commit 19026c822dba506482cfa27e78c1c05bb2b7fe0b
author Seungha Yang <seungha.yang@navercorp.com> Mon Apr 30 19:49:20 2018 +0900
committer Tim-Philipp Müller <tim@centricular.com> Tue May 01 10:12:22 2018 +0100
tree fdefa6a2ed2d839e10f222515d51cbf623bd068c
parent 3dfe9dbb70f08cb71f89aa13825a604c3c392ca8

tagmux: Reset final tags for reusing element

If the output tag had been exposed, it never ever updated
even if we reset the tagmux using state change.

https://bugzilla.gnome.org/show_bug.cgi?id=795691

gst-libs/gst/tag/gsttagmux.c

diff --git a/gst-libs/gst/tag/gsttagmux.c b/gst-libs/gst/tag/gsttagmux.c
index df0ac8b..f9aa024 100644
--- a/gst-libs/gst/tag/gsttagmux.c
+++ b/gst-libs/gst/tag/gsttagmux.c
@@ -537,6 +537,10 @@
         gst_tag_list_unref (mux->priv->event_tags);
         mux->priv->event_tags = NULL;
       }
+      if (mux->priv->final_tags) {
+        gst_tag_list_unref (mux->priv->final_tags);
+        mux->priv->final_tags = NULL;
+      }
       mux->priv->start_tag_size = 0;
       mux->priv->end_tag_size = 0;
       mux->priv->render_start_tag = TRUE;