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https://github.com/mpv-player/mpv
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078b275514
image_writer.c has code originating from vf_screenshot.c, vo_jpeg.c, and
potentially others. vo_image.c is based on a bunch of those VOs as well,
and the intention was to replace them with a single codebase.
vo_tga.c was written by someone who was not or not could be contacted,
but it doesn't matter anyway, as no code from that initial patch was
used.
One rather old patch (57f77bb41a) reordered by libjpeg patch API calls,
and the author of the patch was not contacted. But at least with the
smoothing_factor override removed, this pretty much exactly corresponds
to the official libjpeg API example (and might even reflect a change to
those - didn't dig deeper). This removes the -jpeg-smooth option. While
we're at it, remove all the other dropped jpeg options from the manpage
(which was forgotten in past changes).
69 lines
2.3 KiB
C
69 lines
2.3 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
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "options/m_option.h"
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struct mp_image;
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struct mp_log;
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struct image_writer_opts {
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int format;
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int high_bit_depth;
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int png_compression;
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int png_filter;
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int jpeg_quality;
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int jpeg_optimize;
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int jpeg_smooth;
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int jpeg_dpi;
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int jpeg_progressive;
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int jpeg_baseline;
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int jpeg_source_chroma;
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int tag_csp;
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};
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extern const struct image_writer_opts image_writer_opts_defaults;
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extern const struct m_option image_writer_opts[];
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// Return the file extension that will be used, e.g. "png".
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const char *image_writer_file_ext(const struct image_writer_opts *opts);
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// Map file extension to format ID - return 0 (which is invalid) if unknown.
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int image_writer_format_from_ext(const char *ext);
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/*
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* Save the given image under the given filename. The parameters csp and opts
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* are optional. All pixel formats supported by swscale are supported.
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*
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* File format and compression settings are controlled via the opts parameter.
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*
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* NOTE: The fields w/h/width/height of the passed mp_image must be all set
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* accordingly. Setting w and width or h and height to different values
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* can be used to store snapshots of anamorphic video.
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*/
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bool write_image(struct mp_image *image, const struct image_writer_opts *opts,
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const char *filename, struct mp_log *log);
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/* Return the image converted to the given format. If the pixel aspect ratio is
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* not 1:1, the image is scaled as well. Returns NULL on failure.
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*/
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struct mp_image *convert_image(struct mp_image *image, int destfmt,
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struct mp_log *log);
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// Debugging helper.
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void dump_png(struct mp_image *image, const char *filename, struct mp_log *log);
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