www.pudn.com > Voice_ADPCM.rar > RAWDAUDI.C

/* testd - Test adpcm decoder */ 
 
#include "adpcm.h" 
#include  
 
struct adpcm_state state; 
 
#define NSAMPLES 1000 
 
char	abuf[NSAMPLES/2]; 
short	sbuf[NSAMPLES]; 
 
main() { 
    int n; 
 
    while(1) { 
	n = read(0, abuf, NSAMPLES/2); 
	if ( n < 0 ) { 
	    perror("input file"); 
	    exit(1); 
	} 
	if ( n == 0 ) break; 
	adpcm_decoder(abuf, sbuf, n*2, &state); 
	write(1, sbuf, n*4); 
    } 
    fprintf(stderr, "Final valprev=%d, index=%d\n", 
	    state.valprev, state.index); 
    exit(0); 
}