1 files changed, 187 insertions, 0 deletions
diff --git a/MediaBrowser.MediaEncoding/BdInfo/BdInfoExaminer.cs b/MediaBrowser.MediaEncoding/BdInfo/BdInfoExaminer.cs
new file mode 100644
index 000000000..8ebb59c59
--- /dev/null
+++ b/MediaBrowser.MediaEncoding/BdInfo/BdInfoExaminer.cs
@@ -0,0 +1,187 @@
+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 sortedStreams = playlist.SortedStreams;
+        var mediaStreams = new List<MediaStream>(sortedStreams.Count);
+
+        foreach (var stream in sortedStreams)
+        {
+            switch (stream)
+            {
+                case TSVideoStream videoStream:
+                    AddVideoStream(mediaStreams, videoStream);
+                    break;
+                case TSAudioStream audioStream:
+                    AddAudioStream(mediaStreams, audioStream);
+                    break;
+                case TSTextStream textStream:
+                    AddSubtitleStream(mediaStreams, textStream);
+                    break;
+                case TSGraphicsStream graphicStream:
+                    AddSubtitleStream(mediaStreams, graphicStream);
+                    break;
+            }
+        }
+
+        outputStream.MediaStreams = mediaStreams.ToArray();
+
+        outputStream.PlaylistName = playlist.Name;
+
+        if (playlist.StreamClips is not null && playlist.StreamClips.Count > 0)
+        {
+            // 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
+        });
+    }
+}