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/*
* This file is part of mpv.
*
* mpv 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 2.1 of the License, or (at your option) any later version.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdbool.h>
#include <sys/stat.h>
#include <libswscale/swscale.h>
#include "config.h"
#include "misc/bstr.h"
#include "osdep/io.h"
#include "options/m_config.h"
#include "options/path.h"
#include "mpv_talloc.h"
#include "common/common.h"
#include "common/msg.h"
#include "video/out/vo.h"
#include "video/csputils.h"
#include "video/mp_image.h"
#include "video/fmt-conversion.h"
#include "video/image_writer.h"
#include "video/sws_utils.h"
#include "sub/osd.h"
#include "options/m_option.h"
static const struct m_sub_options image_writer_conf = {
.opts = image_writer_opts,
.size = sizeof(struct image_writer_opts),
.defaults = &image_writer_opts_defaults,
};
struct vo_image_opts {
struct image_writer_opts *opts;
char *outdir;
};
#define OPT_BASE_STRUCT struct vo_image_opts
static const struct m_sub_options vo_image_conf = {
.opts = (const struct m_option[]) {
OPT_SUBSTRUCT("vo-image", opts, image_writer_conf, 0),
OPT_STRING("vo-image-outdir", outdir, M_OPT_FILE),
{0},
},
.size = sizeof(struct vo_image_opts),
};
struct priv {
struct vo_image_opts *opts;
struct mp_image *current;
int frame;
};
static bool checked_mkdir(struct vo *vo, const char *buf)
{
MP_INFO(vo, "Creating output directory '%s'...\n", buf);
if (mkdir(buf, 0755) < 0) {
char *errstr = mp_strerror(errno);
if (errno == EEXIST) {
struct stat stat_p;
if (stat(buf, &stat_p ) == 0 && S_ISDIR(stat_p.st_mode))
return true;
}
MP_ERR(vo, "Error creating output directory: %s\n", errstr);
return false;
}
return true;
}
static int reconfig(struct vo *vo, struct mp_image_params *params)
{
struct priv *p = vo->priv;
mp_image_unrefp(&p->current);
return 0;
}
static void draw_image(struct vo *vo, mp_image_t *mpi)
{
struct priv *p = vo->priv;
p->current = mpi;
struct mp_osd_res dim = osd_res_from_image_params(vo->params);
osd_draw_on_image(vo->osd, dim, mpi->pts, OSD_DRAW_SUB_ONLY, p->current);
}
static void flip_page(struct vo *vo)
{
struct priv *p = vo->priv;
if (!p->current)
return;
(p->frame)++;
void *t = talloc_new(NULL);
char *filename = talloc_asprintf(t, "%08d.%s", p->frame,
image_writer_file_ext(p->opts->opts));
if (p->opts->outdir && strlen(p->opts->outdir))
filename = mp_path_join(t, p->opts->outdir, filename);
MP_INFO(vo, "Saving %s\n", filename);
write_image(p->current, p->opts->opts, filename, vo->log);
talloc_free(t);
mp_image_unrefp(&p->current);
}
static int query_format(struct vo *vo, int fmt)
{
if (mp_sws_supported_format(fmt))
return 1;
return 0;
}
static void uninit(struct vo *vo)
{
struct priv *p = vo->priv;
mp_image_unrefp(&p->current);
}
static int preinit(struct vo *vo)
{
struct priv *p = vo->priv;
p->opts = mp_get_config_group(vo, vo->global, &vo_image_conf);
if (p->opts->outdir && !checked_mkdir(vo, p->opts->outdir))
return -1;
return 0;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
return VO_NOTIMPL;
}
const struct vo_driver video_out_image =
{
.description = "Write video frames to image files",
.name = "image",
.untimed = true,
.priv_size = sizeof(struct priv),
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.flip_page = flip_page,
.uninit = uninit,
.global_opts = &vo_image_conf,
};
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