getid3_flac::parseMETAdata(): bool

52	public function parseMETAdata() {53		$info = &$this->getid3->info;54		do {55			$BlockOffset   = $this->ftell();56			$BlockHeader   = $this->fread(4);57			$LBFBT         = getid3_lib::BigEndian2Int(substr($BlockHeader, 0, 1));  // LBFBT = LastBlockFlag + BlockType58			$LastBlockFlag = (bool) ($LBFBT & 0x80);59			$BlockType     =        ($LBFBT & 0x7F);60			$BlockLength   = getid3_lib::BigEndian2Int(substr($BlockHeader, 1, 3));61			$BlockTypeText = self::metaBlockTypeLookup($BlockType);62 63			if (($BlockOffset + 4 + $BlockLength) > $info['avdataend']) {64				$this->warning('METADATA_BLOCK_HEADER.BLOCK_TYPE ('.$BlockTypeText.') at offset '.$BlockOffset.' extends beyond end of file');65				break;66			}67			if ($BlockLength < 1) {68				if ($BlockTypeText != 'reserved') {69					// probably supposed to be zero-length70					$this->warning('METADATA_BLOCK_HEADER.BLOCK_LENGTH ('.$BlockTypeText.') at offset '.$BlockOffset.' is zero bytes');71					continue;72				}73				$this->error('METADATA_BLOCK_HEADER.BLOCK_LENGTH ('.$BlockLength.') at offset '.$BlockOffset.' is invalid');74				break;75			}76 77			$info['flac'][$BlockTypeText]['raw'] = array();78			$BlockTypeText_raw = &$info['flac'][$BlockTypeText]['raw'];79 80			$BlockTypeText_raw['offset']          = $BlockOffset;81			$BlockTypeText_raw['last_meta_block'] = $LastBlockFlag;82			$BlockTypeText_raw['block_type']      = $BlockType;83			$BlockTypeText_raw['block_type_text'] = $BlockTypeText;84			$BlockTypeText_raw['block_length']    = $BlockLength;85			if ($BlockTypeText_raw['block_type'] != 0x06) { // do not read attachment data automatically86				$BlockTypeText_raw['block_data']  = $this->fread($BlockLength);87			}88 89			switch ($BlockTypeText) {90				case 'STREAMINFO':     // 0x0091					if (!$this->parseSTREAMINFO($BlockTypeText_raw['block_data'])) {92						return false;93					}94					break;95 96				case 'PADDING':        // 0x0197					unset($info['flac']['PADDING']); // ignore98					break;99 100				case 'APPLICATION':    // 0x02101					if (!$this->parseAPPLICATION($BlockTypeText_raw['block_data'])) {102						return false;103					}104					break;105 106				case 'SEEKTABLE':      // 0x03107					if (!$this->parseSEEKTABLE($BlockTypeText_raw['block_data'])) {108						return false;109					}110					break;111 112				case 'VORBIS_COMMENT': // 0x04113					if (!$this->parseVORBIS_COMMENT($BlockTypeText_raw['block_data'])) {114						return false;115					}116					break;117 118				case 'CUESHEET':       // 0x05119					if (!$this->parseCUESHEET($BlockTypeText_raw['block_data'])) {120						return false;121					}122					break;123 124				case 'PICTURE':        // 0x06125					if (!$this->parsePICTURE()) {126						return false;127					}128					break;129 130				default:131					$this->warning('Unhandled METADATA_BLOCK_HEADER.BLOCK_TYPE ('.$BlockType.') at offset '.$BlockOffset);