ref: 02dcf6aad863c40e5a8372694055ab8ee0fa23ae
dir: /celt/tests/test_unit_laplace.c/
#ifdef HAVE_CONFIG_H #include "config.h" #endif #include <stdio.h> #include <stdlib.h> #include "laplace.h" #define CELT_C #include "stack_alloc.h" #include "entenc.c" #include "entdec.c" #include "entcode.c" #include "laplace.c" #define DATA_SIZE 40000 int ec_laplace_get_start_freq(int decay) { opus_uint32 ft = 32768 - LAPLACE_MINP*(2*LAPLACE_NMIN+1); int fs = (ft*(16384-decay))/(16384+decay); return fs+LAPLACE_MINP; } int main(void) { int i; int ret = 0; ec_enc enc; ec_dec dec; unsigned char *ptr; int val[10000], decay[10000]; ALLOC_STACK; ptr = (unsigned char *)malloc(DATA_SIZE); ec_enc_init(&enc,ptr,DATA_SIZE); val[0] = 3; decay[0] = 6000; val[1] = 0; decay[1] = 5800; val[2] = -1; decay[2] = 5600; for (i=3;i<10000;i++) { val[i] = rand()%15-7; decay[i] = rand()%11000+5000; } for (i=0;i<10000;i++) ec_laplace_encode(&enc, &val[i], ec_laplace_get_start_freq(decay[i]), decay[i]); ec_enc_done(&enc); ec_dec_init(&dec,ec_get_buffer(&enc),ec_range_bytes(&enc)); for (i=0;i<10000;i++) { int d = ec_laplace_decode(&dec, ec_laplace_get_start_freq(decay[i]), decay[i]); if (d != val[i]) { fprintf (stderr, "Got %d instead of %d\n", d, val[i]); ret = 1; } } return ret; }