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
|
/*
* 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "mp_msg.h"
#include "cpudetect.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
struct vf_priv_s {
int skipline;
int scalew;
int scaleh;
};
static void toright(unsigned char *dst[3], unsigned char *src[3],
int dststride[3], int srcstride[3],
int w, int h, struct vf_priv_s* p)
{
int k;
for (k = 0; k < 3; k++) {
unsigned char* fromL = src[k];
unsigned char* fromR = src[k];
unsigned char* to = dst[k];
int src = srcstride[k];
int dst = dststride[k];
int ss;
unsigned int dd;
int i;
if (k > 0) {
i = h / 4 - p->skipline / 2;
ss = src * (h / 4 + p->skipline / 2);
dd = w / 4;
} else {
i = h / 2 - p->skipline;
ss = src * (h / 2 + p->skipline);
dd = w / 2;
}
fromR += ss;
for ( ; i > 0; i--) {
int j;
unsigned char* t = to;
unsigned char* sL = fromL;
unsigned char* sR = fromR;
if (p->scalew == 1) {
for (j = dd; j > 0; j--) {
*t++ = (sL[0] + sL[1]) / 2;
sL+=2;
}
for (j = dd ; j > 0; j--) {
*t++ = (sR[0] + sR[1]) / 2;
sR+=2;
}
} else {
for (j = dd * 2 ; j > 0; j--)
*t++ = *sL++;
for (j = dd * 2 ; j > 0; j--)
*t++ = *sR++;
}
if (p->scaleh == 1) {
fast_memcpy(to + dst, to, dst);
to += dst;
}
to += dst;
fromL += src;
fromR += src;
}
//printf("K %d %d %d %d %d \n", k, w, h, src, dst);
}
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
{
mp_image_t *dmpi;
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next, IMGFMT_YV12,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE |
(vf->priv->scaleh == 1) ? MP_IMGFLAG_READABLE : 0,
mpi->w * vf->priv->scalew,
mpi->h / vf->priv->scaleh - vf->priv->skipline);
toright(dmpi->planes, mpi->planes, dmpi->stride,
mpi->stride, mpi->w, mpi->h, vf->priv);
return vf_next_put_image(vf,dmpi, pts);
}
static int config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
/* FIXME - also support UYVY output? */
return vf_next_config(vf, width * vf->priv->scalew,
height / vf->priv->scaleh - vf->priv->skipline, d_width, d_height, flags, IMGFMT_YV12);
}
static int query_format(struct vf_instance *vf, unsigned int fmt)
{
/* FIXME - really any YUV 4:2:0 input format should work */
switch (fmt) {
case IMGFMT_YV12:
case IMGFMT_IYUV:
case IMGFMT_I420:
return vf_next_query_format(vf, IMGFMT_YV12);
}
return 0;
}
static void uninit(struct vf_instance *vf)
{
free(vf->priv);
}
static int vf_open(vf_instance_t *vf, char *args)
{
vf->config=config;
vf->query_format=query_format;
vf->put_image=put_image;
vf->uninit=uninit;
vf->priv = calloc(1, sizeof (struct vf_priv_s));
vf->priv->skipline = 0;
vf->priv->scalew = 1;
vf->priv->scaleh = 2;
if (args) sscanf(args, "%d:%d:%d", &vf->priv->skipline, &vf->priv->scalew, &vf->priv->scaleh);
return 1;
}
const vf_info_t vf_info_down3dright = {
"convert stereo movie from top-bottom to left-right field",
"down3dright",
"Zdenek Kabelac",
"",
vf_open,
NULL
};
|
