From 87f68060691cb48a82faa993eeebe63621ef621c Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Sun, 29 Nov 2009 03:32:30 +0000
Subject: [PATCH] Override a few values read so as to ensure that things are
 not inconsistent.

Originally committed as revision 20654 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/mpeg12.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index 7e2d1ba..d7e5f41 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -1545,6 +1545,13 @@ static void mpeg_decode_picture_coding_extension(Mpeg1Context *s1)
     s->chroma_420_type = get_bits1(&s->gb);
     s->progressive_frame = get_bits1(&s->gb);
 
+    if(s->progressive_sequence)
+        s->progressive_frame= 1;
+    if(s->progressive_frame){
+        s->picture_structure= PICT_FRAME;
+        s->frame_pred_frame_dct= 1;
+    }
+
     if(s->picture_structure == PICT_FRAME){
         s->first_field=0;
         s->v_edge_pos= 16*s->mb_height;
-- 
2.7.4