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//
// deinterlace - deinterlacing through pixel / line repitition
//
// written by Olaf Matthes <olaf.matthes@gmx.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// usage: deinterlace <line> [ with line = 0 or 1 ]
//
#include <stdio.h>
#include <string.h>
#include "plugin.h"
void perform_effect(struct frame f, struct args a)
{
short x, y, line = 0;
byte pixelsize = f.pixelformat/8;
pixel16 *p16, *c16;
pixel24 *p24, *c24;
pixel32 *p32, *c32;
char *t;
// get params
if(a.s)
{
line = atoi(a.s);
} // else keep 0
printf("deinterlace: %d\n", line);
y = f.height - line;
x = f.width;
switch(f.pixelformat)
{
case 16:
while(y > 0)
{
p16 = scanline16(f, y);
c16 = scanline16(f, y-1);
memcpy(p16, c16, x*pixelsize);
y -= 2;
}
break;
case 24:
while(y > 0)
{
p24 = scanline24(f, y);
c24 = scanline24(f, y-1);
memcpy(p24, c24, x*pixelsize);
y -= 2;
}
break;
case 32:
while(y > 0)
{
p32 = scanline32(f, y);
c32 = scanline32(f, y-1);
memcpy(p32, c32, x*pixelsize);
y -= 2;
}
break;
}
}
void perform_copy(struct frame f1, struct frame f2, struct args a)
{
printf("Using deinterlace as copy operation does nothing!\n");
}
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