Download Videos from Youtube in (Ruby || PHP)

youtube_dl.php

<?php
// Download Videos from Youtube in PHP
// By: Sheharyar Naseer

$id = 'RllJtOw0USI'; // just in case

if (isset($_GET["id"]))
	$id = $_GET["id"];

parse_str(file_get_contents('http://www.youtube.com/get_video_info?video_id='.$id), $video_data);

$streams = $video_data['url_encoded_fmt_stream_map'];
$streams = explode(',',$streams);
$counter = 1;

foreach ($streams as $streamdata) {
	printf("Stream %d:<br/>----------------<br/><br/>", $counter);
	
	parse_str($streamdata,$streamdata);

	foreach ($streamdata as $key => $value) {
		if ($key == "url") {
			$value = urldecode($value);
			printf("<strong>%s:</strong> <a href='%s'>video link</a><br/>", $key, $value);
		} else {
			printf("<strong>%s:</strong> %s<br/>", $key, $value);
		}
	}

	$counter = $counter+1;
	printf("<br/><br/>");
}

// start server and go to http://url/?id=video-id

?>

youtube_dl.rb

# Download Videos from Youtube in Ruby
# By: Sheharyar Naseer

require 'open-uri'
require 'cgi'

def tube(id)
    'http://youtube.com/get_video_info?video_id=' + id
end

def get_video_data(id)
    CGI.parse open(tube(id)).read
end

def get_video_streams(id)
    streams = get_video_data(id)['url_encoded_fmt_stream_map'].first.split(',')
    streams.map do |s|
        x = CGI.parse s
        x.each do |k,v|
            if k == 'type'
                x[k] = v.first.split('; ')
            else
                x[k] = v.first
            end
        end
    end
end


# Get Videos

video_id = "ekz-FY_MDGA" 
streams  = get_video_streams(video_id)

puts "### Total #{streams.count} streams available:\n\n"
streams.each_with_index do |s,i|
    puts "Stream #{i+1}",
         "-------------",
         "Quality: #{s['quality']}",
         "Type: #{s['type'].first}",
         "URL:  #{s['url'][0..70]}......\n\n"
end

puts "(Modify the code to get full urls)"

YoutubeDownloader.md

Youtube Downloaders

Download Youtube Videos using Ruby or PHP

Just copy the appropriate script, provide the video_id and run. It will list download links for different qualities and streams.

:P