Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1. /*
  2.  * Copyright (c) 2011 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 <stdint.h>
  22.  
  23. #include "libavutil/arm/cpu.h"
  24. #include "libavutil/attributes.h"
  25. #include "libavcodec/ac3dsp.h"
  26. #include "config.h"
  27.  
  28. void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
  29. int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len);
  30. void ff_ac3_lshift_int16_neon(int16_t *src, unsigned len, unsigned shift);
  31. void ff_ac3_rshift_int32_neon(int32_t *src, unsigned len, unsigned shift);
  32. void ff_float_to_fixed24_neon(int32_t *dst, const float *src, unsigned int len);
  33. void ff_ac3_extract_exponents_neon(uint8_t *exp, int32_t *coef, int nb_coefs);
  34. void ff_ac3_sum_square_butterfly_int32_neon(int64_t sum[4],
  35.                                             const int32_t *coef0,
  36.                                             const int32_t *coef1,
  37.                                             int len);
  38. void ff_ac3_sum_square_butterfly_float_neon(float sum[4],
  39.                                             const float *coef0,
  40.                                             const float *coef1,
  41.                                             int len);
  42.  
  43. void ff_ac3_bit_alloc_calc_bap_armv6(int16_t *mask, int16_t *psd,
  44.                                      int start, int end,
  45.                                      int snr_offset, int floor,
  46.                                      const uint8_t *bap_tab, uint8_t *bap);
  47.  
  48. void ff_ac3_update_bap_counts_arm(uint16_t mant_cnt[16], uint8_t *bap, int len);
  49.  
  50. av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact)
  51. {
  52.     int cpu_flags = av_get_cpu_flags();
  53.  
  54.     c->update_bap_counts         = ff_ac3_update_bap_counts_arm;
  55.  
  56.     if (have_armv6(cpu_flags)) {
  57.         c->bit_alloc_calc_bap    = ff_ac3_bit_alloc_calc_bap_armv6;
  58.     }
  59.  
  60.     if (have_neon(cpu_flags)) {
  61.         c->ac3_exponent_min      = ff_ac3_exponent_min_neon;
  62.         c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_neon;
  63.         c->ac3_lshift_int16      = ff_ac3_lshift_int16_neon;
  64.         c->ac3_rshift_int32      = ff_ac3_rshift_int32_neon;
  65.         c->float_to_fixed24      = ff_float_to_fixed24_neon;
  66.         c->extract_exponents     = ff_ac3_extract_exponents_neon;
  67.         c->sum_square_butterfly_int32 = ff_ac3_sum_square_butterfly_int32_neon;
  68.         c->sum_square_butterfly_float = ff_ac3_sum_square_butterfly_float_neon;
  69.     }
  70. }
  71.