From 423089e964410adbf13af3de42e3c9dd5a1babd6 Mon Sep 17 00:00:00 2001
From: Hendrik Leppkes <h.leppkes@gmail.com>
Date: Sat, 13 Apr 2013 15:45:57 +0200
Subject: [PATCH] lavf/mxfdec: validate month/day before date formatting

Some implementations of strftime do not like invalid values for
month/day, so ensure it doesn't happen.

Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavformat/mxfdec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 4ceaaee844..33e1eb4b85 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -1668,6 +1668,10 @@ static int mxf_timestamp_to_str(uint64_t timestamp, char **str)
     time.tm_min  = (timestamp >> 16 & 0xFF);
     time.tm_sec  = (timestamp >> 8  & 0xFF);
 
+    /* ensure month/day are valid */
+    time.tm_mon  = FFMAX(time.tm_mon, 0);
+    time.tm_mday = FFMAX(time.tm_mday, 1);
+
     *str = av_mallocz(32);
     if (!*str)
         return AVERROR(ENOMEM);