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print max and mse

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Originally committed as revision 9826 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-07-29 09:58:36 +00:00
parent 7919d10c61
commit 86c624af1b
1 changed files with 7 additions and 1 deletions
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8
libavcodec/fft-test.c
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@ -144,13 +144,19 @@ int64_t gettime(void)
void check_diff(float *tab1, float *tab2, int n)
{
int i;
double max= 0;
double error= 0;
for(i=0;i<n;i++) {
if (fabsf(tab1[i] - tab2[i]) >= 1e-3) {
double e= fabsf(tab1[i] - tab2[i]);
if (e >= 1e-3) {
av_log(NULL, AV_LOG_ERROR, "ERROR %d: %f %f\n",
i, tab1[i], tab2[i]);
}
error+= e*e;
if(e>max) max= e;
}
av_log(NULL, AV_LOG_INFO, "max:%f e:%g\n", max, sqrt(error)/n);
}