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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
#include <stdio.h>
#include <stdlib.h>
#include <string.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 hi, lo;
float frac;
int max, last, cnt;
};
#ifdef HAVE_MMX
static int diff_MMX(unsigned char *old, unsigned char *new, int os, int ns)
{
volatile short out[4];
asm (
"movl $8, %%ecx \n\t"
"pxor %%mm4, %%mm4 \n\t"
"pxor %%mm7, %%mm7 \n\t"
".balign 16 \n\t"
"1: \n\t"
"movq (%%"REG_S"), %%mm0 \n\t"
"movq (%%"REG_S"), %%mm2 \n\t"
"add %%"REG_a", %%"REG_S" \n\t"
"movq (%%"REG_D"), %%mm1 \n\t"
"add %%"REG_b", %%"REG_D" \n\t"
"psubusb %%mm1, %%mm2 \n\t"
"psubusb %%mm0, %%mm1 \n\t"
"movq %%mm2, %%mm0 \n\t"
"movq %%mm1, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm1 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"punpckhbw %%mm7, %%mm3 \n\t"
"paddw %%mm0, %%mm4 \n\t"
"paddw %%mm1, %%mm4 \n\t"
"paddw %%mm2, %%mm4 \n\t"
"paddw %%mm3, %%mm4 \n\t"
"decl %%ecx \n\t"
"jnz 1b \n\t"
"movq %%mm4, (%%"REG_d") \n\t"
"emms \n\t"
:
: "S" (old), "D" (new), "a" ((long)os), "b" ((long)ns), "d" (out)
: "memory"
);
return out[0]+out[1]+out[2]+out[3];
}
#endif
static int diff_C(unsigned char *old, unsigned char *new, int os, int ns)
{
int x, y, d=0;
for (y = 8; y; y--) {
for (x = 8; x; x--) {
d += abs(new[x] - old[x]);
}
new += ns;
old += os;
}
return d;
}
static int (*diff)(unsigned char *, unsigned char *, int, int);
static int diff_to_drop_plane(int hi, int lo, float frac, unsigned char *old, unsigned char *new, int w, int h, int os, int ns)
{
int x, y;
int d, c=0;
int t = (w/16)*(h/16)*frac;
for (y = 0; y < h-7; y += 4) {
for (x = 8; x < w-7; x += 4) {
d = diff(old+x+y*os, new+x+y*ns, os, ns);
if (d > hi) return 0;
if (d > lo) {
c++;
if (c > t) return 0;
}
}
}
return 1;
}
static int diff_to_drop(int hi, int lo, float frac, mp_image_t *old, mp_image_t *new)
{
if (new->flags & MP_IMGFLAG_PLANAR) {
return diff_to_drop_plane(hi,lo,frac, old->planes[0], new->planes[0],
new->w, new->h, old->stride[0], new->stride[0])
&& diff_to_drop_plane(hi,lo,frac, old->planes[1], new->planes[1],
new->chroma_width, new->chroma_height,
old->stride[1], new->stride[1])
&& diff_to_drop_plane(hi,lo,frac, old->planes[2], new->planes[2],
new->chroma_width, new->chroma_height,
old->stride[2], new->stride[2]);
}
return diff_to_drop_plane(hi,lo,frac, old->planes[0], new->planes[0],
new->w*(new->bpp/8), new->h, old->stride[0], new->stride[0]);
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi)
{
mp_image_t *dmpi;
dmpi = vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
mpi->width, mpi->height);
dmpi->qscale = mpi->qscale;
dmpi->qstride = mpi->qstride;
dmpi->qscale_type = mpi->qscale_type;
if (diff_to_drop(vf->priv->hi, vf->priv->lo, vf->priv->frac, dmpi, mpi)) {
if (vf->priv->max == 0)
return 0;
else if ((vf->priv->max > 0) && (vf->priv->cnt++ < vf->priv->max))
return 0;
else if ((vf->priv->max < 0) && (vf->priv->last+1 >= -vf->priv->max))
return vf->priv->last=0;
}
vf->priv->last++;
vf->priv->cnt=0;
memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
dmpi->stride[0], mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(dmpi->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[1], mpi->stride[1]);
memcpy_pic(dmpi->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[2], mpi->stride[2]);
}
return vf_next_put_image(vf, dmpi);
}
static void uninit(struct vf_instance_s* vf)
{
free(vf->priv);
}
static int open(vf_instance_t *vf, char* args)
{
struct vf_priv_s *p;
vf->put_image = put_image;
vf->uninit = uninit;
vf->default_reqs = VFCAP_ACCEPT_STRIDE;
vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
p->max = 0;
p->hi = 64*12;
p->lo = 64*5;
p->frac = 0.33;
if (args) sscanf(args, "%d:%d:%d:%f", &p->max, &p->hi, &p->lo, &p->frac);
diff = diff_C;
#ifdef HAVE_MMX
if(gCpuCaps.hasMMX) diff = diff_MMX;
#endif
return 1;
}
vf_info_t vf_info_decimate = {
"near-duplicate frame remover",
"decimate",
"Rich Felker",
"",
open,
NULL
};
|
