[deb_x265.git] / source / encoder / entropy.h

/*****************************************************************************
* Copyright (C) 2013 x265 project
*
* Authors: Steve Borho <steve@borho.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at license @ x265.com.
*****************************************************************************/

#ifndef X265_ENTROPY_H
#define X265_ENTROPY_H

#include "common.h"
#include "bitstream.h"
#include "frame.h"
#include "cudata.h"
#include "contexts.h"
#include "slice.h"

namespace x265 {
// private namespace

struct SaoCtuParam;
struct EstBitsSbac;
class ScalingList;

enum SplitType
{
    DONT_SPLIT            = 0,
    VERTICAL_SPLIT        = 1,
    QUAD_SPLIT            = 2,
    NUMBER_OF_SPLIT_MODES = 3
};

struct TURecurse
{
    uint32_t section;
    uint32_t splitMode;
    uint32_t absPartIdxTURelCU;
    uint32_t absPartIdxStep;

    TURecurse(SplitType splitType, uint32_t _absPartIdxStep, uint32_t _absPartIdxTU)
    {
        static const uint32_t partIdxStepShift[NUMBER_OF_SPLIT_MODES] = { 0, 1, 2 };
        section           = 0;
        absPartIdxTURelCU = _absPartIdxTU;
        splitMode         = (uint32_t)splitType;
        absPartIdxStep    = _absPartIdxStep >> partIdxStepShift[splitMode];
    }

    bool isNextSection()
    {
        if (splitMode == DONT_SPLIT)
        {
            section++;
            return false;
        }
        else
        {
            absPartIdxTURelCU += absPartIdxStep;

            section++;
            return section < (uint32_t)(1 << splitMode);
        }
    }

    bool isLastSection() const
    {
        return (section + 1) >= (uint32_t)(1 << splitMode);
    }
};

struct EstBitsSbac
{
    int significantCoeffGroupBits[NUM_SIG_CG_FLAG_CTX][2];
    int significantBits[NUM_SIG_FLAG_CTX][2];
    int lastXBits[10];
    int lastYBits[10];
    int greaterOneBits[NUM_ONE_FLAG_CTX][2];
    int levelAbsBits[NUM_ABS_FLAG_CTX][2];
    int blockCbpBits[NUM_QT_CBF_CTX][2];
    int blockRootCbpBits[2];
};

class Entropy : public SyntaxElementWriter
{
public:

    uint64_t      m_pad;
    uint8_t       m_contextState[160]; // MAX_OFF_CTX_MOD + padding

    /* CABAC state */
    uint32_t      m_low;
    uint32_t      m_range;
    uint32_t      m_bufferedByte;
    int           m_numBufferedBytes;
    int           m_bitsLeft;
    uint64_t      m_fracBits;
    EstBitsSbac   m_estBitsSbac;

    Entropy();

    void setBitstream(Bitstream* p)    { m_bitIf = p; }

    uint32_t getNumberOfWrittenBits()
    {
        X265_CHECK(!m_bitIf, "bit counting mode expected\n");
        return (uint32_t)(m_fracBits >> 15);
    }

#if CHECKED_BUILD || _DEBUG
    bool m_valid;
    void markInvalid()                 { m_valid = false; }
    void markValid()                   { m_valid = true; }
#else
    void markValid()                   { }
#endif
    void zeroFract()                   { m_fracBits = 0; }
    void resetBits();
    void resetEntropy(const Slice& slice);

    // SBAC RD
    void load(const Entropy& src)            { copyFrom(src); }
    void store(Entropy& dest) const          { dest.copyFrom(*this); }
    void loadContexts(const Entropy& src)    { copyContextsFrom(src); }
    void loadIntraDirModeLuma(const Entropy& src);
    void copyState(const Entropy& other);

    void codeVPS(const VPS& vps);
    void codeSPS(const SPS& sps, const ScalingList& scalingList, const ProfileTierLevel& ptl);
    void codePPS(const PPS& pps);
    void codeVUI(const VUI& vui);
    void codeAUD(const Slice& slice);
    void codeHrdParameters(const HRDInfo& hrd);

    void codeSliceHeader(const Slice& slice, FrameData& encData);
    void codeSliceHeaderWPPEntryPoints(const Slice& slice, const uint32_t *substreamSizes, uint32_t maxOffset);
    void codeShortTermRefPicSet(const RPS& rps);
    void finishSlice()                 { encodeBinTrm(1); finish(); dynamic_cast<Bitstream*>(m_bitIf)->writeByteAlignment(); }

    void encodeCTU(const CUData& cu, const CUGeom& cuGeom);

    void codeIntraDirLumaAng(const CUData& cu, uint32_t absPartIdx, bool isMultiple);
    void codeIntraDirChroma(const CUData& cu, uint32_t absPartIdx, uint32_t *chromaDirMode);

    void codeMergeIndex(const CUData& cu, uint32_t absPartIdx);
    void codeMvd(const CUData& cu, uint32_t absPartIdx, int list);

    void codePartSize(const CUData& cu, uint32_t absPartIdx, uint32_t depth);
    void codePredInfo(const CUData& cu, uint32_t absPartIdx);
    inline void codeQtCbfLuma(const CUData& cu, uint32_t absPartIdx, uint32_t tuDepth) { codeQtCbfLuma(cu.getCbf(absPartIdx, TEXT_LUMA, tuDepth), tuDepth); }

    void codeQtCbfChroma(const CUData& cu, uint32_t absPartIdx, TextType ttype, uint32_t tuDepth, bool lowestLevel);
    void codeCoeff(const CUData& cu, uint32_t absPartIdx, bool& bCodeDQP, const uint32_t depthRange[2]);
    void codeCoeffNxN(const CUData& cu, const coeff_t* coef, uint32_t absPartIdx, uint32_t log2TrSize, TextType ttype);

    inline void codeSaoMerge(uint32_t code)                          { encodeBin(code, m_contextState[OFF_SAO_MERGE_FLAG_CTX]); }
    inline void codeMVPIdx(uint32_t symbol)                          { encodeBin(symbol, m_contextState[OFF_MVP_IDX_CTX]); }
    inline void codeMergeFlag(const CUData& cu, uint32_t absPartIdx) { encodeBin(cu.m_mergeFlag[absPartIdx], m_contextState[OFF_MERGE_FLAG_EXT_CTX]); }
    inline void codeSkipFlag(const CUData& cu, uint32_t absPartIdx)  { encodeBin(cu.isSkipped(absPartIdx), m_contextState[OFF_SKIP_FLAG_CTX + cu.getCtxSkipFlag(absPartIdx)]); }
    inline void codeSplitFlag(const CUData& cu, uint32_t absPartIdx, uint32_t depth) { encodeBin(cu.m_cuDepth[absPartIdx] > depth, m_contextState[OFF_SPLIT_FLAG_CTX + cu.getCtxSplitFlag(absPartIdx, depth)]); }
    inline void codeTransformSubdivFlag(uint32_t symbol, uint32_t ctx)    { encodeBin(symbol, m_contextState[OFF_TRANS_SUBDIV_FLAG_CTX + ctx]); }
    inline void codePredMode(int predMode)                                { encodeBin(predMode == MODE_INTRA ? 1 : 0, m_contextState[OFF_PRED_MODE_CTX]); }
    inline void codeCUTransquantBypassFlag(uint32_t symbol)               { encodeBin(symbol, m_contextState[OFF_TQUANT_BYPASS_FLAG_CTX]); }
    inline void codeQtCbfLuma(uint32_t cbf, uint32_t tuDepth)             { encodeBin(cbf, m_contextState[OFF_QT_CBF_CTX + !tuDepth]); }
    inline void codeQtCbfChroma(uint32_t cbf, uint32_t tuDepth)           { encodeBin(cbf, m_contextState[OFF_QT_CBF_CTX + 2 + tuDepth]); }
    inline void codeQtRootCbf(uint32_t cbf)                               { encodeBin(cbf, m_contextState[OFF_QT_ROOT_CBF_CTX]); }

    void codeSaoOffset(const SaoCtuParam& ctuParam, int plane);

    /* RDO functions */
    void estBit(EstBitsSbac& estBitsSbac, uint32_t log2TrSize, bool bIsLuma) const;
    void estCBFBit(EstBitsSbac& estBitsSbac) const;
    void estSignificantCoeffGroupMapBit(EstBitsSbac& estBitsSbac, bool bIsLuma) const;
    void estSignificantMapBit(EstBitsSbac& estBitsSbac, uint32_t log2TrSize, bool bIsLuma) const;
    void estSignificantCoefficientsBit(EstBitsSbac& estBitsSbac, bool bIsLuma) const;

    inline uint32_t bitsIntraModeNonMPM() const { return bitsCodeBin(0, m_contextState[OFF_ADI_CTX]) + 5; }
    inline uint32_t bitsIntraModeMPM(const uint32_t preds[3], uint32_t dir) const { return bitsCodeBin(1, m_contextState[OFF_ADI_CTX]) + (dir == preds[0] ? 1 : 2); }
    inline uint32_t estimateCbfBits(uint32_t cbf, TextType ttype, uint32_t tuDepth) const { return bitsCodeBin(cbf, m_contextState[OFF_QT_CBF_CTX + ctxCbf[ttype][tuDepth]]); }
    uint32_t bitsInterMode(const CUData& cu, uint32_t absPartIdx, uint32_t depth) const;
    uint32_t bitsIntraMode(const CUData& cu, uint32_t absPartIdx) const
    {
        return bitsCodeBin(0, m_contextState[OFF_SKIP_FLAG_CTX + cu.getCtxSkipFlag(absPartIdx)]) + /* not skip */
               bitsCodeBin(1, m_contextState[OFF_PRED_MODE_CTX]); /* intra */
    }

    /* these functions are only used to estimate the bits when cbf is 0 and will never be called when writing the bistream. */
    inline void codeQtRootCbfZero() { encodeBin(0, m_contextState[OFF_QT_ROOT_CBF_CTX]); }

private:

    /* CABAC private methods */
    void start();
    void finish();

    void encodeBin(uint32_t binValue, uint8_t& ctxModel);
    void encodeBinEP(uint32_t binValue);
    void encodeBinsEP(uint32_t binValues, int numBins);
    void encodeBinTrm(uint32_t binValue);

    /* return the bits of encoding the context bin without updating */
    inline uint32_t bitsCodeBin(uint32_t binValue, uint32_t ctxModel) const
    {
        uint64_t fracBits = (m_fracBits & 32767) + sbacGetEntropyBits(ctxModel, binValue);
        return (uint32_t)(fracBits >> 15);
    }

    void encodeCU(const CUData& ctu, const CUGeom &cuGeom, uint32_t absPartIdx, uint32_t depth, bool& bEncodeDQP);
    void finishCU(const CUData& ctu, uint32_t absPartIdx, uint32_t depth);

    void writeOut();

    /* SBac private methods */
    void writeUnaryMaxSymbol(uint32_t symbol, uint8_t* scmModel, int offset, uint32_t maxSymbol);
    void writeEpExGolomb(uint32_t symbol, uint32_t count);
    void writeCoefRemainExGolomb(uint32_t symbol, const uint32_t absGoRice);

    void codeProfileTier(const ProfileTierLevel& ptl);
    void codeScalingList(const ScalingList&);
    void codeScalingList(const ScalingList& scalingList, uint32_t sizeId, uint32_t listId);

    void codePredWeightTable(const Slice& slice);
    void codeInterDir(const CUData& cu, uint32_t absPartIdx);
    void codePUWise(const CUData& cu, uint32_t absPartIdx);
    void codeRefFrmIdxPU(const CUData& cu, uint32_t absPartIdx, int list);
    void codeRefFrmIdx(const CUData& cu, uint32_t absPartIdx, int list);

    void codeSaoMaxUvlc(uint32_t code, uint32_t maxSymbol);

    void codeDeltaQP(const CUData& cu, uint32_t absPartIdx);
    void codeLastSignificantXY(uint32_t posx, uint32_t posy, uint32_t log2TrSize, bool bIsLuma, uint32_t scanIdx);
    void codeTransformSkipFlags(const CUData& cu, uint32_t absPartIdx, uint32_t trSize, TextType ttype);

    void encodeTransform(const CUData& cu, uint32_t absPartIdx, uint32_t tuDepth, uint32_t log2TrSize,
                         bool& bCodeDQP, const uint32_t depthRange[2]);

    void copyFrom(const Entropy& src);
    void copyContextsFrom(const Entropy& src);
};
}

#endif // ifndef X265_ENTROPY_H
Commit	Line	Data
72b9787e JB	1	/*****************************************************************************
	2	* Copyright (C) 2013 x265 project
	3	*
	4	* Authors: Steve Borho <steve@borho.org>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
	19	*
	20	* This program is also available under a commercial proprietary license.
	21	* For more information, contact us at license @ x265.com.
	22	*****************************************************************************/
	23
	24	#ifndef X265_ENTROPY_H
	25	#define X265_ENTROPY_H
	26
	27	#include "common.h"
	28	#include "bitstream.h"
	29	#include "frame.h"
b53f7c52	30	#include "cudata.h"
72b9787e JB	31	#include "contexts.h"
	32	#include "slice.h"
	33
	34	namespace x265 {
	35	// private namespace
	36
	37	struct SaoCtuParam;
	38	struct EstBitsSbac;
72b9787e JB	39	class ScalingList;
	40
	41	enum SplitType
	42	{
	43	DONT_SPLIT = 0,
	44	VERTICAL_SPLIT = 1,
	45	QUAD_SPLIT = 2,
	46	NUMBER_OF_SPLIT_MODES = 3
	47	};
	48
	49	struct TURecurse
	50	{
	51	uint32_t section;
	52	uint32_t splitMode;
	53	uint32_t absPartIdxTURelCU;
	54	uint32_t absPartIdxStep;
	55
	56	TURecurse(SplitType splitType, uint32_t _absPartIdxStep, uint32_t _absPartIdxTU)
	57	{
	58	static const uint32_t partIdxStepShift[NUMBER_OF_SPLIT_MODES] = { 0, 1, 2 };
	59	section = 0;
	60	absPartIdxTURelCU = _absPartIdxTU;
	61	splitMode = (uint32_t)splitType;
	62	absPartIdxStep = _absPartIdxStep >> partIdxStepShift[splitMode];
	63	}
	64
	65	bool isNextSection()
	66	{
	67	if (splitMode == DONT_SPLIT)
	68	{
	69	section++;
	70	return false;
	71	}
	72	else
	73	{
	74	absPartIdxTURelCU += absPartIdxStep;
	75
	76	section++;
	77	return section < (uint32_t)(1 << splitMode);
	78	}
	79	}
	80
	81	bool isLastSection() const
	82	{
	83	return (section + 1) >= (uint32_t)(1 << splitMode);
	84	}
	85	};
	86
	87	struct EstBitsSbac
	88	{
	89	int significantCoeffGroupBits[NUM_SIG_CG_FLAG_CTX][2];
	90	int significantBits[NUM_SIG_FLAG_CTX][2];
	91	int lastXBits[10];
	92	int lastYBits[10];
	93	int greaterOneBits[NUM_ONE_FLAG_CTX][2];
	94	int levelAbsBits[NUM_ABS_FLAG_CTX][2];
	95	int blockCbpBits[NUM_QT_CBF_CTX][2];
	96	int blockRootCbpBits[2];
	97	};
	98
	99	class Entropy : public SyntaxElementWriter
	100	{
	101	public:
	102
103	uint64_t m_pad;
104	uint8_t m_contextState[160]; // MAX_OFF_CTX_MOD + padding
105
106	/* CABAC state */
107	uint32_t m_low;
108	uint32_t m_range;
109	uint32_t m_bufferedByte;
110	int m_numBufferedBytes;
111	int m_bitsLeft;
112	uint64_t m_fracBits;
113	EstBitsSbac m_estBitsSbac;
114
115	Entropy();
116
117	void setBitstream(Bitstream* p) { m_bitIf = p; }
118
119	uint32_t getNumberOfWrittenBits()
120	{
121	X265_CHECK(!m_bitIf, "bit counting mode expected\n");
122	return (uint32_t)(m_fracBits >> 15);
123	}
124
125	#if CHECKED_BUILD \|\| _DEBUG
126	bool m_valid;
127	void markInvalid() { m_valid = false; }
128	void markValid() { m_valid = true; }
129	#else
130	void markValid() { }
131	#endif
132	void zeroFract() { m_fracBits = 0; }
133	void resetBits();
134	void resetEntropy(const Slice& slice);
135
136	// SBAC RD
137	void load(const Entropy& src) { copyFrom(src); }
138	void store(Entropy& dest) const { dest.copyFrom(*this); }
139	void loadContexts(const Entropy& src) { copyContextsFrom(src); }
140	void loadIntraDirModeLuma(const Entropy& src);
141	void copyState(const Entropy& other);
142
143	void codeVPS(const VPS& vps);
144	void codeSPS(const SPS& sps, const ScalingList& scalingList, const ProfileTierLevel& ptl);
145	void codePPS(const PPS& pps);
146	void codeVUI(const VUI& vui);
147	void codeAUD(const Slice& slice);
148	void codeHrdParameters(const HRDInfo& hrd);
149
150	void codeSliceHeader(const Slice& slice, FrameData& encData);
151	void codeSliceHeaderWPPEntryPoints(const Slice& slice, const uint32_t *substreamSizes, uint32_t maxOffset);
152	void codeShortTermRefPicSet(const RPS& rps);
153	void finishSlice() { encodeBinTrm(1); finish(); dynamic_cast<Bitstream*>(m_bitIf)->writeByteAlignment(); }
154
155	void encodeCTU(const CUData& cu, const CUGeom& cuGeom);
72b9787e	156
b53f7c52 JB	157	void codeIntraDirLumaAng(const CUData& cu, uint32_t absPartIdx, bool isMultiple);
	158	void codeIntraDirChroma(const CUData& cu, uint32_t absPartIdx, uint32_t *chromaDirMode);
	159
72b9787e	160	void codeMergeIndex(const CUData& cu, uint32_t absPartIdx);
72b9787e JB	161	void codeMvd(const CUData& cu, uint32_t absPartIdx, int list);
	162
	163	void codePartSize(const CUData& cu, uint32_t absPartIdx, uint32_t depth);
72b9787e	164	void codePredInfo(const CUData& cu, uint32_t absPartIdx);
b53f7c52 JB	165	inline void codeQtCbfLuma(const CUData& cu, uint32_t absPartIdx, uint32_t tuDepth) { codeQtCbfLuma(cu.getCbf(absPartIdx, TEXT_LUMA, tuDepth), tuDepth); }
	166
	167	void codeQtCbfChroma(const CUData& cu, uint32_t absPartIdx, TextType ttype, uint32_t tuDepth, bool lowestLevel);
	168	void codeCoeff(const CUData& cu, uint32_t absPartIdx, bool& bCodeDQP, const uint32_t depthRange[2]);
72b9787e JB	169	void codeCoeffNxN(const CUData& cu, const coeff_t* coef, uint32_t absPartIdx, uint32_t log2TrSize, TextType ttype);
72b9787e JB	170
b53f7c52 JB	171	inline void codeSaoMerge(uint32_t code) { encodeBin(code, m_contextState[OFF_SAO_MERGE_FLAG_CTX]); }
	172	inline void codeMVPIdx(uint32_t symbol) { encodeBin(symbol, m_contextState[OFF_MVP_IDX_CTX]); }
	173	inline void codeMergeFlag(const CUData& cu, uint32_t absPartIdx) { encodeBin(cu.m_mergeFlag[absPartIdx], m_contextState[OFF_MERGE_FLAG_EXT_CTX]); }
	174	inline void codeSkipFlag(const CUData& cu, uint32_t absPartIdx) { encodeBin(cu.isSkipped(absPartIdx), m_contextState[OFF_SKIP_FLAG_CTX + cu.getCtxSkipFlag(absPartIdx)]); }
	175	inline void codeSplitFlag(const CUData& cu, uint32_t absPartIdx, uint32_t depth) { encodeBin(cu.m_cuDepth[absPartIdx] > depth, m_contextState[OFF_SPLIT_FLAG_CTX + cu.getCtxSplitFlag(absPartIdx, depth)]); }
	176	inline void codeTransformSubdivFlag(uint32_t symbol, uint32_t ctx) { encodeBin(symbol, m_contextState[OFF_TRANS_SUBDIV_FLAG_CTX + ctx]); }
	177	inline void codePredMode(int predMode) { encodeBin(predMode == MODE_INTRA ? 1 : 0, m_contextState[OFF_PRED_MODE_CTX]); }
	178	inline void codeCUTransquantBypassFlag(uint32_t symbol) { encodeBin(symbol, m_contextState[OFF_TQUANT_BYPASS_FLAG_CTX]); }
	179	inline void codeQtCbfLuma(uint32_t cbf, uint32_t tuDepth) { encodeBin(cbf, m_contextState[OFF_QT_CBF_CTX + !tuDepth]); }
	180	inline void codeQtCbfChroma(uint32_t cbf, uint32_t tuDepth) { encodeBin(cbf, m_contextState[OFF_QT_CBF_CTX + 2 + tuDepth]); }
	181	inline void codeQtRootCbf(uint32_t cbf) { encodeBin(cbf, m_contextState[OFF_QT_ROOT_CBF_CTX]); }
	182
	183	void codeSaoOffset(const SaoCtuParam& ctuParam, int plane);
72b9787e	184
b53f7c52	185	/* RDO functions */
72b9787e JB	186	void estBit(EstBitsSbac& estBitsSbac, uint32_t log2TrSize, bool bIsLuma) const;
	187	void estCBFBit(EstBitsSbac& estBitsSbac) const;
	188	void estSignificantCoeffGroupMapBit(EstBitsSbac& estBitsSbac, bool bIsLuma) const;
	189	void estSignificantMapBit(EstBitsSbac& estBitsSbac, uint32_t log2TrSize, bool bIsLuma) const;
	190	void estSignificantCoefficientsBit(EstBitsSbac& estBitsSbac, bool bIsLuma) const;
	191
b53f7c52 JB	192	inline uint32_t bitsIntraModeNonMPM() const { return bitsCodeBin(0, m_contextState[OFF_ADI_CTX]) + 5; }
	193	inline uint32_t bitsIntraModeMPM(const uint32_t preds[3], uint32_t dir) const { return bitsCodeBin(1, m_contextState[OFF_ADI_CTX]) + (dir == preds[0] ? 1 : 2); }
	194	inline uint32_t estimateCbfBits(uint32_t cbf, TextType ttype, uint32_t tuDepth) const { return bitsCodeBin(cbf, m_contextState[OFF_QT_CBF_CTX + ctxCbf[ttype][tuDepth]]); }
	195	uint32_t bitsInterMode(const CUData& cu, uint32_t absPartIdx, uint32_t depth) const;
	196	uint32_t bitsIntraMode(const CUData& cu, uint32_t absPartIdx) const
	197	{
	198	return bitsCodeBin(0, m_contextState[OFF_SKIP_FLAG_CTX + cu.getCtxSkipFlag(absPartIdx)]) + /* not skip */
	199	bitsCodeBin(1, m_contextState[OFF_PRED_MODE_CTX]); /* intra */
	200	}
	201
	202	/* these functions are only used to estimate the bits when cbf is 0 and will never be called when writing the bistream. */
	203	inline void codeQtRootCbfZero() { encodeBin(0, m_contextState[OFF_QT_ROOT_CBF_CTX]); }
	204
72b9787e JB	205	private:
	206
	207	/* CABAC private methods */
	208	void start();
	209	void finish();
	210
	211	void encodeBin(uint32_t binValue, uint8_t& ctxModel);
	212	void encodeBinEP(uint32_t binValue);
	213	void encodeBinsEP(uint32_t binValues, int numBins);
	214	void encodeBinTrm(uint32_t binValue);
	215
b53f7c52 JB	216	/* return the bits of encoding the context bin without updating */
	217	inline uint32_t bitsCodeBin(uint32_t binValue, uint32_t ctxModel) const
	218	{
	219	uint64_t fracBits = (m_fracBits & 32767) + sbacGetEntropyBits(ctxModel, binValue);
	220	return (uint32_t)(fracBits >> 15);
	221	}
	222
	223	void encodeCU(const CUData& ctu, const CUGeom &cuGeom, uint32_t absPartIdx, uint32_t depth, bool& bEncodeDQP);
	224	void finishCU(const CUData& ctu, uint32_t absPartIdx, uint32_t depth);
72b9787e JB	225
	226	void writeOut();
	227
	228	/* SBac private methods */
	229	void writeUnaryMaxSymbol(uint32_t symbol, uint8_t* scmModel, int offset, uint32_t maxSymbol);
	230	void writeEpExGolomb(uint32_t symbol, uint32_t count);
	231	void writeCoefRemainExGolomb(uint32_t symbol, const uint32_t absGoRice);
	232
	233	void codeProfileTier(const ProfileTierLevel& ptl);
	234	void codeScalingList(const ScalingList&);
	235	void codeScalingList(const ScalingList& scalingList, uint32_t sizeId, uint32_t listId);
	236
	237	void codePredWeightTable(const Slice& slice);
	238	void codeInterDir(const CUData& cu, uint32_t absPartIdx);
	239	void codePUWise(const CUData& cu, uint32_t absPartIdx);
72b9787e JB	240	void codeRefFrmIdxPU(const CUData& cu, uint32_t absPartIdx, int list);
	241	void codeRefFrmIdx(const CUData& cu, uint32_t absPartIdx, int list);
	242
	243	void codeSaoMaxUvlc(uint32_t code, uint32_t maxSymbol);
	244
	245	void codeDeltaQP(const CUData& cu, uint32_t absPartIdx);
	246	void codeLastSignificantXY(uint32_t posx, uint32_t posy, uint32_t log2TrSize, bool bIsLuma, uint32_t scanIdx);
	247	void codeTransformSkipFlags(const CUData& cu, uint32_t absPartIdx, uint32_t trSize, TextType ttype);
	248
b53f7c52 JB	249	void encodeTransform(const CUData& cu, uint32_t absPartIdx, uint32_t tuDepth, uint32_t log2TrSize,
b53f7c52 JB	250	bool& bCodeDQP, const uint32_t depthRange[2]);
72b9787e JB	251
	252	void copyFrom(const Entropy& src);
	253	void copyContextsFrom(const Entropy& src);
	254	};
	255	}
	256
	257	#endif // ifndef X265_ENTROPY_H