media-export: Make harvesting of metadata optional

This commit introduces a new boolean configuration setting called
"extract-metadata" which disables harvesting completely. If not
configured, it defaults to "false"

This will also renders virtual folders useless since those are based on
metadata.

diff --git a/src/plugins/media-export/rygel-media-export-metadata-extractor.vala b/src/plugins/media-export/rygel-media-export-metadata-extractor.vala
index 03b3033..7c83a1c 100644 (file)
--- a/src/plugins/media-export/rygel-media-export-metadata-extractor.vala
+++ b/src/plugins/media-export/rygel-media-export-metadata-extractor.vala
@@ -107,8 +107,18 @@ public class Rygel.MediaExport.MetadataExtractor: GLib.Object {
     }
 
     public static MetadataExtractor? create() {
-        if (factory == null) {
-            debug ("Checking for gstreamer element 'playbin'...");
+        var config = MetaConfig.get_default ();
+        bool extract_metadata;
+
+        try {
+            extract_metadata = config.get_bool ("MediaExport",
+                                                "extract-metadata");
+        } catch (Error error) {
+            extract_metadata = false;
+        }
+
+        if (factory == null && extract_metadata) {
+            debug ("Checking for gstreamer element 'playbin'..."));
             var factory = ElementFactory.find("playbin2");
             if (factory != null) {
                 debug (_("Using playbin2"));