From 6cbd47bf90d38aadba0f0cea4493c23ece77ac8f Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 17 Sep 2016 23:18:27 +0200
Subject: [PATCH] avcodec/dvdsubdec: ignore h <= 1 case, to properly decode
 subtitle

Fixes #5825. If h == 1, second decode_rle() fails.

Regression since: 3f0a3e9e127d067c5cf65640a44765c1ddd01622.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
---
 libavcodec/dvdsubdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dvdsubdec.c b/libavcodec/dvdsubdec.c
index 19f25f0e60..b81b481e43 100644
--- a/libavcodec/dvdsubdec.c
+++ b/libavcodec/dvdsubdec.c
@@ -368,7 +368,7 @@ static int decode_dvd_subtitles(DVDSubContext *ctx, AVSubtitle *sub_header,
             h = y2 - y1 + 1;
             if (h < 0)
                 h = 0;
-            if (w > 0 && h > 0) {
+            if (w > 0 && h > 1) {
                 reset_rects(sub_header);
 
                 sub_header->rects = av_mallocz(sizeof(*sub_header->rects));