FreeCalypso > hg > gsm-codec-lib
view frtest/cod2std.c @ 287:f00925b533b7
gsmfr-encode: convert to libgsmfr2
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 14 Apr 2024 06:16:47 +0000 |
parents | 25649b3a83e9 |
children |
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/* * This program reads an FR codec parameters file in ETSI *.cod test sequence * format and converts it into classic libgsm format. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "../libgsmfr2/tw_gsmfr.h" static void bytes_to_params(bytes, params, big_endian) uint8_t *bytes; int16_t *params; { uint8_t *sp; unsigned n; uint16_t val; sp = bytes; for (n = 0; n < 76; n++) { if (big_endian) val = ((uint16_t) sp[0] << 8) | ((uint16_t) sp[1]); else val = ((uint16_t) sp[1] << 8) | ((uint16_t) sp[0]); params[n] = val; sp += 2; } } main(argc, argv) char **argv; { char *infname, *outfname; FILE *inf, *outf; int big_endian; unsigned frame_no; uint8_t input_bytes[76*2], frame[33]; int16_t params[76]; int cc; if (argc == 3 && argv[1][0] != '-') { big_endian = 0; infname = argv[1]; outfname = argv[2]; } else if (argc == 4 && !strcmp(argv[1], "-b")) { big_endian = 1; infname = argv[2]; outfname = argv[3]; } else { fprintf(stderr, "usage: %s [-b] input.cod output.gsm\n", argv[0]); exit(1); } inf = fopen(infname, "r"); if (!inf) { perror(infname); exit(1); } outf = fopen(outfname, "w"); if (!outf) { perror(outfname); exit(1); } for (frame_no = 0; ; frame_no++) { cc = fread(input_bytes, 2, 76, inf); if (cc == 0) break; if (cc != 76) { fprintf(stderr, "error: short read from %s\n", infname); exit(1); } bytes_to_params(input_bytes, params, big_endian); gsmfr_pack_from_array(params, frame); fwrite(frame, 1, sizeof frame, outf); } fclose(outf); exit(0); }