librevideojs/processor.php


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<?php

$yturllarge = "www.youtube.com";
$yturlshort = 'youtu.be/';

if (strpos($url, $yturlshort) !== false || strpos($url, $yturllarge) !== false ){
    $link = $url;
    $id = substr($link, -11); //Extract the youtube video ID
    $format = "video/webm"; //the MIME type of the video. e.g. video/webm, etc.
    parse_str(file_get_contents("https://youtube.com/get_video_info?video_id=".$id),$info); //decode the data
    $streams = $info['url_encoded_fmt_stream_map'];

    $streams = explode(',',$streams);

    foreach($streams as $stream){
        parse_str($stream,$data); //decode the stream
        if(stripos($data['type'],$format) !== false){ //We've found the right stream with the correct format
            $videoyt = $data['url']; //the video
        }
    }
}