weave.c

来自「linux下的MPEG1」· C语言 代码 · 共 73 行

/**
 * Pure weave deinterlacing plugin.
 *
 * Copyright (C) 2002 Billy Biggs <[e-mail]>.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdio.h>

#if HAVE_INTTYPES_H
#include <inttypes.h>
#else
#include <stdint.h>
#endif

#include "speedy.h"
#include "deinterlace.h"
#include "plugins.h"

static void deinterlace_scanline_weave( uint8_t *output,
                                        deinterlace_scanline_data_t *data,
                                        int width )
{
    blit_packed422_scanline( output, data->m1, width );
}

static void copy_scanline( uint8_t *output,
                           deinterlace_scanline_data_t *data,
                           int width )
{
    blit_packed422_scanline( output, data->m0, width );
}


static deinterlace_method_t weavemethod =
{
    "Weave Last Field",
    "Weave",
    2,
    0,
    0,
    1,
    deinterlace_scanline_weave,
    copy_scanline,
    0,
    0,
    "Only updates the most recent field."
};

deinterlace_method_t *weave_get_method( void )
{
    return &weavemethod;
}