Revert "Remove DvdLib (#9068)"

This reverts commit db1913b08fac0749133634efebd1ee7a7876147a.

5 files changed, 398 insertions, 0 deletions

diff --git a/MediaBrowser.MediaEncoding/BdInfo/BdInfoDirectoryInfo.cs b/MediaBrowser.MediaEncoding/BdInfo/BdInfoDirectoryInfo.cs
new file mode 100644
index 000000000..7e026b42e
--- /dev/null
+++ b/MediaBrowser.MediaEncoding/BdInfo/BdInfoDirectoryInfo.cs
@@ -0,0 +1,83 @@
+#pragma warning disable CS1591
+
+using System;
+using System.Linq;
+using BDInfo.IO;
+using MediaBrowser.Model.IO;
+
+namespace MediaBrowser.MediaEncoding.BdInfo
+{
+    public class BdInfoDirectoryInfo : IDirectoryInfo
+    {
+        private readonly IFileSystem _fileSystem;
+
+        private readonly FileSystemMetadata _impl;
+
+        public BdInfoDirectoryInfo(IFileSystem fileSystem, string path)
+        {
+            _fileSystem = fileSystem;
+            _impl = _fileSystem.GetDirectoryInfo(path);
+        }
+
+        private BdInfoDirectoryInfo(IFileSystem fileSystem, FileSystemMetadata impl)
+        {
+            _fileSystem = fileSystem;
+            _impl = impl;
+        }
+
+        public string Name => _impl.Name;
+
+        public string FullName => _impl.FullName;
+
+        public IDirectoryInfo? Parent
+        {
+            get
+            {
+                var parentFolder = System.IO.Path.GetDirectoryName(_impl.FullName);
+                if (parentFolder is not null)
+                {
+                    return new BdInfoDirectoryInfo(_fileSystem, parentFolder);
+                }
+
+                return null;
+            }
+        }
+
+        public IDirectoryInfo[] GetDirectories()
+        {
+            return Array.ConvertAll(
+                _fileSystem.GetDirectories(_impl.FullName).ToArray(),
+                x => new BdInfoDirectoryInfo(_fileSystem, x));
+        }
+
+        public IFileInfo[] GetFiles()
+        {
+            return Array.ConvertAll(
+                _fileSystem.GetFiles(_impl.FullName).ToArray(),
+                x => new BdInfoFileInfo(x));
+        }
+
+        public IFileInfo[] GetFiles(string searchPattern)
+        {
+            return Array.ConvertAll(
+                _fileSystem.GetFiles(_impl.FullName, new[] { searchPattern }, false, false).ToArray(),
+                x => new BdInfoFileInfo(x));
+        }
+
+        public IFileInfo[] GetFiles(string searchPattern, System.IO.SearchOption searchOption)
+        {
+            return Array.ConvertAll(
+                _fileSystem.GetFiles(
+                    _impl.FullName,
+                    new[] { searchPattern },
+                    false,
+                    (searchOption & System.IO.SearchOption.AllDirectories) == System.IO.SearchOption.AllDirectories).ToArray(),
+                x => new BdInfoFileInfo(x));
+        }
+
+        public static IDirectoryInfo FromFileSystemPath(IFileSystem fs, string path)
+        {
+            return new BdInfoDirectoryInfo(fs, path);
+        }
+    }
+}
diff --git a/MediaBrowser.MediaEncoding/BdInfo/BdInfoExaminer.cs b/MediaBrowser.MediaEncoding/BdInfo/BdInfoExaminer.cs
new file mode 100644
index 000000000..3e53cbf29
--- /dev/null
+++ b/MediaBrowser.MediaEncoding/BdInfo/BdInfoExaminer.cs
@@ -0,0 +1,194 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using BDInfo;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.MediaInfo;
+
+namespace MediaBrowser.MediaEncoding.BdInfo
+{
+    /// <summary>
+    /// Class BdInfoExaminer.
+    /// </summary>
+    public class BdInfoExaminer : IBlurayExaminer
+    {
+        private readonly IFileSystem _fileSystem;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BdInfoExaminer" /> class.
+        /// </summary>
+        /// <param name="fileSystem">The filesystem.</param>
+        public BdInfoExaminer(IFileSystem fileSystem)
+        {
+            _fileSystem = fileSystem;
+        }
+
+        /// <summary>
+        /// Gets the disc info.
+        /// </summary>
+        /// <param name="path">The path.</param>
+        /// <returns>BlurayDiscInfo.</returns>
+        public BlurayDiscInfo GetDiscInfo(string path)
+        {
+            if (string.IsNullOrWhiteSpace(path))
+            {
+                throw new ArgumentNullException(nameof(path));
+            }
+
+            var bdrom = new BDROM(BdInfoDirectoryInfo.FromFileSystemPath(_fileSystem, path));
+
+            bdrom.Scan();
+
+            // Get the longest playlist
+            var playlist = bdrom.PlaylistFiles.Values.OrderByDescending(p => p.TotalLength).FirstOrDefault(p => p.IsValid);
+
+            var outputStream = new BlurayDiscInfo
+            {
+                MediaStreams = Array.Empty<MediaStream>()
+            };
+
+            if (playlist is null)
+            {
+                return outputStream;
+            }
+
+            outputStream.Chapters = playlist.Chapters.ToArray();
+
+            outputStream.RunTimeTicks = TimeSpan.FromSeconds(playlist.TotalLength).Ticks;
+
+            var mediaStreams = new List<MediaStream>();
+
+            foreach (var stream in playlist.SortedStreams)
+            {
+                if (stream is TSVideoStream videoStream)
+                {
+                    AddVideoStream(mediaStreams, videoStream);
+                    continue;
+                }
+
+                if (stream is TSAudioStream audioStream)
+                {
+                    AddAudioStream(mediaStreams, audioStream);
+                    continue;
+                }
+
+                if (stream is TSTextStream textStream)
+                {
+                    AddSubtitleStream(mediaStreams, textStream);
+                    continue;
+                }
+
+                if (stream is TSGraphicsStream graphicsStream)
+                {
+                    AddSubtitleStream(mediaStreams, graphicsStream);
+                }
+            }
+
+            outputStream.MediaStreams = mediaStreams.ToArray();
+
+            outputStream.PlaylistName = playlist.Name;
+
+            if (playlist.StreamClips is not null && playlist.StreamClips.Any())
+            {
+                // Get the files in the playlist
+                outputStream.Files = playlist.StreamClips.Select(i => i.StreamFile.Name).ToArray();
+            }
+
+            return outputStream;
+        }
+
+        /// <summary>
+        /// Adds the video stream.
+        /// </summary>
+        /// <param name="streams">The streams.</param>
+        /// <param name="videoStream">The video stream.</param>
+        private void AddVideoStream(List<MediaStream> streams, TSVideoStream videoStream)
+        {
+            var mediaStream = new MediaStream
+            {
+                BitRate = Convert.ToInt32(videoStream.BitRate),
+                Width = videoStream.Width,
+                Height = videoStream.Height,
+                Codec = videoStream.CodecShortName,
+                IsInterlaced = videoStream.IsInterlaced,
+                Type = MediaStreamType.Video,
+                Index = streams.Count
+            };
+
+            if (videoStream.FrameRateDenominator > 0)
+            {
+                float frameRateEnumerator = videoStream.FrameRateEnumerator;
+                float frameRateDenominator = videoStream.FrameRateDenominator;
+
+                mediaStream.AverageFrameRate = mediaStream.RealFrameRate = frameRateEnumerator / frameRateDenominator;
+            }
+
+            streams.Add(mediaStream);
+        }
+
+        /// <summary>
+        /// Adds the audio stream.
+        /// </summary>
+        /// <param name="streams">The streams.</param>
+        /// <param name="audioStream">The audio stream.</param>
+        private void AddAudioStream(List<MediaStream> streams, TSAudioStream audioStream)
+        {
+            var stream = new MediaStream
+            {
+                Codec = audioStream.CodecShortName,
+                Language = audioStream.LanguageCode,
+                Channels = audioStream.ChannelCount,
+                SampleRate = audioStream.SampleRate,
+                Type = MediaStreamType.Audio,
+                Index = streams.Count
+            };
+
+            var bitrate = Convert.ToInt32(audioStream.BitRate);
+
+            if (bitrate > 0)
+            {
+                stream.BitRate = bitrate;
+            }
+
+            if (audioStream.LFE > 0)
+            {
+                stream.Channels = audioStream.ChannelCount + 1;
+            }
+
+            streams.Add(stream);
+        }
+
+        /// <summary>
+        /// Adds the subtitle stream.
+        /// </summary>
+        /// <param name="streams">The streams.</param>
+        /// <param name="textStream">The text stream.</param>
+        private void AddSubtitleStream(List<MediaStream> streams, TSTextStream textStream)
+        {
+            streams.Add(new MediaStream
+            {
+                Language = textStream.LanguageCode,
+                Codec = textStream.CodecShortName,
+                Type = MediaStreamType.Subtitle,
+                Index = streams.Count
+            });
+        }
+
+        /// <summary>
+        /// Adds the subtitle stream.
+        /// </summary>
+        /// <param name="streams">The streams.</param>
+        /// <param name="textStream">The text stream.</param>
+        private void AddSubtitleStream(List<MediaStream> streams, TSGraphicsStream textStream)
+        {
+            streams.Add(new MediaStream
+            {
+                Language = textStream.LanguageCode,
+                Codec = textStream.CodecShortName,
+                Type = MediaStreamType.Subtitle,
+                Index = streams.Count
+            });
+        }
+    }
+}
diff --git a/MediaBrowser.MediaEncoding/BdInfo/BdInfoFileInfo.cs b/MediaBrowser.MediaEncoding/BdInfo/BdInfoFileInfo.cs
new file mode 100644
index 000000000..d55688e3d
--- /dev/null
+++ b/MediaBrowser.MediaEncoding/BdInfo/BdInfoFileInfo.cs
@@ -0,0 +1,41 @@
+#pragma warning disable CS1591
+
+using System.IO;
+using MediaBrowser.Model.IO;
+
+namespace MediaBrowser.MediaEncoding.BdInfo
+{
+    public class BdInfoFileInfo : BDInfo.IO.IFileInfo
+    {
+        private FileSystemMetadata _impl;
+
+        public BdInfoFileInfo(FileSystemMetadata impl)
+        {
+            _impl = impl;
+        }
+
+        public string Name => _impl.Name;
+
+        public string FullName => _impl.FullName;
+
+        public string Extension => _impl.Extension;
+
+        public long Length => _impl.Length;
+
+        public bool IsDir => _impl.IsDirectory;
+
+        public Stream OpenRead()
+        {
+            return new FileStream(
+                FullName,
+                FileMode.Open,
+                FileAccess.Read,
+                FileShare.Read);
+        }
+
+        public StreamReader OpenText()
+        {
+            return new StreamReader(OpenRead());
+        }
+    }
+}
diff --git a/MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs b/MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs
index cef02d5f8..4a795625d 100644
--- a/MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs
+++ b/MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs
@@ -865,6 +865,85 @@ namespace MediaBrowser.MediaEncoding.Encoder
             throw new NotImplementedException();
         }
 
+        /// <inheritdoc />
+        public IEnumerable<string> GetPrimaryPlaylistVobFiles(string path, uint? titleNumber)
+        {
+            // min size 300 mb
+            const long MinPlayableSize = 314572800;
+
+            // 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 = _fileSystem.GetFiles(path, true)
+                .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.LogWarning("No vobs found in dvd structure.");
+                return Enumerable.Empty<string>();
+            }
+
+            if (titleNumber.HasValue)
+            {
+                var prefix = string.Format(
+                    CultureInfo.InvariantCulture,
+                    titleNumber.Value >= 10 ? "VTS_{0}_" : "VTS_0{0}_",
+                    titleNumber.Value);
+                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.LogWarning("Could not determine vob file list for {Path} using DvdLib. Will scan using file sizes.", 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.LogWarning("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 = _fileSystem.GetFileNameWithoutExtension(files[0]).Split('_');
+
+                if (parts.Length == 3)
+                {
+                    var title = parts[1];
+
+                    files = files.TakeWhile(f =>
+                    {
+                        var fileParts = _fileSystem.GetFileNameWithoutExtension(f).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.LogWarning("Vob filename filter resulted in zero matches. Taking all vobs.");
+                        files = allVobs;
+                    }
+                }
+            }
+
+            return files.Select(i => i.FullName);
+        }
+
         public bool CanExtractSubtitles(string codec)
         {
             // TODO is there ever a case when a subtitle can't be extracted??
diff --git a/MediaBrowser.MediaEncoding/MediaBrowser.MediaEncoding.csproj b/MediaBrowser.MediaEncoding/MediaBrowser.MediaEncoding.csproj
index f4438fe19..a0624fe76 100644
--- a/MediaBrowser.MediaEncoding/MediaBrowser.MediaEncoding.csproj
+++ b/MediaBrowser.MediaEncoding/MediaBrowser.MediaEncoding.csproj
@@ -22,6 +22,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="BDInfo" />
     <PackageReference Include="libse" />
     <PackageReference Include="Microsoft.Extensions.Http" />
     <PackageReference Include="System.Text.Encoding.CodePages" />