From 035a3792c223d3b2bba79f38049bd6363b2d470d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <ubitux@gmail.com>
Date: Thu, 25 Apr 2013 00:56:36 +0200
Subject: [PATCH] lavfi/subtitles: zero-init AVSubtitle.

This avoids invalid free when the stream id doesn't match the packet
stream index.

Ticket #2501
---
 libavfilter/vf_subtitles.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_subtitles.c b/libavfilter/vf_subtitles.c
index 10f07a48a5..b5f5bc9d19 100644
--- a/libavfilter/vf_subtitles.c
+++ b/libavfilter/vf_subtitles.c
@@ -323,7 +323,7 @@ static av_cold int init_subtitles(AVFilterContext *ctx)
     pkt.size = 0;
     while (av_read_frame(fmt, &pkt) >= 0) {
         int i, got_subtitle;
-        AVSubtitle sub;
+        AVSubtitle sub = {0};
 
         if (pkt.stream_index == sid) {
             ret = avcodec_decode_subtitle2(dec_ctx, &sub, &got_subtitle, &pkt);