getid3_quicktime::QuicktimeParseAtom( string $atomname, int $atomsize, string $atom_data, int $baseoffset, array $atomHierarchy, bool $ParseAllPossibleAtoms ): array|false

276	public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {277		// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm278		// https://code.google.com/p/mp4v2/wiki/iTunesMetadata279 280		$info = &$this->getid3->info;281 282		$atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see https://www.getid3.org/phpBB3/viewtopic.php?t=1717283		array_push($atomHierarchy, $atomname);284		$atom_structure              = array();285		$atom_structure['hierarchy'] = implode(' ', $atomHierarchy);286		$atom_structure['name']      = $atomname;287		$atom_structure['size']      = $atomsize;288		$atom_structure['offset']    = $baseoffset;289		if (substr($atomname, 0, 3) == "\x00\x00\x00") {290			// https://github.com/JamesHeinrich/getID3/issues/139291			$atomname = getid3_lib::BigEndian2Int($atomname);292			$atom_structure['name'] = $atomname;293			$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);294		} else {295			switch ($atomname) {296				case 'moov': // MOVie container atom297				case 'moof': // MOvie Fragment box298				case 'trak': // TRAcK container atom299				case 'traf': // TRAck Fragment box300				case 'clip': // CLIPping container atom301				case 'matt': // track MATTe container atom302				case 'edts': // EDiTS container atom303				case 'tref': // Track REFerence container atom304				case 'mdia': // MeDIA container atom305				case 'minf': // Media INFormation container atom306				case 'dinf': // Data INFormation container atom307				case 'nmhd': // Null Media HeaDer container atom308				case 'udta': // User DaTA container atom309				case 'cmov': // Compressed MOVie container atom310				case 'rmra': // Reference Movie Record Atom311				case 'rmda': // Reference Movie Descriptor Atom312				case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)313					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);314					break;315 316				case 'ilst': // Item LiST container atom317					if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) {318						// some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted319						$allnumericnames = true;320						foreach ($atom_structure['subatoms'] as $subatomarray) {321							if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {322								$allnumericnames = false;323								break;324							}325						}326						if ($allnumericnames) {327							$newData = array();328							foreach ($atom_structure['subatoms'] as $subatomarray) {329								foreach ($subatomarray['subatoms'] as $newData_subatomarray) {330									unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);331									$newData[$subatomarray['name']] = $newData_subatomarray;332									break;333								}334							}335							$atom_structure['data'] = $newData;336							unset($atom_structure['subatoms']);337						}338					}339					break;340 341				case 'stbl': // Sample TaBLe container atom342					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);343					$isVideo = false;344					$framerate  = 0;345					$framecount = 0;346					foreach ($atom_structure['subatoms'] as $key => $value_array) {347						if (isset($value_array['sample_description_table'])) {348							foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {349								if (isset($value_array2['data_format'])) {350									switch ($value_array2['data_format']) {351										case 'avc1':352										case 'mp4v':353											// video data354											$isVideo = true;355											break;