From 26f3ae828b38f70dd6ac4abaf1be697fa861eab6 Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Mon, 9 Feb 2009 23:37:31 +0000 Subject: move vp6_filter_diag4() to a new vp6dsp.c file and use it throught dsputil Originally committed as revision 17111 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/vp6dsp.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 libavcodec/vp6dsp.c (limited to 'libavcodec/vp6dsp.c') diff --git a/libavcodec/vp6dsp.c b/libavcodec/vp6dsp.c new file mode 100644 index 0000000000..f4b7670d78 --- /dev/null +++ b/libavcodec/vp6dsp.c @@ -0,0 +1,59 @@ +/** + * @file libavcodec/vp6dsp.c + * VP6 DSP-oriented functions + * + * Copyright (C) 2006 Aurelien Jacobs + * + * 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 + */ + +#include "libavutil/common.h" +#include "dsputil.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; + } +} -- cgit v1.2.3