view libgsmefr/sid_insert.c @ 193:cf39a90f5196

libgsmefr/dtx_enc.c: perf opt
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 04 Jan 2023 03:22:35 +0000
parents b4db5366b595
children
line wrap: on
line source

/*
 * 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;
}