FreeCalypso > hg > gsm-codec-lib
comparison miscutil/wav2raw.c @ 142:578fdedf4327
pcm16-wav2raw utility written
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 14 Dec 2022 06:45:17 +0000 |
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141:c1dc094f0821 | 142:578fdedf4327 |
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1 /* | |
2 * This program reads a 16-bit linear PCM speech recording in WAV format | |
3 * and converts it to raw format, either BE or LE. | |
4 */ | |
5 | |
6 #include <stdio.h> | |
7 #include <stdint.h> | |
8 #include <stdlib.h> | |
9 #include <string.h> | |
10 #include <strings.h> | |
11 #include "../libtest/wavreader.h" | |
12 #include "../libtest/wavrdhelp.h" | |
13 | |
14 main(argc, argv) | |
15 char **argv; | |
16 { | |
17 int big_endian; | |
18 void *wav; | |
19 FILE *outf; | |
20 int16_t pcm[160], samp; | |
21 uint8_t bytes[320], *dp; | |
22 int cc, rc, i; | |
23 | |
24 if (argc != 4) { | |
25 usage: fprintf(stderr, "usage: %s input.wav output.raw be|le\n", | |
26 argv[0]); | |
27 exit(1); | |
28 } | |
29 if (!strcmp(argv[3], "be")) | |
30 big_endian = 1; | |
31 else if (!strcmp(argv[3], "le")) | |
32 big_endian = 0; | |
33 else | |
34 goto usage; | |
35 wav = wav_read_open(argv[1]); | |
36 if (!wav) { | |
37 perror(argv[1]); | |
38 exit(1); | |
39 } | |
40 rc = wavrd_check_header(wav, argv[1]); | |
41 if (rc < 0) | |
42 exit(1); /* error msg already printed */ | |
43 outf = fopen(argv[2], "w"); | |
44 if (!outf) { | |
45 perror(argv[2]); | |
46 exit(1); | |
47 } | |
48 for (;;) { | |
49 cc = wavrd_get_pcm_block(wav, pcm); | |
50 if (!cc) | |
51 break; | |
52 dp = bytes; | |
53 for (i = 0; i < cc; i++) { | |
54 samp = pcm[i]; | |
55 if (big_endian) { | |
56 *dp++ = (samp >> 8) & 0xFF; | |
57 *dp++ = samp & 0xFF; | |
58 } else { | |
59 *dp++ = samp & 0xFF; | |
60 *dp++ = (samp >> 8) & 0xFF; | |
61 } | |
62 } | |
63 fwrite(bytes, 2, cc, outf); | |
64 } | |
65 fclose(outf); | |
66 exit(0); | |
67 } |