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mpv/sub/osd_state.h
wm4 7a76b577d8 command: extend osd-overlay command with bounds reporting
This is more or less a minimal hack to make _some_ text measurement
functionality available to scripts. Since libass does not support such a
thing, this simply uses the bounding box of the rendered text.

This is far from ideal. Problems include:
- using a bitmap bounding box
- additional memory waste and/or flushing caches
- dependency on window size
- odd small deviations with different window sizes (run osd-test.lua and
  resize the window after each timer update; the bounding boxes aren't
  adjusted in an overly useful way)
- inability to query the size _after_ actual rendering

But I guess it's a start. Since I'm aware that it's crap, add a threat
to the manpage that this may be changed/removed again. For now, I'm
interested whether anyone will have use for it in its current form, as
it's an often requested feature.
2020-03-06 18:20:11 +01:00

91 lines
1.8 KiB
C

#ifndef MP_OSD_STATE_H_
#define MP_OSD_STATE_H_
#include <pthread.h>
#include "osd.h"
enum mp_osdtype {
OSDTYPE_SUB,
OSDTYPE_SUB2, // IDs must be numerically successive
OSDTYPE_OSD,
OSDTYPE_EXTERNAL,
OSDTYPE_EXTERNAL2,
OSDTYPE_COUNT
};
struct ass_state {
struct mp_log *log;
struct ass_track *track;
struct ass_renderer *render;
struct ass_library *library;
int res_x, res_y;
bool changed;
struct mp_osd_res vo_res; // last known value
};
struct osd_object {
int type; // OSDTYPE_*
bool is_sub;
// OSDTYPE_OSD
bool osd_changed;
char *text;
struct osd_progbar_state progbar_state;
// OSDTYPE_SUB/OSDTYPE_SUB2
struct dec_sub *sub;
// OSDTYPE_EXTERNAL
struct osd_external **externals;
int num_externals;
// OSDTYPE_EXTERNAL2
struct sub_bitmaps *external2;
// VO cache state
int vo_change_id;
struct mp_osd_res vo_res;
// Internally used by osd_libass.c
bool changed;
struct ass_state ass;
struct mp_ass_packer *ass_packer;
struct ass_image **ass_imgs;
};
struct osd_external {
struct osd_external_ass ov;
struct ass_state ass;
};
struct osd_state {
pthread_mutex_t lock;
struct osd_object *objs[MAX_OSD_PARTS];
bool render_subs_in_filter;
double force_video_pts;
bool want_redraw;
bool want_redraw_notification;
struct m_config_cache *opts_cache;
struct mp_osd_render_opts *opts;
struct mpv_global *global;
struct mp_log *log;
struct mp_draw_sub_cache *draw_cache;
};
// defined in osd_libass.c and osd_dummy.c
void osd_object_get_bitmaps(struct osd_state *osd, struct osd_object *obj,
int format, struct sub_bitmaps *out_imgs);
void osd_init_backend(struct osd_state *osd);
void osd_destroy_backend(struct osd_state *osd);
#endif