1cabdff1aSopenharmony_ci/* 2cabdff1aSopenharmony_ci * This file is part of FFmpeg. 3cabdff1aSopenharmony_ci * 4cabdff1aSopenharmony_ci * FFmpeg is free software; you can redistribute it and/or 5cabdff1aSopenharmony_ci * modify it under the terms of the GNU Lesser General Public 6cabdff1aSopenharmony_ci * License as published by the Free Software Foundation; either 7cabdff1aSopenharmony_ci * version 2.1 of the License, or (at your option) any later version. 8cabdff1aSopenharmony_ci * 9cabdff1aSopenharmony_ci * FFmpeg is distributed in the hope that it will be useful, 10cabdff1aSopenharmony_ci * but WITHOUT ANY WARRANTY; without even the implied warranty of 11cabdff1aSopenharmony_ci * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12cabdff1aSopenharmony_ci * Lesser General Public License for more details. 13cabdff1aSopenharmony_ci * 14cabdff1aSopenharmony_ci * You should have received a copy of the GNU Lesser General Public 15cabdff1aSopenharmony_ci * License along with FFmpeg; if not, write to the Free Software 16cabdff1aSopenharmony_ci * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17cabdff1aSopenharmony_ci */ 18cabdff1aSopenharmony_ci 19cabdff1aSopenharmony_ci#ifndef AVCODEC_AUDIODSP_H 20cabdff1aSopenharmony_ci#define AVCODEC_AUDIODSP_H 21cabdff1aSopenharmony_ci 22cabdff1aSopenharmony_ci#include <stdint.h> 23cabdff1aSopenharmony_ci 24cabdff1aSopenharmony_citypedef struct AudioDSPContext { 25cabdff1aSopenharmony_ci /** 26cabdff1aSopenharmony_ci * Calculate scalar product of two vectors. 27cabdff1aSopenharmony_ci * @param len length of vectors, should be multiple of 16 28cabdff1aSopenharmony_ci */ 29cabdff1aSopenharmony_ci int32_t (*scalarproduct_int16)(const int16_t *v1, 30cabdff1aSopenharmony_ci const int16_t *v2 /* align 16 */, int len); 31cabdff1aSopenharmony_ci 32cabdff1aSopenharmony_ci /** 33cabdff1aSopenharmony_ci * Clip each element in an array of int32_t to a given minimum and 34cabdff1aSopenharmony_ci * maximum value. 35cabdff1aSopenharmony_ci * @param dst destination array 36cabdff1aSopenharmony_ci * constraints: 16-byte aligned 37cabdff1aSopenharmony_ci * @param src source array 38cabdff1aSopenharmony_ci * constraints: 16-byte aligned 39cabdff1aSopenharmony_ci * @param min minimum value 40cabdff1aSopenharmony_ci * constraints: must be in the range [-(1 << 24), 1 << 24] 41cabdff1aSopenharmony_ci * @param max maximum value 42cabdff1aSopenharmony_ci * constraints: must be in the range [-(1 << 24), 1 << 24] 43cabdff1aSopenharmony_ci * @param len number of elements in the array 44cabdff1aSopenharmony_ci * constraints: multiple of 32 greater than zero 45cabdff1aSopenharmony_ci */ 46cabdff1aSopenharmony_ci void (*vector_clip_int32)(int32_t *dst, const int32_t *src, int32_t min, 47cabdff1aSopenharmony_ci int32_t max, unsigned int len); 48cabdff1aSopenharmony_ci /* assume len is a multiple of 16, and arrays are 16-byte aligned */ 49cabdff1aSopenharmony_ci void (*vector_clipf)(float *dst /* align 16 */, 50cabdff1aSopenharmony_ci const float *src /* align 16 */, 51cabdff1aSopenharmony_ci int len /* align 16 */, 52cabdff1aSopenharmony_ci float min, float max); 53cabdff1aSopenharmony_ci} AudioDSPContext; 54cabdff1aSopenharmony_ci 55cabdff1aSopenharmony_civoid ff_audiodsp_init(AudioDSPContext *c); 56cabdff1aSopenharmony_civoid ff_audiodsp_init_arm(AudioDSPContext *c); 57cabdff1aSopenharmony_civoid ff_audiodsp_init_ppc(AudioDSPContext *c); 58cabdff1aSopenharmony_civoid ff_audiodsp_init_x86(AudioDSPContext *c); 59cabdff1aSopenharmony_ci 60cabdff1aSopenharmony_ci#endif /* AVCODEC_AUDIODSP_H */ 61