private static bool getQuality(VideoQuality q)
{
if (q.DownloadUrl.Contains("itag=5"))
{
q.SetQuality("flv", new Size(320, 240));
}
else if (q.DownloadUrl.Contains("itag=6"))
{
q.SetQuality("flv", new Size(480, 360));
}
else if (q.DownloadUrl.Contains("itag=17"))
{
q.SetQuality("mp4", new Size(320, 144));
}
else if (q.DownloadUrl.Contains("itag=18"))
{
q.SetQuality("mp4", new Size(480, 360));
}
else if (q.DownloadUrl.Contains("itag=22"))
{
q.SetQuality("mp4", new Size(1280, 720));
}
else if (q.DownloadUrl.Contains("itag=34"))
{
q.SetQuality("flv", new Size(400, 226));
}
else if (q.DownloadUrl.Contains("itag=35"))
{
q.SetQuality("flv", new Size(640, 380));
}
else if (q.DownloadUrl.Contains("itag=36"))
{
q.SetQuality("mp4", new Size(420, 240));
}
else if (q.DownloadUrl.Contains("itag=37"))
{
q.SetQuality("mp4", new Size(1920, 1280));
}
else if (q.DownloadUrl.Contains("itag=38"))
{
q.SetQuality("mp4", new Size(4096, 72304));
}
else if (q.DownloadUrl.Contains("itag=133"))
{
q.SetQuality("webm", new Size(426, 240));
}
else if (q.DownloadUrl.Contains("itag=134"))
{
q.SetQuality("webm", new Size(640, 360));
}
else if (q.DownloadUrl.Contains("itag=135"))
{
q.SetQuality("webm", new Size(854, 480));
}
else if (q.DownloadUrl.Contains("itag=136"))
{
q.SetQuality("webm", new Size(1280, 720));
}
else if (q.DownloadUrl.Contains("itag=137"))
{
q.SetQuality("webm", new Size(1920, 226));
}
else if (q.DownloadUrl.Contains("itag=242"))
{
q.SetQuality("mp4", new Size(426, 240));
}
else if (q.DownloadUrl.Contains("itag=243"))
{
q.SetQuality("mp4", new Size(640, 360));
}
else if (q.DownloadUrl.Contains("itag=244"))
{
q.SetQuality("mp4", new Size(854, 480));
}
else if (q.DownloadUrl.Contains("itag=247"))
{
q.SetQuality("mp4", new Size(1280, 720));
}
else if (q.DownloadUrl.Contains("itag=248"))
{
q.SetQuality("mp4", new Size(1920, 1080));
}
else
{
return(false);
}
return(true);
}
public async static Task <List <VideoQuality> > GetYouTubeVideoUrls(params string[] videosUrls)
{
List <VideoQuality> urls = new List <VideoQuality>();
foreach (string videoUrl in videosUrls)
{
string videoId = Helper.GetVideoIDFromUrl(videoUrl);
string input = "";
input = await Helper.DownloadWebPage("http://www.youtube.com/watch?v=" + videoId);
string expression = Helper.GetTxtBtwn(input, "fmt_stream_map\": \"",
"\"", 0).Replace(@"\/", "/").Replace(@"\u0026", "&");
if (expression == "")
{
input = await Helper.DownloadWebPage("http://www.youtube.com/get_video_info?video_id=" +
videoId + "&asv=3&el=detailpage&hl=en_US");
expression = WebUtility.UrlDecode(Helper.GetTxtBtwn(input, "fmt_stream_map=", "&", 0));
}
string str14 = Helper.GetTxtBtwn(input, "'VIDEO_TITLE': '", "'", 0);
if (str14 == "")
{
str14 = Helper.GetTxtBtwn(input, "\"title\" content=\"", "\"", 0);
}
if (str14 == "")
{
str14 = Helper.GetTxtBtwn(input, "&title=", "&", 0);
}
str14 = str14.Replace(@"\", "").Replace("'", "'").Replace(
"\"", """).Replace("<", "<").Replace(
">", ">").Replace("+", " ");
if (!expression.Contains("url"))
{
continue;
}
string[] fmtUrls = expression.Split(',');
foreach (string str21 in fmtUrls)
{
//string itag = "";
string url = "";
string[] strArray2 = str21.Split('&');
foreach (string str22 in strArray2)
{
if (str22.StartsWith("url"))
{
url = str22.Substring(4);
}
}
VideoQuality q = new VideoQuality();
q.VideoUrl = videoUrl;
q.VideoTitle = Helper.UrlDecode(str14);
q.DownloadUrl = WebUtility.UrlDecode(url) + "&title=" + str14;
if (getQuality(q))
{
urls.Add(q);
}
}
// foreach (string str21 in Helper.Split(expression, "="))
// {
// string[] strArray2 = Helper.Split(str21, "&qual");
// VideoQuality q = new VideoQuality();
// q.VideoUrl = videoUrl;
// q.VideoTitle = Helper.UrlDecode(str14);
// q.DownloadUrl = WebUtility.UrlDecode(strArray2[0]) + "&title=" + str14;
// if (getQuality(q))
// urls.Add(q);
// }
}
return(urls);
}