mirror of
https://github.com/FFmpeg/FFmpeg.git
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78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "libavutil/mem_internal.h"
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#include "libavcodec/lpc.h"
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#include "checkasm.h"
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#define randomize_int32(buf, len) \
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do { \
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for (int i = 0; i < len; i++) { \
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int32_t f = ((int)(UINT32_MAX >> 17)) - ((int)(rnd() >> 16)); \
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buf[i] = f; \
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} \
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} while (0)
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#define EPS 0.005
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static void test_window(int len)
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{
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LOCAL_ALIGNED(16, int32_t, src, [5000]);
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LOCAL_ALIGNED(16, double, dst0, [5000]);
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LOCAL_ALIGNED(16, double, dst1, [5000]);
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declare_func(void, const int32_t *in, ptrdiff_t len, double *out);
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randomize_int32(src, len);
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call_ref(src, len, dst0);
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call_new(src, len, dst1);
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for (int i = 0; i < len; i++) {
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if (!double_near_abs_eps(dst0[i], dst1[i], EPS)) {
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fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
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i, dst0[i], dst1[i], dst0[i] - dst1[i]);
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fail();
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break;
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}
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}
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bench_new(src, len, dst1);
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}
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void checkasm_check_lpc(void)
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{
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LPCContext ctx;
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int len = rnd() % 5000;
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ff_lpc_init(&ctx, 32, 16, FF_LPC_TYPE_DEFAULT);
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if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_even")) {
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test_window(len & ~1);
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}
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report("apply_welch_window_even");
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if (check_func(ctx.lpc_apply_welch_window, "apply_welch_window_odd")) {
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test_window(len | 1);
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}
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report("apply_welch_window_odd");
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ff_lpc_end(&ctx);
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}
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