ccsub.h

来自「4.8k/s速率FS1016标准语音压缩源码」· C头文件 代码 · 共 31 行

/*	CELP ARRAY SIZE PARAMETERS					 
	MAXNCSIZE 	maximum code book size	 (number of codewords)
	MAXL      	maximum codeword vector length
	MAXCODE   	maximum code book array length in samples
	MAXLL     	maximum LPC analysis frame size
	MAXNO     	maximum LPC filter order
	MAXLP     	maximum pitch prediction frame size	 
	MAXNP     	maximum pitch prediction order	 
	MMIN      	minimum delay pitch predictor (minimum value M)
	MMAX       	maximum delay pitch predictor (maximum value M)
	MAXPD		maximum number of pitch delays	 
	MAXPA      	maximum pitch analysis buffer length (use to be "idb")
			(assumes code book is updated faster or same as pitch)
	MAXM2		maximum array size for delay parameter 


*/

#define	MAXNCSIZE 512
#define	MAXL      60
#define	MAXCODE   2*(MAXNCSIZE)+MAXL /* shift by 2 overlapped code book */
#define	MAXLL     240
#define	MAXNO     10 
#define	MAXLP     60 /* bug, fixed - See MAXPA */
#define	MAXNP     3
#define	MMIN      20
#define	MMAX      147
#define MAXPD	  256
#define MAXM2	  20
#define	MAXPA     MAXLP+MMAX+2+MAXM2