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POhow to get a video download link from YouTube?
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  1. POhow to get a video download link from YouTube?
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    copied!<p>I want to download videos from YouTube. I want to get </p> <pre><code>http://www.youtube.com/watch?v=Fwa_GvIBH38&amp;feature=feedrec_grec_index </code></pre> <p>To</p> <pre><code>http://o-o.preferred.btcl-dac1.v6.lscache4.c.youtube.com/videoplayback?sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Csource%2Calgorithm%2Cburst%2Cfactor%2Ccp&amp;fexp=914016%2C904443&amp;algorithm=throttle-factor&amp;itag=34&amp;ip=58.0.0.0&amp;burst=40&amp;sver=3&amp;signature=82D07EBDBED8BC79D08AEE3F90B1473E44D4065E.88AB21BBB9E2D252B65FE6C419CD7867CDE8815C&amp;source=youtube&amp;expire=1322694000&amp;key=yt1&amp;ipbits=8&amp;factor=1.25&amp;cp=U0hRR1ZUUl9FSkNOMV9OTlZBOmRXLUt2VHYwWVY2&amp;id=1706bf1af2011f7f&amp;ptchn=collegehumor&amp;ptk=collegehumor </code></pre> <p>I got above link from IDM.</p> <p>I got two methods from a web site to get above link.</p> <pre><code> //this methods get's the download link for youtube videos in mp4 format. public string url(string url) { string html = getYoutubeHtml(url); HtmlAgilityPack.HtmlDocument hDoc = new HtmlDocument(); hDoc.LoadHtml(html); HtmlNode node = hDoc.GetElementbyId("movie_player"); string flashvars = node.Attributes[5].Value; string _url = Uri.UnescapeDataString(flashvars); string[] w = _url.Split('&amp;'); string link = ""; bool foundUrlMap = false; for (int i = 0; i &lt; w.Length; i++) { if (w[i].Contains("fmt_url_map=")) { foundUrlMap = true; link += w[i].Split('|')[1]; } if (foundUrlMap) { //add the parameters to the url link += "&amp;" + w[i]; if (w[i].Contains("id=")) { link = link.Split(',')[0]; //change the array index for different formats break; } } } link = link.Split('|')[1] + "&amp;title=out"; System.Windows.MessageBox.Show(link); return link; } //this method downloads the html code from the youtube page. private string getYoutubeHtml(string url) { string html = ""; WebRequest request = WebRequest.Create(url); WebResponse response = request.GetResponse(); TextReader reader = new StreamReader(response.GetResponseStream()); string line = ""; while ((line = reader.ReadLine()) != null) { html += line; } return html; } </code></pre> <p>It's not work.ing </p> <p>It does not find <code>fmt_url_map=</code>inside of <b>w</b> </p> <p>So now what can I do?</p>
 

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