Merge ff42378834 into eb221c3e49

If the title is missing from the analysis metadata, the analysis fails.  Added null check and default value of "TitleValueNotSet".

FFMpegCore/FFProbe/MediaAnalysis.cs

@@ -30,9 +30,12 @@ private MediaFormat ParseFormat(Format analysisFormat)
             };
         }
 
+        private string GetValue(string tagName, Dictionary<string, string>? tags, string defaultValue) =>
+            tags == null ? defaultValue : tags.TryGetValue(tagName, out var value) ? value : defaultValue;    
+
         private ChapterData ParseChapter(Chapter analysisChapter)
         {
-            var title = analysisChapter.Tags.FirstOrDefault(t => t.Key == "title").Value;
+            var title = GetValue("title", analysisChapter.Tags, "TitleValueNotSet");
             var start = MediaAnalysisUtils.ParseDuration(analysisChapter.StartTime);
             var end = MediaAnalysisUtils.ParseDuration(analysisChapter.EndTime);