FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/opusdsp.c
Date: 2026-08-30 18:45:47
Exec Total Coverage
Lines: 41 43 95.3%
Functions: 3 3 100.0%
Branches: 19 58 32.8%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19 #include <string.h>
20
21 #include "libavutil/mem_internal.h"
22
23 #include "libavcodec/opus/dsp.h"
24 #include "libavcodec/opus/tab.h"
25
26 #include "checkasm.h"
27
28 #define randomize_float(buf, len) \
29 do { \
30 for (int i = 0; i < len; i++) { \
31 float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f; \
32 buf[i] = f; \
33 } \
34 } while (0)
35
36 #define EPS 0.005
37 #define MAX_SIZE (960)
38
39 /* period is between 15 and 1022, inclusive */
40 6 static void test_postfilter(int period)
41 {
42 6 LOCAL_ALIGNED(16, float, data0, [MAX_SIZE + 1024]);
43 6 LOCAL_ALIGNED(16, float, data1, [MAX_SIZE + 1024]);
44
45 /* This filter can explode very easily, so use a tapset from the codec.
46 * In the codec these are usually multiplied by at least 0.09375f,
47 * so its outside the largest filter value, but the filter is still stable
48 * so use it. */
49 6 float gains[3] = { 0.3066406250f, 0.2170410156f, 0.1296386719f };
50
51 /* The codec will always call with an offset which is aligned once
52 * (period + 2) is subtracted, but here we have to align it ourselves. */
53 6 int offset = FFALIGN(period + 2, 4);
54
55 6 declare_func(void, float *data, int period, float *gains, int len);
56
57
2/2
✓ Branch 1 taken 11904 times.
✓ Branch 2 taken 6 times.
 11910 randomize_float(data0, MAX_SIZE + 1024);
58 6 memcpy(data1, data0, (MAX_SIZE + 1024)*sizeof(float));
59
60
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 6 times.
 6 call_ref(data0 + offset, period, gains, MAX_SIZE);
61 6 call_new(data1 + offset, period, gains, MAX_SIZE);
62
63
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 6 times.
 6 if (!float_near_abs_eps_array(data0 + offset, data1 + offset, EPS, MAX_SIZE))
64 ✗ fail();
65
1/18
✗ Branch 1 not taken.
✓ Branch 2 taken 6 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 41 not taken.
✗ Branch 42 not taken.
✗ Branch 43 not taken.
✗ Branch 44 not taken.
✗ Branch 45 not taken.
✗ Branch 46 not taken.
✗ Branch 47 not taken.
✗ Branch 48 not taken.
✗ Branch 51 not taken.
✗ Branch 52 not taken.
✗ Branch 54 not taken.
✗ Branch 55 not taken.
✗ Branch 59 not taken.
✗ Branch 60 not taken.
 6 bench_new(data1 + offset, period, gains, MAX_SIZE);
66 6 }
67
68 2 static void test_deemphasis(void)
69 {
70 2 LOCAL_ALIGNED(16, float, src, [FFALIGN(MAX_SIZE, 4)]);
71 2 LOCAL_ALIGNED(16, float, dst0, [FFALIGN(MAX_SIZE, 4)]);
72 2 LOCAL_ALIGNED(16, float, dst1, [FFALIGN(MAX_SIZE, 4)]);
73 2 float coeff0 = (float)rnd() / (UINT_MAX >> 5) - 16.0f, coeff1 = coeff0;
74
75 2 declare_func_float(float, float *out, float *in, float coeff, const float *weights, int len);
76
77
2/2
✓ Branch 1 taken 1920 times.
✓ Branch 2 taken 2 times.
 1922 randomize_float(src, MAX_SIZE);
78
79
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
 2 coeff0 = call_ref(dst0, src, coeff0, ff_opus_deemph_weights, MAX_SIZE);
80 2 coeff1 = call_new(dst1, src, coeff1, ff_opus_deemph_weights, MAX_SIZE);
81
82
2/4
✓ Branch 1 taken 2 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✓ Branch 4 taken 2 times.
 4 if (!float_near_abs_eps(coeff0, coeff1, EPS) ||
83 2 !float_near_abs_eps_array(dst0, dst1, EPS, MAX_SIZE))
84 ✗ fail();
85
1/18
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 41 not taken.
✗ Branch 42 not taken.
✗ Branch 43 not taken.
✗ Branch 44 not taken.
✗ Branch 45 not taken.
✗ Branch 46 not taken.
✗ Branch 47 not taken.
✗ Branch 48 not taken.
✗ Branch 51 not taken.
✗ Branch 52 not taken.
✗ Branch 54 not taken.
✗ Branch 55 not taken.
✗ Branch 59 not taken.
✗ Branch 60 not taken.
 2 bench_new(dst1, src, coeff1, ff_opus_deemph_weights, MAX_SIZE);
86 2 }
87
88 14 void checkasm_check_opusdsp(void)
89 {
90 OpusDSP ctx;
91 14 ff_opus_dsp_init(&ctx);
92
93
2/2
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 12 times.
 14 if (check_func(ctx.postfilter, "postfilter_15"))
94 2 test_postfilter(15);
95 14 report("postfilter_15");
96
97
2/2
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 12 times.
 14 if (check_func(ctx.postfilter, "postfilter_512"))
98 2 test_postfilter(512);
99 14 report("postfilter_512");
100
101
2/2
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 12 times.
 14 if (check_func(ctx.postfilter, "postfilter_1022"))
102 2 test_postfilter(1022);
103 14 report("postfilter_1022");
104
105
2/2
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 12 times.
 14 if (check_func(ctx.deemphasis, "deemphasis"))
106 2 test_deemphasis();
107 14 report("deemphasis");
108 14 }
109