public static string ChooseResolutionFromM3U8(string M3U8Url)
{
string M3U8Content = new WebClient().DownloadString(M3U8Url);
MatchCollection Streams = Regex.Matches(M3U8Content, "(#EXT-X-STREAM.*)\\s(.*)");
List <(int resolution, int bandwidth, string url)> Resolutions = new List <(int, int, string)>();
foreach (Match Stream in Streams)
{
string INFO = Stream.Groups[1].Value;
Resolutions.Add((int.Parse(Regex.Match(INFO, "RESOLUTION=[^x]*x([^,]*)").Groups[1].Value), int.Parse(Regex.Match(INFO, "BANDWIDTH=([^,]*)").Groups[1].Value), Stream.Groups[2].Value));
}
IOrderedEnumerable <(int resolution, int bandwidth, string url)> OrderedResolutions = Resolutions.OrderByDescending(x => x.bandwidth).OrderByDescending(x => x.resolution);
string Choice = string.Empty;
bool CLIChoiceInvalid = Arguments.Quality != null && Arguments.Quality != "best" && !OrderedResolutions.Cast <Match>().Any(x => x.Groups[2].Value == Arguments.Quality);
if (Arguments.Quality == null || CLIChoiceInvalid)
{
if (CLIChoiceInvalid)
{
Logger.Error("--quality value \"" + Arguments.Quality + "\" is not valid\n Please choose a new one below.");
}
VideoTracks(OrderedResolutions.Select(res => new[] { res.resolution.ToString(), res.bandwidth.ToString() }).ToArray());
Choice = AskInput("Which resolution do you wish to download? (use # or 'best')").Trim('#');
}
else
{
Choice = Arguments.Quality;
}
var Selected = Choice == "best" ? OrderedResolutions.First() : OrderedResolutions.ElementAt(int.Parse(Choice) - 1);
if (!Selected.url.StartsWith("http"))
{
Selected.url = M3U8Url.Substring(0, M3U8Url.LastIndexOf('/') + 1) + Selected.url;
}
Logger.Info("VIDEO: " + Selected.resolution + "p @ " + Selected.bandwidth + " bandwidth");
Logger.Debug("M3U8: " + Selected.url);
return(Selected.url);
}