Added setting to toggle autoplaying of prim media, independent of parcel media. Audio autoplay also now yieds to sounds being stopped via nearby media panel.

indra/newview/app_settings/settings.xml

@@ -10432,6 +10432,17 @@ This should be as low as possible, but too low may break functionality</string>
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>PrimMediaAutoPlayEnable</key>
+    <map>
+      <key>Comment</key>
+      <string>Auto play prim media when available</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>PerAccountSettingsFile</key>
     <map>
       <key>Comment</key>