X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fatrac3data.h;h=4f5c1220212f0db708a7508310ef232aec2d10fb;hb=8f144d9e3d5cb2ca92e5bdf7cc9f72effa1bd2ce;hp=0017d60c06566d108b672ac88512ab7d2e80f018;hpb=10e26bc782b512e275fe860f2c8330b0b9277410;p=ffmpeg diff --git a/libavcodec/atrac3data.h b/libavcodec/atrac3data.h index 0017d60c065..4f5c1220212 100644 --- a/libavcodec/atrac3data.h +++ b/libavcodec/atrac3data.h @@ -1,133 +1,141 @@ /* - * Atrac 3 compatible decoder data + * ATRAC3 compatible decoder data * Copyright (c) 2006-2007 Maxim Poliakovski * Copyright (c) 2006-2007 Benjamin Larsson * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * 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. * - * FFmpeg is distributed in the hope that it will be useful, + * 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 FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file atrac3data.h - * Atrac 3 AKA RealAudio 8 compatible decoder data + * @file + * ATRAC3 AKA RealAudio 8 compatible decoder data */ +#ifndef AVCODEC_ATRAC3DATA_H +#define AVCODEC_ATRAC3DATA_H + +#include + /* VLC tables */ static const uint8_t huffcode1[9] = { - 0x0,0x4,0x5,0xC,0xD,0x1C,0x1D,0x1E,0x1F, + 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 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 huffcode2[5] = { 0x0, 0x4, 0x5, 0x6, 0x7 }; -static const uint8_t huffbits2[5] = { - 1,3,3,3,3, -}; +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 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 huffbits3[7] = { 1, 3, 3, 4, 4, 4, 4 }; static const uint8_t huffcode4[9] = { - 0x0,0x4,0x5,0xC,0xD,0x1C,0x1D,0x1E,0x1F, + 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 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, + 0x00, 0x02, 0x03, 0x08, 0x09, 0x0A, 0x0B, 0x1C, + 0x1D, 0x3C, 0x3D, 0x3E, 0x3F, 0x0C, 0x0D }; static const uint8_t huffbits5[15] = { - 2,3,3,4,4,4,4,5,5,6,6,6,6,4,4 + 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, + 0x00, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x14, + 0x15, 0x16, 0x17, 0x18, 0x19, 0x34, 0x35, 0x36, + 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x78, 0x79, 0x7A, + 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x08, 0x09 }; 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 + 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, + 0x00, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, + 0x0F, 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, 0x02, 0x03 }; 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 + 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, + 9, 5, 7, 9, 15, 31, 63, }; -static const uint8_t* huff_codes[7] = { - huffcode1,huffcode2,huffcode3,huffcode4,huffcode5,huffcode6,huffcode7, +static const uint8_t* const huff_codes[7] = { + huffcode1, huffcode2, huffcode3, huffcode4, huffcode5, huffcode6, huffcode7 }; -static const uint8_t* huff_bits[7] = { - huffbits1,huffbits2,huffbits3,huffbits4,huffbits5,huffbits6,huffbits7, +static const uint8_t* const huff_bits[7] = { + huffbits1, huffbits2, huffbits3, huffbits4, huffbits5, huffbits6, huffbits7, +}; + +static const uint16_t atrac3_vlc_offs[9] = { + 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}; +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 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 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 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 +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 }; -/* transform data */ - -static const float qmf_48tap_half[24] = { - -0.00001461907, -0.00009205479, -0.000056157569, 0.00030117269, - 0.0002422519,-0.00085293897, -0.0005205574, 0.0020340169, - 0.00078333891, -0.0042153862, -0.00075614988, 0.0078402944, - -0.000061169922, -0.01344162, 0.0024626821, 0.021736089, - -0.007801671, -0.034090221, 0.01880949, 0.054326009, - -0.043596379, -0.099384367, 0.13207909, 0.46424159 +/* 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 }; -/* 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 */