1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
* 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.
*/
#include <inttypes.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#include <ass/ass.h>
#include <ass/ass_types.h>
#include <libavutil/common.h>
#include "common/global.h"
#include "common/msg.h"
#include "options/path.h"
#include "ass_mp.h"
#include "osd.h"
#include "stream/stream.h"
#include "options/options.h"
// res_y should be track->PlayResY
// It determines scaling of font sizes and more.
void mp_ass_set_style(ASS_Style *style, double res_y,
const struct osd_style_opts *opts)
{
if (opts->font) {
if (!style->FontName || strcmp(style->FontName, opts->font) != 0) {
free(style->FontName);
style->FontName = strdup(opts->font);
style->treat_fontname_as_pattern = 1;
}
}
// libass_font_size = FontSize * (window_height / res_y)
// scale translates parameters from PlayResY=720 to res_y
double scale = res_y / 720.0;
style->FontSize = opts->font_size * scale;
style->PrimaryColour = MP_ASS_COLOR(opts->color);
style->SecondaryColour = style->PrimaryColour;
if (opts->back_color.a) {
style->OutlineColour = MP_ASS_COLOR(opts->back_color);
style->BorderStyle = 3; // opaque box
} else {
style->OutlineColour = MP_ASS_COLOR(opts->border_color);
style->BorderStyle = 1; // outline
}
style->BackColour = MP_ASS_COLOR(opts->shadow_color);
style->Outline = opts->border_size * scale;
style->Shadow = opts->shadow_offset * scale;
style->Spacing = opts->spacing * scale;
style->MarginL = opts->margin_x * scale;
style->MarginR = style->MarginL;
style->MarginV = opts->margin_y * scale;
style->ScaleX = 1.;
style->ScaleY = 1.;
#if LIBASS_VERSION >= 0x01020000
style->Blur = opts->blur;
#endif
}
// Add default styles, if the track does not have any styles yet.
// Apply style overrides if the user provides any.
void mp_ass_add_default_styles(ASS_Track *track, struct MPOpts *opts)
{
if (opts->ass_styles_file && opts->ass_style_override)
ass_read_styles(track, opts->ass_styles_file, opts->sub_cp);
if (track->n_styles == 0) {
if (!track->PlayResY) {
track->PlayResY = MP_ASS_FONT_PLAYRESY;
track->PlayResX = track->PlayResY * 4 / 3;
}
track->Kerning = true;
int sid = ass_alloc_style(track);
track->default_style = sid;
ASS_Style *style = track->styles + sid;
style->Name = strdup("Default");
style->Alignment = 2;
mp_ass_set_style(style, track->PlayResY, opts->sub_text_style);
}
if (opts->ass_style_override)
ass_process_force_style(track);
}
ASS_Track *mp_ass_default_track(ASS_Library *library, struct MPOpts *opts)
{
ASS_Track *track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
mp_ass_add_default_styles(track, opts);
return track;
}
void mp_ass_configure(ASS_Renderer *priv, struct MPOpts *opts,
struct mp_osd_res *dim)
{
ass_set_frame_size(priv, dim->w, dim->h);
ass_set_margins(priv, dim->mt, dim->mb, dim->ml, dim->mr);
int set_use_margins = 0;
#if LIBASS_VERSION >= 0x01010000
int set_sub_pos = 0;
#endif
float set_line_spacing = 0;
float set_font_scale = 1;
int set_hinting = 0;
if (opts->ass_style_override) {
set_use_margins = opts->ass_use_margins;
#if LIBASS_VERSION >= 0x01010000
set_sub_pos = 100 - opts->sub_pos;
#endif
set_line_spacing = opts->ass_line_spacing;
set_font_scale = opts->sub_scale;
set_hinting = opts->ass_hinting;
}
ass_set_use_margins(priv, set_use_margins);
#if LIBASS_VERSION >= 0x01010000
ass_set_line_position(priv, set_sub_pos);
#endif
#if LIBASS_VERSION >= 0x01000000
ass_set_shaper(priv, opts->ass_shaper);
#endif
ass_set_font_scale(priv, set_font_scale);
ass_set_hinting(priv, set_hinting);
ass_set_line_spacing(priv, set_line_spacing);
}
void mp_ass_configure_fonts(ASS_Renderer *priv, struct osd_style_opts *opts,
struct mpv_global *global, struct mp_log *log)
{
void *tmp = talloc_new(NULL);
char *default_font = mp_find_user_config_file(tmp, global, "subfont.ttf");
char *config = mp_find_config_file(tmp, global, "fonts.conf");
if (default_font && !mp_path_exists(default_font))
default_font = NULL;
mp_verbose(log, "Setting up fonts...\n");
ass_set_fonts(priv, default_font, opts->font, 1, config, 1);
mp_verbose(log, "Done.\n");
talloc_free(tmp);
}
void mp_ass_render_frame(ASS_Renderer *renderer, ASS_Track *track, double time,
struct sub_bitmap **parts, struct sub_bitmaps *res)
{
int changed;
ASS_Image *imgs = ass_render_frame(renderer, track, time, &changed);
if (changed == 2)
res->bitmap_id = ++res->bitmap_pos_id;
else if (changed)
res->bitmap_pos_id++;
res->format = SUBBITMAP_LIBASS;
res->parts = *parts;
res->num_parts = 0;
int num_parts_alloc = MP_TALLOC_ELEMS(res->parts);
for (struct ass_image *img = imgs; img; img = img->next) {
if (img->w == 0 || img->h == 0)
continue;
if (res->num_parts >= num_parts_alloc) {
num_parts_alloc = FFMAX(num_parts_alloc * 2, 32);
res->parts = talloc_realloc(NULL, res->parts, struct sub_bitmap,
num_parts_alloc);
}
struct sub_bitmap *p = &res->parts[res->num_parts];
p->bitmap = img->bitmap;
p->stride = img->stride;
p->libass.color = img->color;
p->dw = p->w = img->w;
p->dh = p->h = img->h;
p->x = img->dst_x;
p->y = img->dst_y;
res->num_parts++;
}
*parts = res->parts;
}
static int map_ass_level[] = {
MSGL_ERR, // 0 "FATAL errors"
MSGL_WARN,
MSGL_INFO,
MSGL_V,
MSGL_V,
MSGL_V, // 5 application recommended level
MSGL_DEBUG,
MSGL_TRACE, // 7 "verbose DEBUG"
};
static void message_callback(int level, const char *format, va_list va, void *ctx)
{
struct mp_log *log = ctx;
if (!log)
return;
level = map_ass_level[level];
mp_msg_va(log, level, format, va);
// libass messages lack trailing \n
mp_msg(log, level, "\n");
}
ASS_Library *mp_ass_init(struct mpv_global *global, struct mp_log *log)
{
char *path = mp_find_user_config_file(NULL, global, "fonts");
ASS_Library *priv = ass_library_init();
if (!priv)
abort();
ass_set_message_cb(priv, message_callback, log);
if (path)
ass_set_fonts_dir(priv, path);
ass_set_extract_fonts(priv, global->opts->use_embedded_fonts);
talloc_free(path);
return priv;
}
|
