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  1. /*
  2.  * Copyright (c) 2012 Mans Rullgard
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #include "config.h"
  22.  
  23. #include "libavutil/arm/cpu.h"
  24. #include "libavutil/attributes.h"
  25. #include "libavcodec/aacpsdsp.h"
  26.  
  27. void ff_ps_add_squares_neon(float *dst, const float (*src)[2], int n);
  28. void ff_ps_mul_pair_single_neon(float (*dst)[2], float (*src0)[2],
  29.                                 float *src1, int n);
  30. void ff_ps_hybrid_analysis_neon(float (*out)[2], float (*in)[2],
  31.                                 const float (*filter)[8][2],
  32.                                 int stride, int n);
  33. void ff_ps_hybrid_analysis_ileave_neon(float (*out)[32][2], float L[2][38][64],
  34.                                        int i, int len);
  35. void ff_ps_hybrid_synthesis_deint_neon(float out[2][38][64], float (*in)[32][2],
  36.                                        int i, int len);
  37. void ff_ps_decorrelate_neon(float (*out)[2], float (*delay)[2],
  38.                             float (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
  39.                             const float phi_fract[2], float (*Q_fract)[2],
  40.                             const float *transient_gain, float g_decay_slope,
  41.                             int len);
  42. void ff_ps_stereo_interpolate_neon(float (*l)[2], float (*r)[2],
  43.                                    float h[2][4], float h_step[2][4],
  44.                                    int len);
  45.  
  46. av_cold void ff_psdsp_init_arm(PSDSPContext *s)
  47. {
  48.     int cpu_flags = av_get_cpu_flags();
  49.  
  50.     if (have_neon(cpu_flags)) {
  51.         s->add_squares            = ff_ps_add_squares_neon;
  52.         s->mul_pair_single        = ff_ps_mul_pair_single_neon;
  53.         s->hybrid_synthesis_deint = ff_ps_hybrid_synthesis_deint_neon;
  54.         s->hybrid_analysis        = ff_ps_hybrid_analysis_neon;
  55.         s->stereo_interpolate[0]  = ff_ps_stereo_interpolate_neon;
  56.     }
  57. }
  58.