quantize.h

/*
// Copyright (c) 2009-2014 Joe Bertolami. All Right Reserved.
//
// quantize.h
//
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//     list of conditions and the following disclaimer.
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#ifndef __EVX_QUANTIZE_H__
#define __EVX_QUANTIZE_H__

#include "base.h"
#include "config.h"
#include "math.h"
#include "types.h"
#include "macroblock.h"

#define EVX_MAX_MPEG_QUANT_LEVELS             (32)

namespace evx {

// Queries the appropriate adaptive index for a given block. For non-adaptive
// quantization the result will simply be quality.
uint8 query_block_quantization_parameter(uint8 quality, const macroblock &block, EVX_BLOCK_TYPE block_type);

// Performs quantization of source according to the quantization parameter (qp) and the block type.
void quantize_macroblock(uint8 qp, EVX_BLOCK_TYPE block_type, const macroblock &source, macroblock *__restrict dest);

// Performs an inverse quantization of source according to the quantization parameter and block type.
void inverse_quantize_macroblock(uint8 qp, EVX_BLOCK_TYPE block_type, const macroblock &source, macroblock *__restrict dest);

} // namespace evx

#endif // __EVX_QUANTIZE_H__