/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with FFmpeg; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "libavutil/mem_internal.h" #include "libavcodec/lpc.h" #include "checkasm.h" #define randomize_int32(buf, len) \ do { \ for (int i = 0; i < len; i++) { \ int32_t f = rnd() >> 8; \ buf[i] = f; \ } \ } while (0) #define EPS 0.005 static void test_window(int len) { LOCAL_ALIGNED(16, int32_t, src, [5000]); LOCAL_ALIGNED(16, double, dst0, [5000]); LOCAL_ALIGNED(16, double, dst1, [5000]); declare_func(void, int32_t *in, int len, double *out); randomize_int32(src, len); call_ref(src, len, dst0); call_new(src, len, dst1); if (!double_near_abs_eps_array(dst0, dst1, EPS, len)) fail(); bench_new(src, len, dst1); } void checkasm_check_lpc(void) { LPCContext ctx; ff_lpc_init(&ctx, 32, 16, FF_LPC_TYPE_DEFAULT); if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_even")) { for (int i = 0; i < 64; i += 2) test_window(i); } report("apply_welch_window_even"); if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_odd")) { for (int i = 1; i < 64; i += 2) test_window(i); } report("apply_welch_window_odd"); if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_4096")) test_window(4096); report("apply_welch_window_4096"); if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_4097")) test_window(4097); report("apply_welch_window_4097"); ff_lpc_end(&ctx); }