From 1df401505c6d209961016ba881d18bedf6af61eb Mon Sep 17 00:00:00 2001
From: Rodger Combs <rodger.combs@gmail.com>
Date: Mon, 6 Jun 2016 13:26:36 -0500
Subject: lavf/srtdec: fix probing files with negative first timestamps

---
 libavformat/srtdec.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'libavformat/srtdec.c')

diff --git a/libavformat/srtdec.c b/libavformat/srtdec.c
index 585aa6a4c3..9ab7a4ef36 100644
--- a/libavformat/srtdec.c
+++ b/libavformat/srtdec.c
@@ -52,7 +52,10 @@ static int srt_probe(AVProbeData *p)
     /* Check if the next line matches a SRT timestamp */
     if (ff_subtitles_read_line(&tr, buf, sizeof(buf)) < 0)
         return 0;
-    if (buf[0] >= '0' && buf[0] <= '9' && strstr(buf, " --> ")
+    pbuf = buf;
+    if (buf[0] == '-')
+      pbuf++;
+    if (pbuf[0] >= '0' && pbuf[0] <= '9' && strstr(buf, " --> ")
         && sscanf(buf, "%*d:%*d:%*d%*1[,.]%*d --> %*d:%*d:%*d%*1[,.]%d", &v) == 1)
         return AVPROBE_SCORE_MAX;
 
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