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
|
/*
* Discrete wavelet transform
* Copyright (c) 2007 Kamil Nowosad
* Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <inttypes.h>
#include <stdio.h>
#include "libavutil/common.h"
#include "libavcodec/jpeg2000dwt.c"
#include "libavutil/lfg.h"
#define MAX_W 256
static int test_dwt(int *array, int *ref, int border[2][2], int decomp_levels, int type, int max_diff) {
int ret, j;
DWTContext s1={{{0}}}, *s= &s1;
int64_t err2 = 0;
ret = ff_jpeg2000_dwt_init(s, border, decomp_levels, type);
if (ret < 0) {
fprintf(stderr, "ff_jpeg2000_dwt_init failed\n");
return 1;
}
ret = ff_dwt_encode(s, array);
if (ret < 0) {
fprintf(stderr, "ff_dwt_encode failed\n");
return 1;
}
ret = ff_dwt_decode(s, array);
if (ret < 0) {
fprintf(stderr, "ff_dwt_encode failed\n");
return 1;
}
for (j = 0; j<MAX_W * MAX_W; j++) {
if (FFABS(array[j] - (int64_t)ref[j]) > max_diff) {
fprintf(stderr, "missmatch at %d (%d != %d) decomp:%d border %d %d %d %d\n",
j, array[j], ref[j],decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1]);
return 2;
}
err2 += (array[j] - ref[j]) * (int64_t)(array[j] - ref[j]);
array[j] = ref[j];
}
ff_dwt_destroy(s);
printf("%s, decomp:%2d border %3d %3d %3d %3d milli-err2:%9"PRId64"\n",
type == FF_DWT53 ? "5/3i" : "9/7i",
decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1],
1000*err2 / ((border[0][1] - border[0][0])*(border[1][1] - border[1][0])));
return 0;
}
static int test_dwtf(float *array, float *ref, int border[2][2], int decomp_levels, float max_diff) {
int ret, j;
DWTContext s1={{{0}}}, *s= &s1;
double err2 = 0;
ret = ff_jpeg2000_dwt_init(s, border, decomp_levels, FF_DWT97);
if (ret < 0) {
fprintf(stderr, "ff_jpeg2000_dwt_init failed\n");
return 1;
}
ret = ff_dwt_encode(s, array);
if (ret < 0) {
fprintf(stderr, "ff_dwt_encode failed\n");
return 1;
}
ret = ff_dwt_decode(s, array);
if (ret < 0) {
fprintf(stderr, "ff_dwt_encode failed\n");
return 1;
}
for (j = 0; j<MAX_W * MAX_W; j++) {
if (FFABS(array[j] - ref[j]) > max_diff) {
fprintf(stderr, "missmatch at %d (%f != %f) decomp:%d border %d %d %d %d\n",
j, array[j], ref[j],decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1]);
return 2;
}
err2 += (array[j] - ref[j]) * (array[j] - ref[j]);
array[j] = ref[j];
}
ff_dwt_destroy(s);
printf("9/7f, decomp:%2d border %3d %3d %3d %3d err2:%20.3f\n",
decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1],
err2 / ((border[0][1] - border[0][0])*(border[1][1] - border[1][0])));
return 0;
}
static int array[MAX_W * MAX_W];
static int ref [MAX_W * MAX_W];
static float arrayf[MAX_W * MAX_W];
static float reff [MAX_W * MAX_W];
int main(void) {
AVLFG prng;
int i,j;
int border[2][2];
int ret, decomp_levels;
av_lfg_init(&prng, 1);
for (i = 0; i<MAX_W * MAX_W; i++)
arrayf[i] = reff[i] = array[i] = ref[i] = av_lfg_get(&prng) % 2048;
for (i = 0; i < 100; i++) {
for (j=0; j<4; j++)
border[j>>1][j&1] = av_lfg_get(&prng) % MAX_W;
if (border[0][0] >= border[0][1] || border[1][0] >= border[1][1])
continue;
decomp_levels = av_lfg_get(&prng) % FF_DWT_MAX_DECLVLS;
ret = test_dwt(array, ref, border, decomp_levels, FF_DWT53, 0);
if (ret)
return ret;
ret = test_dwt(array, ref, border, decomp_levels, FF_DWT97_INT, FFMIN(7+5*decomp_levels, 15+3*decomp_levels));
if (ret)
return ret;
ret = test_dwtf(arrayf, reff, border, decomp_levels, 0.05);
if (ret)
return ret;
}
return 0;
}
|
