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https://github.com/game-stop/veejay.git
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75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002 Niels Elburg <nwelburg@gmail.com>
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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 <stdint.h>
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#include <stdio.h>
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#include <libvjmem/vjmem.h>
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#include "whiteframe.h"
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vj_effect *whiteframe_init(int w,int h)
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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 = 0;
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ve->defaults = NULL; /* default values */
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ve->limits[0] = NULL; /* min */
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ve->limits[1] = NULL; /* max */
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ve->description = "Replace Pure White (MG)";
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ve->extra_frame = 1;
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ve->sub_format = 0;
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ve->has_user = 0;
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ve->parallel = 1;
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ve->param_description = NULL;
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return ve;
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}
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/* this method was created for magic motion */
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void whiteframe_apply( VJFrame *frame, VJFrame *frame2, int width,
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int height)
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{
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unsigned int i;
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const int len = frame->len;
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const int uv_len = frame->uv_len;
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uint8_t p;
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uint8_t *Y = frame->data[0];
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uint8_t *Cb= frame->data[1];
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uint8_t *Cr= frame->data[2];
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uint8_t *Y2 = frame2->data[0];
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uint8_t *Cb2= frame2->data[1];
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uint8_t *Cr2= frame2->data[2];
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/* look for white pixels in luminance channel and swap with yuv2 */
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for (i = 0; i < len; i++)
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{
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p = Y[i];
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if (p >= 235)
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{
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Y[i] = Y2[i];
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}
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}
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for (i = 0; i < uv_len; i++)
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{
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p = Cb[i];
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if (p == 128)
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{
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Cb[i] = Cb2[i];
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Cr[i] = Cr2[i];
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}
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}
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}
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