FreeCalypso > hg > gsm-codec-lib
view miscutil/raw2wav.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 | c1dc094f0821 |
children |
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/* * This program reads a 16-bit linear PCM speech recording in raw format * (either BE or LE) and converts it into WAV container format. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "../libtest/wavwriter.h" static void swap_bytes(bytes, cc) uint8_t *bytes; unsigned cc; { uint8_t *dp, *endp; int t; dp = bytes; endp = bytes + cc; while (dp < endp) { t = dp[0]; dp[0] = dp[1]; dp[1] = t; dp += 2; } } main(argc, argv) char **argv; { int big_endian; FILE *binf; void *wav; uint8_t bytes[320]; int cc; if (argc != 4) { usage: fprintf(stderr, "usage: %s be|le input.raw output.wav\n", argv[0]); exit(1); } if (!strcmp(argv[1], "be")) big_endian = 1; else if (!strcmp(argv[1], "le")) big_endian = 0; else goto usage; binf = fopen(argv[2], "r"); if (!binf) { perror(argv[2]); exit(1); } wav = wav_write_open(argv[3], 8000, 16, 1); if (!wav) { perror(argv[3]); exit(1); } for (;;) { cc = fread(bytes, 1, sizeof bytes, binf); if (cc <= 0) break; if (cc & 1) { fprintf(stderr, "error: %s has odd number of bytes\n", argv[2]); exit(1); } if (big_endian) swap_bytes(bytes, cc); wav_write_data(wav, bytes, cc); } wav_write_close(wav); exit(0); }