FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/tests/jpeg2000dwt.c
Date: 2021-09-26 18:22:30
Exec Total Coverage
Lines: 53 74 71.6%
Branches: 29 40 72.5%

Line Branch Exec Source
1 /*
2 * Discrete wavelet transform
3 * Copyright (c) 2007 Kamil Nowosad
4 * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include "libavcodec/jpeg2000dwt.c"
24
25 #include "libavutil/lfg.h"
26
27 #define MAX_W 256
28
29 40 static int test_dwt(int *array, int *ref, int border[2][2], int decomp_levels, int type, int max_diff) {
30 int ret, j;
31 40 DWTContext s1={{{0}}}, *s= &s1;
32 40 int64_t err2 = 0;
33
34 40 ret = ff_jpeg2000_dwt_init(s, border, decomp_levels, type);
35
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40 if (ret < 0) {
36 fprintf(stderr, "ff_jpeg2000_dwt_init failed\n");
37 return 1;
38 }
39 40 ret = ff_dwt_encode(s, array);
40
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40 if (ret < 0) {
41 fprintf(stderr, "ff_dwt_encode failed\n");
42 return 1;
43 }
44 40 ret = ff_dwt_decode(s, array);
45
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40 if (ret < 0) {
46 fprintf(stderr, "ff_dwt_encode failed\n");
47 return 1;
48 }
49
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2621480 for (j = 0; j<MAX_W * MAX_W; j++) {
50
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2621440 if (FFABS(array[j] - ref[j]) > max_diff) {
51 fprintf(stderr, "missmatch at %d (%d != %d) decomp:%d border %d %d %d %d\n",
52 j, array[j], ref[j],decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1]);
53 return 2;
54 }
55 2621440 err2 += (array[j] - ref[j]) * (array[j] - ref[j]);
56 2621440 array[j] = ref[j];
57 }
58 40 ff_dwt_destroy(s);
59
60 40 printf("%s, decomp:%2d border %3d %3d %3d %3d milli-err2:%9"PRId64"\n",
61 type == FF_DWT53 ? "5/3i" : "9/7i",
62 40 decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1],
63
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40 1000*err2 / ((border[0][1] - border[0][0])*(border[1][1] - border[1][0])));
64
65 40 return 0;
66 }
67
68 20 static int test_dwtf(float *array, float *ref, int border[2][2], int decomp_levels, float max_diff) {
69 int ret, j;
70 20 DWTContext s1={{{0}}}, *s= &s1;
71 20 double err2 = 0;
72
73 20 ret = ff_jpeg2000_dwt_init(s, border, decomp_levels, FF_DWT97);
74
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20 if (ret < 0) {
75 fprintf(stderr, "ff_jpeg2000_dwt_init failed\n");
76 return 1;
77 }
78 20 ret = ff_dwt_encode(s, array);
79
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20 if (ret < 0) {
80 fprintf(stderr, "ff_dwt_encode failed\n");
81 return 1;
82 }
83 20 ret = ff_dwt_decode(s, array);
84
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20 if (ret < 0) {
85 fprintf(stderr, "ff_dwt_encode failed\n");
86 return 1;
87 }
88
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1310740 for (j = 0; j<MAX_W * MAX_W; j++) {
89
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1310720 if (FFABS(array[j] - ref[j]) > max_diff) {
90 fprintf(stderr, "missmatch at %d (%f != %f) decomp:%d border %d %d %d %d\n",
91 j, array[j], ref[j],decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1]);
92 return 2;
93 }
94 1310720 err2 += (array[j] - ref[j]) * (array[j] - ref[j]);
95 1310720 array[j] = ref[j];
96 }
97 20 ff_dwt_destroy(s);
98
99 20 printf("9/7f, decomp:%2d border %3d %3d %3d %3d err2:%20.3f\n",
100 20 decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1],
101 20 err2 / ((border[0][1] - border[0][0])*(border[1][1] - border[1][0])));
102
103 20 return 0;
104 }
105
106 static int array[MAX_W * MAX_W];
107 static int ref [MAX_W * MAX_W];
108 static float arrayf[MAX_W * MAX_W];
109 static float reff [MAX_W * MAX_W];
110
111 1 int main(void) {
112 AVLFG prng;
113 int i,j;
114 int border[2][2];
115 int ret, decomp_levels;
116
117 1 av_lfg_init(&prng, 1);
118
119
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65537 for (i = 0; i<MAX_W * MAX_W; i++)
120 65536 arrayf[i] = reff[i] = array[i] = ref[i] = av_lfg_get(&prng) % 2048;
121
122
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101 for (i = 0; i < 100; i++) {
123
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500 for (j=0; j<4; j++)
124 400 border[j>>1][j&1] = av_lfg_get(&prng) % MAX_W;
125
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100 if (border[0][0] >= border[0][1] || border[1][0] >= border[1][1])
126 80 continue;
127 20 decomp_levels = av_lfg_get(&prng) % FF_DWT_MAX_DECLVLS;
128
129 20 ret = test_dwt(array, ref, border, decomp_levels, FF_DWT53, 0);
130
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20 if (ret)
131 return ret;
132
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20 ret = test_dwt(array, ref, border, decomp_levels, FF_DWT97_INT, FFMIN(7+5*decomp_levels, 15+3*decomp_levels));
133
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20 if (ret)
134 return ret;
135 20 ret = test_dwtf(arrayf, reff, border, decomp_levels, 0.05);
136
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20 if (ret)
137 return ret;
138 }
139
140 1 return 0;
141 }
142