FreeCalypso > hg > gsm-codec-lib
changeset 153:14b627682458
gsmfr-decode-r utility put together
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Wed, 14 Dec 2022 23:11:20 +0000 |
| parents | a217a6eacbad |
| children | 01ce75ea1c8e |
| files | .hgignore frtest/Makefile frtest/decode-r.c libtest/Makefile libtest/robewrite.c libtest/robewrite.h |
| diffstat | 6 files changed, 111 insertions(+), 3 deletions(-) [+] |
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--- a/.hgignore Wed Dec 14 22:40:31 2022 +0000 +++ b/.hgignore Wed Dec 14 23:11:20 2022 +0000 @@ -22,6 +22,7 @@ ^frtest/gsmfr-cvt-dlcap$ ^frtest/gsmfr-decode$ +^frtest/gsmfr-decode-r$ ^frtest/gsmfr-encode$ ^frtest/gsmfr-hand-test$ ^frtest/gsmfr-max-out$
--- a/frtest/Makefile Wed Dec 14 22:40:31 2022 +0000 +++ b/frtest/Makefile Wed Dec 14 23:11:20 2022 +0000 @@ -1,7 +1,7 @@ CC= gcc CFLAGS= -O2 -PROGS= gsmfr-cvt-dlcap gsmfr-decode gsmfr-encode gsmfr-hand-test gsmfr-max-out\ - gsmfr-preproc +PROGS= gsmfr-cvt-dlcap gsmfr-decode gsmfr-decode-r gsmfr-encode \ + gsmfr-hand-test gsmfr-max-out gsmfr-preproc LIBPP= ../libgsmfrp/libgsmfrp.a LIBTEST=../libtest/libtest.a LIBDEC= ${LIBTEST} ${LIBPP} @@ -17,6 +17,9 @@ gsmfr-decode: decode.o ${LIBDEC} ${CC} ${CFLAGS} -o $@ decode.o ${LIBDEC} -lgsm +gsmfr-decode-r: decode-r.o ${LIBDEC} + ${CC} ${CFLAGS} -o $@ decode-r.o ${LIBDEC} -lgsm + gsmfr-encode: encode.o ${LIBTEST} ${CC} ${CFLAGS} -o $@ encode.o ${LIBTEST} -lgsm
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/frtest/decode-r.c Wed Dec 14 23:11:20 2022 +0000 @@ -0,0 +1,75 @@ +/* + * gsmfr-decode-r is like gsmfr-decode, but writes the decoded PCM + * output in our "robe" format instead of WAV. + */ + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <gsm.h> +#include "../libgsmfrp/gsm_fr_preproc.h" +#include "../libtest/binreader.h" +#include "../libtest/robewrite.h" + +main(argc, argv) + char **argv; +{ + FILE *binf, *outf; + gsm dec_state; + struct gsmfr_preproc_state *pp_state; + uint8_t frame[BINFILE_MAX_FRAME]; + int16_t pcm[160]; + int rc, bfi, taf; + + if (argc != 3) { + fprintf(stderr, "usage: %s input.gsm output.robe\n", argv[0]); + exit(1); + } + binf = fopen(argv[1], "r"); + if (!binf) { + perror(argv[1]); + exit(1); + } + outf = fopen(argv[2], "w"); + if (!outf) { + perror(argv[2]); + exit(1); + } + dec_state = gsm_create(); + if (!dec_state) { + fprintf(stderr, "gsm_create() failed!\n"); + exit(1); + } + pp_state = gsmfr_preproc_create(); + if (!pp_state) { + fprintf(stderr, "gsmfr_preproc_create() failed!\n"); + 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) == 0xD0) + bfi = 0; + else { + fprintf(stderr, "error: %s is not in FR codec format\n", + argv[1]); + exit(1); + } + if (bfi) + gsmfr_preproc_bfi(pp_state, taf, frame); + else + gsmfr_preproc_good_frame(pp_state, frame); + gsm_decode(dec_state, frame, pcm); + write_pcm_to_robe(outf, pcm); + } + fclose(outf); + exit(0); +}
--- a/libtest/Makefile Wed Dec 14 22:40:31 2022 +0000 +++ b/libtest/Makefile Wed Dec 14 23:11:20 2022 +0000 @@ -1,6 +1,7 @@ CC= gcc CFLAGS= -O2 -OBJS= binreader.o parse_dlcap.o pcmwrite.o wavrdhelp.o wavreader.o wavwriter.o +OBJS= binreader.o parse_dlcap.o pcmwrite.o robewrite.o wavrdhelp.o \ + wavreader.o wavwriter.o LIB= libtest.a all: ${LIB}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtest/robewrite.c Wed Dec 14 23:11:20 2022 +0000 @@ -0,0 +1,22 @@ +/* + * Here we implement our PCM write helper function for "robe" format. + */ + +#include <stdio.h> +#include <stdint.h> +#include "robewrite.h" + +void write_pcm_to_robe(FILE *outf, const int16_t *pcm) +{ + uint8_t bytes[320], *dp; + int16_t samp; + unsigned n; + + dp = bytes; + for (n = 0; n < 160; n++) { + samp = pcm[n]; + *dp++ = (samp >> 8) & 0xFF; + *dp++ = samp & 0xFF; + } + fwrite(bytes, 2, 160, outf); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtest/robewrite.h Wed Dec 14 23:11:20 2022 +0000 @@ -0,0 +1,6 @@ +/* + * This header file declares the interface to our helper function + * for writing 16-bit linear PCM samples to a "robe" output file. + */ + +extern void write_pcm_to_robe(FILE *outf, const int16_t *pcm);