getid3_matroska::Analyze(): bool

262	public function Analyze()263	{264		$info = &$this->getid3->info;265		$this->scan_mode = $this->parse_whole_file ? MATROSKA_SCAN_WHOLE_FILE : MATROSKA_SCAN_HEADER;266 267		// parse container268		try {269			$this->parseEBML($info);270		} catch (Exception $e) {271			$this->error('EBML parser: '.$e->getMessage());272		}273 274		$this->playtimeFromMetadata($info);275 276		// If there was no duration metadata, this might be an incomplete file or a streaming file277		// We need Cluster information so we can use their timecodes to estimate playtime.278		if (!isset($info['playtime_seconds']) && !$this->parse_whole_file) {279			// Scan the start and end of file for Clusters to estimate duration280			$this->scanStartEndForClusters($info);281		}282 283		if (isset($info['matroska']['cluster']) && is_array($info['matroska']['cluster'])) {284			if (!isset($info['playtime_seconds']) && !empty($info['matroska']['cluster'])) {285				// estimate playtime using clusters if not yet known286				$this->calculatePlaytimeFromClusters($info);287			}288 289			// Remove cluster information from output if hide_clusters is true290			// These could have been set during scanStartEndForClusters()291			if ($this->hide_clusters) {292				unset($info['matroska']['cluster']);293			}294		}295 296		// extract tags297		if (isset($info['matroska']['tags']) && is_array($info['matroska']['tags'])) {298			foreach ($info['matroska']['tags'] as $key => $infoarray) {299				$this->ExtractCommentsSimpleTag($infoarray);300			}301		}302 303		// process tracks304		if (isset($info['matroska']['tracks']['tracks']) && is_array($info['matroska']['tracks']['tracks'])) {305			foreach ($info['matroska']['tracks']['tracks'] as $key => $trackarray) {306 307				$track_info = array();308				$track_info['dataformat'] = self::CodecIDtoCommonName($trackarray['CodecID']);309				$track_info['default'] = (isset($trackarray['FlagDefault']) ? $trackarray['FlagDefault'] : true);310				if (isset($trackarray['Name'])) { $track_info['name'] = $trackarray['Name']; }311 312				switch ($trackarray['TrackType']) {313 314					case 1: // Video315						$track_info['resolution_x'] = $trackarray['PixelWidth'];316						$track_info['resolution_y'] = $trackarray['PixelHeight'];317						$track_info['display_unit'] = self::displayUnit(isset($trackarray['DisplayUnit']) ? $trackarray['DisplayUnit'] : 0);318						$track_info['display_x']    = (isset($trackarray['DisplayWidth']) ? $trackarray['DisplayWidth'] : $trackarray['PixelWidth']);319						$track_info['display_y']    = (isset($trackarray['DisplayHeight']) ? $trackarray['DisplayHeight'] : $trackarray['PixelHeight']);320 321						if (isset($trackarray['PixelCropBottom']))  { $track_info['crop_bottom'] = $trackarray['PixelCropBottom']; }322						if (isset($trackarray['PixelCropTop']))     { $track_info['crop_top']    = $trackarray['PixelCropTop']; }323						if (isset($trackarray['PixelCropLeft']))    { $track_info['crop_left']   = $trackarray['PixelCropLeft']; }324						if (isset($trackarray['PixelCropRight']))   { $track_info['crop_right']  = $trackarray['PixelCropRight']; }325						if (!empty($trackarray['DefaultDuration'])) { $track_info['frame_rate']  = round(1000000000 / $trackarray['DefaultDuration'], 3); }326						if (isset($trackarray['CodecName']))        { $track_info['codec']       = $trackarray['CodecName']; }327 328						switch ($trackarray['CodecID']) {329							case 'V_MS/VFW/FOURCC':330								getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true);331 332								$parsed = getid3_riff::ParseBITMAPINFOHEADER($trackarray['CodecPrivate']);333								$track_info['codec'] = getid3_riff::fourccLookup($parsed['fourcc']);334								$info['matroska']['track_codec_parsed'][$trackarray['TrackNumber']] = $parsed;335								break;336 337							/*case 'V_MPEG4/ISO/AVC':338								$h264['profile']    = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], 1, 1));339								$h264['level']      = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], 3, 1));340								$rn                 = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], 4, 1));341								$h264['NALUlength'] = ($rn & 3) + 1;