adpcmparam.h

基于TI xdais算法标准的音频ADPCM算法

#include <sio.h>
#include "evmdm642_echocfg.h"

#define NUM_CODEC_CHANNELS	 8	/* stereo: left + right		*/
#define SAMPLEING_RATE		48	/* 48 samples/ms			*/
#define FRAME_SIZE			80	/* 10 ms					*/
#define	NFRAMES				25 /* 100 frames = 1 second	*/
#define	BUFLEN				(NUM_CODEC_CHANNELS*SAMPLEING_RATE*FRAME_SIZE)
#define CHANBUFLEN			(SAMPLEING_RATE*FRAME_SIZE)
#define NUM_PROCESS_CHAN    (SAMPLEING_RATE*FRAME_SIZE/2) /*process num/(chan*frame)*/
#define ENC_OUTLEN    		(SAMPLEING_RATE*FRAME_SIZE/4) /*encode out/decode in length*/


/*#define	BUFLEN				1764*8
#define CHANBUFLEN			1764
#define NUM_PROCESS_CHAN    294
#define ENC_OUTLEN  		147

#define DEC_OUTLEN          ENC_OUTLEN
#define TIMEOUT     		0    */

#define BUFSIZE (BUFLEN * sizeof(short)) 

typedef struct MyMsg{
       QUE_Elem  elem;
       short     *ptr;
   }MyMsg; 

#ifdef _6x_
extern far LOG_Obj trace;

/* 
 * Buffers placed in external memory are aligned on a 128 bytes boundary.
 * In addition, the buffer should be of a size multiple of 128 bytes for 
 * the cache work optimally on the C6x.
 */
#define BUFALIGN 128    /* alignment of buffer to allow use of L2 cache */
#else
extern LOG_Obj trace;
#define BUFALIGN 1
#endif