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annotate pcmu2efr/gen-efr.c @ 21:3eb407b08b4c

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pcmu2efr: confirm that we got 280 distinct outputs so far
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 12 May 2024 03:15:23 +0000
parents 528eef871e23
children f4420403219a
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1 /*
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2 * The code in this module takes linear_inputs[][] from gen160.c
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3 * and generates standard EFR-encoded frames.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include <gsm_efr.h>
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10
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11 extern uint16_t linear_inputs[160][160];
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13 uint8_t standard_efr[160][31];
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14
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15 void
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16 generate_std_efr(void)
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17 {
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18 struct EFR_encoder_state *st;
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19 unsigned m;
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20
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21 st = EFR_encoder_create(0);
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22 if (!st) {
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23 fprintf(stderr, "error: EFR_encoder_create() failed\n");
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24 exit(1);
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25 }
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26 for (m = 0; m < 160; m++) {
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27 EFR_encoder_reset(st, 0);
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28 EFR_encode_frame(st, (const int16_t *) linear_inputs[m],
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29 standard_efr[m], (int *) 0, (int *) 0);
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30 }
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31 free(st);
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32 }