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