mirror of https://github.com/mpv-player/mpv
155 lines
3.7 KiB
C
155 lines
3.7 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <stdbool.h>
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#include <sys/stat.h>
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#include <libswscale/swscale.h>
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#include "config.h"
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#include "misc/bstr.h"
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#include "osdep/io.h"
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#include "options/path.h"
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#include "mpv_talloc.h"
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#include "common/common.h"
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#include "common/msg.h"
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#include "video/out/vo.h"
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#include "video/csputils.h"
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#include "video/mp_image.h"
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#include "video/fmt-conversion.h"
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#include "video/image_writer.h"
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#include "video/sws_utils.h"
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#include "sub/osd.h"
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#include "options/m_option.h"
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struct priv {
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struct image_writer_opts *opts;
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char *outdir;
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struct mp_image *current;
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int frame;
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};
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static bool checked_mkdir(struct vo *vo, const char *buf)
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{
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MP_INFO(vo, "Creating output directory '%s'...\n", buf);
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if (mkdir(buf, 0755) < 0) {
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char *errstr = mp_strerror(errno);
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if (errno == EEXIST) {
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struct stat stat_p;
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if (stat(buf, &stat_p ) == 0 && S_ISDIR(stat_p.st_mode))
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return true;
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}
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MP_ERR(vo, "Error creating output directory: %s\n", errstr);
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return false;
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}
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return true;
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}
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static int reconfig(struct vo *vo, struct mp_image_params *params)
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{
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struct priv *p = vo->priv;
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mp_image_unrefp(&p->current);
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return 0;
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}
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static void draw_image(struct vo *vo, mp_image_t *mpi)
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{
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struct priv *p = vo->priv;
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p->current = mpi;
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struct mp_osd_res dim = osd_res_from_image_params(vo->params);
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osd_draw_on_image(vo->osd, dim, mpi->pts, OSD_DRAW_SUB_ONLY, p->current);
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}
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static void flip_page(struct vo *vo)
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{
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struct priv *p = vo->priv;
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if (!p->current)
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return;
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(p->frame)++;
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void *t = talloc_new(NULL);
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char *filename = talloc_asprintf(t, "%08d.%s", p->frame,
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image_writer_file_ext(p->opts));
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if (p->outdir && strlen(p->outdir))
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filename = mp_path_join(t, p->outdir, filename);
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MP_INFO(vo, "Saving %s\n", filename);
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write_image(p->current, p->opts, filename, vo->log);
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talloc_free(t);
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mp_image_unrefp(&p->current);
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}
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static int query_format(struct vo *vo, int fmt)
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{
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if (mp_sws_supported_format(fmt))
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return 1;
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return 0;
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}
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static void uninit(struct vo *vo)
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{
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struct priv *p = vo->priv;
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mp_image_unrefp(&p->current);
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}
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static int preinit(struct vo *vo)
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{
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struct priv *p = vo->priv;
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if (p->outdir && !checked_mkdir(vo, p->outdir))
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return -1;
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return 0;
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}
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static int control(struct vo *vo, uint32_t request, void *data)
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{
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return VO_NOTIMPL;
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}
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#define OPT_BASE_STRUCT struct priv
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const struct vo_driver video_out_image =
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{
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.description = "Write video frames to image files",
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.name = "image",
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.untimed = true,
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.priv_size = sizeof(struct priv),
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.options = (const struct m_option[]) {
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OPT_SUBSTRUCT("", opts, image_writer_conf, 0),
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OPT_STRING("outdir", outdir, 0),
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{0},
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},
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.preinit = preinit,
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.query_format = query_format,
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.reconfig = reconfig,
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.control = control,
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.draw_image = draw_image,
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.flip_page = flip_page,
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.uninit = uninit,
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};
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