private static async Task <TimeSpan?> GetByContentTypeAsync(Uri url)
{
if (url == null)
{
throw new ArgumentNullException();
}
// Get content type
try {
HttpWebRequest req = WebRequest.CreateHttp(url);
req.UserAgent = Shared.UserAgent;
req.Method = "HEAD";
using (var resp = await req.GetResponseAsync()) {
switch (resp.ContentType)
{
case "application/vnd.apple.mpegurl":
return(await HLS.GetPlaylistDurationAsync(url));
case "video/mp4":
return(await MP4.GetDurationAsync(url));
default:
return(null);
}
}
} catch (WebException ex) when((ex.Response as HttpWebResponse)?.StatusCode == HttpStatusCode.NotFound)
{
throw new VideoNotFoundException(ex);
}
}
private static async Task <TimeSpan?> GetByNameAsync(Uri url, string youTubeKey = null, ITwitchCredentials twitchCredentials = null)
{
if (url == null)
{
throw new ArgumentNullException();
}
if (url.AbsolutePath.EndsWith(".mp4", StringComparison.InvariantCultureIgnoreCase))
{
// Assume MP4
return(await MP4.GetDurationAsync(url));
}
else if (url.AbsolutePath.EndsWith(".m3u8", StringComparison.InvariantCultureIgnoreCase))
{
// Assume HLS
return(await HLS.GetPlaylistDurationAsync(url));
}
else if (url.Authority.EndsWith("vimeo.com"))
{
return(await Vimeo.GetDurationAsync(url));
}
else if (url.Authority.EndsWith("youtube.com") || url.Authority.EndsWith("youtu.be"))
{
return(youTubeKey == null
? null
: await new YouTube(youTubeKey).GetDurationAsync(url));
}
else if (url.Authority.EndsWith("dailymotion.com") || url.Authority.EndsWith("dai.ly"))
{
return(await Dailymotion.GetDurationAsync(url));
}
else if (url.Authority.EndsWith("twitch.tv"))
{
return(await new Twitch(twitchCredentials).GetDurationAsync(url));
}
else if (url.Authority.EndsWith("soundcloud.com"))
{
return(await SoundCloud.GetDurationAsync(url));
}
else
{
return(null);
}
}