From c3778df2d4c05e76d28d77a2d740e435393046c9 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 22 Oct 2012 13:58:19 +0200
Subject: [PATCH] ffmpeg: fix negative array index
Fixes CID733808
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
ffmpeg_filter.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/ffmpeg_filter.c b/ffmpeg_filter.c
index b634ac5d99a..6a5141098df 100644
--- a/ffmpeg_filter.c
+++ b/ffmpeg_filter.c
@@ -37,7 +37,8 @@ enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodec *codec, enum AVPixelFo
{
if (codec && codec->pix_fmts) {
const enum AVPixelFormat *p = codec->pix_fmts;
- int has_alpha= av_pix_fmt_desc_get(target)->nb_components % 2 == 0;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(target);
+ int has_alpha = desc ? desc->nb_components % 2 == 0 : 0;
enum AVPixelFormat best= AV_PIX_FMT_NONE;
if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
if (st->codec->codec_id == AV_CODEC_ID_MJPEG) {
--
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