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  1. /*
  2.  * This file is part of FFmpeg.
  3.  *
  4.  * FFmpeg is free software; you can redistribute it and/or
  5.  * modify it under the terms of the GNU Lesser General Public
  6.  * License as published by the Free Software Foundation; either
  7.  * version 2.1 of the License, or (at your option) any later version.
  8.  *
  9.  * FFmpeg is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12.  * Lesser General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU Lesser General Public
  15.  * License along with FFmpeg; if not, write to the Free Software
  16.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17.  */
  18.  
  19. #include <stdint.h>
  20.  
  21. #include "libavutil/attributes.h"
  22. #include "libavutil/aarch64/cpu.h"
  23. #include "libavcodec/mpegaudiodsp.h"
  24. #include "config.h"
  25.  
  26. void ff_mpadsp_apply_window_fixed_neon(int32_t *synth_buf, int32_t *window,
  27.                                        int *dither, int16_t *samples, int incr);
  28. void ff_mpadsp_apply_window_float_neon(float *synth_buf, float *window,
  29.                                        int *dither, float *samples, int incr);
  30.  
  31. av_cold void ff_mpadsp_init_aarch64(MPADSPContext *s)
  32. {
  33.     int cpu_flags = av_get_cpu_flags();
  34.  
  35.     if (have_neon(cpu_flags)) {
  36.         s->apply_window_fixed = ff_mpadsp_apply_window_fixed_neon;
  37.         s->apply_window_float = ff_mpadsp_apply_window_float_neon;
  38.     }
  39. }
  40.