Converts CD-DA clone image by readom to CUE sheet music

subc.php

<?php
if(empty($argv[1]) || empty($argv[2])){
	exit();
}

function put_binary($data){
	global $fh_b;
	fwrite($fh_b, $data);
	return;
}

function put_cue($line){
	global $fh_c;
	fwrite($fh_c, "{$line}\n");
	return;
}

function get_timestr_from_numframe($frame){
	$time = array(0, 0, 0);

	$time[2] = $frame % 75;
	$frame = ($frame - $time[2]) / 75;
	$time[1] = $frame % 60;
	$time[0] = ($frame - $time[1]) / 60;

	return sprintf("%02d:%02d:%02d", $time[0], $time[1], $time[2]);
}



if(!($fh_s = fopen($argv[1], "r"))){
	exit("Could not open the source file. Exit.\n");
}

$cue_name = preg_replace("/\.wav$/i", "", $argv[2]) . ".cue";
if(file_exists($argv[2]) || file_exists($cue_name)){
	exit("Output file exists. Exit.\n");
}
if(!($fh_b = fopen($argv[2], "w")) || !($fh_c = fopen($cue_name, "w"))){
	exit("Could not open some of the output files. Exit.\n");
}



$datasize = filesize($argv[1]) * 0x930 / (0x930 + 0x60);
$chunksize = 4 + 8 + 16 + 8 + $datasize;

put_binary("RIFF" . pack("V", $chunksize) . "WAVE");
put_binary("fmt " . pack("VvvVVvv", 16, 1, 2, 44100, 16 * 44100 * 2 / 8, 16 * 2 / 8, 16));
put_binary("data" . pack("V", $datasize));

put_cue("FILE \"" . basename($argv[2]) . "\" WAVE");
put_cue("  TRACK 01 AUDIO");
put_cue("    INDEX 01 00:00:00");

$f = 0;
$t = 2;
$cue_tmp = array();
$flag = FALSE;
while($body = fread($fh_s, 0x930)){
	$head = bin2hex(substr(fread($fh_s, 0x60), 0, 6));

	put_binary($body);

	if($f === 0){
		$f += 1;
		continue;
	}

	if($flag === FALSE && $head === "808080808080"){
		$flag = TRUE;

		$cue_tmp[] = sprintf("  TRACK %02d AUDIO", $t);
		$cue_tmp[] = "    INDEX 00 " . get_timestr_from_numframe($f);
	}else if($flag === TRUE && $head !== "808080808080"){
		$flag = FALSE;

		$cue_tmp[] = "    INDEX 01 " . get_timestr_from_numframe($f);

		put_cue(implode("\n", $cue_tmp));
		$cue_tmp = array();

		$t += 1;
	}

	$f += 1;
}