mirror of
https://github.com/game-stop/veejay.git
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106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2004 Niels Elburg <elburg@hio.hen.nl>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License , or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
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*/
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#include <config.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <libvjmem/vjmem.h>
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#include "enhancemask.h"
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#include "common.h"
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vj_effect *enhancemask_init(int width, int height)
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{
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vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
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ve->num_params = 1;
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ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params);
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ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params);
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ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params);
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ve->defaults[0] = 125; /* type */
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// ve->defaults[1] = 255; /* yuvdenoise's default sharpen parameter */
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ve->limits[0][0] = 0;
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ve->limits[1][0] = 2048;
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// ve->limits[0][1] = 0;
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// ve->limits[1][1] = 255;
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ve->description = "Sharpen";
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ve->extra_frame = 0;
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ve->sub_format = -1;
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ve->has_user = 0;
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ve->parallel = 1;
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ve->param_description = vje_build_param_list( ve->num_params, "Value" );
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return ve;
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}
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void enhancemask_apply(VJFrame *frame, int width, int height, int *s ) {
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//int s[9]= { 1, 0, -1, 2, 0, -2, 1 , 0 , -1};
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unsigned int r;
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const unsigned int len = (width*height)-width-1;
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uint8_t *Y = frame->data[0];
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/*
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int sum=0;
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for(r=0; r < 9; r++) sum+=s[r];
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for(r=width; r < len; r+=width) {
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for(c=1; c < width-1; c++) {
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int p1 = (
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(Y[r - width + c - 1] * s[0]) +
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(Y[r - width + c ] * s[1]) +
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(Y[r - width + c + 1] * s[2]) +
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(Y[r + c - 1] * s[3]) +
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(Y[r + c] * s[4]) +
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(Y[r + c + 1] * s[5]) +
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(Y[r + width + c - 1] * s[6]) +
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(Y[r + width + c ] * s[7]) +
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(Y[r + width + c + 1] * s[8]) );
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Y[r+c] = (p1/sum);
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}
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}
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*/
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/* The sharpen comes from yuvdenoiser, we like grainy video so 512 is allowed. */
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register int d,m;
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// unsigned int op0,op1;
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// op0 = (s[1] > 255) ? 255 : s[1];
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// op1 = 255 - op1;
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for(r=0; r < len; r++) {
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m = ( Y[r] + Y[r+1] + Y[r+width] + Y[r+width+1] + 2) >> 2;
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d = Y[r] - m;
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d *= s[0];
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d /= 100;
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m = m + d;
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// a = Y[r];
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// Y[r] = (m * op0 + a * op1) / 255;
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Y[r] = m;
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}
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for(r=len; r < (width*height); r++) {
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m = (Y[r] + Y[r+1] + Y[r-width] + Y[r-width+1] + 2) >> 2;
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d = Y[r]-m;
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d *= s[0];
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d /= 100;
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m = m + d;
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Y[r] = m;
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}
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}
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void enhancemask_free(){}
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