xref: /third_party/ffmpeg/tests/checkasm/af_afir.c (revision cabdff1a) 
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 "config.h"
20
21#include <float.h>
22#include <stdint.h>
23
24#include "libavfilter/af_afirdsp.h"
25#include "libavutil/internal.h"
26#include "libavutil/mem_internal.h"
27#include "checkasm.h"
28
29#define LEN 256
30
31#define randomize_buffer(buf)                 \
32do {                                          \
33    int i;                                    \
34    double bmg[2], stddev = 10.0, mean = 0.0; \
35                                              \
36    for (i = 0; i < LEN*2+8; i += 2) {        \
37        av_bmg_get(&checkasm_lfg, bmg);       \
38        buf[i]     = bmg[0] * stddev + mean;  \
39        buf[i + 1] = bmg[1] * stddev + mean;  \
40    }                                         \
41} while(0);
42
43static void test_fcmul_add(const float *src0, const float *src1, const float *src2)
44{
45    LOCAL_ALIGNED_32(float, cdst, [LEN*2+8]);
46    LOCAL_ALIGNED_32(float, odst, [LEN*2+8]);
47    int i;
48
49    declare_func(void, float *sum, const float *t, const float *c,
50                 ptrdiff_t len);
51
52    memcpy(cdst, src0, (LEN*2+8) * sizeof(float));
53    memcpy(odst, src0, (LEN*2+8) * sizeof(float));
54    call_ref(cdst, src1, src2, LEN);
55    call_new(odst, src1, src2, LEN);
56    for (i = 0; i <= LEN*2; i++) {
57        int idx = i & ~1;
58        float cre = src2[idx];
59        float cim = src2[idx + 1];
60        float tre = src1[idx];
61        float tim = src1[idx + 1];
62        double t = fabs(src0[i]) +
63                   fabs(tre) + fabs(tim) + fabs(cre) + fabs(cim) +
64                   fabs(tre * cre) + fabs(tim * cim) +
65                   fabs(tre * cim) + fabs(tim * cre) +
66                   fabs(tre * cre - tim * cim) +
67                   fabs(tre * cim + tim * cre) +
68                   fabs(cdst[i]) + 1.0;
69        if (!float_near_abs_eps(cdst[i], odst[i], t * 2 * FLT_EPSILON)) {
70            fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
71                    i, cdst[i], odst[i], cdst[i] - odst[i]);
72            fail();
73            break;
74        }
75    }
76    memcpy(odst, src0, (LEN*2+8) * sizeof(float));
77    bench_new(odst, src1, src2, LEN);
78}
79
80void checkasm_check_afir(void)
81{
82    LOCAL_ALIGNED_32(float, src0, [LEN*2+8]);
83    LOCAL_ALIGNED_32(float, src1, [LEN*2+8]);
84    LOCAL_ALIGNED_32(float, src2, [LEN*2+8]);
85    AudioFIRDSPContext fir = { 0 };
86
87    ff_afir_init(&fir);
88
89    randomize_buffer(src0);
90    randomize_buffer(src1);
91    randomize_buffer(src2);
92
93    if (check_func(fir.fcmul_add, "fcmul_add"))
94        test_fcmul_add(src0, src1, src2);
95    report("fcmul_add");
96}
97