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1  /*
2   * This file is part of FFmpeg.
3   *
4   * FFmpeg is free software; you can redistribute it and/or
5   * modify it under the terms of the GNU Lesser General Public
6   * License as published by the Free Software Foundation; either
7   * version 2.1 of the License, or (at your option) any later version.
8   *
9   * FFmpeg is distributed in the hope that it will be useful,
10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   * Lesser General Public License for more details.
13   *
14   * You should have received a copy of the GNU Lesser General Public
15   * License along with FFmpeg; if not, write to the Free Software
16   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17   */
18  
19  #include "libavutil/attributes.h"
20  #include "libavutil/cpu.h"
21  #include "libavutil/x86/cpu.h"
22  #include "libavcodec/dcadsp.h"
23  
24  #define LFE_FIR_FLOAT_FUNC(opt)                                               \
25  void ff_lfe_fir0_float_##opt(float *pcm_samples, int32_t *lfe_samples,         \
26                               const float *filter_coeff, ptrdiff_t npcmblocks); \
27  void ff_lfe_fir1_float_##opt(float *pcm_samples, int32_t *lfe_samples,         \
28                               const float *filter_coeff, ptrdiff_t npcmblocks);
29  
30  LFE_FIR_FLOAT_FUNC(sse2)
LFE_FIR_FLOAT_FUNC(sse3)31  LFE_FIR_FLOAT_FUNC(sse3)
32  LFE_FIR_FLOAT_FUNC(avx)
33  LFE_FIR_FLOAT_FUNC(fma3)
34  
35  av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
36  {
37      int cpu_flags = av_get_cpu_flags();
38  
39      if (EXTERNAL_SSE2(cpu_flags))
40          s->lfe_fir_float[0] = ff_lfe_fir0_float_sse2;
41      if (EXTERNAL_SSE3(cpu_flags))
42          s->lfe_fir_float[1] = ff_lfe_fir1_float_sse3;
43      if (EXTERNAL_AVX(cpu_flags)) {
44          s->lfe_fir_float[0] = ff_lfe_fir0_float_avx;
45          s->lfe_fir_float[1] = ff_lfe_fir1_float_avx;
46      }
47      if (EXTERNAL_FMA3(cpu_flags))
48          s->lfe_fir_float[0] = ff_lfe_fir0_float_fma3;
49  }
50