mirror of
https://github.com/game-stop/veejay.git
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117 lines
3.2 KiB
C
117 lines
3.2 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 "common.h"
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#include <veejaycore/vjmem.h>
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#include "autoeq.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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typedef struct {
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void *histogram_;
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uint8_t *tmp;
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} autoeq_t;
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void *autoeq_malloc(int w, int h)
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{
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autoeq_t *a = (autoeq_t*) vj_calloc(sizeof(autoeq_t));
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if(!a) {
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return NULL;
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}
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a->tmp = (uint8_t*) vj_calloc(sizeof(uint8_t) * RUP8(w*h));
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if(!a->tmp) {
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free(a);
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return NULL;
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}
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a->histogram_ = veejay_histogram_new();
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if(!a->histogram_) {
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free(a->tmp);
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free(a);
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return NULL;
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}
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return (void*) a;
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}
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void autoeq_free(void *ptr)
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{
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autoeq_t *a = (autoeq_t*) ptr;
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veejay_histogram_del(a->histogram_);
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free(a->tmp);
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free(a);
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}
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void autoeq_apply( void *ptr, VJFrame *frame,int *args) {
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int val = args[0];
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int intensity = args[1];
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int strength = args[2];
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autoeq_t *a = (autoeq_t*) ptr;
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const int len = frame->len;
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const int uv_len = frame->uv_len;
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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] = a->tmp;
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vj_frame_copy1( frame->data[0], tmp.data[0], len );
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veejay_histogram_draw( a->histogram_,&tmp, frame, intensity, strength );
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vj_frame_clear1( frame->data[1], 128, uv_len );
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vj_frame_clear1( frame->data[2], 128, uv_len );
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}
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else
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{
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veejay_histogram_analyze( a->histogram_, frame, 0 );
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veejay_histogram_equalize( a->histogram_, frame, intensity, strength );
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}
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}
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