RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-01-14 19:31:24 +00:00
Code Issues Projects Releases Wiki Activity

Replace rand() usage by av_lfg_get().

Browse Source 
Originally committed as revision 18420 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Diego Biurrun 2009-04-10 17:12:36 +00:00
parent a2085cccfa
commit cc7b62afd2
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
libavformat/timefilter.c
View File

@ -76,9 +76,12 @@ double ff_timefilter_update(TimeFilter *self, double system_time, double period)
}
#ifdef TEST
#undef rand
#include "libavutil/lfg.h"
#define LFG_MAX ((1LL << 32) - 1)
int main(void)
{
AVLFG prng;
double n0,n1;
#define SAMPLES 1000
double ideal[SAMPLES];
@ -96,10 +99,11 @@ int main(void)
double bestpar1=0.001;
int better, i;
srandom(123);
av_lfg_init(&prng, 123);
for(i=0; i<SAMPLES; i++){
ideal[i] = 10 + i + n1*i/(1000);
samples[i]= ideal[i] + n0*(rand()-RAND_MAX/2)/(RAND_MAX*10LL);
samples[i] = ideal[i] + n0 * (av_lfg_get(&prng) - LFG_MAX / 2)
/ (LFG_MAX * 10LL);
}
do{