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lls: use av_lfg instead of rand() in test program

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-08 15:01:05 +01:00
parent 1fef92fd73
commit 7ce914fb5a
1 changed files with 8 additions and 5 deletions
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13
libavutil/lls.c
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@ -118,24 +118,27 @@ double av_evaluate_lls(LLSModel *m, double *param, int order)
#ifdef TEST
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#include "lfg.h"
int main(void)
{
LLSModel m;
int i, order;
AVLFG lfg;
av_lfg_init(&lfg, 1);
av_init_lls(&m, 3);
for (i = 0; i < 100; i++) {
double var[4];
double eval;
var[0] = (rand() / (double) RAND_MAX - 0.5) * 2;
var[1] = var[0] + rand() / (double) RAND_MAX - 0.5;
var[2] = var[1] + rand() / (double) RAND_MAX - 0.5;
var[3] = var[2] + rand() / (double) RAND_MAX - 0.5;
var[0] = (av_lfg_get(&lfg) / (double) UINT_MAX - 0.5) * 2;
var[1] = var[0] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
var[2] = var[1] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
var[3] = var[2] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
av_update_lls(&m, var, 0.99);
av_solve_lls(&m, 0.001, 0);
for (order = 0; order < 3; order++) {