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  1. /*
  2.  * AAC Spectral Band Replication decoding functions
  3.  * Copyright (c) 2012 Christophe Gisquet <christophe.gisquet@gmail.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 "config.h"
  23. #include "libavutil/attributes.h"
  24. #include "libavutil/cpu.h"
  25. #include "libavutil/x86/cpu.h"
  26. #include "libavcodec/sbrdsp.h"
  27.  
  28. float ff_sbr_sum_square_sse(float (*x)[2], int n);
  29. void ff_sbr_sum64x5_sse(float *z);
  30. void ff_sbr_hf_g_filt_sse(float (*Y)[2], const float (*X_high)[40][2],
  31.                           const float *g_filt, int m_max, intptr_t ixh);
  32. void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
  33.                        const float alpha0[2], const float alpha1[2],
  34.                        float bw, int start, int end);
  35. void ff_sbr_neg_odd_64_sse(float *z);
  36. void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
  37. void ff_sbr_qmf_deint_bfly_sse(float *v, const float *src0, const float *src1);
  38. void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1);
  39. void ff_sbr_qmf_pre_shuffle_sse2(float *z);
  40.  
  41. void ff_sbr_hf_apply_noise_0_sse2(float (*Y)[2], const float *s_m,
  42.                                   const float *q_filt, int noise,
  43.                                   int kx, int m_max);
  44. void ff_sbr_hf_apply_noise_1_sse2(float (*Y)[2], const float *s_m,
  45.                                   const float *q_filt, int noise,
  46.                                   int kx, int m_max);
  47. void ff_sbr_hf_apply_noise_2_sse2(float (*Y)[2], const float *s_m,
  48.                                   const float *q_filt, int noise,
  49.                                   int kx, int m_max);
  50. void ff_sbr_hf_apply_noise_3_sse2(float (*Y)[2], const float *s_m,
  51.                                   const float *q_filt, int noise,
  52.                                   int kx, int m_max);
  53.  
  54. av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
  55. {
  56.     int cpu_flags = av_get_cpu_flags();
  57.  
  58.     if (EXTERNAL_SSE(cpu_flags)) {
  59.         s->neg_odd_64 = ff_sbr_neg_odd_64_sse;
  60.         s->sum_square = ff_sbr_sum_square_sse;
  61.         s->sum64x5    = ff_sbr_sum64x5_sse;
  62.         s->hf_g_filt  = ff_sbr_hf_g_filt_sse;
  63.         s->hf_gen     = ff_sbr_hf_gen_sse;
  64.         s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;
  65.         s->qmf_deint_bfly   = ff_sbr_qmf_deint_bfly_sse;
  66.     }
  67.  
  68.     if (EXTERNAL_SSE2(cpu_flags)) {
  69.         s->qmf_deint_bfly   = ff_sbr_qmf_deint_bfly_sse2;
  70.         s->qmf_pre_shuffle  = ff_sbr_qmf_pre_shuffle_sse2;
  71.         s->hf_apply_noise[0] = ff_sbr_hf_apply_noise_0_sse2;
  72.         s->hf_apply_noise[1] = ff_sbr_hf_apply_noise_1_sse2;
  73.         s->hf_apply_noise[2] = ff_sbr_hf_apply_noise_2_sse2;
  74.         s->hf_apply_noise[3] = ff_sbr_hf_apply_noise_3_sse2;
  75.     }
  76. }
  77.