From f2b6aabd3da7d0d15c7cea0a9fb649b530e2d3cb Mon Sep 17 00:00:00 2001
From: =?utf8?q?Cl=C3=A9ment=20B=C5=93sch?= <ubitux@gmail.com>
Date: Sun, 27 Jan 2013 20:25:21 +0900
Subject: [PATCH] lavf/srtdec: do not try to queue empty subtitle chunks.

Regression since 3af3a30.
Fixes Ticket2167.
---
 libavformat/srtdec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/srtdec.c b/libavformat/srtdec.c
index 809d1d064a..76e06e4165 100644
--- a/libavformat/srtdec.c
+++ b/libavformat/srtdec.c
@@ -100,6 +100,8 @@ static int srt_read_header(AVFormatContext *s)
             pts = get_pts(&ptr, &duration, &x1, &y1, &x2, &y2);
             if (pts != AV_NOPTS_VALUE) {
                 int len = buf.len - (ptr - buf.str);
+                if (len <= 0)
+                    continue;
                 sub = ff_subtitles_queue_insert(&srt->q, ptr, len, 0);
                 if (!sub) {
                     res = AVERROR(ENOMEM);
-- 
2.11.0