Le maanantaina 11. joulukuuta 2023, 22.41.03 EET Rémi Denis-Courmont a écrit :
> ---
> tests/checkasm/lpc.c | 36 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 36 insertions(+)
>
> diff --git a/tests/checkasm/lpc.c b/tests/checkasm/lpc.c
> index 592e34c03d..8e92a9e1b4 100644
> --- a/tests/checkasm/lpc.c
> +++ b/tests/checkasm/lpc.c
> @@ -57,10 +57,40 @@ static void test_window(int len)
> bench_new(src, len, dst1);
> }
>
> +static void test_compute_autocorr(int lag)
> +{
> + LOCAL_ALIGNED(16, double, src, [5000]);
> + LOCAL_ALIGNED(16, double, dst0, [32]);
> + LOCAL_ALIGNED(16, double, dst1, [32]);
> + const size_t len = 5000;
> +
> + declare_func(void, const double *in, ptrdiff_t len, int lag, double
> *out); +
> + for (size_t i = 0; i < len; i++) {
> + src[i] = (double)rnd() / (double)UINT_MAX;
Not sure if we should test negative numbers here.
> + }
> +
> + call_ref(src, len, lag, dst0);
> + call_new(src, len, lag, dst1);
Presumably src needs to be offset by one element, as the first iteration of the
loop reads at offset minus one (in C code: sum1 += ...).
> +
> + 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, len, lag, dst1);
> +}
> +
> void checkasm_check_lpc(void)
> {
> LPCContext ctx;
> int len = rnd() % 5000;
> + static const int lags[] = { 10, 30, 32 };
> +
> ff_lpc_init(&ctx, 32, 16, FF_LPC_TYPE_DEFAULT);
>
> if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_even"))
> { @@ -73,5 +103,11 @@ void checkasm_check_lpc(void)
> }
> report("apply_welch_window_odd");
>
> + for (size_t i = 0; i < FF_ARRAY_ELEMS(lags); i++) {
> + if (check_func(ctx.lpc_compute_autocorr, "autocorr_%d", lags[i]))
> + test_compute_autocorr(lags[i]);
> + report("compute_autocorr_%d", lags[i]);
> + }
> +
> ff_lpc_end(&ctx);
> }
--
雷米‧德尼-库尔蒙
http://www.remlab.net/
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