音频数字水印的DSP实现

/* ;*********************************************************************** ;* 北京达盛科技有限公司 ;* 研 发 部 ;* ;* http://www.techshine.com ;* ;*--------------------------------------------- 文件信息 --------------- ;* ;* 文件名称 : AUDIO.C ;* 文件功能 : 该文件为测试TLV320AIC23的测试程序,CPU=TMS320VC5402 ;* MCLK = 12.288 MHz,TLV320AIC23=MASTER ;* 接口说明：MCBSP0配置成SPI方式，设置TLV320AIC23的寄存器， ;* MCBSP1配置成32位方式，和TLV320AIC23交换数据 */ //------------------头文件-------------------------------------- //#include "MMRegs.h" #include "DspRegDefine.h" #include "math.h" //--------------------------------------------------------------- /* ****************** 宏定义 *************** ************************************************************ */ #define UCHAR unsigned char #define UINT16 unsigned int #define UINT32 unsigned long #define TRUE 1 #define FALSE 0 /* ************************************************************ ****************** 全局变量******************* ************************************************************ */ UINT16 read_data2,read_data1; //MCBSP1 接收数据变量 UINT16 write_data2,write_data1; //MCBSP1 发送数据变量 //UINT16 readaudio1[256],readaudio2[256];//MCBSP1 接收数据变量数组 UCHAR flag; /* ioport unsigned port8001; unsigned int show=0x00aa; unsigned int num=0x0000; */ UINT16 N=256; UINT16 sumnum=0;//计数参数，用来给数组元素赋值 UINT16 fullflag=0;//音频第一帧，第二帧标志位� UINT16 arraynum=0; UINT16 managenum=0; int count=0; double sourcedata1[256],sourcedata2[256];//音频数组 double resourcedata1[256];//空间换时间 //double recsource[256],decsource[256]; double tmp[256]; int picdata[100]={160,157,155,154,156,159,160,161,167,166,153,126,93,87,89,89,94,98,98,96,96,97,98,101,105,106,106,104,103,102,100,100,97,97,101,97,88,78,77,80,79,76,70,59,55,51,48,47,52,98,132,108,54,38,32,32,37,35,44,81,77,57,52,48,159,156,154,155,157,160,161,165,162,149,122,96,88,89,89,90,95,98,98,96,95,96,98,100,103,104,104,103,101,99,99,101,97,95,98,92}; int bindata[8]; int repicdata[100]; /* ********************************************************************** *************** 所使用的函数原型 ***************** ********************************************************************** */ void cpu_init(void); //初始化CPU void aic23_init(void);//初始化TLV320AIC23，设置内部寄存器 void mcbsp0_write_rdy(UINT16 out_data);//MCBSP0发送一个数据 void mcbsp0_init_SPI(void);//MCBSP0设置为SPI模式 void mcbsp0_close(void);//MCBSP0关闭 void mcbsp1_init(void);//MCBSP1初始化 void mcbsp1_write_rdy(UINT16 out_data1,UINT16 out_data2);//MCBSP1发送一个数据32位 void mcbsp1_read_rdy(void);////MCBSP1接收一个数据32位 void mcbsp1_open(void);//MCBSP1打开 void mcbsp1_close(void);//MCBSP1关闭 interrupt void mcbsp1_read(void);//MCBSP1中断接收数据 interrupt void mcbsp1_write(void); //MCBSP1中断发送数据 interrupt void timer0(void); void Delay(int numbers); //延迟 //void wavedec(int length,int level,double *source); //void waverec(int length,int level,double *source); /* ************************************************************************ *********************** 函数定义 ****************** ************************************************************************ */ //-------------------------------------------------------------------- // 函数名称 : void cpu_init(void) // 函数说明 : 初始化CPU // 输入参数 : 无 // 输出参数 : 无 //-------------------------------------------------------------------- void cpu_init(void) { asm(" nop "); asm(" nop "); asm(" nop "); //------------------------------------------------------------------- //CLKMD DEFINITIONS: // PLLMUL (bit 15-12) - 0000 PLL multiplier = 0 (mult by 1) // PLLDIV (bit 11) - 0 PLL divider = 0 (div by 1) // PLLCOUNT (bit 10-3)- 11111111 PLL counter set to max // PLLONOFF (bit 2) - 1 PLL on // PLLNDIV (bit 1) - 1 Select PLL mode // PLLSTATUS (bit 1) - x PLL Status (read only) // ------------------ // 0000011111111111 = 0x07ff CLKMD=1 X CLKIN //-------------------------------------------------------------------- *(unsigned int*)CLKMD=0x0; //switch to DIV mode clkout= 1/2 clkin while(((*(unsigned int*)CLKMD)&01)!=0); *(unsigned int*)CLKMD=0x17FA; //switch to PLL X 1 mode //-------------------------------------------------------------------- // ST0 DEFINITIONS: // ARP (bit 15-13) - 000 Auxiliary register pointer // TC (bit 12) - 1 Test/control flag // C (bit 11) - 1 Carry is set to 1 if the result of an addition generates a carry; it is cleared to 0 if the // result of a subtraction generates a borrow. // OVA (bit 10) - 0 Overflow flag for accumulator A // OVB (bit 9) - 0 Overflow flag for accumulator B // DP (bit 8-0) - 00000000 Data-memory page pointer // -------------------- // 0001 1000 0000 0000 =0x1800 Reset value //-------------------------------------------------------------------- *(unsigned int*)ST0=0x1800; //-------------------------------------------------------------------- // ST1 DEFINITIONS: // BRAF (bit 15) - 0 Block-repeat active flag // CPL (bit 14) - 1 Compiler mode CPL=0 DP;CPL=1 SP // XF (bit 13) - 1 XF status // HM (bit 12) - 0 Hold mode // INTM (bit 11) - 1 Interrupt mode INTM=0,All unmasked interrupts are enabled // Reser (bit 10) - 0 Always read as 0 // OVM (bit 9) - 0 Overflow mode // SXM (bit 8) - 1 Sign-extension mode // C16 (bit 7) - 0 Dual 16-Bit/double-precision arithmetic mode // FRCT (bit 6) - 0 Fractional mode // CMPT (bit 5) - 0 Compatibility mode // ASM (bit 4-0) - 00000 Accumulator shift mode // -------------------- // 0110 1001 0000 0000 =0x2900 Reset value //-------------------------------------------------------------------- *(unsigned int*)ST1=0x6900; //-------------------------------------------------------------------- //IPTR DEFINITIONS� // IPTR (bit 15-7) - 001111111 Run-time Interrupt vector location = 0x3f80 (for now) // MP/~MC (bit 6) - 1 Turn off internal Instruction ROM (use RAM) // OVLY (bit 5) - 1 Turn on internal RAM // AVIS (bit 4) - 1 Address visibility on // DROM (bit 3) - 0 Data ROM of FF00~FFFF is external // CLKOFF (bit 2) - 0 Clockout enabled,only for use clkout=cpu clock // SMUL (bit 1) - 1 Saturate before multiply on MAC // SST (bit 0) - 0 Do not saturate before store // ----------------- // 0011 1111 1111 0010 = 0x3ff2 //--------------------------------------------------------------------- *(unsigned int*)PMST=0x3FF2; //--------------------------------------------------------------------- // SWWSR DEFINITIONS� // XPA (bit 15) - 0 Extended program address control bit. XPA is used in conjunction with the program space fields // (bits 0 through 5) to select the address range for program space wait states // I/O (bits 14-12) -