flags']['in_movie']   = (bool) ($atom_structure['flags_raw'] & 0x0002);
1338                      $atom_structure['flags']['in_preview'] = (bool) ($atom_structure['flags_raw'] & 0x0004);
1339                      $atom_structure['flags']['in_poster']  = (bool) ($atom_structure['flags_raw'] & 0x0008);
1340                      $atom_structure['creation_time_unix']  = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1341                      $atom_structure['modify_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1342                      $info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
1343                      $info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
1344  
1345                      // https://www.getid3.org/phpBB3/viewtopic.php?t=1908
1346                      // attempt to compute rotation from matrix values
1347                      // 2017-Dec-28: uncertain if 90/270 are correctly oriented; values returned by FixedPoint16_16 should perhaps be -1 instead of 65535(?)
1348                      $matrixRotation = 0;
1349                      switch ($atom_structure['matrix_a'].':'.$atom_structure['matrix_b'].':'.$atom_structure['matrix_c'].':'.$atom_structure['matrix_d']) {
1350                          case '1:0:0:1':         $matrixRotation =   0; break;
1351                          case '0:1:65535:0':     $matrixRotation =  90; break;
1352                          case '65535:0:0:65535': $matrixRotation = 180; break;
1353                          case '0:65535:1:0':     $matrixRotation = 270; break;
1354                          default: break;
1355                      }
1356  
1357                      // https://www.getid3.org/phpBB3/viewtopic.php?t=2468
1358                      // The rotation matrix can appear in the Quicktime file multiple times, at least once for each track,
1359                      // and it's possible that only the video track (or, in theory, one of the video tracks) is flagged as
1360                      // rotated while the other tracks (e.g. audio) is tagged as rotation=0 (behavior noted on iPhone 8 Plus)
1361                      // The correct solution would be to check if the TrackID associated with the rotation matrix is indeed
1362                      // a video track (or the main video track) and only set the rotation then, but since information about
1363                      // what track is what is not trivially there to be examined, the lazy solution is to set the rotation
1364                      // if it is found to be nonzero, on the assumption that tracks that don't need it will have rotation set
1365                      // to zero (and be effectively ignored) and the video track will have rotation set correctly, which will
1366                      // either be zero and automatically correct, or nonzero and be set correctly.
1367                      if (!isset($info['video']['rotate']) || (($info['video']['rotate'] == 0) && ($matrixRotation > 0))) {
1368                          $info['quicktime']['video']['rotate'] = $info['video']['rotate'] = $matrixRotation;
1369                      }
1370  
1371                      if ($atom_structure['flags']['enabled'] == 1) {
1372                          if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) {
1373                              $info['video']['resolution_x'] = $atom_structure['width'];
1374                              $info['video']['resolution_y'] = $atom_structure['height'];
1375                          }
1376                          $info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']);
1377                          $info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']);
1378                          $info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
1379                          $info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
1380                      } else {
1381                          // see: https://www.getid3.org/phpBB3/viewtopic.php?t=1295
1382                          //if (isset($info['video']['resolution_x'])) { unset($info['video']['resolution_x']); }
1383                          //if (isset($info['video']['resolution_y'])) { unset($info['video']['resolution_y']); }
1384                          //if (isset($info['quicktime']['video']))    { unset($info['quicktime']['video']);    }
1385                      }
1386                      break;
1387  
1388  
1389                  case 'iods': // Initial Object DeScriptor atom
1390                      // http://www.koders.com/c/fid1FAB3E762903DC482D8A246D4A4BF9F28E049594.aspx?s=windows.h
1391                      // http://libquicktime.sourcearchive.com/documentation/1.0.2plus-pdebian/iods_8c-source.html
1392                      $offset = 0;
1393                      $atom_structure['version']                =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1394                      $offset += 1;
1395                      $atom_structure['flags_raw']              =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 3));
1396                      $offset += 3;
1397                      $atom_structure['mp4_iod_tag']            =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1398                      $offset += 1;
1399                      $atom_structure['length']                 = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1400                      //$offset already adjusted by quicktime_read_mp4_descr_length()
1401                      $atom_structure['object_descriptor_id']   =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));
1402                      $offset += 2;
1403                      $atom_structure['od_profile_level']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1404                      $offset += 1;
1405                      $atom_structure['scene_profile_level']    =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1406                      $offset += 1;
1407                      $atom_structure['audio_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1408                      $offset += 1;
1409                      $atom_structure['video_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1410                      $offset += 1;
1411                      $atom_structure['graphics_profile_level'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1412                      $offset += 1;
1413  
1414                      $atom_structure['num_iods_tracks'] = ($atom_structure['length'] - 7) / 6; // 6 bytes would only be right if all tracks use 1-byte length fields
1415                      for ($i = 0; $i < $atom_structure['num_iods_tracks']; $i++) {
1416                          $atom_structure['track'][$i]['ES_ID_IncTag'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1417                          $offset += 1;
1418                          $atom_structure['track'][$i]['length']       = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1419                          //$offset already adjusted by quicktime_read_mp4_descr_length()
1420                          $atom_structure['track'][$i]['track_id']     =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));
1421                          $offset += 4;
1422                      }
1423  
1424                      $atom_structure['audio_profile_name'] = $this->QuicktimeIODSaudioProfileName($atom_structure['audio_profile_id']);
1425                      $atom_structure['video_profile_name'] = $this->QuicktimeIODSvideoProfileName($atom_structure['video_profile_id']);
1426                      break;
1427  
1428                  case 'ftyp': // FileTYPe (?) atom (for MP4 it seems)
1429                      $atom_structure['signature'] =                           substr($atom_data,  0, 4);
1430                      $atom_structure['unknown_1'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1431                      $atom_structure['fourcc']    =                           substr($atom_data,  8, 4);
1432                      break;
1433  
1434                  case 'mdat': // Media DATa atom
1435                      // 'mdat' contains the actual data for the audio/video, possibly also subtitles
1436  
1437      /* due to lack of known documentation, this is a kludge implementation. If you know of documentation on how mdat is properly structed, please send it to info@getid3.org */
1438  
1439                      // first, skip any 'wide' padding, and second 'mdat' header (with specified size of zero?)
1440                      $mdat_offset = 0;
1441                      while (true) {
1442                          if (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x08".'wide') {
1443                              $mdat_offset += 8;
1444                          } elseif (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x00".'mdat') {
1445                              $mdat_offset += 8;
1446                          } else {
1447                              break;
1448                          }
1449                      }
1450                      if (substr($atom_data, $mdat_offset, 4) == 'GPRO') {
1451                          $GOPRO_chunk_length = getid3_lib::LittleEndian2Int(substr($atom_data, $mdat_offset + 4, 4));
1452                          $GOPRO_offset = 8;
1453                          $atom_structure['GPRO']['raw'] = substr($atom_data, $mdat_offset + 8, $GOPRO_chunk_length - 8);
1454                          $atom_structure['GPRO']['firmware'] = substr($atom_structure['GPRO']['raw'],  0, 15);
1455                          $atom_structure['GPRO']['unknown1'] = substr($atom_structure['GPRO']['raw'], 15, 16);
1456                          $atom_structure['GPRO']['unknown2'] = substr($atom_structure['GPRO']['raw'], 31, 32);
1457                          $atom_structure['GPRO']['unknown3'] = substr($atom_structure['GPRO']['raw'], 63, 16);
1458                          $atom_structure['GPRO']['camera']   = substr($atom_structure['GPRO']['raw'], 79, 32);
1459                          $info['quicktime']['camera']['model'] = rtrim($atom_structure['GPRO']['camera'], "\x00");
1460                      }
1461  
1462                      // check to see if it looks like chapter titles, in the form of unterminated strings with a leading 16-bit size field
1463                      while (($mdat_offset < (strlen($atom_data) - 8))
1464                          && ($chapter_string_length = getid3_lib::BigEndian2Int(substr($atom_data, $mdat_offset, 2)))
1465                          && ($chapter_string_length < 1000)
1466                          && ($chapter_string_length <= (strlen($atom_data) - $mdat_offset - 2))
1467                          && preg_match('#^([\x00-\xFF]{2})([\x20-\xFF]+)$#', substr($atom_data, $mdat_offset, $chapter_string_length + 2), $chapter_matches)) {
1468                              list($dummy, $chapter_string_length_hex, $chapter_string) = $chapter_matches;
1469                              $mdat_offset += (2 + $chapter_string_length);
1470                              @$info['quicktime']['comments']['chapters'][] = $chapter_string;
1471  
1472                              // "encd" atom specifies encoding. In theory could be anything, almost always UTF-8, but may be UTF-16 with BOM (not currently handled)
1473                              if (substr($atom_data, $mdat_offset, 12) == "\x00\x00\x00\x0C\x65\x6E\x63\x64\x00\x00\x01\x00") { // UTF-8
1474                                  $mdat_offset += 12;
1475                              }
1476                      }
1477  
1478                      if (($atomsize > 8) && (!isset($info['avdataend_tmp']) || ($info['quicktime'][$atomname]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {
1479  
1480                          $info['avdataoffset'] = $atom_structure['offset'] + 8;                       // $info['quicktime'][$atomname]['offset'] + 8;
1481                          $OldAVDataEnd         = $info['avdataend'];
1482                          $info['avdataend']    = $atom_structure['offset'] + $atom_structure['size']; // $info['quicktime'][$atomname]['offset'] + $info['quicktime'][$atomname]['size'];
1483  
1484                          $getid3_temp = new getID3();
1485                          $getid3_temp->openfile($this->getid3->filename, $this->getid3->info['filesize'], $this->getid3->fp);
1486                          $getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
1487                          $getid3_temp->info['avdataend']    = $info['avdataend'];
1488                          $getid3_mp3 = new getid3_mp3($getid3_temp);
1489                          if ($getid3_mp3->MPEGaudioHeaderValid($getid3_mp3->MPEGaudioHeaderDecode($this->fread(4)))) {
1490                              $getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
1491                              if (!empty($getid3_temp->info['warning'])) {
1492                                  foreach ($getid3_temp->info['warning'] as $value) {
1493                                      $this->warning($value);
1494                                  }
1495                              }
1496                              if (!empty($getid3_temp->info['mpeg'])) {
1497                                  $info['mpeg'] = $getid3_temp->info['mpeg'];
1498                                  if (isset($info['mpeg']['audio'])) {
1499                                      $info['audio']['dataformat']   = 'mp3';
1500                                      $info['audio']['codec']        = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3')));
1501                                      $info['audio']['sample_rate']  = $info['mpeg']['audio']['sample_rate'];
1502                                      $info['audio']['channels']     = $info['mpeg']['audio']['channels'];
1503                                      $info['audio']['bitrate']      = $info['mpeg']['audio']['bitrate'];
1504                                      $info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);
1505                                      $info['bitrate']               = $info['audio']['bitrate'];
1506                                  }
1507                              }
1508                          }
1509                          unset($getid3_mp3, $getid3_temp);
1510                          $info['avdataend'] = $OldAVDataEnd;
1511                          unset($OldAVDataEnd);
1512  
1513                      }
1514  
1515                      unset($mdat_offset, $chapter_string_length, $chapter_matches);
1516                      break;
1517  
1518                  case 'free': // FREE space atom
1519                  case 'skip': // SKIP atom
1520                  case 'wide': // 64-bit expansion placeholder atom
1521                      // 'free', 'skip' and 'wide' are just padding, contains no useful data at all
1522  
1523                      // When writing QuickTime files, it is sometimes necessary to update an atom's size.
1524                      // It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom
1525                      // is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime
1526                      // puts an 8-byte placeholder atom before any atoms it may have to update the size of.
1527                      // In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the
1528                      // placeholder atom can be overwritten to obtain the necessary 8 extra bytes.
1529                      // The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).
1530                      break;
1531  
1532  
1533                  case 'nsav': // NoSAVe atom
1534                      // http://developer.apple.com/technotes/tn/tn2038.html
1535                      $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1536                      break;
1537  
1538                  case 'ctyp': // Controller TYPe atom (seen on QTVR)
1539                      // http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
1540                      // some controller names are:
1541                      //   0x00 + 'std' for linear movie
1542                      //   'none' for no controls
1543                      $atom_structure['ctyp'] = substr($atom_data, 0, 4);
1544                      $info['quicktime']['controller'] = $atom_structure['ctyp'];
1545                      switch ($atom_structure['ctyp']) {
1546                          case 'qtvr':
1547                              $info['video']['dataformat'] = 'quicktimevr';
1548                              break;
1549                      }
1550                      break;
1551  
1552                  case 'pano': // PANOrama track (seen on QTVR)
1553                      $atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1554                      break;
1555  
1556                  case 'hint': // HINT track
1557                  case 'hinf': //
1558                  case 'hinv': //
1559                  case 'hnti': //
1560                      $info['quicktime']['hinting'] = true;
1561                      break;
1562  
1563                  case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR)
1564                      for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) {
1565                          $atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1566                      }
1567                      break;
1568  
1569  
1570                  // Observed-but-not-handled atom types are just listed here to prevent warnings being generated
1571                  case 'FXTC': // Something to do with Adobe After Effects (?)
1572                  case 'PrmA':
1573                  case 'code':
1574                  case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html
1575                  case 'tapt': // TrackApertureModeDimensionsAID - http://developer.apple.com/documentation/QuickTime/Reference/QT7-1_Update_Reference/Constants/Constants.html
1576                              // tapt seems to be used to compute the video size [https://www.getid3.org/phpBB3/viewtopic.php?t=838]
1577                              // * http://lists.apple.com/archives/quicktime-api/2006/Aug/msg00014.html
1578                              // * http://handbrake.fr/irclogs/handbrake-dev/handbrake-dev20080128_pg2.html
1579                  case 'ctts'://  STCompositionOffsetAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1580                  case 'cslg'://  STCompositionShiftLeastGreatestAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1581                  case 'sdtp'://  STSampleDependencyAID              - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1582                  case 'stps'://  STPartialSyncSampleAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1583                      //$atom_structure['data'] = $atom_data;
1584                      break;
1585  
1586                  case "\xA9".'xyz':  // GPS latitude+longitude+altitude
1587                      $atom_structure['data'] = $atom_data;
1588                      if (preg_match('#([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)?/$#i', $atom_data, $matches)) {
1589                          @list($all, $latitude, $longitude, $altitude) = $matches;
1590                          $info['quicktime']['comments']['gps_latitude'][]  = floatval($latitude);
1591                          $info['quicktime']['comments']['gps_longitude'][] = floatval($longitude);
1592                          if (!empty($altitude)) {
1593                              $info['quicktime']['comments']['gps_altitude'][] = floatval($altitude);
1594                          }
1595                      } else {
1596                          $this->warning('QuickTime atom "©xyz" data does not match expected data pattern at offset '.$baseoffset.'. Please report as getID3() bug.');
1597                      }
1598                      break;
1599  
1600                  case 'NCDT':
1601                      // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1602                      // Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
1603                      $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
1604                      break;
1605                  case 'NCTH': // Nikon Camera THumbnail image
1606                  case 'NCVW': // Nikon Camera preVieW image
1607                      // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1608                      if (preg_match('/^\xFF\xD8\xFF/', $atom_data)) {
1609                          $atom_structure['data'] = $atom_data;
1610                          $atom_structure['image_mime'] = 'image/jpeg';
1611                          $atom_structure['description'] = (($atomname == 'NCTH') ? 'Nikon Camera Thumbnail Image' : (($atomname == 'NCVW') ? 'Nikon Camera Preview Image' : 'Nikon preview image'));
1612                          $info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_data, 'description'=>$atom_structure['description']);
1613                      }
1614                      break;
1615                  case 'NCTG': // Nikon - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
1616                      $atom_structure['data'] = $this->QuicktimeParseNikonNCTG($atom_data);
1617                      break;
1618                  case 'NCHD': // Nikon:MakerNoteVersion  - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1619                  case 'NCDB': // Nikon                   - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1620                  case 'CNCV': // Canon:CompressorVersion - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html
1621                      $atom_structure['data'] = $atom_data;
1622                      break;
1623  
1624                  case "\x00\x00\x00\x00":
1625                      // some kind of metacontainer, may contain a big data dump such as:
1626                      // mdta keys \005 mdtacom.apple.quicktime.make (mdtacom.apple.quicktime.creationdate ,mdtacom.apple.quicktime.location.ISO6709 $mdtacom.apple.quicktime.software !mdtacom.apple.quicktime.model ilst \01D \001 \015data \001DE\010Apple 0 \002 (data \001DE\0102011-05-11T17:54:04+0200 2 \003 *data \001DE\010+52.4936+013.3897+040.247/ \01D \004 \015data \001DE\0104.3.1 \005 \018data \001DE\010iPhone 4
1627                      // http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
1628  
1629                      $atom_structure['version']   =          getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
1630                      $atom_structure['flags_raw'] =          getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
1631                      $atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom(substr($atom_data, 4), $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1632                      //$atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1633                      break;
1634  
1635                  case 'meta': // METAdata atom
1636                      // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
1637  
1638                      $atom_structure['version']   =          getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
1639                      $atom_structure['flags_raw'] =          getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
1640                      $atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1641                      break;
1642  
1643                  case 'data': // metaDATA atom
1644                      static $metaDATAkey = 1; // real ugly, but so is the QuickTime structure that stores keys and values in different multinested locations that are hard to relate to each other
1645                      // seems to be 2 bytes language code (ASCII), 2 bytes unknown (set to 0x10B5 in sample I have), remainder is useful data
1646                      $atom_structure['language'] =                           substr($atom_data, 4 + 0, 2);
1647                      $atom_structure['unknown']  = getid3_lib::BigEndian2Int(substr($atom_data, 4 + 2, 2));
1648                      $atom_structure['data']     =                           substr($atom_data, 4 + 4);
1649                      $atom_structure['key_name'] = @$info['quicktime']['temp_meta_key_names'][$metaDATAkey++];
1650  
1651                      if ($atom_structure['key_name'] && $atom_structure['data']) {
1652                          @$info['quicktime']['comments'][str_replace('com.apple.quicktime.', '', $atom_structure['key_name'])][] = $atom_structure['data'];
1653                      }
1654                      break;
1655  
1656                  case 'keys': // KEYS that may be present in the metadata atom.
1657                      // https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html#//apple_ref/doc/uid/TP40000939-CH1-SW21
1658                      // The metadata item keys atom holds a list of the metadata keys that may be present in the metadata atom.
1659                      // This list is indexed starting with 1; 0 is a reserved index value. The metadata item keys atom is a full atom with an atom type of "keys".
1660                      $atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1661                      $atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1662                      $atom_structure['entry_count']   = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1663                      $keys_atom_offset = 8;
1664                      for ($i = 1; $i <= $atom_structure['entry_count']; $i++) {
1665                          $atom_structure['keys'][$i]['key_size']      = getid3_lib::BigEndian2Int(substr($atom_data, $keys_atom_offset + 0, 4));
1666                          $atom_structure['keys'][$i]['key_namespace'] =                           substr($atom_data, $keys_atom_offset + 4, 4);
1667                          $atom_structure['keys'][$i]['key_value']     =                           substr($atom_data, $keys_atom_offset + 8, $atom_structure['keys'][$i]['key_size'] - 8);
1668                          $keys_atom_offset += $atom_structure['keys'][$i]['key_size']; // key_size includes the 4+4 bytes for key_size and key_namespace
1669  
1670                          $info['quicktime']['temp_meta_key_names'][$i] = $atom_structure['keys'][$i]['key_value'];
1671                      }
1672                      break;
1673  
1674                  case 'uuid': // user-defined atom often seen containing XML data, also used for potentially many other purposes, only a few specifically handled by getID3 (e.g. 360fly spatial data)
1675                      //Get the UUID ID in first 16 bytes
1676                      $uuid_bytes_read = unpack('H8time_low/H4time_mid/H4time_hi/H4clock_seq_hi/H12clock_seq_low', substr($atom_data, 0, 16));
1677                      $atom_structure['uuid_field_id'] = implode('-', $uuid_bytes_read);
1678  
1679                      switch ($atom_structure['uuid_field_id']) {   // http://fileformats.archiveteam.org/wiki/Boxes/atoms_format#UUID_boxes
1680  
1681                          case '0537cdab-9d0c-4431-a72a-fa561f2a113e': // Exif                                       - http://fileformats.archiveteam.org/wiki/Exif
1682                          case '2c4c0100-8504-40b9-a03e-562148d6dfeb': // Photoshop Image Resources                  - http://fileformats.archiveteam.org/wiki/Photoshop_Image_Resources
1683                          case '33c7a4d2-b81d-4723-a0ba-f1a3e097ad38': // IPTC-IIM                                   - http://fileformats.archiveteam.org/wiki/IPTC-IIM
1684                          case '8974dbce-7be7-4c51-84f9-7148f9882554': // PIFF Track Encryption Box                  - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
1685                          case '96a9f1f1-dc98-402d-a7ae-d68e34451809': // GeoJP2 World File Box                      - http://fileformats.archiveteam.org/wiki/GeoJP2
1686                          case 'a2394f52-5a9b-4f14-a244-6c427c648df4': // PIFF Sample Encryption Box                 - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
1687                          case 'b14bf8bd-083d-4b43-a5ae-8cd7d5a6ce03': // GeoJP2 GeoTIFF Box                         - http://fileformats.archiveteam.org/wiki/GeoJP2
1688                          case 'd08a4f18-10f3-4a82-b6c8-32d8aba183d3': // PIFF Protection System Specific Header Box - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
1689                              $this->warning('Unhandled (but recognized) "uuid" atom identified by "'.$atom_structure['uuid_field_id'].'" at offset '.$atom_structure['offset'].' ('.strlen($atom_data).' bytes)');
1690                              break;
1691  
1692                          case 'be7acfcb-97a9-42e8-9c71-999491e3afac': // XMP data (in XML format)
1693                              $atom_structure['xml'] = substr($atom_data, 16, strlen($atom_data) - 16 - 8); // 16 bytes for UUID, 8 bytes header(?)
1694                              break;
1695  
1696                          case 'efe1589a-bb77-49ef-8095-27759eb1dc6f': // 360fly data
1697                              /* 360fly code in this block by Paul Lewis 2019-Oct-31 */
1698                              /*    Sensor Timestamps need to be calculated using the recordings base time at ['quicktime']['moov']['subatoms'][0]['creation_time_unix']. */
1699                              $atom_structure['title'] = '360Fly Sensor Data';
1700  
1701                              //Get the UUID HEADER data
1702                              $uuid_bytes_read = unpack('vheader_size/vheader_version/vtimescale/vhardware_version/x/x/x/x/x/x/x/x/x/x/x/x/x/x/x/x/', substr($atom_data, 16, 32));
1703                              $atom_structure['uuid_header'] = $uuid_bytes_read;
1704  
1705                              $start_byte = 48;
1706                              $atom_SENSOR_data = substr($atom_data, $start_byte);
1707                              $atom_structure['sensor_data']['data_type'] = array(
1708                                      'fusion_count'   => 0,       // ID 250
1709                                      'fusion_data'    => array(),
1710                                      'accel_count'    => 0,       // ID 1
1711                                      'accel_data'     => array(),
1712                                      'gyro_count'     => 0,       // ID 2
1713                                      'gyro_data'      => array(),
1714                                      'magno_count'    => 0,       // ID 3
1715                                      'magno_data'     => array(),
1716                                      'gps_count'      => 0,       // ID 5
1717                                      'gps_data'       => array(),
1718                                      'rotation_count' => 0,       // ID 6
1719                                      'rotation_data'  => array(),
1720                                      'unknown_count'  => 0,       // ID ??
1721                                      'unknown_data'   => array(),
1722                                      'debug_list'     => '',      // Used to debug variables stored as comma delimited strings
1723                              );
1724                              $debug_structure['debug_items'] = array();
1725                              // Can start loop here to decode all sensor data in 32 Byte chunks:
1726                              foreach (str_split($atom_SENSOR_data, 32) as $sensor_key => $sensor_data) {
1727                                  // This gets me a data_type code to work out what data is in the next 31 bytes.
1728                                  $sensor_data_type = substr($sensor_data, 0, 1);
1729                                  $sensor_data_content = substr($sensor_data, 1);
1730                                  $uuid_bytes_read = unpack('C*', $sensor_data_type);
1731                                  $sensor_data_array = array();
1732                                  switch ($uuid_bytes_read[1]) {
1733                                      case 250:
1734                                          $atom_structure['sensor_data']['data_type']['fusion_count']++;
1735                                          $uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
1736                                          $sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1737                                          $sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1738                                          $sensor_data_array['yaw']       = $uuid_bytes_read['yaw'];
1739                                          $sensor_data_array['pitch']     = $uuid_bytes_read['pitch'];
1740                                          $sensor_data_array['roll']      = $uuid_bytes_read['roll'];
1741                                          array_push($atom_structure['sensor_data']['data_type']['fusion_data'], $sensor_data_array);
1742                                          break;
1743                                      case 1:
1744                                          $atom_structure['sensor_data']['data_type']['accel_count']++;
1745                                          $uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
1746                                          $sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1747                                          $sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1748                                          $sensor_data_array['yaw']       = $uuid_bytes_read['yaw'];
1749                                          $sensor_data_array['pitch']     = $uuid_bytes_read['pitch'];
1750                                          $sensor_data_array['roll']      = $uuid_bytes_read['roll'];
1751                                          array_push($atom_structure['sensor_data']['data_type']['accel_data'], $sensor_data_array);
1752                                          break;
1753                                      case 2:
1754                                          $atom_structure['sensor_data']['data_type']['gyro_count']++;
1755                                          $uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
1756                                          $sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1757                                          $sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1758                                          $sensor_data_array['yaw']       = $uuid_bytes_read['yaw'];
1759                                          $sensor_data_array['pitch']     = $uuid_bytes_read['pitch'];
1760                                          $sensor_data_array['roll']      = $uuid_bytes_read['roll'];
1761                                          array_push($atom_structure['sensor_data']['data_type']['gyro_data'], $sensor_data_array);
1762                                          break;
1763                                      case 3:
1764                                          $atom_structure['sensor_data']['data_type']['magno_count']++;
1765                                          $uuid_bytes_read = unpack('cmode/Jtimestamp/Gmagx/Gmagy/Gmagz/x*', $sensor_data_content);
1766                                          $sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1767                                          $sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1768                                          $sensor_data_array['magx']      = $uuid_bytes_read['magx'];
1769                                          $sensor_data_array['magy']      = $uuid_bytes_read['magy'];
1770                                          $sensor_data_array['magz']      = $uuid_bytes_read['magz'];
1771                                          array_push($atom_structure['sensor_data']['data_type']['magno_data'], $sensor_data_array);
1772                                          break;
1773                                      case 5:
1774                                          $atom_structure['sensor_data']['data_type']['gps_count']++;
1775                                          $uuid_bytes_read = unpack('cmode/Jtimestamp/Glat/Glon/Galt/Gspeed/nbearing/nacc/x*', $sensor_data_content);
1776                                          $sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1777                                          $sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1778                                          $sensor_data_array['lat']       = $uuid_bytes_read['lat'];
1779                                          $sensor_data_array['lon']       = $uuid_bytes_read['lon'];
1780                                          $sensor_data_array['alt']       = $uuid_bytes_read['alt'];
1781                                          $sensor_data_array['speed']     = $uuid_bytes_read['speed'];
1782                                          $sensor_data_array['bearing']   = $uuid_bytes_read['bearing'];
1783                                          $sensor_data_array['acc']       = $uuid_bytes_read['acc'];
1784                                          array_push($atom_structure['sensor_data']['data_type']['gps_data'], $sensor_data_array);
1785                                          //array_push($debug_structure['debug_items'], $uuid_bytes_read['timestamp']);
1786                                          break;
1787                                      case 6:
1788                                          $atom_structure['sensor_data']['data_type']['rotation_count']++;
1789                                          $uuid_bytes_read = unpack('cmode/Jtimestamp/Grotx/Groty/Grotz/x*', $sensor_data_content);
1790                                          $sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1791                                          $sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1792                                          $sensor_data_array['rotx']      = $uuid_bytes_read['rotx'];
1793                                          $sensor_data_array['roty']      = $uuid_bytes_read['roty'];
1794                                          $sensor_data_array['rotz']      = $uuid_bytes_read['rotz'];
1795                                          array_push($atom_structure['sensor_data']['data_type']['rotation_data'], $sensor_data_array);
1796                                          break;
1797                                      default:
1798                                          $atom_structure['sensor_data']['data_type']['unknown_count']++;
1799                                          break;
1800                                  }
1801                              }
1802                              //if (isset($debug_structure['debug_items']) && count($debug_structure['debug_items']) > 0) {
1803                              //    $atom_structure['sensor_data']['data_type']['debug_list'] = implode(',', $debug_structure['debug_items']);
1804                              //} else {
1805                                  $atom_structure['sensor_data']['data_type']['debug_list'] = 'No debug items in list!';
1806                              //}
1807                              break;
1808  
1809                          default:
1810                              $this->warning('Unhandled "uuid" atom identified by "'.$atom_structure['uuid_field_id'].'" at offset '.$atom_structure['offset'].' ('.strlen($atom_data).' bytes)');
1811                      }
1812                      break;
1813  
1814                  case 'gps ':
1815                      // https://dashcamtalk.com/forum/threads/script-to-extract-gps-data-from-novatek-mp4.20808/page-2#post-291730
1816                      // The 'gps ' contains simple look up table made up of 8byte rows, that point to the 'free' atoms that contains the actual GPS data.
1817                      // The first row is version/metadata/notsure, I skip that.
1818                      // The following rows consist of 4byte address (absolute) and 4byte size (0x1000), these point to the GPS data in the file.
1819  
1820                      $GPS_rowsize = 8; // 4 bytes for offset, 4 bytes for size
1821                      if (strlen($atom_data) > 0) {
1822                          if ((strlen($atom_data) % $GPS_rowsize) == 0) {
1823                              $atom_structure['gps_toc'] = array();
1824                              foreach (str_split($atom_data, $GPS_rowsize) as $counter => $datapair) {
1825                                  $atom_structure['gps_toc'][] = unpack('Noffset/Nsize', substr($atom_data, $counter * $GPS_rowsize, $GPS_rowsize));
1826                              }
1827  
1828                              $atom_structure['gps_entries'] = array();
1829                              $previous_offset = $this->ftell();
1830                              foreach ($atom_structure['gps_toc'] as $key => $gps_pointer) {
1831                                  if ($key == 0) {
1832                                      // "The first row is version/metadata/notsure, I skip that."
1833                                      continue;
1834                                  }
1835                                  $this->fseek($gps_pointer['offset']);
1836                                  $GPS_free_data = $this->fread($gps_pointer['size']);
1837  
1838                                  /*
1839                                  // 2017-05-10: I see some of the data, notably the Hour-Minute-Second, but cannot reconcile the rest of the data. However, the NMEA "GPRMC" line is there and relatively easy to parse, so I'm using that instead
1840  
1841                                  // https://dashcamtalk.com/forum/threads/script-to-extract-gps-data-from-novatek-mp4.20808/page-2#post-291730
1842                                  // The structure of the GPS data atom (the 'free' atoms mentioned above) is following:
1843                                  // hour,minute,second,year,month,day,active,latitude_b,longitude_b,unknown2,latitude,longitude,speed = struct.unpack_from('<IIIIIIssssfff',data, 48)
1844                                  // For those unfamiliar with python struct:
1845                                  // I = int
1846                                  // s = is string (size 1, in this case)
1847                                  // f = float
1848  
1849                                  //$atom_structure['gps_entries'][$key] = unpack('Vhour/Vminute/Vsecond/Vyear/Vmonth/Vday/Vactive/Vlatitude_b/Vlongitude_b/Vunknown2/flatitude/flongitude/fspeed', substr($GPS_free_data, 48));
1850                                  */
1851  
1852                                  // $GPRMC,081836,A,3751.65,S,14507.36,E,000.0,360.0,130998,011.3,E*62
1853                                  // $GPRMC,183731,A,3907.482,N,12102.436,W,000.0,360.0,080301,015.5,E*67
1854                                  // $GPRMC,002454,A,3553.5295,N,13938.6570,E,0.0,43.1,180700,7.1,W,A*3F
1855                                  // $GPRMC,094347.000,A,5342.0061,N,00737.9908,W,0.01,156.75,140217,,,A*7D
1856                                  if (preg_match('#\\$GPRMC,([0-9\\.]*),([AV]),([0-9\\.]*),([NS]),([0-9\\.]*),([EW]),([0-9\\.]*),([0-9\\.]*),([0-9]*),([0-9\\.]*),([EW]?)(,[A])?(\\*[0-9A-F]{2})#', $GPS_free_data, $matches)) {
1857                                      $GPS_this_GPRMC = array();
1858                                      $GPS_this_GPRMC_raw = array();
1859                                      list(
1860                                          $GPS_this_GPRMC_raw['gprmc'],
1861                                          $GPS_this_GPRMC_raw['timestamp'],
1862                                          $GPS_this_GPRMC_raw['status'],
1863                                          $GPS_this_GPRMC_raw['latitude'],
1864                                          $GPS_this_GPRMC_raw['latitude_direction'],
1865                                          $GPS_this_GPRMC_raw['longitude'],
1866                                          $GPS_this_GPRMC_raw['longitude_direction'],
1867                                          $GPS_this_GPRMC_raw['knots'],
1868                                          $GPS_this_GPRMC_raw['angle'],
1869                                          $GPS_this_GPRMC_raw['datestamp'],
1870                                          $GPS_this_GPRMC_raw['variation'],
1871                                          $GPS_this_GPRMC_raw['variation_direction'],
1872                                          $dummy,
1873                                          $GPS_this_GPRMC_raw['checksum'],
1874                                      ) = $matches;
1875                                      $GPS_this_GPRMC['raw'] = $GPS_this_GPRMC_raw;
1876  
1877                                      $hour   = substr($GPS_this_GPRMC['raw']['timestamp'], 0, 2);
1878                                      $minute = substr($GPS_this_GPRMC['raw']['timestamp'], 2, 2);
1879                                      $second = substr($GPS_this_GPRMC['raw']['timestamp'], 4, 2);
1880                                      $ms     = substr($GPS_this_GPRMC['raw']['timestamp'], 6);    // may contain decimal seconds
1881                                      $day    = substr($GPS_this_GPRMC['raw']['datestamp'], 0, 2);
1882                                      $month  = substr($GPS_this_GPRMC['raw']['datestamp'], 2, 2);
1883                                      $year   = (int) substr($GPS_this_GPRMC['raw']['datestamp'], 4, 2);
1884                                      $year += (($year > 90) ? 1900 : 2000); // complete lack of foresight: datestamps are stored with 2-digit years, take best guess
1885                                      $GPS_this_GPRMC['timestamp'] = $year.'-'.$month.'-'.$day.' '.$hour.':'.$minute.':'.$second.$ms;
1886  
1887                                      $GPS_this_GPRMC['active'] = ($GPS_this_GPRMC['raw']['status'] == 'A'); // A=Active,V=Void
1888  
1889                                      foreach (array('latitude','longitude') as $latlon) {
1890                                          preg_match('#^([0-9]{1,3})([0-9]{2}\\.[0-9]+)$#', $GPS_this_GPRMC['raw'][$latlon], $matches);
1891                                          list($dummy, $deg, $min) = $matches;
1892                                          $GPS_this_GPRMC[$latlon] = $deg + ($min / 60);
1893                                      }
1894                                      $GPS_this_GPRMC['latitude']  *= (($GPS_this_GPRMC['raw']['latitude_direction']  == 'S') ? -1 : 1);
1895                                      $GPS_this_GPRMC['longitude'] *= (($GPS_this_GPRMC['raw']['longitude_direction'] == 'W') ? -1 : 1);
1896  
1897                                      $GPS_this_GPRMC['heading']    = $GPS_this_GPRMC['raw']['angle'];
1898                                      $GPS_this_GPRMC['speed_knot'] = $GPS_this_GPRMC['raw']['knots'];
1899                                      $GPS_this_GPRMC['speed_kmh']  = $GPS_this_GPRMC['raw']['knots'] * 1.852;
1900                                      if ($GPS_this_GPRMC['raw']['variation']) {
1901                                          $GPS_this_GPRMC['variation']  = $GPS_this_GPRMC['raw']['variation'];
1902                                          $GPS_this_GPRMC['variation'] *= (($GPS_this_GPRMC['raw']['variation_direction'] == 'W') ? -1 : 1);
1903                                      }
1904  
1905                                      $atom_structure['gps_entries'][$key] = $GPS_this_GPRMC;
1906  
1907                                      @$info['quicktime']['gps_track'][$GPS_this_GPRMC['timestamp']] = array(
1908                                          'latitude'  => (float) $GPS_this_GPRMC['latitude'],
1909                                          'longitude' => (float) $GPS_this_GPRMC['longitude'],
1910                                          'speed_kmh' => (float) $GPS_this_GPRMC['speed_kmh'],
1911                                          'heading'   => (float) $GPS_this_GPRMC['heading'],
1912                                      );
1913  
1914                                  } else {
1915                                      $this->warning('Unhandled GPS format in "free" atom at offset '.$gps_pointer['offset']);
1916                                  }
1917                              }
1918                              $this->fseek($previous_offset);
1919  
1920                          } else {
1921                              $this->warning('QuickTime atom "'.$atomname.'" is not mod-8 bytes long ('.$atomsize.' bytes) at offset '.$baseoffset);
1922                          }
1923                      } else {
1924                          $this->warning('QuickTime atom "'.$atomname.'" is zero bytes long at offset '.$baseoffset);
1925                      }
1926                      break;
1927  
1928                  case 'loci':// 3GP location (El Loco)
1929                      $loffset = 0;
1930                      $info['quicktime']['comments']['gps_flags']     = array(  getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)));
1931                      $info['quicktime']['comments']['gps_lang']      = array(  getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)));
1932                      $info['quicktime']['comments']['gps_location']  = array(          $this->LociString(substr($atom_data, 6), $loffset));
1933                      $loci_data = substr($atom_data, 6 + $loffset);
1934                      $info['quicktime']['comments']['gps_role']      = array(  getid3_lib::BigEndian2Int(substr($loci_data, 0, 1)));
1935                      $info['quicktime']['comments']['gps_longitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 1, 4)));
1936                      $info['quicktime']['comments']['gps_latitude']  = array(getid3_lib::FixedPoint16_16(substr($loci_data, 5, 4)));
1937                      $info['quicktime']['comments']['gps_altitude']  = array(getid3_lib::FixedPoint16_16(substr($loci_data, 9, 4)));
1938                      $info['quicktime']['comments']['gps_body']      = array(          $this->LociString(substr($loci_data, 13           ), $loffset));
1939                      $info['quicktime']['comments']['gps_notes']     = array(          $this->LociString(substr($loci_data, 13 + $loffset), $loffset));
1940                      break;
1941  
1942                  case 'chpl': // CHaPter List
1943                      // https://www.adobe.com/content/dam/Adobe/en/devnet/flv/pdfs/video_file_format_spec_v10.pdf
1944                      $chpl_version = getid3_lib::BigEndian2Int(substr($atom_data, 4, 1)); // Expected to be 0
1945                      $chpl_flags   = getid3_lib::BigEndian2Int(substr($atom_data, 5, 3)); // Reserved, set to 0
1946                      $chpl_count   = getid3_lib::BigEndian2Int(substr($atom_data, 8, 1));
1947                      $chpl_offset = 9;
1948                      for ($i = 0; $i < $chpl_count; $i++) {
1949                          if (($chpl_offset + 9) >= strlen($atom_data)) {
1950                              $this->warning('QuickTime chapter '.$i.' extends beyond end of "chpl" atom');
1951                              break;
1952                          }
1953                          $info['quicktime']['chapters'][$i]['timestamp'] = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 8)) / 10000000; // timestamps are stored as 100-nanosecond units
1954                          $chpl_offset += 8;
1955                          $chpl_title_size = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 1));
1956                          $chpl_offset += 1;
1957                          $info['quicktime']['chapters'][$i]['title']     =                           substr($atom_data, $chpl_offset, $chpl_title_size);
1958                          $chpl_offset += $chpl_title_size;
1959                      }
1960                      break;
1961  
1962                  case 'FIRM': // FIRMware version(?), seen on GoPro Hero4
1963                      $info['quicktime']['camera']['firmware'] = $atom_data;
1964                      break;
1965  
1966                  case 'CAME': // FIRMware version(?), seen on GoPro Hero4
1967                      $info['quicktime']['camera']['serial_hash'] = unpack('H*', $atom_data);
1968                      break;
1969  
1970                  case 'dscp':
1971                  case 'rcif':
1972                      // https://www.getid3.org/phpBB3/viewtopic.php?t=1908
1973                      if (substr($atom_data, 0, 7) == "\x00\x00\x00\x00\x55\xC4".'{') {
1974                          if ($json_decoded = @json_decode(rtrim(substr($atom_data, 6), "\x00"), true)) {
1975                              $info['quicktime']['camera'][$atomname] = $json_decoded;
1976                              if (($atomname == 'rcif') && isset($info['quicktime']['camera']['rcif']['wxcamera']['rotate'])) {
1977                                  $info['video']['rotate'] = $info['quicktime']['video']['rotate'] = $info['quicktime']['camera']['rcif']['wxcamera']['rotate'];
1978                              }
1979                          } else {
1980                              $this->warning('Failed to JSON decode atom "'.$atomname.'"');
1981                              $atom_structure['data'] = $atom_data;
1982                          }
1983                          unset($json_decoded);
1984                      } else {
1985                          $this->warning('Expecting 55 C4 7B at start of atom "'.$atomname.'", found '.getid3_lib::PrintHexBytes(substr($atom_data, 4, 3)).' instead');
1986                          $atom_structure['data'] = $atom_data;
1987                      }
1988                      break;
1989  
1990                  case 'frea':
1991                      // https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
1992                      // may contain "scra" (PreviewImage) and/or "thma" (ThumbnailImage)
1993                      $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
1994                      break;
1995                  case 'tima': // subatom to "frea"
1996                      // no idea what this does, the one sample file I've seen has a value of 0x00000027
1997                      $atom_structure['data'] = $atom_data;
1998                      break;
1999                  case 'ver ': // subatom to "frea"
2000                      // some kind of version number, the one sample file I've seen has a value of "3.00.073"
2001                      $atom_structure['data'] = $atom_data;
2002                      break;
2003                  case 'thma': // subatom to "frea" -- "ThumbnailImage"
2004                      // https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
2005                      if (strlen($atom_data) > 0) {
2006                          $info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'ThumbnailImage');
2007                      }
2008                      break;
2009                  case 'scra': // subatom to "frea" -- "PreviewImage"
2010                      // https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
2011                      // but the only sample file I've seen has no useful data here
2012                      if (strlen($atom_data) > 0) {
2013                          $info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'PreviewImage');
2014                      }
2015                      break;
2016  
2017                  case 'cdsc': // timed metadata reference
2018                      // A QuickTime movie can contain none, one, or several timed metadata tracks. Timed metadata tracks can refer to multiple tracks.
2019                      // Metadata tracks are linked to the tracks they describe using a track-reference of type 'cdsc'. The metadata track holds the 'cdsc' track reference.
2020                      $atom_structure['track_number'] = getid3_lib::BigEndian2Int($atom_data);
2021                      break;
2022  
2023                  default:
2024                      $this->warning('Unknown QuickTime atom type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" ('.trim(getid3_lib::PrintHexBytes($atomname)).'), '.$atomsize.' bytes at offset '.$baseoffset);
2025                      $atom_structure['data'] = $atom_data;
2026                      break;
2027              }
2028          }
2029          array_pop($atomHierarchy);
2030          return $atom_structure;
2031      }
2032  
2033      /**
2034       * @param string $atom_data
2035       * @param int    $baseoffset
2036       * @param array  $atomHierarchy
2037       * @param bool   $ParseAllPossibleAtoms
2038       *
2039       * @return array|false
2040       */
2041  	public function QuicktimeParseContainerAtom($atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
2042          $atom_structure  = false;
2043          $subatomoffset  = 0;
2044          $subatomcounter = 0;
2045          if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {
2046              return false;
2047          }
2048          while ($subatomoffset < strlen($atom_data)) {
2049              $subatomsize = getid3_lib::BigEndian2Int(substr($atom_data, $subatomoffset + 0, 4));
2050              $subatomname =                           substr($atom_data, $subatomoffset + 4, 4);
2051              $subatomdata =                           substr($atom_data, $subatomoffset + 8, $subatomsize - 8);
2052              if ($subatomsize == 0) {
2053                  // Furthermore, for historical reasons the list of atoms is optionally
2054                  // terminated by a 32-bit integer set to 0. If you are writing a program
2055                  // to read user data atoms, you should allow for the terminating 0.
2056                  if (strlen($atom_data) > 12) {
2057                      $subatomoffset += 4;
2058                      continue;
2059                  }
2060                  return $atom_structure;
2061              }
2062              if (strlen($subatomdata) < ($subatomsize - 8)) {
2063                  // we don't have enough data to decode the subatom.
2064                  // this may be because we are refusing to parse large subatoms, or it may be because this atom had its size set too large
2065                  // so we passed in the start of a following atom incorrectly?
2066                  return $atom_structure;
2067              }
2068              $atom_structure[$subatomcounter++] = $this->QuicktimeParseAtom($subatomname, $subatomsize, $subatomdata, $baseoffset + $subatomoffset, $atomHierarchy, $ParseAllPossibleAtoms);
2069              $subatomoffset += $subatomsize;
2070          }
2071          return $atom_structure;
2072      }
2073  
2074      /**
2075       * @param string $data
2076       * @param int    $offset
2077       *
2078       * @return int
2079       */
2080  	public function quicktime_read_mp4_descr_length($data, &$offset) {
2081          // http://libquicktime.sourcearchive.com/documentation/2:1.0.2plus-pdebian-2build1/esds_8c-source.html
2082          $num_bytes = 0;
2083          $length    = 0;
2084          do {
2085              $b = ord(substr($data, $offset++, 1));
2086              $length = ($length << 7) | ($b & 0x7F);
2087          } while (($b & 0x80) && ($num_bytes++ < 4));
2088          return $length;
2089      }
2090  
2091      /**
2092       * @param int $languageid
2093       *
2094       * @return string
2095       */
2096  	public function QuicktimeLanguageLookup($languageid) {
2097          // http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-34353
2098          static $QuicktimeLanguageLookup = array();
2099          if (empty($QuicktimeLanguageLookup)) {
2100              $QuicktimeLanguageLookup[0]     = 'English';
2101              $QuicktimeLanguageLookup[1]     = 'French';
2102              $QuicktimeLanguageLookup[2]     = 'German';
2103              $QuicktimeLanguageLookup[3]     = 'Italian';
2104              $QuicktimeLanguageLookup[4]     = 'Dutch';
2105              $QuicktimeLanguageLookup[5]     = 'Swedish';
2106              $QuicktimeLanguageLookup[6]     = 'Spanish';
2107              $QuicktimeLanguageLookup[7]     = 'Danish';
2108              $QuicktimeLanguageLookup[8]     = 'Portuguese';
2109              $QuicktimeLanguageLookup[9]     = 'Norwegian';
2110              $QuicktimeLanguageLookup[10]    = 'Hebrew';
2111              $QuicktimeLanguageLookup[11]    = 'Japanese';
2112              $QuicktimeLanguageLookup[12]    = 'Arabic';
2113              $QuicktimeLanguageLookup[13]    = 'Finnish';
2114              $QuicktimeLanguageLookup[14]    = 'Greek';
2115              $QuicktimeLanguageLookup[15]    = 'Icelandic';
2116              $QuicktimeLanguageLookup[16]    = 'Maltese';
2117              $QuicktimeLanguageLookup[17]    = 'Turkish';
2118              $QuicktimeLanguageLookup[18]    = 'Croatian';
2119              $QuicktimeLanguageLookup[19]    = 'Chinese (Traditional)';
2120              $QuicktimeLanguageLookup[20]    = 'Urdu';
2121              $QuicktimeLanguageLookup[21]    = 'Hindi';
2122              $QuicktimeLanguageLookup[22]    = 'Thai';
2123              $QuicktimeLanguageLookup[23]    = 'Korean';
2124              $QuicktimeLanguageLookup[24]    = 'Lithuanian';
2125              $QuicktimeLanguageLookup[25]    = 'Polish';
2126              $QuicktimeLanguageLookup[26]    = 'Hungarian';
2127              $QuicktimeLanguageLookup[27]    = 'Estonian';
2128              $QuicktimeLanguageLookup[28]    = 'Lettish';
2129              $QuicktimeLanguageLookup[28]    = 'Latvian';
2130              $QuicktimeLanguageLookup[29]    = 'Saamisk';
2131              $QuicktimeLanguageLookup[29]    = 'Lappish';
2132              $QuicktimeLanguageLookup[30]    = 'Faeroese';
2133              $QuicktimeLanguageLookup[31]    = 'Farsi';
2134              $QuicktimeLanguageLookup[31]    = 'Persian';
2135              $QuicktimeLanguageLookup[32]    = 'Russian';
2136              $QuicktimeLanguageLookup[33]    = 'Chinese (Simplified)';
2137              $QuicktimeLanguageLookup[34]    = 'Flemish';
2138              $QuicktimeLanguageLookup[35]    = 'Irish';
2139              $QuicktimeLanguageLookup[36]    = 'Albanian';
2140              $QuicktimeLanguageLookup[37]    = 'Romanian';
2141              $QuicktimeLanguageLookup[38]    = 'Czech';
2142              $QuicktimeLanguageLookup[39]    = 'Slovak';
2143              $QuicktimeLanguageLookup[40]    = 'Slovenian';
2144              $QuicktimeLanguageLookup[41]    = 'Yiddish';
2145              $QuicktimeLanguageLookup[42]    = 'Serbian';
2146              $QuicktimeLanguageLookup[43]    = 'Macedonian';
2147              $QuicktimeLanguageLookup[44]    = 'Bulgarian';
2148              $QuicktimeLanguageLookup[45]    = 'Ukrainian';
2149              $QuicktimeLanguageLookup[46]    = 'Byelorussian';
2150              $QuicktimeLanguageLookup[47]    = 'Uzbek';
2151              $QuicktimeLanguageLookup[48]    = 'Kazakh';
2152              $QuicktimeLanguageLookup[49]    = 'Azerbaijani';
2153              $QuicktimeLanguageLookup[50]    = 'AzerbaijanAr';
2154              $QuicktimeLanguageLookup[51]    = 'Armenian';
2155              $QuicktimeLanguageLookup[52]    = 'Georgian';
2156              $QuicktimeLanguageLookup[53]    = 'Moldavian';
2157              $QuicktimeLanguageLookup[54]    = 'Kirghiz';
2158              $QuicktimeLanguageLookup[55]    = 'Tajiki';
2159              $QuicktimeLanguageLookup[56]    = 'Turkmen';
2160              $QuicktimeLanguageLookup[57]    = 'Mongolian';
2161              $QuicktimeLanguageLookup[58]    = 'MongolianCyr';
2162              $QuicktimeLanguageLookup[59]    = 'Pashto';
2163              $QuicktimeLanguageLookup[60]    = 'Kurdish';
2164              $QuicktimeLanguageLookup[61]    = 'Kashmiri';
2165              $QuicktimeLanguageLookup[62]    = 'Sindhi';
2166              $QuicktimeLanguageLookup[63]    = 'Tibetan';
2167              $QuicktimeLanguageLookup[64]    = 'Nepali';
2168              $QuicktimeLanguageLookup[65]    = 'Sanskrit';
2169              $QuicktimeLanguageLookup[66]    = 'Marathi';
2170              $QuicktimeLanguageLookup[67]    = 'Bengali';
2171              $QuicktimeLanguageLookup[68]    = 'Assamese';
2172              $QuicktimeLanguageLookup[69]    = 'Gujarati';
2173              $QuicktimeLanguageLookup[70]    = 'Punjabi';
2174              $QuicktimeLanguageLookup[71]    = 'Oriya';
2175              $QuicktimeLanguageLookup[72]    = 'Malayalam';
2176              $QuicktimeLanguageLookup[73]    = 'Kannada';
2177              $QuicktimeLanguageLookup[74]    = 'Tamil';
2178              $QuicktimeLanguageLookup[75]    = 'Telugu';
2179              $QuicktimeLanguageLookup[76]    = 'Sinhalese';
2180              $QuicktimeLanguageLookup[77]    = 'Burmese';
2181              $QuicktimeLanguageLookup[78]    = 'Khmer';
2182              $QuicktimeLanguageLookup[79]    = 'Lao';
2183              $QuicktimeLanguageLookup[80]    = 'Vietnamese';
2184              $QuicktimeLanguageLookup[81]    = 'Indonesian';
2185              $QuicktimeLanguageLookup[82]    = 'Tagalog';
2186              $QuicktimeLanguageLookup[83]    = 'MalayRoman';
2187              $QuicktimeLanguageLookup[84]    = 'MalayArabic';
2188              $QuicktimeLanguageLookup[85]    = 'Amharic';
2189              $QuicktimeLanguageLookup[86]    = 'Tigrinya';
2190              $QuicktimeLanguageLookup[87]    = 'Galla';
2191              $QuicktimeLanguageLookup[87]    = 'Oromo';
2192              $QuicktimeLanguageLookup[88]    = 'Somali';
2193              $QuicktimeLanguageLookup[89]    = 'Swahili';
2194              $QuicktimeLanguageLookup[90]    = 'Ruanda';
2195              $QuicktimeLanguageLookup[91]    = 'Rundi';
2196              $QuicktimeLanguageLookup[92]    = 'Chewa';
2197              $QuicktimeLanguageLookup[93]    = 'Malagasy';
2198              $QuicktimeLanguageLookup[94]    = 'Esperanto';
2199              $QuicktimeLanguageLookup[128]   = 'Welsh';
2200              $QuicktimeLanguageLookup[129]   = 'Basque';
2201              $QuicktimeLanguageLookup[130]   = 'Catalan';
2202              $QuicktimeLanguageLookup[131]   = 'Latin';
2203              $QuicktimeLanguageLookup[132]   = 'Quechua';
2204              $QuicktimeLanguageLookup[133]   = 'Guarani';
2205              $QuicktimeLanguageLookup[134]   = 'Aymara';
2206              $QuicktimeLanguageLookup[135]   = 'Tatar';
2207              $QuicktimeLanguageLookup[136]   = 'Uighur';
2208              $QuicktimeLanguageLookup[137]   = 'Dzongkha';
2209              $QuicktimeLanguageLookup[138]   = 'JavaneseRom';
2210              $QuicktimeLanguageLookup[32767] = 'Unspecified';
2211          }
2212          if (($languageid > 138) && ($languageid < 32767)) {
2213              /*
2214              ISO Language Codes - http://www.loc.gov/standards/iso639-2/php/code_list.php
2215              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.
2216              The packing algorithm must map each of the three characters, which are always lowercase, into a 5-bit integer and then concatenate
2217              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.
2218  
2219              One algorithm for performing this packing is to treat each ISO character as a 16-bit integer. Subtract 0x60 from the first character
2220              and multiply by 2^10 (0x400), subtract 0x60 from the second character and multiply by 2^5 (0x20), subtract 0x60 from the third character,
2221              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
2222              significant bits and the most significant bit set to zero.
2223              */
2224              $iso_language_id  = '';
2225              $iso_language_id .= chr((($languageid & 0x7C00) >> 10) + 0x60);
2226              $iso_language_id .= chr((($languageid & 0x03E0) >>  5) + 0x60);
2227              $iso_language_id .= chr((($languageid & 0x001F) >>  0) + 0x60);
2228              $QuicktimeLanguageLookup[$languageid] = getid3_id3v2::LanguageLookup($iso_language_id);
2229          }
2230          return (isset($QuicktimeLanguageLookup[$languageid]) ? $QuicktimeLanguageLookup[$languageid] : 'invalid');
2231      }
2232  
2233      /**
2234       * @param string $codecid
2235       *
2236       * @return string
2237       */
2238  	public function QuicktimeVideoCodecLookup($codecid) {
2239          static $QuicktimeVideoCodecLookup = array();
2240          if (empty($QuicktimeVideoCodecLookup)) {
2241              $QuicktimeVideoCodecLookup['.SGI'] = 'SGI';
2242              $QuicktimeVideoCodecLookup['3IV1'] = '3ivx MPEG-4 v1';
2243              $QuicktimeVideoCodecLookup['3IV2'] = '3ivx MPEG-4 v2';
2244              $QuicktimeVideoCodecLookup['3IVX'] = '3ivx MPEG-4';
2245              $QuicktimeVideoCodecLookup['8BPS'] = 'Planar RGB';
2246              $QuicktimeVideoCodecLookup['avc1'] = 'H.264/MPEG-4 AVC';
2247              $QuicktimeVideoCodecLookup['avr '] = 'AVR-JPEG';
2248              $QuicktimeVideoCodecLookup['b16g'] = '16Gray';
2249              $QuicktimeVideoCodecLookup['b32a'] = '32AlphaGray';
2250              $QuicktimeVideoCodecLookup['b48r'] = '48RGB';
2251              $QuicktimeVideoCodecLookup['b64a'] = '64ARGB';
2252              $QuicktimeVideoCodecLookup['base'] = 'Base';
2253              $QuicktimeVideoCodecLookup['clou'] = 'Cloud';
2254              $QuicktimeVideoCodecLookup['cmyk'] = 'CMYK';
2255              $QuicktimeVideoCodecLookup['cvid'] = 'Cinepak';
2256              $QuicktimeVideoCodecLookup['dmb1'] = 'OpenDML JPEG';
2257              $QuicktimeVideoCodecLookup['dvc '] = 'DVC-NTSC';
2258              $QuicktimeVideoCodecLookup['dvcp'] = 'DVC-PAL';
2259              $QuicktimeVideoCodecLookup['dvpn'] = 'DVCPro-NTSC';
2260              $QuicktimeVideoCodecLookup['dvpp'] = 'DVCPro-PAL';
2261              $QuicktimeVideoCodecLookup['fire'] = 'Fire';
2262              $QuicktimeVideoCodecLookup['flic'] = 'FLC';
2263              $QuicktimeVideoCodecLookup['gif '] = 'GIF';
2264              $QuicktimeVideoCodecLookup['h261'] = 'H261';
2265              $QuicktimeVideoCodecLookup['h263'] = 'H263';
2266              $QuicktimeVideoCodecLookup['IV41'] = 'Indeo4';
2267              $QuicktimeVideoCodecLookup['jpeg'] = 'JPEG';
2268              $QuicktimeVideoCodecLookup['kpcd'] = 'PhotoCD';
2269              $QuicktimeVideoCodecLookup['mjpa'] = 'Motion JPEG-A';
2270              $QuicktimeVideoCodecLookup['mjpb'] = 'Motion JPEG-B';
2271              $QuicktimeVideoCodecLookup['msvc'] = 'Microsoft Video1';
2272              $QuicktimeVideoCodecLookup['myuv'] = 'MPEG YUV420';
2273              $QuicktimeVideoCodecLookup['path'] = 'Vector';
2274              $QuicktimeVideoCodecLookup['png '] = 'PNG';
2275              $QuicktimeVideoCodecLookup['PNTG'] = 'MacPaint';
2276              $QuicktimeVideoCodecLookup['qdgx'] = 'QuickDrawGX';
2277              $QuicktimeVideoCodecLookup['qdrw'] = 'QuickDraw';
2278              $QuicktimeVideoCodecLookup['raw '] = 'RAW';
2279              $QuicktimeVideoCodecLookup['ripl'] = 'WaterRipple';
2280              $QuicktimeVideoCodecLookup['rpza'] = 'Video';
2281              $QuicktimeVideoCodecLookup['smc '] = 'Graphics';
2282              $QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 1';
2283              $QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 3';
2284              $QuicktimeVideoCodecLookup['syv9'] = 'Sorenson YUV9';
2285              $QuicktimeVideoCodecLookup['tga '] = 'Targa';
2286              $QuicktimeVideoCodecLookup['tiff'] = 'TIFF';
2287              $QuicktimeVideoCodecLookup['WRAW'] = 'Windows RAW';
2288              $QuicktimeVideoCodecLookup['WRLE'] = 'BMP';
2289              $QuicktimeVideoCodecLookup['y420'] = 'YUV420';
2290              $QuicktimeVideoCodecLookup['yuv2'] = 'ComponentVideo';
2291              $QuicktimeVideoCodecLookup['yuvs'] = 'ComponentVideoUnsigned';
2292              $QuicktimeVideoCodecLookup['yuvu'] = 'ComponentVideoSigned';
2293          }
2294          return (isset($QuicktimeVideoCodecLookup[$codecid]) ? $QuicktimeVideoCodecLookup[$codecid] : '');
2295      }
2296  
2297      /**
2298       * @param string $codecid
2299       *
2300       * @return mixed|string
2301       */
2302  	public function QuicktimeAudioCodecLookup($codecid) {
2303          static $QuicktimeAudioCodecLookup = array();
2304          if (empty($QuicktimeAudioCodecLookup)) {
2305              $QuicktimeAudioCodecLookup['.mp3']          = 'Fraunhofer MPEG Layer-III alias';
2306              $QuicktimeAudioCodecLookup['aac ']          = 'ISO/IEC 14496-3 AAC';
2307              $QuicktimeAudioCodecLookup['agsm']          = 'Apple GSM 10:1';
2308              $QuicktimeAudioCodecLookup['alac']          = 'Apple Lossless Audio Codec';
2309              $QuicktimeAudioCodecLookup['alaw']          = 'A-law 2:1';
2310              $QuicktimeAudioCodecLookup['conv']          = 'Sample Format';
2311              $QuicktimeAudioCodecLookup['dvca']          = 'DV';
2312              $QuicktimeAudioCodecLookup['dvi ']          = 'DV 4:1';
2313              $QuicktimeAudioCodecLookup['eqal']          = 'Frequency Equalizer';
2314              $QuicktimeAudioCodecLookup['fl32']          = '32-bit Floating Point';
2315              $QuicktimeAudioCodecLookup['fl64']          = '64-bit Floating Point';
2316              $QuicktimeAudioCodecLookup['ima4']          = 'Interactive Multimedia Association 4:1';
2317              $QuicktimeAudioCodecLookup['in24']          = '24-bit Integer';
2318              $QuicktimeAudioCodecLookup['in32']          = '32-bit Integer';
2319              $QuicktimeAudioCodecLookup['lpc ']          = 'LPC 23:1';
2320              $QuicktimeAudioCodecLookup['MAC3']          = 'Macintosh Audio Compression/Expansion (MACE) 3:1';
2321              $QuicktimeAudioCodecLookup['MAC6']          = 'Macintosh Audio Compression/Expansion (MACE) 6:1';
2322              $QuicktimeAudioCodecLookup['mixb']          = '8-bit Mixer';
2323              $QuicktimeAudioCodecLookup['mixw']          = '16-bit Mixer';
2324              $QuicktimeAudioCodecLookup['mp4a']          = 'ISO/IEC 14496-3 AAC';
2325              $QuicktimeAudioCodecLookup['MS'."\x00\x02"] = 'Microsoft ADPCM';
2326              $QuicktimeAudioCodecLookup['MS'."\x00\x11"] = 'DV IMA';
2327              $QuicktimeAudioCodecLookup['MS'."\x00\x55"] = 'Fraunhofer MPEG Layer III';
2328              $QuicktimeAudioCodecLookup['NONE']          = 'No Encoding';
2329              $QuicktimeAudioCodecLookup['Qclp']          = 'Qualcomm PureVoice';
2330              $QuicktimeAudioCodecLookup['QDM2']          = 'QDesign Music 2';
2331              $QuicktimeAudioCodecLookup['QDMC']          = 'QDesign Music 1';
2332              $QuicktimeAudioCodecLookup['ratb']          = '8-bit Rate';
2333              $QuicktimeAudioCodecLookup['ratw']          = '16-bit Rate';
2334              $QuicktimeAudioCodecLookup['raw ']          = 'raw PCM';
2335              $QuicktimeAudioCodecLookup['sour']          = 'Sound Source';
2336              $QuicktimeAudioCodecLookup['sowt']          = 'signed/two\'s complement (Little Endian)';
2337              $QuicktimeAudioCodecLookup['str1']          = 'Iomega MPEG layer II';
2338              $QuicktimeAudioCodecLookup['str2']          = 'Iomega MPEG *layer II';
2339              $QuicktimeAudioCodecLookup['str3']          = 'Iomega MPEG **layer II';
2340              $QuicktimeAudioCodecLookup['str4']          = 'Iomega MPEG ***layer II';
2341              $QuicktimeAudioCodecLookup['twos']          = 'signed/two\'s complement (Big Endian)';
2342              $QuicktimeAudioCodecLookup['ulaw']          = 'mu-law 2:1';
2343          }
2344          return (isset($QuicktimeAudioCodecLookup[$codecid]) ? $QuicktimeAudioCodecLookup[$codecid] : '');
2345      }
2346  
2347      /**
2348       * @param string $compressionid
2349       *
2350       * @return string
2351       */
2352  	public function QuicktimeDCOMLookup($compressionid) {
2353          static $QuicktimeDCOMLookup = array();
2354          if (empty($QuicktimeDCOMLookup)) {
2355              $QuicktimeDCOMLookup['zlib'] = 'ZLib Deflate';
2356              $QuicktimeDCOMLookup['adec'] = 'Apple Compression';
2357          }
2358          return (isset($QuicktimeDCOMLookup[$compressionid]) ? $QuicktimeDCOMLookup[$compressionid] : '');
2359      }
2360  
2361      /**
2362       * @param int $colordepthid
2363       *
2364       * @return string
2365       */
2366  	public function QuicktimeColorNameLookup($colordepthid) {
2367          static $QuicktimeColorNameLookup = array();
2368          if (empty($QuicktimeColorNameLookup)) {
2369              $QuicktimeColorNameLookup[1]  = '2-color (monochrome)';
2370              $QuicktimeColorNameLookup[2]  = '4-color';
2371              $QuicktimeColorNameLookup[4]  = '16-color';
2372              $QuicktimeColorNameLookup[8]  = '256-color';
2373              $QuicktimeColorNameLookup[16] = 'thousands (16-bit color)';
2374              $QuicktimeColorNameLookup[24] = 'millions (24-bit color)';
2375              $QuicktimeColorNameLookup[32] = 'millions+ (32-bit color)';
2376              $QuicktimeColorNameLookup[33] = 'black & white';
2377              $QuicktimeColorNameLookup[34] = '4-gray';
2378              $QuicktimeColorNameLookup[36] = '16-gray';
2379              $QuicktimeColorNameLookup[40] = '256-gray';
2380          }
2381          return (isset($QuicktimeColorNameLookup[$colordepthid]) ? $QuicktimeColorNameLookup[$colordepthid] : 'invalid');
2382      }
2383  
2384      /**
2385       * @param int $stik
2386       *
2387       * @return string
2388       */
2389  	public function QuicktimeSTIKLookup($stik) {
2390          static $QuicktimeSTIKLookup = array();
2391          if (empty($QuicktimeSTIKLookup)) {
2392              $QuicktimeSTIKLookup[0]  = 'Movie';
2393              $QuicktimeSTIKLookup[1]  = 'Normal';
2394              $QuicktimeSTIKLookup[2]  = 'Audiobook';
2395              $QuicktimeSTIKLookup[5]  = 'Whacked Bookmark';
2396              $QuicktimeSTIKLookup[6]  = 'Music Video';
2397              $QuicktimeSTIKLookup[9]  = 'Short Film';
2398              $QuicktimeSTIKLookup[10] = 'TV Show';
2399              $QuicktimeSTIKLookup[11] = 'Booklet';
2400              $QuicktimeSTIKLookup[14] = 'Ringtone';
2401              $QuicktimeSTIKLookup[21] = 'Podcast';
2402          }
2403          return (isset($QuicktimeSTIKLookup[$stik]) ? $QuicktimeSTIKLookup[$stik] : 'invalid');
2404      }
2405  
2406      /**
2407       * @param int $audio_profile_id
2408       *
2409       * @return string
2410       */
2411  	public function QuicktimeIODSaudioProfileName($audio_profile_id) {
2412          static $QuicktimeIODSaudioProfileNameLookup = array();
2413          if (empty($QuicktimeIODSaudioProfileNameLookup)) {
2414              $QuicktimeIODSaudioProfileNameLookup = array(
2415                  0x00 => 'ISO Reserved (0x00)',
2416                  0x01 => 'Main Audio Profile @ Level 1',
2417                  0x02 => 'Main Audio Profile @ Level 2',
2418                  0x03 => 'Main Audio Profile @ Level 3',
2419                  0x04 => 'Main Audio Profile @ Level 4',
2420                  0x05 => 'Scalable Audio Profile @ Level 1',
2421                  0x06 => 'Scalable Audio Profile @ Level 2',
2422                  0x07 => 'Scalable Audio Profile @ Level 3',
2423                  0x08 => 'Scalable Audio Profile @ Level 4',
2424                  0x09 => 'Speech Audio Profile @ Level 1',
2425                  0x0A => 'Speech Audio Profile @ Level 2',
2426                  0x0B => 'Synthetic Audio Profile @ Level 1',
2427                  0x0C => 'Synthetic Audio Profile @ Level 2',
2428                  0x0D => 'Synthetic Audio Profile @ Level 3',
2429                  0x0E => 'High Quality Audio Profile @ Level 1',
2430                  0x0F => 'High Quality Audio Profile @ Level 2',
2431                  0x10 => 'High Quality Audio Profile @ Level 3',
2432                  0x11 => 'High Quality Audio Profile @ Level 4',
2433                  0x12 => 'High Quality Audio Profile @ Level 5',
2434                  0x13 => 'High Quality Audio Profile @ Level 6',
2435                  0x14 => 'High Quality Audio Profile @ Level 7',
2436                  0x15 => 'High Quality Audio Profile @ Level 8',
2437                  0x16 => 'Low Delay Audio Profile @ Level 1',
2438                  0x17 => 'Low Delay Audio Profile @ Level 2',
2439                  0x18 => 'Low Delay Audio Profile @ Level 3',
2440                  0x19 => 'Low Delay Audio Profile @ Level 4',
2441                  0x1A => 'Low Delay Audio Profile @ Level 5',
2442                  0x1B => 'Low Delay Audio Profile @ Level 6',
2443                  0x1C => 'Low Delay Audio Profile @ Level 7',
2444                  0x1D => 'Low Delay Audio Profile @ Level 8',
2445                  0x1E => 'Natural Audio Profile @ Level 1',
2446                  0x1F => 'Natural Audio Profile @ Level 2',
2447                  0x20 => 'Natural Audio Profile @ Level 3',
2448                  0x21 => 'Natural Audio Profile @ Level 4',
2449                  0x22 => 'Mobile Audio Internetworking Profile @ Level 1',
2450                  0x23 => 'Mobile Audio Internetworking Profile @ Level 2',
2451                  0x24 => 'Mobile Audio Internetworking Profile @ Level 3',
2452                  0x25 => 'Mobile Audio Internetworking Profile @ Level 4',
2453                  0x26 => 'Mobile Audio Internetworking Profile @ Level 5',
2454                  0x27 => 'Mobile Audio Internetworking Profile @ Level 6',
2455                  0x28 => 'AAC Profile @ Level 1',
2456                  0x29 => 'AAC Profile @ Level 2',
2457                  0x2A => 'AAC Profile @ Level 4',
2458                  0x2B => 'AAC Profile @ Level 5',
2459                  0x2C => 'High Efficiency AAC Profile @ Level 2',
2460                  0x2D => 'High Efficiency AAC Profile @ Level 3',
2461                  0x2E => 'High Efficiency AAC Profile @ Level 4',
2462                  0x2F => 'High Efficiency AAC Profile @ Level 5',
2463                  0xFE => 'Not part of MPEG-4 audio profiles',
2464                  0xFF => 'No audio capability required',
2465              );
2466          }
2467          return (isset($QuicktimeIODSaudioProfileNameLookup[$audio_profile_id]) ? $QuicktimeIODSaudioProfileNameLookup[$audio_profile_id] : 'ISO Reserved / User Private');
2468      }
2469  
2470      /**
2471       * @param int $video_profile_id
2472       *
2473       * @return string
2474       */
2475  	public function QuicktimeIODSvideoProfileName($video_profile_id) {
2476          static $QuicktimeIODSvideoProfileNameLookup = array();
2477          if (empty($QuicktimeIODSvideoProfileNameLookup)) {
2478              $QuicktimeIODSvideoProfileNameLookup = array(
2479                  0x00 => 'Reserved (0x00) Profile',
2480                  0x01 => 'Simple Profile @ Level 1',
2481                  0x02 => 'Simple Profile @ Level 2',
2482                  0x03 => 'Simple Profile @ Level 3',
2483                  0x08 => 'Simple Profile @ Level 0',
2484                  0x10 => 'Simple Scalable Profile @ Level 0',
2485                  0x11 => 'Simple Scalable Profile @ Level 1',
2486                  0x12 => 'Simple Scalable Profile @ Level 2',
2487                  0x15 => 'AVC/H264 Profile',
2488                  0x21 => 'Core Profile @ Level 1',
2489                  0x22 => 'Core Profile @ Level 2',
2490                  0x32 => 'Main Profile @ Level 2',
2491                  0x33 => 'Main Profile @ Level 3',
2492                  0x34 => 'Main Profile @ Level 4',
2493                  0x42 => 'N-bit Profile @ Level 2',
2494                  0x51 => 'Scalable Texture Profile @ Level 1',
2495                  0x61 => 'Simple Face Animation Profile @ Level 1',
2496                  0x62 => 'Simple Face Animation Profile @ Level 2',
2497                  0x63 => 'Simple FBA Profile @ Level 1',
2498                  0x64 => 'Simple FBA Profile @ Level 2',
2499                  0x71 => 'Basic Animated Texture Profile @ Level 1',
2500                  0x72 => 'Basic Animated Texture Profile @ Level 2',
2501                  0x81 => 'Hybrid Profile @ Level 1',
2502                  0x82 => 'Hybrid Profile @ Level 2',
2503                  0x91 => 'Advanced Real Time Simple Profile @ Level 1',
2504                  0x92 => 'Advanced Real Time Simple Profile @ Level 2',
2505                  0x93 => 'Advanced Real Time Simple Profile @ Level 3',
2506                  0x94 => 'Advanced Real Time Simple Profile @ Level 4',
2507                  0xA1 => 'Core Scalable Profile @ Level1',
2508                  0xA2 => 'Core Scalable Profile @ Level2',
2509                  0xA3 => 'Core Scalable Profile @ Level3',
2510                  0xB1 => 'Advanced Coding Efficiency Profile @ Level 1',
2511                  0xB2 => 'Advanced Coding Efficiency Profile @ Level 2',
2512                  0xB3 => 'Advanced Coding Efficiency Profile @ Level 3',
2513                  0xB4 => 'Advanced Coding Efficiency Profile @ Level 4',
2514                  0xC1 => 'Advanced Core Profile @ Level 1',
2515                  0xC2 => 'Advanced Core Profile @ Level 2',
2516                  0xD1 => 'Advanced Scalable Texture @ Level1',
2517                  0xD2 => 'Advanced Scalable Texture @ Level2',
2518                  0xE1 => 'Simple Studio Profile @ Level 1',
2519                  0xE2 => 'Simple Studio Profile @ Level 2',
2520                  0xE3 => 'Simple Studio Profile @ Level 3',
2521                  0xE4 => 'Simple Studio Profile @ Level 4',
2522                  0xE5 => 'Core Studio Profile @ Level 1',
2523                  0xE6 => 'Core Studio Profile @ Level 2',
2524                  0xE7 => 'Core Studio Profile @ Level 3',
2525                  0xE8 => 'Core Studio Profile @ Level 4',
2526                  0xF0 => 'Advanced Simple Profile @ Level 0',
2527                  0xF1 => 'Advanced Simple Profile @ Level 1',
2528                  0xF2 => 'Advanced Simple Profile @ Level 2',
2529                  0xF3 => 'Advanced Simple Profile @ Level 3',
2530                  0xF4 => 'Advanced Simple Profile @ Level 4',
2531                  0xF5 => 'Advanced Simple Profile @ Level 5',
2532                  0xF7 => 'Advanced Simple Profile @ Level 3b',
2533                  0xF8 => 'Fine Granularity Scalable Profile @ Level 0',
2534                  0xF9 => 'Fine Granularity Scalable Profile @ Level 1',
2535                  0xFA => 'Fine Granularity Scalable Profile @ Level 2',
2536                  0xFB => 'Fine Granularity Scalable Profile @ Level 3',
2537                  0xFC => 'Fine Granularity Scalable Profile @ Level 4',
2538                  0xFD => 'Fine Granularity Scalable Profile @ Level 5',
2539                  0xFE => 'Not part of MPEG-4 Visual profiles',
2540                  0xFF => 'No visual capability required',
2541              );
2542          }
2543          return (isset($QuicktimeIODSvideoProfileNameLookup[$video_profile_id]) ? $QuicktimeIODSvideoProfileNameLookup[$video_profile_id] : 'ISO Reserved Profile');
2544      }
2545  
2546      /**
2547       * @param int $rtng
2548       *
2549       * @return string
2550       */
2551  	public function QuicktimeContentRatingLookup($rtng) {
2552          static $QuicktimeContentRatingLookup = array();
2553          if (empty($QuicktimeContentRatingLookup)) {
2554              $QuicktimeContentRatingLookup[0]  = 'None';
2555              $QuicktimeContentRatingLookup[2]  = 'Clean';
2556              $QuicktimeContentRatingLookup[4]  = 'Explicit';
2557          }
2558          return (isset($QuicktimeContentRatingLookup[$rtng]) ? $QuicktimeContentRatingLookup[$rtng] : 'invalid');
2559      }
2560  
2561      /**
2562       * @param int $akid
2563       *
2564       * @return string
2565       */
2566  	public function QuicktimeStoreAccountTypeLookup($akid) {
2567          static $QuicktimeStoreAccountTypeLookup = array();
2568          if (empty($QuicktimeStoreAccountTypeLookup)) {
2569              $QuicktimeStoreAccountTypeLookup[0] = 'iTunes';
2570              $QuicktimeStoreAccountTypeLookup[1] = 'AOL';
2571          }
2572          return (isset($QuicktimeStoreAccountTypeLookup[$akid]) ? $QuicktimeStoreAccountTypeLookup[$akid] : 'invalid');
2573      }
2574  
2575      /**
2576       * @param int $sfid
2577       *
2578       * @return string
2579       */
2580  	public function QuicktimeStoreFrontCodeLookup($sfid) {
2581          static $QuicktimeStoreFrontCodeLookup = array();
2582          if (empty($QuicktimeStoreFrontCodeLookup)) {
2583              $QuicktimeStoreFrontCodeLookup[143460] = 'Australia';
2584              $QuicktimeStoreFrontCodeLookup[143445] = 'Austria';
2585              $QuicktimeStoreFrontCodeLookup[143446] = 'Belgium';
2586              $QuicktimeStoreFrontCodeLookup[143455] = 'Canada';
2587              $QuicktimeStoreFrontCodeLookup[143458] = 'Denmark';
2588              $QuicktimeStoreFrontCodeLookup[143447] = 'Finland';
2589              $QuicktimeStoreFrontCodeLookup[143442] = 'France';
2590              $QuicktimeStoreFrontCodeLookup[143443] = 'Germany';
2591              $QuicktimeStoreFrontCodeLookup[143448] = 'Greece';
2592              $QuicktimeStoreFrontCodeLookup[143449] = 'Ireland';
2593              $QuicktimeStoreFrontCodeLookup[143450] = 'Italy';
2594              $QuicktimeStoreFrontCodeLookup[143462] = 'Japan';
2595              $QuicktimeStoreFrontCodeLookup[143451] = 'Luxembourg';
2596              $QuicktimeStoreFrontCodeLookup[143452] = 'Netherlands';
2597              $QuicktimeStoreFrontCodeLookup[143461] = 'New Zealand';
2598              $QuicktimeStoreFrontCodeLookup[143457] = 'Norway';
2599              $QuicktimeStoreFrontCodeLookup[143453] = 'Portugal';
2600              $QuicktimeStoreFrontCodeLookup[143454] = 'Spain';
2601              $QuicktimeStoreFrontCodeLookup[143456] = 'Sweden';
2602              $QuicktimeStoreFrontCodeLookup[143459] = 'Switzerland';
2603              $QuicktimeStoreFrontCodeLookup[143444] = 'United Kingdom';
2604              $QuicktimeStoreFrontCodeLookup[143441] = 'United States';
2605          }
2606          return (isset($QuicktimeStoreFrontCodeLookup[$sfid]) ? $QuicktimeStoreFrontCodeLookup[$sfid] : 'invalid');
2607      }
2608  
2609      /**
2610       * @param string $atom_data
2611       *
2612       * @return array
2613       */
2614  	public function QuicktimeParseNikonNCTG($atom_data) {
2615          // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
2616          // Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
2617          // Data is stored as records of:
2618          // * 4 bytes record type
2619          // * 2 bytes size of data field type:
2620          //     0x0001 = flag   (size field *= 1-byte)
2621          //     0x0002 = char   (size field *= 1-byte)
2622          //     0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
2623          //     0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
2624          //     0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
2625          //     0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
2626          //     0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
2627          // * 2 bytes data size field
2628          // * ? bytes data (string data may be null-padded; datestamp fields are in the format "2011:05:25 20:24:15")
2629          // all integers are stored BigEndian
2630  
2631          $NCTGtagName = array(
2632              0x00000001 => 'Make',
2633              0x00000002 => 'Model',
2634              0x00000003 => 'Software',
2635              0x00000011 => 'CreateDate',
2636              0x00000012 => 'DateTimeOriginal',
2637              0x00000013 => 'FrameCount',
2638              0x00000016 => 'FrameRate',
2639              0x00000022 => 'FrameWidth',
2640              0x00000023 => 'FrameHeight',
2641              0x00000032 => 'AudioChannels',
2642              0x00000033 => 'AudioBitsPerSample',
2643              0x00000034 => 'AudioSampleRate',
2644              0x02000001 => 'MakerNoteVersion',
2645              0x02000005 => 'WhiteBalance',
2646              0x0200000b => 'WhiteBalanceFineTune',
2647              0x0200001e => 'ColorSpace',
2648              0x02000023 => 'PictureControlData',
2649              0x02000024 => 'WorldTime',
2650              0x02000032 => 'UnknownInfo',
2651              0x02000083 => 'LensType',
2652              0x02000084 => 'Lens',
2653          );
2654  
2655          $offset = 0;
2656          $data = null;
2657          $datalength = strlen($atom_data);
2658          $parsed = array();
2659          while ($offset < $datalength) {
2660              $record_type       = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));  $offset += 4;
2661              $data_size_type    = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
2662              $data_size         = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
2663              switch ($data_size_type) {
2664                  case 0x0001: // 0x0001 = flag   (size field *= 1-byte)
2665                      $data = getid3_lib::BigEndian2Int(substr($atom_data, $offset, $data_size * 1));
2666                      $offset += ($data_size * 1);
2667                      break;
2668                  case 0x0002: // 0x0002 = char   (size field *= 1-byte)
2669                      $data = substr($atom_data, $offset, $data_size * 1);
2670                      $offset += ($data_size * 1);
2671                      $data = rtrim($data, "\x00");
2672                      break;
2673                  case 0x0003: // 0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
2674                      $data = '';
2675                      for ($i = $data_size - 1; $i >= 0; $i--) {
2676                          $data .= substr($atom_data, $offset + ($i * 2), 2);
2677                      }
2678                      $data = getid3_lib::BigEndian2Int($data);
2679                      $offset += ($data_size * 2);
2680                      break;
2681                  case 0x0004: // 0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
2682                      $data = '';
2683                      for ($i = $data_size - 1; $i >= 0; $i--) {
2684                          $data .= substr($atom_data, $offset + ($i * 4), 4);
2685                      }
2686                      $data = getid3_lib::BigEndian2Int($data);
2687                      $offset += ($data_size * 4);
2688                      break;
2689                  case 0x0005: // 0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
2690                      $data = array();
2691                      for ($i = 0; $i < $data_size; $i++) {
2692                          $numerator    = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 0, 4));
2693                          $denomninator = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 4, 4));
2694                          if ($denomninator == 0) {
2695                              $data[$i] = false;
2696                          } else {
2697                              $data[$i] = (double) $numerator / $denomninator;
2698                          }
2699                      }
2700                      $offset += (8 * $data_size);
2701                      if (count($data) == 1) {
2702                          $data = $data[0];
2703                      }
2704                      break;
2705                  case 0x0007: // 0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
2706                      $data = substr($atom_data, $offset, $data_size * 1);
2707                      $offset += ($data_size * 1);
2708                      break;
2709                  case 0x0008: // 0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
2710                      $data = substr($atom_data, $offset, $data_size * 2);
2711                      $offset += ($data_size * 2);
2712                      break;
2713                  default:
2714                      echo 'QuicktimeParseNikonNCTG()::unknown $data_size_type: '.$data_size_type.'<br>';
2715                      break 2;
2716              }
2717  
2718              switch ($record_type) {
2719                  case 0x00000011: // CreateDate
2720                  case 0x00000012: // DateTimeOriginal
2721                      $data = strtotime($data);
2722                      break;
2723                  case 0x0200001e: // ColorSpace
2724                      switch ($data) {
2725                          case 1:
2726                              $data = 'sRGB';
2727                              break;
2728                          case 2:
2729                              $data = 'Adobe RGB';
2730                              break;
2731                      }
2732                      break;
2733                  case 0x02000023: // PictureControlData
2734                      $PictureControlAdjust = array(0=>'default', 1=>'quick', 2=>'full');
2735                      $FilterEffect = array(0x80=>'off', 0x81=>'yellow', 0x82=>'orange',    0x83=>'red', 0x84=>'green',  0xff=>'n/a');
2736                      $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');
2737                      $data = array(
2738                          'PictureControlVersion'     =>                           substr($data,  0,  4),
2739                          'PictureControlName'        =>                     rtrim(substr($data,  4, 20), "\x00"),
2740                          'PictureControlBase'        =>                     rtrim(substr($data, 24, 20), "\x00"),
2741                          //'?'                       =>                           substr($data, 44,  4),
2742                          'PictureControlAdjust'      => $PictureControlAdjust[ord(substr($data, 48,  1))],
2743                          'PictureControlQuickAdjust' =>                       ord(substr($data, 49,  1)),
2744                          'Sharpness'                 =>                       ord(substr($data, 50,  1)),
2745                          'Contrast'                  =>                       ord(substr($data, 51,  1)),
2746                          'Brightness'                =>                       ord(substr($data, 52,  1)),
2747                          'Saturation'                =>                       ord(substr($data, 53,  1)),
2748                          'HueAdjustment'             =>                       ord(substr($data, 54,  1)),
2749                          'FilterEffect'              =>         $FilterEffect[ord(substr($data, 55,  1))],
2750                          'ToningEffect'              =>         $ToningEffect[ord(substr($data, 56,  1))],
2751                          'ToningSaturation'          =>                       ord(substr($data, 57,  1)),
2752                      );
2753                      break;
2754                  case 0x02000024: // WorldTime
2755                      // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#WorldTime
2756                      // timezone is stored as offset from GMT in minutes
2757                      $timezone = getid3_lib::BigEndian2Int(substr($data, 0, 2));
2758                      if ($timezone & 0x8000) {
2759                          $timezone = 0 - (0x10000 - $timezone);
2760                      }
2761                      $timezone /= 60;
2762  
2763                      $dst = (bool) getid3_lib::BigEndian2Int(substr($data, 2, 1));
2764                      switch (getid3_lib::BigEndian2Int(substr($data, 3, 1))) {
2765                          case 2:
2766                              $datedisplayformat = 'D/M/Y'; break;
2767                          case 1:
2768                              $datedisplayformat = 'M/D/Y'; break;
2769                          case 0:
2770                          default:
2771                              $datedisplayformat = 'Y/M/D'; break;
2772                      }
2773  
2774                      $data = array('timezone'=>floatval($timezone), 'dst'=>$dst, 'display'=>$datedisplayformat);
2775                      break;
2776                  case 0x02000083: // LensType
2777                      $data = array(
2778                          //'_'  => $data,
2779                          'mf' => (bool) ($data & 0x01),
2780                          'd'  => (bool) ($data & 0x02),
2781                          'g'  => (bool) ($data & 0x04),
2782                          'vr' => (bool) ($data & 0x08),
2783                      );
2784                      break;
2785              }
2786              $tag_name = (isset($NCTGtagName[$record_type]) ? $NCTGtagName[$record_type] : '0x'.str_pad(dechex($record_type), 8, '0', STR_PAD_LEFT));
2787              $parsed[$tag_name] = $data;
2788          }
2789          return $parsed;
2790      }
2791  
2792      /**
2793       * @param string $keyname
2794       * @param string|array $data
2795       * @param string $boxname
2796       *
2797       * @return bool
2798       */
2799  	public function CopyToAppropriateCommentsSection($keyname, $data, $boxname='') {
2800          static $handyatomtranslatorarray = array();
2801          if (empty($handyatomtranslatorarray)) {
2802              // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
2803              // http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt
2804              // http://atomicparsley.sourceforge.net/mpeg-4files.html
2805              // https://code.google.com/p/mp4v2/wiki/iTunesMetadata
2806              $handyatomtranslatorarray["\xA9".'alb'] = 'album';               // iTunes 4.0
2807              $handyatomtranslatorarray["\xA9".'ART'] = 'artist';
2808              $handyatomtranslatorarray["\xA9".'art'] = 'artist';              // iTunes 4.0
2809              $handyatomtranslatorarray["\xA9".'aut'] = 'author';
2810              $handyatomtranslatorarray["\xA9".'cmt'] = 'comment';             // iTunes 4.0
2811              $handyatomtranslatorarray["\xA9".'com'] = 'comment';
2812              $handyatomtranslatorarray["\xA9".'cpy'] = 'copyright';
2813              $handyatomtranslatorarray["\xA9".'day'] = 'creation_date';       // iTunes 4.0
2814              $handyatomtranslatorarray["\xA9".'dir'] = 'director';
2815              $handyatomtranslatorarray["\xA9".'ed1'] = 'edit1';
2816              $handyatomtranslatorarray["\xA9".'ed2'] = 'edit2';
2817              $handyatomtranslatorarray["\xA9".'ed3'] = 'edit3';
2818              $handyatomtranslatorarray["\xA9".'ed4'] = 'edit4';
2819              $handyatomtranslatorarray["\xA9".'ed5'] = 'edit5';
2820              $handyatomtranslatorarray["\xA9".'ed6'] = 'edit6';
2821              $handyatomtranslatorarray["\xA9".'ed7'] = 'edit7';
2822              $handyatomtranslatorarray["\xA9".'ed8'] = 'edit8';
2823              $handyatomtranslatorarray["\xA9".'ed9'] = 'edit9';
2824              $handyatomtranslatorarray["\xA9".'enc'] = 'encoded_by';
2825              $handyatomtranslatorarray["\xA9".'fmt'] = 'format';
2826              $handyatomtranslatorarray["\xA9".'gen'] = 'genre';               // iTunes 4.0
2827              $handyatomtranslatorarray["\xA9".'grp'] = 'grouping';            // iTunes 4.2
2828              $handyatomtranslatorarray["\xA9".'hst'] = 'host_computer';
2829              $handyatomtranslatorarray["\xA9".'inf'] = 'information';
2830              $handyatomtranslatorarray["\xA9".'lyr'] = 'lyrics';              // iTunes 5.0
2831              $handyatomtranslatorarray["\xA9".'mak'] = 'make';
2832              $handyatomtranslatorarray["\xA9".'mod'] = 'model';
2833              $handyatomtranslatorarray["\xA9".'nam'] = 'title';               // iTunes 4.0
2834              $handyatomtranslatorarray["\xA9".'ope'] = 'composer';
2835              $handyatomtranslatorarray["\xA9".'prd'] = 'producer';
2836              $handyatomtranslatorarray["\xA9".'PRD'] = 'product';
2837              $handyatomtranslatorarray["\xA9".'prf'] = 'performers';
2838              $handyatomtranslatorarray["\xA9".'req'] = 'system_requirements';
2839              $handyatomtranslatorarray["\xA9".'src'] = 'source_credit';
2840              $handyatomtranslatorarray["\xA9".'swr'] = 'software';
2841              $handyatomtranslatorarray["\xA9".'too'] = 'encoding_tool';       // iTunes 4.0
2842              $handyatomtranslatorarray["\xA9".'trk'] = 'track_number';
2843              $handyatomtranslatorarray["\xA9".'url'] = 'url';
2844              $handyatomtranslatorarray["\xA9".'wrn'] = 'warning';
2845              $handyatomtranslatorarray["\xA9".'wrt'] = 'composer';
2846              $handyatomtranslatorarray['aART'] = 'album_artist';
2847              $handyatomtranslatorarray['apID'] = 'purchase_account';
2848              $handyatomtranslatorarray['catg'] = 'category';            // iTunes 4.9
2849              $handyatomtranslatorarray['covr'] = 'picture';             // iTunes 4.0
2850              $handyatomtranslatorarray['cpil'] = 'compilation';         // iTunes 4.0
2851              $handyatomtranslatorarray['cprt'] = 'copyright';           // iTunes 4.0?
2852              $handyatomtranslatorarray['desc'] = 'description';         // iTunes 5.0
2853              $handyatomtranslatorarray['disk'] = 'disc_number';         // iTunes 4.0
2854              $handyatomtranslatorarray['egid'] = 'episode_guid';        // iTunes 4.9
2855              $handyatomtranslatorarray['gnre'] = 'genre';               // iTunes 4.0
2856              $handyatomtranslatorarray['hdvd'] = 'hd_video';            // iTunes 4.0
2857              $handyatomtranslatorarray['ldes'] = 'description_long';    //
2858              $handyatomtranslatorarray['keyw'] = 'keyword';             // iTunes 4.9
2859              $handyatomtranslatorarray['pcst'] = 'podcast';             // iTunes 4.9
2860              $handyatomtranslatorarray['pgap'] = 'gapless_playback';    // iTunes 7.0
2861              $handyatomtranslatorarray['purd'] = 'purchase_date';       // iTunes 6.0.2
2862              $handyatomtranslatorarray['purl'] = 'podcast_url';         // iTunes 4.9
2863              $handyatomtranslatorarray['rtng'] = 'rating';              // iTunes 4.0
2864              $handyatomtranslatorarray['soaa'] = 'sort_album_artist';   //
2865              $handyatomtranslatorarray['soal'] = 'sort_album';          //
2866              $handyatomtranslatorarray['soar'] = 'sort_artist';         //
2867              $handyatomtranslatorarray['soco'] = 'sort_composer';       //
2868              $handyatomtranslatorarray['sonm'] = 'sort_title';          //
2869              $handyatomtranslatorarray['sosn'] = 'sort_show';           //
2870              $handyatomtranslatorarray['stik'] = 'stik';                // iTunes 4.9
2871              $handyatomtranslatorarray['tmpo'] = 'bpm';                 // iTunes 4.0
2872              $handyatomtranslatorarray['trkn'] = 'track_number';        // iTunes 4.0
2873              $handyatomtranslatorarray['tven'] = 'tv_episode_id';       //
2874              $handyatomtranslatorarray['tves'] = 'tv_episode';          // iTunes 6.0
2875              $handyatomtranslatorarray['tvnn'] = 'tv_network_name';     // iTunes 6.0
2876              $handyatomtranslatorarray['tvsh'] = 'tv_show_name';        // iTunes 6.0
2877              $handyatomtranslatorarray['tvsn'] = 'tv_season';           // iTunes 6.0
2878  
2879              // boxnames:
2880              /*
2881              $handyatomtranslatorarray['iTunSMPB']                    = 'iTunSMPB';
2882              $handyatomtranslatorarray['iTunNORM']                    = 'iTunNORM';
2883              $handyatomtranslatorarray['Encoding Params']             = 'Encoding Params';
2884              $handyatomtranslatorarray['replaygain_track_gain']       = 'replaygain_track_gain';
2885              $handyatomtranslatorarray['replaygain_track_peak']       = 'replaygain_track_peak';
2886              $handyatomtranslatorarray['replaygain_track_minmax']     = 'replaygain_track_minmax';
2887              $handyatomtranslatorarray['MusicIP PUID']                = 'MusicIP PUID';
2888              $handyatomtranslatorarray['MusicBrainz Artist Id']       = 'MusicBrainz Artist Id';
2889              $handyatomtranslatorarray['MusicBrainz Album Id']        = 'MusicBrainz Album Id';
2890              $handyatomtranslatorarray['MusicBrainz Album Artist Id'] = 'MusicBrainz Album Artist Id';
2891              $handyatomtranslatorarray['MusicBrainz Track Id']        = 'MusicBrainz Track Id';
2892              $handyatomtranslatorarray['MusicBrainz Disc Id']         = 'MusicBrainz Disc Id';
2893  
2894              // http://age.hobba.nl/audio/tag_frame_reference.html
2895              $handyatomtranslatorarray['PLAY_COUNTER']                = 'play_counter'; // Foobar2000 - https://www.getid3.org/phpBB3/viewtopic.php?t=1355
2896              $handyatomtranslatorarray['MEDIATYPE']                   = 'mediatype';    // Foobar2000 - https://www.getid3.org/phpBB3/viewtopic.php?t=1355
2897              */
2898          }
2899          $info = &$this->getid3->info;
2900          $comment_key = '';
2901          if ($boxname && ($boxname != $keyname)) {
2902              $comment_key = (isset($handyatomtranslatorarray[$boxname]) ? $handyatomtranslatorarray[$boxname] : $boxname);
2903          } elseif (isset($handyatomtranslatorarray[$keyname])) {
2904              $comment_key = $handyatomtranslatorarray[$keyname];
2905          }
2906          if ($comment_key) {
2907              if ($comment_key == 'picture') {
2908                  // already copied directly into [comments][picture] elsewhere, do not re-copy here
2909                  return true;
2910              }
2911              $gooddata = array($data);
2912              if ($comment_key == 'genre') {
2913                  // some other taggers separate multiple genres with semicolon, e.g. "Heavy Metal;Thrash Metal;Metal"
2914                  $gooddata = explode(';', $data);
2915              }
2916              foreach ($gooddata as $data) {
2917                  if (!empty($info['quicktime']['comments'][$comment_key]) && in_array($data, $info['quicktime']['comments'][$comment_key], true)) {
2918                      // avoid duplicate copies of identical data
2919                      continue;
2920                  }
2921                  $info['quicktime']['comments'][$comment_key][] = $data;
2922              }
2923          }
2924          return true;
2925      }
2926  
2927      /**
2928       * @param string $lstring
2929       * @param int    $count
2930       *
2931       * @return string
2932       */
2933  	public function LociString($lstring, &$count) {
2934          // Loci strings are UTF-8 or UTF-16 and null (x00/x0000) terminated. UTF-16 has a BOM
2935          // Also need to return the number of bytes the string occupied so additional fields can be extracted
2936          $len = strlen($lstring);
2937          if ($len == 0) {
2938              $count = 0;
2939              return '';
2940          }
2941          if ($lstring[0] == "\x00") {
2942              $count = 1;
2943              return '';
2944          }
2945          // check for BOM
2946          if (($len > 2) && ((($lstring[0] == "\xFE") && ($lstring[1] == "\xFF")) || (($lstring[0] == "\xFF") && ($lstring[1] == "\xFE")))) {
2947              // UTF-16
2948              if (preg_match('/(.*)\x00/', $lstring, $lmatches)) {
2949                  $count = strlen($lmatches[1]) * 2 + 2; //account for 2 byte characters and trailing \x0000
2950                  return getid3_lib::iconv_fallback_utf16_utf8($lmatches[1]);
2951              } else {
2952                  return '';
2953              }
2954          }
2955          // UTF-8
2956          if (preg_match('/(.*)\x00/', $lstring, $lmatches)) {
2957              $count = strlen($lmatches[1]) + 1; //account for trailing \x00
2958              return $lmatches[1];
2959          }
2960          return '';
2961      }
2962  
2963      /**
2964       * @param string $nullterminatedstring
2965       *
2966       * @return string
2967       */
2968  	public function NoNullString($nullterminatedstring) {
2969          // remove the single null terminator on null terminated strings
2970          if (substr($nullterminatedstring, strlen($nullterminatedstring) - 1, 1) === "\x00") {
2971              return substr($nullterminatedstring, 0, strlen($nullterminatedstring) - 1);
2972          }
2973          return $nullterminatedstring;
2974      }
2975  
2976      /**
2977       * @param string $pascalstring
2978       *
2979       * @return string
2980       */
2981  	public function Pascal2String($pascalstring) {
2982          // Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string
2983          return substr($pascalstring, 1);
2984      }
2985  
2986      /**
2987       * @param string $pascalstring
2988       *
2989       * @return string
2990       */
2991  	public function MaybePascal2String($pascalstring) {
2992          // Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string
2993          // Check if string actually is in this format or written incorrectly, straight string, or null-terminated string
2994          if (ord(substr($pascalstring, 0, 1)) == (strlen($pascalstring) - 1)) {
2995              return substr($pascalstring, 1);
2996          } elseif (substr($pascalstring, -1, 1) == "\x00") {
2997              // appears to be null-terminated instead of Pascal-style
2998              return substr($pascalstring, 0, -1);
2999          }
3000          return $pascalstring;
3001      }
3002  
3003  
3004      /**
3005       * Helper functions for m4b audiobook chapters
3006       * code by Steffen Hartmann 2015-Nov-08.
3007       *
3008       * @param array  $info
3009       * @param string $tag
3010       * @param string $history
3011       * @param array  $result
3012       */
3013  	public function search_tag_by_key($info, $tag, $history, &$result) {
3014          foreach ($info as $key => $value) {
3015              $key_history = $history.'/'.$key;
3016              if ($key === $tag) {
3017                  $result[] = array($key_history, $info);
3018              } else {
3019                  if (is_array($value)) {
3020                      $this->search_tag_by_key($value, $tag, $key_history, $result);
3021                  }
3022              }
3023          }
3024      }
3025  
3026      /**
3027       * @param array  $info
3028       * @param string $k
3029       * @param string $v
3030       * @param string $history
3031       * @param array  $result
3032       */
3033  	public function search_tag_by_pair($info, $k, $v, $history, &$result) {
3034          foreach ($info as $key => $value) {
3035              $key_history = $history.'/'.$key;
3036              if (($key === $k) && ($value === $v)) {
3037                  $result[] = array($key_history, $info);
3038              } else {
3039                  if (is_array($value)) {
3040                      $this->search_tag_by_pair($value, $k, $v, $key_history, $result);
3041                  }
3042              }
3043          }
3044      }
3045  
3046      /**
3047       * @param array $info
3048       *
3049       * @return array
3050       */
3051  	public function quicktime_time_to_sample_table($info) {
3052          $res = array();
3053          $this->search_tag_by_pair($info['quicktime']['moov'], 'name', 'stbl', 'quicktime/moov', $res);
3054          foreach ($res as $value) {
3055              $stbl_res = array();
3056              $this->search_tag_by_pair($value[1], 'data_format', 'text', $value[0], $stbl_res);
3057              if (count($stbl_res) &