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comparison trau-ul-prep/efrdec2tsrc.c @ 22:8957383370c5

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trau-ul-prep: implement efrdec2tsrc
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 23 Jun 2024 22:24:39 +0000
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21:453461ad9c15 22:8957383370c5
1 /*
2 * This program reads an EFR *.dec file in ETSI test sequence format
3 * and converts it into ASCII source for TRAU-UL construction.
4 */
5
6 #include <stdio.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include <string.h>
10 #include <strings.h>
11 #include <unistd.h>
12 #include <gsm_efr.h>
13 #include "etsi.h"
14
15 main(argc, argv)
16 char **argv;
17 {
18 char *infname, *outfname;
19 FILE *inf, *outf;
20 int big_endian = 0;
21 unsigned frame_no;
22 uint8_t input_bits[ETSI_DEC_NWORDS], frame[EFR_RTP_FRAME_LEN];
23 int16_t params[EFR_NUM_PARAMS];
24 int rc, i, j, n;
25 extern int optind;
26
27 while ((rc = getopt(argc, argv, "b")) != EOF) {
28 switch (rc) {
29 case 'b':
30 big_endian = 1;
31 continue;
32 default:
33 usage:
34 fprintf(stderr,
35 "usage: %s [-b] input.dec [output.tsrc]\n",
36 argv[0]);
37 exit(1);
38 }
39 }
40 if (argc < optind + 1 || argc > optind + 2)
41 goto usage;
42 infname = argv[optind];
43 outfname = argv[optind+1];
44
45 inf = fopen(infname, "r");
46 if (!inf) {
47 perror(infname);
48 exit(1);
49 }
50 if (outfname) {
51 outf = fopen(outfname, "w");
52 if (!outf) {
53 perror(outfname);
54 exit(1);
55 }
56 } else
57 outf = stdout;
58 for (frame_no = 0; ; frame_no++) {
59 rc = read_etsi_bits(inf, big_endian, input_bits,
60 ETSI_DEC_NWORDS, infname);
61 if (!rc)
62 break;
63 bits2frame(input_bits + 1, frame, infname, frame_no);
64 fprintf(outf, "# input frame %u\nFrame_EFR {\n", frame_no);
65 if (input_bits[246])
66 fputs("\t# TAF position\n", outf);
67 fprintf(outf, "\tBFI %u\n", input_bits[0]);
68 EFR_frame2params(frame, params);
69 n = 0;
70 fputs("\tLPC", outf);
71 for (i = 0; i < 5; i++)
72 fprintf(outf, " %d", params[n++]);
73 putc('\n', outf);
74 for (i = 0; i < 4; i++) {
75 fputs("\tsf", outf);
76 for (j = 0; j < 13; j++)
77 fprintf(outf, " %d", params[n++]);
78 putc('\n', outf);
79 }
80 fprintf(outf, "\tSID %u\n", input_bits[245]);
81 fputs("}\n\n", outf);
82 }
83 exit(0);
84 }