FreeCalypso > hg > vband-misc

annotate pcmu2efr/pcmu-input.c @ 26:1794bf0fbcf7

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pcmu2efr: emit full PCMU input
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 12 May 2024 04:48:36 +0000
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1794bf0fbcf7 pcmu2efr: emit full PCMU input
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
1794bf0fbcf7 pcmu2efr: emit full PCMU input
Mychaela Falconia <falcon@freecalypso.org>
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2 * This program emits the full sequence (3 EHFs and 2 copies of seqsyncu)
1794bf0fbcf7 pcmu2efr: emit full PCMU input
Mychaela Falconia <falcon@freecalypso.org>
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3 * that needs to be fed to TRAU DL input from G.711 PCMU side to perform
1794bf0fbcf7 pcmu2efr: emit full PCMU input
Mychaela Falconia <falcon@freecalypso.org>
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4 * the test of reversing the EFR variant used and finding frame sync.
1794bf0fbcf7 pcmu2efr: emit full PCMU input
Mychaela Falconia <falcon@freecalypso.org>
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5 */
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6
1794bf0fbcf7 pcmu2efr: emit full PCMU input
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7 #include <stdio.h>
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8 #include <stdint.h>
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9 #include <stdlib.h>
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10 #include <string.h>
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11 #include <strings.h>
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12
1794bf0fbcf7 pcmu2efr: emit full PCMU input
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13 extern const uint8_t seqsyncu_last_frame[160];
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14
1794bf0fbcf7 pcmu2efr: emit full PCMU input
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15 main(argc, argv)
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16 char **argv;
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17 {
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18 FILE *outf;
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19 uint8_t ehf[160];
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20
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21 if (argc != 2) {
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22 fprintf(stderr, "usage: %s pcmu-out-file\n", argv[0]);
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23 exit(1);
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24 }
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25 outf = fopen(argv[1], "w");
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26 if (!outf) {
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27 perror(argv[1]);
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28 exit(1);
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29 }
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30 memset(ehf, 0xFE, 160);
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31 fwrite(ehf, 1, 160, outf);
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32 fwrite(ehf, 1, 160, outf);
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33 fwrite(ehf, 1, 160, outf);
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34 fwrite(seqsyncu_last_frame, 1, 160, outf);
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35 fwrite(seqsyncu_last_frame, 1, 160, outf);
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Mychaela Falconia <falcon@freecalypso.org>
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36 fclose(outf);
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37 exit(0);
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38 }