Update code docs

Author: jellyrock-bot

docs/source_api_Items.bs.html

@@ -30,10 +30,10 @@
     params.EnableDirectPlay = false
   end if
 
-  if audioTrackIndex > -1 and isValid(videoMetadata) and isValid(videoMetadata.MediaStreams)
+  if audioTrackIndex > -1 and isValid(videoMetadata) and isValid(videoMetadata.json) and isValid(videoMetadata.json.MediaStreams)
     ' Find the audio stream with the matching Jellyfin index
     selectedAudioStream = invalid
-    for each stream in videoMetadata.MediaStreams
+    for each stream in videoMetadata.json.MediaStreams
       if isValid(stream.index) and stream.index = audioTrackIndex
         selectedAudioStream = stream
         exit for