mpv/video/image_writer.h

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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 "options/m_option.h"
struct mp_image;
struct mp_log;
struct image_writer_opts {
int format;
bool high_bit_depth;
int png_compression;
int png_filter;
int jpeg_quality;
bool jpeg_source_chroma;
bool webp_lossless;
int webp_quality;
int webp_compression;
double jxl_distance;
int jxl_effort;
char *avif_encoder;
char *avif_pixfmt;
char **avif_opts;
bool tag_csp;
};
extern const struct image_writer_opts image_writer_opts_defaults;
extern const struct m_option image_writer_opts[];
// Return the file extension that will be used, e.g. "png".
const char *image_writer_file_ext(const struct image_writer_opts *opts);
// Return whether the selected format likely supports >8 bit per component.
bool image_writer_high_depth(const struct image_writer_opts *opts);
// Return whether the selected format likely supports non-sRGB colorspaces
bool image_writer_flexible_csp(const struct image_writer_opts *opts);
// Map file extension to format ID - return 0 (which is invalid) if unknown.
int image_writer_format_from_ext(const char *ext);
/*
* Save the given image under the given filename. The parameters csp and opts
* are optional. All pixel formats supported by swscale are supported.
*
* File format and compression settings are controlled via the opts parameter.
*
* If global!=NULL, use command line scaler options etc.
*
* NOTE: The fields w/h/width/height of the passed mp_image must be all set
* accordingly. Setting w and width or h and height to different values
* can be used to store snapshots of anamorphic video.
*/
bool write_image(struct mp_image *image, const struct image_writer_opts *opts,
const char *filename, struct mpv_global *global,
struct mp_log *log, bool overwrite);
// Debugging helper.
void dump_png(struct mp_image *image, const char *filename, struct mp_log *log);