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/*
* Copyright (C) 2012 Michael Niedermayer <[email protected]>
*
* 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/attributes.h>
#include <libavutil/common.h>
#include "vf_idetdsp.h"
int ff_idet_filter_line_c(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w)
{
int x;
int ret=0;
for(x=0; x<w; x++){
int v = (*a++ + *c++) - 2 * *b++;
ret += FFABS(v);
}
return ret;
}
int ff_idet_filter_line_c_16bit(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w)
{
int x;
int ret=0;
const uint16_t *a16 = (const uint16_t *) a;
const uint16_t *b16 = (const uint16_t *) b;
const uint16_t *c16 = (const uint16_t *) c;
for(x=0; x<w; x++){
int v = (*a16++ + *c16++) - 2 * *b16++;
ret += FFABS(v);
}
return ret;
}
void av_cold ff_idet_dsp_init(IDETDSPContext *dsp, int depth)
{
dsp->filter_line = depth > 8 ? ff_idet_filter_line_c_16bit : ff_idet_filter_line_c;
#if ARCH_X86
ff_idet_dsp_init_x86(dsp, depth);
#endif
}
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