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
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "../config.h"
#include "../mp_msg.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "../libvo/fastmemcpy.h"
#include "../postproc/rgb2rgb.h"
struct vf_priv_s {
int direction;
};
static void rotate(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,int dir){
int y;
if(dir&1){
src+=srcstride*(w-1);
srcstride*=-1;
}
if(dir&2){
dst+=dststride*(h-1);
dststride*=-1;
}
for(y=0;y<h;y++){
int x;
switch(bpp){
case 1:
for(x=0;x<w;x++) dst[x]=src[y+x*srcstride];
break;
case 2:
for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+y*2+x*srcstride));
break;
case 3:
for(x=0;x<w;x++){
dst[x*3+0]=src[0+y*3+x*srcstride];
dst[x*3+1]=src[1+y*3+x*srcstride];
dst[x*3+2]=src[2+y*3+x*srcstride];
}
break;
case 4:
for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+y*4+x*srcstride));
}
dst+=dststride;
}
}
//===========================================================================//
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
if (vf->priv->direction & 4) {
if (width<height) vf->priv->direction&=3;
}
if (vf->priv->direction & 4){
vf->put_image=vf_next_put_image; // passthru mode!
if (vf->next->draw_slice) vf->draw_slice=vf_next_draw_slice;
/* FIXME: this should be in an other procedure in vf.c; that should always check
whether the filter after the passthrough one still (not)supports slices */
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
return vf_next_config(vf,height,width,d_height,d_width,flags,outfmt);
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
mp_image_t *dmpi;
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->h, mpi->w);
if(mpi->flags&MP_IMGFLAG_PLANAR){
rotate(dmpi->planes[0],mpi->planes[0],
dmpi->stride[0],mpi->stride[0],
dmpi->w,dmpi->h,1,vf->priv->direction);
rotate(dmpi->planes[1],mpi->planes[1],
dmpi->stride[1],mpi->stride[1],
dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,vf->priv->direction);
rotate(dmpi->planes[2],mpi->planes[2],
dmpi->stride[2],mpi->stride[2],
dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,vf->priv->direction);
} else {
rotate(dmpi->planes[0],mpi->planes[0],
dmpi->stride[0],mpi->stride[0],
dmpi->w,dmpi->h,dmpi->bpp>>3,vf->priv->direction);
dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
}
return vf_next_put_image(vf,dmpi);
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
if(IMGFMT_IS_RGB(fmt) || IMGFMT_IS_BGR(fmt)) return vf_next_query_format(vf, fmt);
// we can support only symmetric (chroma_x_shift==chroma_y_shift) YUV formats:
switch(fmt) {
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YVU9:
// case IMGFMT_IF09:
case IMGFMT_Y8:
case IMGFMT_Y800:
case IMGFMT_444P:
return vf_next_query_format(vf, fmt);
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->priv=malloc(sizeof(struct vf_priv_s));
vf->priv->direction=args?atoi(args):0;
return 1;
}
vf_info_t vf_info_rotate = {
"rotate",
"rotate",
"A'rpi",
"",
open,
NULL
};
//===========================================================================//
|
