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/** \file     PreProcess.h

    \brief

*/

#pragma once

#include "CommonLib/CommonDef.h"

#include "EncStage.h"

#include "GOPCfg.h"

#include "BitAllocation.h"

//! \ingroup EncoderLib

//! \{

namespace vvenc {

// ====================================================================================================================

class PreProcess : public EncStage

{

  private:

    const VVEncCfg* m_encCfg;

    GOPCfg          m_gopCfg;

    int             m_lastPoc;

    bool            m_isHighRes;

    bool            m_doSTA;

    bool            m_doTempDown;

    bool            m_doVisAct;

    bool            m_doVisActQpa;

    bool            m_cappedCQF;

  public:

    PreProcess( MsgLog& _m );

    virtual ~PreProcess();

    void init( const VVEncCfg& encCfg, bool isFinalPass );

    const GOPCfg* getGOPCfg() const { return &m_gopCfg; };

  protected:

    virtual void initPicture    ( Picture* pic );

    virtual void processPictures( const PicList& picList, AccessUnitList& auList, PicList& doneList, PicList& freeList );

  private:

    void     xFreeUnused          ( Picture* pic, const PicList& picList, PicList& doneList, PicList& freeList ) const;

    void     xGetPrevPics         ( const Picture* pic, const PicList& picList, const Picture* prevPics[ NUM_QPA_PREV_FRAMES ] ) const;

    Picture* xGetPrevTL0Pic       ( const Picture* pic, const PicList& picList ) const;

    Picture* xGetStartOfLastGop   ( const PicList& picList ) const;

    void     xLinkPrevQpaBufs     ( Picture* pic, const PicList& picList ) const;

    void     xGetVisualActivity   ( Picture* pic, const PicList& picList ) const;

    void     xGetSpatialActivity  ( Picture* pic, bool doLuma, bool doChroma, VisAct va[ MAX_NUM_CH ] ) const;

    void     xGetTemporalActivity ( Picture* curPic, const Picture* refPic1, const Picture* refPic2, VisAct& va ) const;

    void     xDetectSTA           ( Picture* pic, const PicList& picList );

    void     xDetectScc           ( Picture* pic ) const;

    void     xDisableTempDown     ( Picture* pic, const PicList& picList, const int thresh = INT32_MAX );

};

} // namespace vvenc

//! \}