1 <?php

     2 /////////////////////////////////////////////////////////////////

     3 /// getID3() by James Heinrich <info@getid3.org>               //

     4 //  available at http://getid3.sourceforge.net                 //

     5 //            or http://www.getid3.org                         //

     6 /////////////////////////////////////////////////////////////////

     7 // See readme.txt for more details                             //

     8 /////////////////////////////////////////////////////////////////

     9 //                                                             //

    10 // module.audio-video.quicktime.php                            //

    11 // module for analyzing Quicktime and MP3-in-MP4 files         //

    12 // dependencies: module.audio.mp3.php                          //

    13 // dependencies: module.tag.id3v2.php                          //

    14 //                                                            ///

    15 /////////////////////////////////////////////////////////////////

    16 

    17 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true);

    18 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup

    19 

    20 class getid3_quicktime extends getid3_handler

    21 {

    22 

    23 	public $ReturnAtomData        = true;

    24 	public $ParseAllPossibleAtoms = false;

    25 

    26 	public function Analyze() {

    27 		$info = &$this->getid3->info;

    28 

    29 		$info['fileformat'] = 'quicktime';

    30 		$info['quicktime']['hinting']    = false;

    31 		$info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present

    32 

    33 		fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);

    34 

    35 		$offset      = 0;

    36 		$atomcounter = 0;

    37 

    38 		while ($offset < $info['avdataend']) {

    39 			if (!getid3_lib::intValueSupported($offset)) {

    40 				$info['error'][] = 'Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions';

    41 				break;

    42 			}

    43 			fseek($this->getid3->fp, $offset, SEEK_SET);

    44 			$AtomHeader = fread($this->getid3->fp, 8);

    45 

    46 			$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));

    47 			$atomname = substr($AtomHeader, 4, 4);

    48 

    49 			// 64-bit MOV patch by jlegateØktnc*com

    50 			if ($atomsize == 1) {

    51 				$atomsize = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 8));

    52 			}

    53 

    54 			$info['quicktime'][$atomname]['name']   = $atomname;

    55 			$info['quicktime'][$atomname]['size']   = $atomsize;

    56 			$info['quicktime'][$atomname]['offset'] = $offset;

    57 

    58 			if (($offset + $atomsize) > $info['avdataend']) {

    59 				$info['error'][] = 'Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)';

    60 				return false;

    61 			}

    62 

    63 			if ($atomsize == 0) {

    64 				// Furthermore, for historical reasons the list of atoms is optionally

    65 				// terminated by a 32-bit integer set to 0. If you are writing a program

    66 				// to read user data atoms, you should allow for the terminating 0.

    67 				break;

    68 			}

    69 			switch ($atomname) {

    70 				case 'mdat': // Media DATa atom

    71 					// 'mdat' contains the actual data for the audio/video

    72 					if (($atomsize > 8) && (!isset($info['avdataend_tmp']) || ($info['quicktime'][$atomname]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {

    73 

    74 						$info['avdataoffset'] = $info['quicktime'][$atomname]['offset'] + 8;

    75 						$OldAVDataEnd         = $info['avdataend'];

    76 						$info['avdataend']    = $info['quicktime'][$atomname]['offset'] + $info['quicktime'][$atomname]['size'];

    77 

    78 						$getid3_temp = new getID3();

    79 						$getid3_temp->openfile($this->getid3->filename);

    80 						$getid3_temp->info['avdataoffset'] = $info['avdataoffset'];

    81 						$getid3_temp->info['avdataend']    = $info['avdataend'];

    82 						$getid3_mp3 = new getid3_mp3($getid3_temp);

    83 						if ($getid3_mp3->MPEGaudioHeaderValid($getid3_mp3->MPEGaudioHeaderDecode(fread($this->getid3->fp, 4)))) {

    84 							$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);

    85 							if (!empty($getid3_temp->info['warning'])) {

    86 								foreach ($getid3_temp->info['warning'] as $value) {

    87 									$info['warning'][] = $value;

    88 								}

    89 							}

    90 							if (!empty($getid3_temp->info['mpeg'])) {

    91 								$info['mpeg'] = $getid3_temp->info['mpeg'];

    92 								if (isset($info['mpeg']['audio'])) {

    93 									$info['audio']['dataformat']   = 'mp3';

    94 									$info['audio']['codec']        = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3')));

    95 									$info['audio']['sample_rate']  = $info['mpeg']['audio']['sample_rate'];

    96 									$info['audio']['channels']     = $info['mpeg']['audio']['channels'];

    97 									$info['audio']['bitrate']      = $info['mpeg']['audio']['bitrate'];

    98 									$info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);

    99 									$info['bitrate']               = $info['audio']['bitrate'];

   100 								}

   101 							}

   102 						}

   103 						unset($getid3_mp3, $getid3_temp);

   104 						$info['avdataend'] = $OldAVDataEnd;

   105 						unset($OldAVDataEnd);

   106 

   107 					}

   108 					break;

   109 

   110 				case 'free': // FREE space atom

   111 				case 'skip': // SKIP atom

   112 				case 'wide': // 64-bit expansion placeholder atom

   113 					// 'free', 'skip' and 'wide' are just padding, contains no useful data at all

   114 					break;

   115 

   116 				default:

   117 					$atomHierarchy = array();

   118 					$info['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, fread($this->getid3->fp, $atomsize), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);

   119 					break;

   120 			}

   121 

   122 			$offset += $atomsize;

   123 			$atomcounter++;

   124 		}

   125 

   126 		if (!empty($info['avdataend_tmp'])) {

   127 			// this value is assigned to a temp value and then erased because

   128 			// otherwise any atoms beyond the 'mdat' atom would not get parsed

   129 			$info['avdataend'] = $info['avdataend_tmp'];

   130 			unset($info['avdataend_tmp']);

   131 		}

   132 

   133 		if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {

   134 			$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];

   135 		}

   136 		if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {

   137 			$info['audio']['bitrate'] = $info['bitrate'];

   138 		}

   139 		if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {

   140 			foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {

   141 				$samples_per_second = $samples_count / $info['playtime_seconds'];

   142 				if ($samples_per_second > 240) {

   143 					// has to be audio samples

   144 				} else {

   145 					$info['video']['frame_rate'] = $samples_per_second;

   146 					break;

   147 				}

   148 			}

   149 		}

   150 		if (($info['audio']['dataformat'] == 'mp4') && empty($info['video']['resolution_x'])) {

   151 			$info['fileformat'] = 'mp4';

   152 			$info['mime_type']  = 'audio/mp4';

   153 			unset($info['video']['dataformat']);

   154 		}

   155 

   156 		if (!$this->ReturnAtomData) {

   157 			unset($info['quicktime']['moov']);

   158 		}

   159 

   160 		if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {

   161 			$info['audio']['dataformat'] = 'quicktime';

   162 		}

   163 		if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {

   164 			$info['video']['dataformat'] = 'quicktime';

   165 		}

   166 

   167 		return true;

   168 	}

   169 

   170 	public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {

   171 		// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm

   172 

   173 		$info = &$this->getid3->info;

   174 

   175 		//$atom_parent = array_pop($atomHierarchy);

   176 		$atom_parent = end($atomHierarchy); // http://www.getid3.org/phpBB3/viewtopic.php?t=1717

   177 		array_push($atomHierarchy, $atomname);

   178 		$atom_structure['hierarchy'] = implode(' ', $atomHierarchy);

   179 		$atom_structure['name']      = $atomname;

   180 		$atom_structure['size']      = $atomsize;

   181 		$atom_structure['offset']    = $baseoffset;

   182 //echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8)).'<br>';

   183 //echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8), false).'<br><br>';

   184 		switch ($atomname) {

   185 			case 'moov': // MOVie container atom

   186 			case 'trak': // TRAcK container atom

   187 			case 'clip': // CLIPping container atom

   188 			case 'matt': // track MATTe container atom

   189 			case 'edts': // EDiTS container atom

   190 			case 'tref': // Track REFerence container atom

   191 			case 'mdia': // MeDIA container atom

   192 			case 'minf': // Media INFormation container atom

   193 			case 'dinf': // Data INFormation container atom

   194 			case 'udta': // User DaTA container atom

   195 			case 'cmov': // Compressed MOVie container atom

   196 			case 'rmra': // Reference Movie Record Atom

   197 			case 'rmda': // Reference Movie Descriptor Atom

   198 			case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)

   199 				$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);

   200 				break;

   201 

   202 			case 'ilst': // Item LiST container atom

   203 				$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);

   204 

   205 				// some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted

   206 				$allnumericnames = true;

   207 				foreach ($atom_structure['subatoms'] as $subatomarray) {

   208 					if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {

   209 						$allnumericnames = false;

   210 						break;

   211 					}

   212 				}

   213 				if ($allnumericnames) {

   214 					$newData = array();

   215 					foreach ($atom_structure['subatoms'] as $subatomarray) {

   216 						foreach ($subatomarray['subatoms'] as $newData_subatomarray) {

   217 							unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);

   218 							$newData[$subatomarray['name']] = $newData_subatomarray;

   219 							break;

   220 						}

   221 					}

   222 					$atom_structure['data'] = $newData;

   223 					unset($atom_structure['subatoms']);

   224 				}

   225 				break;

   226 

   227 			case "\x00\x00\x00\x01":

   228 			case "\x00\x00\x00\x02":

   229 			case "\x00\x00\x00\x03":

   230 			case "\x00\x00\x00\x04":

   231 			case "\x00\x00\x00\x05":

   232 				$atomname = getid3_lib::BigEndian2Int($atomname);

   233 				$atom_structure['name'] = $atomname;

   234 				$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);

   235 				break;

   236 

   237 			case 'stbl': // Sample TaBLe container atom

   238 				$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);

   239 				$isVideo = false;

   240 				$framerate  = 0;

   241 				$framecount = 0;

   242 				foreach ($atom_structure['subatoms'] as $key => $value_array) {

   243 					if (isset($value_array['sample_description_table'])) {

   244 						foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {

   245 							if (isset($value_array2['data_format'])) {

   246 								switch ($value_array2['data_format']) {

   247 									case 'avc1':

   248 									case 'mp4v':

   249 										// video data

   250 										$isVideo = true;

   251 										break;

   252 									case 'mp4a':

   253 										// audio data

   254 										break;

   255 								}

   256 							}

   257 						}

   258 					} elseif (isset($value_array['time_to_sample_table'])) {

   259 						foreach ($value_array['time_to_sample_table'] as $key2 => $value_array2) {

   260 							if (isset($value_array2['sample_count']) && isset($value_array2['sample_duration']) && ($value_array2['sample_duration'] > 0)) {

   261 								$framerate  = round($info['quicktime']['time_scale'] / $value_array2['sample_duration'], 3);

   262 								$framecount = $value_array2['sample_count'];

   263 							}

   264 						}

   265 					}

   266 				}

   267 				if ($isVideo && $framerate) {

   268 					$info['quicktime']['video']['frame_rate'] = $framerate;

   269 					$info['video']['frame_rate'] = $info['quicktime']['video']['frame_rate'];

   270 				}

   271 				if ($isVideo && $framecount) {

   272 					$info['quicktime']['video']['frame_count'] = $framecount;

   273 				}

   274 				break;

   275 

   276 

   277 			case 'aART': // Album ARTist

   278 			case 'catg': // CaTeGory

   279 			case 'covr': // COVeR artwork

   280 			case 'cpil': // ComPILation

   281 			case 'cprt': // CoPyRighT

   282 			case 'desc': // DESCription

   283 			case 'disk': // DISK number

   284 			case 'egid': // Episode Global ID

   285 			case 'gnre': // GeNRE

   286 			case 'keyw': // KEYWord

   287 			case 'ldes':

   288 			case 'pcst': // PodCaST

   289 			case 'pgap': // GAPless Playback

   290 			case 'purd': // PURchase Date

   291 			case 'purl': // Podcast URL

   292 			case 'rati':

   293 			case 'rndu':

   294 			case 'rpdu':

   295 			case 'rtng': // RaTiNG

   296 			case 'stik':

   297 			case 'tmpo': // TeMPO (BPM)

   298 			case 'trkn': // TRacK Number

   299 			case 'tves': // TV EpiSode

   300 			case 'tvnn': // TV Network Name

   301 			case 'tvsh': // TV SHow Name

   302 			case 'tvsn': // TV SeasoN

   303 			case 'akID': // iTunes store account type

   304 			case 'apID':

   305 			case 'atID':

   306 			case 'cmID':

   307 			case 'cnID':

   308 			case 'geID':

   309 			case 'plID':

   310 			case 'sfID': // iTunes store country

   311 			case '©alb': // ALBum

   312 			case '©art': // ARTist

   313 			case '©ART':

   314 			case '©aut':

   315 			case '©cmt': // CoMmenT

   316 			case '©com': // COMposer

   317 			case '©cpy':

   318 			case '©day': // content created year

   319 			case '©dir':

   320 			case '©ed1':

   321 			case '©ed2':

   322 			case '©ed3':

   323 			case '©ed4':

   324 			case '©ed5':

   325 			case '©ed6':

   326 			case '©ed7':

   327 			case '©ed8':

   328 			case '©ed9':

   329 			case '©enc':

   330 			case '©fmt':

   331 			case '©gen': // GENre

   332 			case '©grp': // GRouPing

   333 			case '©hst':

   334 			case '©inf':

   335 			case '©lyr': // LYRics

   336 			case '©mak':

   337 			case '©mod':

   338 			case '©nam': // full NAMe

   339 			case '©ope':

   340 			case '©PRD':

   341 			case '©prd':

   342 			case '©prf':

   343 			case '©req':

   344 			case '©src':

   345 			case '©swr':

   346 			case '©too': // encoder

   347 			case '©trk': // TRacK

   348 			case '©url':

   349 			case '©wrn':

   350 			case '©wrt': // WRiTer

   351 			case '----': // itunes specific

   352 				if ($atom_parent == 'udta') {

   353 					// User data atom handler

   354 					$atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));

   355 					$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));

   356 					$atom_structure['data']        =                           substr($atom_data, 4);

   357 

   358 					$atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);

   359 					if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {

   360 						$info['comments']['language'][] = $atom_structure['language'];

   361 					}

   362 				} else {

   363 					// Apple item list box atom handler

   364 					$atomoffset = 0;

   365 					if (substr($atom_data, 2, 2) == "\x10\xB5") {

   366 						// not sure what it means, but observed on iPhone4 data.

   367 						// Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data

   368 						while ($atomoffset < strlen($atom_data)) {

   369 							$boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset,     2));

   370 							$boxsmalltype =                           substr($atom_data, $atomoffset + 2, 2);

   371 							$boxsmalldata =                           substr($atom_data, $atomoffset + 4, $boxsmallsize);

   372 							if ($boxsmallsize <= 1) {

   373 								$info['warning'][] = 'Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.$atomname.'" at offset: '.($atom_structure['offset'] + $atomoffset);

   374 								$atom_structure['data'] = null;

   375 								$atomoffset = strlen($atom_data);

   376 								break;

   377 							}

   378 							switch ($boxsmalltype) {

   379 								case "\x10\xB5":

   380 									$atom_structure['data'] = $boxsmalldata;

   381 									break;

   382 								default:

   383 									$info['warning'][] = 'Unknown QuickTime smallbox type: "'.getid3_lib::PrintHexBytes($boxsmalltype).'" at offset '.$baseoffset;

   384 									$atom_structure['data'] = $atom_data;

   385 									break;

   386 							}

   387 							$atomoffset += (4 + $boxsmallsize);

   388 						}

   389 					} else {

   390 						while ($atomoffset < strlen($atom_data)) {

   391 							$boxsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 4));

   392 							$boxtype =                           substr($atom_data, $atomoffset + 4, 4);

   393 							$boxdata =                           substr($atom_data, $atomoffset + 8, $boxsize - 8);

   394 							if ($boxsize <= 1) {

   395 								$info['warning'][] = 'Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.$atomname.'" at offset: '.($atom_structure['offset'] + $atomoffset);

   396 								$atom_structure['data'] = null;

   397 								$atomoffset = strlen($atom_data);

   398 								break;

   399 							}

   400 							$atomoffset += $boxsize;

   401 

   402 							switch ($boxtype) {

   403 								case 'mean':

   404 								case 'name':

   405 									$atom_structure[$boxtype] = substr($boxdata, 4);

   406 									break;

   407 

   408 								case 'data':

   409 									$atom_structure['version']   = getid3_lib::BigEndian2Int(substr($boxdata,  0, 1));

   410 									$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($boxdata,  1, 3));

   411 									switch ($atom_structure['flags_raw']) {

   412 										case 0:  // data flag

   413 										case 21: // tmpo/cpil flag

   414 											switch ($atomname) {

   415 												case 'cpil':

   416 												case 'pcst':

   417 												case 'pgap':

   418 													$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));

   419 													break;

   420 

   421 												case 'tmpo':

   422 													$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2));

   423 													break;

   424 

   425 												case 'disk':

   426 												case 'trkn':

   427 													$num       = getid3_lib::BigEndian2Int(substr($boxdata, 10, 2));

   428 													$num_total = getid3_lib::BigEndian2Int(substr($boxdata, 12, 2));

   429 													$atom_structure['data']  = empty($num) ? '' : $num;

   430 													$atom_structure['data'] .= empty($num_total) ? '' : '/'.$num_total;

   431 													break;

   432 

   433 												case 'gnre':

   434 													$GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));

   435 													$atom_structure['data']    = getid3_id3v1::LookupGenreName($GenreID - 1);

   436 													break;

   437 

   438 												case 'rtng':

   439 													$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));

   440 													$atom_structure['data']    = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]);

   441 													break;

   442 

   443 												case 'stik':

   444 													$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));

   445 													$atom_structure['data']    = $this->QuicktimeSTIKLookup($atom_structure[$atomname]);

   446 													break;

   447 

   448 												case 'sfID':

   449 													$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));

   450 													$atom_structure['data']    = $this->QuicktimeStoreFrontCodeLookup($atom_structure[$atomname]);

   451 													break;

   452 

   453 												case 'egid':

   454 												case 'purl':

   455 													$atom_structure['data'] = substr($boxdata, 8);

   456 													break;

   457 

   458 												default:

   459 													$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));

   460 											}

   461 											break;

   462 

   463 										case 1:  // text flag

   464 										case 13: // image flag

   465 										default:

   466 											$atom_structure['data'] = substr($boxdata, 8);

   467 											break;

   468 

   469 									}

   470 									break;

   471 

   472 								default:

   473 									$info['warning'][] = 'Unknown QuickTime box type: "'.getid3_lib::PrintHexBytes($boxtype).'" at offset '.$baseoffset;

   474 									$atom_structure['data'] = $atom_data;

   475 

   476 							}

   477 						}

   478 					}

   479 				}

   480 				$this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);

   481 				break;

   482 

   483 

   484 			case 'play': // auto-PLAY atom

   485 				$atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   486 

   487 				$info['quicktime']['autoplay'] = $atom_structure['autoplay'];

   488 				break;

   489 

   490 

   491 			case 'WLOC': // Window LOCation atom

   492 				$atom_structure['location_x']  = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2));

   493 				$atom_structure['location_y']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 2));

   494 				break;

   495 

   496 

   497 			case 'LOOP': // LOOPing atom

   498 			case 'SelO': // play SELection Only atom

   499 			case 'AllF': // play ALL Frames atom

   500 				$atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);

   501 				break;

   502 

   503 

   504 			case 'name': //

   505 			case 'MCPS': // Media Cleaner PRo

   506 			case '@PRM': // adobe PReMiere version

   507 			case '@PRQ': // adobe PRemiere Quicktime version

   508 				$atom_structure['data'] = $atom_data;

   509 				break;

   510 

   511 

   512 			case 'cmvd': // Compressed MooV Data atom

   513 				// Code by ubergeekØubergeek*tv based on information from

   514 				// http://developer.apple.com/quicktime/icefloe/dispatch012.html

   515 				$atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));

   516 

   517 				$CompressedFileData = substr($atom_data, 4);

   518 				if ($UncompressedHeader = @gzuncompress($CompressedFileData)) {

   519 					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms);

   520 				} else {

   521 					$info['warning'][] = 'Error decompressing compressed MOV atom at offset '.$atom_structure['offset'];

   522 				}

   523 				break;

   524 

   525 

   526 			case 'dcom': // Data COMpression atom

   527 				$atom_structure['compression_id']   = $atom_data;

   528 				$atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);

   529 				break;

   530 

   531 

   532 			case 'rdrf': // Reference movie Data ReFerence atom

   533 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   534 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));

   535 				$atom_structure['flags']['internal_data'] = (bool) ($atom_structure['flags_raw'] & 0x000001);

   536 

   537 				$atom_structure['reference_type_name']    =                           substr($atom_data,  4, 4);

   538 				$atom_structure['reference_length']       = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));

   539 				switch ($atom_structure['reference_type_name']) {

   540 					case 'url ':

   541 						$atom_structure['url']            =       $this->NoNullString(substr($atom_data, 12));

   542 						break;

   543 

   544 					case 'alis':

   545 						$atom_structure['file_alias']     =                           substr($atom_data, 12);

   546 						break;

   547 

   548 					case 'rsrc':

   549 						$atom_structure['resource_alias'] =                           substr($atom_data, 12);

   550 						break;

   551 

   552 					default:

   553 						$atom_structure['data']           =                           substr($atom_data, 12);

   554 						break;

   555 				}

   556 				break;

   557 

   558 

   559 			case 'rmqu': // Reference Movie QUality atom

   560 				$atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);

   561 				break;

   562 

   563 

   564 			case 'rmcs': // Reference Movie Cpu Speed atom

   565 				$atom_structure['version']          = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   566 				$atom_structure['flags_raw']        = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   567 				$atom_structure['cpu_speed_rating'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));

   568 				break;

   569 

   570 

   571 			case 'rmvc': // Reference Movie Version Check atom

   572 				$atom_structure['version']            = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   573 				$atom_structure['flags_raw']          = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   574 				$atom_structure['gestalt_selector']   =                           substr($atom_data,  4, 4);

   575 				$atom_structure['gestalt_value_mask'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));

   576 				$atom_structure['gestalt_value']      = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));

   577 				$atom_structure['gestalt_check_type'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));

   578 				break;

   579 

   580 

   581 			case 'rmcd': // Reference Movie Component check atom

   582 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   583 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   584 				$atom_structure['component_type']         =                           substr($atom_data,  4, 4);

   585 				$atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);

   586 				$atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);

   587 				$atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));

   588 				$atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));

   589 				$atom_structure['component_min_version']  = getid3_lib::BigEndian2Int(substr($atom_data, 24, 4));

   590 				break;

   591 

   592 

   593 			case 'rmdr': // Reference Movie Data Rate atom

   594 				$atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   595 				$atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   596 				$atom_structure['data_rate']     = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   597 

   598 				$atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;

   599 				break;

   600 

   601 

   602 			case 'rmla': // Reference Movie Language Atom

   603 				$atom_structure['version']     = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   604 				$atom_structure['flags_raw']   = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   605 				$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));

   606 

   607 				$atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);

   608 				if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {

   609 					$info['comments']['language'][] = $atom_structure['language'];

   610 				}

   611 				break;

   612 

   613 

   614 			case 'rmla': // Reference Movie Language Atom

   615 				$atom_structure['version']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   616 				$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   617 				$atom_structure['track_id']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));

   618 				break;

   619 

   620 

   621 			case 'ptv ': // Print To Video - defines a movie's full screen mode

   622 				// http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm

   623 				$atom_structure['display_size_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));

   624 				$atom_structure['reserved_1']        = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); // hardcoded: 0x0000

   625 				$atom_structure['reserved_2']        = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x0000

   626 				$atom_structure['slide_show_flag']   = getid3_lib::BigEndian2Int(substr($atom_data, 6, 1));

   627 				$atom_structure['play_on_open_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 7, 1));

   628 

   629 				$atom_structure['flags']['play_on_open'] = (bool) $atom_structure['play_on_open_flag'];

   630 				$atom_structure['flags']['slide_show']   = (bool) $atom_structure['slide_show_flag'];

   631 

   632 				$ptv_lookup[0] = 'normal';

   633 				$ptv_lookup[1] = 'double';

   634 				$ptv_lookup[2] = 'half';

   635 				$ptv_lookup[3] = 'full';

   636 				$ptv_lookup[4] = 'current';

   637 				if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {

   638 					$atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];

   639 				} else {

   640 					$info['warning'][] = 'unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')';

   641 				}

   642 				break;

   643 

   644 

   645 			case 'stsd': // Sample Table Sample Description atom

   646 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   647 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   648 				$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   649 				$stsdEntriesDataOffset = 8;

   650 				for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   651 					$atom_structure['sample_description_table'][$i]['size']             = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 4));

   652 					$stsdEntriesDataOffset += 4;

   653 					$atom_structure['sample_description_table'][$i]['data_format']      =                           substr($atom_data, $stsdEntriesDataOffset, 4);

   654 					$stsdEntriesDataOffset += 4;

   655 					$atom_structure['sample_description_table'][$i]['reserved']         = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 6));

   656 					$stsdEntriesDataOffset += 6;

   657 					$atom_structure['sample_description_table'][$i]['reference_index']  = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 2));

   658 					$stsdEntriesDataOffset += 2;

   659 					$atom_structure['sample_description_table'][$i]['data']             =                           substr($atom_data, $stsdEntriesDataOffset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));

   660 					$stsdEntriesDataOffset += ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);

   661 

   662 					$atom_structure['sample_description_table'][$i]['encoder_version']  = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  0, 2));

   663 					$atom_structure['sample_description_table'][$i]['encoder_revision'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  2, 2));

   664 					$atom_structure['sample_description_table'][$i]['encoder_vendor']   =                           substr($atom_structure['sample_description_table'][$i]['data'],  4, 4);

   665 

   666 					switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {

   667 

   668 						case "\x00\x00\x00\x00":

   669 							// audio tracks

   670 							$atom_structure['sample_description_table'][$i]['audio_channels']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  2));

   671 							$atom_structure['sample_description_table'][$i]['audio_bit_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10,  2));

   672 							$atom_structure['sample_description_table'][$i]['audio_compression_id'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  2));

   673 							$atom_structure['sample_description_table'][$i]['audio_packet_size']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14,  2));

   674 							$atom_structure['sample_description_table'][$i]['audio_sample_rate']    = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16,  4));

   675 

   676 							// video tracks

   677 							// http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html

   678 							$atom_structure['sample_description_table'][$i]['temporal_quality'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));

   679 							$atom_structure['sample_description_table'][$i]['spatial_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));

   680 							$atom_structure['sample_description_table'][$i]['width']            =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));

   681 							$atom_structure['sample_description_table'][$i]['height']           =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));

   682 							$atom_structure['sample_description_table'][$i]['resolution_x']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));

   683 							$atom_structure['sample_description_table'][$i]['resolution_y']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));

   684 							$atom_structure['sample_description_table'][$i]['data_size']        =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  4));

   685 							$atom_structure['sample_description_table'][$i]['frame_count']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36,  2));

   686 							$atom_structure['sample_description_table'][$i]['compressor_name']  =                             substr($atom_structure['sample_description_table'][$i]['data'], 38,  4);

   687 							$atom_structure['sample_description_table'][$i]['pixel_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42,  2));

   688 							$atom_structure['sample_description_table'][$i]['color_table_id']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44,  2));

   689 

   690 							switch ($atom_structure['sample_description_table'][$i]['data_format']) {

   691 								case '2vuY':

   692 								case 'avc1':

   693 								case 'cvid':

   694 								case 'dvc ':

   695 								case 'dvcp':

   696 								case 'gif ':

   697 								case 'h263':

   698 								case 'jpeg':

   699 								case 'kpcd':

   700 								case 'mjpa':

   701 								case 'mjpb':

   702 								case 'mp4v':

   703 								case 'png ':

   704 								case 'raw ':

   705 								case 'rle ':

   706 								case 'rpza':

   707 								case 'smc ':

   708 								case 'SVQ1':

   709 								case 'SVQ3':

   710 								case 'tiff':

   711 								case 'v210':

   712 								case 'v216':

   713 								case 'v308':

   714 								case 'v408':

   715 								case 'v410':

   716 								case 'yuv2':

   717 									$info['fileformat'] = 'mp4';

   718 									$info['video']['fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];

   719 // http://www.getid3.org/phpBB3/viewtopic.php?t=1550

   720 //if ((!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['width'])) && (empty($info['video']['resolution_x']) || empty($info['video']['resolution_y']) || (number_format($info['video']['resolution_x'], 6) != number_format(round($info['video']['resolution_x']), 6)) || (number_format($info['video']['resolution_y'], 6) != number_format(round($info['video']['resolution_y']), 6)))) { // ugly check for floating point numbers

   721 if (!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['height'])) {

   722 	// assume that values stored here are more important than values stored in [tkhd] atom

   723 	$info['video']['resolution_x'] = $atom_structure['sample_description_table'][$i]['width'];

   724 	$info['video']['resolution_y'] = $atom_structure['sample_description_table'][$i]['height'];

   725 	$info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];

   726 	$info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];

   727 }

   728 									break;

   729 

   730 								case 'qtvr':

   731 									$info['video']['dataformat'] = 'quicktimevr';

   732 									break;

   733 

   734 								case 'mp4a':

   735 								default:

   736 									$info['quicktime']['audio']['codec']       = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);

   737 									$info['quicktime']['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];

   738 									$info['quicktime']['audio']['channels']    = $atom_structure['sample_description_table'][$i]['audio_channels'];

   739 									$info['quicktime']['audio']['bit_depth']   = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];

   740 									$info['audio']['codec']                    = $info['quicktime']['audio']['codec'];

   741 									$info['audio']['sample_rate']              = $info['quicktime']['audio']['sample_rate'];

   742 									$info['audio']['channels']                 = $info['quicktime']['audio']['channels'];

   743 									$info['audio']['bits_per_sample']          = $info['quicktime']['audio']['bit_depth'];

   744 									switch ($atom_structure['sample_description_table'][$i]['data_format']) {

   745 										case 'raw ': // PCM

   746 										case 'alac': // Apple Lossless Audio Codec

   747 											$info['audio']['lossless'] = true;

   748 											break;

   749 										default:

   750 											$info['audio']['lossless'] = false;

   751 											break;

   752 									}

   753 									break;

   754 							}

   755 							break;

   756 

   757 						default:

   758 							switch ($atom_structure['sample_description_table'][$i]['data_format']) {

   759 								case 'mp4s':

   760 									$info['fileformat'] = 'mp4';

   761 									break;

   762 

   763 								default:

   764 									// video atom

   765 									$atom_structure['sample_description_table'][$i]['video_temporal_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));

   766 									$atom_structure['sample_description_table'][$i]['video_spatial_quality']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));

   767 									$atom_structure['sample_description_table'][$i]['video_frame_width']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));

   768 									$atom_structure['sample_description_table'][$i]['video_frame_height']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));

   769 									$atom_structure['sample_description_table'][$i]['video_resolution_x']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20,  4));

   770 									$atom_structure['sample_description_table'][$i]['video_resolution_y']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));

   771 									$atom_structure['sample_description_table'][$i]['video_data_size']         =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));

   772 									$atom_structure['sample_description_table'][$i]['video_frame_count']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  2));

   773 									$atom_structure['sample_description_table'][$i]['video_encoder_name_len']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 34,  1));

   774 									$atom_structure['sample_description_table'][$i]['video_encoder_name']      =                             substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);

   775 									$atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66,  2));

   776 									$atom_structure['sample_description_table'][$i]['video_color_table_id']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68,  2));

   777 

   778 									$atom_structure['sample_description_table'][$i]['video_pixel_color_type']  = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');

   779 									$atom_structure['sample_description_table'][$i]['video_pixel_color_name']  = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);

   780 

   781 									if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {

   782 										$info['quicktime']['video']['codec_fourcc']        = $atom_structure['sample_description_table'][$i]['data_format'];

   783 										$info['quicktime']['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);

   784 										$info['quicktime']['video']['codec']               = (($atom_structure['sample_description_table'][$i]['video_encoder_name_len'] > 0) ? $atom_structure['sample_description_table'][$i]['video_encoder_name'] : $atom_structure['sample_description_table'][$i]['data_format']);

   785 										$info['quicktime']['video']['color_depth']         = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];

   786 										$info['quicktime']['video']['color_depth_name']    = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];

   787 

   788 										$info['video']['codec']           = $info['quicktime']['video']['codec'];

   789 										$info['video']['bits_per_sample'] = $info['quicktime']['video']['color_depth'];

   790 									}

   791 									$info['video']['lossless']           = false;

   792 									$info['video']['pixel_aspect_ratio'] = (float) 1;

   793 									break;

   794 							}

   795 							break;

   796 					}

   797 					switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {

   798 						case 'mp4a':

   799 							$info['audio']['dataformat']         = 'mp4';

   800 							$info['quicktime']['audio']['codec'] = 'mp4';

   801 							break;

   802 

   803 						case '3ivx':

   804 						case '3iv1':

   805 						case '3iv2':

   806 							$info['video']['dataformat'] = '3ivx';

   807 							break;

   808 

   809 						case 'xvid':

   810 							$info['video']['dataformat'] = 'xvid';

   811 							break;

   812 

   813 						case 'mp4v':

   814 							$info['video']['dataformat'] = 'mpeg4';

   815 							break;

   816 

   817 						case 'divx':

   818 						case 'div1':

   819 						case 'div2':

   820 						case 'div3':

   821 						case 'div4':

   822 						case 'div5':

   823 						case 'div6':

   824 							$info['video']['dataformat'] = 'divx';

   825 							break;

   826 

   827 						default:

   828 							// do nothing

   829 							break;

   830 					}

   831 					unset($atom_structure['sample_description_table'][$i]['data']);

   832 				}

   833 				break;

   834 

   835 

   836 			case 'stts': // Sample Table Time-to-Sample atom

   837 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   838 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   839 				$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   840 				$sttsEntriesDataOffset = 8;

   841 				//$FrameRateCalculatorArray = array();

   842 				$frames_count = 0;

   843 				for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   844 					$atom_structure['time_to_sample_table'][$i]['sample_count']    = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));

   845 					$sttsEntriesDataOffset += 4;

   846 					$atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));

   847 					$sttsEntriesDataOffset += 4;

   848 

   849 					$frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count'];

   850 

   851 					// THIS SECTION REPLACED WITH CODE IN "stbl" ATOM

   852 					//if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {

   853 					//	$stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];

   854 					//	if ($stts_new_framerate <= 60) {

   855 					//		// some atoms have durations of "1" giving a very large framerate, which probably is not right

   856 					//		$info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);

   857 					//	}

   858 					//}

   859 					//

   860 					//$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];

   861 				}

   862 				$info['quicktime']['stts_framecount'][] = $frames_count;

   863 				//$sttsFramesTotal  = 0;

   864 				//$sttsSecondsTotal = 0;

   865 				//foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {

   866 				//	if (($frames_per_second > 60) || ($frames_per_second < 1)) {

   867 				//		// not video FPS information, probably audio information

   868 				//		$sttsFramesTotal  = 0;

   869 				//		$sttsSecondsTotal = 0;

   870 				//		break;

   871 				//	}

   872 				//	$sttsFramesTotal  += $frame_count;

   873 				//	$sttsSecondsTotal += $frame_count / $frames_per_second;

   874 				//}

   875 				//if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {

   876 				//	if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {

   877 				//		$info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;

   878 				//	}

   879 				//}

   880 				break;

   881 

   882 

   883 			case 'stss': // Sample Table Sync Sample (key frames) atom

   884 				if ($ParseAllPossibleAtoms) {

   885 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   886 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   887 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   888 					$stssEntriesDataOffset = 8;

   889 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   890 						$atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stssEntriesDataOffset, 4));

   891 						$stssEntriesDataOffset += 4;

   892 					}

   893 				}

   894 				break;

   895 

   896 

   897 			case 'stsc': // Sample Table Sample-to-Chunk atom

   898 				if ($ParseAllPossibleAtoms) {

   899 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   900 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   901 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   902 					$stscEntriesDataOffset = 8;

   903 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   904 						$atom_structure['sample_to_chunk_table'][$i]['first_chunk']        = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));

   905 						$stscEntriesDataOffset += 4;

   906 						$atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk']  = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));

   907 						$stscEntriesDataOffset += 4;

   908 						$atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));

   909 						$stscEntriesDataOffset += 4;

   910 					}

   911 				}

   912 				break;

   913 

   914 

   915 			case 'stsz': // Sample Table SiZe atom

   916 				if ($ParseAllPossibleAtoms) {

   917 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   918 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   919 					$atom_structure['sample_size']    = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   920 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));

   921 					$stszEntriesDataOffset = 12;

   922 					if ($atom_structure['sample_size'] == 0) {

   923 						for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   924 							$atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stszEntriesDataOffset, 4));

   925 							$stszEntriesDataOffset += 4;

   926 						}

   927 					}

   928 				}

   929 				break;

   930 

   931 

   932 			case 'stco': // Sample Table Chunk Offset atom

   933 				if ($ParseAllPossibleAtoms) {

   934 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   935 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   936 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   937 					$stcoEntriesDataOffset = 8;

   938 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   939 						$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 4));

   940 						$stcoEntriesDataOffset += 4;

   941 					}

   942 				}

   943 				break;

   944 

   945 

   946 			case 'co64': // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)

   947 				if ($ParseAllPossibleAtoms) {

   948 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   949 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   950 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   951 					$stcoEntriesDataOffset = 8;

   952 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   953 						$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 8));

   954 						$stcoEntriesDataOffset += 8;

   955 					}

   956 				}

   957 				break;

   958 

   959 

   960 			case 'dref': // Data REFerence atom

   961 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   962 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   963 				$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

   964 				$drefDataOffset = 8;

   965 				for ($i = 0; $i < $atom_structure['number_entries']; $i++) {

   966 					$atom_structure['data_references'][$i]['size']                    = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 4));

   967 					$drefDataOffset += 4;

   968 					$atom_structure['data_references'][$i]['type']                    =               substr($atom_data, $drefDataOffset, 4);

   969 					$drefDataOffset += 4;

   970 					$atom_structure['data_references'][$i]['version']                 = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 1));

   971 					$drefDataOffset += 1;

   972 					$atom_structure['data_references'][$i]['flags_raw']               = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 3)); // hardcoded: 0x0000

   973 					$drefDataOffset += 3;

   974 					$atom_structure['data_references'][$i]['data']                    =               substr($atom_data, $drefDataOffset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));

   975 					$drefDataOffset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);

   976 

   977 					$atom_structure['data_references'][$i]['flags']['self_reference'] = (bool) ($atom_structure['data_references'][$i]['flags_raw'] & 0x001);

   978 				}

   979 				break;

   980 

   981 

   982 			case 'gmin': // base Media INformation atom

   983 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   984 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   985 				$atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));

   986 				$atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));

   987 				$atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));

   988 				$atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));

   989 				$atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data, 12, 2));

   990 				$atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));

   991 				break;

   992 

   993 

   994 			case 'smhd': // Sound Media information HeaDer atom

   995 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

   996 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

   997 				$atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));

   998 				$atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));

   999 				break;

  1000 

  1001 

  1002 			case 'vmhd': // Video Media information HeaDer atom

  1003 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

  1004 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));

  1005 				$atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));

  1006 				$atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));

  1007 				$atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));

  1008 				$atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));

  1009 

  1010 				$atom_structure['flags']['no_lean_ahead'] = (bool) ($atom_structure['flags_raw'] & 0x001);

  1011 				break;

  1012 

  1013 

  1014 			case 'hdlr': // HanDLeR reference atom

  1015 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

  1016 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

  1017 				$atom_structure['component_type']         =                           substr($atom_data,  4, 4);

  1018 				$atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);

  1019 				$atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);

  1020 				$atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));

  1021 				$atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));

  1022 				$atom_structure['component_name']         =      $this->Pascal2String(substr($atom_data, 24));

  1023 

  1024 				if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {

  1025 					$info['video']['dataformat'] = 'quicktimevr';

  1026 				}

  1027 				break;

  1028 

  1029 

  1030 			case 'mdhd': // MeDia HeaDer atom

  1031 				$atom_structure['version']               = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

  1032 				$atom_structure['flags_raw']             = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

  1033 				$atom_structure['creation_time']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

  1034 				$atom_structure['modify_time']           = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));

  1035 				$atom_structure['time_scale']            = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));

  1036 				$atom_structure['duration']              = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));

  1037 				$atom_structure['language_id']           = getid3_lib::BigEndian2Int(substr($atom_data, 20, 2));

  1038 				$atom_structure['quality']               = getid3_lib::BigEndian2Int(substr($atom_data, 22, 2));

  1039 

  1040 				if ($atom_structure['time_scale'] == 0) {

  1041 					$info['error'][] = 'Corrupt Quicktime file: mdhd.time_scale == zero';

  1042 					return false;

  1043 				}

  1044 				$info['quicktime']['time_scale'] = (isset($info['quicktime']['time_scale']) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);

  1045 

  1046 				$atom_structure['creation_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['creation_time']);

  1047 				$atom_structure['modify_time_unix']      = getid3_lib::DateMac2Unix($atom_structure['modify_time']);

  1048 				$atom_structure['playtime_seconds']      = $atom_structure['duration'] / $atom_structure['time_scale'];

  1049 				$atom_structure['language']              = $this->QuicktimeLanguageLookup($atom_structure['language_id']);

  1050 				if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {

  1051 					$info['comments']['language'][] = $atom_structure['language'];

  1052 				}

  1053 				break;

  1054 

  1055 

  1056 			case 'pnot': // Preview atom

  1057 				$atom_structure['modification_date']      = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // "standard Macintosh format"

  1058 				$atom_structure['version_number']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x00

  1059 				$atom_structure['atom_type']              =               substr($atom_data,  6, 4);        // usually: 'PICT'

  1060 				$atom_structure['atom_index']             = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2)); // usually: 0x01

  1061 

  1062 				$atom_structure['modification_date_unix'] = getid3_lib::DateMac2Unix($atom_structure['modification_date']);

  1063 				break;

  1064 

  1065 

  1066 			case 'crgn': // Clipping ReGioN atom

  1067 				$atom_structure['region_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2)); // The Region size, Region boundary box,

  1068 				$atom_structure['boundary_box']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 8)); // and Clipping region data fields

  1069 				$atom_structure['clipping_data'] =               substr($atom_data, 10);           // constitute a QuickDraw region.

  1070 				break;

  1071 

  1072 

  1073 			case 'load': // track LOAD settings atom

  1074 				$atom_structure['preload_start_time'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));

  1075 				$atom_structure['preload_duration']   = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

  1076 				$atom_structure['preload_flags_raw']  = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));

  1077 				$atom_structure['default_hints_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));

  1078 

  1079 				$atom_structure['default_hints']['double_buffer'] = (bool) ($atom_structure['default_hints_raw'] & 0x0020);

  1080 				$atom_structure['default_hints']['high_quality']  = (bool) ($atom_structure['default_hints_raw'] & 0x0100);

  1081 				break;

  1082 

  1083 

  1084 			case 'tmcd': // TiMe CoDe atom

  1085 			case 'chap': // CHAPter list atom

  1086 			case 'sync': // SYNChronization atom

  1087 			case 'scpt': // tranSCriPT atom

  1088 			case 'ssrc': // non-primary SouRCe atom

  1089 				for ($i = 0; $i < (strlen($atom_data) % 4); $i++) {

  1090 					$atom_structure['track_id'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $i * 4, 4));

  1091 				}

  1092 				break;

  1093 

  1094 

  1095 			case 'elst': // Edit LiST atom

  1096 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

  1097 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

  1098 				$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

  1099 				for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) {

  1100 					$atom_structure['edit_list'][$i]['track_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4));

  1101 					$atom_structure['edit_list'][$i]['media_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4));

  1102 					$atom_structure['edit_list'][$i]['media_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4));

  1103 				}

  1104 				break;

  1105 

  1106 

  1107 			case 'kmat': // compressed MATte atom

  1108 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

  1109 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000

  1110 				$atom_structure['matte_data_raw'] =               substr($atom_data,  4);

  1111 				break;

  1112 

  1113 

  1114 			case 'ctab': // Color TABle atom

  1115 				$atom_structure['color_table_seed']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // hardcoded: 0x00000000

  1116 				$atom_structure['color_table_flags']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x8000

  1117 				$atom_structure['color_table_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2)) + 1;

  1118 				for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {

  1119 					$atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2));

  1120 					$atom_structure['color_table'][$colortableentry]['red']   = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2));

  1121 					$atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2));

  1122 					$atom_structure['color_table'][$colortableentry]['blue']  = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2));

  1123 				}

  1124 				break;

  1125 

  1126 

  1127 			case 'mvhd': // MoVie HeaDer atom

  1128 				$atom_structure['version']            =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));

  1129 				$atom_structure['flags_raw']          =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));

  1130 				$atom_structure['creation_time']      =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));

  1131 				$atom_structure['modify_time']        =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));

  1132 				$atom_structure['time_scale']         =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));

  1133 				$atom_structure['duration']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));

  1134 				$atom_structure['preferred_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 20, 4));

  1135 				$atom_structure['preferred_volume']   =   getid3_lib::FixedPoint8_8(substr($atom_data, 24, 2));