FreeCalypso > hg > gsm-codec-lib
view efrtest/decode.c @ 480:332397bc80aa
doc/AMR-library-API: document public const data items
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 19 May 2024 23:18:17 +0000 |
parents | d5bab777865a |
children |
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/* * This file is the main module for gsmefr-decode utility. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include "../libgsmefr/gsm_efr.h" #include "../libtest/binreader.h" #include "../libtest/wavwriter.h" #include "../libtest/pcmwrite.h" main(argc, argv) char **argv; { FILE *binf; void *wav; struct EFR_decoder_state *state; uint8_t frame[BINFILE_MAX_FRAME]; int16_t pcm[160]; int rc, bfi, taf; if (argc != 3) { fprintf(stderr, "usage: %s input.gsmx 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); } state = EFR_decoder_create(); if (!state) { perror("EFR_decoder_create()"); 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) == 0xC0) bfi = 0; else { fprintf(stderr, "error: %s is not in EFR codec format\n", argv[1]); exit(1); } if (bfi) EFR_decode_bfi_nodata(state, taf, pcm); else EFR_decode_frame(state, frame, 0, 0, pcm); write_pcm_to_wav(wav, pcm); } wav_write_close(wav); exit(0); }