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/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "dsp_test_util.h"
#include "dsp_util.h"
#include "dcblock.h"
#include "raw.h"
#ifndef min
#define min(a, b) \
({ \
__typeof__(a) _a = (a); \
__typeof__(b) _b = (b); \
_a < _b ? _a : _b; \
})
#endif
static double tp_diff(struct timespec *tp2, struct timespec *tp1)
{
return (tp2->tv_sec - tp1->tv_sec) +
(tp2->tv_nsec - tp1->tv_nsec) * 1e-9;
}
/* Processes a buffer of data chunk by chunk using the filter */
static void process(struct dcblock *dcblock, float *data, int count)
{
int start;
for (start = 0; start < count; start += 128)
dcblock_process(dcblock, data + start, min(128, count - start));
}
/* Runs the filters on an input file */
static void test_file(const char *input_filename, const char *output_filename)
{
size_t frames;
struct timespec tp1, tp2;
struct dcblock *dcblockl;
struct dcblock *dcblockr;
float *data = read_raw(input_filename, &frames);
dcblockl = dcblock_new(0.995, 48000);
dcblockr = dcblock_new(0.995, 48000);
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp1);
process(dcblockl, data, frames);
process(dcblockr, data + frames, frames);
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp2);
printf("processing takes %g seconds for %zu samples\n",
tp_diff(&tp2, &tp1), frames);
dcblock_free(dcblockl);
dcblock_free(dcblockr);
write_raw(output_filename, data, frames);
free(data);
}
int main(int argc, char **argv)
{
dsp_enable_flush_denormal_to_zero();
if (dsp_util_has_denormal())
printf("denormal still supported?\n");
else
printf("denormal disabled\n");
dsp_util_clear_fp_exceptions();
if (argc == 3)
test_file(argv[1], argv[2]);
else
printf("Usage: dcblock_test input.raw output.raw\n");
dsp_util_print_fp_exceptions();
return 0;
}
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