mirror of
https://github.com/game-stop/veejay.git
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98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2007 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 <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 "autoeq.h"
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#include <stdlib.h>
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#include "common.h"
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vj_effect *autoeq_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 = 3;
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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->limits[0][0] = 0;
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ve->limits[1][0] = 1;
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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] = 255;
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ve->defaults[0] = 0; // show histogram
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ve->defaults[1] = 200; // intensity
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ve->defaults[2] = 132; // strength
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ve->description = "Automatic Histogram Equalizer";
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ve->sub_format = 0;
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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, "Mode","Intensity","Strength");
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ve->hints = vje_init_value_hint_list( ve->num_params );
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vje_build_value_hint_list( ve->hints, ve->limits[1][0],0,
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"Show Histogram", "Equalize Frame" );
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return ve;
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}
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static void *histogram_ = NULL;
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int autoeq_malloc(int w, int h)
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{
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if( histogram_ )
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veejay_histogram_del(histogram_);
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histogram_ = veejay_histogram_new();
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return 1;
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}
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void autoeq_free()
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{
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if( histogram_ )
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veejay_histogram_del(histogram_);
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histogram_ = NULL;
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}
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void autoeq_apply( VJFrame *frame, int width, int height, int val, int intensity, int strength)
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{
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if( val == 0 )
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{
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VJFrame tmp;
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veejay_memcpy( &tmp, frame, sizeof(VJFrame));
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tmp.data[0] = (uint8_t*) vj_malloc( sizeof(uint8_t) * frame->len );
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vj_frame_copy1( frame->data[0], tmp.data[0], frame->len );
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veejay_histogram_draw( histogram_,&tmp, frame, intensity, strength );
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vj_frame_clear1( frame->data[1], 128, frame->uv_len );
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vj_frame_clear1( frame->data[2], 128, frame->uv_len );
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free(tmp.data[0]);
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}
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else
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{
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veejay_histogram_analyze( histogram_, frame, 0 );
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veejay_histogram_equalize( histogram_, frame, intensity, strength );
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}
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}
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