mirror of
https://github.com/game-stop/veejay.git
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70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/*
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* Linux VeeJay
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*
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* Copyright(C)2010 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 <ctmf/ctmf.h>
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#include "median.h"
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vj_effect *medianfilter_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 = 1;
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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] = (h / 4) - 1;
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ve->defaults[0] = 3;// 255;
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ve->description = "Constant Time Median Filter";
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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, "Value" );
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return ve;
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}
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void medianfilter_apply( VJFrame *frame, int val)
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{
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const unsigned int width = frame->width;
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const unsigned int height = frame->height;
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const int len = frame->len;
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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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if( val == 0 )
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return;
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uint8_t *buffer = (uint8_t*) vj_malloc(sizeof(uint8_t)*len*3);
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veejay_memset( buffer,0, len*3);
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ctmf( Y, buffer, width,height,width,width,val,1,1024*1024*8);
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ctmf( Cb,buffer + (len), width,height/2,width,width,val,1,512*1024);
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ctmf( Cr,buffer + (len*2), width,height/2,width,width,val,1,512*1024);
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veejay_memcpy( Y, buffer, len);
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veejay_memcpy( Cb,buffer + (len), len);
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veejay_memcpy( Cr,buffer + (len*2), len);
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free(buffer);
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}
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