/* * AAC data declarations * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org ) * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com ) * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * AAC data declarations * @author Oded Shimon  ( ods15 ods15 dyndns org ) * @author Maxim Gavrilov ( maxim.gavrilov gmail com ) */ #ifndef AVCODEC_AACTAB_H#define AVCODEC_AACTAB_H #include "libavutil/mem_internal.h" #include <stdint.h> /* NOTE: * Tables in this file are shared by the AAC decoders and encoder */ extern float ff_aac_pow2sf_tab[428];extern float ff_aac_pow34sf_tab[428]; /* @name ltp_coef * Table of the LTP coefficients */extern const float ff_ltp_coef[8]; /* @name tns_tmp2_map * Tables of the tmp2[] arrays of LPC coefficients used for TNS. * @{ */extern const float *const ff_tns_tmp2_map[4];// @} /* @name window coefficients * @{ */DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_long_1024)[1024];DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_short_128)[128];DECLARE_ALIGNED(32, extern const float, ff_aac_eld_window_512)[1920];DECLARE_ALIGNED(32, extern const int,   ff_aac_eld_window_512_fixed)[1920];DECLARE_ALIGNED(32, extern const float, ff_aac_eld_window_480)[1800];DECLARE_ALIGNED(32, extern const int,   ff_aac_eld_window_480_fixed)[1800];// @} extern const float ff_aac_deemph_weights[16]; /* Initializes data shared between float decoder and encoder. */void ff_aac_float_common_init(void); /* @name number of scalefactor window bands for long and short transform windows respectively * @{ */extern const uint8_t ff_aac_num_swb_1024[];extern const uint8_t ff_aac_num_swb_960 [];extern const uint8_t ff_aac_num_swb_768 [];extern const uint8_t ff_aac_num_swb_512 [];extern const uint8_t ff_aac_num_swb_480 [];extern const uint8_t ff_aac_num_swb_128 [];extern const uint8_t ff_aac_num_swb_120 [];extern const uint8_t ff_aac_num_swb_96  [];// @} extern const uint8_t ff_aac_pred_sfb_max []; extern const uint32_t ff_aac_scalefactor_code[121];extern const uint8_t  ff_aac_scalefactor_bits[121]; extern const uint16_t * const ff_aac_spectral_codes[11];extern const uint8_t  * const ff_aac_spectral_bits [11];extern const uint16_t  ff_aac_spectral_sizes[11]; extern const float *const ff_aac_codebook_vectors[];extern const float *const ff_aac_codebook_vector_vals[];extern const uint16_t *const ff_aac_codebook_vector_idx[]; extern const uint16_t ff_aac_ac_msb_cdfs[64][17];extern const uint16_t ff_aac_ac_lsb_cdfs[3][4];extern const uint8_t ff_aac_ac_lookup_m[742];extern const uint32_t ff_aac_ac_hash_m[742];extern const uint16_t ff_aac_ac_cf_m[64][17]; extern const uint16_t * const ff_swb_offset_1024[13];extern const uint16_t * const ff_swb_offset_960 [13];extern const uint16_t * const ff_swb_offset_768 [13];extern const uint16_t * const ff_swb_offset_512 [13];extern const uint16_t * const ff_swb_offset_480 [13];extern const uint16_t * const ff_swb_offset_128 [13];extern const uint16_t * const ff_swb_offset_120 [13];extern const uint16_t * const ff_swb_offset_96  [13]; extern const uint8_t ff_tns_max_bands_1024[13];extern const uint8_t ff_tns_max_bands_512 [13];extern const uint8_t ff_tns_max_bands_480 [13];extern const uint8_t ff_tns_max_bands_128 [13]; extern const uint8_t ff_tns_max_bands_usac_1024[13];extern const uint8_t ff_tns_max_bands_usac_128[13]; /* [x][y], x == 1 -> frame len is 768 frames, y == 1 -> is eight_short */extern const uint8_t ff_usac_noise_fill_start_offset[2][2]; extern const int ff_aac_usac_samplerate[32]; /* Window type (only long+eight, start/stop/stopstart), sine+sine, kbd+kbd, sine+kbd, kbd+sine */extern const float ff_aac_usac_mdst_filt_cur[4 /* Window */][4 /* Shape */][7];/* Window type (everything/longstop+stopstart), sine or kbd */extern const float ff_aac_usac_mdst_filt_prev[2 /* Window */][2 /* sine/kbd */][7]; #endif /* AVCODEC_AACTAB_H */