From 53928e0b49b9924a41905d20a26b965ecdd9abf5 Mon Sep 17 00:00:00 2001
From: Steven Liu <lq@chinaffmpeg.org>
Date: Thu, 10 Oct 2019 13:47:04 +0800
Subject: [PATCH] avformat/mtv: check av_strdup() return value

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
---
 libavformat/mtv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/mtv.c b/libavformat/mtv.c
index 728f4a4781..e731d91077 100644
--- a/libavformat/mtv.c
+++ b/libavformat/mtv.c
@@ -171,6 +171,8 @@ static int mtv_read_header(AVFormatContext *s)
     st->codecpar->width           = mtv->img_width;
     st->codecpar->height          = mtv->img_height;
     st->codecpar->extradata       = av_strdup("BottomUp");
+    if (!st->codecpar->extradata)
+        return AVERROR(ENOMEM);
     st->codecpar->extradata_size  = 9;
 
     // audio - mp3