public static List<YouTubeVideoQuality> GetYouTubeVideoUrls(params string[] VideoUrls)
{
List<YouTubeVideoQuality> urls = new List<YouTubeVideoQuality>();
foreach (var VideoUrl in VideoUrls)
{
string html = Helper.DownloadWebPage(VideoUrl);
string title = GetTitle(html);
foreach (var videoLink in ExtractUrls(html))
{
YouTubeVideoQuality q = new YouTubeVideoQuality();
q.VideoUrl = VideoUrl;
q.VideoTitle = title;
q.DownloadUrl = videoLink + "&title=" + title;
if (!getSize(q)) continue;
//!debug sometimes strange error here!, unhandled exeption on regex
q.Length = long.Parse(Regex.Match(html, "\"length_seconds\":(.+?),", RegexOptions.Singleline).Groups[1].ToString());
bool IsWide = IsWideScreen(html);
if ( (getQuality(q, IsWide)) && 1==1)
urls.Add(q);
}
}
return urls;
}
private static bool getQuality(YouTubeVideoQuality q, Boolean _Wide)
{
int iTagValue;
string itag = Regex.Match(q.DownloadUrl, @"itag=([1-9]?[0-9]?[0-9])", RegexOptions.Singleline).Groups[1].ToString();
if (itag != "")
{
if (int.TryParse(itag, out iTagValue) == false)
iTagValue = 0;
switch (iTagValue)
{
/*
case 5: q.SetQuality("flv", new Size(320, (_Wide ? 180 : 240))); break;
case 6: q.SetQuality("flv", new Size(480, (_Wide ? 270 : 360))); break;
case 17: q.SetQuality("3gp", new Size(176, (_Wide ? 99 : 144))); break;
case 34: q.SetQuality("flv", new Size(640, (_Wide ? 360 : 480))); break;
case 35: q.SetQuality("flv", new Size(854, (_Wide ? 480 : 640))); break;
case 36: q.SetQuality("3gp", new Size(320, (_Wide ? 180 : 240))); break;
case 43: q.SetQuality("webm", new Size(640, (_Wide ? 360 : 480))); break;
case 44: q.SetQuality("webm", new Size(854, (_Wide ? 480 : 640))); break;
case 45: q.SetQuality("webm", new Size(1280, (_Wide ? 720 : 960))); break;
case 46: q.SetQuality("webm", new Size(1920, (_Wide ? 1080 : 1440))); break;
case 100: q.SetQuality("3D.webm", new Size(640, (_Wide ? 360 : 480))); break; // 3D
case 101: q.SetQuality("3D.webm", new Size(640, (_Wide ? 360 : 480))); break; // 3D
case 102: q.SetQuality("3D.webm", new Size(1280, (_Wide ? 720 : 960))); break; // 3D
*/
// /*
case 5: q.SetQuality("flv", new Size(320, (_Wide ? 180 : 240))); break;
case 6: return false;
case 17: q.SetQuality("3gp", new Size(176, (_Wide ? 99 : 144))); break;
case 34: return false;
case 35: return false;
case 36: q.SetQuality("3gp", new Size(320, (_Wide ? 180 : 240))); break;
case 43: return false;
case 44: return false;
case 45: return false;
case 46: return false;
case 100: return false;
case 101: return false;
case 102: return false;
// */
/*
* case 5: return false;
case 6: return false;
case 17: return false;
case 34: return false;
case 35: return false;
case 36: return false;
case 43: return false;
case 44: return false;
case 45: return false;
case 46: return false;
case 100: return false;
case 101: return false;
case 102: return false;
*/
case 18: q.SetQuality("mp4", new Size(640, (_Wide ? 360 : 480))); break;
case 22: q.SetQuality("mp4", new Size(1280, (_Wide ? 720 : 960))); break;
case 37: q.SetQuality("mp4", new Size(1920, (_Wide ? 1080 : 1440))); break;
case 38: q.SetQuality("mp4", new Size(2048, (_Wide ? 1152 : 1536))); break;
case 82: q.SetQuality("3D.mp4", new Size(480, (_Wide ? 270 : 360))); break; // 3D
case 83: q.SetQuality("3D.mp4", new Size(640, (_Wide ? 360 : 480))); break; // 3D
case 84: q.SetQuality("3D.mp4", new Size(1280, (_Wide ? 720 : 960))); break; // 3D
case 85: q.SetQuality("3D.mp4", new Size(1920, (_Wide ? 1080 : 1440))); break; // 3D
case 120: q.SetQuality("live.flv", new Size(1280, (_Wide ? 720 : 960))); break; // Live-streaming - should be ignored?
default: q.SetQuality("itag-" + itag, new Size(0, 0)); break; // unknown or parse error
}
return true;
} return false;
}
private static bool getSize(YouTubeVideoQuality q)
{
try
{
HttpWebRequest fileInfoRequest = (HttpWebRequest)HttpWebRequest.Create(q.DownloadUrl);
HttpWebResponse fileInfoResponse = (HttpWebResponse)fileInfoRequest.GetResponse();
long bytesLength = fileInfoResponse.ContentLength;
fileInfoRequest.Abort();
if (bytesLength != -1)
{
q.SetSize(bytesLength);
return true;
}
else return false;
}
catch (Exception)
{
return false;
}
}