[tracker-miners] extract/gstreamer: blacklist video4linux2 plugin

[Robert McQueen <ramcq src gnome org>]

commit 1e54b9000320521368c727f2a1dad78535c95ce2
Author: Robert McQueen <rob endlessm com>
Date:   Thu Nov 16 14:41:10 2017 +0000

    extract/gstreamer: blacklist video4linux2 plugin
    
    Avoid attempting to use V4L2 hardware-accelerated decoders, which
    can keep scarce hardware units busy and prevent user-facing applications
    from using hardware accelerated decode.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790457

 src/tracker-extract/tracker-extract-gstreamer.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-gstreamer.c b/src/tracker-extract/tracker-extract-gstreamer.c
index b26313b..2802fb8 100644
--- a/src/tracker-extract/tracker-extract-gstreamer.c
+++ b/src/tracker-extract/tracker-extract-gstreamer.c
@@ -1296,7 +1296,8 @@ tracker_extract_module_init (GError **error)
        /* Lifted from totem-video-thumbnailer */
        const gchar *blacklisted[] = {
                "bcmdec",
-               "vaapi"
+               "vaapi",
+               "video4linux2"
        };
        GstRegistry *registry;
        guint i;