From ce5d17f590719504e6318b757dc74ee0b2da4ce4 Mon Sep 17 00:00:00 2001
From: Reinhard Nissl <rnissl@gmx.de>
Date: Sat, 10 Nov 2007 06:10:46 +0000
Subject: Provide top_field_first logic for h264

patch by: Reinhard Nissl rnissl a gmx d de

Originally committed as revision 10989 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/h264.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libavcodec')

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 70de4cfe48..f4def1276e 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -7767,6 +7767,8 @@ static int decode_frame(AVCodecContext *avctx,
 
         } else {
             cur->interlaced_frame = FIELD_OR_MBAFF_PICTURE;
+            /* Derive top_field_first from field pocs. */
+            cur->top_field_first = cur->field_poc[0] < cur->field_poc[1];
 
         //FIXME do something with unavailable reference frames
 
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