public async Task<IEnumerable<RemoteSubtitleInfo>> SearchSubtitles(SubtitleSearchRequest request, CancellationToken cancellationToken)
{
var contentType = request.ContentType;
var providers = _subtitleProviders
.Where(i => i.SupportedMediaTypes.Contains(contentType))
.ToList();
// If not searching all, search one at a time until something is found
if (!request.SearchAllProviders)
{
foreach (var provider in providers)
{
try
{
var searchResults = await provider.Search(request, cancellationToken).ConfigureAwait(false);
var list = searchResults.ToList();
if (list.Count > 0)
{
Normalize(list);
return list;
}
}
catch (Exception ex)
{
_logger.ErrorException("Error downloading subtitles from {0}", ex, provider.Name);
}
}
return new List<RemoteSubtitleInfo>();
}
var tasks = providers.Select(async i =>
{
try
{
var searchResults = await i.Search(request, cancellationToken).ConfigureAwait(false);
var list = searchResults.ToList();
Normalize(list);
return list;
}
catch (Exception ex)
{
_logger.ErrorException("Error downloading subtitles from {0}", ex, i.Name);
return new List<RemoteSubtitleInfo>();
}
});
var results = await Task.WhenAll(tasks).ConfigureAwait(false);
return results.SelectMany(i => i);
}
private async Task<bool> DownloadSubtitles(Video video,
List<MediaStream> mediaStreams,
bool skipIfEmbeddedSubtitlesPresent,
bool skipIfAudioTrackMatches,
bool requirePerfectMatch,
string language,
VideoContentType mediaType,
CancellationToken cancellationToken)
{
// There's already subtitles for this language
if (mediaStreams.Any(i => i.Type == MediaStreamType.Subtitle && i.IsTextSubtitleStream && string.Equals(i.Language, language, StringComparison.OrdinalIgnoreCase)))
{
return false;
}
var audioStreams = mediaStreams.Where(i => i.Type == MediaStreamType.Audio).ToList();
var defaultAudioStreams = audioStreams.Where(i => i.IsDefault).ToList();
// If none are marked as default, just take a guess
if (defaultAudioStreams.Count == 0)
{
defaultAudioStreams = audioStreams.Take(1).ToList();
}
// There's already a default audio stream for this language
if (skipIfAudioTrackMatches &&
defaultAudioStreams.Any(i => string.Equals(i.Language, language, StringComparison.OrdinalIgnoreCase)))
{
return false;
}
// There's an internal subtitle stream for this language
if (skipIfEmbeddedSubtitlesPresent &&
mediaStreams.Any(i => i.Type == MediaStreamType.Subtitle && !i.IsExternal && string.Equals(i.Language, language, StringComparison.OrdinalIgnoreCase)))
{
return false;
}
var request = new SubtitleSearchRequest
{
ContentType = mediaType,
IndexNumber = video.IndexNumber,
Language = language,
MediaPath = video.Path,
Name = video.Name,
ParentIndexNumber = video.ParentIndexNumber,
ProductionYear = video.ProductionYear,
ProviderIds = video.ProviderIds,
// Stop as soon as we find something
SearchAllProviders = false,
IsPerfectMatch = requirePerfectMatch
};
var episode = video as Episode;
if (episode != null)
{
request.IndexNumberEnd = episode.IndexNumberEnd;
request.SeriesName = episode.SeriesName;
}
try
{
var searchResults = await _subtitleManager.SearchSubtitles(request, cancellationToken).ConfigureAwait(false);
var result = searchResults.FirstOrDefault();
if (result != null)
{
await _subtitleManager.DownloadSubtitles(video, result.Id, cancellationToken)
.ConfigureAwait(false);
return true;
}
}
catch (Exception ex)
{
_logger.ErrorException("Error downloading subtitles", ex);
}
return false;
}
public async Task<IEnumerable<RemoteSubtitleInfo>> Search(SubtitleSearchRequest request, CancellationToken cancellationToken)
{
var imdbIdText = request.GetProviderId(MetadataProviders.Imdb);
long imdbId = 0;
switch (request.ContentType)
{
case VideoContentType.Episode:
if (!request.IndexNumber.HasValue || !request.ParentIndexNumber.HasValue || string.IsNullOrEmpty(request.SeriesName))
{
_logger.Debug("Episode information missing");
return new List<RemoteSubtitleInfo>();
}
break;
case VideoContentType.Movie:
if (string.IsNullOrEmpty(request.Name))
{
_logger.Debug("Movie name missing");
return new List<RemoteSubtitleInfo>();
}
if (string.IsNullOrWhiteSpace(imdbIdText) || !long.TryParse(imdbIdText.TrimStart('t'), NumberStyles.Any, _usCulture, out imdbId))
{
_logger.Debug("Imdb id missing");
return new List<RemoteSubtitleInfo>();
}
break;
}
if (string.IsNullOrEmpty(request.MediaPath))
{
_logger.Debug("Path Missing");
return new List<RemoteSubtitleInfo>();
}
await Login(cancellationToken).ConfigureAwait(false);
var subLanguageId = NormalizeLanguage(request.Language);
var hash = Utilities.ComputeHash(request.MediaPath);
var fileInfo = new FileInfo(request.MediaPath);
var movieByteSize = fileInfo.Length;
var searchImdbId = request.ContentType == VideoContentType.Movie ? imdbId.ToString(_usCulture) : "";
var subtitleSearchParameters = request.ContentType == VideoContentType.Episode
? new List<SubtitleSearchParameters> {
new SubtitleSearchParameters(subLanguageId,
query: request.SeriesName,
season: request.ParentIndexNumber.Value.ToString(_usCulture),
episode: request.IndexNumber.Value.ToString(_usCulture))
}
: new List<SubtitleSearchParameters> {
new SubtitleSearchParameters(subLanguageId, imdbid: searchImdbId),
new SubtitleSearchParameters(subLanguageId, query: request.Name, imdbid: searchImdbId)
};
var parms = new List<SubtitleSearchParameters> {
new SubtitleSearchParameters( subLanguageId,
movieHash: hash,
movieByteSize: movieByteSize,
imdbid: searchImdbId ),
};
parms.AddRange(subtitleSearchParameters);
var result = await OpenSubtitles.SearchSubtitlesAsync(parms.ToArray(), cancellationToken).ConfigureAwait(false);
if (!(result is MethodResponseSubtitleSearch))
{
_logger.Error("Invalid response type");
return new List<RemoteSubtitleInfo>();
}
Predicate<SubtitleSearchResult> mediaFilter =
x =>
request.ContentType == VideoContentType.Episode
? !string.IsNullOrEmpty(x.SeriesSeason) && !string.IsNullOrEmpty(x.SeriesEpisode) &&
int.Parse(x.SeriesSeason, _usCulture) == request.ParentIndexNumber &&
int.Parse(x.SeriesEpisode, _usCulture) == request.IndexNumber
: !string.IsNullOrEmpty(x.IDMovieImdb) && long.Parse(x.IDMovieImdb, _usCulture) == imdbId;
var results = ((MethodResponseSubtitleSearch)result).Results;
// Avoid implicitly captured closure
var hasCopy = hash;
return results.Where(x => x.SubBad == "0" && mediaFilter(x))
.OrderBy(x => (x.MovieHash == hash ? 0 : 1))
.ThenBy(x => Math.Abs(long.Parse(x.MovieByteSize, _usCulture) - movieByteSize))
.ThenByDescending(x => int.Parse(x.SubDownloadsCnt, _usCulture))
.ThenByDescending(x => double.Parse(x.SubRating, _usCulture))
.Select(i => new RemoteSubtitleInfo
{
Author = i.UserNickName,
Comment = i.SubAuthorComment,
CommunityRating = float.Parse(i.SubRating, _usCulture),
DownloadCount = int.Parse(i.SubDownloadsCnt, _usCulture),
Format = i.SubFormat,
ProviderName = Name,
ThreeLetterISOLanguageName = i.SubLanguageID,
Id = i.SubFormat + "-" + i.SubLanguageID + "-" + i.IDSubtitleFile,
Name = i.SubFileName,
DateCreated = DateTime.Parse(i.SubAddDate, _usCulture),
IsHashMatch = i.MovieHash == hasCopy
}).Where(i => !string.Equals(i.Format, "sub", StringComparison.OrdinalIgnoreCase) && !string.Equals(i.Format, "idx", StringComparison.OrdinalIgnoreCase));
}
public Task<IEnumerable<RemoteSubtitleInfo>> SearchSubtitles(Video video, string language, CancellationToken cancellationToken)
{
if (video.LocationType != LocationType.FileSystem ||
video.VideoType != VideoType.VideoFile)
{
return Task.FromResult<IEnumerable<RemoteSubtitleInfo>>(new List<RemoteSubtitleInfo>());
}
VideoContentType mediaType;
if (video is Episode)
{
mediaType = VideoContentType.Episode;
}
else if (video is Movie)
{
mediaType = VideoContentType.Movie;
}
else
{
// These are the only supported types
return Task.FromResult<IEnumerable<RemoteSubtitleInfo>>(new List<RemoteSubtitleInfo>());
}
var request = new SubtitleSearchRequest
{
ContentType = mediaType,
IndexNumber = video.IndexNumber,
Language = language,
MediaPath = video.Path,
Name = video.Name,
ParentIndexNumber = video.ParentIndexNumber,
ProductionYear = video.ProductionYear,
ProviderIds = video.ProviderIds,
RuntimeTicks = video.RunTimeTicks
};
var episode = video as Episode;
if (episode != null)
{
request.IndexNumberEnd = episode.IndexNumberEnd;
request.SeriesName = episode.SeriesName;
}
return SearchSubtitles(request, cancellationToken);
}