FreeCalypso > hg > gsm-codec-lib
changeset 3:3cd5ad24b1d4
libgsmfrp: implement internal state
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 19 Nov 2022 09:03:57 +0000 |
| parents | 2b5770c715ee |
| children | 286d5f097eb4 |
| files | libgsmfrp/Makefile libgsmfrp/internal.h libgsmfrp/state.c |
| diffstat | 3 files changed, 47 insertions(+), 1 deletions(-) [+] |
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--- a/libgsmfrp/Makefile Sat Nov 19 07:21:26 2022 +0000 +++ b/libgsmfrp/Makefile Sat Nov 19 09:03:57 2022 +0000 @@ -1,6 +1,6 @@ CC= gcc CFLAGS= -O2 -OBJS= sidclass.o silence_frame.o +OBJS= sidclass.o silence_frame.o state.o LIB= libgsmfrp.a all: ${LIB}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libgsmfrp/internal.h Sat Nov 19 09:03:57 2022 +0000 @@ -0,0 +1,22 @@ +/* + * This header file is internal to libgsmfrp; + * here we define our state structure. + */ + +enum rx_state { + NO_DATA = 0, + SPEECH, + SPEECH_MUTING, + COMFORT_NOISE, + LOST_SID, +}; + +typedef unsigned char cparam; + +struct gsmfr_preproc_state { + enum rx_state rx_state; + int got_valid_sid; + gsm_frame speech_frame; + cparam cnoise_larc[8]; + cparam cnoise_xmaxc[4]; +};
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libgsmfrp/state.c Sat Nov 19 09:03:57 2022 +0000 @@ -0,0 +1,24 @@ +/* + * In this module we implement allocation and initialization + * of state structures for our GSM FR preprocessor. + */ + +#include <stdlib.h> +#include <string.h> +#include "gsm_fr_preproc.h" +#include "internal.h" + +struct gsmfr_preproc_state *gsmfr_preproc_create(void) +{ + struct gsmfr_preproc_state *st; + + st = malloc(sizeof(struct gsmfr_preproc_state)); + if (st) + gsmfr_preproc_reset(st); + return st; +} + +void gsmfr_preproc_reset(struct gsmfr_preproc_state *st) +{ + memset(st, 0, sizeof(struct gsmfr_preproc_state)); +}