mirror of
https://github.com/game-stop/veejay.git
synced 2025-12-17 05:10:00 +01:00
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
|
|
* Linux VeeJay
|
|
*
|
|
* Copyright(C)2004 Niels Elburg <nwelburg@gmail.com>
|
|
*
|
|
* 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 "common.h"
|
|
#include <veejaycore/vjmem.h>
|
|
#include "blackreplace.h"
|
|
|
|
vj_effect *blackreplace_init(int w, int h)
|
|
{
|
|
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
|
|
ve->num_params = 4;
|
|
|
|
ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
|
|
ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
|
|
ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
|
|
ve->limits[0][0] = 0;
|
|
ve->limits[1][0] = 255;
|
|
ve->limits[0][1] = 0;
|
|
ve->limits[1][1] = 255;
|
|
ve->limits[0][2] = 0;
|
|
ve->limits[1][2] = 255;
|
|
ve->limits[0][3] = 0;
|
|
ve->limits[1][3] = 255;
|
|
ve->defaults[0] = 255;
|
|
ve->defaults[1] = 150;
|
|
ve->defaults[2] = 120;
|
|
ve->defaults[3] = 250;
|
|
ve->description = "Replace Black for a Color";
|
|
ve->sub_format = 1;
|
|
ve->extra_frame = 0;
|
|
ve->parallel = 1;
|
|
ve->has_user = 0;
|
|
ve->param_description = vje_build_param_list( ve->num_params, "Threshold", "Red", "Green", "Blue" );
|
|
return ve;
|
|
}
|
|
|
|
|
|
void blackreplace_apply( void *ptr, VJFrame *frame, int *args ) {
|
|
int threshold = args[0];
|
|
int red = args[1];
|
|
int green = args[2];
|
|
int blue = args[3];
|
|
|
|
int i;
|
|
const int len = frame->len;
|
|
const int uv_len = (frame->ssm ? len : frame->uv_len );
|
|
|
|
int colorCb=128, colorCr=128, colorY=0;
|
|
|
|
uint8_t *Y = frame->data[0];
|
|
uint8_t *Cb = frame->data[1];
|
|
uint8_t *Cr = frame->data[2];
|
|
|
|
_rgb2yuv(red,green,blue,colorY,colorCb,colorCr);
|
|
|
|
|
|
for( i = 0; i < len; i ++ ) {
|
|
if( Y[i] < threshold && Cb[i] == 128 && Cr[i] == 128 ) {
|
|
Y[i] = colorY;
|
|
Cb[i] = colorCb;
|
|
Cr[i] = colorCr;
|
|
}
|
|
}
|
|
}
|