FreeCalypso > hg > gsm-codec-lib
view frtest/decode.c @ 181:3a0ee08a3b9d
doc/EFR-rationale: typo fix
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 02 Jan 2023 20:09:07 +0000 |
parents | b9a842775f40 |
children | 8d3cfa65a6c2 |
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/* * This file is the main module for gsmfr-decode utility. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <gsm.h> #include "../libgsmfrp/gsm_fr_preproc.h" #include "../libtest/binreader.h" #include "../libtest/wavwriter.h" #include "../libtest/pcmwrite.h" main(argc, argv) char **argv; { FILE *binf; void *wav; gsm dec_state; struct gsmfr_preproc_state *pp_state; uint8_t frame[BINFILE_MAX_FRAME]; int16_t pcm[160]; int rc, bfi, taf; if (argc != 3) { fprintf(stderr, "usage: %s input.gsm output.wav\n", argv[0]); exit(1); } binf = fopen(argv[1], "r"); if (!binf) { perror(argv[1]); exit(1); } wav = wav_write_open(argv[2], 8000, 16, 1); if (!wav) { perror(argv[2]); exit(1); } dec_state = gsm_create(); if (!dec_state) { fprintf(stderr, "gsm_create() failed!\n"); exit(1); } pp_state = gsmfr_preproc_create(); if (!pp_state) { fprintf(stderr, "gsmfr_preproc_create() failed!\n"); exit(1); } for (;;) { rc = binfile_read_frame(binf, frame); if (rc < 0) { fprintf(stderr, "error: garbage in %s\n", argv[1]); exit(1); } if (!rc) break; if (frame[0] == 0xBF) { bfi = 1; taf = frame[1] & 1; } else if ((frame[0] & 0xF0) == 0xD0) bfi = 0; else { fprintf(stderr, "error: %s is not in FR codec format\n", argv[1]); exit(1); } if (bfi) gsmfr_preproc_bfi(pp_state, taf, frame); else gsmfr_preproc_good_frame(pp_state, frame); gsm_decode(dec_state, frame, pcm); write_pcm_to_wav(wav, pcm); } wav_write_close(wav); exit(0); }