From b010d9b58651379883b42e58494aaefbab4df648 Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefasab@gmail.com>
Date: Sun, 8 Jul 2012 13:43:47 +0200
Subject: [PATCH] lavf/nutenc: provide meaningful error message and error code
 in case of invalid pts

---
 libavformat/nutenc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavformat/nutenc.c b/libavformat/nutenc.c
index bd10b2965b..fd7768a628 100644
--- a/libavformat/nutenc.c
+++ b/libavformat/nutenc.c
@@ -704,8 +704,10 @@ static int nut_write_packet(AVFormatContext *s, AVPacket *pkt){
     int store_sp=0;
     int ret;
 
-    if(pkt->pts < 0)
-        return -1;
+    if (pkt->pts < 0) {
+        av_log(s, AV_LOG_ERROR, "Invalid negative packet pts %"PRId64" in input\n", pkt->pts);
+        return AVERROR(EINVAL);
+    }
 
     if(1LL<<(20+3*nut->header_count) <= avio_tell(bc))
         write_headers(s, bc);