download-normalized-youtube-ogg.php

<form method="post" action=''>
<input name="url" type="text" placeholder="Youtube link" />
<button action="submit">Submit</button>
</form>

<?php
if($_SERVER['REQUEST_METHOD'] == 'GET') {
exit;
}
echo '<pre>';
define('DOWNLOAD_FOLDER', "../Downloads");
define('MUSIC_FOLDER', "../Music");

function check_yt_file_exists($id) {
       
        $aFiles = glob(DOWNLOAD_FOLDER . '/*'.$id.'*');

        foreach($aFiles as $sFile) {
                if(substr($sFile, 13, 11) == 'normalized-') {
                        print_r([$id, $sFile, substr($sFile, 13, 11)]);
                        echo 'Already found!';
                        exit;
                }
        }
}
if(substr($_POST['url'], 0, 29) != 'https://www.youtube.com/watch') {
        echo "Only Youtube watch allowed\n";
        exit;
}
print("Downloading: " . $_POST['url'] . "\n");
$query = parse_url($_POST['url'], PHP_URL_QUERY);
parse_str($query, $params);
if(isset($params['v']))
        check_yt_file_exists($params['v']);
$youtube = "https://www.youtube.com/watch?" . http_build_query(['v' => $params['v']]);

$oJson = json_decode(trim(exec(
            "youtube-dl -x -o " . escapeshellarg(DOWNLOAD_FILDER . "/%(id)s.%(ext)s") 
            ." --print-json ".escapeshellarg($youtube)
     )));

check_yt_file_exists($oJson->id);
$aFiles = glob(DOWNLOAD_FILDER . '/*'.$oJson->id.'*');

$process = proc_open('ffmpeg-normalize -vf --format=ogg '. escapeshellarg($aFiles[0]), [
   0 => ["pipe", "r"],  // stdin
   1 => ["pipe", "w"],  // stdout
   2 => ["pipe", "w"],  // stderr
], $pipes, DOWNLOAD_FILDER, null);

if (is_resource($process)) {
        print stream_get_contents($pipes[1]);
        print stream_get_contents($pipes[2]);
        fclose($pipes[1]);
        fclose($pipes[2]);
} else {
        print('ffmpeg-normalize no resource');
}


$aNewFiles = glob('../Downloads/normalized-'.$oJson->id . '*.ogg');
echo "Copying file to `Music/$oJson->title.ogg`\n";
copy(DOWNLOAD_FOLDER . '/' .$aNewFiles[0], MUSIC_FOLDER . '/' . $oJson->title . ".ogg");

echo "Updating mpd database\n";
exec('mpc update');
echo "Add to queue\n";
exec('mpc add '. escapeshellarg($oJson->title . ".ogg"));