FreeCalypso > hg > gsm-codec-lib
view amrconv/cod-parse.c @ 282:9ee8ad3d4d30
frtest: rm gsmfr-hand-test and gsmfr-max-out utils
These hack programs were never properly documented and were written
only as part of a debug chase, in pursuit of a bug that ultimately
turned out to be in our then-hacky patch to osmo-bts-sysmo,
before beginning of proper patches in Osmocom. These hack programs
need to be dropped from the present sw package because they depend
on old libgsm, and we are eliminating that dependency.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 14 Apr 2024 05:44:47 +0000 |
parents | 0beafaa0623f |
children |
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/* * This program reads an ETSI/3GPP AMR *.cod file and parses it into * a human-readable form. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "amr_defs.h" extern char *amr_mode_names[16]; extern unsigned amr_bit_lengths[9]; static char *type_names[4] = { "Speech", "SID_FIRST", "SID_UPDATE", "NO_DATA" }; main(argc, argv) char **argv; { char *infname; FILE *inf; int big_endian; unsigned frame_no, type, mode; uint8_t input_bits[COD_FORMAT_NWORDS]; uint16_t params[MAX_PRM_SIZE]; int rc; if (argc == 2 && argv[1][0] != '-') { big_endian = 0; infname = argv[1]; } else if (argc == 3 && !strcmp(argv[1], "-b")) { big_endian = 1; infname = argv[2]; } else { fprintf(stderr, "usage: %s [-b] file.cod\n", argv[0]); exit(1); } inf = fopen(infname, "r"); if (!inf) { perror(infname); exit(1); } for (frame_no = 0; ; frame_no++) { rc = read_cod_bits(inf, big_endian, input_bits, infname); if (!rc) break; type = input_bits[0]; mode = input_bits[245]; printf("#%u: Type=%u Mode=%u", frame_no, type, mode); if (type == TX_NO_DATA) { printf(" (NO_DATA)\n"); continue; } if (type > TX_NO_DATA || mode > MR122) { printf(" (unsupported)\n"); continue; } printf(" (%s %s)\n", amr_mode_names[mode], type_names[type]); switch (type) { case TX_SPEECH_GOOD: preen_frame_bits(input_bits+1, amr_bit_lengths[mode], infname, frame_no); reassemble_amr_params(input_bits+1, params, mode); dump_amr_params(params, mode); break; case TX_SID_FIRST: case TX_SID_UPDATE: preen_frame_bits(input_bits+1, AMR_NBITS_SID, infname, frame_no); reassemble_amr_params(input_bits+1, params, MRDTX); dump_amr_params(params, MRDTX); break; } } exit(0); }