getid3_lyrics3::getLyrics3Data

	 * @return bool
	 */
	public function getLyrics3Data($endoffset, $version, $length) {
		// http://www.volweb.cz/str/tags.htm

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

		if (!getid3_lib::intValueSupported($endoffset)) {
			$this->warning('Unable to check for Lyrics3 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB');
			return false;
		}

		$this->fseek($endoffset);
		if ($length <= 0) {
			return false;
		}
		$rawdata = $this->fread($length);

		$ParsedLyrics3 = array();

		$ParsedLyrics3['raw']['lyrics3version'] = $version;
		$ParsedLyrics3['raw']['lyrics3tagsize'] = $length;
		$ParsedLyrics3['tag_offset_start']      = $endoffset;
		$ParsedLyrics3['tag_offset_end']        = $endoffset + $length - 1;

		if (substr($rawdata, 0, 11) != 'LYRICSBEGIN') {
			if (strpos($rawdata, 'LYRICSBEGIN') !== false) {

				$this->warning('"LYRICSBEGIN" expected at '.$endoffset.' but actually found at '.($endoffset + strpos($rawdata, 'LYRICSBEGIN')).' - this is invalid for Lyrics3 v'.$version);
				$info['avdataend'] = $endoffset + strpos($rawdata, 'LYRICSBEGIN');
				$rawdata = substr($rawdata, strpos($rawdata, 'LYRICSBEGIN'));
				$length = strlen($rawdata);
				$ParsedLyrics3['tag_offset_start'] = $info['avdataend'];
				$ParsedLyrics3['raw']['lyrics3tagsize'] = $length;

			} else {

				$this->error('"LYRICSBEGIN" expected at '.$endoffset.' but found "'.substr($rawdata, 0, 11).'" instead');
				return false;

			}

		}

		switch ($version) {

			case 1:
				if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICSEND') {
					$ParsedLyrics3['raw']['LYR'] = trim(substr($rawdata, 11, strlen($rawdata) - 11 - 9));
					$this->Lyrics3LyricsTimestampParse($ParsedLyrics3);
				} else {
					$this->error('"LYRICSEND" expected at '.($this->ftell() - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead');
					return false;
				}
				break;

			case 2:
				if (substr($rawdata, strlen($rawdata) - 9, 9) == 'LYRICS200') {
					$ParsedLyrics3['raw']['unparsed'] = substr($rawdata, 11, strlen($rawdata) - 11 - 9 - 6); // LYRICSBEGIN + LYRICS200 + LSZ
					$rawdata = $ParsedLyrics3['raw']['unparsed'];
					while (strlen($rawdata) > 0) {
						$fieldname = substr($rawdata, 0, 3);
						$fieldsize = (int) substr($rawdata, 3, 5);
						$ParsedLyrics3['raw'][$fieldname] = substr($rawdata, 8, $fieldsize);
						$rawdata = substr($rawdata, 3 + 5 + $fieldsize);
					}

					if (isset($ParsedLyrics3['raw']['IND'])) {
						$i = 0;
						$flagnames = array('lyrics', 'timestamps', 'inhibitrandom');
						foreach ($flagnames as $flagname) {
							if (strlen($ParsedLyrics3['raw']['IND']) > $i++) {
								$ParsedLyrics3['flags'][$flagname] = $this->IntString2Bool(substr($ParsedLyrics3['raw']['IND'], $i, 1 - 1));
							}
						}
					}

					$fieldnametranslation = array('ETT'=>'title', 'EAR'=>'artist', 'EAL'=>'album', 'INF'=>'comment', 'AUT'=>'author');
					foreach ($fieldnametranslation as $key => $value) {
						if (isset($ParsedLyrics3['raw'][$key])) {
							$ParsedLyrics3['comments'][$value][] = trim($ParsedLyrics3['raw'][$key]);
						}
					}

					if (isset($ParsedLyrics3['raw']['IMG'])) {
						$imagestrings = explode("\r\n", $ParsedLyrics3['raw']['IMG']);
						foreach ($imagestrings as $key => $imagestring) {
							if (strpos($imagestring, '||') !== false) {
								$imagearray = explode('||', $imagestring);
								$ParsedLyrics3['images'][$key]['filename']     =                                (isset($imagearray[0]) ? $imagearray[0] : '');
								$ParsedLyrics3['images'][$key]['description']  =                                (isset($imagearray[1]) ? $imagearray[1] : '');
								$ParsedLyrics3['images'][$key]['timestamp']    = $this->Lyrics3Timestamp2Seconds(isset($imagearray[2]) ? $imagearray[2] : '');
							}
						}
					}
					if (isset($ParsedLyrics3['raw']['LYR'])) {
						$this->Lyrics3LyricsTimestampParse($ParsedLyrics3);
					}
				} else {
					$this->error('"LYRICS200" expected at '.($this->ftell() - 11 + $length - 9).' but found "'.substr($rawdata, strlen($rawdata) - 9, 9).'" instead');
					return false;
				}
				break;

			default:
				$this->error('Cannot process Lyrics3 version '.$version.' (only v1 and v2)');
				return false;
		}


		if (isset($info['id3v1']['tag_offset_start']) && ($info['id3v1']['tag_offset_start'] <= $ParsedLyrics3['tag_offset_end'])) {
			$this->warning('ID3v1 tag information ignored since it appears to be a false synch in Lyrics3 tag data');
			unset($info['id3v1']);
			foreach ($info['warning'] as $key => $value) {
				if ($value == 'Some ID3v1 fields do not use NULL characters for padding') {
					unset($info['warning'][$key]);
					sort($info['warning']);
					break;
				}
			}
		}

		$info['lyrics3'] = $ParsedLyrics3;

		return true;