1 files changed, 11 insertions, 13 deletions

diff --git a/libavfilter/vf_hqdn3d.c b/libavfilter/vf_hqdn3d.c
index 6161b5e6f4..4381586bec 100644
--- a/libavfilter/vf_hqdn3d.c
+++ b/libavfilter/vf_hqdn3d.c
@@ -3,20 +3,20 @@
  * Copyright (c) 2010 Baptiste Coudurier
  * Copyright (c) 2012 Loren Merritt
  *
- * This file is part of Libav, ported from MPlayer.
+ * This file is part of FFmpeg, ported from MPlayer.
  *
- * Libav is free software; you can redistribute it and/or modify
+ * FFmpeg is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along
- * with Libav; if not, write to the Free Software Foundation, Inc.,
+ * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
@@ -37,10 +37,9 @@
 #include "vf_hqdn3d.h"
 
 #define LUT_BITS (depth==16 ? 8 : 4)
-#define RIGHTSHIFT(a,b) (((a)+(((1<<(b))-1)>>1))>>(b))
-#define LOAD(x) ((depth==8 ? src[x] : AV_RN16A(src+(x)*2)) << (16-depth))
-#define STORE(x,val) (depth==8 ? dst[x] = RIGHTSHIFT(val, 16-depth)\
-                    : AV_WN16A(dst+(x)*2, RIGHTSHIFT(val, 16-depth)))
+#define LOAD(x) (((depth==8 ? src[x] : AV_RN16A(src+(x)*2)) << (16-depth)) + (((1<<(16-depth))-1)>>1))
+#define STORE(x,val) (depth==8 ? dst[x] = (val) >> (16-depth)\
+                    : AV_WN16A(dst+(x)*2, (val) >> (16-depth)))
 
 av_always_inline
 static uint32_t lowpass(int prev, int cur, int16_t *coef, int depth)
@@ -309,10 +308,11 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *in)
 {
     HQDN3DContext *hqdn3d = inlink->dst->priv;
     AVFilterLink *outlink = inlink->dst->outputs[0];
+
     AVFilterBufferRef *out;
-    int direct, c;
+    int direct = 0, c;
 
-    if ((in->perms & AV_PERM_WRITE) && !(in->perms & AV_PERM_PRESERVE)) {
+    if (in->perms & AV_PERM_WRITE) {
         direct = 1;
         out = in;
     } else {
@@ -321,10 +321,7 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *in)
             avfilter_unref_bufferp(&in);
             return AVERROR(ENOMEM);
         }
-
         avfilter_copy_buffer_ref_props(out, in);
-        out->video->w = outlink->w;
-        out->video->h = outlink->h;
     }
 
     for (c = 0; c < 3; c++) {
@@ -352,6 +349,7 @@ static const AVFilterPad avfilter_vf_hqdn3d_inputs[] = {
     { NULL }
 };
 
+
 static const AVFilterPad avfilter_vf_hqdn3d_outputs[] = {
     {
         .name = "default",