From b46b233baffc2076a1a17a264ba9553ae0d4878f Mon Sep 17 00:00:00 2001
From: Vittorio Giovara <vittorio.giovara@gmail.com>
Date: Fri, 24 Oct 2014 13:15:39 +0100
Subject: [PATCH] filmstripdec: avoid integer overflow
CC: libav-stable@libav.org
Bug-Id: CID 732246
---
libavformat/filmstripdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/filmstripdec.c b/libavformat/filmstripdec.c
index 3fa68424b7e..e4dee115ced 100644
--- a/libavformat/filmstripdec.c
+++ b/libavformat/filmstripdec.c
@@ -84,7 +84,7 @@ static int read_packet(AVFormatContext *s,
return AVERROR(EIO);
pkt->dts = avio_tell(s->pb) / (st->codec->width * (st->codec->height + film->leading) * 4);
pkt->size = av_get_packet(s->pb, pkt, st->codec->width * st->codec->height * 4);
- avio_skip(s->pb, st->codec->width * film->leading * 4);
+ avio_skip(s->pb, st->codec->width * (int64_t) film->leading * 4);
if (pkt->size < 0)
return pkt->size;
pkt->flags |= AV_PKT_FLAG_KEY;
--
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