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  1. /*
  2.  * ARM NEON optimised DSP functions
  3.  * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. #include "libavutil/attributes.h"
  23. #include "libavutil/cpu.h"
  24. #include "libavutil/arm/cpu.h"
  25. #include "libavcodec/vorbisdsp.h"
  26.  
  27. void ff_vorbis_inverse_coupling_neon(float *mag, float *ang,
  28.                                      intptr_t blocksize);
  29.  
  30. av_cold void ff_vorbisdsp_init_arm(VorbisDSPContext *c)
  31. {
  32.     int cpu_flags = av_get_cpu_flags();
  33.  
  34.     if (have_neon(cpu_flags)) {
  35.         c->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_neon;
  36.     }
  37. }
  38.