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/*
* 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_SUB_H
#define MPLAYER_SUB_H
#include <stddef.h>
#include <stdbool.h>
#include <stdint.h>
#include "mpvcore/m_option.h"
// NOTE: VOs must support at least SUBBITMAP_RGBA.
enum sub_bitmap_format {
SUBBITMAP_EMPTY = 0,// no bitmaps; always has num_parts==0
SUBBITMAP_LIBASS, // A8, with a per-surface blend color (libass.color)
SUBBITMAP_RGBA, // B8G8R8A8 (MSB=A, LSB=B), scaled, premultiplied alpha
SUBBITMAP_INDEXED, // scaled, bitmap points to osd_bmp_indexed
SUBBITMAP_COUNT
};
// For SUBBITMAP_INDEXED
struct osd_bmp_indexed {
uint8_t *bitmap;
// Each entry is like a pixel in SUBBITMAP_RGBA format, but using straight
// alpha.
uint32_t palette[256];
};
struct sub_bitmap {
void *bitmap;
int stride;
// Note: not clipped, going outside the screen area is allowed
// (except for SUBBITMAP_LIBASS, which is always clipped)
int w, h;
int x, y;
int dw, dh;
union {
struct {
uint32_t color;
} libass;
};
};
struct sub_bitmaps {
// For VO cache state (limited by MAX_OSD_PARTS)
int render_index;
enum sub_bitmap_format format;
// If false, dw==w && dh==h.
// SUBBITMAP_LIBASS is never scaled.
bool scaled;
struct sub_bitmap *parts;
int num_parts;
// Incremented on each change
int bitmap_id, bitmap_pos_id;
};
struct mp_osd_res {
int w, h; // screen dimensions, including black borders
int mt, mb, ml, mr; // borders (top, bottom, left, right)
double display_par;
double video_par; // PAR of the original video (for some sub decoders)
};
enum mp_osdtype {
OSDTYPE_SUB,
OSDTYPE_SUBTEXT,
OSDTYPE_PROGBAR,
OSDTYPE_OSD,
MAX_OSD_PARTS
};
#define OSD_CONV_CACHE_MAX 4
struct osd_object {
int type; // OSDTYPE_*
bool is_sub;
bool force_redraw;
// caches for OSD conversion (internal to render_object())
struct osd_conv_cache *cache[OSD_CONV_CACHE_MAX];
struct sub_bitmaps cached;
// VO cache state
int vo_bitmap_id;
int vo_bitmap_pos_id;
struct mp_osd_res vo_res;
// Internally used by osd_libass.c
struct ass_track *osd_track;
struct sub_bitmap *parts_cache;
};
struct osd_state {
struct osd_object *objs[MAX_OSD_PARTS];
struct ass_library *ass_library;
struct ass_renderer *ass_renderer;
double video_offset;
double vo_pts;
bool render_subs_in_filter;
bool render_bitmap_subs;
bool want_redraw;
// OSDTYPE_OSD
char *osd_text;
// OSDTYPE_SUBTEXT
char *sub_text;
// OSDTYPE_PROGBAR
int progbar_type; // <0: disabled, 1-255: symbol, else: no symbol
float progbar_value; // range 0.0-1.0
float *progbar_stops; // used for chapter indicators (0.0-1.0 each)
int progbar_num_stops;
// OSDTYPE_SUB
struct dec_sub *dec_sub;
struct MPOpts *opts;
// Internal to sub.c
struct mp_draw_sub_cache *draw_cache;
// Internally used by osd_libass.c
struct ass_renderer *osd_render;
struct ass_library *osd_ass_library;
};
// Start of OSD symbols in osd_font.pfb
#define OSD_CODEPOINTS 0xE000
// OSD symbols. osd_font.pfb has them starting from codepoint OSD_CODEPOINTS.
// Symbols with a value >= 32 are normal unicode codepoints.
enum mp_osd_font_codepoints {
OSD_PLAY = 0x01,
OSD_PAUSE = 0x02,
OSD_STOP = 0x03,
OSD_REW = 0x04,
OSD_FFW = 0x05,
OSD_CLOCK = 0x06,
OSD_CONTRAST = 0x07,
OSD_SATURATION = 0x08,
OSD_VOLUME = 0x09,
OSD_BRIGHTNESS = 0x0A,
OSD_HUE = 0x0B,
OSD_BALANCE = 0x0C,
OSD_PANSCAN = 0x50,
OSD_PB_START = 0x10,
OSD_PB_0 = 0x11,
OSD_PB_END = 0x12,
OSD_PB_1 = 0x13,
};
struct osd_style_opts {
char *font;
float font_size;
struct m_color color;
struct m_color border_color;
struct m_color shadow_color;
struct m_color back_color;
float border_size;
float shadow_offset;
float spacing;
int margin_x;
int margin_y;
float blur;
};
extern const struct m_sub_options osd_style_conf;
struct osd_state *osd_create(struct MPOpts *opts, struct ass_library *asslib);
void osd_set_text(struct osd_state *osd, const char *text);
void osd_set_sub(struct osd_state *osd, const char *text);
void osd_changed(struct osd_state *osd, int new_value);
void osd_changed_all(struct osd_state *osd);
void osd_free(struct osd_state *osd);
enum mp_osd_draw_flags {
OSD_DRAW_SUB_FILTER = (1 << 0),
OSD_DRAW_SUB_ONLY = (1 << 1),
};
void osd_draw(struct osd_state *osd, struct mp_osd_res res,
double video_pts, int draw_flags,
const bool formats[SUBBITMAP_COUNT],
void (*cb)(void *ctx, struct sub_bitmaps *imgs), void *cb_ctx);
struct mp_image;
bool osd_draw_on_image(struct osd_state *osd, struct mp_osd_res res,
double video_pts, int draw_flags, struct mp_image *dest);
struct mp_image_pool;
void osd_draw_on_image_p(struct osd_state *osd, struct mp_osd_res res,
double video_pts, int draw_flags,
struct mp_image_pool *pool, struct mp_image *dest);
// defined in osd_libass.c and osd_dummy.c
void osd_object_get_bitmaps(struct osd_state *osd, struct osd_object *obj,
struct sub_bitmaps *out_imgs);
void osd_get_function_sym(char *buffer, size_t buffer_size, int osd_function);
void osd_init_backend(struct osd_state *osd);
void osd_destroy_backend(struct osd_state *osd);
#endif /* MPLAYER_SUB_H */
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