aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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/libm.h"
#include "libavcodec/celp_math.c"
static inline void IsAlmostEqual(float A, float B, float epsilon)
{
float diff = fabsf(A - B);
float absa = fabsf(A);
float absb = fabsf(B);
float largest = (absb > absa) ? absb : absa;
av_assert0(diff <= largest * epsilon);
}
int main(void)
{
int i;
const float f1[3] = {0.0, 1.1, 2.2};
const float f2[3] = {3.3, 4.4, 5.5};
const int16_t i1[3] = {6, 7, 8};
const int16_t i2[3] = {9, 10, 11};
float r = ff_dot_productf(f1, f2, FF_ARRAY_ELEMS(f1));
int64_t d = ff_dot_product(i1, i2, FF_ARRAY_ELEMS(i1));
IsAlmostEqual(16.94f, r, 0.000001f);
av_assert0(212 == d);
for (i = 1024; i >= 1; i/=2)
av_assert0(ff_log2_q15(i) == (1<<15)*((int)log2(i))+(1<<2));
return 0;
}
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