FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/tests/jpeg2000dwt.c
Date: 2022-07-04 19:11:22
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 <inttypes.h>
24 #include <stdio.h>
25
26 #include "libavutil/common.h"
27
28 #include "libavcodec/jpeg2000dwt.c"
29
30 #include "libavutil/lfg.h"
31
32 #define MAX_W 256
33
34 40 static int test_dwt(int *array, int *ref, int border[2][2], int decomp_levels, int type, int max_diff) {
35 int ret, j;
36 40 DWTContext s1={{{0}}}, *s= &s1;
37 40 int64_t err2 = 0;
38
39 40 ret = ff_jpeg2000_dwt_init(s, border, decomp_levels, type);
40
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40 if (ret < 0) {
41 fprintf(stderr, "ff_jpeg2000_dwt_init failed\n");
42 return 1;
43 }
44 40 ret = ff_dwt_encode(s, array);
45
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40 if (ret < 0) {
46 fprintf(stderr, "ff_dwt_encode failed\n");
47 return 1;
48 }
49 40 ret = ff_dwt_decode(s, array);
50
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40 if (ret < 0) {
51 fprintf(stderr, "ff_dwt_encode failed\n");
52 return 1;
53 }
54
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2621480 for (j = 0; j<MAX_W * MAX_W; j++) {
55
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2621440 if (FFABS(array[j] - ref[j]) > max_diff) {
56 fprintf(stderr, "missmatch at %d (%d != %d) decomp:%d border %d %d %d %d\n",
57 j, array[j], ref[j],decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1]);
58 return 2;
59 }
60 2621440 err2 += (array[j] - ref[j]) * (array[j] - ref[j]);
61 2621440 array[j] = ref[j];
62 }
63 40 ff_dwt_destroy(s);
64
65 40 printf("%s, decomp:%2d border %3d %3d %3d %3d milli-err2:%9"PRId64"\n",
66 type == FF_DWT53 ? "5/3i" : "9/7i",
67 40 decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1],
68
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40 1000*err2 / ((border[0][1] - border[0][0])*(border[1][1] - border[1][0])));
69
70 40 return 0;
71 }
72
73 20 static int test_dwtf(float *array, float *ref, int border[2][2], int decomp_levels, float max_diff) {
74 int ret, j;
75 20 DWTContext s1={{{0}}}, *s= &s1;
76 20 double err2 = 0;
77
78 20 ret = ff_jpeg2000_dwt_init(s, border, decomp_levels, FF_DWT97);
79
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20 if (ret < 0) {
80 fprintf(stderr, "ff_jpeg2000_dwt_init failed\n");
81 return 1;
82 }
83 20 ret = ff_dwt_encode(s, array);
84
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20 if (ret < 0) {
85 fprintf(stderr, "ff_dwt_encode failed\n");
86 return 1;
87 }
88 20 ret = ff_dwt_decode(s, array);
89
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20 if (ret < 0) {
90 fprintf(stderr, "ff_dwt_encode failed\n");
91 return 1;
92 }
93
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1310740 for (j = 0; j<MAX_W * MAX_W; j++) {
94
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1310720 if (FFABS(array[j] - ref[j]) > max_diff) {
95 fprintf(stderr, "missmatch at %d (%f != %f) decomp:%d border %d %d %d %d\n",
96 j, array[j], ref[j],decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1]);
97 return 2;
98 }
99 1310720 err2 += (array[j] - ref[j]) * (array[j] - ref[j]);
100 1310720 array[j] = ref[j];
101 }
102 20 ff_dwt_destroy(s);
103
104 20 printf("9/7f, decomp:%2d border %3d %3d %3d %3d err2:%20.3f\n",
105 20 decomp_levels, border[0][0], border[0][1], border[1][0], border[1][1],
106 20 err2 / ((border[0][1] - border[0][0])*(border[1][1] - border[1][0])));
107
108 20 return 0;
109 }
110
111 static int array[MAX_W * MAX_W];
112 static int ref [MAX_W * MAX_W];
113 static float arrayf[MAX_W * MAX_W];
114 static float reff [MAX_W * MAX_W];
115
116 1 int main(void) {
117 AVLFG prng;
118 int i,j;
119 int border[2][2];
120 int ret, decomp_levels;
121
122 1 av_lfg_init(&prng, 1);
123
124
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65537 for (i = 0; i<MAX_W * MAX_W; i++)
125 65536 arrayf[i] = reff[i] = array[i] = ref[i] = av_lfg_get(&prng) % 2048;
126
127
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101 for (i = 0; i < 100; i++) {
128
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500 for (j=0; j<4; j++)
129 400 border[j>>1][j&1] = av_lfg_get(&prng) % MAX_W;
130
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100 if (border[0][0] >= border[0][1] || border[1][0] >= border[1][1])
131 80 continue;
132 20 decomp_levels = av_lfg_get(&prng) % FF_DWT_MAX_DECLVLS;
133
134 20 ret = test_dwt(array, ref, border, decomp_levels, FF_DWT53, 0);
135
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20 if (ret)
136 return ret;
137
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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));
138
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20 if (ret)
139 return ret;
140 20 ret = test_dwtf(arrayf, reff, border, decomp_levels, 0.05);
141
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20 if (ret)
142 return ret;
143 }
144
145 1 return 0;
146 }
147