From 392f227393f479ab9a461aba68ae4c6b6da685a4 Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <cehoyos@rainbow.studorg.tuwien.ac.at>
Date: Wed, 21 May 2008 07:05:08 +0000
Subject: [PATCH] Do not loop endlessly if converting into dv with timestamps
 Jan 1st not immediately following a lapyear.

Patch by babupillai.
Fixes issue 443.

Originally committed as revision 13207 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/cutils.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/cutils.c b/libavformat/cutils.c
index 32887c4bc4..42ef5996d9 100644
--- a/libavformat/cutils.c
+++ b/libavformat/cutils.c
@@ -77,11 +77,12 @@ struct tm *brktimegm(time_t secs, struct tm *tm)
 
     /* oh well, may be someone some day will invent a formula for this stuff */
     y = 1970; /* start "guessing" */
-    while (days >= (ISLEAP(y)?366:365)) {
+    while (days > 365) {
         ny = (y + days/366);
         days -= (ny - y) * 365 + LEAPS_COUNT(ny - 1) - LEAPS_COUNT(y - 1);
         y = ny;
     }
+    if (days==365 && !ISLEAP(y)) { days=0; y++; }
     md[1] = ISLEAP(y)?29:28;
     for (m=0; days >= md[m]; m++)
          days -= md[m];