Merge remote-tracking branch 'upstream/master' into baseitemkind-fixes

18 files changed, 745 insertions, 787 deletions

diff --git a/MediaBrowser.Model/Dlna/AudioOptions.cs b/MediaBrowser.Model/Dlna/AudioOptions.cs
index bbb8bf4263..4d4d8d78cb 100644
--- a/MediaBrowser.Model/Dlna/AudioOptions.cs
+++ b/MediaBrowser.Model/Dlna/AudioOptions.cs
@@ -34,20 +34,20 @@ namespace MediaBrowser.Model.Dlna
         public DeviceProfile Profile { get; set; }
 
         /// <summary>
-        /// Optional. Only needed if a specific AudioStreamIndex or SubtitleStreamIndex are requested.
+        /// Gets or sets a media source id. Optional. Only needed if a specific AudioStreamIndex or SubtitleStreamIndex are requested.
         /// </summary>
         public string MediaSourceId { get; set; }
 
         public string DeviceId { get; set; }
 
         /// <summary>
-        /// Allows an override of supported number of audio channels
-        /// Example: DeviceProfile supports five channel, but user only has stereo speakers
+        /// Gets or sets an override of supported number of audio channels
+        /// Example: DeviceProfile supports five channel, but user only has stereo speakers.
         /// </summary>
         public int? MaxAudioChannels { get; set; }
 
         /// <summary>
-        /// The application's configured quality setting.
+        /// Gets or sets the application's configured quality setting.
         /// </summary>
         public int? MaxBitrate { get; set; }
 
@@ -66,6 +66,7 @@ namespace MediaBrowser.Model.Dlna
         /// <summary>
         /// Gets the maximum bitrate.
         /// </summary>
+        /// <param name="isAudio">Whether or not this is audio.</param>
         /// <returns>System.Nullable&lt;System.Int32&gt;.</returns>
         public int? GetMaxBitrate(bool isAudio)
         {
diff --git a/MediaBrowser.Model/Dlna/CodecProfile.cs b/MediaBrowser.Model/Dlna/CodecProfile.cs
index d4fd3e6730..8343cf028b 100644
--- a/MediaBrowser.Model/Dlna/CodecProfile.cs
+++ b/MediaBrowser.Model/Dlna/CodecProfile.cs
@@ -9,6 +9,12 @@ namespace MediaBrowser.Model.Dlna
 {
     public class CodecProfile
     {
+        public CodecProfile()
+        {
+            Conditions = Array.Empty<ProfileCondition>();
+            ApplyConditions = Array.Empty<ProfileCondition>();
+        }
+
         [XmlAttribute("type")]
         public CodecType Type { get; set; }
 
@@ -22,12 +28,6 @@ namespace MediaBrowser.Model.Dlna
         [XmlAttribute("container")]
         public string Container { get; set; }
 
-        public CodecProfile()
-        {
-            Conditions = Array.Empty<ProfileCondition>();
-            ApplyConditions = Array.Empty<ProfileCondition>();
-        }
-
         public string[] GetCodecs()
         {
             return ContainerProfile.SplitValue(Codec);
diff --git a/MediaBrowser.Model/Dlna/ConditionProcessor.cs b/MediaBrowser.Model/Dlna/ConditionProcessor.cs
index faf1ee41be..55c4dd0742 100644
--- a/MediaBrowser.Model/Dlna/ConditionProcessor.cs
+++ b/MediaBrowser.Model/Dlna/ConditionProcessor.cs
@@ -1,8 +1,8 @@
 #pragma warning disable CS1591
 
 using System;
-using System.Linq;
 using System.Globalization;
+using System.Linq;
 using MediaBrowser.Model.MediaInfo;
 
 namespace MediaBrowser.Model.Dlna
diff --git a/MediaBrowser.Model/Dlna/ContainerProfile.cs b/MediaBrowser.Model/Dlna/ContainerProfile.cs
index 56c89d854f..7409660881 100644
--- a/MediaBrowser.Model/Dlna/ContainerProfile.cs
+++ b/MediaBrowser.Model/Dlna/ContainerProfile.cs
@@ -1,4 +1,3 @@
-#nullable disable
 #pragma warning disable CS1591
 
 using System;
@@ -12,22 +11,12 @@ namespace MediaBrowser.Model.Dlna
         [XmlAttribute("type")]
         public DlnaProfileType Type { get; set; }
 
-        public ProfileCondition[] Conditions { get; set; }
+        public ProfileCondition[]? Conditions { get; set; } = Array.Empty<ProfileCondition>();
 
         [XmlAttribute("container")]
-        public string Container { get; set; }
+        public string Container { get; set; } = string.Empty;
 
-        public ContainerProfile()
-        {
-            Conditions = Array.Empty<ProfileCondition>();
-        }
-
-        public string[] GetContainers()
-        {
-            return SplitValue(Container);
-        }
-
-        public static string[] SplitValue(string value)
+        public static string[] SplitValue(string? value)
         {
             if (string.IsNullOrEmpty(value))
             {
@@ -37,14 +26,14 @@ namespace MediaBrowser.Model.Dlna
             return value.Split(',', StringSplitOptions.RemoveEmptyEntries);
         }
 
-        public bool ContainsContainer(string container)
+        public bool ContainsContainer(string? container)
         {
-            var containers = GetContainers();
+            var containers = SplitValue(Container);
 
             return ContainsContainer(containers, container);
         }
 
-        public static bool ContainsContainer(string profileContainers, string inputContainer)
+        public static bool ContainsContainer(string? profileContainers, string? inputContainer)
         {
             var isNegativeList = false;
             if (profileContainers != null && profileContainers.StartsWith('-'))
@@ -56,46 +45,30 @@ namespace MediaBrowser.Model.Dlna
             return ContainsContainer(SplitValue(profileContainers), isNegativeList, inputContainer);
         }
 
-        public static bool ContainsContainer(string[] profileContainers, string inputContainer)
+        public static bool ContainsContainer(string[]? profileContainers, string? inputContainer)
         {
             return ContainsContainer(profileContainers, false, inputContainer);
         }
 
-        public static bool ContainsContainer(string[] profileContainers, bool isNegativeList, string inputContainer)
+        public static bool ContainsContainer(string[]? profileContainers, bool isNegativeList, string? inputContainer)
         {
-            if (profileContainers.Length == 0)
+            if (profileContainers == null || profileContainers.Length == 0)
             {
+                // Empty profiles always support all containers/codecs
                 return true;
             }
 
-            if (isNegativeList)
-            {
-                var allInputContainers = SplitValue(inputContainer);
+            var allInputContainers = SplitValue(inputContainer);
 
-                foreach (var container in allInputContainers)
-                {
-                    if (profileContainers.Contains(container, StringComparer.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                }
-
-                return true;
-            }
-            else
+            foreach (var container in allInputContainers)
             {
-                var allInputContainers = SplitValue(inputContainer);
-
-                foreach (var container in allInputContainers)
+                if (profileContainers.Contains(container, StringComparer.OrdinalIgnoreCase))
                 {
-                    if (profileContainers.Contains(container, StringComparer.OrdinalIgnoreCase))
-                    {
-                        return true;
-                    }
+                    return !isNegativeList;
                 }
-
-                return false;
             }
+
+            return isNegativeList;
         }
     }
 }
diff --git a/MediaBrowser.Model/Dlna/ContentFeatureBuilder.cs b/MediaBrowser.Model/Dlna/ContentFeatureBuilder.cs
index 50e3374f77..600a441570 100644
--- a/MediaBrowser.Model/Dlna/ContentFeatureBuilder.cs
+++ b/MediaBrowser.Model/Dlna/ContentFeatureBuilder.cs
@@ -10,14 +10,8 @@ namespace MediaBrowser.Model.Dlna
 {
     public class ContentFeatureBuilder
     {
-        private readonly DeviceProfile _profile;
-
-        public ContentFeatureBuilder(DeviceProfile profile)
-        {
-            _profile = profile;
-        }
-
-        public string BuildImageHeader(
+        public static string BuildImageHeader(
+            DeviceProfile profile,
             string container,
             int? width,
             int? height,
@@ -38,27 +32,31 @@ namespace MediaBrowser.Model.Dlna
                 ";DLNA.ORG_FLAGS={0}",
                 DlnaMaps.FlagsToString(flagValue));
 
-            ResponseProfile mediaProfile = _profile.GetImageMediaProfile(
-                container,
-                width,
-                height);
-
             if (string.IsNullOrEmpty(orgPn))
             {
+                ResponseProfile mediaProfile = profile.GetImageMediaProfile(
+                    container,
+                    width,
+                    height);
+
                 orgPn = mediaProfile?.OrgPn;
+
+                if (string.IsNullOrEmpty(orgPn))
+                {
+                    orgPn = GetImageOrgPnValue(container, width, height);
+                }
             }
 
             if (string.IsNullOrEmpty(orgPn))
             {
-                orgPn = GetImageOrgPnValue(container, width, height);
+                return orgOp.TrimStart(';') + orgCi + dlnaflags;
             }
 
-            string contentFeatures = string.IsNullOrEmpty(orgPn) ? string.Empty : "DLNA.ORG_PN=" + orgPn;
-
-            return (contentFeatures + orgOp + orgCi + dlnaflags).Trim(';');
+            return "DLNA.ORG_PN=" + orgPn + orgOp + orgCi + dlnaflags;
         }
 
-        public string BuildAudioHeader(
+        public static string BuildAudioHeader(
+            DeviceProfile profile,
             string container,
             string audioCodec,
             int? audioBitrate,
@@ -81,20 +79,20 @@ namespace MediaBrowser.Model.Dlna
                             DlnaFlags.DlnaV15;
 
             // if (isDirectStream)
-            //{
-            //    flagValue = flagValue | DlnaFlags.ByteBasedSeek;
-            //}
-            // else if (runtimeTicks.HasValue)
-            //{
-            //    flagValue = flagValue | DlnaFlags.TimeBasedSeek;
-            //}
+            // {
+            //     flagValue = flagValue | DlnaFlags.ByteBasedSeek;
+            // }
+            //  else if (runtimeTicks.HasValue)
+            // {
+            //     flagValue = flagValue | DlnaFlags.TimeBasedSeek;
+            // }
 
             string dlnaflags = string.Format(
                 CultureInfo.InvariantCulture,
                 ";DLNA.ORG_FLAGS={0}",
                 DlnaMaps.FlagsToString(flagValue));
 
-            ResponseProfile mediaProfile = _profile.GetAudioMediaProfile(
+            ResponseProfile mediaProfile = profile.GetAudioMediaProfile(
                 container,
                 audioCodec,
                 audioChannels,
@@ -109,12 +107,16 @@ namespace MediaBrowser.Model.Dlna
                 orgPn = GetAudioOrgPnValue(container, audioBitrate, audioSampleRate, audioChannels);
             }
 
-            string contentFeatures = string.IsNullOrEmpty(orgPn) ? string.Empty : "DLNA.ORG_PN=" + orgPn;
+            if (string.IsNullOrEmpty(orgPn))
+            {
+                return orgOp.TrimStart(';') + orgCi + dlnaflags;
+            }
 
-            return (contentFeatures + orgOp + orgCi + dlnaflags).Trim(';');
+            return "DLNA.ORG_PN=" + orgPn + orgOp + orgCi + dlnaflags;
         }
 
-        public List<string> BuildVideoHeader(
+        public static List<string> BuildVideoHeader(
+            DeviceProfile profile,
             string container,
             string videoCodec,
             string audioCodec,
@@ -150,18 +152,20 @@ namespace MediaBrowser.Model.Dlna
                             DlnaFlags.DlnaV15;
 
             // if (isDirectStream)
-            //{
-            //    flagValue = flagValue | DlnaFlags.ByteBasedSeek;
-            //}
-            // else if (runtimeTicks.HasValue)
-            //{
-            //    flagValue = flagValue | DlnaFlags.TimeBasedSeek;
-            //}
-
-            string dlnaflags = string.Format(CultureInfo.InvariantCulture, ";DLNA.ORG_FLAGS={0}",
-             DlnaMaps.FlagsToString(flagValue));
-
-            ResponseProfile mediaProfile = _profile.GetVideoMediaProfile(
+            // {
+            //     flagValue = flagValue | DlnaFlags.ByteBasedSeek;
+            // }
+            //  else if (runtimeTicks.HasValue)
+            // {
+            //     flagValue = flagValue | DlnaFlags.TimeBasedSeek;
+            // }
+
+            string dlnaflags = string.Format(
+                CultureInfo.InvariantCulture,
+                ";DLNA.ORG_FLAGS={0}",
+                DlnaMaps.FlagsToString(flagValue));
+
+            ResponseProfile mediaProfile = profile.GetVideoMediaProfile(
                 container,
                 audioCodec,
                 videoCodec,
@@ -190,9 +194,9 @@ namespace MediaBrowser.Model.Dlna
             }
             else
             {
-                foreach (string s in GetVideoOrgPnValue(container, videoCodec, audioCodec, width, height, timestamp))
+                foreach (var s in GetVideoOrgPnValue(container, videoCodec, audioCodec, width, height, timestamp))
                 {
-                    orgPnValues.Add(s);
+                    orgPnValues.Add(s.ToString());
                     break;
                 }
             }
@@ -201,20 +205,20 @@ namespace MediaBrowser.Model.Dlna
 
             foreach (string orgPn in orgPnValues)
             {
-                string contentFeatures = string.IsNullOrEmpty(orgPn) ? string.Empty : "DLNA.ORG_PN=" + orgPn;
-
-                var value = (contentFeatures + orgOp + orgCi + dlnaflags).Trim(';');
-
-                contentFeatureList.Add(value);
+                if (string.IsNullOrEmpty(orgPn))
+                {
+                    contentFeatureList.Add(orgOp.TrimStart(';') + orgCi + dlnaflags);
+                    continue;
+                }
+                else
+                {
+                    contentFeatureList.Add("DLNA.ORG_PN=" + orgPn + orgCi + dlnaflags);
+                }
             }
 
             if (orgPnValues.Count == 0)
             {
-                string contentFeatures = string.Empty;
-
-                var value = (contentFeatures + orgOp + orgCi + dlnaflags).Trim(';');
-
-                contentFeatureList.Add(value);
+                contentFeatureList.Add(orgOp.TrimStart(';') + orgCi + dlnaflags);
             }
 
             return contentFeatureList;
@@ -222,19 +226,14 @@ namespace MediaBrowser.Model.Dlna
 
         private static string GetImageOrgPnValue(string container, int? width, int? height)
         {
-            MediaFormatProfile? format = new MediaFormatProfileResolver()
-                .ResolveImageFormat(
-                container,
-                width,
-                height);
+            MediaFormatProfile? format = MediaFormatProfileResolver.ResolveImageFormat(container, width, height);
 
             return format.HasValue ? format.Value.ToString() : null;
         }
 
         private static string GetAudioOrgPnValue(string container, int? audioBitrate, int? audioSampleRate, int? audioChannels)
         {
-            MediaFormatProfile? format = new MediaFormatProfileResolver()
-                .ResolveAudioFormat(
+            MediaFormatProfile? format = MediaFormatProfileResolver.ResolveAudioFormat(
                 container,
                 audioBitrate,
                 audioSampleRate,
@@ -243,9 +242,9 @@ namespace MediaBrowser.Model.Dlna
             return format.HasValue ? format.Value.ToString() : null;
         }
 
-        private static string[] GetVideoOrgPnValue(string container, string videoCodec, string audioCodec, int? width, int? height, TransportStreamTimestamp timestamp)
+        private static MediaFormatProfile[] GetVideoOrgPnValue(string container, string videoCodec, string audioCodec, int? width, int? height, TransportStreamTimestamp timestamp)
         {
-            return new MediaFormatProfileResolver().ResolveVideoFormat(container, videoCodec, audioCodec, width, height, timestamp);
+            return MediaFormatProfileResolver.ResolveVideoFormat(container, videoCodec, audioCodec, width, height, timestamp);
         }
     }
 }
diff --git a/MediaBrowser.Model/Dlna/DeviceProfile.cs b/MediaBrowser.Model/Dlna/DeviceProfile.cs
index ff51866587..feb3d880ec 100644
--- a/MediaBrowser.Model/Dlna/DeviceProfile.cs
+++ b/MediaBrowser.Model/Dlna/DeviceProfile.cs
@@ -1,6 +1,6 @@
-#nullable disable
 #pragma warning disable CA1819 // Properties should not return arrays
 using System;
+using System.ComponentModel;
 using System.Linq;
 using System.Xml.Serialization;
 using MediaBrowser.Model.MediaInfo;
@@ -8,226 +8,219 @@ using MediaBrowser.Model.MediaInfo;
 namespace MediaBrowser.Model.Dlna
 {
     /// <summary>
-    /// Defines the <see cref="DeviceProfile" />.
+    /// A <see cref="DeviceProfile" /> represents a set of metadata which determines which content a certain device is able to play.
+    /// <br/>
+    /// Specifically, it defines the supported <see cref="ContainerProfiles">containers</see> and
+    /// <see cref="CodecProfiles">codecs</see> (video and/or audio, including codec profiles and levels)
+    /// the device is able to direct play (without transcoding or remuxing),
+    /// as well as which <see cref="TranscodingProfiles">containers/codecs to transcode to</see> in case it isn't.
     /// </summary>
     [XmlRoot("Profile")]
     public class DeviceProfile
     {
         /// <summary>
-        /// Initializes a new instance of the <see cref="DeviceProfile"/> class.
+        /// Gets or sets the name of this device profile.
         /// </summary>
-        public DeviceProfile()
-        {
-            DirectPlayProfiles = Array.Empty<DirectPlayProfile>();
-            TranscodingProfiles = Array.Empty<TranscodingProfile>();
-            ResponseProfiles = Array.Empty<ResponseProfile>();
-            CodecProfiles = Array.Empty<CodecProfile>();
-            ContainerProfiles = Array.Empty<ContainerProfile>();
-            SubtitleProfiles = Array.Empty<SubtitleProfile>();
-
-            XmlRootAttributes = Array.Empty<XmlAttribute>();
-
-            SupportedMediaTypes = "Audio,Photo,Video";
-            MaxStreamingBitrate = 8000000;
-            MaxStaticBitrate = 8000000;
-            MusicStreamingTranscodingBitrate = 128000;
-        }
-
-        /// <summary>
-        /// Gets or sets the Name.
-        /// </summary>
-        public string Name { get; set; }
+        public string? Name { get; set; }
 
         /// <summary>
         /// Gets or sets the Id.
         /// </summary>
         [XmlIgnore]
-        public string Id { get; set; }
+        public string? Id { get; set; }
 
         /// <summary>
         /// Gets or sets the Identification.
         /// </summary>
-        public DeviceIdentification Identification { get; set; }
+        public DeviceIdentification? Identification { get; set; }
 
         /// <summary>
-        /// Gets or sets the FriendlyName.
+        /// Gets or sets the friendly name of the device profile, which can be shown to users.
         /// </summary>
-        public string FriendlyName { get; set; }
+        public string? FriendlyName { get; set; }
 
         /// <summary>
-        /// Gets or sets the Manufacturer.
+        /// Gets or sets the manufacturer of the device which this profile represents.
         /// </summary>
-        public string Manufacturer { get; set; }
+        public string? Manufacturer { get; set; }
 
         /// <summary>
-        /// Gets or sets the ManufacturerUrl.
+        /// Gets or sets an url for the manufacturer of the device which this profile represents.
         /// </summary>
-        public string ManufacturerUrl { get; set; }
+        public string? ManufacturerUrl { get; set; }
 
         /// <summary>
-        /// Gets or sets the ModelName.
+        /// Gets or sets the model name of the device which this profile represents.
         /// </summary>
-        public string ModelName { get; set; }
+        public string? ModelName { get; set; }
 
         /// <summary>
-        /// Gets or sets the ModelDescription.
+        /// Gets or sets the model description of the device which this profile represents.
         /// </summary>
-        public string ModelDescription { get; set; }
+        public string? ModelDescription { get; set; }
 
         /// <summary>
-        /// Gets or sets the ModelNumber.
+        /// Gets or sets the model number of the device which this profile represents.
         /// </summary>
-        public string ModelNumber { get; set; }
+        public string? ModelNumber { get; set; }
 
         /// <summary>
         /// Gets or sets the ModelUrl.
         /// </summary>
-        public string ModelUrl { get; set; }
+        public string? ModelUrl { get; set; }
 
         /// <summary>
-        /// Gets or sets the SerialNumber.
+        /// Gets or sets the serial number of the device which this profile represents.
         /// </summary>
-        public string SerialNumber { get; set; }
+        public string? SerialNumber { get; set; }
 
         /// <summary>
         /// Gets or sets a value indicating whether EnableAlbumArtInDidl.
         /// </summary>
+        [DefaultValue(false)]
         public bool EnableAlbumArtInDidl { get; set; }
 
         /// <summary>
         /// Gets or sets a value indicating whether EnableSingleAlbumArtLimit.
         /// </summary>
+        [DefaultValue(false)]
         public bool EnableSingleAlbumArtLimit { get; set; }
 
         /// <summary>
         /// Gets or sets a value indicating whether EnableSingleSubtitleLimit.
         /// </summary>
+        [DefaultValue(false)]
         public bool EnableSingleSubtitleLimit { get; set; }
 
         /// <summary>
         /// Gets or sets the SupportedMediaTypes.
         /// </summary>
-        public string SupportedMediaTypes { get; set; }
+        public string SupportedMediaTypes { get; set; } = "Audio,Photo,Video";
 
         /// <summary>
         /// Gets or sets the UserId.
         /// </summary>
-        public string UserId { get; set; }
+        public string? UserId { get; set; }
 
         /// <summary>
         /// Gets or sets the AlbumArtPn.
         /// </summary>
-        public string AlbumArtPn { get; set; }
+        public string? AlbumArtPn { get; set; }
 
         /// <summary>
         /// Gets or sets the MaxAlbumArtWidth.
         /// </summary>
-        public int MaxAlbumArtWidth { get; set; }
+        public int? MaxAlbumArtWidth { get; set; }
 
         /// <summary>
         /// Gets or sets the MaxAlbumArtHeight.
         /// </summary>
-        public int MaxAlbumArtHeight { get; set; }
+        public int? MaxAlbumArtHeight { get; set; }
 
         /// <summary>
-        /// Gets or sets the MaxIconWidth.
+        /// Gets or sets the maximum allowed width of embedded icons.
         /// </summary>
         public int? MaxIconWidth { get; set; }
 
         /// <summary>
-        /// Gets or sets the MaxIconHeight.
+        /// Gets or sets the maximum allowed height of embedded icons.
         /// </summary>
         public int? MaxIconHeight { get; set; }
 
         /// <summary>
-        /// Gets or sets the MaxStreamingBitrate.
+        /// Gets or sets the maximum allowed bitrate for all streamed content.
         /// </summary>
-        public int? MaxStreamingBitrate { get; set; }
+        public int? MaxStreamingBitrate { get; set; } = 8000000;
 
         /// <summary>
-        /// Gets or sets the MaxStaticBitrate.
+        /// Gets or sets the maximum allowed bitrate for statically streamed content (= direct played files).
         /// </summary>
-        public int? MaxStaticBitrate { get; set; }
+        public int? MaxStaticBitrate { get; set; } = 8000000;
 
         /// <summary>
-        /// Gets or sets the MusicStreamingTranscodingBitrate.
+        /// Gets or sets the maximum allowed bitrate for transcoded music streams.
         /// </summary>
-        public int? MusicStreamingTranscodingBitrate { get; set; }
+        public int? MusicStreamingTranscodingBitrate { get; set; } = 128000;
 
         /// <summary>
-        /// Gets or sets the MaxStaticMusicBitrate.
+        /// Gets or sets the maximum allowed bitrate for statically streamed (= direct played) music files.
         /// </summary>
-        public int? MaxStaticMusicBitrate { get; set; }
+        public int? MaxStaticMusicBitrate { get; set; } = 8000000;
 
         /// <summary>
         /// Gets or sets the content of the aggregationFlags element in the urn:schemas-sonycom:av namespace.
         /// </summary>
-        public string SonyAggregationFlags { get; set; }
+        public string? SonyAggregationFlags { get; set; }
 
         /// <summary>
         /// Gets or sets the ProtocolInfo.
         /// </summary>
-        public string ProtocolInfo { get; set; }
+        public string? ProtocolInfo { get; set; }
 
         /// <summary>
         /// Gets or sets the TimelineOffsetSeconds.
         /// </summary>
+        [DefaultValue(0)]
         public int TimelineOffsetSeconds { get; set; }
 
         /// <summary>
         /// Gets or sets a value indicating whether RequiresPlainVideoItems.
         /// </summary>
+        [DefaultValue(false)]
         public bool RequiresPlainVideoItems { get; set; }
 
         /// <summary>
         /// Gets or sets a value indicating whether RequiresPlainFolders.
         /// </summary>
+        [DefaultValue(false)]
         public bool RequiresPlainFolders { get; set; }
 
         /// <summary>
         /// Gets or sets a value indicating whether EnableMSMediaReceiverRegistrar.
         /// </summary>
+        [DefaultValue(false)]
         public bool EnableMSMediaReceiverRegistrar { get; set; }
 
         /// <summary>
         /// Gets or sets a value indicating whether IgnoreTranscodeByteRangeRequests.
         /// </summary>
+        [DefaultValue(false)]
         public bool IgnoreTranscodeByteRangeRequests { get; set; }
 
         /// <summary>
         /// Gets or sets the XmlRootAttributes.
         /// </summary>
-        public XmlAttribute[] XmlRootAttributes { get; set; }
+        public XmlAttribute[] XmlRootAttributes { get; set; } = Array.Empty<XmlAttribute>();
 
         /// <summary>
         /// Gets or sets the direct play profiles.
         /// </summary>
-        public DirectPlayProfile[] DirectPlayProfiles { get; set; }
+        public DirectPlayProfile[] DirectPlayProfiles { get; set; } = Array.Empty<DirectPlayProfile>();
 
         /// <summary>
         /// Gets or sets the transcoding profiles.
         /// </summary>
-        public TranscodingProfile[] TranscodingProfiles { get; set; }
+        public TranscodingProfile[] TranscodingProfiles { get; set; } = Array.Empty<TranscodingProfile>();
 
         /// <summary>
-        /// Gets or sets the ContainerProfiles.
+        /// Gets or sets the container profiles.
         /// </summary>
-        public ContainerProfile[] ContainerProfiles { get; set; }
+        public ContainerProfile[] ContainerProfiles { get; set; } = Array.Empty<ContainerProfile>();
 
         /// <summary>
-        /// Gets or sets the CodecProfiles.
+        /// Gets or sets the codec profiles.
         /// </summary>
-        public CodecProfile[] CodecProfiles { get; set; }
+        public CodecProfile[] CodecProfiles { get; set; } = Array.Empty<CodecProfile>();
 
         /// <summary>
         /// Gets or sets the ResponseProfiles.
         /// </summary>
-        public ResponseProfile[] ResponseProfiles { get; set; }
+        public ResponseProfile[] ResponseProfiles { get; set; } = Array.Empty<ResponseProfile>();
 
         /// <summary>
-        /// Gets or sets the SubtitleProfiles.
+        /// Gets or sets the subtitle profiles.
         /// </summary>
-        public SubtitleProfile[] SubtitleProfiles { get; set; }
+        public SubtitleProfile[] SubtitleProfiles { get; set; } = Array.Empty<SubtitleProfile>();
 
         /// <summary>
         /// The GetSupportedMediaTypes.
@@ -244,13 +237,13 @@ namespace MediaBrowser.Model.Dlna
         /// <param name="container">The container.</param>
         /// <param name="audioCodec">The audio Codec.</param>
         /// <returns>A <see cref="TranscodingProfile"/>.</returns>
-        public TranscodingProfile GetAudioTranscodingProfile(string container, string audioCodec)
+        public TranscodingProfile? GetAudioTranscodingProfile(string? container, string? audioCodec)
         {
             container = (container ?? string.Empty).TrimStart('.');
 
             foreach (var i in TranscodingProfiles)
             {
-                if (i.Type != MediaBrowser.Model.Dlna.DlnaProfileType.Audio)
+                if (i.Type != DlnaProfileType.Audio)
                 {
                     continue;
                 }
@@ -278,13 +271,13 @@ namespace MediaBrowser.Model.Dlna
         /// <param name="audioCodec">The audio Codec.</param>
         /// <param name="videoCodec">The video Codec.</param>
         /// <returns>The <see cref="TranscodingProfile"/>.</returns>
-        public TranscodingProfile GetVideoTranscodingProfile(string container, string audioCodec, string videoCodec)
+        public TranscodingProfile? GetVideoTranscodingProfile(string? container, string? audioCodec, string? videoCodec)
         {
             container = (container ?? string.Empty).TrimStart('.');
 
             foreach (var i in TranscodingProfiles)
             {
-                if (i.Type != MediaBrowser.Model.Dlna.DlnaProfileType.Video)
+                if (i.Type != DlnaProfileType.Video)
                 {
                     continue;
                 }
@@ -299,7 +292,7 @@ namespace MediaBrowser.Model.Dlna
                     continue;
                 }
 
-                if (!string.Equals(videoCodec, i.VideoCodec ?? string.Empty, StringComparison.OrdinalIgnoreCase))
+                if (!string.Equals(videoCodec, i.VideoCodec, StringComparison.OrdinalIgnoreCase))
                 {
                     continue;
                 }
@@ -320,7 +313,7 @@ namespace MediaBrowser.Model.Dlna
         /// <param name="audioSampleRate">The audio sample rate.</param>
         /// <param name="audioBitDepth">The audio bit depth.</param>
         /// <returns>The <see cref="ResponseProfile"/>.</returns>
-        public ResponseProfile GetAudioMediaProfile(string container, string audioCodec, int? audioChannels, int? audioBitrate, int? audioSampleRate, int? audioBitDepth)
+        public ResponseProfile? GetAudioMediaProfile(string container, string? audioCodec, int? audioChannels, int? audioBitrate, int? audioSampleRate, int? audioBitDepth)
         {
             foreach (var i in ResponseProfiles)
             {
@@ -384,7 +377,7 @@ namespace MediaBrowser.Model.Dlna
         /// <param name="width">The width.</param>
         /// <param name="height">The height.</param>
         /// <returns>The <see cref="ResponseProfile"/>.</returns>
-        public ResponseProfile GetImageMediaProfile(string container, int? width, int? height)
+        public ResponseProfile? GetImageMediaProfile(string container, int? width, int? height)
         {
             foreach (var i in ResponseProfiles)
             {
@@ -442,10 +435,10 @@ namespace MediaBrowser.Model.Dlna
         /// <param name="videoCodecTag">The video Codec tag.</param>
         /// <param name="isAvc">True if Avc.</param>
         /// <returns>The <see cref="ResponseProfile"/>.</returns>
-        public ResponseProfile GetVideoMediaProfile(
+        public ResponseProfile? GetVideoMediaProfile(
             string container,
-            string audioCodec,
-            string videoCodec,
+            string? audioCodec,
+            string? videoCodec,
             int? width,
             int? height,
             int? bitDepth,
diff --git a/MediaBrowser.Model/Dlna/DirectPlayProfile.cs b/MediaBrowser.Model/Dlna/DirectPlayProfile.cs
index 88cb839918..fa3ad098f0 100644
--- a/MediaBrowser.Model/Dlna/DirectPlayProfile.cs
+++ b/MediaBrowser.Model/Dlna/DirectPlayProfile.cs
@@ -1,6 +1,6 @@
-#nullable disable
 #pragma warning disable CS1591
 
+using System.ComponentModel.DataAnnotations;
 using System.Xml.Serialization;
 
 namespace MediaBrowser.Model.Dlna
@@ -8,13 +8,13 @@ namespace MediaBrowser.Model.Dlna
     public class DirectPlayProfile
     {
         [XmlAttribute("container")]
-        public string Container { get; set; }
+        public string? Container { get; set; }
 
         [XmlAttribute("audioCodec")]
-        public string AudioCodec { get; set; }
+        public string? AudioCodec { get; set; }
 
         [XmlAttribute("videoCodec")]
-        public string VideoCodec { get; set; }
+        public string? VideoCodec { get; set; }
 
         [XmlAttribute("type")]
         public DlnaProfileType Type { get; set; }
diff --git a/MediaBrowser.Model/Dlna/IDeviceDiscovery.cs b/MediaBrowser.Model/Dlna/IDeviceDiscovery.cs
index 05209e53d0..086088deae 100644
--- a/MediaBrowser.Model/Dlna/IDeviceDiscovery.cs
+++ b/MediaBrowser.Model/Dlna/IDeviceDiscovery.cs
@@ -8,6 +8,7 @@ namespace MediaBrowser.Model.Dlna
     public interface IDeviceDiscovery
     {
         event EventHandler<GenericEventArgs<UpnpDeviceInfo>> DeviceDiscovered;
+
         event EventHandler<GenericEventArgs<UpnpDeviceInfo>> DeviceLeft;
     }
 }
diff --git a/MediaBrowser.Model/Dlna/MediaFormatProfileResolver.cs b/MediaBrowser.Model/Dlna/MediaFormatProfileResolver.cs
index 3c955989a1..7ce248509c 100644
--- a/MediaBrowser.Model/Dlna/MediaFormatProfileResolver.cs
+++ b/MediaBrowser.Model/Dlna/MediaFormatProfileResolver.cs
@@ -9,16 +9,9 @@ using MediaBrowser.Model.MediaInfo;
 
 namespace MediaBrowser.Model.Dlna
 {
-    public class MediaFormatProfileResolver
+    public static class MediaFormatProfileResolver
     {
-        public string[] ResolveVideoFormat(string container, string videoCodec, string audioCodec, int? width, int? height, TransportStreamTimestamp timestampType)
-        {
-            return ResolveVideoFormatInternal(container, videoCodec, audioCodec, width, height, timestampType)
-                .Select(i => i.ToString())
-                .ToArray();
-        }
-
-        private MediaFormatProfile[] ResolveVideoFormatInternal(string container, string videoCodec, string audioCodec, int? width, int? height, TransportStreamTimestamp timestampType)
+        public static MediaFormatProfile[] ResolveVideoFormat(string container, string videoCodec, string audioCodec, int? width, int? height, TransportStreamTimestamp timestampType)
         {
             if (string.Equals(container, "asf", StringComparison.OrdinalIgnoreCase))
             {
@@ -57,7 +50,6 @@ namespace MediaBrowser.Model.Dlna
                 string.Equals(container, "mpegts", StringComparison.OrdinalIgnoreCase) ||
                 string.Equals(container, "m2ts", StringComparison.OrdinalIgnoreCase))
             {
-
                 return ResolveVideoMPEG2TSFormat(videoCodec, audioCodec, width, height, timestampType);
             }
 
@@ -85,7 +77,7 @@ namespace MediaBrowser.Model.Dlna
             return Array.Empty<MediaFormatProfile>();
         }
 
-        private MediaFormatProfile[] ResolveVideoMPEG2TSFormat(string videoCodec, string audioCodec, int? width, int? height, TransportStreamTimestamp timestampType)
+        private static MediaFormatProfile[] ResolveVideoMPEG2TSFormat(string videoCodec, string audioCodec, int? width, int? height, TransportStreamTimestamp timestampType)
         {
             string suffix = string.Empty;
 
@@ -210,12 +202,12 @@ namespace MediaBrowser.Model.Dlna
             return Array.Empty<MediaFormatProfile>();
         }
 
-        private MediaFormatProfile ValueOf(string value)
+        private static MediaFormatProfile ValueOf(string value)
         {
             return (MediaFormatProfile)Enum.Parse(typeof(MediaFormatProfile), value, true);
         }
 
-        private MediaFormatProfile? ResolveVideoMP4Format(string videoCodec, string audioCodec, int? width, int? height)
+        private static MediaFormatProfile? ResolveVideoMP4Format(string videoCodec, string audioCodec, int? width, int? height)
         {
             if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
             {
@@ -288,7 +280,7 @@ namespace MediaBrowser.Model.Dlna
             return null;
         }
 
-        private MediaFormatProfile? ResolveVideo3GPFormat(string videoCodec, string audioCodec)
+        private static MediaFormatProfile? ResolveVideo3GPFormat(string videoCodec, string audioCodec)
         {
             if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
             {
@@ -318,12 +310,11 @@ namespace MediaBrowser.Model.Dlna
             return null;
         }
 
-        private MediaFormatProfile? ResolveVideoASFFormat(string videoCodec, string audioCodec, int? width, int? height)
+        private static MediaFormatProfile? ResolveVideoASFFormat(string videoCodec, string audioCodec, int? width, int? height)
         {
             if (string.Equals(videoCodec, "wmv", StringComparison.OrdinalIgnoreCase) &&
                 (string.IsNullOrEmpty(audioCodec) || string.Equals(audioCodec, "wma", StringComparison.OrdinalIgnoreCase) || string.Equals(videoCodec, "wmapro", StringComparison.OrdinalIgnoreCase)))
             {
-
                 if (width.HasValue && height.HasValue)
                 {
                     if ((width.Value <= 720) && (height.Value <= 576))
@@ -373,7 +364,7 @@ namespace MediaBrowser.Model.Dlna
             return null;
         }
 
-        public MediaFormatProfile? ResolveAudioFormat(string container, int? bitrate, int? frequency, int? channels)
+        public static MediaFormatProfile? ResolveAudioFormat(string container, int? bitrate, int? frequency, int? channels)
         {
             if (string.Equals(container, "asf", StringComparison.OrdinalIgnoreCase))
             {
@@ -415,7 +406,7 @@ namespace MediaBrowser.Model.Dlna
             return null;
         }
 
-        private MediaFormatProfile ResolveAudioASFFormat(int? bitrate)
+        private static MediaFormatProfile ResolveAudioASFFormat(int? bitrate)
         {
             if (bitrate.HasValue && bitrate.Value <= 193)
             {
@@ -425,7 +416,7 @@ namespace MediaBrowser.Model.Dlna
             return MediaFormatProfile.WMA_FULL;
         }
 
-        private MediaFormatProfile? ResolveAudioLPCMFormat(int? frequency, int? channels)
+        private static MediaFormatProfile? ResolveAudioLPCMFormat(int? frequency, int? channels)
         {
             if (frequency.HasValue && channels.HasValue)
             {
@@ -455,7 +446,7 @@ namespace MediaBrowser.Model.Dlna
             return MediaFormatProfile.LPCM16_48_STEREO;
         }
 
-        private MediaFormatProfile ResolveAudioMP4Format(int? bitrate)
+        private static MediaFormatProfile ResolveAudioMP4Format(int? bitrate)
         {
             if (bitrate.HasValue && bitrate.Value <= 320)
             {
@@ -465,7 +456,7 @@ namespace MediaBrowser.Model.Dlna
             return MediaFormatProfile.AAC_ISO;
         }
 
-        private MediaFormatProfile ResolveAudioADTSFormat(int? bitrate)
+        private static MediaFormatProfile ResolveAudioADTSFormat(int? bitrate)
         {
             if (bitrate.HasValue && bitrate.Value <= 320)
             {
@@ -475,11 +466,13 @@ namespace MediaBrowser.Model.Dlna
             return MediaFormatProfile.AAC_ADTS;
         }
 
-        public MediaFormatProfile? ResolveImageFormat(string container, int? width, int? height)
+        public static MediaFormatProfile? ResolveImageFormat(string container, int? width, int? height)
         {
             if (string.Equals(container, "jpeg", StringComparison.OrdinalIgnoreCase) ||
                 string.Equals(container, "jpg", StringComparison.OrdinalIgnoreCase))
+            {
                 return ResolveImageJPGFormat(width, height);
+            }
 
             if (string.Equals(container, "png", StringComparison.OrdinalIgnoreCase))
             {
@@ -499,7 +492,7 @@ namespace MediaBrowser.Model.Dlna
             return null;
         }
 
-        private MediaFormatProfile ResolveImageJPGFormat(int? width, int? height)
+        private static MediaFormatProfile ResolveImageJPGFormat(int? width, int? height)
         {
             if (width.HasValue && height.HasValue)
             {
@@ -524,7 +517,7 @@ namespace MediaBrowser.Model.Dlna
             return MediaFormatProfile.JPEG_SM;
         }
 
-        private MediaFormatProfile ResolveImagePNGFormat(int? width, int? height)
+        private static MediaFormatProfile ResolveImagePNGFormat(int? width, int? height)
         {
             if (width.HasValue && height.HasValue)
             {
diff --git a/MediaBrowser.Model/Dlna/ResolutionConfiguration.cs b/MediaBrowser.Model/Dlna/ResolutionConfiguration.cs
index 30c44fbe0e..f8f76c69d8 100644
--- a/MediaBrowser.Model/Dlna/ResolutionConfiguration.cs
+++ b/MediaBrowser.Model/Dlna/ResolutionConfiguration.cs
@@ -4,14 +4,14 @@ namespace MediaBrowser.Model.Dlna
 {
     public class ResolutionConfiguration
     {
-        public int MaxWidth { get; set; }
-
-        public int MaxBitrate { get; set; }
-
         public ResolutionConfiguration(int maxWidth, int maxBitrate)
         {
             MaxWidth = maxWidth;
             MaxBitrate = maxBitrate;
         }
+
+        public int MaxWidth { get; set; }
+
+        public int MaxBitrate { get; set; }
     }
 }
diff --git a/MediaBrowser.Model/Dlna/ResponseProfile.cs b/MediaBrowser.Model/Dlna/ResponseProfile.cs
index 48f53f06c2..bf9661f7f3 100644
--- a/MediaBrowser.Model/Dlna/ResponseProfile.cs
+++ b/MediaBrowser.Model/Dlna/ResponseProfile.cs
@@ -8,6 +8,11 @@ namespace MediaBrowser.Model.Dlna
 {
     public class ResponseProfile
     {
+        public ResponseProfile()
+        {
+            Conditions = Array.Empty<ProfileCondition>();
+        }
+
         [XmlAttribute("container")]
         public string Container { get; set; }
 
@@ -28,11 +33,6 @@ namespace MediaBrowser.Model.Dlna
 
         public ProfileCondition[] Conditions { get; set; }
 
-        public ResponseProfile()
-        {
-            Conditions = Array.Empty<ProfileCondition>();
-        }
-
         public string[] GetContainers()
         {
             return ContainerProfile.SplitValue(Container);
diff --git a/MediaBrowser.Model/Dlna/SearchCriteria.cs b/MediaBrowser.Model/Dlna/SearchCriteria.cs
index 94f5bd3dbe..b1fc48c087 100644
--- a/MediaBrowser.Model/Dlna/SearchCriteria.cs
+++ b/MediaBrowser.Model/Dlna/SearchCriteria.cs
@@ -7,31 +7,6 @@ namespace MediaBrowser.Model.Dlna
 {
     public class SearchCriteria
     {
-        public SearchType SearchType { get; set; }
-
-        /// <summary>
-        /// Splits the specified string.
-        /// </summary>
-        /// <param name="str">The string.</param>
-        /// <param name="term">The term.</param>
-        /// <param name="limit">The limit.</param>
-        /// <returns>System.String[].</returns>
-        private static string[] RegexSplit(string str, string term, int limit)
-        {
-            return new Regex(term).Split(str, limit);
-        }
-
-        /// <summary>
-        /// Splits the specified string.
-        /// </summary>
-        /// <param name="str">The string.</param>
-        /// <param name="term">The term.</param>
-        /// <returns>System.String[].</returns>
-        private static string[] RegexSplit(string str, string term)
-        {
-            return Regex.Split(str, term, RegexOptions.IgnoreCase);
-        }
-
         public SearchCriteria(string search)
         {
             if (search.Length == 0)
@@ -48,8 +23,8 @@ namespace MediaBrowser.Model.Dlna
 
                 if (subFactors.Length == 3)
                 {
-                    if (string.Equals("upnp:class", subFactors[0], StringComparison.OrdinalIgnoreCase) &&
-                        (string.Equals("=", subFactors[1], StringComparison.Ordinal) || string.Equals("derivedfrom", subFactors[1], StringComparison.OrdinalIgnoreCase)))
+                    if (string.Equals("upnp:class", subFactors[0], StringComparison.OrdinalIgnoreCase)
+                        && (string.Equals("=", subFactors[1], StringComparison.Ordinal) || string.Equals("derivedfrom", subFactors[1], StringComparison.OrdinalIgnoreCase)))
                     {
                         if (string.Equals("\"object.item.imageItem\"", subFactors[2], StringComparison.Ordinal) || string.Equals("\"object.item.imageItem.photo\"", subFactors[2], StringComparison.OrdinalIgnoreCase))
                         {
@@ -71,5 +46,30 @@ namespace MediaBrowser.Model.Dlna
                 }
             }
         }
+
+        public SearchType SearchType { get; set; }
+
+        /// <summary>
+        /// Splits the specified string.
+        /// </summary>
+        /// <param name="str">The string.</param>
+        /// <param name="term">The term.</param>
+        /// <param name="limit">The limit.</param>
+        /// <returns>System.String[].</returns>
+        private static string[] RegexSplit(string str, string term, int limit)
+        {
+            return new Regex(term).Split(str, limit);
+        }
+
+        /// <summary>
+        /// Splits the specified string.
+        /// </summary>
+        /// <param name="str">The string.</param>
+        /// <param name="term">The term.</param>
+        /// <returns>System.String[].</returns>
+        private static string[] RegexSplit(string str, string term)
+        {
+            return Regex.Split(str, term, RegexOptions.IgnoreCase);
+        }
     }
 }
diff --git a/MediaBrowser.Model/Dlna/SortCriteria.cs b/MediaBrowser.Model/Dlna/SortCriteria.cs
index 53e4540cbb..7769d0bd3e 100644
--- a/MediaBrowser.Model/Dlna/SortCriteria.cs
+++ b/MediaBrowser.Model/Dlna/SortCriteria.cs
@@ -6,10 +6,10 @@ namespace MediaBrowser.Model.Dlna
 {
     public class SortCriteria
     {
-        public SortOrder SortOrder => SortOrder.Ascending;
-
         public SortCriteria(string value)
         {
         }
+
+        public SortOrder SortOrder => SortOrder.Ascending;
     }
 }
diff --git a/MediaBrowser.Model/Dlna/StreamBuilder.cs b/MediaBrowser.Model/Dlna/StreamBuilder.cs
index 431cf0bafa..f4c69fe8f5 100644
--- a/MediaBrowser.Model/Dlna/StreamBuilder.cs
+++ b/MediaBrowser.Model/Dlna/StreamBuilder.cs
@@ -227,7 +227,7 @@ namespace MediaBrowser.Model.Dlna
             }
         }
 
-        public static string NormalizeMediaSourceFormatIntoSingleContainer(string inputContainer, string _, DeviceProfile profile, DlnaProfileType type)
+        public static string NormalizeMediaSourceFormatIntoSingleContainer(string inputContainer, DeviceProfile profile, DlnaProfileType type)
         {
             if (string.IsNullOrEmpty(inputContainer))
             {
@@ -274,14 +274,14 @@ namespace MediaBrowser.Model.Dlna
             if (options.ForceDirectPlay)
             {
                 playlistItem.PlayMethod = PlayMethod.DirectPlay;
-                playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, item.Path, options.Profile, DlnaProfileType.Audio);
+                playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Audio);
                 return playlistItem;
             }
 
             if (options.ForceDirectStream)
             {
                 playlistItem.PlayMethod = PlayMethod.DirectStream;
-                playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, item.Path, options.Profile, DlnaProfileType.Audio);
+                playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Audio);
                 return playlistItem;
             }
 
@@ -297,7 +297,7 @@ namespace MediaBrowser.Model.Dlna
             int? inputAudioSampleRate = audioStream?.SampleRate;
             int? inputAudioBitDepth = audioStream?.BitDepth;
 
-            if (directPlayMethods.Count() > 0)
+            if (directPlayMethods.Any())
             {
                 string audioCodec = audioStream?.Codec;
 
@@ -349,7 +349,7 @@ namespace MediaBrowser.Model.Dlna
                         playlistItem.PlayMethod = PlayMethod.DirectStream;
                     }
 
-                    playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, item.Path, options.Profile, DlnaProfileType.Audio);
+                    playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Audio);
 
                     return playlistItem;
                 }
@@ -514,6 +514,8 @@ namespace MediaBrowser.Model.Dlna
 
         private static List<TranscodeReason> GetTranscodeReasonsFromDirectPlayProfile(MediaSourceInfo item, MediaStream videoStream, MediaStream audioStream, IEnumerable<DirectPlayProfile> directPlayProfiles)
         {
+            var mediaType = videoStream == null ? DlnaProfileType.Audio : DlnaProfileType.Video;
+
             var containerSupported = false;
             var audioSupported = false;
             var videoSupported = false;
@@ -521,7 +523,7 @@ namespace MediaBrowser.Model.Dlna
             foreach (var profile in directPlayProfiles)
             {
                 // Check container type
-                if (profile.SupportsContainer(item.Container))
+                if (profile.Type == mediaType && profile.SupportsContainer(item.Container))
                 {
                     containerSupported = true;
 
@@ -674,7 +676,7 @@ namespace MediaBrowser.Model.Dlna
 
             var videoStream = item.VideoStream;
 
-            // TODO: This doesn't accout for situation of device being able to handle media bitrate, but wifi connection not fast enough
+            // TODO: This doesn't account for situations where the device is able to handle the media's bitrate, but the connection isn't fast enough
             var directPlayEligibilityResult = IsEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options, true) ?? 0, subtitleStream, options, PlayMethod.DirectPlay);
             var directStreamEligibilityResult = IsEligibleForDirectPlay(item, options.GetMaxBitrate(false) ?? 0, subtitleStream, options, PlayMethod.DirectStream);
             bool isEligibleForDirectPlay = options.EnableDirectPlay && (options.ForceDirectPlay || directPlayEligibilityResult.Item1);
@@ -698,7 +700,7 @@ namespace MediaBrowser.Model.Dlna
                 if (directPlay != null)
                 {
                     playlistItem.PlayMethod = directPlay.Value;
-                    playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, item.Path, options.Profile, DlnaProfileType.Video);
+                    playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Video);
 
                     if (subtitleStream != null)
                     {
@@ -1017,14 +1019,15 @@ namespace MediaBrowser.Model.Dlna
             }
 
             DeviceProfile profile = options.Profile;
+            string container = mediaSource.Container;
 
             // See if it can be direct played
             DirectPlayProfile directPlay = null;
-            foreach (var i in profile.DirectPlayProfiles)
+            foreach (var p in profile.DirectPlayProfiles)
             {
-                if (i.Type == DlnaProfileType.Video && IsVideoDirectPlaySupported(i, mediaSource, videoStream, audioStream))
+                if (p.Type == DlnaProfileType.Video && IsVideoDirectPlaySupported(p, container, videoStream, audioStream))
                 {
-                    directPlay = i;
+                    directPlay = p;
                     break;
                 }
             }
@@ -1032,23 +1035,23 @@ namespace MediaBrowser.Model.Dlna
             if (directPlay == null)
             {
                 _logger.LogInformation(
-                    "Profile: {0}, No video direct play profiles found for {1} with codec {2}",
-                    profile?.Name ?? "Unknown Profile",
-                    mediaSource?.Path ?? "Unknown path",
-                    videoStream?.Codec ?? "Unknown codec");
+                    "Container: {Container}, Video: {Video}, Audio: {Audio} cannot be direct played by profile: {Profile} for path: {Path}",
+                    container,
+                    videoStream?.Codec ?? "no video",
+                    audioStream?.Codec ?? "no audio",
+                    profile.Name ?? "unknown profile",
+                    mediaSource.Path ?? "unknown path");
 
                 return (null, GetTranscodeReasonsFromDirectPlayProfile(mediaSource, videoStream, audioStream, profile.DirectPlayProfiles));
             }
 
-            string container = mediaSource.Container;
-
             var conditions = new List<ProfileCondition>();
-            foreach (var i in profile.ContainerProfiles)
+            foreach (var p in profile.ContainerProfiles)
             {
-                if (i.Type == DlnaProfileType.Video
-                    && i.ContainsContainer(container))
+                if (p.Type == DlnaProfileType.Video
+                    && p.ContainsContainer(container))
                 {
-                    foreach (var c in i.Conditions)
+                    foreach (var c in p.Conditions)
                     {
                         conditions.Add(c);
                     }
@@ -1404,7 +1407,9 @@ namespace MediaBrowser.Model.Dlna
             {
                 _logger.LogInformation(
                     "Bitrate exceeds {PlayBackMethod} limit: media bitrate: {MediaBitrate}, max bitrate: {MaxBitrate}",
-                    playMethod, itemBitrate, requestedMaxBitrate);
+                    playMethod,
+                    itemBitrate,
+                    requestedMaxBitrate);
                 return false;
             }
 
@@ -1733,7 +1738,7 @@ namespace MediaBrowser.Model.Dlna
 
                                 if (condition.Condition == ProfileConditionType.Equals || condition.Condition == ProfileConditionType.EqualsAny)
                                 {
-                                    item.SetOption(qualifier, "profile", string.Join(",", values));
+                                    item.SetOption(qualifier, "profile", string.Join(',', values));
                                 }
                             }
 
@@ -1894,10 +1899,10 @@ namespace MediaBrowser.Model.Dlna
             return true;
         }
 
-        private bool IsVideoDirectPlaySupported(DirectPlayProfile profile, MediaSourceInfo item, MediaStream videoStream, MediaStream audioStream)
+        private bool IsVideoDirectPlaySupported(DirectPlayProfile profile, string container, MediaStream videoStream, MediaStream audioStream)
         {
             // Check container type
-            if (!profile.SupportsContainer(item.Container))
+            if (!profile.SupportsContainer(container))
             {
                 return false;
             }
diff --git a/MediaBrowser.Model/Dlna/StreamInfo.cs b/MediaBrowser.Model/Dlna/StreamInfo.cs
index 55b12ae810..252872847a 100644
--- a/MediaBrowser.Model/Dlna/StreamInfo.cs
+++ b/MediaBrowser.Model/Dlna/StreamInfo.cs
@@ -27,45 +27,6 @@ namespace MediaBrowser.Model.Dlna
             StreamOptions = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
         }
 
-        public void SetOption(string qualifier, string name, string value)
-        {
-            if (string.IsNullOrEmpty(qualifier))
-            {
-                SetOption(name, value);
-            }
-            else
-            {
-                SetOption(qualifier + "-" + name, value);
-            }
-        }
-
-        public void SetOption(string name, string value)
-        {
-            StreamOptions[name] = value;
-        }
-
-        public string GetOption(string qualifier, string name)
-        {
-            var value = GetOption(qualifier + "-" + name);
-
-            if (string.IsNullOrEmpty(value))
-            {
-                value = GetOption(name);
-            }
-
-            return value;
-        }
-
-        public string GetOption(string name)
-        {
-            if (StreamOptions.TryGetValue(name, out var value))
-            {
-                return value;
-            }
-
-            return null;
-        }
-
         public Guid ItemId { get; set; }
 
         public PlayMethod PlayMethod { get; set; }
@@ -152,374 +113,18 @@ namespace MediaBrowser.Model.Dlna
             PlayMethod == PlayMethod.DirectStream ||
             PlayMethod == PlayMethod.DirectPlay;
 
-        public string ToUrl(string baseUrl, string accessToken)
-        {
-            if (PlayMethod == PlayMethod.DirectPlay)
-            {
-                return MediaSource.Path;
-            }
-
-            if (string.IsNullOrEmpty(baseUrl))
-            {
-                throw new ArgumentNullException(nameof(baseUrl));
-            }
-
-            var list = new List<string>();
-            foreach (NameValuePair pair in BuildParams(this, accessToken))
-            {
-                if (string.IsNullOrEmpty(pair.Value))
-                {
-                    continue;
-                }
-
-                // Try to keep the url clean by omitting defaults
-                if (string.Equals(pair.Name, "StartTimeTicks", StringComparison.OrdinalIgnoreCase) &&
-                    string.Equals(pair.Value, "0", StringComparison.OrdinalIgnoreCase))
-                {
-                    continue;
-                }
-
-                if (string.Equals(pair.Name, "SubtitleStreamIndex", StringComparison.OrdinalIgnoreCase) &&
-                    string.Equals(pair.Value, "-1", StringComparison.OrdinalIgnoreCase))
-                {
-                    continue;
-                }
-
-                // Be careful, IsDirectStream==true by default (Static != false or not in query).
-                // See initialization of StreamingRequestDto in AudioController.GetAudioStream() method : Static = @static ?? true.
-                if (string.Equals(pair.Name, "Static", StringComparison.OrdinalIgnoreCase) &&
-                    string.Equals(pair.Value, "true", StringComparison.OrdinalIgnoreCase))
-                {
-                    continue;
-                }
-
-                var encodedValue = pair.Value.Replace(" ", "%20");
-
-                list.Add(string.Format(CultureInfo.InvariantCulture, "{0}={1}", pair.Name, encodedValue));
-            }
-
-            string queryString = string.Join("&", list.ToArray());
-
-            return GetUrl(baseUrl, queryString);
-        }
-
-        private string GetUrl(string baseUrl, string queryString)
-        {
-            if (string.IsNullOrEmpty(baseUrl))
-            {
-                throw new ArgumentNullException(nameof(baseUrl));
-            }
-
-            string extension = string.IsNullOrEmpty(Container) ? string.Empty : "." + Container;
-
-            baseUrl = baseUrl.TrimEnd('/');
-
-            if (MediaType == DlnaProfileType.Audio)
-            {
-                if (string.Equals(SubProtocol, "hls", StringComparison.OrdinalIgnoreCase))
-                {
-                    return string.Format(CultureInfo.InvariantCulture, "{0}/audio/{1}/master.m3u8?{2}", baseUrl, ItemId, queryString);
-                }
-
-                return string.Format(CultureInfo.InvariantCulture, "{0}/audio/{1}/stream{2}?{3}", baseUrl, ItemId, extension, queryString);
-            }
-
-            if (string.Equals(SubProtocol, "hls", StringComparison.OrdinalIgnoreCase))
-            {
-                return string.Format(CultureInfo.InvariantCulture, "{0}/videos/{1}/master.m3u8?{2}", baseUrl, ItemId, queryString);
-            }
-
-            return string.Format(CultureInfo.InvariantCulture, "{0}/videos/{1}/stream{2}?{3}", baseUrl, ItemId, extension, queryString);
-        }
-
-        private static List<NameValuePair> BuildParams(StreamInfo item, string accessToken)
-        {
-            var list = new List<NameValuePair>();
-
-            string audioCodecs = item.AudioCodecs.Length == 0 ?
-                string.Empty :
-                string.Join(",", item.AudioCodecs);
-
-            string videoCodecs = item.VideoCodecs.Length == 0 ?
-                string.Empty :
-                string.Join(",", item.VideoCodecs);
-
-            list.Add(new NameValuePair("DeviceProfileId", item.DeviceProfileId ?? string.Empty));
-            list.Add(new NameValuePair("DeviceId", item.DeviceId ?? string.Empty));
-            list.Add(new NameValuePair("MediaSourceId", item.MediaSourceId ?? string.Empty));
-            list.Add(new NameValuePair("Static", item.IsDirectStream.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
-            list.Add(new NameValuePair("VideoCodec", videoCodecs));
-            list.Add(new NameValuePair("AudioCodec", audioCodecs));
-            list.Add(new NameValuePair("AudioStreamIndex", item.AudioStreamIndex.HasValue ? item.AudioStreamIndex.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-            list.Add(new NameValuePair("SubtitleStreamIndex", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod != SubtitleDeliveryMethod.External ? item.SubtitleStreamIndex.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-            list.Add(new NameValuePair("VideoBitrate", item.VideoBitrate.HasValue ? item.VideoBitrate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-            list.Add(new NameValuePair("AudioBitrate", item.AudioBitrate.HasValue ? item.AudioBitrate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-            list.Add(new NameValuePair("AudioSampleRate", item.AudioSampleRate.HasValue ? item.AudioSampleRate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-
-            list.Add(new NameValuePair("MaxFramerate", item.MaxFramerate.HasValue ? item.MaxFramerate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-            list.Add(new NameValuePair("MaxWidth", item.MaxWidth.HasValue ? item.MaxWidth.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-            list.Add(new NameValuePair("MaxHeight", item.MaxHeight.HasValue ? item.MaxHeight.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-
-            long startPositionTicks = item.StartPositionTicks;
-
-            var isHls = string.Equals(item.SubProtocol, "hls", StringComparison.OrdinalIgnoreCase);
-
-            if (isHls)
-            {
-                list.Add(new NameValuePair("StartTimeTicks", string.Empty));
-            }
-            else
-            {
-                list.Add(new NameValuePair("StartTimeTicks", startPositionTicks.ToString(CultureInfo.InvariantCulture)));
-            }
-
-            list.Add(new NameValuePair("PlaySessionId", item.PlaySessionId ?? string.Empty));
-            list.Add(new NameValuePair("api_key", accessToken ?? string.Empty));
-
-            string liveStreamId = item.MediaSource?.LiveStreamId;
-            list.Add(new NameValuePair("LiveStreamId", liveStreamId ?? string.Empty));
-
-            list.Add(new NameValuePair("SubtitleMethod", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod != SubtitleDeliveryMethod.External ? item.SubtitleDeliveryMethod.ToString() : string.Empty));
-
-            if (!item.IsDirectStream)
-            {
-                if (item.RequireNonAnamorphic)
-                {
-                    list.Add(new NameValuePair("RequireNonAnamorphic", item.RequireNonAnamorphic.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
-                }
-
-                list.Add(new NameValuePair("TranscodingMaxAudioChannels", item.TranscodingMaxAudioChannels.HasValue ? item.TranscodingMaxAudioChannels.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
-
-                if (item.EnableSubtitlesInManifest)
-                {
-                    list.Add(new NameValuePair("EnableSubtitlesInManifest", item.EnableSubtitlesInManifest.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
-                }
-
-                if (item.EnableMpegtsM2TsMode)
-                {
-                    list.Add(new NameValuePair("EnableMpegtsM2TsMode", item.EnableMpegtsM2TsMode.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
-                }
-
-                if (item.EstimateContentLength)
-                {
-                    list.Add(new NameValuePair("EstimateContentLength", item.EstimateContentLength.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
-                }
-
-                if (item.TranscodeSeekInfo != TranscodeSeekInfo.Auto)
-                {
-                    list.Add(new NameValuePair("TranscodeSeekInfo", item.TranscodeSeekInfo.ToString().ToLowerInvariant()));
-                }
-
-                if (item.CopyTimestamps)
-                {
-                    list.Add(new NameValuePair("CopyTimestamps", item.CopyTimestamps.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
-                }
-
-                list.Add(new NameValuePair("RequireAvc", item.RequireAvc.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
-            }
-
-            list.Add(new NameValuePair("Tag", item.MediaSource.ETag ?? string.Empty));
-
-            string subtitleCodecs = item.SubtitleCodecs.Length == 0 ?
-               string.Empty :
-               string.Join(",", item.SubtitleCodecs);
-
-            list.Add(new NameValuePair("SubtitleCodec", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Embed ? subtitleCodecs : string.Empty));
-
-            if (isHls)
-            {
-                list.Add(new NameValuePair("SegmentContainer", item.Container ?? string.Empty));
-
-                if (item.SegmentLength.HasValue)
-                {
-                    list.Add(new NameValuePair("SegmentLength", item.SegmentLength.Value.ToString(CultureInfo.InvariantCulture)));
-                }
-
-                if (item.MinSegments.HasValue)
-                {
-                    list.Add(new NameValuePair("MinSegments", item.MinSegments.Value.ToString(CultureInfo.InvariantCulture)));
-                }
-
-                list.Add(new NameValuePair("BreakOnNonKeyFrames", item.BreakOnNonKeyFrames.ToString(CultureInfo.InvariantCulture)));
-            }
-
-            foreach (var pair in item.StreamOptions)
-            {
-                if (string.IsNullOrEmpty(pair.Value))
-                {
-                    continue;
-                }
-
-                // strip spaces to avoid having to encode h264 profile names
-                list.Add(new NameValuePair(pair.Key, pair.Value.Replace(" ", "")));
-            }
-
-            if (!item.IsDirectStream)
-            {
-                list.Add(new NameValuePair("TranscodeReasons", string.Join(",", item.TranscodeReasons.Distinct().Select(i => i.ToString()))));
-            }
-
-            return list;
-        }
-
-        public List<SubtitleStreamInfo> GetExternalSubtitles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, string baseUrl, string accessToken)
-        {
-            return GetExternalSubtitles(transcoderSupport, includeSelectedTrackOnly, false, baseUrl, accessToken);
-        }
-
-        public List<SubtitleStreamInfo> GetExternalSubtitles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, bool enableAllProfiles, string baseUrl, string accessToken)
-        {
-            var list = GetSubtitleProfiles(transcoderSupport, includeSelectedTrackOnly, enableAllProfiles, baseUrl, accessToken);
-            var newList = new List<SubtitleStreamInfo>();
-
-            // First add the selected track
-            foreach (SubtitleStreamInfo stream in list)
-            {
-                if (stream.DeliveryMethod == SubtitleDeliveryMethod.External)
-                {
-                    newList.Add(stream);
-                }
-            }
-
-            return newList;
-        }
-
-        public List<SubtitleStreamInfo> GetSubtitleProfiles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, string baseUrl, string accessToken)
-        {
-            return GetSubtitleProfiles(transcoderSupport, includeSelectedTrackOnly, false, baseUrl, accessToken);
-        }
-
-        public List<SubtitleStreamInfo> GetSubtitleProfiles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, bool enableAllProfiles, string baseUrl, string accessToken)
-        {
-            var list = new List<SubtitleStreamInfo>();
-
-            // HLS will preserve timestamps so we can just grab the full subtitle stream
-            long startPositionTicks = string.Equals(SubProtocol, "hls", StringComparison.OrdinalIgnoreCase)
-                ? 0
-                : (PlayMethod == PlayMethod.Transcode && !CopyTimestamps ? StartPositionTicks : 0);
-
-            // First add the selected track
-            if (SubtitleStreamIndex.HasValue)
-            {
-                foreach (var stream in MediaSource.MediaStreams)
-                {
-                    if (stream.Type == MediaStreamType.Subtitle && stream.Index == SubtitleStreamIndex.Value)
-                    {
-                        AddSubtitleProfiles(list, stream, transcoderSupport, enableAllProfiles, baseUrl, accessToken, startPositionTicks);
-                    }
-                }
-            }
-
-            if (!includeSelectedTrackOnly)
-            {
-                foreach (var stream in MediaSource.MediaStreams)
-                {
-                    if (stream.Type == MediaStreamType.Subtitle && (!SubtitleStreamIndex.HasValue || stream.Index != SubtitleStreamIndex.Value))
-                    {
-                        AddSubtitleProfiles(list, stream, transcoderSupport, enableAllProfiles, baseUrl, accessToken, startPositionTicks);
-                    }
-                }
-            }
-
-            return list;
-        }
-
-        private void AddSubtitleProfiles(List<SubtitleStreamInfo> list, MediaStream stream, ITranscoderSupport transcoderSupport, bool enableAllProfiles, string baseUrl, string accessToken, long startPositionTicks)
-        {
-            if (enableAllProfiles)
-            {
-                foreach (var profile in DeviceProfile.SubtitleProfiles)
-                {
-                    var info = GetSubtitleStreamInfo(stream, baseUrl, accessToken, startPositionTicks, new[] { profile }, transcoderSupport);
-
-                    list.Add(info);
-                }
-            }
-            else
-            {
-                var info = GetSubtitleStreamInfo(stream, baseUrl, accessToken, startPositionTicks, DeviceProfile.SubtitleProfiles, transcoderSupport);
-
-                list.Add(info);
-            }
-        }
-
-        private SubtitleStreamInfo GetSubtitleStreamInfo(MediaStream stream, string baseUrl, string accessToken, long startPositionTicks, SubtitleProfile[] subtitleProfiles, ITranscoderSupport transcoderSupport)
-        {
-            var subtitleProfile = StreamBuilder.GetSubtitleProfile(MediaSource, stream, subtitleProfiles, PlayMethod, transcoderSupport, Container, SubProtocol);
-            var info = new SubtitleStreamInfo
-            {
-                IsForced = stream.IsForced,
-                Language = stream.Language,
-                Name = stream.Language ?? "Unknown",
-                Format = subtitleProfile.Format,
-                Index = stream.Index,
-                DeliveryMethod = subtitleProfile.Method,
-                DisplayTitle = stream.DisplayTitle
-            };
-
-            if (info.DeliveryMethod == SubtitleDeliveryMethod.External)
-            {
-                if (MediaSource.Protocol == MediaProtocol.File || !string.Equals(stream.Codec, subtitleProfile.Format, StringComparison.OrdinalIgnoreCase) || !stream.IsExternal)
-                {
-                    info.Url = string.Format(CultureInfo.InvariantCulture, "{0}/Videos/{1}/{2}/Subtitles/{3}/{4}/Stream.{5}",
-                        baseUrl,
-                        ItemId,
-                        MediaSourceId,
-                        stream.Index.ToString(CultureInfo.InvariantCulture),
-                        startPositionTicks.ToString(CultureInfo.InvariantCulture),
-                        subtitleProfile.Format);
-
-                    if (!string.IsNullOrEmpty(accessToken))
-                    {
-                        info.Url += "?api_key=" + accessToken;
-                    }
-
-                    info.IsExternalUrl = false;
-                }
-                else
-                {
-                    info.Url = stream.Path;
-                    info.IsExternalUrl = true;
-                }
-            }
-
-            return info;
-        }
-
         /// <summary>
-        /// Returns the audio stream that will be used.
+        /// Gets the audio stream that will be used.
         /// </summary>
-        public MediaStream TargetAudioStream
-        {
-            get
-            {
-                if (MediaSource != null)
-                {
-                    return MediaSource.GetDefaultAudioStream(AudioStreamIndex);
-                }
-
-                return null;
-            }
-        }
+        public MediaStream TargetAudioStream => MediaSource?.GetDefaultAudioStream(AudioStreamIndex);
 
         /// <summary>
-        /// Returns the video stream that will be used.
+        /// Gets the video stream that will be used.
         /// </summary>
-        public MediaStream TargetVideoStream
-        {
-            get
-            {
-                if (MediaSource != null)
-                {
-                    return MediaSource.VideoStream;
-                }
-
-                return null;
-            }
-        }
+        public MediaStream TargetVideoStream => MediaSource?.VideoStream;
 
         /// <summary>
-        /// Predicts the audio sample rate that will be in the output stream.
+        /// Gets the audio sample rate that will be in the output stream.
         /// </summary>
         public int? TargetAudioSampleRate
         {
@@ -533,7 +138,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio sample rate that will be in the output stream.
+        /// Gets the audio sample rate that will be in the output stream.
         /// </summary>
         public int? TargetAudioBitDepth
         {
@@ -556,7 +161,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio sample rate that will be in the output stream.
+        /// Gets the audio sample rate that will be in the output stream.
         /// </summary>
         public int? TargetVideoBitDepth
         {
@@ -603,7 +208,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio sample rate that will be in the output stream.
+        /// Gets the audio sample rate that will be in the output stream.
         /// </summary>
         public float? TargetFramerate
         {
@@ -617,7 +222,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio sample rate that will be in the output stream.
+        /// Gets the audio sample rate that will be in the output stream.
         /// </summary>
         public double? TargetVideoLevel
         {
@@ -639,72 +244,8 @@ namespace MediaBrowser.Model.Dlna
             }
         }
 
-        public int? GetTargetVideoBitDepth(string codec)
-        {
-            var value = GetOption(codec, "videobitdepth");
-            if (string.IsNullOrEmpty(value))
-            {
-                return null;
-            }
-
-            if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
-            {
-                return result;
-            }
-
-            return null;
-        }
-
-        public int? GetTargetAudioBitDepth(string codec)
-        {
-            var value = GetOption(codec, "audiobitdepth");
-            if (string.IsNullOrEmpty(value))
-            {
-                return null;
-            }
-
-            if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
-            {
-                return result;
-            }
-
-            return null;
-        }
-
-        public double? GetTargetVideoLevel(string codec)
-        {
-            var value = GetOption(codec, "level");
-            if (string.IsNullOrEmpty(value))
-            {
-                return null;
-            }
-
-            if (double.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
-            {
-                return result;
-            }
-
-            return null;
-        }
-
-        public int? GetTargetRefFrames(string codec)
-        {
-            var value = GetOption(codec, "maxrefframes");
-            if (string.IsNullOrEmpty(value))
-            {
-                return null;
-            }
-
-            if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
-            {
-                return result;
-            }
-
-            return null;
-        }
-
         /// <summary>
-        /// Predicts the audio sample rate that will be in the output stream.
+        /// Gets the audio sample rate that will be in the output stream.
         /// </summary>
         public int? TargetPacketLength
         {
@@ -718,7 +259,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio sample rate that will be in the output stream.
+        /// Gets the audio sample rate that will be in the output stream.
         /// </summary>
         public string TargetVideoProfile
         {
@@ -756,7 +297,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio bitrate that will be in the output stream.
+        /// Gets the audio bitrate that will be in the output stream.
         /// </summary>
         public int? TargetAudioBitrate
         {
@@ -770,7 +311,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio channels that will be in the output stream.
+        /// Gets the audio channels that will be in the output stream.
         /// </summary>
         public int? TargetAudioChannels
         {
@@ -792,26 +333,8 @@ namespace MediaBrowser.Model.Dlna
             }
         }
 
-        public int? GetTargetAudioChannels(string codec)
-        {
-            var defaultValue = GlobalMaxAudioChannels ?? TranscodingMaxAudioChannels;
-
-            var value = GetOption(codec, "audiochannels");
-            if (string.IsNullOrEmpty(value))
-            {
-                return defaultValue;
-            }
-
-            if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
-            {
-                return Math.Min(result, defaultValue ?? result);
-            }
-
-            return defaultValue;
-        }
-
         /// <summary>
-        /// Predicts the audio codec that will be in the output stream.
+        /// Gets the audio codec that will be in the output stream.
         /// </summary>
         public string[] TargetAudioCodec
         {
@@ -864,7 +387,7 @@ namespace MediaBrowser.Model.Dlna
         }
 
         /// <summary>
-        /// Predicts the audio channels that will be in the output stream.
+        /// Gets the audio channels that will be in the output stream.
         /// </summary>
         public long? TargetSize
         {
@@ -1035,6 +558,461 @@ namespace MediaBrowser.Model.Dlna
             }
         }
 
+        public void SetOption(string qualifier, string name, string value)
+        {
+            if (string.IsNullOrEmpty(qualifier))
+            {
+                SetOption(name, value);
+            }
+            else
+            {
+                SetOption(qualifier + "-" + name, value);
+            }
+        }
+
+        public void SetOption(string name, string value)
+        {
+            StreamOptions[name] = value;
+        }
+
+        public string GetOption(string qualifier, string name)
+        {
+            var value = GetOption(qualifier + "-" + name);
+
+            if (string.IsNullOrEmpty(value))
+            {
+                value = GetOption(name);
+            }
+
+            return value;
+        }
+
+        public string GetOption(string name)
+        {
+            if (StreamOptions.TryGetValue(name, out var value))
+            {
+                return value;
+            }
+
+            return null;
+        }
+
+        public string ToUrl(string baseUrl, string accessToken)
+        {
+            if (PlayMethod == PlayMethod.DirectPlay)
+            {
+                return MediaSource.Path;
+            }
+
+            if (string.IsNullOrEmpty(baseUrl))
+            {
+                throw new ArgumentNullException(nameof(baseUrl));
+            }
+
+            var list = new List<string>();
+            foreach (NameValuePair pair in BuildParams(this, accessToken))
+            {
+                if (string.IsNullOrEmpty(pair.Value))
+                {
+                    continue;
+                }
+
+                // Try to keep the url clean by omitting defaults
+                if (string.Equals(pair.Name, "StartTimeTicks", StringComparison.OrdinalIgnoreCase) &&
+                    string.Equals(pair.Value, "0", StringComparison.OrdinalIgnoreCase))
+                {
+                    continue;
+                }
+
+                if (string.Equals(pair.Name, "SubtitleStreamIndex", StringComparison.OrdinalIgnoreCase) &&
+                    string.Equals(pair.Value, "-1", StringComparison.OrdinalIgnoreCase))
+                {
+                    continue;
+                }
+
+                if (string.Equals(pair.Name, "Static", StringComparison.OrdinalIgnoreCase) &&
+                    string.Equals(pair.Value, "false", StringComparison.OrdinalIgnoreCase))
+                {
+                    continue;
+                }
+
+                var encodedValue = pair.Value.Replace(" ", "%20");
+
+                list.Add(string.Format(CultureInfo.InvariantCulture, "{0}={1}", pair.Name, encodedValue));
+            }
+
+            string queryString = string.Join("&", list.ToArray());
+
+            return GetUrl(baseUrl, queryString);
+        }
+
+        private string GetUrl(string baseUrl, string queryString)
+        {
+            if (string.IsNullOrEmpty(baseUrl))
+            {
+                throw new ArgumentNullException(nameof(baseUrl));
+            }
+
+            string extension = string.IsNullOrEmpty(Container) ? string.Empty : "." + Container;
+
+            baseUrl = baseUrl.TrimEnd('/');
+
+            if (MediaType == DlnaProfileType.Audio)
+            {
+                if (string.Equals(SubProtocol, "hls", StringComparison.OrdinalIgnoreCase))
+                {
+                    return string.Format(CultureInfo.InvariantCulture, "{0}/audio/{1}/master.m3u8?{2}", baseUrl, ItemId, queryString);
+                }
+
+                return string.Format(CultureInfo.InvariantCulture, "{0}/audio/{1}/stream{2}?{3}", baseUrl, ItemId, extension, queryString);
+            }
+
+            if (string.Equals(SubProtocol, "hls", StringComparison.OrdinalIgnoreCase))
+            {
+                return string.Format(CultureInfo.InvariantCulture, "{0}/videos/{1}/master.m3u8?{2}", baseUrl, ItemId, queryString);
+            }
+
+            return string.Format(CultureInfo.InvariantCulture, "{0}/videos/{1}/stream{2}?{3}", baseUrl, ItemId, extension, queryString);
+        }
+
+        private static List<NameValuePair> BuildParams(StreamInfo item, string accessToken)
+        {
+            var list = new List<NameValuePair>();
+
+            string audioCodecs = item.AudioCodecs.Length == 0 ?
+                string.Empty :
+                string.Join(",", item.AudioCodecs);
+
+            string videoCodecs = item.VideoCodecs.Length == 0 ?
+                string.Empty :
+                string.Join(",", item.VideoCodecs);
+
+            list.Add(new NameValuePair("DeviceProfileId", item.DeviceProfileId ?? string.Empty));
+            list.Add(new NameValuePair("DeviceId", item.DeviceId ?? string.Empty));
+            list.Add(new NameValuePair("MediaSourceId", item.MediaSourceId ?? string.Empty));
+            list.Add(new NameValuePair("Static", item.IsDirectStream.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
+            list.Add(new NameValuePair("VideoCodec", videoCodecs));
+            list.Add(new NameValuePair("AudioCodec", audioCodecs));
+            list.Add(new NameValuePair("AudioStreamIndex", item.AudioStreamIndex.HasValue ? item.AudioStreamIndex.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+            list.Add(new NameValuePair("SubtitleStreamIndex", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod != SubtitleDeliveryMethod.External ? item.SubtitleStreamIndex.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+            list.Add(new NameValuePair("VideoBitrate", item.VideoBitrate.HasValue ? item.VideoBitrate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+            list.Add(new NameValuePair("AudioBitrate", item.AudioBitrate.HasValue ? item.AudioBitrate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+            list.Add(new NameValuePair("AudioSampleRate", item.AudioSampleRate.HasValue ? item.AudioSampleRate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+
+            list.Add(new NameValuePair("MaxFramerate", item.MaxFramerate.HasValue ? item.MaxFramerate.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+            list.Add(new NameValuePair("MaxWidth", item.MaxWidth.HasValue ? item.MaxWidth.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+            list.Add(new NameValuePair("MaxHeight", item.MaxHeight.HasValue ? item.MaxHeight.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+
+            long startPositionTicks = item.StartPositionTicks;
+
+            var isHls = string.Equals(item.SubProtocol, "hls", StringComparison.OrdinalIgnoreCase);
+
+            if (isHls)
+            {
+                list.Add(new NameValuePair("StartTimeTicks", string.Empty));
+            }
+            else
+            {
+                list.Add(new NameValuePair("StartTimeTicks", startPositionTicks.ToString(CultureInfo.InvariantCulture)));
+            }
+
+            list.Add(new NameValuePair("PlaySessionId", item.PlaySessionId ?? string.Empty));
+            list.Add(new NameValuePair("api_key", accessToken ?? string.Empty));
+
+            string liveStreamId = item.MediaSource?.LiveStreamId;
+            list.Add(new NameValuePair("LiveStreamId", liveStreamId ?? string.Empty));
+
+            list.Add(new NameValuePair("SubtitleMethod", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod != SubtitleDeliveryMethod.External ? item.SubtitleDeliveryMethod.ToString() : string.Empty));
+
+            if (!item.IsDirectStream)
+            {
+                if (item.RequireNonAnamorphic)
+                {
+                    list.Add(new NameValuePair("RequireNonAnamorphic", item.RequireNonAnamorphic.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
+                }
+
+                list.Add(new NameValuePair("TranscodingMaxAudioChannels", item.TranscodingMaxAudioChannels.HasValue ? item.TranscodingMaxAudioChannels.Value.ToString(CultureInfo.InvariantCulture) : string.Empty));
+
+                if (item.EnableSubtitlesInManifest)
+                {
+                    list.Add(new NameValuePair("EnableSubtitlesInManifest", item.EnableSubtitlesInManifest.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
+                }
+
+                if (item.EnableMpegtsM2TsMode)
+                {
+                    list.Add(new NameValuePair("EnableMpegtsM2TsMode", item.EnableMpegtsM2TsMode.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
+                }
+
+                if (item.EstimateContentLength)
+                {
+                    list.Add(new NameValuePair("EstimateContentLength", item.EstimateContentLength.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
+                }
+
+                if (item.TranscodeSeekInfo != TranscodeSeekInfo.Auto)
+                {
+                    list.Add(new NameValuePair("TranscodeSeekInfo", item.TranscodeSeekInfo.ToString().ToLowerInvariant()));
+                }
+
+                if (item.CopyTimestamps)
+                {
+                    list.Add(new NameValuePair("CopyTimestamps", item.CopyTimestamps.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
+                }
+
+                list.Add(new NameValuePair("RequireAvc", item.RequireAvc.ToString(CultureInfo.InvariantCulture).ToLowerInvariant()));
+            }
+
+            list.Add(new NameValuePair("Tag", item.MediaSource.ETag ?? string.Empty));
+
+            string subtitleCodecs = item.SubtitleCodecs.Length == 0 ?
+               string.Empty :
+               string.Join(",", item.SubtitleCodecs);
+
+            list.Add(new NameValuePair("SubtitleCodec", item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Embed ? subtitleCodecs : string.Empty));
+
+            if (isHls)
+            {
+                list.Add(new NameValuePair("SegmentContainer", item.Container ?? string.Empty));
+
+                if (item.SegmentLength.HasValue)
+                {
+                    list.Add(new NameValuePair("SegmentLength", item.SegmentLength.Value.ToString(CultureInfo.InvariantCulture)));
+                }
+
+                if (item.MinSegments.HasValue)
+                {
+                    list.Add(new NameValuePair("MinSegments", item.MinSegments.Value.ToString(CultureInfo.InvariantCulture)));
+                }
+
+                list.Add(new NameValuePair("BreakOnNonKeyFrames", item.BreakOnNonKeyFrames.ToString(CultureInfo.InvariantCulture)));
+            }
+
+            foreach (var pair in item.StreamOptions)
+            {
+                if (string.IsNullOrEmpty(pair.Value))
+                {
+                    continue;
+                }
+
+                // strip spaces to avoid having to encode h264 profile names
+                list.Add(new NameValuePair(pair.Key, pair.Value.Replace(" ", string.Empty)));
+            }
+
+            if (!item.IsDirectStream)
+            {
+                list.Add(new NameValuePair("TranscodeReasons", string.Join(',', item.TranscodeReasons.Distinct())));
+            }
+
+            return list;
+        }
+
+        public List<SubtitleStreamInfo> GetExternalSubtitles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, string baseUrl, string accessToken)
+        {
+            return GetExternalSubtitles(transcoderSupport, includeSelectedTrackOnly, false, baseUrl, accessToken);
+        }
+
+        public List<SubtitleStreamInfo> GetExternalSubtitles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, bool enableAllProfiles, string baseUrl, string accessToken)
+        {
+            var list = GetSubtitleProfiles(transcoderSupport, includeSelectedTrackOnly, enableAllProfiles, baseUrl, accessToken);
+            var newList = new List<SubtitleStreamInfo>();
+
+            // First add the selected track
+            foreach (SubtitleStreamInfo stream in list)
+            {
+                if (stream.DeliveryMethod == SubtitleDeliveryMethod.External)
+                {
+                    newList.Add(stream);
+                }
+            }
+
+            return newList;
+        }
+
+        public List<SubtitleStreamInfo> GetSubtitleProfiles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, string baseUrl, string accessToken)
+        {
+            return GetSubtitleProfiles(transcoderSupport, includeSelectedTrackOnly, false, baseUrl, accessToken);
+        }
+
+        public List<SubtitleStreamInfo> GetSubtitleProfiles(ITranscoderSupport transcoderSupport, bool includeSelectedTrackOnly, bool enableAllProfiles, string baseUrl, string accessToken)
+        {
+            var list = new List<SubtitleStreamInfo>();
+
+            // HLS will preserve timestamps so we can just grab the full subtitle stream
+            long startPositionTicks = string.Equals(SubProtocol, "hls", StringComparison.OrdinalIgnoreCase)
+                ? 0
+                : (PlayMethod == PlayMethod.Transcode && !CopyTimestamps ? StartPositionTicks : 0);
+
+            // First add the selected track
+            if (SubtitleStreamIndex.HasValue)
+            {
+                foreach (var stream in MediaSource.MediaStreams)
+                {
+                    if (stream.Type == MediaStreamType.Subtitle && stream.Index == SubtitleStreamIndex.Value)
+                    {
+                        AddSubtitleProfiles(list, stream, transcoderSupport, enableAllProfiles, baseUrl, accessToken, startPositionTicks);
+                    }
+                }
+            }
+
+            if (!includeSelectedTrackOnly)
+            {
+                foreach (var stream in MediaSource.MediaStreams)
+                {
+                    if (stream.Type == MediaStreamType.Subtitle && (!SubtitleStreamIndex.HasValue || stream.Index != SubtitleStreamIndex.Value))
+                    {
+                        AddSubtitleProfiles(list, stream, transcoderSupport, enableAllProfiles, baseUrl, accessToken, startPositionTicks);
+                    }
+                }
+            }
+
+            return list;
+        }
+
+        private void AddSubtitleProfiles(List<SubtitleStreamInfo> list, MediaStream stream, ITranscoderSupport transcoderSupport, bool enableAllProfiles, string baseUrl, string accessToken, long startPositionTicks)
+        {
+            if (enableAllProfiles)
+            {
+                foreach (var profile in DeviceProfile.SubtitleProfiles)
+                {
+                    var info = GetSubtitleStreamInfo(stream, baseUrl, accessToken, startPositionTicks, new[] { profile }, transcoderSupport);
+
+                    list.Add(info);
+                }
+            }
+            else
+            {
+                var info = GetSubtitleStreamInfo(stream, baseUrl, accessToken, startPositionTicks, DeviceProfile.SubtitleProfiles, transcoderSupport);
+
+                list.Add(info);
+            }
+        }
+
+        private SubtitleStreamInfo GetSubtitleStreamInfo(MediaStream stream, string baseUrl, string accessToken, long startPositionTicks, SubtitleProfile[] subtitleProfiles, ITranscoderSupport transcoderSupport)
+        {
+            var subtitleProfile = StreamBuilder.GetSubtitleProfile(MediaSource, stream, subtitleProfiles, PlayMethod, transcoderSupport, Container, SubProtocol);
+            var info = new SubtitleStreamInfo
+            {
+                IsForced = stream.IsForced,
+                Language = stream.Language,
+                Name = stream.Language ?? "Unknown",
+                Format = subtitleProfile.Format,
+                Index = stream.Index,
+                DeliveryMethod = subtitleProfile.Method,
+                DisplayTitle = stream.DisplayTitle
+            };
+
+            if (info.DeliveryMethod == SubtitleDeliveryMethod.External)
+            {
+                if (MediaSource.Protocol == MediaProtocol.File || !string.Equals(stream.Codec, subtitleProfile.Format, StringComparison.OrdinalIgnoreCase) || !stream.IsExternal)
+                {
+                    info.Url = string.Format(
+                        CultureInfo.InvariantCulture,
+                        "{0}/Videos/{1}/{2}/Subtitles/{3}/{4}/Stream.{5}",
+                        baseUrl,
+                        ItemId,
+                        MediaSourceId,
+                        stream.Index.ToString(CultureInfo.InvariantCulture),
+                        startPositionTicks.ToString(CultureInfo.InvariantCulture),
+                        subtitleProfile.Format);
+
+                    if (!string.IsNullOrEmpty(accessToken))
+                    {
+                        info.Url += "?api_key=" + accessToken;
+                    }
+
+                    info.IsExternalUrl = false;
+                }
+                else
+                {
+                    info.Url = stream.Path;
+                    info.IsExternalUrl = true;
+                }
+            }
+
+            return info;
+        }
+
+        public int? GetTargetVideoBitDepth(string codec)
+        {
+            var value = GetOption(codec, "videobitdepth");
+            if (string.IsNullOrEmpty(value))
+            {
+                return null;
+            }
+
+            if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
+            {
+                return result;
+            }
+
+            return null;
+        }
+
+        public int? GetTargetAudioBitDepth(string codec)
+        {
+            var value = GetOption(codec, "audiobitdepth");
+            if (string.IsNullOrEmpty(value))
+            {
+                return null;
+            }
+
+            if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
+            {
+                return result;
+            }
+
+            return null;
+        }
+
+        public double? GetTargetVideoLevel(string codec)
+        {
+            var value = GetOption(codec, "level");
+            if (string.IsNullOrEmpty(value))
+            {
+                return null;
+            }
+
+            if (double.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
+            {
+                return result;
+            }
+
+            return null;
+        }
+
+        public int? GetTargetRefFrames(string codec)
+        {
+            var value = GetOption(codec, "maxrefframes");
+            if (string.IsNullOrEmpty(value))
+            {
+                return null;
+            }
+
+            if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var result))
+            {
+                return result;
+            }
+
+            return null;
+        }
+
+        public int? GetTargetAudioChannels(string codec)
+        {
+            var defaultValue = GlobalMaxAudioChannels ?? TranscodingMaxAudioChannels;
+
+            var value = GetOption(codec, "audiochannels");
+            if (string.IsNullOrEmpty(value))
+            {
+                return defaultValue;
+            }
+
+            if (int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
+            {
+                return Math.Min(result, defaultValue ?? result);
+            }
+
+            return defaultValue;
+        }
+
         private int? GetMediaStreamCount(MediaStreamType type, int limit)
         {
             var count = MediaSource.GetStreamCount(type);
diff --git a/MediaBrowser.Model/Dlna/SubtitleDeliveryMethod.cs b/MediaBrowser.Model/Dlna/SubtitleDeliveryMethod.cs
index e7fe8d6af2..9b39f9e11a 100644
--- a/MediaBrowser.Model/Dlna/SubtitleDeliveryMethod.cs
+++ b/MediaBrowser.Model/Dlna/SubtitleDeliveryMethod.cs
@@ -2,25 +2,28 @@
 
 namespace MediaBrowser.Model.Dlna
 {
+    /// <summary>
+    /// Delivery method to use during playback of a specific subtitle format.
+    /// </summary>
     public enum SubtitleDeliveryMethod
     {
         /// <summary>
-        /// The encode.
+        /// Burn the subtitles in the video track.
         /// </summary>
         Encode = 0,
 
         /// <summary>
-        /// The embed.
+        /// Embed the subtitles in the file or stream.
         /// </summary>
         Embed = 1,
 
         /// <summary>
-        /// The external.
+        /// Serve the subtitles as an external file.
         /// </summary>
         External = 2,
 
         /// <summary>
-        /// The HLS.
+        /// Serve the subtitles as a separate HLS stream.
         /// </summary>
         Hls = 3
     }
diff --git a/MediaBrowser.Model/Dlna/TranscodingProfile.cs b/MediaBrowser.Model/Dlna/TranscodingProfile.cs
index f05e31047c..214578a85e 100644
--- a/MediaBrowser.Model/Dlna/TranscodingProfile.cs
+++ b/MediaBrowser.Model/Dlna/TranscodingProfile.cs
@@ -1,6 +1,7 @@
-#nullable disable
 #pragma warning disable CS1591
 
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
 using System.Xml.Serialization;
 
 namespace MediaBrowser.Model.Dlna
@@ -8,47 +9,56 @@ namespace MediaBrowser.Model.Dlna
     public class TranscodingProfile
     {
         [XmlAttribute("container")]
-        public string Container { get; set; }
+        public string Container { get; set; } = string.Empty;
 
         [XmlAttribute("type")]
         public DlnaProfileType Type { get; set; }
 
         [XmlAttribute("videoCodec")]
-        public string VideoCodec { get; set; }
+        public string VideoCodec { get; set; } = string.Empty;
 
         [XmlAttribute("audioCodec")]
-        public string AudioCodec { get; set; }
+        public string AudioCodec { get; set; } = string.Empty;
 
         [XmlAttribute("protocol")]
-        public string Protocol { get; set; }
+        public string Protocol { get; set; } = string.Empty;
 
+        [DefaultValue(false)]
         [XmlAttribute("estimateContentLength")]
         public bool EstimateContentLength { get; set; }
 
+        [DefaultValue(false)]
         [XmlAttribute("enableMpegtsM2TsMode")]
         public bool EnableMpegtsM2TsMode { get; set; }
 
+        [DefaultValue(TranscodeSeekInfo.Auto)]
         [XmlAttribute("transcodeSeekInfo")]
         public TranscodeSeekInfo TranscodeSeekInfo { get; set; }
 
+        [DefaultValue(false)]
         [XmlAttribute("copyTimestamps")]
         public bool CopyTimestamps { get; set; }
 
+        [DefaultValue(EncodingContext.Streaming)]
         [XmlAttribute("context")]
         public EncodingContext Context { get; set; }
 
+        [DefaultValue(false)]
         [XmlAttribute("enableSubtitlesInManifest")]
         public bool EnableSubtitlesInManifest { get; set; }
 
         [XmlAttribute("maxAudioChannels")]
-        public string MaxAudioChannels { get; set; }
+        public string? MaxAudioChannels { get; set; }
 
+        [DefaultValue(0)]
         [XmlAttribute("minSegments")]
         public int MinSegments { get; set; }
 
+        [DefaultValue(0)]
         [XmlAttribute("segmentLength")]
         public int SegmentLength { get; set; }
 
+        [DefaultValue(false)]
         [XmlAttribute("breakOnNonKeyFrames")]
         public bool BreakOnNonKeyFrames { get; set; }
 
diff --git a/MediaBrowser.Model/Dlna/UpnpDeviceInfo.cs b/MediaBrowser.Model/Dlna/UpnpDeviceInfo.cs
index d71013f019..987a3a908f 100644
--- a/MediaBrowser.Model/Dlna/UpnpDeviceInfo.cs
+++ b/MediaBrowser.Model/Dlna/UpnpDeviceInfo.cs
@@ -16,5 +16,7 @@ namespace MediaBrowser.Model.Dlna
         public IPAddress LocalIpAddress { get; set; }
 
         public int LocalPort { get; set; }
+
+        public IPAddress RemoteIpAddress { get; set; }
     }
 }