FreeCalypso > hg > gsm-codec-lib
changeset 100:d5bab777865a
gsmefr-decode utility written
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 26 Nov 2022 22:07:55 +0000 |
| parents | 7152cc7d1ca3 |
| children | d86f866489e9 |
| files | .hgignore efrtest/Makefile efrtest/decode.c |
| diffstat | 3 files changed, 74 insertions(+), 1 deletions(-) [+] |
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--- a/.hgignore Sat Nov 26 21:51:52 2022 +0000 +++ b/.hgignore Sat Nov 26 22:07:55 2022 +0000 @@ -9,6 +9,7 @@ ^dev/gsm0611-silence-fr$ ^dev/gsm0611-silence-fr\.out$ +^efrtest/gsmefr-decode$ ^efrtest/gsmefr-etsi-dec$ ^efrtest/gsmefr-rec2etsi$
--- a/efrtest/Makefile Sat Nov 26 21:51:52 2022 +0000 +++ b/efrtest/Makefile Sat Nov 26 22:07:55 2022 +0000 @@ -1,12 +1,15 @@ CC= gcc CFLAGS= -O2 -PROGS= gsmefr-etsi-dec gsmefr-rec2etsi +PROGS= gsmefr-decode gsmefr-etsi-dec gsmefr-rec2etsi LIBEFR= ../libgsmefr/libgsmefr.a LIBTEST=../libtest/libtest.a INSTBIN=/opt/freecalypso/bin all: ${PROGS} +gsmefr-decode: decode.o ${LIBTEST} ${LIBEFR} + ${CC} ${CFLAGS} -o $@ decode.o ${LIBTEST} ${LIBEFR} + gsmefr-etsi-dec: etsi-dec.o ${LIBEFR} ${CC} ${CFLAGS} -o $@ etsi-dec.o ${LIBEFR}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/efrtest/decode.c Sat Nov 26 22:07:55 2022 +0000 @@ -0,0 +1,69 @@ +/* + * 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); +}