/* * ATRAC3 compatible decoder data * Copyright (c) 2006-2007 Maxim Poliakovski * Copyright (c) 2006-2007 Benjamin Larsson * * 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 * ATRAC3 AKA RealAudio 8 compatible decoder data */ #ifndef AVCODEC_ATRAC3DATA_H #define AVCODEC_ATRAC3DATA_H #include <stdint.h> /* VLC tables */ static const uint8_t atrac3_hufftabs[][2] = { /* Spectral coefficient 1 - 9 entries */ { 31, 1 }, { 32, 3 }, { 33, 3 }, { 34, 4 }, { 35, 4 }, { 36, 5 }, { 37, 5 }, { 38, 5 }, { 39, 5 }, /* Spectral coefficient 2 - 5 entries */ { 31, 1 }, { 32, 3 }, { 30, 3 }, { 33, 3 }, { 29, 3 }, /* Spectral coefficient 3 - 7 entries */ { 31, 1 }, { 32, 3 }, { 30, 3 }, { 33, 4 }, { 29, 4 }, { 34, 4 }, { 28, 4 }, /* Spectral coefficient 4 - 9 entries */ { 31, 1 }, { 32, 3 }, { 30, 3 }, { 33, 4 }, { 29, 4 }, { 34, 5 }, { 28, 5 }, { 35, 5 }, { 27, 5 }, /* Spectral coefficient 5 - 15 entries */ { 31, 2 }, { 32, 3 }, { 30, 3 }, { 33, 4 }, { 29, 4 }, { 34, 4 }, { 28, 4 }, { 38, 4 }, { 24, 4 }, { 35, 5 }, { 27, 5 }, { 36, 6 }, { 26, 6 }, { 37, 6 }, { 25, 6 }, /* Spectral coefficient 6 - 31 entries */ { 31, 3 }, { 32, 4 }, { 30, 4 }, { 33, 4 }, { 29, 4 }, { 34, 4 }, { 28, 4 }, { 46, 4 }, { 16, 4 }, { 35, 5 }, { 27, 5 }, { 36, 5 }, { 26, 5 }, { 37, 5 }, { 25, 5 }, { 38, 6 }, { 24, 6 }, { 39, 6 }, { 23, 6 }, { 40, 6 }, { 22, 6 }, { 41, 6 }, { 21, 6 }, { 42, 7 }, { 20, 7 }, { 43, 7 }, { 19, 7 }, { 44, 7 }, { 18, 7 }, { 45, 7 }, { 17, 7 }, /* Spectral coefficient 7 - 63 entries */ { 31, 3 }, { 62, 4 }, { 0, 4 }, { 32, 5 }, { 30, 5 }, { 33, 5 }, { 29, 5 }, { 34, 5 }, { 28, 5 }, { 35, 5 }, { 27, 5 }, { 36, 5 }, { 26, 5 }, { 37, 6 }, { 25, 6 }, { 38, 6 }, { 24, 6 }, { 39, 6 }, { 23, 6 }, { 40, 6 }, { 22, 6 }, { 41, 6 }, { 21, 6 }, { 42, 6 }, { 20, 6 }, { 43, 6 }, { 19, 6 }, { 44, 6 }, { 18, 6 }, { 45, 7 }, { 17, 7 }, { 46, 7 }, { 16, 7 }, { 47, 7 }, { 15, 7 }, { 48, 7 }, { 14, 7 }, { 49, 7 }, { 13, 7 }, { 50, 7 }, { 12, 7 }, { 51, 7 }, { 11, 7 }, { 52, 8 }, { 10, 8 }, { 53, 8 }, { 9, 8 }, { 54, 8 }, { 8, 8 }, { 55, 8 }, { 7, 8 }, { 56, 8 }, { 6, 8 }, { 57, 8 }, { 5, 8 }, { 58, 8 }, { 4, 8 }, { 59, 8 }, { 3, 8 }, { 60, 8 }, { 2, 8 }, { 61, 8 }, { 1, 8 }, }; static const uint8_t huff_tab_sizes[7] = { 9, 5, 7, 9, 15, 31, 63, }; /* selector tables */ static const uint8_t clc_length_tab[8] = { 0, 4, 3, 3, 4, 4, 5, 6 }; static const int8_t mantissa_clc_tab[4] = { 0, 1, -2, -1 }; static const int8_t mantissa_vlc_tab[18] = { 0, 0, 0, 1, 0, -1, 1, 0, -1, 0, 1, 1, 1, -1, -1, 1, -1, -1 }; /* tables for the scalefactor decoding */ static const float inv_max_quant[8] = { 0.0, 1.0 / 1.5, 1.0 / 2.5, 1.0 / 3.5, 1.0 / 4.5, 1.0 / 7.5, 1.0 / 15.5, 1.0 / 31.5 }; static const uint16_t subband_tab[33] = { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 288, 320, 352, 384, 416, 448, 480, 512, 576, 640, 704, 768, 896, 1024 }; /* joint stereo related tables */ static const float matrix_coeffs[8] = { 0.0, 2.0, 2.0, 2.0, 0.0, 0.0, 1.0, 1.0 }; #endif /* AVCODEC_ATRAC3DATA_H */