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https://github.com/FFmpeg/FFmpeg.git
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f58bda642d
As the values generated by av_bmg_get can be arbitrarily large
(only the stddev is specified), we can't use a fixed tolerance.
Calculate a dynamic tolerance (like in float_dsp from 38f966b222),
based on the individual steps of the calculation.
This fixes running this test with certain seeds, when built with
clang for mingw/x86_32.
Signed-off-by: Martin Storsjö <martin@martin.st>
96 lines
3.1 KiB
C
96 lines
3.1 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 "config.h"
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#include <float.h>
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#include <stdint.h>
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#include "libavfilter/af_afir.h"
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#include "libavutil/internal.h"
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#include "checkasm.h"
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#define LEN 256
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#define randomize_buffer(buf) \
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do { \
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int i; \
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double bmg[2], stddev = 10.0, mean = 0.0; \
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\
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for (i = 0; i < LEN*2+8; i += 2) { \
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av_bmg_get(&checkasm_lfg, bmg); \
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buf[i] = bmg[0] * stddev + mean; \
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buf[i + 1] = bmg[1] * stddev + mean; \
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} \
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} while(0);
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static void test_fcmul_add(const float *src0, const float *src1, const float *src2)
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{
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LOCAL_ALIGNED_32(float, cdst, [LEN*2+8]);
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LOCAL_ALIGNED_32(float, odst, [LEN*2+8]);
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int i;
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declare_func(void, float *sum, const float *t, const float *c,
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ptrdiff_t len);
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memcpy(cdst, src0, (LEN*2+8) * sizeof(float));
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memcpy(odst, src0, (LEN*2+8) * sizeof(float));
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call_ref(cdst, src1, src2, LEN);
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call_new(odst, src1, src2, LEN);
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for (i = 0; i <= LEN*2; i++) {
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int idx = i & ~1;
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float cre = src2[idx];
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float cim = src2[idx + 1];
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float tre = src1[idx];
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float tim = src1[idx + 1];
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double t = fabs(src0[i]) +
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fabs(tre) + fabs(tim) + fabs(cre) + fabs(cim) +
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fabs(tre * cre) + fabs(tim * cim) +
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fabs(tre * cim) + fabs(tim * cre) +
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fabs(tre * cre - tim * cim) +
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fabs(tre * cim + tim * cre) +
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fabs(cdst[i]) + 1.0;
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if (!float_near_abs_eps(cdst[i], odst[i], t * 2 * FLT_EPSILON)) {
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fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
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i, cdst[i], odst[i], cdst[i] - odst[i]);
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fail();
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break;
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}
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}
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memcpy(odst, src0, (LEN*2+8) * sizeof(float));
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bench_new(odst, src1, src2, LEN);
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}
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void checkasm_check_afir(void)
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{
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LOCAL_ALIGNED_32(float, src0, [LEN*2+8]);
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LOCAL_ALIGNED_32(float, src1, [LEN*2+8]);
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LOCAL_ALIGNED_32(float, src2, [LEN*2+8]);
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AudioFIRDSPContext fir = { 0 };
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ff_afir_init(&fir);
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randomize_buffer(src0);
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randomize_buffer(src1);
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randomize_buffer(src2);
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if (check_func(fir.fcmul_add, "fcmul_add"))
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test_fcmul_add(src0, src1, src2);
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report("fcmul_add");
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}
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