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Initial checkin of veejay 1.4

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git-svn-id: svn://code.dyne.org/veejay/trunk@1172 eb8d1916-c9e9-0310-b8de-cf0c9472ead5
This commit is contained in:
Niels Elburg
2008-11-10 20:16:24 +00:00
parent d81258c54c
commit d8e6f98d53
793 changed files with 244409 additions and 0 deletions
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90
veejay-current/veejay-server/libvje/effects/diffimg.c Normal file
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/*
* Linux VeeJay
*
* Copyright(C)2002 Niels Elburg <elburg@hio.hen.nl>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License , or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
*/
#include <stdlib.h>
#include <stdint.h>
#include <libvjmem/vjmem.h>
#include "diffimg.h"
#include "common.h"
vj_effect *diffimg_init(int width, int height)
{
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
ve->num_params = 3;
ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params);
ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params);
ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params);
ve->defaults[0] = 6;/* type */
ve->defaults[1] = 15; /* min */
ve->defaults[2] = 235; /* max */
ve->limits[0][0] = 0;
ve->limits[1][0] = 7;
/* 0,179,0253,0127 */
ve->limits[0][1] = 1;
ve->limits[1][1] = 255;
ve->limits[1][2] = 255;
ve->limits[0][2] = 1;
ve->param_description = vje_build_param_list( ve->num_params,"Mode", "Min threshold", "Max threshold" );
ve->description = "Enhanced Magic Blend";
ve->extra_frame = 0;
ve->sub_format = 0;
ve->has_user = 0;
return ve;
}
void diffimg_apply(
VJFrame *frame,
int width,
int height,
int type,
int threshold_min,
int threshold_max
)
{
unsigned int i;
const int len = frame->len - width - 2;
int d,m;
uint8_t y,yb;
uint8_t *Y = frame->data[0];
_pf _pff = _get_pf(type);
for(i=0; i < len; i++)
{
y = Y[i];
if( y < 16 ) y = 16; else if (y > 235) y = 235;
yb = y;
if(y >= threshold_min && y <= threshold_max)
{
m = (Y[i+1] + Y[i+width] + Y[i+width+1]+2) >> 2;
d = Y[i] - m;
d *= 500;
d /= 100;
m = m + d;
y = ((((y << 1) - (255 - m))>>1) + Y[i])>>1;
if(y < 16) y = 16; else if (y>235) y = 235;
Y[i] = _pff(y,yb);
}
}
}
void diffimg_free(){}