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ffmpeg-4.2.2/libavcodec/aarch64/mpegaudiodsp_init.c 1.49 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * 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 <stddef.h>
  #include <stdint.h>
  
  #include "libavutil/attributes.h"
  #include "libavutil/aarch64/cpu.h"
  #include "libavcodec/mpegaudiodsp.h"
  #include "config.h"
  
  void ff_mpadsp_apply_window_fixed_neon(int32_t *synth_buf, int32_t *window,
                                         int *dither, int16_t *samples, ptrdiff_t incr);
  void ff_mpadsp_apply_window_float_neon(float *synth_buf, float *window,
                                         int *dither, float *samples, ptrdiff_t incr);
  
  av_cold void ff_mpadsp_init_aarch64(MPADSPContext *s)
  {
      int cpu_flags = av_get_cpu_flags();
  
      if (have_neon(cpu_flags)) {
          s->apply_window_fixed = ff_mpadsp_apply_window_fixed_neon;
          s->apply_window_float = ff_mpadsp_apply_window_float_neon;
      }
  }