/* * 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 */ #ifndef AVCODEC_AUDIODSP_H #define AVCODEC_AUDIODSP_H #include <stdint.h> typedef struct AudioDSPContext { /** * Calculate scalar product of two vectors. * @param len length of vectors, should be multiple of 16 */ int32_t (*scalarproduct_int16)(const int16_t *v1, const int16_t *v2 /* align 16 */, int len); /** * Clip each element in an array of int32_t to a given minimum and * maximum value. * @param dst destination array * constraints: 16-byte aligned * @param src source array * constraints: 16-byte aligned * @param min minimum value * constraints: must be in the range [-(1 << 24), 1 << 24] * @param max maximum value * constraints: must be in the range [-(1 << 24), 1 << 24] * @param len number of elements in the array * constraints: multiple of 32 greater than zero */ void (*vector_clip_int32)(int32_t *dst, const int32_t *src, int32_t min, int32_t max, unsigned int len); /* assume len is a multiple of 16, and arrays are 16-byte aligned */ void (*vector_clipf)(float *dst /* align 16 */, const float *src /* align 16 */, int len /* align 16 */, float min, float max); } AudioDSPContext; void ff_audiodsp_init(AudioDSPContext *c); void ff_audiodsp_init_arm(AudioDSPContext *c); void ff_audiodsp_init_ppc(AudioDSPContext *c); void ff_audiodsp_init_x86(AudioDSPContext *c); #endif /* AVCODEC_AUDIODSP_H */