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
|
/*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include <libavutil/common.h>
#include "config.h"
#include "common/msg.h"
#include "filters/filter.h"
#include "filters/filter_internal.h"
#include "filters/user_filters.h"
#include "options/options.h"
#include "video/img_format.h"
#include "video/mp_image.h"
#include "video/mp_image_pool.h"
#include "sub/osd.h"
#include "sub/dec_sub.h"
#include "video/sws_utils.h"
#include "options/m_option.h"
struct vf_sub_opts {
int top_margin, bottom_margin;
};
struct priv {
struct vf_sub_opts *opts;
struct mp_image_pool *pool;
};
static void vf_sub_process(struct mp_filter *f)
{
struct priv *priv = f->priv;
if (!mp_pin_can_transfer_data(f->ppins[1], f->ppins[0]))
return;
struct mp_frame frame = mp_pin_out_read(f->ppins[0]);
if (mp_frame_is_signaling(frame)) {
mp_pin_in_write(f->ppins[1], frame);
return;
}
struct mp_stream_info *info = mp_filter_find_stream_info(f);
struct osd_state *osd = info ? info->osd : NULL;
if (!osd)
goto error;
osd_set_render_subs_in_filter(osd, true);
if (frame.type != MP_FRAME_VIDEO)
goto error;
struct mp_image *mpi = frame.data;
if (!mp_sws_supported_format(mpi->imgfmt))
goto error;
struct mp_osd_res dim = {
.w = mpi->w,
.h = mpi->h + priv->opts->top_margin + priv->opts->bottom_margin,
.mt = priv->opts->top_margin,
.mb = priv->opts->bottom_margin,
.display_par = mpi->params.p_w / (double)mpi->params.p_h,
};
if (dim.w != mpi->w || dim.h != mpi->h) {
struct mp_image *dmpi =
mp_image_pool_get(priv->pool, mpi->imgfmt, dim.w, dim.h);
if (!dmpi)
goto error;
mp_image_copy_attributes(dmpi, mpi);
int y1 = MP_ALIGN_DOWN(priv->opts->top_margin, mpi->fmt.align_y);
int y2 = MP_ALIGN_DOWN(y1 + mpi->h, mpi->fmt.align_y);
struct mp_image cropped = *dmpi;
mp_image_crop(&cropped, 0, y1, mpi->w, y1 + mpi->h);
mp_image_copy(&cropped, mpi);
mp_image_clear(dmpi, 0, 0, dmpi->w, y1);
mp_image_clear(dmpi, 0, y2, dmpi->w, dim.h);
mp_frame_unref(&frame);
mpi = dmpi;
frame = (struct mp_frame){MP_FRAME_VIDEO, mpi};
}
osd_draw_on_image_p(osd, dim, mpi->pts, OSD_DRAW_SUB_FILTER, priv->pool, mpi);
mp_pin_in_write(f->ppins[1], frame);
return;
error:
MP_ERR(f, "unsupported format, missing OSD, or failed allocation\n");
mp_frame_unref(&frame);
mp_filter_internal_mark_failed(f);
}
static const struct mp_filter_info vf_sub_filter = {
.name = "sub",
.process = vf_sub_process,
.priv_size = sizeof(struct priv),
};
static struct mp_filter *vf_sub_create(struct mp_filter *parent, void *options)
{
struct mp_filter *f = mp_filter_create(parent, &vf_sub_filter);
if (!f) {
talloc_free(options);
return NULL;
}
MP_WARN(f, "This filter is deprecated and will be removed (no replacement)\n");
mp_filter_add_pin(f, MP_PIN_IN, "in");
mp_filter_add_pin(f, MP_PIN_OUT, "out");
struct priv *priv = f->priv;
priv->opts = talloc_steal(priv, options);
priv->pool = mp_image_pool_new(priv);
return f;
}
#define OPT_BASE_STRUCT struct vf_sub_opts
static const m_option_t vf_opts_fields[] = {
OPT_INTRANGE("bottom-margin", bottom_margin, 0, 0, 2000),
OPT_INTRANGE("top-margin", top_margin, 0, 0, 2000),
{0}
};
const struct mp_user_filter_entry vf_sub = {
.desc = {
.description = "Render subtitles",
.name = "sub",
.priv_size = sizeof(OPT_BASE_STRUCT),
.options = vf_opts_fields,
},
.create = vf_sub_create,
};
|
