From eac2495095dc2e61f8b7539e2f9e3f5de1f01120 Mon Sep 17 00:00:00 2001
From: Vitor Sessak <vitor1001@gmail.com>
Date: Sun, 10 Feb 2008 18:04:32 +0000
Subject: Need to be careful when dealing with references.

Commited in SoC by Bobby Bingham

Originally committed as revision 11894 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavfilter/formats.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'libavfilter/formats.c')

diff --git a/libavfilter/formats.c b/libavfilter/formats.c
index 021e18abe7..3748030c0e 100644
--- a/libavfilter/formats.c
+++ b/libavfilter/formats.c
@@ -134,3 +134,15 @@ void avfilter_formats_unref(AVFilterFormats **ref)
     *ref = NULL;
 }
 
+void avfilter_formats_changeref(AVFilterFormats **oldref,
+                                AVFilterFormats **newref)
+{
+    int idx;
+
+    if((idx = find_ref_index(oldref)) >= 0) {
+        (*oldref)->refs[idx] = newref;
+        *newref = *oldref;
+        *oldref = NULL;
+    }
+}
+
-- 
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