From 3f6d6af66e876ebfa263513a7b5834e1f90b785b Mon Sep 17 00:00:00 2001
From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Fri, 30 Jun 2006 03:19:31 +0000
Subject: [PATCH] Slightly reworked MC code, it gives better picture.
Originally committed as revision 5554 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/vc1.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index 6d39dc09855..3e61d6e8919 100644
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -923,8 +923,8 @@ static void vc1_mc_1mv(VC1Context *v)
srcV = s->last_picture.data[2];
if(v->fastuvmc) { // XXX: 8.3.5.4.5 specifies something different
- uvmx = (uvmx + 1) >> 1;
- uvmy = (uvmy + 1) >> 1;
+ uvmx = (uvmx + 1) & ~1;
+ uvmy = (uvmy + 1) & ~1;
}
src_x = s->mb_x * 16 + (mx >> 2);
@@ -959,8 +959,6 @@ static void vc1_mc_1mv(VC1Context *v)
if(!s->quarter_sample) { // hpel mc
mx >>= 1;
my >>= 1;
- uvmx >>= 1;
- uvmy >>= 1;
dxy = ((my & 1) << 1) | (mx & 1);
uvdxy = 0;
@@ -971,8 +969,10 @@ static void vc1_mc_1mv(VC1Context *v)
dsp->put_no_rnd_qpel_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize);
}
- dsp->put_mspel_pixels_tab[uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->put_mspel_pixels_tab[uvdxy](s->dest[2], srcV, s->uvlinesize);
+ dsp->put_no_rnd_pixels_tab[1][uvdxy](s->dest[1], srcU, s->uvlinesize, 8);
+ dsp->put_no_rnd_pixels_tab[1][uvdxy](s->dest[2], srcV, s->uvlinesize, 8);
+// dsp->put_mspel_pixels_tab[uvdxy](s->dest[1], srcU, s->uvlinesize);
+// dsp->put_mspel_pixels_tab[uvdxy](s->dest[2], srcV, s->uvlinesize);
}
/**
--
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