From 17d57848fc14e82f76a65ffb25c90f2f011dc4a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Wed, 11 Sep 2013 22:53:15 +0300
Subject: [PATCH] mpc8: Make sure the first stream exists before parsing the
seek table
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
---
libavformat/mpc8.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c
index 29001b19f64..3564e81c323 100644
--- a/libavformat/mpc8.c
+++ b/libavformat/mpc8.c
@@ -139,6 +139,11 @@ static void mpc8_parse_seektable(AVFormatContext *s, int64_t off)
int i, t, seekd;
GetBitContext gb;
+ if (s->nb_streams == 0) {
+ av_log(s, AV_LOG_ERROR, "No stream added before parsing seek table\n");
+ return;
+ }
+
avio_seek(s->pb, off, SEEK_SET);
mpc8_get_chunk_header(s->pb, &tag, &size);
if(tag != TAG_SEEKTABLE){
--
GitLab