private static YoutubeModel LoadModel(string videoUrl)
{
var videoId = videoUrl.Replace("https://youtube.com/watch?v=", "");
var url = $"https://www.youtube.com/get_video_info?video_id={videoId}&eurl=https://youtube.googleapis.com/v/{videoId}";
return(YoutubeModel.FromJson(HttpHelper.UrlDecode(HttpHelper.ParseQueryString(HttpHelper.DownloadString(url))["player_response"])));
}
private static YoutubeModel LoadModel(string videoUrl)
{
var videoId = videoUrl.Replace("https://youtube.com/watch?v=", "");
var url = $"https://www.youtube.com/watch?v={videoId}&gl=US&hl=en&has_verified=1&bpctr=9999999999";
var pageSource = HttpHelper.DownloadString(url);
var player_response = string.Empty;
if (Regex.IsMatch(pageSource, @"[""\']status[""\']\s*:\s*[""\']LOGIN_REQUIRED"))
{
url = $"https://www.youtube.com/get_video_info?video_id={videoId}&eurl=https://youtube.googleapis.com/v/{videoId}";
pageSource = HttpHelper.DownloadString(url);
player_response = HttpHelper.ParseQueryString(pageSource)["player_response"];
player_response = HttpHelper.UrlDecode(player_response);
return(YoutubeModel.FromJson(player_response));
}
var dataRegex = new Regex(@"ytplayer\.config\s*=\s*(\{.+?\});", RegexOptions.Multiline);
var dataMatch = dataRegex.Match(pageSource);
if (dataMatch.Success)
{
string extractedJson = dataMatch.Result("$1");
if (!extractedJson.Contains("raw_player_response:ytInitialPlayerResponse")) //https://www.youtube.com/watch?v=9Y7TRMISkGE
{
player_response = JObject.Parse(extractedJson)["args"]["player_response"].ToString();
return(YoutubeModel.FromJson(player_response));
}
}
dataRegex = new Regex(@"ytInitialPlayerResponse\s*=\s*({.+?})\s*;\s*(?:var\s+meta|</script|\n)", RegexOptions.Multiline);
dataMatch = dataRegex.Match(pageSource);
if (dataMatch.Success)
{
player_response = dataMatch.Result("$1");
return(YoutubeModel.FromJson(player_response));
}
dataRegex = new Regex(@"ytInitialPlayerResponse\s*=\s*({.+?})\s*;", RegexOptions.Multiline);
dataMatch = dataRegex.Match(pageSource);
if (dataMatch.Success)
{
player_response = dataMatch.Result("$1");
return(YoutubeModel.FromJson(player_response));
}
ThrowYoutubeParseException(new VideoNotAvailableException("Unable to extract video data"), videoUrl);
return(null);
}
public static string ToJson(this YoutubeModel self) => JsonConvert.SerializeObject(self, Converter.Settings);
private static string GetVideoTitle(YoutubeModel model)
{
return(model.VideoDetails.Title.Replace("+", " "));
}
private static IEnumerable <VideoInfo> GetVideoInfos(YoutubeModel model)
{
var streamingFormats = GetStreamMap(model);
if (streamingFormats == null)
{
streamingFormats = new List <Format>();
}
var adaptiveStream = GetAdaptiveStreamMap(model);
if (adaptiveStream != null)
{
streamingFormats.AddRange(adaptiveStream);
}
foreach (var fmt in streamingFormats)
{
if (!fmt.Itag.HasValue)
{
continue;
}
var itag = (int)fmt.Itag.Value;
VideoInfo videoInfo = VideoInfo.Defaults.SingleOrDefault(info => info.FormatCode == itag);
videoInfo = videoInfo ?? new VideoInfo(itag);
if (!string.IsNullOrEmpty(fmt.Url))
{
videoInfo.DownloadUrl = HttpHelper.UrlDecode(HttpHelper.UrlDecode(fmt.Url));
}
else if (!string.IsNullOrEmpty(fmt.Cipher) || !string.IsNullOrEmpty(fmt.SignatureCipher))
{
IDictionary <string, string> cipher = null;
if (!string.IsNullOrEmpty(fmt.Cipher))
{
cipher = HttpHelper.ParseQueryString(fmt.Cipher);
}
if (!string.IsNullOrEmpty(fmt.SignatureCipher))
{
cipher = HttpHelper.ParseQueryString(fmt.SignatureCipher);
}
if (!cipher.ContainsKey("url"))
{
continue;
}
if (!cipher.ContainsKey("s"))
{
continue;
}
var url = cipher["url"];
var sig = cipher["s"];
url = HttpHelper.UrlDecode(url);
url = HttpHelper.UrlDecode(url);
sig = HttpHelper.UrlDecode(sig);
sig = HttpHelper.UrlDecode(sig);
url = url.Replace("&s=", "&sig=");
videoInfo.DownloadUrl = HttpHelper.ReplaceQueryStringParameter(url, SignatureQuery, sig);
videoInfo.RequiresDecryption = true;
}
else
{
continue;
}
if (!HttpHelper.ParseQueryString(videoInfo.DownloadUrl).ContainsKey(RateBypassFlag))
{
videoInfo.DownloadUrl = string.Concat(videoInfo.DownloadUrl, string.Format("&{0}={1}", "ratebypass", "yes"));
}
if (fmt.AudioSampleRate.HasValue)
{
videoInfo.AudioBitrate = (int)fmt.AudioSampleRate.Value;
}
if (fmt.ContentLength.HasValue)
{
videoInfo.FileSize = (int)fmt.ContentLength.Value;
}
if (!string.IsNullOrEmpty(fmt.QualityLabel))
{
videoInfo.FormatNote = fmt.QualityLabel;
}
else
{
videoInfo.FormatNote = fmt.Quality;
}
if (fmt.Fps.HasValue)
{
videoInfo.FPS = (int)fmt.Fps.Value;
}
if (fmt.Height.HasValue)
{
videoInfo.Height = (int)fmt.Height.Value;
}
if (fmt.Width.HasValue)
{
videoInfo.Width = (int)fmt.Width.Value;
}
// bitrate for itag 43 is always 2147483647
if (itag != 43)
{
if (fmt.AverageBitrate.HasValue)
{
videoInfo.AverageBitrate = fmt.AverageBitrate.Value / 1000f;
}
else if (fmt.Bitrate.HasValue)
{
videoInfo.AverageBitrate = fmt.Bitrate.Value / 1000f;
}
}
if (fmt.Height.HasValue)
{
videoInfo.Height = (int)fmt.Height.Value;
}
if (fmt.Width.HasValue)
{
videoInfo.Width = (int)fmt.Width.Value;
}
yield return(videoInfo);
}
}
private static List <Format> GetStreamMap(YoutubeModel model)
{
return(model.StreamingData?.Formats.ToList());
}
private static List <Format> GetAdaptiveStreamMap(YoutubeModel model)
{
return(model.StreamingData.AdaptiveFormats.ToList());
}