support EnableMpegtsM2TsMode

MediaBrowser.Api/Playback/Progressive/VideoService.cs

@@ -138,6 +138,11 @@ namespace MediaBrowser.Api.Playback.Progressive
                 return state.VideoStream != null && IsH264(state.VideoStream) ? args + " -bsf h264_mp4toannexb" : args;
             }
 
+            if (state.EnableMpegtsM2TsMode)
+            {
+                args += " -mpegts_m2ts_mode 1";
+            }
+
             const string keyFrameArg = " -force_key_frames expr:if(isnan(prev_forced_t),gte(t,.1),gte(t,prev_forced_t+5))";
 
             args += keyFrameArg;