public static List <YouTubeVideoQuality> GetYouTubeVideoUrls(string VideoUrl)
{
var list = new List <YouTubeVideoQuality>();
var id = YouTubeDownloader.GetVideoIDFromUrl(VideoUrl);
var infoUrl = string.Format("http://www.youtube.com/get_video_info?&video_id={0}&el=detailpage&ps=default&eurl=&gl=US&hl=en", id);
var infoText = new WebClient().DownloadString(infoUrl);
var infoValues = HttpUtility.ParseQueryString(infoText);
var title = infoValues["title"];
var videoDuration = infoValues["length_seconds"];
var videos = infoValues["url_encoded_fmt_stream_map"].Split(',');
foreach (var item in videos)
{
try
{
var data = HttpUtility.ParseQueryString(item);
var server = Uri.UnescapeDataString(data["fallback_host"]);
var signature = data["sig"] ?? data["signature"];
var url = Uri.UnescapeDataString(data["url"]) + "&fallback_host=" + server;
if (!string.IsNullOrEmpty(signature))
{
url += "&signature=" + signature;
}
var size = getSize(url);
var videoItem = new YouTubeVideoQuality();
videoItem.DownloadUrl = url;
videoItem.VideoSize = size;
videoItem.VideoTitle = title;
var tagInfo = new ITagInfo(Uri.UnescapeDataString(data["itag"]));
videoItem.Dimension = tagInfo.VideoDimensions;
videoItem.Extention = tagInfo.VideoExtentions;
videoItem.Length = long.Parse(videoDuration);
list.Add(videoItem);
}
catch { }
}
return(list);
}
//
void worker_DoWork(object o, DoWorkEventArgs e)
{
e.Result = YouTubeDownloader.GetYouTubeVideoUrls(e.Argument.ToString());
}