public YoutubeVideoFormat(YoutubeVideoInfo source, JToken data)
{
this.VideoInfo = source;
this.FileExtension = data.Value <string>("ext");
this.FormatID = data.Value <string>("format_id");
this.FormatNote = data.Value <string>("format_note");
this.FormatName = data.Value <string>("format");
this.Protocol = data.Value <string>("protocol");
string tmp_str = data.Value <string>("acodec");
if (string.IsNullOrEmpty(tmp_str) || string.Equals(tmp_str, "none", StringComparison.OrdinalIgnoreCase))
{
this.AudioCodec = null;
}
else
{
this.AudioSampleRate = data.Value <int?>("asr");
this.AudioCodec = tmp_str;
}
tmp_str = data.Value <string>("vcodec");
if (string.IsNullOrEmpty(tmp_str) || string.Equals(tmp_str, "none", StringComparison.OrdinalIgnoreCase))
{
this.VideoResolution = new System.Windows.Size(0, 0);
this.VideoCodec = null;
}
else
{
int?int_width = data.Value <int?>("width"),
int_height = data.Value <int?>("height");
this.VideoResolution = new System.Windows.Size(int_width.HasValue ? int_width.Value : 0, int_height.HasValue ? int_height.Value : 0);
this.VideoCodec = tmp_str;
}
this.FPS = data.Value <int?>("fps");
this.Bitrate = data.Value <double>("tbr");
this.AudioBirate = data.Value <int?>("abr");
tmp_str = data.Value <string>("url");
if (string.IsNullOrWhiteSpace(tmp_str))
{
this.DirectLink = null;
}
else
{
this.DirectLink = new Uri(tmp_str);
}
this.FileSize = data.Value <long?>("filesize");
}
/// <summary>
/// Prepare a download session for the given video information and its format
/// </summary>
/// <param name="videoInfo">Video information</param>
/// <param name="formatID">The format ID of the video</param>
/// <exception cref="ArgumentNullException"><paramref name="formatID"/> is null or whitespace.</exception>
/// <exception cref="InvalidOperationException">No format matched the <paramref name="formatID"/>.</exception>
/// <returns></returns>
public VideoDownloadSession PrepareVideoDownload(YoutubeVideoInfo videoInfo, string formatID)
{
if (string.IsNullOrWhiteSpace(formatID))
{
throw new ArgumentNullException(nameof(formatID));
}
if (videoInfo.Formats.Count == 0)
{
throw new InvalidOperationException("The video has no available format to download.");
}
return(this.PrepareVideoDownload(videoInfo.Formats.First(x => string.Equals(x.FormatID, formatID))));
}
