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/* |
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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 |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (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 GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/libm.h" |
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#include "libavcodec/celp_math.c" |
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static inline void IsAlmostEqual(float A, float B, float epsilon) |
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{ |
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float diff = fabsf(A - B); |
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float absa = fabsf(A); |
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float absb = fabsf(B); |
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✗✓ |
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float largest = (absb > absa) ? absb : absa; |
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✗✓ |
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av_assert0(diff <= largest * epsilon); |
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} |
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int main(void) |
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{ |
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int i; |
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const float f1[3] = {0.0, 1.1, 2.2}; |
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const float f2[3] = {3.3, 4.4, 5.5}; |
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const int16_t i1[3] = {6, 7, 8}; |
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const int16_t i2[3] = {9, 10, 11}; |
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float r = ff_dot_productf(f1, f2, FF_ARRAY_ELEMS(f1)); |
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int64_t d = ff_dot_product(i1, i2, FF_ARRAY_ELEMS(i1)); |
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IsAlmostEqual(16.94f, r, 0.000001f); |
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av_assert0(212 == d); |
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✓✓ |
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for (i = 1024; i >= 1; i/=2) |
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✗✓ |
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av_assert0(ff_log2_q15(i) == (1<<15)*((int)log2(i))+(1<<2)); |
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return 0; |
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} |