FreeCalypso > hg > gsm-codec-lib
changeset 37:b4db5366b595
libgsmefr: implement SID code word insertion
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 24 Nov 2022 02:55:24 +0000 |
| parents | b5726d659915 |
| children | 38326102fc43 |
| files | libgsmefr/Makefile libgsmefr/sid_insert.c |
| diffstat | 2 files changed, 27 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/libgsmefr/Makefile Thu Nov 24 02:36:47 2022 +0000 +++ b/libgsmefr/Makefile Thu Nov 24 02:55:24 2022 +0000 @@ -1,6 +1,6 @@ CC= gcc CFLAGS= -O2 -OBJS= frame2params.o params2frame.o sid_class.o +OBJS= frame2params.o params2frame.o sid_class.o sid_insert.o LIB= libgsmefr.a INSTALL_PREFIX= /usr/local
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libgsmefr/sid_insert.c Thu Nov 24 02:55:24 2022 +0000 @@ -0,0 +1,26 @@ +/* + * EFR_insert_sid_codeword() inserts the 95 bit wide SID codeword into + * an EFR frame in RTP encoding, normally as part of EFR_encode_frame() + * processing right after EFR_params2frame(). + */ + +#include "gsm_efr.h" + +void EFR_insert_sid_codeword(uint8_t *frame) +{ + frame[6] |= 0x6F; + frame[7] = 0xFF; + frame[8] = 0xFF; + frame[9] |= 0x80; + frame[12] |= 0x3B; + frame[13] = 0xFF; + frame[14] = 0xFF; + frame[15] |= 0xE0; + frame[19] = 0xFF; + frame[20] = 0xFF; + frame[21] = 0xFF; + frame[25] = 0xFF; + frame[26] |= 0xFC; + frame[27] = 0xFF; + frame[28] |= 0xC0; +}