improve direct play of live streams

1 files changed, 882 insertions, 0 deletions

diff --git a/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
new file mode 100644
index 000000000..48e8b6ee2
--- /dev/null
+++ b/MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs
@@ -0,0 +1,882 @@
+using MediaBrowser.Common.IO;
+using MediaBrowser.MediaInfo;
+using MediaBrowser.Model.Dto;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.Extensions;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using MediaBrowser.Model.Logging;
+using MediaBrowser.Model.MediaInfo;
+
+namespace MediaBrowser.MediaEncoding.Probing
+{
+    public class ProbeResultNormalizer
+    {
+        private readonly CultureInfo _usCulture = new CultureInfo("en-US");
+        private readonly ILogger _logger;
+        private readonly IFileSystem _fileSystem;
+
+        public ProbeResultNormalizer(ILogger logger, IFileSystem fileSystem)
+        {
+            _logger = logger;
+            _fileSystem = fileSystem;
+        }
+
+        public Model.Entities.MediaInfo GetMediaInfo(InternalMediaInfoResult data, bool isAudio, string path, MediaProtocol protocol)
+        {
+            var info = new Model.Entities.MediaInfo
+            {
+                Path = path,
+                Protocol = protocol
+            };
+
+            FFProbeHelpers.NormalizeFFProbeResult(data);
+            SetSize(data, info);
+
+            var internalStreams = data.streams ?? new MediaStreamInfo[] { };
+
+            info.MediaStreams = internalStreams.Select(s => GetMediaStream(s, data.format))
+                .Where(i => i != null)
+                .ToList();
+
+            if (data.format != null)
+            {
+                info.Container = data.format.format_name;
+
+                if (!string.IsNullOrEmpty(data.format.bit_rate))
+                {
+                    info.Bitrate = int.Parse(data.format.bit_rate, _usCulture);
+                }
+            }
+
+            if (isAudio)
+            {
+                SetAudioRuntimeTicks(data, info);
+
+                if (data.format != null && data.format.tags != null)
+                {
+                    SetAudioInfoFromTags(info, data.format.tags);
+                }
+            }
+            else
+            {
+                FetchWtvInfo(info, data);
+
+                if (data.Chapters != null)
+                {
+                    info.Chapters = data.Chapters.Select(GetChapterInfo).ToList();
+                }
+
+                ExtractTimestamp(info);
+
+                var videoStream = info.MediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
+
+                if (videoStream != null)
+                {
+                    UpdateFromMediaInfo(info, videoStream);
+                }
+            }
+
+            return info;
+        }
+
+        /// <summary>
+        /// Converts ffprobe stream info to our MediaStream class
+        /// </summary>
+        /// <param name="streamInfo">The stream info.</param>
+        /// <param name="formatInfo">The format info.</param>
+        /// <returns>MediaStream.</returns>
+        private MediaStream GetMediaStream(MediaStreamInfo streamInfo, MediaFormatInfo formatInfo)
+        {
+            var stream = new MediaStream
+            {
+                Codec = streamInfo.codec_name,
+                Profile = streamInfo.profile,
+                Level = streamInfo.level,
+                Index = streamInfo.index,
+                PixelFormat = streamInfo.pix_fmt
+            };
+
+            if (streamInfo.tags != null)
+            {
+                stream.Language = GetDictionaryValue(streamInfo.tags, "language");
+            }
+
+            if (string.Equals(streamInfo.codec_type, "audio", StringComparison.OrdinalIgnoreCase))
+            {
+                stream.Type = MediaStreamType.Audio;
+
+                stream.Channels = streamInfo.channels;
+
+                if (!string.IsNullOrEmpty(streamInfo.sample_rate))
+                {
+                    stream.SampleRate = int.Parse(streamInfo.sample_rate, _usCulture);
+                }
+
+                stream.ChannelLayout = ParseChannelLayout(streamInfo.channel_layout);
+            }
+            else if (string.Equals(streamInfo.codec_type, "subtitle", StringComparison.OrdinalIgnoreCase))
+            {
+                stream.Type = MediaStreamType.Subtitle;
+            }
+            else if (string.Equals(streamInfo.codec_type, "video", StringComparison.OrdinalIgnoreCase))
+            {
+                stream.Type = (streamInfo.codec_name ?? string.Empty).IndexOf("mjpeg", StringComparison.OrdinalIgnoreCase) != -1
+                    ? MediaStreamType.EmbeddedImage
+                    : MediaStreamType.Video;
+
+                stream.Width = streamInfo.width;
+                stream.Height = streamInfo.height;
+                stream.AspectRatio = GetAspectRatio(streamInfo);
+
+                stream.AverageFrameRate = GetFrameRate(streamInfo.avg_frame_rate);
+                stream.RealFrameRate = GetFrameRate(streamInfo.r_frame_rate);
+
+                stream.BitDepth = GetBitDepth(stream.PixelFormat);
+
+                //stream.IsAnamorphic = string.Equals(streamInfo.sample_aspect_ratio, "0:1", StringComparison.OrdinalIgnoreCase) ||
+                //    string.Equals(stream.AspectRatio, "2.35:1", StringComparison.OrdinalIgnoreCase) ||
+                //    string.Equals(stream.AspectRatio, "2.40:1", StringComparison.OrdinalIgnoreCase);
+
+                stream.IsAnamorphic = string.Equals(streamInfo.sample_aspect_ratio, "0:1", StringComparison.OrdinalIgnoreCase);
+            }
+            else
+            {
+                return null;
+            }
+
+            // Get stream bitrate
+            var bitrate = 0;
+
+            if (!string.IsNullOrEmpty(streamInfo.bit_rate))
+            {
+                bitrate = int.Parse(streamInfo.bit_rate, _usCulture);
+            }
+            else if (formatInfo != null && !string.IsNullOrEmpty(formatInfo.bit_rate) && stream.Type == MediaStreamType.Video)
+            {
+                // If the stream info doesn't have a bitrate get the value from the media format info
+                bitrate = int.Parse(formatInfo.bit_rate, _usCulture);
+            }
+
+            if (bitrate > 0)
+            {
+                stream.BitRate = bitrate;
+            }
+
+            if (streamInfo.disposition != null)
+            {
+                var isDefault = GetDictionaryValue(streamInfo.disposition, "default");
+                var isForced = GetDictionaryValue(streamInfo.disposition, "forced");
+
+                stream.IsDefault = string.Equals(isDefault, "1", StringComparison.OrdinalIgnoreCase);
+
+                stream.IsForced = string.Equals(isForced, "1", StringComparison.OrdinalIgnoreCase);
+            }
+
+            return stream;
+        }
+
+        private int? GetBitDepth(string pixelFormat)
+        {
+            var eightBit = new List<string>
+            {
+                "yuv420p",
+                "yuv411p",
+                "yuvj420p",
+                "uyyvyy411",
+                "nv12",
+                "nv21",
+                "rgb444le",
+                "rgb444be",
+                "bgr444le",
+                "bgr444be",
+                "yuvj411p"            
+            };
+
+            if (!string.IsNullOrEmpty(pixelFormat))
+            {
+                if (eightBit.Contains(pixelFormat, StringComparer.OrdinalIgnoreCase))
+                {
+                    return 8;
+                }
+            }
+
+            return null;
+        }
+
+        /// <summary>
+        /// Gets a string from an FFProbeResult tags dictionary
+        /// </summary>
+        /// <param name="tags">The tags.</param>
+        /// <param name="key">The key.</param>
+        /// <returns>System.String.</returns>
+        private string GetDictionaryValue(Dictionary<string, string> tags, string key)
+        {
+            if (tags == null)
+            {
+                return null;
+            }
+
+            string val;
+
+            tags.TryGetValue(key, out val);
+            return val;
+        }
+
+        private string ParseChannelLayout(string input)
+        {
+            if (string.IsNullOrEmpty(input))
+            {
+                return input;
+            }
+
+            return input.Split('(').FirstOrDefault();
+        }
+
+        private string GetAspectRatio(MediaStreamInfo info)
+        {
+            var original = info.display_aspect_ratio;
+
+            int height;
+            int width;
+
+            var parts = (original ?? string.Empty).Split(':');
+            if (!(parts.Length == 2 &&
+                int.TryParse(parts[0], NumberStyles.Any, _usCulture, out width) &&
+                int.TryParse(parts[1], NumberStyles.Any, _usCulture, out height) &&
+                width > 0 &&
+                height > 0))
+            {
+                width = info.width;
+                height = info.height;
+            }
+
+            if (width > 0 && height > 0)
+            {
+                double ratio = width;
+                ratio /= height;
+
+                if (IsClose(ratio, 1.777777778, .03))
+                {
+                    return "16:9";
+                }
+
+                if (IsClose(ratio, 1.3333333333, .05))
+                {
+                    return "4:3";
+                }
+
+                if (IsClose(ratio, 1.41))
+                {
+                    return "1.41:1";
+                }
+
+                if (IsClose(ratio, 1.5))
+                {
+                    return "1.5:1";
+                }
+
+                if (IsClose(ratio, 1.6))
+                {
+                    return "1.6:1";
+                }
+
+                if (IsClose(ratio, 1.66666666667))
+                {
+                    return "5:3";
+                }
+
+                if (IsClose(ratio, 1.85, .02))
+                {
+                    return "1.85:1";
+                }
+
+                if (IsClose(ratio, 2.35, .025))
+                {
+                    return "2.35:1";
+                }
+
+                if (IsClose(ratio, 2.4, .025))
+                {
+                    return "2.40:1";
+                }
+            }
+
+            return original;
+        }
+
+        private bool IsClose(double d1, double d2, double variance = .005)
+        {
+            return Math.Abs(d1 - d2) <= variance;
+        }
+
+        /// <summary>
+        /// Gets a frame rate from a string value in ffprobe output
+        /// This could be a number or in the format of 2997/125.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns>System.Nullable{System.Single}.</returns>
+        private float? GetFrameRate(string value)
+        {
+            if (!string.IsNullOrEmpty(value))
+            {
+                var parts = value.Split('/');
+
+                float result;
+
+                if (parts.Length == 2)
+                {
+                    result = float.Parse(parts[0], _usCulture) / float.Parse(parts[1], _usCulture);
+                }
+                else
+                {
+                    result = float.Parse(parts[0], _usCulture);
+                }
+
+                return float.IsNaN(result) ? (float?)null : result;
+            }
+
+            return null;
+        }
+
+        private void SetAudioRuntimeTicks(InternalMediaInfoResult result, Model.Entities.MediaInfo data)
+        {
+            if (result.streams != null)
+            {
+                // Get the first audio stream
+                var stream = result.streams.FirstOrDefault(s => string.Equals(s.codec_type, "audio", StringComparison.OrdinalIgnoreCase));
+
+                if (stream != null)
+                {
+                    // Get duration from stream properties
+                    var duration = stream.duration;
+
+                    // If it's not there go into format properties
+                    if (string.IsNullOrEmpty(duration))
+                    {
+                        duration = result.format.duration;
+                    }
+
+                    // If we got something, parse it
+                    if (!string.IsNullOrEmpty(duration))
+                    {
+                        data.RunTimeTicks = TimeSpan.FromSeconds(double.Parse(duration, _usCulture)).Ticks;
+                    }
+                }
+            }
+        }
+
+        private void SetSize(InternalMediaInfoResult data, Model.Entities.MediaInfo info)
+        {
+            if (data.format != null)
+            {
+                if (!string.IsNullOrEmpty(data.format.size))
+                {
+                    info.Size = long.Parse(data.format.size, _usCulture);
+                }
+                else
+                {
+                    info.Size = null;
+                }
+            }
+        }
+
+        private void SetAudioInfoFromTags(Model.Entities.MediaInfo audio, Dictionary<string, string> tags)
+        {
+            var title = FFProbeHelpers.GetDictionaryValue(tags, "title");
+
+            // Only set Name if title was found in the dictionary
+            if (!string.IsNullOrEmpty(title))
+            {
+                audio.Title = title;
+            }
+
+            var composer = FFProbeHelpers.GetDictionaryValue(tags, "composer");
+
+            if (!string.IsNullOrWhiteSpace(composer))
+            {
+                foreach (var person in Split(composer, false))
+                {
+                    audio.People.Add(new BaseItemPerson { Name = person, Type = PersonType.Composer });
+                }
+            }
+
+            audio.Album = FFProbeHelpers.GetDictionaryValue(tags, "album");
+
+            var artists = FFProbeHelpers.GetDictionaryValue(tags, "artists");
+
+            if (!string.IsNullOrWhiteSpace(artists))
+            {
+                audio.Artists = artists.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries)
+                    .Distinct(StringComparer.OrdinalIgnoreCase)
+                    .ToList();
+            }
+            else
+            {
+                var artist = FFProbeHelpers.GetDictionaryValue(tags, "artist");
+                if (string.IsNullOrWhiteSpace(artist))
+                {
+                    audio.Artists.Clear();
+                }
+                else
+                {
+                    audio.Artists = SplitArtists(artist)
+                        .Distinct(StringComparer.OrdinalIgnoreCase)
+                        .ToList();
+                }
+            }
+
+            var albumArtist = FFProbeHelpers.GetDictionaryValue(tags, "albumartist");
+            if (string.IsNullOrWhiteSpace(albumArtist))
+            {
+                albumArtist = FFProbeHelpers.GetDictionaryValue(tags, "album artist");
+            }
+            if (string.IsNullOrWhiteSpace(albumArtist))
+            {
+                albumArtist = FFProbeHelpers.GetDictionaryValue(tags, "album_artist");
+            }
+
+            if (string.IsNullOrWhiteSpace(albumArtist))
+            {
+                audio.AlbumArtists = new List<string>();
+            }
+            else
+            {
+                audio.AlbumArtists = SplitArtists(albumArtist)
+                    .Distinct(StringComparer.OrdinalIgnoreCase)
+                    .ToList();
+
+            }
+
+            // Track number
+            audio.IndexNumber = GetDictionaryDiscValue(tags, "track");
+
+            // Disc number
+            audio.ParentIndexNumber = GetDictionaryDiscValue(tags, "disc");
+
+            audio.ProductionYear = FFProbeHelpers.GetDictionaryNumericValue(tags, "date");
+
+            // Several different forms of retaildate
+            audio.PremiereDate = FFProbeHelpers.GetDictionaryDateTime(tags, "retaildate") ??
+                FFProbeHelpers.GetDictionaryDateTime(tags, "retail date") ??
+                FFProbeHelpers.GetDictionaryDateTime(tags, "retail_date") ??
+                FFProbeHelpers.GetDictionaryDateTime(tags, "date");
+
+            // If we don't have a ProductionYear try and get it from PremiereDate
+            if (audio.PremiereDate.HasValue && !audio.ProductionYear.HasValue)
+            {
+                audio.ProductionYear = audio.PremiereDate.Value.ToLocalTime().Year;
+            }
+
+            FetchGenres(audio, tags);
+
+            // There's several values in tags may or may not be present
+            FetchStudios(audio, tags, "organization");
+            FetchStudios(audio, tags, "ensemble");
+            FetchStudios(audio, tags, "publisher");
+
+            // These support mulitple values, but for now we only store the first.
+            audio.SetProviderId(MetadataProviders.MusicBrainzAlbumArtist, GetMultipleMusicBrainzId(FFProbeHelpers.GetDictionaryValue(tags, "MusicBrainz Album Artist Id")));
+            audio.SetProviderId(MetadataProviders.MusicBrainzArtist, GetMultipleMusicBrainzId(FFProbeHelpers.GetDictionaryValue(tags, "MusicBrainz Artist Id")));
+
+            audio.SetProviderId(MetadataProviders.MusicBrainzAlbum, GetMultipleMusicBrainzId(FFProbeHelpers.GetDictionaryValue(tags, "MusicBrainz Album Id")));
+            audio.SetProviderId(MetadataProviders.MusicBrainzReleaseGroup, GetMultipleMusicBrainzId(FFProbeHelpers.GetDictionaryValue(tags, "MusicBrainz Release Group Id")));
+            audio.SetProviderId(MetadataProviders.MusicBrainzTrack, GetMultipleMusicBrainzId(FFProbeHelpers.GetDictionaryValue(tags, "MusicBrainz Release Track Id")));
+        }
+
+        private string GetMultipleMusicBrainzId(string value)
+        {
+            if (string.IsNullOrWhiteSpace(value))
+            {
+                return null;
+            }
+
+            return value.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries)
+                .Select(i => i.Trim())
+                .FirstOrDefault(i => !string.IsNullOrWhiteSpace(i));
+        }
+
+        private readonly char[] _nameDelimiters = { '/', '|', ';', '\\' };
+
+        /// <summary>
+        /// Splits the specified val.
+        /// </summary>
+        /// <param name="val">The val.</param>
+        /// <param name="allowCommaDelimiter">if set to <c>true</c> [allow comma delimiter].</param>
+        /// <returns>System.String[][].</returns>
+        private IEnumerable<string> Split(string val, bool allowCommaDelimiter)
+        {
+            // Only use the comma as a delimeter if there are no slashes or pipes. 
+            // We want to be careful not to split names that have commas in them
+            var delimeter = !allowCommaDelimiter || _nameDelimiters.Any(i => val.IndexOf(i) != -1) ?
+                _nameDelimiters :
+                new[] { ',' };
+
+            return val.Split(delimeter, StringSplitOptions.RemoveEmptyEntries)
+                .Where(i => !string.IsNullOrWhiteSpace(i))
+                .Select(i => i.Trim());
+        }
+
+        private const string ArtistReplaceValue = " | ";
+
+        private IEnumerable<string> SplitArtists(string val)
+        {
+            val = val.Replace(" featuring ", ArtistReplaceValue, StringComparison.OrdinalIgnoreCase)
+                .Replace(" feat. ", ArtistReplaceValue, StringComparison.OrdinalIgnoreCase);
+
+            var artistsFound = new List<string>();
+
+            foreach (var whitelistArtist in GetSplitWhitelist())
+            {
+                var originalVal = val;
+                val = val.Replace(whitelistArtist, "|", StringComparison.OrdinalIgnoreCase);
+
+                if (!string.Equals(originalVal, val, StringComparison.OrdinalIgnoreCase))
+                {
+                    artistsFound.Add(whitelistArtist);
+                }
+            }
+
+            // Only use the comma as a delimeter if there are no slashes or pipes. 
+            // We want to be careful not to split names that have commas in them
+            var delimeter = _nameDelimiters;
+
+            var artists = val.Split(delimeter, StringSplitOptions.RemoveEmptyEntries)
+                .Where(i => !string.IsNullOrWhiteSpace(i))
+                .Select(i => i.Trim());
+
+            artistsFound.AddRange(artists);
+            return artistsFound;
+        }
+
+
+        private List<string> _splitWhiteList = null;
+
+        private IEnumerable<string> GetSplitWhitelist()
+        {
+            if (_splitWhiteList == null)
+            {
+                var file = GetType().Namespace + ".whitelist.txt";
+
+                using (var stream = GetType().Assembly.GetManifestResourceStream(file))
+                {
+                    using (var reader = new StreamReader(stream))
+                    {
+                        var list = new List<string>();
+
+                        while (!reader.EndOfStream)
+                        {
+                            var val = reader.ReadLine();
+
+                            if (!string.IsNullOrWhiteSpace(val))
+                            {
+                                list.Add(val);
+                            }
+                        }
+
+                        _splitWhiteList = list;
+                    }
+                }
+            }
+
+            return _splitWhiteList;
+        }
+
+        /// <summary>
+        /// Gets the studios from the tags collection
+        /// </summary>
+        /// <param name="audio">The audio.</param>
+        /// <param name="tags">The tags.</param>
+        /// <param name="tagName">Name of the tag.</param>
+        private void FetchStudios(Model.Entities.MediaInfo audio, Dictionary<string, string> tags, string tagName)
+        {
+            var val = FFProbeHelpers.GetDictionaryValue(tags, tagName);
+
+            if (!string.IsNullOrEmpty(val))
+            {
+                var studios = Split(val, true);
+
+                foreach (var studio in studios)
+                {
+                    // Sometimes the artist name is listed here, account for that
+                    if (audio.Artists.Contains(studio, StringComparer.OrdinalIgnoreCase))
+                    {
+                        continue;
+                    }
+                    if (audio.AlbumArtists.Contains(studio, StringComparer.OrdinalIgnoreCase))
+                    {
+                        continue;
+                    }
+
+                    audio.Studios.Add(studio);
+                }
+
+                audio.Studios = audio.Studios
+                    .Where(i => !string.IsNullOrWhiteSpace(i))
+                    .Distinct(StringComparer.OrdinalIgnoreCase)
+                    .ToList();
+            }
+        }
+
+        /// <summary>
+        /// Gets the genres from the tags collection
+        /// </summary>
+        /// <param name="info">The information.</param>
+        /// <param name="tags">The tags.</param>
+        private void FetchGenres(Model.Entities.MediaInfo info, Dictionary<string, string> tags)
+        {
+            var val = FFProbeHelpers.GetDictionaryValue(tags, "genre");
+
+            if (!string.IsNullOrEmpty(val))
+            {
+                foreach (var genre in Split(val, true))
+                {
+                    info.Genres.Add(genre);
+                }
+
+                info.Genres = info.Genres
+                    .Where(i => !string.IsNullOrWhiteSpace(i))
+                    .Distinct(StringComparer.OrdinalIgnoreCase)
+                    .ToList();
+            }
+        }
+
+        /// <summary>
+        /// Gets the disc number, which is sometimes can be in the form of '1', or '1/3'
+        /// </summary>
+        /// <param name="tags">The tags.</param>
+        /// <param name="tagName">Name of the tag.</param>
+        /// <returns>System.Nullable{System.Int32}.</returns>
+        private int? GetDictionaryDiscValue(Dictionary<string, string> tags, string tagName)
+        {
+            var disc = FFProbeHelpers.GetDictionaryValue(tags, tagName);
+
+            if (!string.IsNullOrEmpty(disc))
+            {
+                disc = disc.Split('/')[0];
+
+                int num;
+
+                if (int.TryParse(disc, out num))
+                {
+                    return num;
+                }
+            }
+
+            return null;
+        }
+
+        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;
+                }
+            }
+
+            // Limit accuracy to milliseconds to match xml saving
+            var secondsString = chapter.start_time;
+            double seconds;
+
+            if (double.TryParse(secondsString, NumberStyles.Any, CultureInfo.InvariantCulture, out seconds))
+            {
+                var ms = Math.Round(TimeSpan.FromSeconds(seconds).TotalMilliseconds);
+                info.StartPositionTicks = TimeSpan.FromMilliseconds(ms).Ticks;
+            }
+
+            return info;
+        }
+
+        private const int MaxSubtitleDescriptionExtractionLength = 100; // When extracting subtitles, the maximum length to consider (to avoid invalid filenames)
+
+        private void FetchWtvInfo(Model.Entities.MediaInfo video, InternalMediaInfoResult data)
+        {
+            if (data.format == null || data.format.tags == null)
+            {
+                return;
+            }
+
+            var genres = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/Genre");
+
+            if (!string.IsNullOrWhiteSpace(genres))
+            {
+                //genres = FFProbeHelpers.GetDictionaryValue(data.format.tags, "genre");
+            }
+
+            if (!string.IsNullOrWhiteSpace(genres))
+            {
+                video.Genres = genres.Split(new[] { ';', '/', ',' }, StringSplitOptions.RemoveEmptyEntries)
+                    .Where(i => !string.IsNullOrWhiteSpace(i))
+                    .Select(i => i.Trim())
+                    .ToList();
+            }
+
+            var officialRating = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/ParentalRating");
+
+            if (!string.IsNullOrWhiteSpace(officialRating))
+            {
+                video.OfficialRating = officialRating;
+            }
+
+            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 BaseItemPerson { Name = i.Trim(), Type = PersonType.Actor })
+                    .ToList();
+            }
+
+            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;
+                }
+            }
+
+            var premiereDateString = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/MediaOriginalBroadcastDateTime");
+            if (!string.IsNullOrWhiteSpace(premiereDateString))
+            {
+                DateTime val;
+
+                // Credit to MCEBuddy: https://mcebuddy2x.codeplex.com/
+                // DateTime is reported along with timezone info (typically Z i.e. UTC hence assume None)
+                if (DateTime.TryParse(year, null, DateTimeStyles.None, out val))
+                {
+                    video.PremiereDate = val.ToUniversalTime();
+                }
+            }
+
+            var description = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/SubTitleDescription");
+
+            var subTitle = FFProbeHelpers.GetDictionaryValue(data.format.tags, "WM/SubTitle");
+
+            // For below code, credit to MCEBuddy: https://mcebuddy2x.codeplex.com/
+
+            // Sometimes for TV Shows the Subtitle field is empty and the subtitle description contains the subtitle, extract if possible. See ticket https://mcebuddy2x.codeplex.com/workitem/1910
+            // The format is -> EPISODE/TOTAL_EPISODES_IN_SEASON. SUBTITLE: DESCRIPTION
+            // OR -> COMMENT. SUBTITLE: DESCRIPTION
+            // e.g. -> 4/13. The Doctor's Wife: Science fiction drama. When he follows a Time Lord distress signal, the Doctor puts Amy, Rory and his beloved TARDIS in grave danger. Also in HD. [AD,S]
+            // e.g. -> CBeebies Bedtime Hour. The Mystery: Animated adventures of two friends who live on an island in the middle of the big city. Some of Abney and Teal's favourite objects are missing. [S]
+            if (String.IsNullOrWhiteSpace(subTitle) && !String.IsNullOrWhiteSpace(description) && description.Substring(0, Math.Min(description.Length, MaxSubtitleDescriptionExtractionLength)).Contains(":")) // Check within the Subtitle size limit, otherwise from description it can get too long creating an invalid filename
+            {
+                string[] parts = description.Split(':');
+                if (parts.Length > 0)
+                {
+                    string subtitle = parts[0];
+                    try
+                    {
+                        if (subtitle.Contains("/")) // It contains a episode number and season number
+                        {
+                            string[] numbers = subtitle.Split(' ');
+                            video.IndexNumber = int.Parse(numbers[0].Replace(".", "").Split('/')[0]);
+                            int totalEpisodesInSeason = int.Parse(numbers[0].Replace(".", "").Split('/')[1]);
+
+                            description = String.Join(" ", numbers, 1, numbers.Length - 1).Trim(); // Skip the first, concatenate the rest, clean up spaces and save it
+                        }
+                        else
+                            throw new Exception(); // Switch to default parsing
+                    }
+                    catch // Default parsing
+                    {
+                        if (subtitle.Contains(".")) // skip the comment, keep the subtitle
+                            description = String.Join(".", subtitle.Split('.'), 1, subtitle.Split('.').Length - 1).Trim(); // skip the first
+                        else
+                            description = subtitle.Trim(); // Clean up whitespaces and save it
+                    }
+                }
+            }
+
+            if (!string.IsNullOrWhiteSpace(description))
+            {
+                video.Overview = description;
+            }
+        }
+
+        private void ExtractTimestamp(Model.Entities.MediaInfo 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 UpdateFromMediaInfo(MediaSourceInfo video, MediaStream videoStream)
+        {
+            if (video.VideoType == VideoType.VideoFile && video.Protocol == MediaProtocol.File)
+            {
+                if (videoStream != null)
+                {
+                    try
+                    {
+                        var result = new MediaInfoLib().GetVideoInfo(video.Path);
+
+                        videoStream.IsCabac = result.IsCabac ?? videoStream.IsCabac;
+                        videoStream.IsInterlaced = result.IsInterlaced ?? videoStream.IsInterlaced;
+                        videoStream.BitDepth = result.BitDepth ?? videoStream.BitDepth;
+                        videoStream.RefFrames = result.RefFrames;
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.ErrorException("Error running MediaInfo on {0}", ex, video.Path);
+                    }
+                }
+            }
+        }
+    }
+}