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https://github.com/mpv-player/mpv
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f3871193fc
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.
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/*
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* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
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*
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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 libass; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_ASS_MP_H
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#define MPLAYER_ASS_MP_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "config.h"
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#include "subreader.h"
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// This is probably arbitrary.
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// sd_lavc_conv might indirectly still assume this PlayResY, though.
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#define MP_ASS_FONT_PLAYRESY 288
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#define MP_ASS_RGBA(r, g, b, a) \
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(((r) << 24U) | ((g) << 16) | ((b) << 8) | (0xFF - (a)))
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// m_color argument
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#define MP_ASS_COLOR(c) MP_ASS_RGBA((c).r, (c).g, (c).b, (c).a)
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#ifdef CONFIG_ASS
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#include <ass/ass.h>
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#include <ass/ass_types.h>
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struct MPOpts;
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struct mp_osd_res;
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struct osd_style_opts;
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void mp_ass_set_style(ASS_Style *style, int res_y, struct osd_style_opts *opts);
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void mp_ass_add_default_styles(ASS_Track *track, struct MPOpts *opts);
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ASS_Track *mp_ass_default_track(ASS_Library *library, struct MPOpts *opts);
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ASS_Track *mp_ass_read_stream(ASS_Library *library, const char *fname,
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char *charset);
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struct MPOpts;
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void mp_ass_configure(ASS_Renderer *priv, struct MPOpts *opts,
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struct mp_osd_res *dim);
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void mp_ass_configure_fonts(ASS_Renderer *priv, struct osd_style_opts *opts);
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ASS_Library *mp_ass_init(struct MPOpts *opts);
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struct sub_bitmap;
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struct sub_bitmaps;
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void mp_ass_render_frame(ASS_Renderer *renderer, ASS_Track *track, double time,
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struct sub_bitmap **parts, struct sub_bitmaps *res);
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#endif /* CONFIG_ASS */
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#endif /* MPLAYER_ASS_MP_H */
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