mpv/video/filter/vf_swapuv.c

68 lines
1.9 KiB
C

/*
* Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include "core/mp_msg.h"
#include "video/img_format.h"
#include "video/mp_image.h"
#include "vf.h"
static struct mp_image *filter(struct vf_instance *vf, struct mp_image *mpi)
{
struct mp_image old = *mpi;
mpi->planes[1] = old.planes[2];
mpi->stride[1] = old.stride[2];
mpi->planes[2] = old.planes[1];
mpi->stride[2] = old.stride[1];
return mpi;
}
static int query_format(struct vf_instance *vf, unsigned int fmt)
{
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(fmt);
if (!(desc.flags & MP_IMGFLAG_BYTE_ALIGNED))
return 0;
if (!(desc.num_planes >= 3 && desc.bytes[1] == desc.bytes[2]))
return 0;
return vf_next_query_format(vf, fmt);
}
static int vf_open(vf_instance_t *vf, char *args){
vf->filter=filter;
vf->query_format=query_format;
return 1;
}
const vf_info_t vf_info_swapuv = {
"UV swapper",
"swapuv",
"Michael Niedermayer",
"",
vf_open,
NULL
};
//===========================================================================//