Esempio n. 1
0
 /// <summary>
 /// Selects a format from the list of available formats based on the given format specifier (single).
 /// Ported from _build_selector_function() in youtube_dl/YoutubeDL.py:
 /// https://github.com/ytdl-org/youtube-dl/blob/9c1e164e0cd77331ea4f0b474b32fd06f84bad71/youtube_dl/YoutubeDL.py#L1262-L1316.
 /// </summary>
 /// <returns>The selected format or null if not found.</returns>
 public static FormatData SelectSingleFormat(this VideoData videoData, string formatSpecifier)
 {
     if (new[] { "best", "worst", null }.Contains(formatSpecifier))
     {
         var audioVideoFormats = videoData.GetAudioVideoFormats().ToList();
         if (audioVideoFormats.Count > 0)
         {
             int index = formatSpecifier == "worst" ? 0 : (audioVideoFormats.Count - 1);
             return(audioVideoFormats[index]);
         }
         // select best video-only or audio-only format
         else
         {
             int index = formatSpecifier == "worst" ? 0 : (videoData.Formats.Length - 1);
             return(videoData.Formats[index]);
         }
     }
     else if (formatSpecifier == "bestaudio")
     {
         var audioFormats = videoData.GetAudioOnlyFormats().ToList();
         if (audioFormats.Count > 0)
         {
             return(audioFormats[audioFormats.Count - 1]);
         }
         else
         {
             return(null);
         }
     }
     else if (formatSpecifier == "worstaudio")
     {
         var audioFormats = videoData.GetAudioOnlyFormats().ToList();
         if (audioFormats.Count > 0)
         {
             return(audioFormats[0]);
         }
         else
         {
             return(null);
         }
     }
     else if (formatSpecifier == "bestvideo")
     {
         var audioFormats = videoData.GetVideoOnlyFormats().ToList();
         if (audioFormats.Count > 0)
         {
             return(audioFormats[audioFormats.Count - 1]);
         }
         else
         {
             return(null);
         }
     }
     else if (formatSpecifier == "worstvideo")
     {
         var audioFormats = videoData.GetVideoOnlyFormats().ToList();
         if (audioFormats.Count > 0)
         {
             return(audioFormats[0]);
         }
         else
         {
             return(null);
         }
     }
     else
     {
         string[] extensions = new[] { "mp4", "flv", "webm", "3gp", "m4a", "mp3", "ogg", "aac", "wav" };
         if (extensions.Contains(formatSpecifier))
         {
             var matches = videoData.Formats.Where(f => f.Extension == formatSpecifier);
             return(matches.LastOrDefault());
         }
         else
         {
             var matches = videoData.Formats.Where(f => f.FormatId == formatSpecifier);
             return(matches.LastOrDefault());
         }
     }
 }