[tracker] tracker-extract: Take gstreamer initialization to plugin init phase

[Carlos Garnacho <carlosg src gnome org>]

commit 50c3441405307029f081d0235168a3d5021920c0
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jan 30 11:22:27 2017 +0100

    tracker-extract: Take gstreamer initialization to plugin init phase
    
    The gst_init() call may end up rebuilding the registry, so should be
    happening outside the sandbox.

 src/tracker-extract/tracker-extract-gstreamer.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-gstreamer.c b/src/tracker-extract/tracker-extract-gstreamer.c
index c878c16..889ca60 100644
--- a/src/tracker-extract/tracker-extract-gstreamer.c
+++ b/src/tracker-extract/tracker-extract-gstreamer.c
@@ -1319,8 +1319,6 @@ tracker_extract_gstreamer (const gchar          *uri,
 
        g_return_val_if_fail (uri, NULL);
 
-       gst_init (NULL, NULL);
-
        extractor = g_slice_new0 (MetadataExtractor);
        extractor->mime = type;
        extractor->tagcache = gst_tag_list_new_empty ();
@@ -1466,3 +1464,10 @@ tracker_extract_get_metadata (TrackerExtractInfo *info)
        g_free (uri);
        return TRUE;
 }
+
+G_MODULE_EXPORT gboolean
+tracker_extract_module_init (GError **error)
+{
+       gst_init (NULL, NULL);
+       return TRUE;
+}