From 8dd25c52cbf57d4a28885abcc950c27a24606036 Mon Sep 17 00:00:00 2001
From: Martin Storsjö <martin@martin.st>
Date: Sat, 24 Jul 2010 08:43:52 +0000
Subject: mpegts: Warn if unable to seek back

Originally committed as revision 24477 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/mpegts.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index b1600901e2..27d13bcd9e 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1387,7 +1387,8 @@ static int mpegts_read_header(AVFormatContext *s,
         /* normal demux */
 
         /* first do a scaning to get all the services */
-        url_fseek(pb, pos, SEEK_SET);
+        if (url_fseek(pb, pos, SEEK_SET) < 0)
+            av_log(s, AV_LOG_ERROR, "Unable to seek back to the start\n");
 
         mpegts_open_section_filter(ts, SDT_PID, sdt_cb, ts, 1);
 
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