diff --git a/MediaBrowser.Controller/MediaEncoding/BaseEncodingJobOptions.cs b/MediaBrowser.Controller/MediaEncoding/BaseEncodingJobOptions.cs
index 745ee6bdb5..dd6f468dab 100644
--- a/MediaBrowser.Controller/MediaEncoding/BaseEncodingJobOptions.cs
+++ b/MediaBrowser.Controller/MediaEncoding/BaseEncodingJobOptions.cs
@@ -10,6 +10,15 @@ namespace MediaBrowser.Controller.MediaEncoding
 {
     public class BaseEncodingJobOptions
     {
+        public BaseEncodingJobOptions()
+        {
+            EnableAutoStreamCopy = true;
+            AllowVideoStreamCopy = true;
+            AllowAudioStreamCopy = true;
+            Context = EncodingContext.Streaming;
+            StreamOptions = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+        }
+
         /// <summary>
         /// Gets or sets the id.
         /// </summary>
@@ -191,14 +200,5 @@ namespace MediaBrowser.Controller.MediaEncoding
 
             return null;
         }
-
-        public BaseEncodingJobOptions()
-        {
-            EnableAutoStreamCopy = true;
-            AllowVideoStreamCopy = true;
-            AllowAudioStreamCopy = true;
-            Context = EncodingContext.Streaming;
-            StreamOptions = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
-        }
     }
 }
\ No newline at end of file
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index 257cd5df6d..9bae95a272 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -161,6 +161,9 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Gets the name of the output video codec.
         /// </summary>
+        /// <param name="state">Encording state.</param>
+        /// <param name="encodingOptions">Encoding options.</param>
+        /// <returns>Encoder string.</returns>
         public string GetVideoEncoder(EncodingJobInfo state, EncodingOptions encodingOptions)
         {
             var codec = state.OutputVideoCodec;
@@ -315,6 +318,11 @@ namespace MediaBrowser.Controller.MediaEncoding
             return container;
         }
 
+        /// <summary>
+        /// Gets decoder from a codec.
+        /// </summary>
+        /// <param name="codec">Codec to use.</param>
+        /// <returns>Decoder string.</returns>
         public string GetDecoderFromCodec(string codec)
         {
             // For these need to find out the ffmpeg names
@@ -344,6 +352,8 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Infers the audio codec based on the url.
         /// </summary>
+        /// <param name="container">Container to use.</param>
+        /// <returns>Codec string.</returns>
         public string InferAudioCodec(string container)
         {
             var ext = "." + (container ?? string.Empty);
@@ -489,6 +499,9 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Gets the input argument.
         /// </summary>
+        /// <param name="state">Encoding state.</param>
+        /// <param name="encodingOptions">Encoding options.</param>
+        /// <returns>Input arguments.</returns>
         public string GetInputArgument(EncodingJobInfo state, EncodingOptions encodingOptions)
         {
             var arg = new StringBuilder();
@@ -965,6 +978,11 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Gets the video bitrate to specify on the command line.
         /// </summary>
+        /// <param name="state">Encoding state.</param>
+        /// <param name="videoEncoder">Video encoder to use.</param>
+        /// <param name="encodingOptions">Encoding options.</param>
+        /// <param name="defaultPreset">Default present to use for encoding.</param>
+        /// <returns>Video bitrate.</returns>
         public string GetVideoQualityParam(EncodingJobInfo state, string videoEncoder, EncodingOptions encodingOptions, string defaultPreset)
         {
             var param = string.Empty;
@@ -1966,8 +1984,12 @@ namespace MediaBrowser.Controller.MediaEncoding
         }
 
         /// <summary>
-        /// Gets the graphical subtitle param.
+        /// Gets the graphical subtitle parameter.
         /// </summary>
+        /// <param name="state">Encoding state.</param>
+        /// <param name="options">Encoding options.</param>
+        /// <param name="outputVideoCodec">Video codec to use.</param>
+        /// <returns>Graphical subtitle parameter.</returns>
         public string GetGraphicalSubtitleParam(
             EncodingJobInfo state,
             EncodingOptions options,
@@ -2485,6 +2507,13 @@ namespace MediaBrowser.Controller.MediaEncoding
             return string.Format(CultureInfo.InvariantCulture, filter, widthParam, heightParam);
         }
 
+        /// <summary>
+        /// Gets the output size parameter.
+        /// </summary>
+        /// <param name="state">Encoding state.</param>
+        /// <param name="options">Encoding options.</param>
+        /// <param name="outputVideoCodec">Video codec to use.</param>
+        /// <returns>The output size parameter.</returns>
         public string GetOutputSizeParam(
             EncodingJobInfo state,
             EncodingOptions options,
@@ -2495,8 +2524,13 @@ namespace MediaBrowser.Controller.MediaEncoding
         }
 
         /// <summary>
+        /// Gets the output size parameter.
         /// If we're going to put a fixed size on the command line, this will calculate it.
         /// </summary>
+        /// <param name="state">Encoding state.</param>
+        /// <param name="options">Encoding options.</param>
+        /// <param name="outputVideoCodec">Video codec to use.</param>
+        /// <returns>The output size parameter.</returns>
         public string GetOutputSizeParamInternal(
             EncodingJobInfo state,
             EncodingOptions options,
@@ -2908,6 +2942,10 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Gets the number of threads.
         /// </summary>
+        /// <param name="state">Encoding state.</param>
+        /// <param name="encodingOptions">Encoding options.</param>
+        /// <param name="outputVideoCodec">Video codec to use.</param>
+        /// <returns>Number of threads.</returns>
 #nullable enable
         public static int GetNumberOfThreads(EncodingJobInfo? state, EncodingOptions encodingOptions, string? outputVideoCodec)
         {
@@ -3551,6 +3589,11 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Gets a hw decoder name.
         /// </summary>
+        /// <param name="options">Encoding options.</param>
+        /// <param name="decoder">Decoder to use.</param>
+        /// <param name="videoCodec">Video codec to use.</param>
+        /// <param name="isColorDepth10">Specifies if color depth 10.</param>
+        /// <returns>Hardware decoder name.</returns>
         public string GetHwDecoderName(EncodingOptions options, string decoder, string videoCodec, bool isColorDepth10)
         {
             var isCodecAvailable = _mediaEncoder.SupportsDecoder(decoder) && options.HardwareDecodingCodecs.Contains(videoCodec, StringComparer.OrdinalIgnoreCase);
@@ -3569,6 +3612,11 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Gets a hwaccel type to use as a hardware decoder(dxva/vaapi) depending on the system.
         /// </summary>
+        /// <param name="state">Encoding state.</param>
+        /// <param name="options">Encoding options.</param>
+        /// <param name="videoCodec">Video codec to use.</param>
+        /// <param name="isColorDepth10">Specifies if color depth 10.</param>
+        /// <returns>Hardware accelerator type.</returns>
         public string GetHwaccelType(EncodingJobInfo state, EncodingOptions options, string videoCodec, bool isColorDepth10)
         {
             var isWindows = OperatingSystem.IsWindows();
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs b/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
index bc0318ad7c..fa9f40d60d 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
@@ -1,6 +1,6 @@
 #nullable disable
 
-#pragma warning disable CS1591
+#pragma warning disable CS1591, SA1401
 
 using System;
 using System.Collections.Generic;
@@ -20,6 +20,44 @@ namespace MediaBrowser.Controller.MediaEncoding
     // For now, a common base class until the API and MediaEncoding classes are unified
     public class EncodingJobInfo
     {
+        public int? OutputAudioBitrate;
+        public int? OutputAudioChannels;
+
+        private TranscodeReason[] _transcodeReasons = null;
+
+        public EncodingJobInfo(TranscodingJobType jobType)
+        {
+            TranscodingType = jobType;
+            RemoteHttpHeaders = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+            SupportedAudioCodecs = Array.Empty<string>();
+            SupportedVideoCodecs = Array.Empty<string>();
+            SupportedSubtitleCodecs = Array.Empty<string>();
+        }
+
+        public TranscodeReason[] TranscodeReasons
+        {
+            get
+            {
+                if (_transcodeReasons == null)
+                {
+                    if (BaseRequest.TranscodeReasons == null)
+                    {
+                        return Array.Empty<TranscodeReason>();
+                    }
+
+                    _transcodeReasons = BaseRequest.TranscodeReasons
+                        .Split(',')
+                        .Where(i => !string.IsNullOrEmpty(i))
+                        .Select(v => (TranscodeReason)Enum.Parse(typeof(TranscodeReason), v, true))
+                        .ToArray();
+                }
+
+                return _transcodeReasons;
+            }
+        }
+
+        public IProgress<double> Progress { get; set; }
+
         public MediaStream VideoStream { get; set; }
 
         public VideoType VideoType { get; set; }
@@ -58,40 +96,6 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public string MimeType { get; set; }
 
-        public string GetMimeType(string outputPath, bool enableStreamDefault = true)
-        {
-            if (!string.IsNullOrEmpty(MimeType))
-            {
-                return MimeType;
-            }
-
-            return MimeTypes.GetMimeType(outputPath, enableStreamDefault);
-        }
-
-        private TranscodeReason[] _transcodeReasons = null;
-
-        public TranscodeReason[] TranscodeReasons
-        {
-            get
-            {
-                if (_transcodeReasons == null)
-                {
-                    if (BaseRequest.TranscodeReasons == null)
-                    {
-                        return Array.Empty<TranscodeReason>();
-                    }
-
-                    _transcodeReasons = BaseRequest.TranscodeReasons
-                        .Split(',')
-                        .Where(i => !string.IsNullOrEmpty(i))
-                        .Select(v => (TranscodeReason)Enum.Parse(typeof(TranscodeReason), v, true))
-                        .ToArray();
-                }
-
-                return _transcodeReasons;
-            }
-        }
-
         public bool IgnoreInputDts => MediaSource.IgnoreDts;
 
         public bool IgnoreInputIndex => MediaSource.IgnoreIndex;
@@ -144,196 +148,17 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public BaseEncodingJobOptions BaseRequest { get; set; }
 
-        public long? StartTimeTicks => BaseRequest.StartTimeTicks;
-
-        public bool CopyTimestamps => BaseRequest.CopyTimestamps;
-
-        public int? OutputAudioBitrate;
-        public int? OutputAudioChannels;
-
-        public bool DeInterlace(string videoCodec, bool forceDeinterlaceIfSourceIsInterlaced)
-        {
-            var videoStream = VideoStream;
-            var isInputInterlaced = videoStream != null && videoStream.IsInterlaced;
-
-            if (!isInputInterlaced)
-            {
-                return false;
-            }
-
-            // Support general param
-            if (BaseRequest.DeInterlace)
-            {
-                return true;
-            }
-
-            if (!string.IsNullOrEmpty(videoCodec))
-            {
-                if (string.Equals(BaseRequest.GetOption(videoCodec, "deinterlace"), "true", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-            }
-
-            return forceDeinterlaceIfSourceIsInterlaced && isInputInterlaced;
-        }
-
-        public string[] GetRequestedProfiles(string codec)
-        {
-            if (!string.IsNullOrEmpty(BaseRequest.Profile))
-            {
-                return BaseRequest.Profile.Split(new[] { '|', ',' }, StringSplitOptions.RemoveEmptyEntries);
-            }
-
-            if (!string.IsNullOrEmpty(codec))
-            {
-                var profile = BaseRequest.GetOption(codec, "profile");
-
-                if (!string.IsNullOrEmpty(profile))
-                {
-                    return profile.Split(new[] { '|', ',' }, StringSplitOptions.RemoveEmptyEntries);
-                }
-            }
-
-            return Array.Empty<string>();
-        }
-
-        public string GetRequestedLevel(string codec)
-        {
-            if (!string.IsNullOrEmpty(BaseRequest.Level))
-            {
-                return BaseRequest.Level;
-            }
-
-            if (!string.IsNullOrEmpty(codec))
-            {
-                return BaseRequest.GetOption(codec, "level");
-            }
-
-            return null;
-        }
-
-        public int? GetRequestedMaxRefFrames(string codec)
-        {
-            if (BaseRequest.MaxRefFrames.HasValue)
-            {
-                return BaseRequest.MaxRefFrames;
-            }
-
-            if (!string.IsNullOrEmpty(codec))
-            {
-                var value = BaseRequest.GetOption(codec, "maxrefframes");
-                if (!string.IsNullOrEmpty(value)
-                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
-                {
-                    return result;
-                }
-            }
-
-            return null;
-        }
-
-        public int? GetRequestedVideoBitDepth(string codec)
-        {
-            if (BaseRequest.MaxVideoBitDepth.HasValue)
-            {
-                return BaseRequest.MaxVideoBitDepth;
-            }
-
-            if (!string.IsNullOrEmpty(codec))
-            {
-                var value = BaseRequest.GetOption(codec, "videobitdepth");
-                if (!string.IsNullOrEmpty(value)
-                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
-                {
-                    return result;
-                }
-            }
-
-            return null;
-        }
-
-        public int? GetRequestedAudioBitDepth(string codec)
-        {
-            if (BaseRequest.MaxAudioBitDepth.HasValue)
-            {
-                return BaseRequest.MaxAudioBitDepth;
-            }
-
-            if (!string.IsNullOrEmpty(codec))
-            {
-                var value = BaseRequest.GetOption(codec, "audiobitdepth");
-                if (!string.IsNullOrEmpty(value)
-                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
-                {
-                    return result;
-                }
-            }
-
-            return null;
-        }
-
-        public int? GetRequestedAudioChannels(string codec)
-        {
-            if (!string.IsNullOrEmpty(codec))
-            {
-                var value = BaseRequest.GetOption(codec, "audiochannels");
-                if (!string.IsNullOrEmpty(value)
-                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
-                {
-                    return result;
-                }
-            }
-
-            if (BaseRequest.MaxAudioChannels.HasValue)
-            {
-                return BaseRequest.MaxAudioChannels;
-            }
-
-            if (BaseRequest.AudioChannels.HasValue)
-            {
-                return BaseRequest.AudioChannels;
-            }
-
-            if (BaseRequest.TranscodingMaxAudioChannels.HasValue)
-            {
-                return BaseRequest.TranscodingMaxAudioChannels;
-            }
-
-            return null;
-        }
-
         public bool IsVideoRequest { get; set; }
 
         public TranscodingJobType TranscodingType { get; set; }
 
-        public EncodingJobInfo(TranscodingJobType jobType)
-        {
-            TranscodingType = jobType;
-            RemoteHttpHeaders = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
-            SupportedAudioCodecs = Array.Empty<string>();
-            SupportedVideoCodecs = Array.Empty<string>();
-            SupportedSubtitleCodecs = Array.Empty<string>();
-        }
+        public long? StartTimeTicks => BaseRequest.StartTimeTicks;
+
+        public bool CopyTimestamps => BaseRequest.CopyTimestamps;
 
         public bool IsSegmentedLiveStream
             => TranscodingType != TranscodingJobType.Progressive && !RunTimeTicks.HasValue;
 
-        public bool EnableBreakOnNonKeyFrames(string videoCodec)
-        {
-            if (TranscodingType != TranscodingJobType.Progressive)
-            {
-                if (IsSegmentedLiveStream)
-                {
-                    return false;
-                }
-
-                return BaseRequest.BreakOnNonKeyFrames && EncodingHelper.IsCopyCodec(videoCodec);
-            }
-
-            return false;
-        }
-
         public int? TotalOutputBitrate => (OutputAudioBitrate ?? 0) + (OutputVideoBitrate ?? 0);
 
         public int? OutputWidth
@@ -682,6 +507,21 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public int HlsListSize => 0;
 
+        public bool EnableBreakOnNonKeyFrames(string videoCodec)
+        {
+            if (TranscodingType != TranscodingJobType.Progressive)
+            {
+                if (IsSegmentedLiveStream)
+                {
+                    return false;
+                }
+
+                return BaseRequest.BreakOnNonKeyFrames && EncodingHelper.IsCopyCodec(videoCodec);
+            }
+
+            return false;
+        }
+
         private int? GetMediaStreamCount(MediaStreamType type, int limit)
         {
             var count = MediaSource.GetStreamCount(type);
@@ -694,7 +534,167 @@ namespace MediaBrowser.Controller.MediaEncoding
             return count;
         }
 
-        public IProgress<double> Progress { get; set; }
+        public string GetMimeType(string outputPath, bool enableStreamDefault = true)
+        {
+            if (!string.IsNullOrEmpty(MimeType))
+            {
+                return MimeType;
+            }
+
+            return MimeTypes.GetMimeType(outputPath, enableStreamDefault);
+        }
+
+        public bool DeInterlace(string videoCodec, bool forceDeinterlaceIfSourceIsInterlaced)
+        {
+            var videoStream = VideoStream;
+            var isInputInterlaced = videoStream != null && videoStream.IsInterlaced;
+
+            if (!isInputInterlaced)
+            {
+                return false;
+            }
+
+            // Support general param
+            if (BaseRequest.DeInterlace)
+            {
+                return true;
+            }
+
+            if (!string.IsNullOrEmpty(videoCodec))
+            {
+                if (string.Equals(BaseRequest.GetOption(videoCodec, "deinterlace"), "true", StringComparison.OrdinalIgnoreCase))
+                {
+                    return true;
+                }
+            }
+
+            return forceDeinterlaceIfSourceIsInterlaced && isInputInterlaced;
+        }
+
+        public string[] GetRequestedProfiles(string codec)
+        {
+            if (!string.IsNullOrEmpty(BaseRequest.Profile))
+            {
+                return BaseRequest.Profile.Split(new[] { '|', ',' }, StringSplitOptions.RemoveEmptyEntries);
+            }
+
+            if (!string.IsNullOrEmpty(codec))
+            {
+                var profile = BaseRequest.GetOption(codec, "profile");
+
+                if (!string.IsNullOrEmpty(profile))
+                {
+                    return profile.Split(new[] { '|', ',' }, StringSplitOptions.RemoveEmptyEntries);
+                }
+            }
+
+            return Array.Empty<string>();
+        }
+
+        public string GetRequestedLevel(string codec)
+        {
+            if (!string.IsNullOrEmpty(BaseRequest.Level))
+            {
+                return BaseRequest.Level;
+            }
+
+            if (!string.IsNullOrEmpty(codec))
+            {
+                return BaseRequest.GetOption(codec, "level");
+            }
+
+            return null;
+        }
+
+        public int? GetRequestedMaxRefFrames(string codec)
+        {
+            if (BaseRequest.MaxRefFrames.HasValue)
+            {
+                return BaseRequest.MaxRefFrames;
+            }
+
+            if (!string.IsNullOrEmpty(codec))
+            {
+                var value = BaseRequest.GetOption(codec, "maxrefframes");
+                if (!string.IsNullOrEmpty(value)
+                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
+                {
+                    return result;
+                }
+            }
+
+            return null;
+        }
+
+        public int? GetRequestedVideoBitDepth(string codec)
+        {
+            if (BaseRequest.MaxVideoBitDepth.HasValue)
+            {
+                return BaseRequest.MaxVideoBitDepth;
+            }
+
+            if (!string.IsNullOrEmpty(codec))
+            {
+                var value = BaseRequest.GetOption(codec, "videobitdepth");
+                if (!string.IsNullOrEmpty(value)
+                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
+                {
+                    return result;
+                }
+            }
+
+            return null;
+        }
+
+        public int? GetRequestedAudioBitDepth(string codec)
+        {
+            if (BaseRequest.MaxAudioBitDepth.HasValue)
+            {
+                return BaseRequest.MaxAudioBitDepth;
+            }
+
+            if (!string.IsNullOrEmpty(codec))
+            {
+                var value = BaseRequest.GetOption(codec, "audiobitdepth");
+                if (!string.IsNullOrEmpty(value)
+                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
+                {
+                    return result;
+                }
+            }
+
+            return null;
+        }
+
+        public int? GetRequestedAudioChannels(string codec)
+        {
+            if (!string.IsNullOrEmpty(codec))
+            {
+                var value = BaseRequest.GetOption(codec, "audiochannels");
+                if (!string.IsNullOrEmpty(value)
+                    && int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
+                {
+                    return result;
+                }
+            }
+
+            if (BaseRequest.MaxAudioChannels.HasValue)
+            {
+                return BaseRequest.MaxAudioChannels;
+            }
+
+            if (BaseRequest.AudioChannels.HasValue)
+            {
+                return BaseRequest.AudioChannels;
+            }
+
+            if (BaseRequest.TranscodingMaxAudioChannels.HasValue)
+            {
+                return BaseRequest.TranscodingMaxAudioChannels;
+            }
+
+            return null;
+        }
 
         public virtual void ReportTranscodingProgress(TimeSpan? transcodingPosition, float? framerate, double? percentComplete, long? bytesTranscoded, int? bitRate)
         {
diff --git a/MediaBrowser.Controller/MediaEncoding/IEncodingManager.cs b/MediaBrowser.Controller/MediaEncoding/IEncodingManager.cs
index 773547872c..8ce40a58d1 100644
--- a/MediaBrowser.Controller/MediaEncoding/IEncodingManager.cs
+++ b/MediaBrowser.Controller/MediaEncoding/IEncodingManager.cs
@@ -16,6 +16,13 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Refreshes the chapter images.
         /// </summary>
+        /// <param name="video">Video to use.</param>
+        /// <param name="directoryService">Directory service to use.</param>
+        /// <param name="chapters">Set of chapters to refresh.</param>
+        /// <param name="extractImages">Option to extract images.</param>
+        /// <param name="saveChapters">Option to save chapters.</param>
+        /// <param name="cancellationToken">CancellationToken to use for operation.</param>
+        /// <returns><c>true</c> if successful, <c>false</c> if not.</returns>
         Task<bool> RefreshChapterImages(Video video, IDirectoryService directoryService, IReadOnlyList<ChapterInfo> chapters, bool extractImages, bool saveChapters, CancellationToken cancellationToken);
     }
 }
diff --git a/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs b/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
index 76a9fd7c74..3aacf92cdc 100644
--- a/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
+++ b/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
@@ -71,13 +71,42 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Extracts the video image.
         /// </summary>
+        /// <param name="inputFile">Input file.</param>
+        /// <param name="container">Video container type.</param>
+        /// <param name="mediaSource">Media source information.</param>
+        /// <param name="videoStream">Media stream information.</param>
+        /// <param name="threedFormat">Video 3D format.</param>
+        /// <param name="offset">Time offset.</param>
+        /// <param name="cancellationToken">CancellationToken to use for operation.</param>
+        /// <returns>Location of video image.</returns>
         Task<string> ExtractVideoImage(string inputFile, string container, MediaSourceInfo mediaSource, MediaStream videoStream, Video3DFormat? threedFormat, TimeSpan? offset, CancellationToken cancellationToken);
 
+        /// <summary>
+        /// Extracts the video image.
+        /// </summary>
+        /// <param name="inputFile">Input file.</param>
+        /// <param name="container">Video container type.</param>
+        /// <param name="mediaSource">Media source information.</param>
+        /// <param name="imageStream">Media stream information.</param>
+        /// <param name="imageStreamIndex">Time offset.</param>
+        /// <param name="cancellationToken">CancellationToken to use for operation.</param>
+        /// <returns>Location of video image.</returns>
         Task<string> ExtractVideoImage(string inputFile, string container, MediaSourceInfo mediaSource, MediaStream imageStream, int? imageStreamIndex, CancellationToken cancellationToken);
 
         /// <summary>
         /// Extracts the video images on interval.
         /// </summary>
+        /// <param name="inputFile">Input file.</param>
+        /// <param name="container">Video container type.</param>
+        /// <param name="videoStream">Media stream information.</param>
+        /// <param name="mediaSource">Media source information.</param>
+        /// <param name="threedFormat">Video 3D format.</param>
+        /// <param name="interval">Time interval.</param>
+        /// <param name="targetDirectory">Directory to write images.</param>
+        /// <param name="filenamePrefix">Filename prefix to use.</param>
+        /// <param name="maxWidth">Maximum width of image.</param>
+        /// <param name="cancellationToken">CancellationToken to use for operation.</param>
+        /// <returns>A task.</returns>
         Task ExtractVideoImagesOnInterval(
             string inputFile,
             string container,
@@ -122,10 +151,24 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <returns>System.String.</returns>
         string EscapeSubtitleFilterPath(string path);
 
+        /// <summary>
+        /// Sets the path to find FFmpeg.
+        /// </summary>
         void SetFFmpegPath();
 
+        /// <summary>
+        /// Updated the encoder path.
+        /// </summary>
+        /// <param name="path">The path.</param>
+        /// <param name="pathType">The type of path.</param>
         void UpdateEncoderPath(string path, string pathType);
 
+        /// <summary>
+        /// Gets the primary playlist of .vob files.
+        /// </summary>
+        /// <param name="path">The to the .vob files.</param>
+        /// <param name="titleNumber">The title number to start with.</param>
+        /// <returns>A playlist.</returns>
         IEnumerable<string> GetPrimaryPlaylistVobFiles(string path, uint? titleNumber);
     }
 }
diff --git a/MediaBrowser.Controller/MediaEncoding/ISubtitleEncoder.cs b/MediaBrowser.Controller/MediaEncoding/ISubtitleEncoder.cs
index 3fb2c47e13..4483cf708a 100644
--- a/MediaBrowser.Controller/MediaEncoding/ISubtitleEncoder.cs
+++ b/MediaBrowser.Controller/MediaEncoding/ISubtitleEncoder.cs
@@ -15,6 +15,14 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <summary>
         /// Gets the subtitles.
         /// </summary>
+        /// <param name="item">Item to use.</param>
+        /// <param name="mediaSourceId">Media source.</param>
+        /// <param name="subtitleStreamIndex">Subtitle stream to use.</param>
+        /// <param name="outputFormat">Output format to use.</param>
+        /// <param name="startTimeTicks">Start time.</param>
+        /// <param name="endTimeTicks">End time.</param>
+        /// <param name="preserveOriginalTimestamps">Option to preserve original timestamps.</param>
+        /// <param name="cancellationToken">The cancellation token for the operation.</param>
         /// <returns>Task{Stream}.</returns>
         Task<Stream> GetSubtitles(
             BaseItem item,