From: Vittorio Giovara <vittorio.giovara@gmail.com>
Date: Sat, 18 Oct 2014 15:10:35 +0000 (+0100)
Subject: vf_format: check input validity
X-Git-Tag: v11.4~99
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d1ad85fc020653be5ad25ed1d3d5091e89fee782;p=platform%2Fupstream%2Flibav.git

vf_format: check input validity

CC: libav-stable@libav.org
---

diff --git a/libavfilter/vf_format.c b/libavfilter/vf_format.c
index d37f870..914089d 100644
--- a/libavfilter/vf_format.c
+++ b/libavfilter/vf_format.c
@@ -59,6 +59,11 @@ static av_cold int init(AVFilterContext *ctx)
     int nb_formats = 1;
     int i;
 
+    if (!s->pix_fmts) {
+        av_log(ctx, AV_LOG_ERROR, "Empty output format string.\n");
+        return AVERROR(EINVAL);
+    }
+
     /* count the formats */
     cur = s->pix_fmts;
     while ((cur = strchr(cur, '|'))) {