ref: 6714b8ae993b5e049262444a9f17d9552188a68f
dir: /codec/encoder/core/inc/wels_preprocess.h/
/*!
* \copy
* Copyright (c) 2011-2013, 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 wels_preprocess.h
*
* \brief interface of video pre-process plugins
*
* \date 03/15/2011
*
* \description : this class is designed as an interface to unify video pre-processing
* class implement sets such as denoise,colorspace conversion etc...
*
*************************************************************************************
*/
#ifndef WELS_PREPROCESS_H
#define WELS_PREPROCESS_H
#include "typedefs.h"
#include "picture.h"
#include "wels_const.h"
#include "IWelsVP.h"
#include "param_svc.h"
namespace WelsSVCEnc {
typedef struct TagWelsEncCtx sWelsEncCtx;
typedef struct {
SPicture* pScaledInputPicture;
int32_t iScaledWidth[MAX_DEPENDENCY_LAYER];
int32_t iScaledHeight[MAX_DEPENDENCY_LAYER];
} Scaled_Picture;
typedef struct {
SVAACalcResult sVaaCalcInfo;
SAdaptiveQuantizationParam sAdaptiveQuantParam;
SComplexityAnalysisParam sComplexityAnalysisParam;
int32_t iPicWidth; // maximal iWidth of picture in samples for svc coding
int32_t iPicHeight; // maximal iHeight of picture in samples for svc coding
int32_t iPicStride; //luma
int32_t iPicStrideUV;
uint8_t* pRefY; //pRef
uint8_t* pCurY; //cur
uint8_t* pRefU; //pRef
uint8_t* pCurU; //cur
uint8_t* pRefV; //pRef
uint8_t* pCurV; //cur
int8_t* pVaaBackgroundMbFlag;
uint8_t uiValidLongTermPicIdx;
uint8_t uiMarkLongTermPicIdx;
bool bSceneChangeFlag;
bool bIdrPeriodFlag;
} SVAAFrameInfo;
class CWelsLib {
public:
CWelsLib (sWelsEncCtx* pEncCtx);
virtual ~CWelsLib();
int32_t CreateIface (IWelsVP** ppInterfaceVp);
int32_t DestroyIface (IWelsVP* pInterfaceVp);
protected:
void* QueryFunction (const char* pName);
private:
void* m_pVpLib;
void* m_pInterface[2];
};
class CWelsPreProcess {
public:
CWelsPreProcess (sWelsEncCtx* pEncCtx);
virtual ~CWelsPreProcess();
public:
int32_t WelsPreprocessReset (sWelsEncCtx* pEncCtx);
int32_t AllocSpatialPictures (sWelsEncCtx* pCtx, SWelsSvcCodingParam* pParam);
void FreeSpatialPictures (sWelsEncCtx* pCtx);
int32_t BuildSpatialPicList (sWelsEncCtx* pEncCtx, const SSourcePicture* kpSrcPic);
int32_t AnalyzeSpatialPic (sWelsEncCtx* pEncCtx, const int32_t kiDIdx);
int32_t UpdateSpatialPictures(sWelsEncCtx* pEncCtx, SWelsSvcCodingParam* pParam, const int8_t iCurTid, const int32_t d_idx);
private:
int32_t WelsPreprocessCreate();
int32_t WelsPreprocessDestroy();
int32_t InitLastSpatialPictures (sWelsEncCtx* pEncCtx);
private:
int32_t SingleLayerPreprocess (sWelsEncCtx* pEncCtx, const SSourcePicture* kpSrc, Scaled_Picture* m_sScaledPicture);
void BilateralDenoising (SPicture* pSrc, const int32_t iWidth, const int32_t iHeight);
bool DetectSceneChange (SPicture* pCurPicture, SPicture* pRefPicture);
int32_t DownsamplePadding (SPicture* pSrc, SPicture* pDstPic, int32_t iSrcWidth, int32_t iSrcHeight,
int32_t iShrinkWidth, int32_t iShrinkHeight, int32_t iTargetWidth, int32_t iTargetHeight);
void VaaCalculation (SVAAFrameInfo* pVaaInfo, SPicture* pCurPicture, SPicture* pRefPicture, bool bCalculateSQDiff,
bool bCalculateVar, bool bCalculateBGD);
void BackgroundDetection (SVAAFrameInfo* pVaaInfo, SPicture* pCurPicture, SPicture* pRefPicture, bool bDetectFlag);
void AdaptiveQuantCalculation (SVAAFrameInfo* pVaaInfo, SPicture* pCurPicture, SPicture* pRefPicture);
void AnalyzePictureComplexity (sWelsEncCtx* pCtx, SPicture* pCurPicture, SPicture* pRefPicture,
const int32_t kiDependencyId, const bool kbCalculateBGD);
void Padding (uint8_t* pSrcY, uint8_t* pSrcU, uint8_t* pSrcV, int32_t iStrideY, int32_t iStrideUV,
int32_t iActualWidth, int32_t iPaddingWidth, int32_t iActualHeight, int32_t iPaddingHeight);
void SetRefMbType (sWelsEncCtx* pCtx, uint32_t** pRefMbTypeArray, int32_t iRefPicType);
int32_t ColorspaceConvert (SWelsSvcCodingParam* pSvcParam, SPicture* pDstPic, const SSourcePicture* kpSrc,
const int32_t kiWidth, const int32_t kiHeight);
void WelsMoveMemoryWrapper (SWelsSvcCodingParam* pSvcParam, SPicture* pDstPic, const SSourcePicture* kpSrc,
const int32_t kiWidth, const int32_t kiHeight);
private:
Scaled_Picture m_sScaledPicture;
SPicture* m_pLastSpatialPicture[MAX_DEPENDENCY_LAYER][2];
IWelsVP* m_pInterfaceVp;
CWelsLib* m_pEncLib;
sWelsEncCtx* m_pEncCtx;
bool m_bInitDone;
/* For Downsampling & VAA I420 based source pictures */
SPicture* m_pSpatialPic[MAX_DEPENDENCY_LAYER][MAX_TEMPORAL_LEVEL + 1 +
LONG_TERM_REF_NUM]; // need memory requirement with total number of (log2(uiGopSize)+1+1+long_term_ref_num)
uint8_t m_uiSpatialLayersInTemporal[MAX_DEPENDENCY_LAYER];
uint8_t m_uiSpatialPicNum[MAX_DEPENDENCY_LAYER];
};
}
#endif