annotate efrtest/cod-parse.c @ 478:936a08cc73ce

doc/AMR-library-API: describe the decoder
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 19 May 2024 21:32:31 +0000
parents 46a6e6b6841a
children
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1 /*
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2 * This program reads an EFR *.cod file in ETSI test sequence format
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3 * (output from either ETSI's official coder program or our gsmefr-etsi-enc)
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4 * and converts it into human-readable format, similar to what one would get
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5 * from our gsmrec-dump utility.
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6 */
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7
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8 #include <stdio.h>
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9 #include <stdint.h>
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10 #include <stdlib.h>
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11 #include <string.h>
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12 #include <strings.h>
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13 #include "../libgsmefr/gsm_efr.h"
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14 #include "etsi.h"
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15
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16 main(argc, argv)
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17 char **argv;
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18 {
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19 char *infname;
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20 FILE *inf;
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21 int big_endian;
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22 unsigned frame_no;
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23 uint8_t input_bits[ETSI_ENC_NWORDS], frame[EFR_RTP_FRAME_LEN];
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24 int16_t params[EFR_NUM_PARAMS];
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25 int rc, i, j, n;
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26
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27 if (argc == 2 && argv[1][0] != '-') {
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28 big_endian = 0;
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29 infname = argv[1];
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30 } else if (argc == 3 && !strcmp(argv[1], "-b")) {
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31 big_endian = 1;
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32 infname = argv[2];
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33 } else {
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34 fprintf(stderr, "usage: %s [-b] file.cod\n", argv[0]);
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35 exit(1);
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36 }
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37 inf = fopen(infname, "r");
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38 if (!inf) {
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39 perror(infname);
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40 exit(1);
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41 }
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42 for (frame_no = 0; ; frame_no++) {
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43 rc = read_etsi_bits(inf, big_endian, input_bits,
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44 ETSI_ENC_NWORDS, infname);
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45 if (!rc)
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46 break;
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47 bits2frame(input_bits, frame, infname, frame_no);
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48 printf("#%u: VAD=%u SP=%u SID=%d LPC", frame_no,
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49 input_bits[244], input_bits[245],
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50 EFR_sid_classify(frame));
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51 EFR_frame2params(frame, params);
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52 n = 0;
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53 for (i = 0; i < 5; i++)
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54 printf(" %d", params[n++]);
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55 putchar('\n');
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56 for (i = 0; i < 4; i++) {
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57 putchar(' ');
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58 for (j = 0; j < 13; j++)
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59 printf(" %d", params[n++]);
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60 putchar('\n');
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61 }
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62 }
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63 exit(0);
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64 }