55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
// Copyright 2024-2025 XMOS LIMITED.
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// This Software is subject to the terms of the XMOS Public Licence: Version 1.
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include "dsp/adsp.h"
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FILE * _fopen(char * fname, char* mode) {
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FILE * fp = fopen(fname, mode);
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if (fp == NULL)
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{
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printf("Error opening a file\n");
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exit(1);
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}
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return fp;
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}
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int main()
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{
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int32_t DWORD_ALIGNED taps_buf[40] = {0};
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int32_t state[64] = {0};
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left_shift_t lsh[8] = {0};
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FILE * in = _fopen("../sig_48k.bin", "rb");
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FILE * out = _fopen("sig_out.bin", "wb");
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FILE * coeffs = _fopen("coeffs.bin", "rb");
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fseek(in, 0, SEEK_END);
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int in_len = ftell(in) / sizeof(int32_t);
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fseek(in, 0, SEEK_SET);
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for (unsigned n = 0; n < 8; n++){
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fread(&taps_buf[n * 5], sizeof(int32_t), 5, coeffs);
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fread(&lsh[n], sizeof(int32_t), 1, coeffs);
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//printf("%ld %ld %ld %ld %ld %d\n", taps_buf[n * 5], taps_buf[n * 5 + 1], taps_buf[n * 5 + 2], taps_buf[n * 5 + 3], taps_buf[n * 5 + 4], lsh[n]);
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}
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fclose(coeffs);
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for (unsigned i = 0; i < in_len; i++)
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{
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int32_t samp = 0, samp_out = 0;
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fread(&samp, sizeof(int32_t), 1, in);
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//printf("%ld ", samp);
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samp_out = adsp_cascaded_biquads_8b(samp, taps_buf, state, lsh);
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//printf("%ld ", samp_out);
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fwrite(&samp_out, sizeof(int32_t), 1, out);
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}
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fclose(in);
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fclose(out);
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return 0;
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}
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