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mpv/sub/ass_mp.h
wm4 f3871193fc sd_srt, sd_microdvd: set ASS script resolution
Both converters can output \pos and deal with font sizes, so they assume
a specific script resolution (PlayResX/PlayResY). The implicit
assumption was that a specific resolution was guaranteed. The
MP_ASS_FONT_PLAYRESY constant is connected to this.

Better make it explicit, so that the implicit dependency on
MP_ASS_FONT_PLAYRESY is removed. (Unfortunately, libavcodec sub
converters still don't set PlayResX/PlayResY explicitly, so the value
set by that constant can't be declared as arbitrary yet.)

PlayResY=288 is most likely the SSA natural script resolution (or
something like this?), as well as the libass and VSFilter default.
PlayResX=384 is the fallback value set by libass if PlayResY is set to
288, and PlayResX is unset.
2013-06-03 23:00:39 +02:00

69 lines
2.2 KiB
C

/*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with libass; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_ASS_MP_H
#define MPLAYER_ASS_MP_H
#include <stdint.h>
#include <stdbool.h>
#include "config.h"
#include "subreader.h"
// This is probably arbitrary.
// sd_lavc_conv might indirectly still assume this PlayResY, though.
#define MP_ASS_FONT_PLAYRESY 288
#define MP_ASS_RGBA(r, g, b, a) \
(((r) << 24U) | ((g) << 16) | ((b) << 8) | (0xFF - (a)))
// m_color argument
#define MP_ASS_COLOR(c) MP_ASS_RGBA((c).r, (c).g, (c).b, (c).a)
#ifdef CONFIG_ASS
#include <ass/ass.h>
#include <ass/ass_types.h>
struct MPOpts;
struct mp_osd_res;
struct osd_style_opts;
void mp_ass_set_style(ASS_Style *style, int res_y, struct osd_style_opts *opts);
void mp_ass_add_default_styles(ASS_Track *track, struct MPOpts *opts);
ASS_Track *mp_ass_default_track(ASS_Library *library, struct MPOpts *opts);
ASS_Track *mp_ass_read_stream(ASS_Library *library, const char *fname,
char *charset);
struct MPOpts;
void mp_ass_configure(ASS_Renderer *priv, struct MPOpts *opts,
struct mp_osd_res *dim);
void mp_ass_configure_fonts(ASS_Renderer *priv, struct osd_style_opts *opts);
ASS_Library *mp_ass_init(struct MPOpts *opts);
struct sub_bitmap;
struct sub_bitmaps;
void mp_ass_render_frame(ASS_Renderer *renderer, ASS_Track *track, double time,
struct sub_bitmap **parts, struct sub_bitmaps *res);
#endif /* CONFIG_ASS */
#endif /* MPLAYER_ASS_MP_H */