cod4ff extract

cod4ff.php

<?php
    const WAV_NEEDLE = ".wav";
    const WAV_PACKID = "feffffff";
    const DEFAULTPATH = "sound";
    
    $ffdump = file_get_contents($argv[1]);
    
    $lastpos = 0;
    $wav_pathid = hex2bin("FFFFFF");
    $wavs = array();
    $c = 0;
    
    while(($lastpos = strpos($ffdump, WAV_NEEDLE, $lastpos)) !== FALSE) {
        $wav_start = strrpos($ffdump, $wav_pathid, -(strlen($ffdump) - ($lastpos - 1)));
        
        $wav_id = bin2hex(substr($ffdump, $wav_start-1, 4));
        $wav_name = substr($ffdump, $wav_start+3, ($lastpos+4)-($wav_start+3));
        
        if($wav_id == WAV_PACKID) {
            $wav_header = substr($ffdump, $wav_start-37, 36);
            $wav_length = hexdec(bin2hex(strrev(substr($wav_header, 8, 4))));
            $wav_sample = hexdec(bin2hex(strrev(substr($wav_header, 12, 4))));
            $wav_chanel = hexdec(bin2hex(strrev(substr($wav_header, 20, 4))));
            
            $wavs[$c] = array("name" => $wav_name, "start" => $lastpos+5, "length" => $wav_length, "sample" => $wav_sample, "channels" => $wav_chanel);
            $c++;
        }
        
        $lastpos = $lastpos + strlen(WAV_NEEDLE);
    }
    
    if(!file_exists(DEFAULTPATH)) {
        mkdir(DEFAULTPATH);
    }
    
    foreach($wavs as $c => $wav) {
        $explodepath = explode("/", $wav["name"]);
        $pathsize = count($explodepath);
        $oldpath = DEFAULTPATH."/";
        
        for($i = 1; $i <= $pathsize; $i++) {
            $fullpath = $oldpath.$explodepath[$i-1];
            
            if($i != $pathsize) {
                if(!file_exists($fullpath)) {
                    mkdir($fullpath);
                }
                $oldpath = $fullpath."/";
            } else {
                file_put_contents($fullpath, substr($ffdump, $wav["start"], $wav["length"]));
                $ffmpeg = "ffmpeg -y -f s16le -ac ".$wav["channels"]." -ar ".$wav["sample"]." -i $fullpath ".substr($fullpath, 0, -4)."_PCM.wav\n";
                echo $ffmpeg;
            }
        }
    }
?>

Works only with unzipped dumps. Use like this:

 for %I in ("*.dump") do php -f main.php "%I" >>convertmorewavs.bat

Works in conjunction with the following script that parses the ffmpeg commands for dupes:

https://gist.github.com/withmorten/06f9d65ec138808edeeb956501d9ec0a