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
|
/* rotate.c
Copyright (c) 2003-2015 HandBrake Team
This file is part of the HandBrake source code
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License v2.
For full terms see the file COPYING file or visit http://www.gnu.org/licenses/gpl-2.0.html
*/
#include "handbrake/common.h"
#include "handbrake/avfilter_priv.h"
static int rotate_init(hb_filter_object_t * filter, hb_filter_init_t * init);
const char rotate_template[] =
"angle=^(0|90|180|270)$:hflip=^"HB_BOOL_REG"$:disable=^"HB_BOOL_REG"$";
hb_filter_object_t hb_filter_rotate =
{
.id = HB_FILTER_ROTATE,
.enforce_order = 1,
.skip = 1,
.name = "Rotate",
.settings = NULL,
.init = rotate_init,
.work = hb_avfilter_null_work,
.close = hb_avfilter_alias_close,
.settings_template = rotate_template,
};
/* Rotate Settings:
* degrees:mirror
*
* degrees - Rotation angle, may be one of 90, 180, or 270
* mirror - Mirror image around x axis
*
* Examples:
* Mode 180:1 Mirror then rotate 180'
* Mode 0:1 Mirror
* Mode 180:0 Rotate 180'
* Mode 90:0 Rotate 90'
* Mode 270:0 Rotate 270'
*
* Legacy Mode Examples (also accepted):
* Mode 1: Flip vertically (y0 becomes yN and yN becomes y0) (aka 180:1)
* Mode 2: Flip horizontally (x0 becomes xN and xN becomes x0) (aka 0:1)
* Mode 3: Flip both horizontally and vertically (aka 180:0)
* Mode 4: Rotate 90' (aka 90:0)
* Mode 7: Flip horiz & vert plus Rotate 90' (aka 270:0)
*/
static int rotate_init(hb_filter_object_t * filter, hb_filter_init_t * init)
{
hb_filter_private_t * pv = NULL;
pv = calloc(1, sizeof(struct hb_filter_private_s));
filter->private_data = pv;
if (pv == NULL)
{
return 1;
}
pv->input = *init;
hb_dict_t * settings = filter->settings;
int width = init->geometry.width;
int height = init->geometry.height;
const char * trans = NULL;
int angle = 0, flip = 0, hflip = 0, vflip = 0, tmp;
hb_dict_extract_int(&angle, settings, "angle");
hb_dict_extract_bool(&flip, settings, "hflip");
const char * clock;
const char * cclock;
if (flip)
{
clock = "clock_flip";
cclock = "cclock_flip";
}
else
{
clock = "clock";
cclock = "cclock";
}
switch (angle)
{
case 0:
hflip = flip;
break;
case 90:
trans = clock;
tmp = width;
width = height;
height = tmp;
break;
case 180:
vflip = 1;
hflip = !flip;
break;
case 270:
trans = cclock;
tmp = width;
width = height;
height = tmp;
break;
default:
break;
}
if (trans != NULL)
{
hb_dict_t * avfilter = hb_dict_init();
hb_dict_t * avsettings = hb_dict_init();
hb_dict_set(avsettings, "dir", hb_value_string(trans));
hb_dict_set(avfilter, "transpose", avsettings);
pv->avfilters = avfilter;
}
else if (hflip || vflip)
{
hb_value_array_t * avfilters = hb_value_array_init();
hb_dict_t * avfilter;
if (vflip)
{
avfilter = hb_dict_init();
hb_dict_set(avfilter, "vflip", hb_value_null());
hb_value_array_append(avfilters, avfilter);
}
if (hflip)
{
avfilter = hb_dict_init();
hb_dict_set(avfilter, "hflip", hb_value_null());
hb_value_array_append(avfilters, avfilter);
}
pv->avfilters = avfilter;
}
else
{
pv->avfilters = hb_value_null();
}
init->geometry.width = width;
init->geometry.height = height;
pv->output = *init;
return 0;
}
|
