[libav-commits] dsputil: use vertical component for drawing bottom edge.

Ronald S. Bultje git at libav.org
Wed Jan 25 11:06:49 CET 2012


Module: libav
Branch: master
Commit: c3af52fa8bbd6f1c5c0c70af89b02ff5b394f21d

Author:    Ronald S. Bultje <rsbultje at gmail.com>
Committer: Ronald S. Bultje <rsbultje at gmail.com>
Date:      Wed Jan 25 17:17:52 2012 +0800

dsputil: use vertical component for drawing bottom edge.

Current code only writes 8 pixels of vertical edge for YUV422, which
causes MC artifacts when subsequent frames use data from that edge.

---

 libavcodec/x86/dsputil_mmx.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/x86/dsputil_mmx.c b/libavcodec/x86/dsputil_mmx.c
index e34b95b..7964014 100644
--- a/libavcodec/x86/dsputil_mmx.c
+++ b/libavcodec/x86/dsputil_mmx.c
@@ -860,7 +860,7 @@ static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w,
     }
 
     if (sides&EDGE_BOTTOM) {
-        for(i = 0; i < w; i += 4) {
+        for(i = 0; i < h; i += 4) {
             ptr= last_line + (i + 1) * wrap - w;
             __asm__ volatile(
                     "1:                             \n\t"



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