From 2e25b024cc55c099f162e96c3fd9ac96865ab42a Mon Sep 17 00:00:00 2001
From: Stefan Kost <ensonic@users.sourceforge.net>
Date: Tue, 16 Dec 2008 14:05:40 +0000
Subject: [PATCH] Add function to reset tagsetter for element reuse.

Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gsttagsetter.c:
* gst/gsttagsetter.h:
Add function to reset tagsetter for element reuse.
API: gst_tag_setter_flush()
---
 ChangeLog                       |  8 ++++++++
 docs/gst/gstreamer-sections.txt |  1 +
 gst/gsttagsetter.c              | 26 ++++++++++++++++++++++++--
 gst/gsttagsetter.h              |  2 ++
 4 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 899321a7b2..8436b711b7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-12-16  Stefan Kost  <ensonic@users.sf.net>
+
+	* docs/gst/gstreamer-sections.txt:
+	* gst/gsttagsetter.c:
+	* gst/gsttagsetter.h:
+	  Add function to reset tagsetter for element reuse.
+	  API: gst_tag_setter_flush()
+
 2008-12-16  Stefan Kost  <ensonic@users.sf.net>
 
 	* gst/gsttaglist.c:
diff --git a/docs/gst/gstreamer-sections.txt b/docs/gst/gstreamer-sections.txt
index 27bc89c0dd..53edf8701a 100644
--- a/docs/gst/gstreamer-sections.txt
+++ b/docs/gst/gstreamer-sections.txt
@@ -2107,6 +2107,7 @@ gst_tag_merge_mode_get_type
 <TITLE>GstTagSetter</TITLE>
 GstTagSetter
 GstTagSetterIFace
+gst_tag_setter_flush
 gst_tag_setter_merge_tags
 gst_tag_setter_add_tags
 gst_tag_setter_add_tag_values
diff --git a/gst/gsttagsetter.c b/gst/gsttagsetter.c
index 06c78061ea..6d6f44cce3 100644
--- a/gst/gsttagsetter.c
+++ b/gst/gsttagsetter.c
@@ -86,8 +86,7 @@ typedef struct
 {
   GstTagMergeMode mode;
   GstTagList *list;
-}
-GstTagData;
+} GstTagData;
 
 GType
 gst_tag_setter_get_type (void)
@@ -120,6 +119,7 @@ gst_tag_setter_get_type (void)
 
   return tag_setter_type;
 }
+
 static void
 gst_tag_data_free (gpointer p)
 {
@@ -130,6 +130,7 @@ gst_tag_data_free (gpointer p)
 
   g_free (data);
 }
+
 static GstTagData *
 gst_tag_setter_get_data (GstTagSetter * setter)
 {
@@ -147,6 +148,27 @@ gst_tag_setter_get_data (GstTagSetter * setter)
   return data;
 }
 
+/**
+ * gst_tag_setter_flush:
+ * @setter: a #GstTagSetter
+ *
+ * Reset the internal taglist. Elements should call this from within the
+ * state-change handler.
+ */
+void
+gst_tag_setter_flush (GstTagSetter * setter)
+{
+  GstTagData *data;
+
+  g_return_if_fail (GST_IS_TAG_SETTER (setter));
+
+  data = gst_tag_setter_get_data (setter);
+  if (data->list) {
+    gst_tag_list_free (data->list);
+    data->list = NULL;
+  }
+}
+
 /**
  * gst_tag_setter_merge_tags:
  * @setter: a #GstTagSetter
diff --git a/gst/gsttagsetter.h b/gst/gsttagsetter.h
index f7941c1805..c024a751a0 100644
--- a/gst/gsttagsetter.h
+++ b/gst/gsttagsetter.h
@@ -58,6 +58,8 @@ struct _GstTagSetterIFace
 
 GType		gst_tag_setter_get_type		    (void);
 
+void		gst_tag_setter_flush                  (GstTagSetter * setter);
+
 void		gst_tag_setter_merge_tags	    (GstTagSetter *	setter,
 						     const GstTagList *	list,
 						     GstTagMergeMode	mode);