Fix ffmpeg analyze duration env var taking priority over media source

MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs

@@ -4976,13 +4976,13 @@ namespace MediaBrowser.Controller.MediaEncoding
             // The default value of -probesize is more than enough, so leave it as is.
             var ffmpegAnalyzeDuration = _config.GetFFmpegAnalyzeDuration() ?? string.Empty;
 
-            if (!string.IsNullOrEmpty(ffmpegAnalyzeDuration))
+            if (state.MediaSource.AnalyzeDurationMs > 0)
             {
-                analyzeDurationArgument = "-analyzeduration " + ffmpegAnalyzeDuration;
+                analyzeDurationArgument = "-analyzeduration " + (state.MediaSource.AnalyzeDurationMs.Value * 1000).ToString(CultureInfo.InvariantCulture);
             }
-            else if (state.MediaSource.AnalyzeDurationMs.HasValue)
+            else if (!string.IsNullOrEmpty(ffmpegAnalyzeDuration))
             {
-                analyzeDurationArgument = "-analyzeduration " + (state.MediaSource.AnalyzeDurationMs.Value * 1000).ToString(CultureInfo.InvariantCulture);
+                analyzeDurationArgument = "-analyzeduration " + ffmpegAnalyzeDuration;
             }
 
             if (!string.IsNullOrEmpty(analyzeDurationArgument))

MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs

@@ -376,15 +376,15 @@ namespace MediaBrowser.MediaEncoding.Encoder
             string analyzeDuration = string.Empty;
             string ffmpegAnalyzeDuration = _config.GetFFmpegAnalyzeDuration() ?? string.Empty;
 
-            if (!string.IsNullOrEmpty(ffmpegAnalyzeDuration))
-            {
-                analyzeDuration = "-analyzeduration " + ffmpegAnalyzeDuration;
-            }
-            else if (request.MediaSource.AnalyzeDurationMs > 0)
+            if (request.MediaSource.AnalyzeDurationMs > 0)
             {
                 analyzeDuration = "-analyzeduration " +
                                   (request.MediaSource.AnalyzeDurationMs * 1000).ToString();
             }
+            else if (!string.IsNullOrEmpty(ffmpegAnalyzeDuration))
+            {
+                analyzeDuration = "-analyzeduration " + ffmpegAnalyzeDuration;
+            }
 
             var forceEnableLogging = request.MediaSource.Protocol != MediaProtocol.File;