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checkasm/lpc: test compute_autocorr

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Rémi Denis-Courmont 2024-05-31 20:51:14 +03:00 committed by James Almer
parent 9238f6cb41
commit 16132a810d
1 changed files with 51 additions and 2 deletions
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53
tests/checkasm/lpc.c
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@ -16,6 +16,7 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "libavutil/avassert.h"
#include "libavutil/mem_internal.h"
#include "libavcodec/lpc.h"
@ -57,10 +58,47 @@ static void test_window(int len)
bench_new(src, len, dst1);
}
static void test_compute_autocorr(ptrdiff_t len, int lag)
{
const double eps = EPS * (double)len;
LOCAL_ALIGNED(32, double, src, [5000 + 2 + MAX_LPC_ORDER]);
LOCAL_ALIGNED(16, double, dst0, [MAX_LPC_ORDER + 1]);
LOCAL_ALIGNED(16, double, dst1, [MAX_LPC_ORDER + 1]);
declare_func(void, const double *in, ptrdiff_t len, int lag, double *out);
av_assert0(lag >= 0 && lag <= MAX_LPC_ORDER);
for (int i = 0; i < MAX_LPC_ORDER; i++)
src[i] = 0.;
src += MAX_LPC_ORDER;
for (int i = 0; i < 5000 + 2; i++) {
src[i] = (double)rnd() / (double)UINT_MAX;
}
call_ref(src, len, lag, dst0);
call_new(src, len, lag, dst1);
for (size_t i = 0; i <= lag; i++) {
if (!double_near_abs_eps(dst0[i], dst1[i], eps)) {
fprintf(stderr, "%zu: %- .12f - %- .12f = % .12g\n",
i, dst0[i], dst1[i], dst0[i] - dst1[i]);
fail();
break;
}
}
bench_new(src, 4608 + (len & 1), lag, dst1);
}
void checkasm_check_lpc(void)
{
LPCContext ctx;
int len = rnd() % 5000;
int len = 2000 + rnd() % 3000;
static const int lags[] = { 8, 12, };
ff_lpc_init(&ctx, 32, 16, FF_LPC_TYPE_DEFAULT);
if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_even")) {
@ -72,6 +110,17 @@ void checkasm_check_lpc(void)
test_window(len | 1);
}
report("apply_welch_window_odd");
ff_lpc_end(&ctx);
for (size_t i = 0; i < FF_ARRAY_ELEMS(lags); i++) {
ff_lpc_init(&ctx, len, lags[i], FF_LPC_TYPE_DEFAULT);
if (check_func(ctx.lpc_compute_autocorr, "autocorr_%d_even", lags[i]))
test_compute_autocorr(len & ~1, lags[i]);
#if !ARCH_X86
if (check_func(ctx.lpc_compute_autocorr, "autocorr_%d_odd", lags[i]))
test_compute_autocorr(len | 1, lags[i]);
#endif
ff_lpc_end(&ctx);
}
report("compute_autocorr");
}