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EncModeCtrl.h 17.69 KiB
/* The copyright in this software is being made available under the BSD
* License, included below. This software may be subject to other third party
* and contributor rights, including patent rights, and no such rights are
* granted under this license.
*
* Copyright (c) 2010-2018, ITU/ISO/IEC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
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* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/** \file EncModeCtrl.h
\brief Encoder controller for trying out specific modes
*/
#ifndef __ENCMODECTRL__
#define __ENCMODECTRL__
// Include files
#include "EncCfg.h"
#include "CommonLib/CommonDef.h"
#include "CommonLib/CodingStructure.h"
#include <typeinfo>
#include <vector>
//////////////////////////////////////////////////////////////////////////
// Encoder modes to try out
//////////////////////////////////////////////////////////////////////////
enum EncTestModeType
{
ETM_MERGE_SKIP,
ETM_INTER_ME,
ETM_AFFINE,
ETM_MERGE_TRIANGLE,
ETM_INTRA,
ETM_IPCM,
ETM_SPLIT_QT,
ETM_SPLIT_BT_H,
ETM_SPLIT_BT_V,
ETM_SPLIT_TT_H,
ETM_SPLIT_TT_V,
ETM_POST_DONT_SPLIT, // dummy mode to collect the data from the unsplit coding
#if REUSE_CU_RESULTS
ETM_RECO_CACHED,#endif
ETM_TRIGGER_IMV_LIST,
#if JVET_L0293_CPR
ETM_CPR, // cpr mode
ETM_CPR_MERGE, // cpr merge mode
#endif
ETM_INVALID
};
enum EncTestModeOpts
{
ETO_STANDARD = 0, // empty (standard option)
ETO_FORCE_MERGE = 1<<0, // bit 0 (indicates forced merge)
ETO_IMV_SHIFT = 1, // bits 1-3 (imv parameter starts at bit 1)
ETO_IMV = 7<<ETO_IMV_SHIFT, // bits 1-3 (imv parameter uses 3 bits)
ETO_DUMMY = 1<<5, // bit 5 (dummy)
ETO_INVALID = 0xffffffff // bits 0-31 (invalid option)
};
static void getAreaIdx(const Area& area, const PreCalcValues &pcv, unsigned &idx1, unsigned &idx2, unsigned &idx3, unsigned &idx4)
{
idx1 = (area.x & pcv.maxCUWidthMask) >> MIN_CU_LOG2;
idx2 = (area.y & pcv.maxCUHeightMask) >> MIN_CU_LOG2;
idx3 = gp_sizeIdxInfo->idxFrom( area.width );
idx4 = gp_sizeIdxInfo->idxFrom( area.height );
}
struct EncTestMode
{
EncTestMode()
: type( ETM_INVALID ), opts( ETO_INVALID ), qp( -1 ), lossless( false ) {}
EncTestMode( EncTestModeType _type )
: type( _type ), opts( ETO_STANDARD ), qp( -1 ), lossless( false ) {}
EncTestMode( EncTestModeType _type, int _qp, bool _lossless )
: type( _type ), opts( ETO_STANDARD ), qp( _qp ), lossless( _lossless ) {}
EncTestMode( EncTestModeType _type, EncTestModeOpts _opts, int _qp, bool _lossless )
: type( _type ), opts( _opts ), qp( _qp ), lossless( _lossless ) {}
EncTestModeType type;
EncTestModeOpts opts;
int qp;
bool lossless;
};
inline bool isModeSplit( const EncTestMode& encTestmode )
{
switch( encTestmode.type )
{
case ETM_SPLIT_QT :
case ETM_SPLIT_BT_H :
case ETM_SPLIT_BT_V :
case ETM_SPLIT_TT_H :
case ETM_SPLIT_TT_V :
return true;
default:
return false;
}
}
inline bool isModeNoSplit( const EncTestMode& encTestmode )
{
return !isModeSplit( encTestmode ) && encTestmode.type != ETM_POST_DONT_SPLIT;
}
inline bool isModeInter( const EncTestMode& encTestmode ) // perhaps remove
{
return ( encTestmode.type == ETM_INTER_ME
|| encTestmode.type == ETM_MERGE_SKIP
|| encTestmode.type == ETM_AFFINE || encTestmode.type == ETM_MERGE_TRIANGLE
);
}
inline PartSplit getPartSplit( const EncTestMode& encTestmode )
{
switch( encTestmode.type )
{
case ETM_SPLIT_QT : return CU_QUAD_SPLIT;
case ETM_SPLIT_BT_H : return CU_HORZ_SPLIT;
case ETM_SPLIT_BT_V : return CU_VERT_SPLIT;
case ETM_SPLIT_TT_H : return CU_TRIH_SPLIT;
case ETM_SPLIT_TT_V : return CU_TRIV_SPLIT;
default: return CU_DONT_SPLIT;
}
}
inline EncTestMode getCSEncMode( const CodingStructure& cs )
{
return EncTestMode( EncTestModeType( (unsigned)cs.features[ENC_FT_ENC_MODE_TYPE] ),
EncTestModeOpts( (unsigned)cs.features[ENC_FT_ENC_MODE_OPTS] ),
false);
}
//////////////////////////////////////////////////////////////////////////
// EncModeCtrl controls if specific modes should be tested
//////////////////////////////////////////////////////////////////////////
struct ComprCUCtx
{
ComprCUCtx() : testModes(), extraFeatures()
{
}
ComprCUCtx( const CodingStructure& cs, const uint32_t _minDepth, const uint32_t _maxDepth, const uint32_t numExtraFeatures )
: minDepth ( _minDepth )
, maxDepth ( _maxDepth )
, testModes ( )
, lastTestMode ( )
, earlySkip ( false )
, bestCS ( nullptr )
, bestCU ( nullptr )
, bestTU ( nullptr )
, extraFeatures ( )
, extraFeaturesd( )
, bestInterCost ( MAX_DOUBLE )
, bestEmtSize2Nx2N1stPass
( MAX_DOUBLE )
, skipSecondEMTPass
( false )
, interHad (std::numeric_limits<Distortion>::max())
#if ENABLE_SPLIT_PARALLELISM
, isLevelSplitParallel
( false )
#endif
{
getAreaIdx( cs.area.Y(), *cs.pcv, cuX, cuY, cuW, cuH );
partIdx = ( ( cuX << 8 ) | cuY );
extraFeatures.reserve( numExtraFeatures );
extraFeatures.resize ( numExtraFeatures, 0 );
extraFeaturesd.reserve( numExtraFeatures );
extraFeaturesd.resize ( numExtraFeatures, 0.0 );
}
unsigned minDepth;
unsigned maxDepth; unsigned cuX, cuY, cuW, cuH, partIdx;
std::vector<EncTestMode> testModes;
EncTestMode lastTestMode;
bool earlySkip;
CodingStructure *bestCS;
CodingUnit *bestCU;
TransformUnit *bestTU;
static_vector<int64_t, 30> extraFeatures;
static_vector<double, 30> extraFeaturesd;
double bestInterCost;
double bestEmtSize2Nx2N1stPass;
bool skipSecondEMTPass;
Distortion interHad;
#if ENABLE_SPLIT_PARALLELISM
bool isLevelSplitParallel;
#endif
template<typename T> T get( int ft ) const { return typeid(T) == typeid(double) ? (T&)extraFeaturesd[ft] : T(extraFeatures[ft]); }
template<typename T> void set( int ft, T val ) { extraFeatures [ft] = int64_t( val ); }
void set( int ft, double val ) { extraFeaturesd[ft] = val; }
};
//////////////////////////////////////////////////////////////////////////
// EncModeCtrl - abstract class specifying the general flow of mode control
//////////////////////////////////////////////////////////////////////////
class EncModeCtrl
{
protected:
const EncCfg *m_pcEncCfg;
const class RateCtrl *m_pcRateCtrl;
class RdCost *m_pcRdCost;
const Slice *m_slice;
#if SHARP_LUMA_DELTA_QP
int m_lumaLevelToDeltaQPLUT[LUMA_LEVEL_TO_DQP_LUT_MAXSIZE];
int m_lumaQPOffset;
#endif
bool m_fastDeltaQP;
static_vector<ComprCUCtx, ( MAX_CU_DEPTH << 2 )> m_ComprCUCtxList;
#if ENABLE_SPLIT_PARALLELISM
int m_runNextInParallel;
#endif
public:
virtual ~EncModeCtrl () {}
#if REUSE_CU_RESULTS
virtual void create ( const EncCfg& cfg ) = 0;
virtual void destroy () = 0;
#endif
virtual void initCTUEncoding ( const Slice &slice ) = 0;
virtual void initCULevel ( Partitioner &partitioner, const CodingStructure& cs ) = 0;
virtual void finishCULevel ( Partitioner &partitioner ) = 0;
protected:
virtual bool tryMode ( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner ) = 0;
public:
virtual bool useModeResult ( const EncTestMode& encTestmode, CodingStructure*& tempCS, Partitioner& partitioner ) = 0;
#if ENABLE_SPLIT_PARALLELISM
virtual void copyState ( const EncModeCtrl& other, const UnitArea& area );
virtual int getNumParallelJobs ( const CodingStructure &cs, Partitioner& partitioner ) const { return 1; }
virtual bool isParallelSplit ( const CodingStructure &cs, Partitioner& partitioner ) const { return false; }
virtual bool parallelJobSelector ( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner ) const { return true; }
void setParallelSplit ( bool val ) { m_runNextInParallel = val; }
#endif
void init ( EncCfg *pCfg, RateCtrl *pRateCtrl, RdCost *pRdCost );
bool tryModeMaster ( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner );
bool nextMode ( const CodingStructure &cs, Partitioner &partitioner );
EncTestMode currTestMode () const;
EncTestMode lastTestMode () const;
void setEarlySkipDetected ();
virtual void setBest ( CodingStructure& cs );
bool anyMode () const;
const ComprCUCtx& getComprCUCtx () { CHECK( m_ComprCUCtxList.empty(), "Accessing empty list!"); return m_ComprCUCtxList.back(); }
#if SHARP_LUMA_DELTA_QP
void initLumaDeltaQpLUT();
int calculateLumaDQP ( const CPelBuf& rcOrg );
#endif
void setFastDeltaQp ( bool b ) { m_fastDeltaQP = b; }
bool getFastDeltaQp () const { return m_fastDeltaQP; }
double getBestInterCost () const { return m_ComprCUCtxList.back().bestInterCost; }
Distortion getInterHad () const { return m_ComprCUCtxList.back().interHad; }
void enforceInterHad ( Distortion had ) { m_ComprCUCtxList.back().interHad = had; }
double getEmtSize2Nx2NFirstPassCost () const { return m_ComprCUCtxList.back().bestEmtSize2Nx2N1stPass; }
bool getSkipSecondEMTPass () const { return m_ComprCUCtxList.back().skipSecondEMTPass; }
void setSkipSecondEMTPass ( bool b ) { m_ComprCUCtxList.back().skipSecondEMTPass = b; }
protected:
void xExtractFeatures ( const EncTestMode encTestmode, CodingStructure& cs );
void xGetMinMaxQP ( int& iMinQP, int& iMaxQP, const CodingStructure& cs, const Partitioner &pm, const int baseQP, const SPS& sps, const PPS& pps, const bool splitMode );
int xComputeDQP ( const CodingStructure &cs, const Partitioner &pm );
};
//////////////////////////////////////////////////////////////////////////
// some utility interfaces that expose some functionality that can be used without concerning about which particular controller is used
//////////////////////////////////////////////////////////////////////////
static const int MAX_STORED_CU_INFO_REFS = 4;
struct CodedCUInfo
{
bool isInter;
bool isIntra;
bool isSkip;
#if JVET_L0054_MMVD
bool isMMVDSkip;
#endif
bool validMv[NUM_REF_PIC_LIST_01][MAX_STORED_CU_INFO_REFS];
Mv saveMv [NUM_REF_PIC_LIST_01][MAX_STORED_CU_INFO_REFS];
#if JVET_L0646_GBI
uint8_t GBiIdx;
#endif
#if ENABLE_SPLIT_PARALLELISM
uint64_t
temporalId;
#endif
};
class CacheBlkInfoCtrl
{
private:
unsigned m_numWidths, m_numHeights;
Slice const *m_slice_chblk;
// x in CTU, y in CTU, width, height
CodedCUInfo ***m_codedCUInfo[MAX_CU_SIZE >> MIN_CU_LOG2][MAX_CU_SIZE >> MIN_CU_LOG2];
protected:
void create ();
void destroy ();
#if ENABLE_SPLIT_PARALLELISM
public:
#endif
void init ( const Slice &slice );
#if ENABLE_SPLIT_PARALLELISM
private:
uint64_t
m_currTemporalId;
public:
void tick () { m_currTemporalId++; CHECK( m_currTemporalId <= 0, "Problem with integer overflow!" ); }
// mark the state of the blk as changed within the current temporal id
void copyState( const CacheBlkInfoCtrl &other, const UnitArea& area );
protected:
void touch ( const UnitArea& area );
#endif
CodedCUInfo& getBlkInfo( const UnitArea& area );
public:
virtual ~CacheBlkInfoCtrl() {}
bool isSkip ( const UnitArea& area );
#if JVET_L0054_MMVD
bool isMMVDSkip(const UnitArea& area);
#endif
bool getMv ( const UnitArea& area, const RefPicList refPicList, const int iRefIdx, Mv& rMv ) const;
void setMv ( const UnitArea& area, const RefPicList refPicList, const int iRefIdx, const Mv& rMv );
#if JVET_L0646_GBI
bool getInter( const UnitArea& area );
void setGbiIdx( const UnitArea& area, uint8_t gBiIdx );
uint8_t getGbiIdx( const UnitArea& area );
#endif
};
#if REUSE_CU_RESULTS
struct BestEncodingInfo
{
CodingUnit cu;
PredictionUnit pu;
TransformUnit tu;
EncTestMode testMode;
int poc;
};
class BestEncInfoCache
{
private:
unsigned m_numWidths, m_numHeights;
const Slice *m_slice_bencinf;
BestEncodingInfo ***m_bestEncInfo[MAX_CU_SIZE >> MIN_CU_LOG2][MAX_CU_SIZE >> MIN_CU_LOG2];
TCoeff *m_pCoeff;
Pel *m_pPcmBuf;
CodingStructure m_dummyCS;
XUCache m_dummyCache;
protected:
void create ( const ChromaFormat chFmt );
void destroy ();
void init ( const Slice &slice );
bool setFromCs( const CodingStructure& cs, const Partitioner& partitioner );#if JVET_L0362_QG_FIX
bool isValid ( const CodingStructure& cs, const Partitioner& partitioner, int qp );
#else
bool isValid ( const CodingStructure& cs, const Partitioner& partitioner );
#endif
// TODO: implement copyState
public:
BestEncInfoCache() : m_slice_bencinf( nullptr ), m_dummyCS( m_dummyCache.cuCache, m_dummyCache.puCache, m_dummyCache.tuCache ) {}
virtual ~BestEncInfoCache() {}
bool setCsFrom( CodingStructure& cs, EncTestMode& testMode, const Partitioner& partitioner ) const;
};
#endif
//////////////////////////////////////////////////////////////////////////
// EncModeCtrlMTnoRQT - allows and controls modes introduced by QTBT (inkl. multi-type-tree)
// - only 2Nx2N, no RQT, additional binary/triary CU splits
//////////////////////////////////////////////////////////////////////////
class EncModeCtrlMTnoRQT : public EncModeCtrl, public CacheBlkInfoCtrl
#if REUSE_CU_RESULTS
, public BestEncInfoCache
#endif
{
enum ExtraFeatures
{
DID_HORZ_SPLIT = 0,
DID_VERT_SPLIT,
DID_QUAD_SPLIT,
BEST_HORZ_SPLIT_COST,
BEST_VERT_SPLIT_COST,
BEST_TRIH_SPLIT_COST,
BEST_TRIV_SPLIT_COST,
DO_TRIH_SPLIT,
DO_TRIV_SPLIT,
BEST_NON_SPLIT_COST,
BEST_NO_IMV_COST,
BEST_IMV_COST,
QT_BEFORE_BT,
IS_BEST_NOSPLIT_SKIP,
MAX_QT_SUB_DEPTH,
#if REUSE_CU_RESULTS
IS_REUSING_CU,
#endif
NUM_EXTRA_FEATURES
};
unsigned m_skipThreshold;
public:
EncModeCtrlMTnoRQT ();
~EncModeCtrlMTnoRQT();
#if REUSE_CU_RESULTS
virtual void create ( const EncCfg& cfg );
virtual void destroy ();
#endif
virtual void initCTUEncoding ( const Slice &slice );
virtual void initCULevel ( Partitioner &partitioner, const CodingStructure& cs );
virtual void finishCULevel ( Partitioner &partitioner );
virtual bool tryMode ( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner );
virtual bool useModeResult ( const EncTestMode& encTestmode, CodingStructure*& tempCS, Partitioner& partitioner );
#if ENABLE_SPLIT_PARALLELISM
virtual void copyState ( const EncModeCtrl& other, const UnitArea& area );
virtual int getNumParallelJobs ( const CodingStructure &cs, Partitioner& partitioner ) const;
virtual bool isParallelSplit ( const CodingStructure &cs, Partitioner& partitioner ) const;
virtual bool parallelJobSelector( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner ) const;
#endif
};
//! \}
#endif // __ENCMODECTRL__