update NAL usage

MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs

@@ -828,7 +828,7 @@ namespace MediaBrowser.Api.Playback.Hls
             // See if we can save come cpu cycles by avoiding encoding
             if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
             {
-                if (state.VideoStream != null && IsH264(state.VideoStream) && !string.IsNullOrWhiteSpace(state.VideoStream.NalLengthSize))
+                if (state.VideoStream != null && IsH264(state.VideoStream) && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
                 {
                     Logger.Debug("Enabling h264_mp4toannexb due to nal_length_size of {0}", state.VideoStream.NalLengthSize);
                     args += " -bsf:v h264_mp4toannexb";

MediaBrowser.Api/Playback/Hls/VideoHlsService.cs

@@ -87,7 +87,7 @@ namespace MediaBrowser.Api.Playback.Hls
             if (codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
             {
                 // if h264_mp4toannexb is ever added, do not use it for live tv
-                if (state.VideoStream != null && IsH264(state.VideoStream) && !string.IsNullOrWhiteSpace(state.VideoStream.NalLengthSize))
+                if (state.VideoStream != null && IsH264(state.VideoStream) && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
                 {
                     Logger.Debug("Enabling h264_mp4toannexb due to nal_length_size of {0}", state.VideoStream.NalLengthSize);
                     args += " -bsf:v h264_mp4toannexb";

MediaBrowser.Api/Playback/Progressive/VideoService.cs

@@ -139,7 +139,7 @@ namespace MediaBrowser.Api.Playback.Progressive
 
             if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
             {
-                if (state.VideoStream != null && IsH264(state.VideoStream) && string.Equals(state.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) && !string.IsNullOrWhiteSpace(state.VideoStream.NalLengthSize))
+                if (state.VideoStream != null && IsH264(state.VideoStream) && string.Equals(state.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
                 {
                     Logger.Debug("Enabling h264_mp4toannexb due to nal_length_size of {0}", state.VideoStream.NalLengthSize);
                     args += " -bsf:v h264_mp4toannexb";

MediaBrowser.MediaEncoding/Encoder/VideoEncoder.cs

@@ -73,7 +73,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
 
             if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
             {
-                if (state.VideoStream != null && IsH264(state.VideoStream) && string.Equals(state.Options.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) && !string.IsNullOrWhiteSpace(state.VideoStream.NalLengthSize))
+                if (state.VideoStream != null && IsH264(state.VideoStream) && string.Equals(state.Options.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
                 {
                     Logger.Debug("Enabling h264_mp4toannexb due to nal_length_size of {0}", state.VideoStream.NalLengthSize);
                     args += " -bsf:v h264_mp4toannexb";

MediaBrowser.Server.Implementations/LiveTv/LiveTvManager.cs

@@ -511,8 +511,15 @@ namespace MediaBrowser.Server.Implementations.LiveTv
             if (!(service is EmbyTV.EmbyTV))
             {
                 // We can't trust that we'll be able to direct stream it through emby server,  no matter what the provider says
-                mediaSource.SupportsDirectStream = true;
+                mediaSource.SupportsDirectStream = false;
                 mediaSource.SupportsTranscoding = true;
+                foreach (var stream in mediaSource.MediaStreams)
+                {
+                    if (stream.Type == MediaStreamType.Video && string.IsNullOrWhiteSpace(stream.NalLengthSize))
+                    {
+                        stream.NalLengthSize = "0";
+                    }
+                }
             }
         }
 

MediaBrowser.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs

@@ -317,6 +317,12 @@ namespace MediaBrowser.Server.Implementations.LiveTv.TunerHosts.HdHomerun
                 videoCodec = "mpeg2video";
             }
 
+            string nal = null;
+            if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
+            {
+                nal = "0";
+            }
+
             var url = GetApiUrl(info, true) + "/auto/v" + channelId;
 
             if (!string.IsNullOrWhiteSpace(profile) && !string.Equals(profile, "native", StringComparison.OrdinalIgnoreCase))
@@ -339,7 +345,8 @@ namespace MediaBrowser.Server.Implementations.LiveTv.TunerHosts.HdHomerun
                                 Codec = videoCodec,
                                 Width = width,
                                 Height = height,
-                                BitRate = videoBitrate
+                                BitRate = videoBitrate,
+                                NalLengthSize = nal
 
                             },
                             new MediaStream