libavcodec/aactab.h

   1 /*
   2  * AAC data declarations
   3  * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
   4  * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 /**
  24  * @file libavcodec/aactab.h
  25  * AAC data declarations
  26  * @author Oded Shimon  ( ods15 ods15 dyndns org )
  27  * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
  28  */
  29
  30 #ifndef AVCODEC_AACTAB_H
  31 #define AVCODEC_AACTAB_H
  32
  33 #include "libavutil/mem.h"
  34 #include "aac.h"
  35
  36 #include <stdint.h>
  37
  38 /* NOTE:
  39  * Tables in this file are used by the AAC decoder and will be used by the AAC
  40  * encoder.
  41  */
  42
  43 /* @name window coefficients
  44  * @{
  45  */
  46 DECLARE_ALIGNED(16, extern float,  ff_aac_kbd_long_1024[1024]);
  47 DECLARE_ALIGNED(16, extern float,  ff_aac_kbd_short_128[128]);
  48 // @}
  49
  50 /* @name number of scalefactor window bands for long and short transform windows respectively
  51  * @{
  52  */
  53 extern const uint8_t ff_aac_num_swb_1024[];
  54 extern const uint8_t ff_aac_num_swb_128 [];
  55 // @}
  56
  57 extern const uint8_t ff_aac_pred_sfb_max [];
  58
  59 extern const uint32_t ff_aac_scalefactor_code[121];
  60 extern const uint8_t  ff_aac_scalefactor_bits[121];
  61
  62 extern const uint16_t * const ff_aac_spectral_codes[11];
  63 extern const uint8_t  * const ff_aac_spectral_bits [11];
  64 extern const uint16_t  ff_aac_spectral_sizes[11];
  65
  66 extern const float *ff_aac_codebook_vectors[];
  67
  68 extern const uint16_t * const ff_swb_offset_1024[13];
  69 extern const uint16_t * const ff_swb_offset_128 [13];
  70
  71 extern const uint8_t ff_tns_max_bands_1024[13];
  72 extern const uint8_t ff_tns_max_bands_128 [13];
  73
  74 #if CONFIG_HARDCODED_TABLES
  75 extern const float ff_aac_pow2sf_tab[428];
  76 #else
  77 extern       float ff_aac_pow2sf_tab[428];
  78 #endif /* CONFIG_HARDCODED_TABLES */
  79
  80 #endif /* AVCODEC_AACTAB_H */