313 lines
8.4 KiB
PHP
313 lines
8.4 KiB
PHP
<?php
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/////////////////////////////////////////////////////////////////
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/// getID3() by James Heinrich <info@getid3.org> //
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// available at http://getid3.sourceforge.net //
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// or http://www.getid3.org //
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// also https://github.com/JamesHeinrich/getID3 //
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/////////////////////////////////////////////////////////////////
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// See readme.txt for more details //
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/////////////////////////////////////////////////////////////////
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// //
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// module.misc.cue.php //
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// module for analyzing CUEsheet files //
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// dependencies: NONE //
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// //
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/////////////////////////////////////////////////////////////////
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// //
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// Module originally written [2009-Mar-25] by //
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// Nigel Barnes <ngbarnesØhotmail*com> //
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// Minor reformatting and similar small changes to integrate //
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// into getID3 by James Heinrich <info@getid3.org> //
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// ///
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/////////////////////////////////////////////////////////////////
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/*
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* CueSheet parser by Nigel Barnes.
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*
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* This is a PHP conversion of CueSharp 0.5 by Wyatt O'Day (wyday.com/cuesharp)
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*/
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/**
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* A CueSheet class used to open and parse cuesheets.
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*
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*/
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class getid3_cue extends getid3_handler
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{
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public $cuesheet = array();
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public function Analyze() {
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$info = &$this->getid3->info;
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$info['fileformat'] = 'cue';
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$this->readCueSheetFilename($info['filenamepath']);
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$info['cue'] = $this->cuesheet;
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return true;
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}
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public function readCueSheetFilename($filename)
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{
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$filedata = file_get_contents($filename);
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return $this->readCueSheet($filedata);
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}
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/**
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* Parses a cue sheet file.
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*
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* @param string $filename - The filename for the cue sheet to open.
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*/
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public function readCueSheet(&$filedata)
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{
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$cue_lines = array();
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foreach (explode("\n", str_replace("\r", null, $filedata)) as $line)
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{
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if ( (strlen($line) > 0) && ($line[0] != '#'))
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{
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$cue_lines[] = trim($line);
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}
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}
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$this->parseCueSheet($cue_lines);
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return $this->cuesheet;
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}
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/**
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* Parses the cue sheet array.
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*
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* @param array $file - The cuesheet as an array of each line.
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*/
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public function parseCueSheet($file)
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{
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//-1 means still global, all others are track specific
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$track_on = -1;
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for ($i=0; $i < count($file); $i++)
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{
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list($key) = explode(' ', strtolower($file[$i]), 2);
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switch ($key)
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{
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case 'catalog':
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case 'cdtextfile':
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case 'isrc':
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case 'performer':
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case 'songwriter':
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case 'title':
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$this->parseString($file[$i], $track_on);
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break;
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case 'file':
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$currentFile = $this->parseFile($file[$i]);
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break;
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case 'flags':
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$this->parseFlags($file[$i], $track_on);
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break;
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case 'index':
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case 'postgap':
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case 'pregap':
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$this->parseIndex($file[$i], $track_on);
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break;
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case 'rem':
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$this->parseComment($file[$i], $track_on);
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break;
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case 'track':
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$track_on++;
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$this->parseTrack($file[$i], $track_on);
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if (isset($currentFile)) // if there's a file
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{
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$this->cuesheet['tracks'][$track_on]['datafile'] = $currentFile;
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}
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break;
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default:
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//save discarded junk and place string[] with track it was found in
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$this->parseGarbage($file[$i], $track_on);
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break;
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}
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}
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}
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/**
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* Parses the REM command.
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*
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* @param string $line - The line in the cue file that contains the TRACK command.
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* @param integer $track_on - The track currently processing.
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*/
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public function parseComment($line, $track_on)
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{
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$explodedline = explode(' ', $line, 3);
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$comment_REM = (isset($explodedline[0]) ? $explodedline[0] : '');
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$comment_type = (isset($explodedline[1]) ? $explodedline[1] : '');
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$comment_data = (isset($explodedline[2]) ? $explodedline[2] : '');
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if (($comment_REM == 'REM') && $comment_type) {
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$comment_type = strtolower($comment_type);
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$commment_data = trim($comment_data, ' "');
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if ($track_on != -1) {
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$this->cuesheet['tracks'][$track_on]['comments'][$comment_type][] = $comment_data;
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} else {
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$this->cuesheet['comments'][$comment_type][] = $comment_data;
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}
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}
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}
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/**
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* Parses the FILE command.
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*
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* @param string $line - The line in the cue file that contains the FILE command.
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* @return array - Array of FILENAME and TYPE of file..
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*/
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public function parseFile($line)
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{
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$line = substr($line, strpos($line, ' ') + 1);
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$type = strtolower(substr($line, strrpos($line, ' ')));
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//remove type
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$line = substr($line, 0, strrpos($line, ' ') - 1);
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//if quotes around it, remove them.
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$line = trim($line, '"');
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return array('filename'=>$line, 'type'=>$type);
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}
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/**
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* Parses the FLAG command.
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*
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* @param string $line - The line in the cue file that contains the TRACK command.
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* @param integer $track_on - The track currently processing.
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*/
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public function parseFlags($line, $track_on)
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{
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if ($track_on != -1)
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{
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foreach (explode(' ', strtolower($line)) as $type)
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{
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switch ($type)
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{
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case 'flags':
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// first entry in this line
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$this->cuesheet['tracks'][$track_on]['flags'] = array(
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'4ch' => false,
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'data' => false,
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'dcp' => false,
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'pre' => false,
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'scms' => false,
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);
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break;
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case 'data':
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case 'dcp':
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case '4ch':
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case 'pre':
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case 'scms':
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$this->cuesheet['tracks'][$track_on]['flags'][$type] = true;
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break;
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default:
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break;
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}
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}
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}
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}
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/**
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* Collect any unidentified data.
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*
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* @param string $line - The line in the cue file that contains the TRACK command.
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* @param integer $track_on - The track currently processing.
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*/
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public function parseGarbage($line, $track_on)
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{
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if ( strlen($line) > 0 )
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{
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if ($track_on == -1)
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{
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$this->cuesheet['garbage'][] = $line;
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}
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else
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{
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$this->cuesheet['tracks'][$track_on]['garbage'][] = $line;
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}
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}
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}
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/**
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* Parses the INDEX command of a TRACK.
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*
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* @param string $line - The line in the cue file that contains the TRACK command.
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* @param integer $track_on - The track currently processing.
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*/
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public function parseIndex($line, $track_on)
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{
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$type = strtolower(substr($line, 0, strpos($line, ' ')));
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$line = substr($line, strpos($line, ' ') + 1);
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if ($type == 'index')
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{
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//read the index number
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$number = intval(substr($line, 0, strpos($line, ' ')));
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$line = substr($line, strpos($line, ' ') + 1);
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}
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//extract the minutes, seconds, and frames
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$explodedline = explode(':', $line);
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$minutes = (isset($explodedline[0]) ? $explodedline[0] : '');
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$seconds = (isset($explodedline[1]) ? $explodedline[1] : '');
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$frames = (isset($explodedline[2]) ? $explodedline[2] : '');
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switch ($type) {
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case 'index':
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$this->cuesheet['tracks'][$track_on][$type][$number] = array('minutes'=>intval($minutes), 'seconds'=>intval($seconds), 'frames'=>intval($frames));
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break;
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case 'pregap':
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case 'postgap':
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$this->cuesheet['tracks'][$track_on][$type] = array('minutes'=>intval($minutes), 'seconds'=>intval($seconds), 'frames'=>intval($frames));
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break;
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}
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}
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public function parseString($line, $track_on)
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{
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$category = strtolower(substr($line, 0, strpos($line, ' ')));
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$line = substr($line, strpos($line, ' ') + 1);
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//get rid of the quotes
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$line = trim($line, '"');
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switch ($category)
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{
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case 'catalog':
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case 'cdtextfile':
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case 'isrc':
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case 'performer':
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case 'songwriter':
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case 'title':
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if ($track_on == -1)
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{
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$this->cuesheet[$category] = $line;
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}
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else
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{
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$this->cuesheet['tracks'][$track_on][$category] = $line;
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}
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break;
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default:
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break;
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}
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}
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/**
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* Parses the TRACK command.
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*
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* @param string $line - The line in the cue file that contains the TRACK command.
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* @param integer $track_on - The track currently processing.
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*/
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public function parseTrack($line, $track_on)
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{
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$line = substr($line, strpos($line, ' ') + 1);
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$track = ltrim(substr($line, 0, strpos($line, ' ')), '0');
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//find the data type.
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$datatype = strtolower(substr($line, strpos($line, ' ') + 1));
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$this->cuesheet['tracks'][$track_on] = array('track_number'=>$track, 'datatype'=>$datatype);
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}
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}
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