/// <summary>
/// Gets an instance asynchronously of the <see cref="YoutubeSongInfo"/> class.
/// </summary>
/// <param name="Source">The URL of the video</param>
/// <returns>A <see cref="YoutubeSongInfo"/> instance.</returns>
public static async Task <YoutubeSongInfo> GetVideoInfoAsync(string Source)
{
YoutubeDl d = new YoutubeDl("youtube-dl.exe", App.Path)
{
VideoID = YoutubeUri.GetVideoID(Source)
};
YoutubeMediaInfo r = await d.GetVideoInfo();
var Result = new YoutubeSongInfo(
Source: Source,
Title: r.RecognizedMedia?.Title ?? r.Title,
Artist: r.RecognizedMedia?.Artist,
DurationInSeconds: r.Duration.TotalSeconds
)
{
Formats = r.MediaFormats
};
if (App.Config.YoutubeDownloadThumbnail)
{
Result.AlbumImage = await r.Thumbnails.FirstOrDefault()?.DownloadAsImageAsync();
}
return(Result);
}
/// <summary>
/// Downloads informations about the video asynchronously.
/// </summary>
/// <returns>An <see cref="ExpandoObject"/> instance that holds the video information.</returns>
public async Task <YoutubeMediaInfo> GetVideoInfo()
{
this.RequiresUpdateAndRetry = false;
Process DownloaderProcess = new Process()
{
StartInfo = new ProcessStartInfo {
FileName = this.ExecutablePath,
Arguments = $"--dump-json {this.YoutubeUri}",
UseShellExecute = false,
WindowStyle = ProcessWindowStyle.Hidden,
CreateNoWindow = true,
WorkingDirectory = this.WorkingDirectory,
RedirectStandardOutput = true,
RedirectStandardError = true
}
};
StringBuilder StdOut = new StringBuilder();
DownloaderProcess.OutputDataReceived += (o, e) => StdOut.Append(e.Data);
DownloaderProcess.ErrorDataReceived += (o, e) => this.CheckIfUpdateRequired(e.Data);
DownloaderProcess.Start();
DownloaderProcess.BeginOutputReadLine();
await DownloaderProcess.WaitForExitAsync();
string json = StdOut.ToString();
dynamic Result = JsonConvert.DeserializeObject <ExpandoObject>(json, new ExpandoObjectConverter());
if (RequiresUpdateAndRetry && this.AutoUpdateAndRetry)
{
await this.UpdateAsync();
return(await GetVideoInfo());
}
return(YoutubeMediaInfo.FromDynamicJson(Result));
}
