1 /* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file.
4 */
5
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <assert.h>
9 #include <time.h>
10 #include <memory.h>
11
12 #include "crossover.h"
13 #include "dsp_test_util.h"
14 #include "dsp_util.h"
15 #include "raw.h"
16
17 #ifndef min
18 #define min(a, b) \
19 ({ \
20 __typeof__(a) _a = (a); \
21 __typeof__(b) _b = (b); \
22 _a < _b ? _a : _b; \
23 })
24 #endif
25
tp_diff(struct timespec * tp2,struct timespec * tp1)26 static double tp_diff(struct timespec *tp2, struct timespec *tp1)
27 {
28 return (tp2->tv_sec - tp1->tv_sec) +
29 (tp2->tv_nsec - tp1->tv_nsec) * 1e-9;
30 }
31
process(struct crossover * xo,int count,float * data0,float * data1,float * data2)32 void process(struct crossover *xo, int count, float *data0, float *data1,
33 float *data2)
34 {
35 int start;
36 for (start = 0; start < count; start += 2048)
37 crossover_process(xo, min(2048, count - start), data0 + start,
38 data1 + start, data2 + start);
39 }
40
main(int argc,char ** argv)41 int main(int argc, char **argv)
42 {
43 size_t frames;
44 float *data0, *data1, *data2;
45 double NQ = 44100 / 2;
46 struct timespec tp1, tp2;
47 struct crossover xo;
48
49 if (argc != 3 && argc != 6) {
50 printf("Usage: crossover_test input.raw output.raw "
51 "[low.raw mid.raw high.raw]\n");
52 return 1;
53 }
54
55 dsp_enable_flush_denormal_to_zero();
56 dsp_util_clear_fp_exceptions();
57
58 data0 = read_raw(argv[1], &frames);
59 data1 = (float *)malloc(sizeof(float) * frames * 2);
60 data2 = (float *)malloc(sizeof(float) * frames * 2);
61
62 crossover_init(&xo, 400 / NQ, 4000 / NQ);
63 clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp1);
64 process(&xo, frames, data0, data1, data2);
65 clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp2);
66 printf("processing takes %g seconds for %zu samples\n",
67 tp_diff(&tp2, &tp1), frames);
68
69 crossover_init(&xo, 400 / NQ, 4000 / NQ);
70 clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp1);
71 process(&xo, frames, data0 + frames, data1 + frames, data2 + frames);
72 clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp2);
73 printf("processing takes %g seconds for %zu samples\n",
74 tp_diff(&tp2, &tp1), frames);
75
76 if (argc == 6) {
77 write_raw(argv[3], data0, frames);
78 write_raw(argv[4], data1, frames);
79 write_raw(argv[5], data2, frames);
80 }
81
82 int i;
83 for (i = 0; i < frames * 2; i++)
84 data0[i] += data1[i] + data2[i];
85 write_raw(argv[2], data0, frames);
86
87 free(data0);
88 free(data1);
89 free(data2);
90
91 dsp_util_print_fp_exceptions();
92 return 0;
93 }
94