From 2b48d8ba4affe1541b2d85fc0177abea5dbcaac1 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 5 Sep 2007 01:49:14 +0000
Subject: [PATCH] add a 8 taps filter for testing
Originally committed as revision 10394 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/snow.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavcodec/snow.c b/libavcodec/snow.c
index cbedbaeb94e..275c5bfab3c 100644
--- a/libavcodec/snow.c
+++ b/libavcodec/snow.c
@@ -2159,7 +2159,11 @@ START_TIMER
int a6= src[x + HTAPS/2+3];
int a7= src[x + HTAPS/2+4];
// int am= 9*(a1+a2) - (a0+a3);
+#if HTAPS==6
int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);
+#else
+ int am= 21*(a2+a3) - 7*(a1+a4) + 3*(a0+a5) - (a_1+a6);
+#endif
// int am= 18*(a2+a3) - 2*(a1+a4);
// int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3;
// int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;
@@ -2196,7 +2200,11 @@ START_TIMER
int a5= tmp[x + (HTAPS/2+2)*stride];
int a6= tmp[x + (HTAPS/2+3)*stride];
int a7= tmp[x + (HTAPS/2+4)*stride];
+#if HTAPS==6
int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);
+#else
+ int am= 21*(a2+a3) - 7*(a1+a4) + 3*(a0+a5) - (a_1+a6);
+#endif
// int am= 18*(a2+a3) - 2*(a1+a4);
/* int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3;
int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;*/
--
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