1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#include "libavutil/libm.h"
20#include "libavcodec/celp_math.c"
21
22static inline void IsAlmostEqual(float A, float B, float epsilon)
23{
24    float diff = fabsf(A - B);
25    float absa = fabsf(A);
26    float absb = fabsf(B);
27    float largest = (absb > absa) ? absb : absa;
28    av_assert0(diff <= largest * epsilon);
29}
30
31int main(void)
32{
33    int i;
34    const float f1[3]   = {0.0,  1.1,  2.2};
35    const float f2[3]   = {3.3,  4.4,  5.5};
36    const int16_t i1[3] = {6,  7,  8};
37    const int16_t i2[3] = {9, 10, 11};
38
39    float   r = ff_dot_productf(f1, f2, FF_ARRAY_ELEMS(f1));
40    int64_t d = ff_dot_product(i1, i2, FF_ARRAY_ELEMS(i1));
41
42    IsAlmostEqual(16.94f, r, 0.000001f);
43    av_assert0(212 == d);
44
45    for (i = 1024; i >= 1; i/=2)
46        av_assert0(ff_log2_q15(i) == (1<<15)*((int)log2(i))+(1<<2));
47
48    return 0;
49}
50