mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 15:52:25 +00:00
4de73fd5c1
vo->aspdat is basically an outdated version of vo->params, plus some weirdness. Get rid of it, which will allow further cleanups and which will make multithreading easier (less state to care about). Also, simplify some VO code by using mp_image_set_attributes() instead of caring about display size, colorspace, etc. manually. Add the function osd_res_from_image_params(), which is often needed in the case OSD renders into an image.
160 lines
3.9 KiB
C
160 lines
3.9 KiB
C
/*
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* This file is part of mplayer.
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*
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* mplayer 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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* mplayer 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 mplayer. 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 "bstr/bstr.h"
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#include "osdep/io.h"
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#include "options/path.h"
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#include "talloc.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/vfcap.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 = strerror(errno);
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if (errno == EEXIST) {
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struct stat stat_p;
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if (mp_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, int flags)
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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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if (p->outdir && vo->config_count < 1)
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if (!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 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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mp_image_setrefp(&p->current, mpi);
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}
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static void draw_osd(struct vo *vo, struct osd_state *osd)
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{
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struct priv *p = vo->priv;
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struct mp_osd_res dim = osd_res_from_image_params(vo->params);
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osd_draw_on_image(osd, dim, osd_get_vo_pts(osd), 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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(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, bstr0(p->outdir), bstr0(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, uint32_t fmt)
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{
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if (mp_sws_supported_format(fmt))
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return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
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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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vo->untimed = true;
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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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.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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.draw_osd = draw_osd,
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.flip_page = flip_page,
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.uninit = uninit,
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};
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