From 4189fe11ffcbdcd311eb9a3437586a94492c4cde Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <u@pkh.me>
Date: Sun, 20 Oct 2013 21:23:43 +0200
Subject: avformat/vobsub: fix invalid sub queue access while seeking.

If there is only 1 stream and seek isn't called with a specific stream
index, we pick the first (and only) one.

Regression since dbfe6110.

Fixes CID1108591.
---
 libavformat/mpeg.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libavformat')

diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c
index 64c5a4ff2a..1ea58d5ed5 100644
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@@ -916,6 +916,8 @@ static int vobsub_read_seek(AVFormatContext *s, int stream_index,
         return ret;
     }
 
+    if (stream_index == -1) // only 1 stream
+        stream_index = 0;
     return ff_subtitles_queue_seek(&vobsub->q[stream_index], s, stream_index,
                                    min_ts, ts, max_ts, flags);
 }
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