From 31aa5b1a783ec91063eec370026a29c546d4ca6e Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefasab@gmail.com>
Date: Fri, 21 Sep 2012 12:33:27 +0200
Subject: [PATCH] lavfi/hue: fix crash when resetting the saturation expression

Previously when saturation was reinited, the old value was freed when
setting options, and freed again in PARSE_EXPRESSION().
---
 libavfilter/vf_hue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavfilter/vf_hue.c b/libavfilter/vf_hue.c
index 9674a20f67..cfd71b1f89 100644
--- a/libavfilter/vf_hue.c
+++ b/libavfilter/vf_hue.c
@@ -144,6 +144,7 @@ static inline int set_options(AVFilterContext *ctx, const char *args)
 
             hue->hue_expr     = NULL;
             hue->hue_deg_expr = NULL;
+            hue->saturation_expr = NULL;
 
             if ((ret = av_set_options_string(hue, args, "=", ":")) < 0)
                 return ret;