FreeCalypso > hg > gsm-codec-lib

annotate efrtest/etsi-enc.c @ 478:936a08cc73ce

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doc/AMR-library-API: describe the decoder
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 19 May 2024 21:32:31 +0000
parents 51678b070c7a
children
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1 /*
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2 * gsmefr-etsi-enc is a test program for our EFR encoder: it reads raw
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3 * 16-bit PCM (matching ETSI's *.inp) as input and writes ETSI's *.cod
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4 * format as output, allowing our encoder to be tested with ETSI's
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5 * official test sequences.
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6 *
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7 * ETSI input and output files are read and written in LE byte order,
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8 * matching the official test sequences in ts_100725v050200p0.zip.
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9 */
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10
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11 #include <stdio.h>
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12 #include <stdint.h>
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13 #include <stdlib.h>
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14 #include <string.h>
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15 #include <strings.h>
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16 #include <unistd.h>
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17 #include "../libgsmefr/gsm_efr.h"
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18
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19 main(argc, argv)
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20 char **argv;
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21 {
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22 char *infname, *outfname;
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23 FILE *inf, *outf;
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24 struct EFR_encoder_state *state;
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25 int16_t pcm[160];
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26 uint8_t frame[EFR_RTP_FRAME_LEN], bits[250];
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27 int opt, dtx = 0, rc, sp, vad, big_endian = 0;
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28 extern int optind;
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29
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30 while ((opt = getopt(argc, argv, "bd")) != EOF) {
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31 switch (opt) {
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32 case 'b':
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33 big_endian = 1;
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34 continue;
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35 case 'd':
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36 dtx = 1;
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37 continue;
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38 default:
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39 usage:
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40 fprintf(stderr,
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41 "usage: %s [-b] [-d] input.inp output.cod\n",
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42 argv[0]);
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43 exit(1);
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44 }
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45 }
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46 if (argc != optind + 2)
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47 goto usage;
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48 infname = argv[optind];
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49 outfname = argv[optind+1];
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50
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51 inf = fopen(infname, "r");
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52 if (!inf) {
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53 perror(infname);
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54 exit(1);
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55 }
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56 outf = fopen(outfname, "w");
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57 if (!outf) {
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58 perror(outfname);
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59 exit(1);
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60 }
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61 state = EFR_encoder_create(dtx);
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62 if (!state) {
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63 perror("EFR_encoder_create()");
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64 exit(1);
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65 }
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66 for (;;) {
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67 rc = read_input(inf, pcm, infname, big_endian);
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68 if (!rc)
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69 break;
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70 EFR_encode_frame(state, pcm, frame, &sp, &vad);
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71 frame2bits(frame, bits);
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72 bits[248] = vad;
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73 bits[249] = sp;
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74 emit_output(outf, bits + 4, 246, big_endian);
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75 }
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76 fclose(outf);
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77 exit(0);
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78 }