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jellyfin/MediaBrowser.Providers/MediaInfo/FFProbeVideoInfo.cs

809 lines
31 KiB

using DvdLib.Ifo;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.IO;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Localization;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Controller.Subtitles;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Providers.MediaInfo
{
public class FFProbeVideoInfo
{
private readonly ILogger _logger;
private readonly IIsoManager _isoManager;
private readonly IMediaEncoder _mediaEncoder;
private readonly IItemRepository _itemRepo;
private readonly IBlurayExaminer _blurayExaminer;
private readonly ILocalizationManager _localization;
private readonly IApplicationPaths _appPaths;
private readonly IJsonSerializer _json;
private readonly IEncodingManager _encodingManager;
private readonly IFileSystem _fileSystem;
private readonly IServerConfigurationManager _config;
private readonly ISubtitleManager _subtitleManager;
private readonly CultureInfo _usCulture = new CultureInfo("en-US");
public FFProbeVideoInfo(ILogger logger, IIsoManager isoManager, IMediaEncoder mediaEncoder, IItemRepository itemRepo, IBlurayExaminer blurayExaminer, ILocalizationManager localization, IApplicationPaths appPaths, IJsonSerializer json, IEncodingManager encodingManager, IFileSystem fileSystem, IServerConfigurationManager config, ISubtitleManager subtitleManager)
{
_logger = logger;
_isoManager = isoManager;
_mediaEncoder = mediaEncoder;
_itemRepo = itemRepo;
_blurayExaminer = blurayExaminer;
_localization = localization;
_appPaths = appPaths;
_json = json;
_encodingManager = encodingManager;
_fileSystem = fileSystem;
_config = config;
_subtitleManager = subtitleManager;
}
public async Task<ItemUpdateType> ProbeVideo<T>(T item, IDirectoryService directoryService, CancellationToken cancellationToken)
where T : Video
{
var isoMount = await MountIsoIfNeeded(item, cancellationToken).ConfigureAwait(false);
BlurayDiscInfo blurayDiscInfo = null;
try
{
if (item.VideoType == VideoType.BluRay || (item.IsoType.HasValue && item.IsoType == IsoType.BluRay))
{
var inputPath = isoMount != null ? isoMount.MountedPath : item.Path;
blurayDiscInfo = GetBDInfo(inputPath);
}
OnPreFetch(item, isoMount, blurayDiscInfo);
// If we didn't find any satisfying the min length, just take them all
if (item.VideoType == VideoType.Dvd || (item.IsoType.HasValue && item.IsoType == IsoType.Dvd))
{
if (item.PlayableStreamFileNames.Count == 0)
{
_logger.Error("No playable vobs found in dvd structure, skipping ffprobe.");
return ItemUpdateType.MetadataImport;
}
}
if (item.VideoType == VideoType.BluRay || (item.IsoType.HasValue && item.IsoType == IsoType.BluRay))
{
if (item.PlayableStreamFileNames.Count == 0)
{
_logger.Error("No playable vobs found in bluray structure, skipping ffprobe.");
return ItemUpdateType.MetadataImport;
}
}
var result = await GetMediaInfo(item, isoMount, cancellationToken).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
FFProbeHelpers.NormalizeFFProbeResult(result);
cancellationToken.ThrowIfCancellationRequested();
await Fetch(item, cancellationToken, result, isoMount, blurayDiscInfo, directoryService).ConfigureAwait(false);
}
finally
{
if (isoMount != null)
{
isoMount.Dispose();
}
}
return ItemUpdateType.MetadataImport;
}
private const string SchemaVersion = "1";
private async Task<InternalMediaInfoResult> GetMediaInfo(BaseItem item, IIsoMount isoMount, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var idString = item.Id.ToString("N");
var cachePath = Path.Combine(_appPaths.CachePath,
"ffprobe-video",
idString.Substring(0, 2), idString, "v" + SchemaVersion + _mediaEncoder.Version + item.DateModified.Ticks.ToString(_usCulture) + ".json");
try
{
return _json.DeserializeFromFile<InternalMediaInfoResult>(cachePath);
}
catch (FileNotFoundException)
{
}
catch (DirectoryNotFoundException)
{
}
var type = InputType.File;
var inputPath = isoMount == null ? new[] { item.Path } : new[] { isoMount.MountedPath };
var video = item as Video;
if (video != null)
{
inputPath = MediaEncoderHelpers.GetInputArgument(video.Path, video.LocationType == LocationType.Remote, video.VideoType, video.IsoType, isoMount, video.PlayableStreamFileNames, out type);
}
var result = await _mediaEncoder.GetMediaInfo(inputPath, type, false, cancellationToken).ConfigureAwait(false);
Directory.CreateDirectory(Path.GetDirectoryName(cachePath));
_json.SerializeToFile(result, cachePath);
return result;
}
protected async Task Fetch(Video video, CancellationToken cancellationToken, InternalMediaInfoResult data, IIsoMount isoMount, BlurayDiscInfo blurayInfo, IDirectoryService directoryService)
{
var mediaInfo = MediaEncoderHelpers.GetMediaInfo(data);
var mediaStreams = mediaInfo.MediaStreams;
video.TotalBitrate = mediaInfo.TotalBitrate;
video.FormatName = (mediaInfo.Format ?? string.Empty)
.Replace("matroska", "mkv", StringComparison.OrdinalIgnoreCase);
if (data.format != null)
{
// For dvd's this may not always be accurate, so don't set the runtime if the item already has one
var needToSetRuntime = video.VideoType != VideoType.Dvd || video.RunTimeTicks == null || video.RunTimeTicks.Value == 0;
if (needToSetRuntime && !string.IsNullOrEmpty(data.format.duration))
{
video.RunTimeTicks = TimeSpan.FromSeconds(double.Parse(data.format.duration, _usCulture)).Ticks;
}
if (video.VideoType == VideoType.VideoFile)
{
var extension = (Path.GetExtension(video.Path) ?? string.Empty).TrimStart('.');
video.Container = extension;
}
else
{
video.Container = null;
}
if (!string.IsNullOrEmpty(data.format.size))
{
video.Size = long.Parse(data.format.size, _usCulture);
}
else
{
video.Size = null;
}
}
var mediaChapters = (data.Chapters ?? new MediaChapter[] { }).ToList();
var chapters = mediaChapters.Select(GetChapterInfo).ToList();
if (video.VideoType == VideoType.BluRay || (video.IsoType.HasValue && video.IsoType.Value == IsoType.BluRay))
{
FetchBdInfo(video, chapters, mediaStreams, blurayInfo);
}
await AddExternalSubtitles(video, mediaStreams, directoryService, cancellationToken).ConfigureAwait(false);
FetchWtvInfo(video, data);
video.IsHD = mediaStreams.Any(i => i.Type == MediaStreamType.Video && i.Width.HasValue && i.Width.Value >= 1270);
if (chapters.Count == 0 && mediaStreams.Any(i => i.Type == MediaStreamType.Video))
{
AddDummyChapters(video, chapters);
}
var videoStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
video.VideoBitRate = videoStream == null ? null : videoStream.BitRate;
video.DefaultVideoStreamIndex = videoStream == null ? (int?)null : videoStream.Index;
video.HasSubtitles = mediaStreams.Any(i => i.Type == MediaStreamType.Subtitle);
ExtractTimestamp(video);
await _encodingManager.RefreshChapterImages(new ChapterImageRefreshOptions
{
Chapters = chapters,
Video = video,
ExtractImages = false,
SaveChapters = false
}, cancellationToken).ConfigureAwait(false);
await _itemRepo.SaveMediaStreams(video.Id, mediaStreams, cancellationToken).ConfigureAwait(false);
await _itemRepo.SaveChapters(video.Id, chapters, cancellationToken).ConfigureAwait(false);
}
private ChapterInfo GetChapterInfo(MediaChapter chapter)
{
var info = new ChapterInfo();
if (chapter.tags != null)
{
string name;
if (chapter.tags.TryGetValue("title", out name))
{
info.Name = name;
}
}
info.StartPositionTicks = chapter.start / 100;
return info;
}
private void FetchBdInfo(BaseItem item, List<ChapterInfo> chapters, List<MediaStream> mediaStreams, BlurayDiscInfo blurayInfo)
{
var video = (Video)item;
int? currentHeight = null;
int? currentWidth = null;
int? currentBitRate = null;
var videoStream = mediaStreams.FirstOrDefault(s => s.Type == MediaStreamType.Video);
// Grab the values that ffprobe recorded
if (videoStream != null)
{
currentBitRate = videoStream.BitRate;
currentWidth = videoStream.Width;
currentHeight = videoStream.Height;
}
// Fill video properties from the BDInfo result
mediaStreams.Clear();
mediaStreams.AddRange(blurayInfo.MediaStreams);
video.MainFeaturePlaylistName = blurayInfo.PlaylistName;
if (blurayInfo.RunTimeTicks.HasValue && blurayInfo.RunTimeTicks.Value > 0)
{
video.RunTimeTicks = blurayInfo.RunTimeTicks;
}
video.PlayableStreamFileNames = blurayInfo.Files.ToList();
if (blurayInfo.Chapters != null)
{
chapters.Clear();
chapters.AddRange(blurayInfo.Chapters.Select(c => new ChapterInfo
{
StartPositionTicks = TimeSpan.FromSeconds(c).Ticks
}));
}
videoStream = mediaStreams.FirstOrDefault(s => s.Type == MediaStreamType.Video);
// Use the ffprobe values if these are empty
if (videoStream != null)
{
videoStream.BitRate = IsEmpty(videoStream.BitRate) ? currentBitRate : videoStream.BitRate;
videoStream.Width = IsEmpty(videoStream.Width) ? currentWidth : videoStream.Width;
videoStream.Height = IsEmpty(videoStream.Height) ? currentHeight : videoStream.Height;
}
}
private bool IsEmpty(int? num)
{
return !num.HasValue || num.Value == 0;
}
/// <summary>
/// Gets information about the longest playlist on a bdrom
/// </summary>
/// <param name="path">The path.</param>
/// <returns>VideoStream.</returns>
private BlurayDiscInfo GetBDInfo(string path)
{
return _blurayExaminer.GetDiscInfo(path);
}
private void FetchWtvInfo(Video video, InternalMediaInfoResult data)
{
if (data.format == null || data.format.tags == null)
{
return;
}
if (video.Genres.Count == 0)
{
if (!video.LockedFields.Contains(MetadataFields.Genres))
{
var genres = FFProbeHelpers.GetDictionaryValue(data.format.tags, "genre");
if (!string.IsNullOrEmpty(genres))
{
video.Genres = genres.Split(new[] { ';', '/', ',' }, StringSplitOptions.RemoveEmptyEntries)
.Where(i => !string.IsNullOrWhiteSpace(i))
.Select(i => i.Trim())
.ToList();
}
}
}
if (string.IsNullOrEmpty(video.Overview))
{
if (!video.LockedFields.Contains(MetadataFields.Overview))
{
var overview = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/SubTitleDescription");
if (!string.IsNullOrWhiteSpace(overview))
{
video.Overview = overview;
}
}
}
if (string.IsNullOrEmpty(video.OfficialRating))
{
var officialRating = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/ParentalRating");
if (!string.IsNullOrWhiteSpace(officialRating))
{
if (!video.LockedFields.Contains(MetadataFields.OfficialRating))
{
video.OfficialRating = officialRating;
}
}
}
if (video.People.Count == 0)
{
if (!video.LockedFields.Contains(MetadataFields.Cast))
{
var people = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/MediaCredits");
if (!string.IsNullOrEmpty(people))
{
video.People = people.Split(new[] { ';', '/' }, StringSplitOptions.RemoveEmptyEntries)
.Where(i => !string.IsNullOrWhiteSpace(i))
.Select(i => new PersonInfo { Name = i.Trim(), Type = PersonType.Actor })
.ToList();
}
}
}
if (!video.ProductionYear.HasValue)
{
var year = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/OriginalReleaseTime");
if (!string.IsNullOrWhiteSpace(year))
{
int val;
if (int.TryParse(year, NumberStyles.Integer, _usCulture, out val))
{
video.ProductionYear = val;
}
}
}
}
private IEnumerable<string> SubtitleExtensions
{
get
{
return new[] { ".srt", ".ssa", ".ass" };
}
}
public IEnumerable<FileSystemInfo> GetSubtitleFiles(Video video, IDirectoryService directoryService, bool clearCache)
{
var containingPath = video.ContainingFolderPath;
if (string.IsNullOrEmpty(containingPath))
{
throw new ArgumentException(string.Format("Cannot search for items that don't have a path: {0} {1}", video.Name, video.Id));
}
var files = directoryService.GetFiles(containingPath, clearCache);
var videoFileNameWithoutExtension = Path.GetFileNameWithoutExtension(video.Path);
return files.Where(i =>
{
if (!i.Attributes.HasFlag(FileAttributes.Directory) &&
SubtitleExtensions.Contains(i.Extension, StringComparer.OrdinalIgnoreCase))
{
var fullName = i.FullName;
var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fullName);
if (string.Equals(videoFileNameWithoutExtension, fileNameWithoutExtension, StringComparison.OrdinalIgnoreCase))
{
return true;
}
if (fileNameWithoutExtension.StartsWith(videoFileNameWithoutExtension + ".", StringComparison.OrdinalIgnoreCase))
{
return true;
}
}
return false;
});
}
/// <summary>
/// Adds the external subtitles.
/// </summary>
/// <param name="video">The video.</param>
/// <param name="currentStreams">The current streams.</param>
private async Task AddExternalSubtitles(Video video, List<MediaStream> currentStreams, IDirectoryService directoryService, CancellationToken cancellationToken)
{
var externalSubtitleStreams = GetExternalSubtitleStreams(video, currentStreams.Count, directoryService, false).ToList();
if ((_config.Configuration.SubtitleOptions.DownloadEpisodeSubtitles &&
video is Episode) ||
(_config.Configuration.SubtitleOptions.DownloadMovieSubtitles &&
video is Movie))
{
var downloadedLanguages = await new SubtitleDownloader(_logger,
_subtitleManager)
.DownloadSubtitles(video,
currentStreams,
externalSubtitleStreams,
_config.Configuration.SubtitleOptions.SkipIfGraphicalSubtitlesPresent,
_config.Configuration.SubtitleOptions.SkipIfAudioTrackMatches,
_config.Configuration.SubtitleOptions.DownloadLanguages,
cancellationToken).ConfigureAwait(false);
// Rescan
if (downloadedLanguages.Count > 0)
{
externalSubtitleStreams = GetExternalSubtitleStreams(video, currentStreams.Count, directoryService, true).ToList();
}
}
video.SubtitleFiles = externalSubtitleStreams.Select(i => i.Path).OrderBy(i => i).ToList();
currentStreams.AddRange(externalSubtitleStreams);
}
private IEnumerable<MediaStream> GetExternalSubtitleStreams(Video video,
int startIndex,
IDirectoryService directoryService,
bool clearCache)
{
var files = GetSubtitleFiles(video, directoryService, clearCache);
var streams = new List<MediaStream>();
var videoFileNameWithoutExtension = Path.GetFileNameWithoutExtension(video.Path);
foreach (var file in files)
{
var fullName = file.FullName;
var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fullName);
// If the subtitle file matches the video file name
if (string.Equals(videoFileNameWithoutExtension, fileNameWithoutExtension, StringComparison.OrdinalIgnoreCase))
{
streams.Add(new MediaStream
{
Index = startIndex++,
Type = MediaStreamType.Subtitle,
IsExternal = true,
Path = fullName,
Codec = Path.GetExtension(fullName).ToLower().TrimStart('.')
});
}
else if (fileNameWithoutExtension.StartsWith(videoFileNameWithoutExtension + ".", StringComparison.OrdinalIgnoreCase))
{
// Support xbmc naming conventions - 300.spanish.srt
var language = fileNameWithoutExtension.Split('.').LastOrDefault();
// Try to translate to three character code
// Be flexible and check against both the full and three character versions
var culture = _localization.GetCultures()
.FirstOrDefault(i => string.Equals(i.DisplayName, language, StringComparison.OrdinalIgnoreCase) || string.Equals(i.Name, language, StringComparison.OrdinalIgnoreCase) || string.Equals(i.ThreeLetterISOLanguageName, language, StringComparison.OrdinalIgnoreCase) || string.Equals(i.TwoLetterISOLanguageName, language, StringComparison.OrdinalIgnoreCase));
if (culture != null)
{
language = culture.ThreeLetterISOLanguageName;
}
streams.Add(new MediaStream
{
Index = startIndex++,
Type = MediaStreamType.Subtitle,
IsExternal = true,
Path = fullName,
Codec = Path.GetExtension(fullName).ToLower().TrimStart('.'),
Language = language
});
}
}
return streams;
}
/// <summary>
/// The dummy chapter duration
/// </summary>
private readonly long _dummyChapterDuration = TimeSpan.FromMinutes(5).Ticks;
/// <summary>
/// Adds the dummy chapters.
/// </summary>
/// <param name="video">The video.</param>
/// <param name="chapters">The chapters.</param>
private void AddDummyChapters(Video video, List<ChapterInfo> chapters)
{
var runtime = video.RunTimeTicks ?? 0;
if (runtime < 0)
{
throw new ArgumentException(string.Format("{0} has invalid runtime of {1}", video.Name, runtime));
}
if (runtime < _dummyChapterDuration)
{
return;
}
long currentChapterTicks = 0;
var index = 1;
// Limit to 100 chapters just in case there's some incorrect metadata here
while (currentChapterTicks < runtime && index < 100)
{
chapters.Add(new ChapterInfo
{
Name = "Chapter " + index,
StartPositionTicks = currentChapterTicks
});
index++;
currentChapterTicks += _dummyChapterDuration;
}
}
/// <summary>
/// Called when [pre fetch].
/// </summary>
/// <param name="item">The item.</param>
/// <param name="mount">The mount.</param>
private void OnPreFetch(Video item, IIsoMount mount, BlurayDiscInfo blurayDiscInfo)
{
if (item.VideoType == VideoType.Iso)
{
item.IsoType = DetermineIsoType(mount);
}
if (item.VideoType == VideoType.Dvd || (item.IsoType.HasValue && item.IsoType == IsoType.Dvd))
{
FetchFromDvdLib(item, mount);
}
if (item.VideoType == VideoType.BluRay || (item.IsoType.HasValue && item.IsoType.Value == IsoType.BluRay))
{
item.PlayableStreamFileNames = blurayDiscInfo.Files.ToList();
}
}
private void ExtractTimestamp(Video video)
{
if (video.VideoType == VideoType.VideoFile)
{
if (string.Equals(video.Container, "mpeg2ts", StringComparison.OrdinalIgnoreCase) ||
string.Equals(video.Container, "m2ts", StringComparison.OrdinalIgnoreCase) ||
string.Equals(video.Container, "ts", StringComparison.OrdinalIgnoreCase))
{
try
{
video.Timestamp = GetMpegTimestamp(video.Path);
_logger.Debug("Video has {0} timestamp", video.Timestamp);
}
catch (Exception ex)
{
_logger.ErrorException("Error extracting timestamp info from {0}", ex, video.Path);
video.Timestamp = null;
}
}
}
}
private TransportStreamTimestamp GetMpegTimestamp(string path)
{
var packetBuffer = new byte['Å'];
using (var fs = _fileSystem.GetFileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
fs.Read(packetBuffer, 0, packetBuffer.Length);
}
if (packetBuffer[0] == 71)
{
return TransportStreamTimestamp.None;
}
if ((packetBuffer[4] == 71) && (packetBuffer['Ä'] == 71))
{
if ((packetBuffer[0] == 0) && (packetBuffer[1] == 0) && (packetBuffer[2] == 0) && (packetBuffer[3] == 0))
{
return TransportStreamTimestamp.Zero;
}
return TransportStreamTimestamp.Valid;
}
return TransportStreamTimestamp.None;
}
private void FetchFromDvdLib(Video item, IIsoMount mount)
{
var path = mount == null ? item.Path : mount.MountedPath;
var dvd = new Dvd(path);
var primaryTitle = dvd.Titles.OrderByDescending(GetRuntime).FirstOrDefault();
byte? titleNumber = null;
if (primaryTitle != null)
{
titleNumber = primaryTitle.VideoTitleSetNumber;
item.RunTimeTicks = GetRuntime(primaryTitle);
}
item.PlayableStreamFileNames = GetPrimaryPlaylistVobFiles(item, mount, titleNumber)
.Select(Path.GetFileName)
.ToList();
}
private long GetRuntime(Title title)
{
return title.ProgramChains
.Select(i => (TimeSpan)i.PlaybackTime)
.Select(i => i.Ticks)
.Sum();
}
/// <summary>
/// Mounts the iso if needed.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>IsoMount.</returns>
protected Task<IIsoMount> MountIsoIfNeeded(Video item, CancellationToken cancellationToken)
{
if (item.VideoType == VideoType.Iso)
{
return _isoManager.Mount(item.Path, cancellationToken);
}
return Task.FromResult<IIsoMount>(null);
}
/// <summary>
/// Determines the type of the iso.
/// </summary>
/// <param name="isoMount">The iso mount.</param>
/// <returns>System.Nullable{IsoType}.</returns>
private IsoType? DetermineIsoType(IIsoMount isoMount)
{
var folders = Directory.EnumerateDirectories(isoMount.MountedPath).Select(Path.GetFileName).ToList();
if (folders.Contains("video_ts", StringComparer.OrdinalIgnoreCase))
{
return IsoType.Dvd;
}
if (folders.Contains("bdmv", StringComparer.OrdinalIgnoreCase))
{
return IsoType.BluRay;
}
return null;
}
private IEnumerable<string> GetPrimaryPlaylistVobFiles(Video video, IIsoMount isoMount, uint? titleNumber)
{
// min size 300 mb
const long minPlayableSize = 314572800;
var root = isoMount != null ? isoMount.MountedPath : video.Path;
// Try to eliminate menus and intros by skipping all files at the front of the list that are less than the minimum size
// Once we reach a file that is at least the minimum, return all subsequent ones
var allVobs = new DirectoryInfo(root).EnumerateFiles("*", SearchOption.AllDirectories)
.Where(file => string.Equals(file.Extension, ".vob", StringComparison.OrdinalIgnoreCase))
.OrderBy(i => i.FullName)
.ToList();
// If we didn't find any satisfying the min length, just take them all
if (allVobs.Count == 0)
{
_logger.Error("No vobs found in dvd structure.");
return new List<string>();
}
if (titleNumber.HasValue)
{
var prefix = string.Format("VTS_0{0}_", titleNumber.Value.ToString(_usCulture));
var vobs = allVobs.Where(i => i.Name.StartsWith(prefix, StringComparison.OrdinalIgnoreCase)).ToList();
if (vobs.Count > 0)
{
var minSizeVobs = vobs
.SkipWhile(f => f.Length < minPlayableSize)
.ToList();
return minSizeVobs.Count == 0 ? vobs.Select(i => i.FullName) : minSizeVobs.Select(i => i.FullName);
}
_logger.Debug("Could not determine vob file list for {0} using DvdLib. Will scan using file sizes.", video.Path);
}
var files = allVobs
.SkipWhile(f => f.Length < minPlayableSize)
.ToList();
// If we didn't find any satisfying the min length, just take them all
if (files.Count == 0)
{
_logger.Warn("Vob size filter resulted in zero matches. Taking all vobs.");
files = allVobs;
}
// Assuming they're named "vts_05_01", take all files whose second part matches that of the first file
if (files.Count > 0)
{
var parts = Path.GetFileNameWithoutExtension(files[0].FullName).Split('_');
if (parts.Length == 3)
{
var title = parts[1];
files = files.TakeWhile(f =>
{
var fileParts = Path.GetFileNameWithoutExtension(f.FullName).Split('_');
return fileParts.Length == 3 && string.Equals(title, fileParts[1], StringComparison.OrdinalIgnoreCase);
}).ToList();
// If this resulted in not getting any vobs, just take them all
if (files.Count == 0)
{
_logger.Warn("Vob filename filter resulted in zero matches. Taking all vobs.");
files = allVobs;
}
}
}
return files.Select(i => i.FullName);
}
}
}