0,0 → 1,61 |
/* |
* Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org> |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg is free software; you can redistribute it and/or |
* modify it under the terms of the GNU Lesser General Public |
* License as published by the Free Software Foundation; either |
* version 2.1 of the License, or (at your option) any later version. |
* |
* 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 |
* Lesser General Public License for more details. |
* |
* You should have received a copy of the GNU Lesser General Public |
* License along with FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
/** |
* @file |
* VP6 DSP-oriented functions |
*/ |
|
#include "libavutil/common.h" |
#include "vp56dsp.h" |
|
|
void ff_vp6_filter_diag4_c(uint8_t *dst, uint8_t *src, int stride, |
const int16_t *h_weights, const int16_t *v_weights) |
{ |
int x, y; |
int tmp[8*11]; |
int *t = tmp; |
|
src -= stride; |
|
for (y=0; y<11; y++) { |
for (x=0; x<8; x++) { |
t[x] = av_clip_uint8(( src[x-1] * h_weights[0] |
+ src[x ] * h_weights[1] |
+ src[x+1] * h_weights[2] |
+ src[x+2] * h_weights[3] + 64) >> 7); |
} |
src += stride; |
t += 8; |
} |
|
t = tmp + 8; |
for (y=0; y<8; y++) { |
for (x=0; x<8; x++) { |
dst[x] = av_clip_uint8(( t[x-8 ] * v_weights[0] |
+ t[x ] * v_weights[1] |
+ t[x+8 ] * v_weights[2] |
+ t[x+16] * v_weights[3] + 64) >> 7); |
} |
dst += stride; |
t += 8; |
} |
} |