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  1. /*
  2.  * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
  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/dcadsp.h"
  26.  
  27. void ff_dca_lfe_fir0_neon(float *out, const float *in, const float *coefs);
  28. void ff_dca_lfe_fir1_neon(float *out, const float *in, const float *coefs);
  29.  
  30. void ff_dca_lfe_fir32_vfp(float *out, const float *in, const float *coefs);
  31. void ff_dca_lfe_fir64_vfp(float *out, const float *in, const float *coefs);
  32.  
  33. void ff_dca_qmf_32_subbands_vfp(float samples_in[32][8], int sb_act,
  34.                                 SynthFilterContext *synth, FFTContext *imdct,
  35.                                 float synth_buf_ptr[512],
  36.                                 int *synth_buf_offset, float synth_buf2[32],
  37.                                 const float window[512], float *samples_out,
  38.                                 float raXin[32], float scale);
  39.  
  40. void ff_synth_filter_float_vfp(FFTContext *imdct,
  41.                                float *synth_buf_ptr, int *synth_buf_offset,
  42.                                float synth_buf2[32], const float window[512],
  43.                                float out[32], const float in[32],
  44.                                float scale);
  45.  
  46. void ff_synth_filter_float_neon(FFTContext *imdct,
  47.                                 float *synth_buf_ptr, int *synth_buf_offset,
  48.                                 float synth_buf2[32], const float window[512],
  49.                                 float out[32], const float in[32],
  50.                                 float scale);
  51.  
  52. void ff_decode_hf_neon(float dst[DCA_SUBBANDS][8],
  53.                        const int32_t vq_num[DCA_SUBBANDS],
  54.                        const int8_t hf_vq[1024][32], intptr_t vq_offset,
  55.                        int32_t scale[DCA_SUBBANDS][2],
  56.                        intptr_t start, intptr_t end);
  57.  
  58. av_cold void ff_dcadsp_init_arm(DCADSPContext *s)
  59. {
  60.     int cpu_flags = av_get_cpu_flags();
  61.  
  62.     if (have_vfp(cpu_flags) && !have_vfpv3(cpu_flags)) {
  63.         s->lfe_fir[0]      = ff_dca_lfe_fir32_vfp;
  64.         s->lfe_fir[1]      = ff_dca_lfe_fir64_vfp;
  65.         s->qmf_32_subbands = ff_dca_qmf_32_subbands_vfp;
  66.     }
  67.     if (have_neon(cpu_flags)) {
  68.         s->lfe_fir[0] = ff_dca_lfe_fir0_neon;
  69.         s->lfe_fir[1] = ff_dca_lfe_fir1_neon;
  70.         s->decode_hf  = ff_decode_hf_neon;
  71.     }
  72. }
  73.  
  74. av_cold void ff_synth_filter_init_arm(SynthFilterContext *s)
  75. {
  76.     int cpu_flags = av_get_cpu_flags();
  77.  
  78.     if (have_vfp(cpu_flags) && !have_vfpv3(cpu_flags))
  79.         s->synth_filter_float = ff_synth_filter_float_vfp;
  80.     if (have_neon(cpu_flags))
  81.         s->synth_filter_float = ff_synth_filter_float_neon;
  82. }
  83.