From: Eunhae Choi <eunhae1.choi@samsung.com>
Date: Fri, 15 Feb 2019 09:28:09 +0000 (+0900)
Subject: util: add GST_GROUP_ID_INVALID
X-Git-Tag: accepted/tizen/unified/20190218.163156^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7fa56e6afb37dba02bf828b388c947aa73050d91;p=platform%2Fupstream%2Fgstreamer.git

util: add GST_GROUP_ID_INVALID

- get upstream patch to apply latest playback code

commit: e5c15f6b9605a1e682a60ea1bfadae831e651a41

Various plugins use special values (0 or G_MAXUINT32) as an
invalid/unset group_id, but nothing guarantees a groupid won't have
that value.
Instead define a value which group_id will never have and make
gst_group_id_next() always return a value different from that.

Change-Id: Ia77c491ff9a6389b769e3388efa826391211cb6b
---

diff --git a/gst/gstutils.h b/gst/gstutils.h
index 414388d..bf859b1 100644
--- a/gst/gstutils.h
+++ b/gst/gstutils.h
@@ -79,6 +79,18 @@ guint64         gst_util_uint64_scale_int_ceil  (guint64 val, gint num, gint den
 guint32         gst_util_seqnum_next            (void);
 gint32          gst_util_seqnum_compare         (guint32 s1, guint32 s2);
 
+/**
+ * GST_GROUP_ID_INVALID:
+ *
+ * A value which is guaranteed to never be returned by
+ * gst_util_group_id_next().
+ *
+ * Can be used as a default value in variables used to store group_id.
+ *
+ * Since: 1.14
+ */
+#define GST_GROUP_ID_INVALID (0)
+
 guint           gst_util_group_id_next          (void);
 
 /**