/// <summary>
/// Gets the metadata associated with the specified video.
/// </summary>
public async Task <Video> GetAsync(VideoId id)
{
var videoInfoResponse = await VideoInfoResponse.GetAsync(_httpClient, id);
var playerResponse = videoInfoResponse.GetPlayerResponse();
var watchPage = await WatchPage.GetAsync(_httpClient, id);
return(new Video(
id,
playerResponse.GetVideoTitle(),
playerResponse.GetVideoAuthor(),
playerResponse.GetVideoChannelId(),
playerResponse.GetVideoUploadDate(),
playerResponse.GetVideoDescription(),
playerResponse.GetVideoDuration(),
new ThumbnailSet(id),
playerResponse.GetVideoKeywords(),
new Engagement(
playerResponse.TryGetVideoViewCount() ?? 0,
watchPage.TryGetVideoLikeCount() ?? 0,
watchPage.TryGetVideoDislikeCount() ?? 0
),
Fallback.ToEmpty(watchPage.TryGetInitialData()?.GetChapters())
));
}
private async Task <Video> GetVideoFromWatchPageAsync(VideoId id)
{
var videoInfoResponse = await VideoInfoResponse.GetAsync(_httpClient, id);
var playerResponse = videoInfoResponse.GetPlayerResponse();
var watchPage = await WatchPage.GetAsync(_httpClient, id);
return(new Video(
id,
playerResponse.GetVideoTitle(),
playerResponse.GetVideoAuthor(),
playerResponse.GetVideoChannelId(),
playerResponse.GetVideoUploadDate(),
playerResponse.GetVideoDescription(),
playerResponse.GetVideoDuration(),
new ThumbnailSet(id),
playerResponse.GetVideoKeywords(),
new Engagement(
playerResponse.TryGetVideoViewCount() ?? 0,
watchPage.TryGetVideoLikeCount() ?? 0,
watchPage.TryGetVideoDislikeCount() ?? 0
)
));
}
private async Task <StreamContext> GetStreamContextFromWatchPageAsync(VideoId videoId)
{
var watchPage = await WatchPage.GetAsync(_httpClient, videoId);
var playerConfig = watchPage.TryGetPlayerConfig();
var playerResponse =
playerConfig?.GetPlayerResponse() ??
watchPage.TryGetPlayerResponse() ??
throw VideoUnplayableException.Unplayable(videoId);
var previewVideoId = playerResponse.TryGetPreviewVideoId();
if (!string.IsNullOrWhiteSpace(previewVideoId))
{
throw VideoRequiresPurchaseException.Preview(videoId, previewVideoId);
}
var playerSourceUrl = watchPage.TryGetPlayerSourceUrl() ?? playerConfig?.GetPlayerSourceUrl();
var playerSource = !string.IsNullOrWhiteSpace(playerSourceUrl)
? await PlayerSource.GetAsync(_httpClient, playerSourceUrl)
: null;
var cipherOperations = playerSource?.GetCipherOperations().ToArray() ?? Array.Empty <ICipherOperation>();
if (!playerResponse.IsVideoPlayable())
{
throw VideoUnplayableException.Unplayable(videoId, playerResponse.TryGetVideoPlayabilityError());
}
if (playerResponse.IsLive())
{
throw VideoUnplayableException.LiveStream(videoId);
}
var streamInfoProviders = new List <IStreamInfoProvider>();
// Streams from player config
if (playerConfig != null)
{
streamInfoProviders.AddRange(playerConfig.GetStreams());
}
// Streams from player response
streamInfoProviders.AddRange(playerResponse.GetStreams());
// Streams from DASH manifest
var dashManifestUrl = playerResponse.TryGetDashManifestUrl();
if (!string.IsNullOrWhiteSpace(dashManifestUrl))
{
var dashManifest = await GetDashManifestAsync(dashManifestUrl, cipherOperations);
streamInfoProviders.AddRange(dashManifest.GetStreams());
}
return(new StreamContext(streamInfoProviders, cipherOperations));
}
/// <summary>
/// Gets the metadata associated with the specified video.
/// </summary>
public async Task <Video> GetAsync(string id)
{
var videoInfoResponse = await VideoInfoResponse.GetAsync(_httpClient, id);
var playerResponse = videoInfoResponse.GetPlayerResponse();
var watchPage = await WatchPage.GetAsync(_httpClient, id);
//TODO
return(null);
}