/* * Atrac 3 compatible decoder data * Copyright (c) 2006-2007 Maxim Poliakovski * Copyright (c) 2006-2007 Benjamin Larsson * * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * Atrac 3 AKA RealAudio 8 compatible decoder data */ #ifndef AVCODEC_ATRAC3DATA_H #define AVCODEC_ATRAC3DATA_H #include <stdint.h> /* VLC tables */ static const uint8_t huffcode1[9] = { 0x0,0x4,0x5,0xC,0xD,0x1C,0x1D,0x1E,0x1F, }; static const uint8_t huffbits1[9] = { 1,3,3,4,4,5,5,5,5, }; static const uint8_t huffcode2[5] = { 0x0,0x4,0x5,0x6,0x7, }; static const uint8_t huffbits2[5] = { 1,3,3,3,3, }; static const uint8_t huffcode3[7] = { 0x0,0x4,0x5,0xC,0xD,0xE,0xF, }; static const uint8_t huffbits3[7] = { 1,3,3,4,4,4,4, }; static const uint8_t huffcode4[9] = { 0x0,0x4,0x5,0xC,0xD,0x1C,0x1D,0x1E,0x1F, }; static const uint8_t huffbits4[9] = { 1,3,3,4,4,5,5,5,5, }; static const uint8_t huffcode5[15] = { 0x0,0x2,0x3,0x8,0x9,0xA,0xB,0x1C,0x1D,0x3C,0x3D,0x3E,0x3F,0xC,0xD, }; static const uint8_t huffbits5[15] = { 2,3,3,4,4,4,4,5,5,6,6,6,6,4,4 }; static const uint8_t huffcode6[31] = { 0x0,0x2,0x3,0x4,0x5,0x6,0x7,0x14,0x15,0x16,0x17,0x18,0x19,0x34,0x35, 0x36,0x37,0x38,0x39,0x3A,0x3B,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,0x8,0x9, }; static const uint8_t huffbits6[31] = { 3,4,4,4,4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,4,4 }; static const uint8_t huffcode7[63] = { 0x0,0x8,0x9,0xA,0xB,0xC,0xD,0xE,0xF,0x10,0x11,0x24,0x25,0x26,0x27,0x28, 0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x68,0x69,0x6A,0x6B,0x6C, 0x6D,0x6E,0x6F,0x70,0x71,0x72,0x73,0x74,0x75,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2, 0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x2,0x3, }; static const uint8_t huffbits7[63] = { 3,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,4,4 }; static const uint8_t huff_tab_sizes[7] = { 9, 5, 7, 9, 15, 31, 63, }; static const uint8_t* const huff_codes[7] = { huffcode1,huffcode2,huffcode3,huffcode4,huffcode5,huffcode6,huffcode7, }; static const uint8_t* const huff_bits[7] = { huffbits1,huffbits2,huffbits3,huffbits4,huffbits5,huffbits6,huffbits7, }; static const uint16_t atrac3_vlc_offs[] = { 0,512,1024,1536,2048,2560,3072,3584,4096 }; /* selector tables */ static const uint8_t CLCLengthTab[8] = {0, 4, 3, 3, 4, 4, 5, 6}; static const int8_t seTab_0[4] = {0, 1, -2, -1}; static const int8_t decTable1[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 iMaxQuant[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 subbandTab[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 matrixCoeffs[8] = {0.0, 2.0, 2.0, 2.0, 0.0, 0.0, 1.0, 1.0}; #endif /* AVCODEC_ATRAC3DATA_H */