FreeCalypso > hg > gsm-codec-lib
changeset 142:578fdedf4327
pcm16-wav2raw utility written
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Wed, 14 Dec 2022 06:45:17 +0000 |
| parents | c1dc094f0821 |
| children | 195911f2211c |
| files | .hgignore miscutil/Makefile miscutil/wav2raw.c |
| diffstat | 3 files changed, 72 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/.hgignore Wed Dec 14 06:19:03 2022 +0000 +++ b/.hgignore Wed Dec 14 06:45:17 2022 +0000 @@ -31,5 +31,6 @@ ^miscutil/gsm-efr2amr$ ^miscutil/gsmrec-dump$ ^miscutil/pcm16-raw2wav$ +^miscutil/pcm16-wav2raw$ ^pcap/rtp-gsmfr-extr$
--- a/miscutil/Makefile Wed Dec 14 06:19:03 2022 +0000 +++ b/miscutil/Makefile Wed Dec 14 06:45:17 2022 +0000 @@ -1,6 +1,6 @@ CC= gcc CFLAGS= -O2 -PROGS= gsm-amr2efr gsm-efr2amr gsmrec-dump pcm16-raw2wav +PROGS= gsm-amr2efr gsm-efr2amr gsmrec-dump pcm16-raw2wav pcm16-wav2raw LIBEFR= ../libgsmefr/libgsmefr.a LIBTEST=../libtest/libtest.a INSTBIN=/opt/freecalypso/bin @@ -22,6 +22,9 @@ pcm16-raw2wav: raw2wav.o ${LIBTEST} ${CC} ${CFLAGS} -o $@ raw2wav.o ${LIBTEST} +pcm16-wav2raw: wav2raw.o ${LIBTEST} + ${CC} ${CFLAGS} -o $@ wav2raw.o ${LIBTEST} + install: mkdir -p ${INSTBIN} install -c ${PROGS} ${INSTBIN}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/miscutil/wav2raw.c Wed Dec 14 06:45:17 2022 +0000 @@ -0,0 +1,67 @@ +/* + * 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); +}