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