mpv/video/filter/vf_rotate.c

71 lines
1.9 KiB
C

/*
* 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 "common/msg.h"
#include "options/m_option.h"
#include "vf.h"
#include "vf_lavfi.h"
struct vf_priv_s {
int angle;
struct vf_lw_opts *lw_opts;
};
static int vf_open(vf_instance_t *vf)
{
struct vf_priv_s *p = vf->priv;
static const char *rot[] = {
"null",
"transpose=clock",
"vflip,hflip",
"transpose=cclock",
};
if (vf_lw_set_graph(vf, p->lw_opts, NULL, "%s", rot[p->angle]) >= 0)
return 1;
MP_FATAL(vf, "Requires libavfilter.\n");
return 1;
}
#define OPT_BASE_STRUCT struct vf_priv_s
const vf_info_t vf_info_rotate = {
.description = "rotate",
.name = "rotate",
.open = vf_open,
.priv_size = sizeof(struct vf_priv_s),
.options = (const struct m_option[]){
OPT_CHOICE("angle", angle, 0,
({"0", 0},
{"90", 1},
{"180", 2},
{"270", 3})),
OPT_SUBSTRUCT("", lw_opts, vf_lw_conf, 0),
{0}
},
};
//===========================================================================//