From c9ac08277daf6a1895b5a93a27874a605f15309e Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Sat, 18 Feb 2012 04:07:53 +0100
Subject: [PATCH] movenc: Dont crash on aspect=0/0.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
 libavformat/movenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index d1337a07056..72a66db84f7 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -1582,7 +1582,7 @@ static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
         mov_write_udta_sdp(pb, track->rtp_ctx, track->track_id);
     if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
         double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
-        if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
+        if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
             mov_write_tapt_tag(pb, track);
     };
     return update_size(pb, pos);
-- 
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