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dct-test: exit with non-zero status if an IDCT fails 

IDCTs are partially evaluated according to IEEE 1180-1990 (more or
less).  An override is added to the table for implementations known
to not meet the spec requirements.  These variants are run but not
checked for accuracy.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-04 00:53:39 +01:00
parent 883fd9e393
commit dbf396d497
1 changed files with 30 additions and 13 deletions
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43
libavcodec/dct-test.c
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@ -74,6 +74,7 @@ struct algo {
enum formattag { NO_PERM, MMX_PERM, MMX_SIMPLE_PERM, SCALE_PERM,
SSE2_PERM, PARTTRANS_PERM } format;
int mm_support;
int nonspec;
};
#ifndef FAAN_POSTSCALE
@ -115,13 +116,13 @@ static const struct algo idct_tab[] = {
#if HAVE_MMX
#if CONFIG_GPL
{"LIBMPEG2-MMX", ff_mmx_idct, ff_ref_idct, MMX_PERM, AV_CPU_FLAG_MMX},
{"LIBMPEG2-MMX2", ff_mmxext_idct, ff_ref_idct, MMX_PERM, AV_CPU_FLAG_MMX2},
{"LIBMPEG2-MMX", ff_mmx_idct, ff_ref_idct, MMX_PERM, AV_CPU_FLAG_MMX, 1},
{"LIBMPEG2-MMX2", ff_mmxext_idct, ff_ref_idct, MMX_PERM, AV_CPU_FLAG_MMX2, 1},
#endif
{"SIMPLE-MMX", ff_simple_idct_mmx, ff_ref_idct, MMX_SIMPLE_PERM, AV_CPU_FLAG_MMX},
{"XVID-MMX", ff_idct_xvid_mmx, ff_ref_idct, NO_PERM, AV_CPU_FLAG_MMX},
{"XVID-MMX2", ff_idct_xvid_mmx2, ff_ref_idct, NO_PERM, AV_CPU_FLAG_MMX2},
{"XVID-SSE2", ff_idct_xvid_sse2, ff_ref_idct, SSE2_PERM, AV_CPU_FLAG_SSE2},
{"XVID-MMX", ff_idct_xvid_mmx, ff_ref_idct, NO_PERM, AV_CPU_FLAG_MMX, 1},
{"XVID-MMX2", ff_idct_xvid_mmx2, ff_ref_idct, NO_PERM, AV_CPU_FLAG_MMX2, 1},
{"XVID-SSE2", ff_idct_xvid_sse2, ff_ref_idct, SSE2_PERM, AV_CPU_FLAG_SSE2, 1},
#endif
#if ARCH_BFIN
@ -200,15 +201,17 @@ static inline void mmx_emms(void)
#endif
}
static void dct_error(const struct algo *dct, int test, int is_idct, int speed)
static int dct_error(const struct algo *dct, int test, int is_idct, int speed)
{
int it, i, scale;
int err_inf, v;
int64_t err2, ti, ti1, it1;
int64_t err2, ti, ti1, it1, err_sum = 0;
int64_t sysErr[64], sysErrMax = 0;
int maxout = 0;
int blockSumErrMax = 0, blockSumErr;
AVLFG prng;
double omse, ome;
int spec_err;
av_lfg_init(&prng, 1);
@ -276,7 +279,9 @@ static void dct_error(const struct algo *dct, int test, int is_idct, int speed)
blockSumErr = 0;
for (i = 0; i < 64; i++) {
v = abs(block[i] - block1[i]);
int err = block[i] - block1[i];
err_sum += err;
v = abs(err);
if (v > err_inf)
err_inf = v;
err2 += v * v;
@ -298,13 +303,21 @@ static void dct_error(const struct algo *dct, int test, int is_idct, int speed)
}
printf("\n");
printf("%s %s: err_inf=%d err2=%0.8f syserr=%0.8f maxout=%d blockSumErr=%d\n",
omse = (double) err2 / NB_ITS / 64;
ome = (double) err_sum / NB_ITS / 64;
spec_err = is_idct && (err_inf > 1 || omse > 0.02 || fabs(ome) > 0.0015);
printf("%s %s: ppe=%d omse=%0.8f ome=%0.8f syserr=%0.8f maxout=%d blockSumErr=%d\n",
is_idct ? "IDCT" : "DCT", dct->name, err_inf,
(double) err2 / NB_ITS / 64.0, (double) sysErrMax / NB_ITS,
omse, ome, (double) sysErrMax / NB_ITS,
maxout, blockSumErrMax);
if (spec_err && !dct->nonspec)
return 1;
if (!speed)
return;
return 0;
/* speed test */
for (i = 0; i < 64; i++)
@ -355,6 +368,8 @@ static void dct_error(const struct algo *dct, int test, int is_idct, int speed)
printf("%s %s: %0.1f kdct/s\n", is_idct ? "IDCT" : "DCT", dct->name,
(double) it1 * 1000.0 / (double) ti1);
return 0;
}
DECLARE_ALIGNED(8, static uint8_t, img_dest)[64];
@ -514,6 +529,7 @@ int main(int argc, char **argv)
int c, i;
int test = 1;
int speed = 0;
int err = 0;
cpu_flags = av_get_cpu_flags();
@ -559,8 +575,9 @@ int main(int argc, char **argv)
const struct algo *algos = test_idct ? idct_tab : fdct_tab;
for (i = 0; algos[i].name; i++)
if (!(~cpu_flags & algos[i].mm_support)) {
dct_error(&algos[i], test, test_idct, speed);
err |= dct_error(&algos[i], test, test_idct, speed);
}
}
return 0;
return err;
}