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/*
* This file is part of AtracDEnc.
*
* AtracDEnc 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.
*
* AtracDEnc 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 AtracDEnc; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <array>
#include <cstdint>
#include <cstddef>
namespace NAtracDEnc {
namespace NAt3p {
float InvMantTab(size_t i);
struct TVlcElement {
int16_t Code;
int16_t Len;
};
struct THuffTables {
THuffTables();
std::array<TVlcElement, 16> NumToneBands;
std::array<std::array<TVlcElement, 256>, 112> VlcSpecs;
std::array<std::array<TVlcElement, 8>, 4> WordLens;
std::array<std::array<TVlcElement, 8>, 4> CodeTables;
};
struct TScaleTable {
class TBlockSizeMod {
public:
constexpr bool ShortWin(uint8_t) const noexcept {
return false;
}
};
static constexpr uint32_t MaxBfus = 32;
static constexpr uint32_t NumQMF = 16;
static float ScaleTable[64];
static constexpr uint32_t BlocksPerBand[NumQMF + 1] =
{
0, 8, 12, 16, 18, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32
};
static constexpr uint32_t SpecsPerBlock[MaxBfus] = {
16, 16, 16, 16, 16, 16, 16, 16,
32, 32, 32, 32, 32, 32, 32, 32,
64, 64, 64, 64, 64, 64, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128
};
static constexpr uint32_t BlockSizeTab[MaxBfus + 1] = {
0, 16, 32, 48, 64, 80, 96, 112,
128, 160, 192, 224, 256, 288, 320, 352,
384, 448, 512, 576, 640, 704, 768, 896,
1024, 1152, 1280, 1408, 1536, 1664, 1792, 1920,
2048
};
static constexpr uint32_t const * const SpecsStartShort = &BlockSizeTab[0];
static constexpr uint32_t const * const SpecsStartLong = &BlockSizeTab[0];
};
}
} // namespace NAtracDEnc
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