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ffmpeg-4.2.2/libavcodec/arm/audiodsp_init_neon.c 1.47 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * ARM NEON optimised audio functions
   * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
   *
   * 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
   */
  
  #include <stdint.h>
  
  #include "libavutil/attributes.h"
  #include "libavcodec/audiodsp.h"
  #include "audiodsp_arm.h"
  
  void ff_vector_clipf_neon(float *dst, const float *src, int len, float min, float max);
  void ff_vector_clip_int32_neon(int32_t *dst, const int32_t *src, int32_t min,
                                 int32_t max, unsigned int len);
  
  int32_t ff_scalarproduct_int16_neon(const int16_t *v1, const int16_t *v2, int len);
  
  av_cold void ff_audiodsp_init_neon(AudioDSPContext *c)
  {
      c->vector_clip_int32 = ff_vector_clip_int32_neon;
      c->vector_clipf      = ff_vector_clipf_neon;
  
      c->scalarproduct_int16 = ff_scalarproduct_int16_neon;
  }