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;
}
q.Length = long.Parse(Regex.Match(html, "\"length_seconds\":(.+?),", RegexOptions.Singleline).Groups[1].ToString());
bool IsWide = IsWideScreen(html);
if (getQuality(q, IsWide))
{
urls.Add(q);
}
}
}
return(urls);
}
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;
q.Length = long.Parse(Regex.Match(html, "\"length_seconds\":(.+?),", RegexOptions.Singleline).Groups[1].ToString());
bool IsWide = IsWideScreen(html);
if ( getQuality(q, IsWide) )
urls.Add(q);
}
}
return urls;
}
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);
}
}
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 18: q.SetQuality("mp4", new Size(640, (_Wide ? 360 : 480))); break;
case 22: q.SetQuality("mp4", new Size(1280, (_Wide ? 720 : 960))); 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 37: q.SetQuality("mp4", new Size(1920, (_Wide ? 1080 : 1440))); break;
case 38: q.SetQuality("mp4", new Size(2048, (_Wide ? 1152 : 1536))); 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 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 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 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 double GetVideoDistance(YouTubeVideoQuality video)
{
double f1 = 0.0;
if ( videoWidth > 0 )
f1 = Math.Pow(Math.Abs(video.Dimension.Width - videoWidth), 2);
double f2 = 0.0;
if ( videoSize > 0 )
f2 = Math.Pow(Math.Abs(video.VideoSize - videoSize), 2);
return Math.Sqrt(f1 + f2);
}
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 18: q.SetQuality("mp4", new Size(640, (_Wide ? 360 : 480))); break;
case 22: q.SetQuality("mp4", new Size(1280, (_Wide ? 720 : 960))); 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 37: q.SetQuality("mp4", new Size(1920, (_Wide ? 1080 : 1440))); break;
case 38: q.SetQuality("mp4", new Size(2048, (_Wide ? 1152 : 1536))); 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 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 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 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;
}
}
