726.c

来自「zigbee 飞思卡尔 音频传输 基于ucos的所有源码」· C语言 代码 · 共 52 行

#include <stdio.h>
#include "whole.h"
#include "g726private.h"
#include <math.h>
#include "common.h"
#include "mcf5213_gpio.h"
#include "mcf5xxx.h"
	struct g726_state_s st;
	struct g726_state_s *p = NULL;
	struct g726_state_s st2;
	struct g726_state_s *p2 = NULL;

#define G726datalength 0x400*2
int datatemp[G726datalength] = {0};
int flag11 = 0;  
int data_mid_temp;
int data_in_temp;
int g726Enter_Times = 0;
int G726Module(int data_in)//[0x400])                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
{

int i;
//short data_end_temp;
if(g726Enter_Times == 0)
{
	g726Enter_Times = 1;
p= &st;
p2 = &st2;
g726_init_state(p);
g726_init_state(p2);

}

//		data_in_temp = data_in;
		asm
		{
			move.l data_in,d4
			ext.l d4
			asl.l #4,d4
			move.l d4,data_in_temp
		}
		data_mid_temp = g726_16_encoder(data_in_temp,p);
		data_mid_temp = g726_16_decoder(data_mid_temp,p2);
		asm
		{
			move.l data_mid_temp,d4
			asr.l #4,d4
			move.l d4,data_mid_temp
		}
	return data_mid_temp;
}