FreeCalypso > hg > gsm-codec-lib
view miscutil/wav2raw.c @ 467:ad032051166a
doc: AMR-EFR-hybrid-emu new article
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 12 May 2024 23:54:43 +0000 |
parents | 578fdedf4327 |
children |
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/* * This program reads a 16-bit linear PCM speech recording in WAV format * and converts it to raw format, either BE or LE. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "../libtest/wavreader.h" #include "../libtest/wavrdhelp.h" main(argc, argv) char **argv; { int big_endian; void *wav; FILE *outf; int16_t pcm[160], samp; uint8_t bytes[320], *dp; int cc, rc, i; if (argc != 4) { usage: fprintf(stderr, "usage: %s input.wav output.raw be|le\n", argv[0]); exit(1); } if (!strcmp(argv[3], "be")) big_endian = 1; else if (!strcmp(argv[3], "le")) big_endian = 0; else goto usage; wav = wav_read_open(argv[1]); if (!wav) { perror(argv[1]); exit(1); } rc = wavrd_check_header(wav, argv[1]); if (rc < 0) exit(1); /* error msg already printed */ outf = fopen(argv[2], "w"); if (!outf) { perror(argv[2]); exit(1); } for (;;) { cc = wavrd_get_pcm_block(wav, pcm); if (!cc) break; dp = bytes; for (i = 0; i < cc; i++) { samp = pcm[i]; if (big_endian) { *dp++ = (samp >> 8) & 0xFF; *dp++ = samp & 0xFF; } else { *dp++ = samp & 0xFF; *dp++ = (samp >> 8) & 0xFF; } } fwrite(bytes, 2, cc, outf); } fclose(outf); exit(0); }