ref: a01c926b158ed2d1903888c6a6ebb2ae06b09394
dir: /codec/decoder/core/inc/decoder_context.h/
/*!
* \copy
* Copyright (c) 2009-2013, Cisco Systems
* 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.
*
* 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 SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*
* \file decoder_context.h
*
* \brief mainly interface introduced in Wels decoder side
*
* \date 3/4/2009 Created
*
*************************************************************************************
*/
#ifndef WELS_DECODER_FRAMEWORK_H__
#define WELS_DECODER_FRAMEWORK_H__
#include "typedefs.h"
#include "utils.h"
#include "wels_const.h"
#include "wels_common_basis.h"
#include "wels_common_defs.h"
#include "codec_app_def.h"
#include "parameter_sets.h"
#include "nalu.h"
#include "dec_frame.h"
#include "pic_queue.h"
#include "vlc_decoder.h"
#include "fmo.h"
#include "crt_util_safe_x.h"
#include "mb_cache.h"
#include "expand_pic.h"
#include "mc.h"
#include "memory_align.h"
namespace WelsDec {
#define MAX_PRED_MODE_ID_I16x16 3
#define MAX_PRED_MODE_ID_CHROMA 3
#define MAX_PRED_MODE_ID_I4x4 8
#define WELS_QP_MAX 51
#define LONG_TERM_REF
typedef struct SWels_Cabac_Element {
uint8_t uiState;
uint8_t uiMPS;
} SWelsCabacCtx, *PWelsCabacCtx;
typedef struct {
uint64_t uiRange;
uint64_t uiOffset;
int32_t iBitsLeft;
uint8_t* pBuffStart;
uint8_t* pBuffCurr;
uint8_t* pBuffEnd;
} SWelsCabacDecEngine, *PWelsCabacDecEngine;
#define NEW_CTX_OFFSET_MB_TYPE_I 3
#define NEW_CTX_OFFSET_SKIP 11
#define NEW_CTX_OFFSET_SUBMB_TYPE 21
#define NEW_CTX_OFFSET_MVD 40
#define NEW_CTX_OFFSET_REF_NO 54
#define NEW_CTX_OFFSET_DELTA_QP 60
#define NEW_CTX_OFFSET_IPR 68
#define NEW_CTX_OFFSET_CIPR 64
#define NEW_CTX_OFFSET_CBP 73
#define NEW_CTX_OFFSET_CBF 85
#define NEW_CTX_OFFSET_MAP 105
#define NEW_CTX_OFFSET_LAST 166
#define NEW_CTX_OFFSET_ONE 227
#define NEW_CTX_OFFSET_ABS 232
#define NEW_CTX_OFFSET_TS_8x8_FLAG 399
#define CTX_NUM_MVD 7
#define CTX_NUM_CBP 4
// Table 9-34 in Page 270
#define NEW_CTX_OFFSET_TRANSFORM_SIZE_8X8_FLAG 399
#define NEW_CTX_OFFSET_MAP_8x8 402
#define NEW_CTX_OFFSET_LAST_8x8 417
#define NEW_CTX_OFFSET_ONE_8x8 426
#define NEW_CTX_OFFSET_ABS_8x8 431 // Puzzle, where is the definition?
typedef struct TagDataBuffer {
uint8_t* pHead;
uint8_t* pEnd;
uint8_t* pStartPos;
uint8_t* pCurPos;
} SDataBuffer;
//limit size for SPS PPS total permitted size for parse_only
#define SPS_PPS_BS_SIZE 128
typedef struct TagSpsBsInfo {
uint8_t pSpsBsBuf [SPS_PPS_BS_SIZE];
int32_t iSpsId;
uint16_t uiSpsBsLen;
} SSpsBsInfo;
typedef struct TagPpsBsInfo {
uint8_t pPpsBsBuf [SPS_PPS_BS_SIZE];
int32_t iPpsId;
uint16_t uiPpsBsLen;
} SPpsBsInfo;
//#ifdef __cplusplus
//extern "C" {
//#endif//__cplusplus
/*
* Need move below structures to function pointer to seperate module/file later
*/
//typedef int32_t (*rec_mb) (Mb *cur_mb, PWelsDecoderContext pCtx);
/*typedef for get intra predictor func pointer*/
typedef void (*PGetIntraPredFunc) (uint8_t* pPred, const int32_t kiLumaStride);
typedef void (*PIdctResAddPredFunc) (uint8_t* pPred, const int32_t kiStride, int16_t* pRs);
typedef void (*PIdctFourResAddPredFunc) (uint8_t* pPred, int32_t iStride, int16_t* pRs, const int8_t* pNzc);
typedef void (*PExpandPictureFunc) (uint8_t* pDst, const int32_t kiStride, const int32_t kiPicWidth,
const int32_t kiPicHeight);
typedef void (*PGetIntraPred8x8Func) (uint8_t* pPred, const int32_t kiLumaStride, bool bTLAvail, bool bTRAvail);
/**/
typedef struct TagRefPic {
PPicture pRefList[LIST_A][MAX_DPB_COUNT]; // reference picture marking plus FIFO scheme
PPicture pShortRefList[LIST_A][MAX_DPB_COUNT];
PPicture pLongRefList[LIST_A][MAX_DPB_COUNT];
uint8_t uiRefCount[LIST_A];
uint8_t uiShortRefCount[LIST_A];
uint8_t uiLongRefCount[LIST_A]; // dependend on ref pic module
int32_t iMaxLongTermFrameIdx;
} SRefPic, *PRefPic;
typedef void (*PCopyFunc) (uint8_t* pDst, int32_t iStrideD, uint8_t* pSrc, int32_t iStrideS);
typedef struct TagCopyFunc {
PCopyFunc pCopyLumaFunc;
PCopyFunc pCopyChromaFunc;
} SCopyFunc;
//deblock module defination
struct TagDeblockingFunc;
typedef struct tagDeblockingFilter {
uint8_t* pCsData[3]; // pointer to reconstructed picture data
int32_t iCsStride[2]; // Cs stride
EWelsSliceType eSliceType;
int8_t iSliceAlphaC0Offset;
int8_t iSliceBetaOffset;
int8_t iChromaQP[2];
int8_t iLumaQP;
struct TagDeblockingFunc* pLoopf;
} SDeblockingFilter, *PDeblockingFilter;
typedef void (*PDeblockingFilterMbFunc) (PDqLayer pCurDqLayer, PDeblockingFilter filter, int32_t boundry_flag);
typedef void (*PLumaDeblockingLT4Func) (uint8_t* iSampleY, int32_t iStride, int32_t iAlpha, int32_t iBeta,
int8_t* iTc);
typedef void (*PLumaDeblockingEQ4Func) (uint8_t* iSampleY, int32_t iStride, int32_t iAlpha, int32_t iBeta);
typedef void (*PChromaDeblockingLT4Func) (uint8_t* iSampleCb, uint8_t* iSampleCr, int32_t iStride, int32_t iAlpha,
int32_t iBeta, int8_t* iTc);
typedef void (*PChromaDeblockingEQ4Func) (uint8_t* iSampleCb, uint8_t* iSampleCr, int32_t iStride, int32_t iAlpha,
int32_t iBeta);
typedef void (*PChromaDeblockingLT4Func2) (uint8_t* iSampleCbr, int32_t iStride, int32_t iAlpha,
int32_t iBeta, int8_t* iTc);
typedef void (*PChromaDeblockingEQ4Func2) (uint8_t* iSampleCbr, int32_t iStride, int32_t iAlpha,
int32_t iBeta);
typedef struct TagDeblockingFunc {
PLumaDeblockingLT4Func pfLumaDeblockingLT4Ver;
PLumaDeblockingEQ4Func pfLumaDeblockingEQ4Ver;
PLumaDeblockingLT4Func pfLumaDeblockingLT4Hor;
PLumaDeblockingEQ4Func pfLumaDeblockingEQ4Hor;
PChromaDeblockingLT4Func pfChromaDeblockingLT4Ver;
PChromaDeblockingEQ4Func pfChromaDeblockingEQ4Ver;
PChromaDeblockingLT4Func pfChromaDeblockingLT4Hor;
PChromaDeblockingEQ4Func pfChromaDeblockingEQ4Hor;
PChromaDeblockingLT4Func2 pfChromaDeblockingLT4Ver2;
PChromaDeblockingEQ4Func2 pfChromaDeblockingEQ4Ver2;
PChromaDeblockingLT4Func2 pfChromaDeblockingLT4Hor2;
PChromaDeblockingEQ4Func2 pfChromaDeblockingEQ4Hor2;
} SDeblockingFunc, *PDeblockingFunc;
typedef void (*PWelsNonZeroCountFunc) (int8_t* pNonZeroCount);
typedef void (*PWelsBlockZeroFunc) (int16_t* block, int32_t stride);
typedef struct TagBlockFunc {
PWelsNonZeroCountFunc pWelsSetNonZeroCountFunc;
PWelsBlockZeroFunc pWelsBlockZero16x16Func;
PWelsBlockZeroFunc pWelsBlockZero8x8Func;
} SBlockFunc;
typedef void (*PWelsFillNeighborMbInfoIntra4x4Func) (PWelsNeighAvail pNeighAvail, uint8_t* pNonZeroCount,
int8_t* pIntraPredMode, PDqLayer pCurLayer);
typedef void (*PWelsMapNeighToSample) (PWelsNeighAvail pNeighAvail, int32_t* pSampleAvail);
typedef void (*PWelsMap16NeighToSample) (PWelsNeighAvail pNeighAvail, uint8_t* pSampleAvail);
typedef int32_t (*PWelsParseIntra4x4ModeFunc) (PWelsNeighAvail pNeighAvail, int8_t* pIntraPredMode, PBitStringAux pBs,
PDqLayer pCurDqLayer);
typedef int32_t (*PWelsParseIntra16x16ModeFunc) (PWelsNeighAvail pNeighAvail, PBitStringAux pBs, PDqLayer pCurDqLayer);
enum {
OVERWRITE_NONE = 0,
OVERWRITE_PPS = 1,
OVERWRITE_SPS = 1 << 1,
OVERWRITE_SUBSETSPS = 1 << 2
};
/*
* SWelsDecoderContext: to maintail all modules data over decoder@framework
*/
typedef struct TagWelsDecoderContext {
SLogContext sLogCtx;
// Input
void* pArgDec; // structured arguments for decoder, reserved here for extension in the future
SDataBuffer sRawData;
SDataBuffer sSavedData; //for parse only purpose
// Configuration
SDecodingParam* pParam;
uint32_t uiCpuFlag; // CPU compatibility detected
VIDEO_BITSTREAM_TYPE eVideoType; //indicate the type of video to decide whether or not to do qp_delta error detection.
bool bHaveGotMemory; // global memory for decoder context related ever requested?
int32_t iImgWidthInPixel; // width of image in pixel reconstruction picture to be output
int32_t iImgHeightInPixel;// height of image in pixel reconstruction picture to be output
int32_t iLastImgWidthInPixel; // width of image in last successful pixel reconstruction picture to be output
int32_t iLastImgHeightInPixel;// height of image in last successful pixel reconstruction picture to be output
bool bFreezeOutput; // indicating current frame freezing. Default: true
// Derived common elements
SNalUnitHeader sCurNalHead;
EWelsSliceType eSliceType; // Slice type
int32_t iFrameNum;
int32_t iPrevFrameNum; // frame number of previous frame well decoded for non-truncated mode yet
bool bLastHasMmco5; //
int32_t iErrorCode; // error code return while decoding in case packets lost
SFmo sFmoList[MAX_PPS_COUNT]; // list for FMO storage
PFmo pFmo; // current fmo context after parsed slice_header
int32_t iActiveFmoNum; // active count number of fmo context in list
/*needed info by decode slice level and mb level*/
int32_t
iDecBlockOffsetArray[24]; // address talbe for sub 4x4 block in intra4x4_mb, so no need to caculta the address every time.
struct {
int16_t* pMbType[LAYER_NUM_EXCHANGEABLE]; /* mb type */
int16_t (*pMv[LAYER_NUM_EXCHANGEABLE][LIST_A])[MB_BLOCK4x4_NUM][MV_A]; //[LAYER_NUM_EXCHANGEABLE MB_BLOCK4x4_NUM*]
int8_t (*pRefIndex[LAYER_NUM_EXCHANGEABLE][LIST_A])[MB_BLOCK4x4_NUM];
bool* pNoSubMbPartSizeLessThan8x8Flag[LAYER_NUM_EXCHANGEABLE];
bool* pTransformSize8x8Flag[LAYER_NUM_EXCHANGEABLE];
int8_t* pLumaQp[LAYER_NUM_EXCHANGEABLE]; /*mb luma_qp*/
int8_t (*pChromaQp[LAYER_NUM_EXCHANGEABLE])[2]; /*mb chroma_qp*/
int16_t (*pMvd[LAYER_NUM_EXCHANGEABLE][LIST_A])[MB_BLOCK4x4_NUM][MV_A]; //[LAYER_NUM_EXCHANGEABLE MB_BLOCK4x4_NUM*]
uint16_t* pCbfDc[LAYER_NUM_EXCHANGEABLE];
int8_t (*pNzc[LAYER_NUM_EXCHANGEABLE])[24];
int8_t (*pNzcRs[LAYER_NUM_EXCHANGEABLE])[24];
int16_t (*pScaledTCoeff[LAYER_NUM_EXCHANGEABLE])[MB_COEFF_LIST_SIZE]; /*need be aligned*/
int8_t (*pIntraPredMode[LAYER_NUM_EXCHANGEABLE])[8]; //0~3 top4x4 ; 4~6 left 4x4; 7 intra16x16
int8_t (*pIntra4x4FinalMode[LAYER_NUM_EXCHANGEABLE])[MB_BLOCK4x4_NUM];
uint8_t* pIntraNxNAvailFlag[LAYER_NUM_EXCHANGEABLE];
int8_t* pChromaPredMode[LAYER_NUM_EXCHANGEABLE];
int8_t* pCbp[LAYER_NUM_EXCHANGEABLE];
uint8_t (*pMotionPredFlag[LAYER_NUM_EXCHANGEABLE][LIST_A])[MB_PARTITION_SIZE]; // 8x8
int8_t (*pSubMbType[LAYER_NUM_EXCHANGEABLE])[MB_SUB_PARTITION_SIZE];
int32_t* pSliceIdc[LAYER_NUM_EXCHANGEABLE]; // using int32_t for slice_idc
int8_t* pResidualPredFlag[LAYER_NUM_EXCHANGEABLE];
int8_t* pInterPredictionDoneFlag[LAYER_NUM_EXCHANGEABLE];
bool* pMbCorrectlyDecodedFlag[LAYER_NUM_EXCHANGEABLE];
bool* pMbRefConcealedFlag[LAYER_NUM_EXCHANGEABLE];
uint32_t iMbWidth;
uint32_t iMbHeight;
} sMb;
// reconstruction picture
PPicture pDec; //pointer to current picture being reconstructed
// reference pictures
SRefPic sRefPic;
SVlcTable sVlcTable; // vlc table
SBitStringAux sBs;
int32_t iMaxBsBufferSizeInByte; //actual memory size for BS buffer
/* Global memory external */
SPosOffset sFrameCrop;
SSps sSpsBuffer[MAX_SPS_COUNT + 1];
SPps sPpsBuffer[MAX_PPS_COUNT + 1];
PSliceHeader pSliceHeader;
PPicBuff pPicBuff[LIST_A]; // Initially allocated memory for pictures which are used in decoding.
int32_t iPicQueueNumber;
SSubsetSps sSubsetSpsBuffer[MAX_SPS_COUNT + 1];
SNalUnit sPrefixNal;
PAccessUnit pAccessUnitList; // current access unit list to be performed
PSps pActiveLayerSps[MAX_LAYER_NUM];
PSps pSps; // used by current AU
PPps pPps; // used by current AU
// Memory for pAccessUnitList is dynamically held till decoder destruction.
PDqLayer pCurDqLayer; // current DQ layer representation, also carry reference base layer if applicable
PDqLayer pDqLayersList[LAYER_NUM_EXCHANGEABLE]; // DQ layers list with memory allocated
int32_t iPicWidthReq; // picture width have requested the memory
int32_t iPicHeightReq; // picture height have requested the memory
uint8_t uiTargetDqId; // maximal DQ ID in current access unit, meaning target layer ID
bool bAvcBasedFlag; // For decoding bitstream:
bool bEndOfStreamFlag; // Flag on end of stream requested by external application layer
bool bInstantDecFlag; // Flag for no-delay decoding
bool bInitialDqLayersMem; // dq layers related memory is available?
bool bOnlyOneLayerInCurAuFlag; //only one layer in current AU: 1
// for EC parameter sets
bool bSpsExistAheadFlag; // whether does SPS NAL exist ahead of sequence?
bool bSubspsExistAheadFlag;// whether does Subset SPS NAL exist ahead of sequence?
bool bPpsExistAheadFlag; // whether does PPS NAL exist ahead of sequence?
int32_t iSpsErrorIgnored;
int32_t iSubSpsErrorIgnored;
int32_t iPpsErrorIgnored;
bool bSpsAvailFlags[MAX_SPS_COUNT];
bool bSubspsAvailFlags[MAX_SPS_COUNT];
bool bPpsAvailFlags[MAX_PPS_COUNT];
int32_t iPPSLastInvalidId;
int32_t iPPSInvalidNum;
int32_t iSPSLastInvalidId;
int32_t iSPSInvalidNum;
int32_t iSubSPSLastInvalidId;
int32_t iSubSPSInvalidNum;
bool bReferenceLostAtT0Flag;
int32_t iTotalNumMbRec; //record current number of decoded MB
#ifdef LONG_TERM_REF
bool bParamSetsLostFlag; //sps or pps do not exist or not correct
bool bCurAuContainLtrMarkSeFlag; //current AU has the LTR marking syntax element, mark the previous frame or self
int32_t iFrameNumOfAuMarkedLtr; //if bCurAuContainLtrMarkSeFlag==true, SHOULD set this variable
uint16_t uiCurIdrPicId;
#endif
bool bNewSeqBegin;
bool bNextNewSeqBegin;
int iOverwriteFlags;
//for Parse only
bool bFramePending;
bool bFrameFinish;
int32_t iNalNum;
int32_t iMaxNalNum; //permitted max NAL num stored in parser
SSpsBsInfo sSpsBsInfo [MAX_SPS_COUNT];
SSpsBsInfo sSubsetSpsBsInfo [MAX_PPS_COUNT];
SPpsBsInfo sPpsBsInfo [MAX_PPS_COUNT];
SParserBsInfo* pParserBsInfo;
PPicture pPreviousDecodedPictureInDpb; //pointer to previously decoded picture in DPB for error concealment
PGetIntraPredFunc pGetI16x16LumaPredFunc[7]; //h264_predict_copy_16x16;
PGetIntraPredFunc pGetI4x4LumaPredFunc[14]; // h264_predict_4x4_t
PGetIntraPredFunc pGetIChromaPredFunc[7]; // h264_predict_8x8_t
PIdctResAddPredFunc pIdctResAddPredFunc;
PIdctFourResAddPredFunc pIdctFourResAddPredFunc;
SMcFunc sMcFunc;
//Transform8x8
PGetIntraPred8x8Func pGetI8x8LumaPredFunc[14];
PIdctResAddPredFunc pIdctResAddPredFunc8x8;
//For error concealment
SCopyFunc sCopyFunc;
/* For Deblocking */
SDeblockingFunc sDeblockingFunc;
SExpandPicFunc sExpandPicFunc;
/* For Block */
SBlockFunc sBlockFunc;
int32_t iCurSeqIntervalTargetDependId;
int32_t iCurSeqIntervalMaxPicWidth;
int32_t iCurSeqIntervalMaxPicHeight;
PWelsFillNeighborMbInfoIntra4x4Func pFillInfoCacheIntraNxNFunc;
PWelsMapNeighToSample pMapNxNNeighToSampleFunc;
PWelsMap16NeighToSample pMap16x16NeighToSampleFunc;
//feedback whether or not have VCL in current AU, and the temporal ID
int32_t iFeedbackVclNalInAu;
int32_t iFeedbackTidInAu;
int32_t iFeedbackNalRefIdc;
bool bAuReadyFlag; // true: one au is ready for decoding; false: default value
bool bPrintFrameErrorTraceFlag; //true: can print info for upper layer
int32_t iIgnoredErrorInfoPacketCount; //store the packet number with error decoding info
//trace handle
void* pTraceHandle;
//Save the last nal header info
SNalUnitHeaderExt sLastNalHdrExt;
SSliceHeader sLastSliceHeader;
SWelsCabacCtx sWelsCabacContexts[4][WELS_QP_MAX + 1][WELS_CONTEXT_COUNT];
bool bCabacInited;
SWelsCabacCtx pCabacCtx[WELS_CONTEXT_COUNT];
PWelsCabacDecEngine pCabacDecEngine;
double dDecTime;
SDecoderStatistics sDecoderStatistics;// For real time debugging
int32_t iMbEcedNum;
int32_t iMbEcedPropNum;
int32_t iMbNum;
bool bMbRefConcealed;
bool bRPLRError;
int32_t iECMVs[16][2];
PPicture pECRefPic[16];
unsigned long long uiTimeStamp;
// To support scaling list HP
uint16_t pDequant_coeff_buffer4x4[6][52][16];
uint16_t pDequant_coeff_buffer8x8[6][52][64];
uint16_t (*pDequant_coeff4x4[6])[16];// 4x4 sclaing list value pointer
uint16_t (*pDequant_coeff8x8[6])[64];//64 residual coeff ,with 6 kinds of residual type, 52 qp level
int iDequantCoeffPpsid;//When a new pps actived, reinitialised the scaling list value
bool bDequantCoeff4x4Init;
bool bUseScalingList;
CMemoryAlign* pMemAlign;
} SWelsDecoderContext, *PWelsDecoderContext;
static inline void ResetActiveSPSForEachLayer (PWelsDecoderContext pCtx) {
if (pCtx->iTotalNumMbRec == 0) {
for (int i = 0; i < MAX_LAYER_NUM; i++) {
pCtx->pActiveLayerSps[i] = NULL;
}
}
}
//#ifdef __cplusplus
//}
//#endif//__cplusplus
} // namespace WelsDec
#endif//WELS_DECODER_FRAMEWORK_H__