RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-19 05:55:07 +00:00
Code Issues Projects Releases Wiki Activity

fft-test: Replace do_mdct with a tf_transform enum and switch on it.

Browse Source 
Originally committed as revision 21140 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Converse 2010-01-11 16:40:01 +00:00
parent ae550ce9eb
commit 5b37ef8e43
1 changed files with 26 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
libavcodec/fft-test.c
View File

@ -173,7 +173,10 @@ static void help(void)
exit(1);
}
enum tf_transform {
TRANSFORM_FFT,
TRANSFORM_MDCT,
};
int main(int argc, char **argv)
{
@ -181,7 +184,7 @@ int main(int argc, char **argv)
FFTSample *tab2;
int it, i, c;
int do_speed = 0;
int do_mdct = 0;
enum tf_transform transform = TRANSFORM_FFT;
int do_inverse = 0;
FFTContext s1, *s = &s1;
FFTContext m1, *m = &m1;
@ -206,7 +209,7 @@ int main(int argc, char **argv)
do_inverse = 1;
break;
case 'm':
do_mdct = 1;
transform = TRANSFORM_MDCT;
break;
case 'n':
fft_nbits = atoi(optarg);
@ -223,20 +226,23 @@ int main(int argc, char **argv)
tab_ref = av_malloc(fft_size * sizeof(FFTComplex));
tab2 = av_malloc(fft_size * sizeof(FFTSample));
if (do_mdct) {
switch (transform) {
case TRANSFORM_MDCT:
av_log(NULL, AV_LOG_INFO,"Scale factor is set to %f\n", scale);
if (do_inverse)
av_log(NULL, AV_LOG_INFO,"IMDCT");
else
av_log(NULL, AV_LOG_INFO,"MDCT");
ff_mdct_init(m, fft_nbits, do_inverse, scale);
} else {
break;
case TRANSFORM_FFT:
if (do_inverse)
av_log(NULL, AV_LOG_INFO,"IFFT");
else
av_log(NULL, AV_LOG_INFO,"FFT");
ff_fft_init(s, fft_nbits, do_inverse);
fft_ref_init(fft_nbits, do_inverse);
break;
}
av_log(NULL, AV_LOG_INFO," %d test\n", fft_size);
@ -250,7 +256,8 @@ int main(int argc, char **argv)
/* checking result */
av_log(NULL, AV_LOG_INFO,"Checking...\n");
if (do_mdct) {
switch (transform) {
case TRANSFORM_MDCT:
if (do_inverse) {
imdct_ref((float *)tab_ref, (float *)tab1, fft_nbits);
ff_imdct_calc(m, tab2, (float *)tab1);
@ -262,13 +269,15 @@ int main(int argc, char **argv)
check_diff((float *)tab_ref, tab2, fft_size / 2, scale);
}
} else {
break;
case TRANSFORM_FFT:
memcpy(tab, tab1, fft_size * sizeof(FFTComplex));
ff_fft_permute(s, tab);
ff_fft_calc(s, tab);
fft_ref(tab_ref, tab1, fft_nbits);
check_diff((float *)tab_ref, (float *)tab, fft_size * 2, 1.0);
break;
}
/* do a speed test */
@ -283,15 +292,18 @@ int main(int argc, char **argv)
for(;;) {
time_start = gettime();
for (it = 0; it < nb_its; it++) {
if (do_mdct) {
switch (transform) {
case TRANSFORM_MDCT:
if (do_inverse) {
ff_imdct_calc(m, (float *)tab, (float *)tab1);
} else {
ff_mdct_calc(m, (float *)tab, (float *)tab1);
}
} else {
break;
case TRANSFORM_FFT:
memcpy(tab, tab1, fft_size * sizeof(FFTComplex));
ff_fft_calc(s, tab);
break;
}
}
duration = gettime() - time_start;
@ -305,10 +317,13 @@ int main(int argc, char **argv)
nb_its);
}
if (do_mdct) {
switch (transform) {
case TRANSFORM_MDCT:
ff_mdct_end(m);
} else {
break;
case TRANSFORM_FFT:
ff_fft_end(s);
break;
}
return 0;
}