From 3fe00cac71ed8d375c8e938c726f154d1b961c0e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Fri, 10 Feb 2012 20:09:05 +0100
Subject: [PATCH] Fix bitexact intra mismatch control.
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The DC coefficient should be included, too.
This probably was missed because DC quantizer is always
even for MPEG-1/2 but this function is also used for MPEG-4.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
---
 libavcodec/mpegvideo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 5e9189c8b8..a3f1e62160 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -2736,6 +2736,7 @@ static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
     else nCoeffs= s->block_last_index[n];
 
     block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
+    sum += block[0];
     quant_matrix = s->intra_matrix;
     for(i=1;i<=nCoeffs;i++) {
         int j= s->intra_scantable.permutated[i];