/// <summary>
/// Downloads videos from a YouTube playlist and creates metadata for use in media players.
/// </summary>
/// <param name="playlistId">The ID of the YouTube playlist.</param>
/// <param name="downloadFolder">The folder to download videos to.</param>
public static void Main(string playlistId, string downloadFolder)
{
if (playlistId == null)
{
throw new ArgumentNullException(nameof(playlistId));
}
if (downloadFolder == null)
{
throw new ArgumentNullException(nameof(downloadFolder));
}
Directory.CreateDirectory(downloadFolder);
var httpClient = new HttpClient();
var seenItems = new SeenItems(downloadFolder);
var localMetadata = new LocalMetadata(httpClient);
EnsureFfmpegDependency(new Ffmpeg(httpClient));
var playlist = GetPlaylist(playlistId);
EnsureMetadata(playlist, downloadFolder, localMetadata);
var allVideos = playlist.Videos;
var newVideos = FilterAndSortVideos(allVideos, seenItems.GetIds());
ProcessVideos(newVideos, seenItems, downloadFolder, localMetadata);
}
public LocalMetadataTest()
{
FakeHttpMessageHandler = new FakeHttpMessageHandler();
LocalMetadata = new LocalMetadata(new HttpClient(FakeHttpMessageHandler));
Folder = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
Directory.CreateDirectory(Folder);
}
public void DownloadPlaylist(string id, bool doNotReorder, string downloadFolder, int season = 1)
{
if (id == null)
{
throw new ArgumentNullException(nameof(id));
}
if (downloadFolder == null)
{
throw new ArgumentNullException(nameof(downloadFolder));
}
Directory.CreateDirectory(downloadFolder);
var seenItems = new SeenItems(downloadFolder);
var localMetadata = new LocalMetadata(HttpClient);
var playlist = GetPlaylist(id);
EnsureMetadata(playlist, downloadFolder, localMetadata);
var allVideos = playlist.Videos;
var sortedVideos = doNotReorder ? allVideos : allVideos.OrderBy(item => item.UploadDate).ToList();
var newVideos = sortedVideos.Where(video => !seenItems.GetIds().Contains(video.Id.Value));
ProcessVideos(newVideos, seenItems, downloadFolder, season, localMetadata);
}
public void Save_Episode_Required()
{
var metadata = new Episode("제목");
LocalMetadata.Save(metadata, Folder, metadata.Title);
GetMetadataFileContents(metadata.Title).ShouldBe(
@"<?xml version=""1.0"" encoding=""utf-8"" standalone=""yes""?>
<episodedetails>
<title>제목</title>
<plot />
<aired />
</episodedetails>"
);
}
public void Save_Movie_Required()
{
var metadata = new Movie("제목");
LocalMetadata.Save(metadata, Folder, metadata.Title);
GetMetadataFileContents(metadata.Title).ShouldBe(
@"<?xml version=""1.0"" encoding=""utf-8"" standalone=""yes""?>
<movie>
<title>제목</title>
<plot />
<releasedate />
</movie>"
);
}
public void Save_TVShow_Required()
{
var metadata = new TVShow("제목");
LocalMetadata.Save(metadata, Folder);
GetMetadataFileContents("tvshow").ShouldBe(
@"<?xml version=""1.0"" encoding=""utf-8"" standalone=""yes""?>
<tvshow>
<title>제목</title>
<plot />
<premiered />
</tvshow>"
);
}
public void Save_TVShow_PosterUrl()
{
var fakePosterUrl = "https://fake.tv.show/poster.png";
var fakePosterContents = "fake tv show poster";
FakeHttpMessageHandler.Mock(fakePosterUrl, fakePosterContents);
string posterMetadataPath = Path.Combine(Folder, "folder.png");
var metadata = new TVShow(title: "title", posterPathOrUrl: fakePosterUrl);
LocalMetadata.Save(metadata, Folder);
File.Exists(posterMetadataPath).ShouldBeTrue();
File.ReadAllText(posterMetadataPath).ShouldBe(fakePosterContents);
}
public void Save_TVShow_PosterPath()
{
var fakePosterPath = Path.GetTempFileName();
var fakePosterContents = "fake tv show poster";
File.WriteAllText(fakePosterPath, fakePosterContents);
string posterMetadataPath = Path.Combine(Folder, $"folder{Path.GetExtension(fakePosterPath)}");
var metadata = new TVShow(title: "title", posterPathOrUrl: fakePosterPath);
LocalMetadata.Save(metadata, Folder);
File.Exists(posterMetadataPath).ShouldBeTrue();
File.ReadAllText(posterMetadataPath).ShouldBe(fakePosterContents);
}
public void Save_TVShow_Optional()
{
var metadata = new TVShow(title: "제목", plot: "a\nb", premiered: new DateTime(2019, 02, 03), posterPathOrUrl: "");
LocalMetadata.Save(metadata, Folder);
GetMetadataFileContents("tvshow").ShouldBe(
@"<?xml version=""1.0"" encoding=""utf-8"" standalone=""yes""?>
<tvshow>
<title>제목</title>
<plot>a
b</plot>
<premiered>2019-02-03</premiered>
</tvshow>"
);
}
public void Save_Episode_Optional()
{
var metadata = new Episode(title: "제목", plot: "a\nb", aired: new DateTime(2019, 02, 03));
LocalMetadata.Save(metadata, Folder, metadata.Title);
GetMetadataFileContents(metadata.Title).ShouldBe(
@"<?xml version=""1.0"" encoding=""utf-8"" standalone=""yes""?>
<episodedetails>
<title>제목</title>
<plot>a
b</plot>
<aired>2019-02-03</aired>
</episodedetails>"
);
}
public void Save_Movie_PosterUrl()
{
var fakePosterUrl = "https://fake.com/poster.png";
var fakePosterContents = "fake poster";
FakeHttpMessageHandler.Mock(fakePosterUrl, fakePosterContents);
var metadata = new Movie(title: "title", posterPathOrUrl: fakePosterUrl);
string posterMetadataPath = Path.Combine(Folder, $"{metadata.Title}.png");
LocalMetadata.Save(metadata, Folder, metadata.Title);
File.Exists(posterMetadataPath).ShouldBeTrue();
File.ReadAllText(posterMetadataPath).ShouldBe(fakePosterContents);
}
public void Save_Movie_Optional()
{
var metadata = new Movie(title: "제목", plot: "a\nb", releaseDate: new DateTime(2019, 02, 03), posterPathOrUrl: "");
LocalMetadata.Save(metadata, Folder, metadata.Title);
GetMetadataFileContents(metadata.Title).ShouldBe(
@"<?xml version=""1.0"" encoding=""utf-8"" standalone=""yes""?>
<movie>
<title>제목</title>
<plot>a
b</plot>
<releasedate>2019-02-03</releasedate>
</movie>"
);
}
private static void EnsureMetadata(Playlist playlist, string downloadFolder, LocalMetadata localMetadata)
{
if (!File.Exists(Path.Combine(downloadFolder, "tvshow.nfo")))
{
Console.WriteLine("Creating metadata");
Console.Write("\tInput poster path or URL: ");
var posterPathOrUrl = Console.ReadLine();
localMetadata.Save(
new TVShow(
title: playlist.Title,
plot: playlist.Description,
premiered: playlist.Videos.OrderBy(video => video.UploadDate).First().UploadDate,
posterPathOrUrl: posterPathOrUrl),
downloadFolder);
}
}
public void DownloadVideo(string id, string downloadFolder)
{
if (id == null)
{
throw new ArgumentNullException(nameof(id));
}
if (downloadFolder == null)
{
throw new ArgumentNullException(nameof(downloadFolder));
}
Directory.CreateDirectory(downloadFolder);
var localMetadata = new LocalMetadata(HttpClient);
var video = GetVideo(id);
var videoFileNameBase = video.Title.Aggregate("", (agg, cur) => Path.GetInvalidFileNameChars().Contains(cur) ? agg : agg + cur);
SaveMetadata(video, downloadFolder, videoFileNameBase, localMetadata);
SaveVideo(video, downloadFolder, videoFileNameBase);
}
private void SaveMetadata(YTVideo video, string downloadFolder, string videoFileNameBase, LocalMetadata localMetadata)
{
Console.WriteLine("Creating metadata");
Console.Write("\tInput poster path or URL: ");
var posterPathOrUrl = Console.ReadLine();
localMetadata.Save(
new Movie(
title: video.Title,
plot: video.Description,
releaseDate: video.UploadDate,
posterPathOrUrl: posterPathOrUrl),
downloadFolder,
videoFileNameBase);
}
private void ProcessVideos(IEnumerable <YTVideo> videos, SeenItems seenItems, string downloadFolder, int season, LocalMetadata localMetadata)
{
var client = new YoutubeClient();
var seasonFolder = Path.Combine(downloadFolder, $"Season {season}");
Directory.CreateDirectory(seasonFolder);
var episodeNumber = GetLastEpisodeNumber(seasonFolder);
videos.ToList().ForEach(video =>
{
episodeNumber++;
Console.WriteLine($" 0.00% Downloading {video.Id} {episodeNumber} {video.Title}");
Console.SetCursorPosition(0, Console.CursorTop - 1);
var videoFileNameBase = $"S{season.ToString().PadLeft(2, '0')}E{episodeNumber.ToString("N0").PadLeft(2, '0')} " + video.Title.Aggregate("", (agg, cur) => Path.GetInvalidFileNameChars().Contains(cur) ? agg : agg + cur);
var progress = new ConcurrentProgress <double>(d =>
{
Console.SetCursorPosition(0, Console.CursorTop);
Console.Write((d * 100).ToString("N2").PadLeft(6));
});
Downloaders.DownloadVideo(client, video, seasonFolder, videoFileNameBase, progress);
Downloaders.DownloadAllCaptions(client, video, seasonFolder, videoFileNameBase, progress);
CreateMetadata(video, seasonFolder, videoFileNameBase, localMetadata);
seenItems.SaveId(video.Id);
Console.WriteLine();
});
}
private static void ProcessVideos(IEnumerable <Video> videos, SeenItems seenItems, string downloadFolder, LocalMetadata localMetadata)
{
var client = new YoutubeClient();
var seasonFolder = Path.Combine(downloadFolder, "Season 1");
Directory.CreateDirectory(seasonFolder);
var episodeNumber = GetLastEpisodeNumber(seasonFolder);
videos.ToList().ForEach(video =>
{
Console.WriteLine($" 0.00% Downloading {video.Title}");
Console.SetCursorPosition(0, Console.CursorTop - 1);
episodeNumber++;
var videoFileNameBase = $"S01E{episodeNumber.ToString("N0").PadLeft(2, '0')} " + video.Title.Replace('|', '-');
var progress = new ConcurrentProgress <double>(d =>
{
Console.SetCursorPosition(0, Console.CursorTop);
Console.Write((d * 100).ToString("N2").PadLeft(6));
});
DownloadVideo(client, video, seasonFolder, videoFileNameBase, progress);
DownloadAllCaptions(client, video, seasonFolder, videoFileNameBase, progress);
CreateMetadata(video, seasonFolder, videoFileNameBase, localMetadata);
seenItems.SaveId(video.Id);
Console.WriteLine();
});
}
private static void CreateMetadata(Video video, string downloadFolder, string videoFileNameBase, LocalMetadata localMetadata)
{
Console.WriteLine();
Console.Write(" \tmetadata");
localMetadata.Save(new Episode(title: video.Title, plot: video.Description, aired: video.UploadDate), downloadFolder, videoFileNameBase);
}
