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70 lines
2.5 KiB
70 lines
2.5 KiB
/* |
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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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#ifndef AVUTIL_FLOAT_DSP_H |
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#define AVUTIL_FLOAT_DSP_H |
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typedef struct AVFloatDSPContext { |
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/** |
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* Calculate the product of two vectors of floats and store the result in |
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* a vector of floats. |
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* |
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* @param dst output vector |
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* constraints: 32-byte aligned |
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* @param src0 first input vector |
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* constraints: 32-byte aligned |
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* @param src1 second input vector |
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* constraints: 32-byte aligned |
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* @param len number of elements in the input |
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* constraints: multiple of 16 |
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*/ |
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void (*vector_fmul)(float *dst, const float *src0, const float *src1, |
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int len); |
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/** |
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* Multiply a vector of floats by a scalar float and add to |
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* destination vector. Source and destination vectors must |
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* overlap exactly or not at all. |
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* |
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* @param dst result vector |
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* constraints: 32-byte aligned |
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* @param src input vector |
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* constraints: 32-byte aligned |
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* @param mul scalar value |
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* @param len length of vector |
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* constraints: multiple of 16 |
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*/ |
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void (*vector_fmac_scalar)(float *dst, const float *src, float mul, |
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int len); |
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} AVFloatDSPContext; |
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/** |
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* Initialize a float DSP context. |
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* |
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* @param fdsp float DSP context |
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* @param strict setting to non-zero avoids using functions which may not be IEEE-754 compliant |
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*/ |
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void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int strict); |
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void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp); |
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void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int strict); |
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void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp); |
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void ff_float_dsp_init_mips(AVFloatDSPContext *fdsp); |
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#endif /* AVUTIL_FLOAT_DSP_H */
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