FreeCalypso > hg > gsm-codec-lib
changeset 495:aee13079db3c
libgsmhr1: implement SID reset
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 17 Jun 2024 23:25:19 +0000 |
| parents | aaf4dec8bee0 |
| children | af70bf42eb1b |
| files | libgsmhr1/Makefile libgsmhr1/sid_reset.c |
| diffstat | 2 files changed, 17 insertions(+), 2 deletions(-) [+] |
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--- a/libgsmhr1/Makefile Mon Jun 17 23:14:19 2024 +0000 +++ b/libgsmhr1/Makefile Mon Jun 17 23:25:19 2024 +0000 @@ -1,5 +1,5 @@ -OBJS= pack_frame.o rtp_in.o sid_detect.o twts002_in.o twts002_out.o \ - unpack_frame.o +OBJS= pack_frame.o rtp_in.o sid_detect.o sid_reset.o twts002_in.o \ + twts002_out.o unpack_frame.o HDRS= tw_gsmhr.h LIB= libgsmhr1.a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libgsmhr1/sid_reset.c Mon Jun 17 23:25:19 2024 +0000 @@ -0,0 +1,15 @@ +/* + * The function in this module implements reset of HRv1 SID codeword, + * for rejuvenating SID frames that may have been corrupted, but were still + * accepted as valid SID. + */ + +#include <stdint.h> +#include <string.h> +#include "tw_gsmhr.h" + +void gsmhr_ts101318_set_sid_codeword(uint8_t *payload) +{ + payload[4] |= 0x7F; + memset(payload + 5, 0xFF, 9); +}