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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 "atrac3.h"
#include "atrac1.h"
#include "../aea.h"
#include "../oma.h"
#include "../atrac/atrac1.h"
#include "atrac_scale.h"
#include <vector>
#include <utility>
#include "../env.h"
namespace NAtracDEnc {
namespace NAtrac3 {
struct TTonalBlock {
TTonalBlock(const TAtrac3Data::TTonalVal* valPtr, const TScaledBlock& scaledBlock)
: ValPtr(valPtr)
, ScaledBlock(scaledBlock)
{}
const TAtrac3Data::TTonalVal* ValPtr = nullptr;
TScaledBlock ScaledBlock;
};
class TAtrac3BitStreamWriter : public virtual TAtrac3Data {
public:
struct TSingleChannelElement {
TAtrac3Data::SubbandInfo SubbandInfo;
std::vector<TTonalBlock> TonalBlocks;
std::vector<TScaledBlock> ScaledBlocks;
};
private:
struct TTonalComponentsSubGroup {
std::vector<uint8_t> SubGroupMap;
std::vector<const TTonalBlock*> SubGroupPtr;
};
TOma* Container;
const TContainerParams Params;
const uint32_t BfuIdxConst;
std::vector<char> OutBuffer;
uint32_t CLCEnc(const uint32_t selector, const int mantissas[MaxSpecsPerBlock],
const uint32_t blockSize, NBitStream::TBitStream* bitStream);
uint32_t VLCEnc(const uint32_t selector, const int mantissas[MaxSpecsPerBlock],
const uint32_t blockSize, NBitStream::TBitStream* bitStream);
std::vector<uint32_t> CalcBitsAllocation(const std::vector<TScaledBlock>& scaledBlocks,
uint32_t bfuNum, TFloat spread, TFloat shift);
std::pair<uint8_t, std::vector<uint32_t>> CreateAllocation(const TSingleChannelElement& sce,
uint16_t bitsUsed, int mt[MaxSpecs]);
std::pair<uint8_t, uint32_t> CalcSpecsBitsConsumption(const TSingleChannelElement& sce,
const std::vector<uint32_t>& precisionPerEachBlocks,
int* mantisas);
void EncodeSpecs(const TSingleChannelElement& sce, NBitStream::TBitStream* bitStream,
uint16_t bitsUsed);
uint8_t GroupTonalComponents(const std::vector<TTonalBlock>& tonalComponents,
const std::vector<uint32_t>& allocTable,
TTonalComponentsSubGroup groups[64]);
uint16_t EncodeTonalComponents(const TSingleChannelElement& sce,
const std::vector<uint32_t>& allocTable,
NBitStream::TBitStream* bitStream);
public:
TAtrac3BitStreamWriter(TOma* container, const TContainerParams& params, uint32_t bfuIdxConst) //no mono mode for atrac3
: Container(container)
, Params(params)
, BfuIdxConst(bfuIdxConst)
{
NEnv::SetRoundFloat();
}
void WriteSoundUnit(const std::vector<TSingleChannelElement>& singleChannelElements);
};
} // namespace NAtrac3
} // namespace NAtracDEnc
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