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
|
/*
* 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 General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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 "options/options.h"
#include "video/img_format.h"
#include "video/mp_image.h"
#include "vf.h"
#include "sub/osd.h"
#include "sub/dec_sub.h"
#include "video/sws_utils.h"
#include "options/m_option.h"
struct vf_priv_s {
int opt_top_margin, opt_bottom_margin;
int outh, outw;
struct osd_state *osd;
struct mp_osd_res dim;
};
static int reconfig(struct vf_instance *vf, struct mp_image_params *in,
struct mp_image_params *out)
{
int width = in->w, height = in->h;
vf->priv->outh = height + vf->priv->opt_top_margin +
vf->priv->opt_bottom_margin;
vf->priv->outw = width;
vf->priv->dim = (struct mp_osd_res) {
.w = vf->priv->outw,
.h = vf->priv->outh,
.mt = vf->priv->opt_top_margin,
.mb = vf->priv->opt_bottom_margin,
.display_par = in->p_w / (double)in->p_h,
};
*out = *in;
out->w = vf->priv->outw;
out->h = vf->priv->outh;
return 0;
}
static void prepare_image(struct vf_instance *vf, struct mp_image *dmpi,
struct mp_image *mpi)
{
int y1 = MP_ALIGN_DOWN(vf->priv->opt_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, vf->priv->outh);
}
static struct mp_image *filter(struct vf_instance *vf, struct mp_image *mpi)
{
struct vf_priv_s *priv = vf->priv;
struct osd_state *osd = priv->osd;
if (vf->priv->opt_top_margin || vf->priv->opt_bottom_margin) {
struct mp_image *dmpi = vf_alloc_out_image(vf);
if (!dmpi)
return NULL;
mp_image_copy_attributes(dmpi, mpi);
prepare_image(vf, dmpi, mpi);
talloc_free(mpi);
mpi = dmpi;
}
if (!osd)
return mpi;
osd_draw_on_image_p(osd, priv->dim, mpi->pts, OSD_DRAW_SUB_FILTER,
vf->out_pool, mpi);
return mpi;
}
static int query_format(struct vf_instance *vf, unsigned int fmt)
{
if (!mp_sws_supported_format(fmt))
return 0;
return vf_next_query_format(vf, fmt);
}
static int control(vf_instance_t *vf, int request, void *data)
{
switch (request) {
case VFCTRL_INIT_OSD:
vf->priv->osd = data;
return CONTROL_TRUE;
}
return CONTROL_UNKNOWN;
}
static int vf_open(vf_instance_t *vf)
{
vf->reconfig = reconfig;
vf->query_format = query_format;
vf->control = control;
vf->filter = filter;
return 1;
}
#define OPT_BASE_STRUCT struct vf_priv_s
static const m_option_t vf_opts_fields[] = {
OPT_INTRANGE("bottom-margin", opt_bottom_margin, 0, 0, 2000),
OPT_INTRANGE("top-margin", opt_top_margin, 0, 0, 2000),
{0}
};
const vf_info_t vf_info_sub = {
.description = "Render subtitles",
.name = "sub",
.open = vf_open,
.priv_size = sizeof(struct vf_priv_s),
.options = vf_opts_fields,
};
|
