libavcodec/x86/sbrdsp_init.c

   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 Libav.
   6  *
   7  * Libav 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  * Libav 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 Libav; 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_sse2(float *v, const float *src0, const float *src1);
  38 void ff_sbr_qmf_pre_shuffle_sse2(float *z);
  39
  40 av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
  41 {
  42     int cpu_flags = av_get_cpu_flags();
  43
  44     if (EXTERNAL_SSE(cpu_flags)) {
  45         s->neg_odd_64 = ff_sbr_neg_odd_64_sse;
  46         s->sum_square = ff_sbr_sum_square_sse;
  47         s->sum64x5    = ff_sbr_sum64x5_sse;
  48         s->hf_g_filt  = ff_sbr_hf_g_filt_sse;
  49         s->hf_gen     = ff_sbr_hf_gen_sse;
  50         s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;
  51     }
  52
  53     if (EXTERNAL_SSE2(cpu_flags)) {
  54         s->qmf_deint_bfly   = ff_sbr_qmf_deint_bfly_sse2;
  55         s->qmf_pre_shuffle  = ff_sbr_qmf_pre_shuffle_sse2;
  56     }
  57 }