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  1. /*
  2.  * Copyright (c) 2014 James Almer
  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 "libavcodec/flacdsp.h"
  22. #include "libavutil/x86/cpu.h"
  23. #include "config.h"
  24.  
  25. void ff_flac_lpc_32_sse4(int32_t *samples, const int coeffs[32], int order,
  26.                          int qlevel, int len);
  27. void ff_flac_lpc_32_xop(int32_t *samples, const int coeffs[32], int order,
  28.                         int qlevel, int len);
  29.  
  30. void ff_flac_enc_lpc_16_sse4(int32_t *, const int32_t *, int, int, const int32_t *,int);
  31.  
  32. #define DECORRELATE_FUNCS(fmt, opt)                                                      \
  33. void ff_flac_decorrelate_ls_##fmt##_##opt(uint8_t **out, int32_t **in, int channels,     \
  34.                                           int len, int shift);                           \
  35. void ff_flac_decorrelate_rs_##fmt##_##opt(uint8_t **out, int32_t **in, int channels,     \
  36.                                           int len, int shift);                           \
  37. void ff_flac_decorrelate_ms_##fmt##_##opt(uint8_t **out, int32_t **in, int channels,     \
  38.                                           int len, int shift);                           \
  39. void ff_flac_decorrelate_indep2_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
  40.                                              int len, int shift);                        \
  41. void ff_flac_decorrelate_indep4_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
  42.                                               int len, int shift);                       \
  43. void ff_flac_decorrelate_indep6_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
  44.                                               int len, int shift);                       \
  45. void ff_flac_decorrelate_indep8_##fmt##_##opt(uint8_t **out, int32_t **in, int channels, \
  46.                                               int len, int shift)
  47.  
  48. DECORRELATE_FUNCS(16, sse2);
  49. DECORRELATE_FUNCS(16,  avx);
  50. DECORRELATE_FUNCS(32, sse2);
  51. DECORRELATE_FUNCS(32,  avx);
  52.  
  53. av_cold void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels,
  54.                                  int bps)
  55. {
  56. #if HAVE_YASM
  57.     int cpu_flags = av_get_cpu_flags();
  58.  
  59. #if CONFIG_FLAC_DECODER
  60.     if (EXTERNAL_SSE2(cpu_flags)) {
  61.         if (fmt == AV_SAMPLE_FMT_S16) {
  62.             if (channels == 2)
  63.                 c->decorrelate[0] = ff_flac_decorrelate_indep2_16_sse2;
  64.             else if (channels == 4)
  65.                 c->decorrelate[0] = ff_flac_decorrelate_indep4_16_sse2;
  66.             else if (channels == 6)
  67.                 c->decorrelate[0] = ff_flac_decorrelate_indep6_16_sse2;
  68.             else if (ARCH_X86_64 && channels == 8)
  69.                 c->decorrelate[0] = ff_flac_decorrelate_indep8_16_sse2;
  70.             c->decorrelate[1] = ff_flac_decorrelate_ls_16_sse2;
  71.             c->decorrelate[2] = ff_flac_decorrelate_rs_16_sse2;
  72.             c->decorrelate[3] = ff_flac_decorrelate_ms_16_sse2;
  73.         } else if (fmt == AV_SAMPLE_FMT_S32) {
  74.             if (channels == 2)
  75.                 c->decorrelate[0] = ff_flac_decorrelate_indep2_32_sse2;
  76.             else if (channels == 4)
  77.                 c->decorrelate[0] = ff_flac_decorrelate_indep4_32_sse2;
  78.             else if (channels == 6)
  79.                 c->decorrelate[0] = ff_flac_decorrelate_indep6_32_sse2;
  80.             else if (ARCH_X86_64 && channels == 8)
  81.                 c->decorrelate[0] = ff_flac_decorrelate_indep8_32_sse2;
  82.             c->decorrelate[1] = ff_flac_decorrelate_ls_32_sse2;
  83.             c->decorrelate[2] = ff_flac_decorrelate_rs_32_sse2;
  84.             c->decorrelate[3] = ff_flac_decorrelate_ms_32_sse2;
  85.         }
  86.     }
  87.     if (EXTERNAL_SSE4(cpu_flags)) {
  88.         c->lpc32 = ff_flac_lpc_32_sse4;
  89.     }
  90.     if (EXTERNAL_AVX(cpu_flags)) {
  91.         if (fmt == AV_SAMPLE_FMT_S16) {
  92.             if (ARCH_X86_64 && channels == 8)
  93.                 c->decorrelate[0] = ff_flac_decorrelate_indep8_16_avx;
  94.         } else if (fmt == AV_SAMPLE_FMT_S32) {
  95.             if (channels == 4)
  96.                 c->decorrelate[0] = ff_flac_decorrelate_indep4_32_avx;
  97.             else if (channels == 6)
  98.                 c->decorrelate[0] = ff_flac_decorrelate_indep6_32_avx;
  99.             else if (ARCH_X86_64 && channels == 8)
  100.                 c->decorrelate[0] = ff_flac_decorrelate_indep8_32_avx;
  101.         }
  102.     }
  103.     if (EXTERNAL_XOP(cpu_flags)) {
  104.         c->lpc32 = ff_flac_lpc_32_xop;
  105.     }
  106. #endif
  107.  
  108. #if CONFIG_FLAC_ENCODER
  109.     if (EXTERNAL_SSE4(cpu_flags)) {
  110.         if (CONFIG_GPL)
  111.             c->lpc16_encode = ff_flac_enc_lpc_16_sse4;
  112.     }
  113. #endif
  114. #endif /* HAVE_YASM */
  115. }
  116.