mirror of
https://github.com/game-stop/veejay.git
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146 lines
3.8 KiB
C
146 lines
3.8 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2002 Niels Elburg <elburg@hio.hen.nl>
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*
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* vvCutStop - ported from vvFFPP_basic
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* Copyright(C)2005 Maciek Szczesniak <maciek@visualvinyl.net>
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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 <stdlib.h>
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#include "common.h"
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#include "split.h"
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#include <stdlib.h>
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#include <stdio.h>
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static uint8_t *vvcutstop_buffer[3];
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static unsigned int frq_cnt;
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vj_effect *cutstop_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 = 4;
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ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
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ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
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ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
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ve->defaults[0] = 40; // treshold
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ve->defaults[1] = 50; // hold frame freq
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ve->defaults[2] = 0; // cut mode
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ve->defaults[3] = 0; // hold front/back
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ve->limits[0][0] = 0;
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ve->limits[1][0] = 255;
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ve->limits[0][1] = 0;
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ve->limits[1][1] = 255;
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ve->limits[0][2] = 0;
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ve->limits[1][2] = 1;
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ve->limits[0][3] = 0;
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ve->limits[1][3] = 1;
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ve->description = "vvCutStop";
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ve->sub_format = 1;
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ve->extra_frame = 0;
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ve->has_user = 0;
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ve->param_description = vje_build_param_list( ve->num_params, "Threshold", "Frame freq", "Cut mode", "Hold front/back" );
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frq_cnt = 256;
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return ve;
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}
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int cutstop_malloc(int width, int height)
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{
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int i;
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for( i = 0; i < 3 ;i ++ ) {
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vvcutstop_buffer[i] = (uint8_t*)vj_malloc(sizeof(uint8_t) * RUP8( width * height ));
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if(!vvcutstop_buffer[i] )
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return 0;
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}
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veejay_memset( vvcutstop_buffer[0],0, width*height);
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veejay_memset( vvcutstop_buffer[1],128,(width*height));
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veejay_memset( vvcutstop_buffer[2],128,(width*height));
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return 1;
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}
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void cutstop_free() {
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int i;
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for( i = 0; i < 3; i ++ ) {
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if(vvcutstop_buffer[i])
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free(vvcutstop_buffer[i]);
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vvcutstop_buffer[i] = NULL;
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}
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}
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void cutstop_apply( VJFrame *frame, int width, int height, int threshold, int freq, int cutmode, int holdmode) {
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int i=0;
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const unsigned int len = frame->len;
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uint8_t *Yb = vvcutstop_buffer[0];
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uint8_t *Ub = vvcutstop_buffer[1];
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uint8_t *Vb = vvcutstop_buffer[2];
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uint8_t *Yd = frame->data[0];
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uint8_t *Ud = frame->data[1];
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uint8_t *Vd = frame->data[2];
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frq_cnt = frq_cnt + freq;
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if (freq == 255 || frq_cnt > 255) {
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veejay_memcpy(Yb, Yd, len);
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veejay_memcpy(Ub, Ud, len);
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veejay_memcpy(Vb, Vd, len);
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frq_cnt = 0;
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}
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// moved cutmode & holdmode outside loop
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if(cutmode && !holdmode)
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{
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for( i = 0; i < len; i ++ )
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if( threshold > Yb[i] )
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{
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Yd[i] = Yb[i]; Ud[i] = Ub[i]; Vd[i] = Vb[i];
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}
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}
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if(cutmode && holdmode)
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{
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for( i = 0; i < len; i ++ )
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if( threshold > Yd[i] )
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{
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Yd[i] = Yb[i]; Ud[i] = Ub[i]; Vd[i] = Vb[i];
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}
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}
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if(!cutmode && holdmode)
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{
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for( i =0 ; i < len; i ++ )
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if( threshold < Yd[i])
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{
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Yd[i] = Yb[i]; Ud[i] = Ub[i]; Vd[i] = Vb[i];
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}
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}
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if(!cutmode && !holdmode)
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{
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for( i = 0; i < len; i ++ )
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if(threshold < Yb[i])
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{
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Yd[i] = Yb[i]; Ud[i] = Ub[i]; Vd[i] = Vb[i];
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}
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}
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}
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