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openh264/codec/encoder/core/inc/rc.h

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/*!
* \copy
* Copyright (c) 2004-2013, 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.
*
*
* ratectl.c
*
* Abstract
* Include file for ratectl.c
*
* History
* 9/8/2004 Created
* 12/26/2011 Modified
*
*
*************************************************************************/
#ifndef RC_H
#define RC_H
#include "codec_app_def.h"
#include "svc_enc_macroblock.h"
#include "slice.h"
namespace WelsSVCEnc {
//trace
#define GOM_TRACE_FLAG 1
#define GOM_H_SCC 8
#define WELS_RC_DISABLE 0
#define WELS_RC_GOM 1
enum {
BITS_NORMAL,
BITS_LIMITED,
BITS_EXCEEDED,
};
enum {
//virtual gop size
VGOP_SIZE = 8,
//qp information
FIX_MIN_QP_MODE = 4, //qp <4 will cause level code overflow in cavlc coding which isn't suppored in baseline profile
FIX_MAX_QP_MODE = 51,
GOM_MIN_QP_MODE = 12,
GOM_MAX_QP_MODE = 36,
MAX_LOW_BR_QP = 42,
MIN_IDR_QP = 26,
MAX_IDR_QP = 32,
DELTA_QP = 2,
DELTA_QP_BGD_THD = 3,
//frame skip constants
SKIP_QP_90P = 24,
SKIP_QP_180P = 24,
SKIP_QP_360P = 31,
SKIP_QP_720P = 31,
LAST_FRAME_QP_RANGE_UPPER_MODE0 = 3,
LAST_FRAME_QP_RANGE_LOWER_MODE0 = 2,
LAST_FRAME_QP_RANGE_UPPER_MODE1 = 5,
LAST_FRAME_QP_RANGE_LOWER_MODE1 = 3,
MB_WIDTH_THRESHOLD_90P = 15,
MB_WIDTH_THRESHOLD_180P = 30,
MB_WIDTH_THRESHOLD_360P = 60,
//Mode 0 parameter
GOM_ROW_MODE0_90P = 2,
GOM_ROW_MODE0_180P = 2,
GOM_ROW_MODE0_360P = 4,
GOM_ROW_MODE0_720P = 4,
QP_RANGE_MODE0 = 3,
//Mode 1 parameter
GOM_ROW_MODE1_90P = 1,
GOM_ROW_MODE1_180P = 1,
GOM_ROW_MODE1_360P = 2,
GOM_ROW_MODE1_720P = 2,
QP_RANGE_UPPER_MODE1 = 9,
QP_RANGE_LOWER_MODE1 = 4,
QP_RANGE_INTRA_MODE1 = 3,
};
//bits allocation
#define MAX_BITS_VARY_PERCENTAGE 100 //bits vary range in percentage
#define VGOP_BITS_PERCENTAGE_DIFF 5
#define IDR_BITRATE_RATIO 4.0
#define FRAME_iTargetBits_VARY_RANGE 0.5
//R-Q Model
#define LINEAR_MODEL_DECAY_FACTOR 0.8
#define FRAME_CMPLX_RATIO_RANGE 0.1
#define SMOOTH_FACTOR_MIN_VALUE 0.02
//#define VGOP_BITS_MIN_RATIO 0.8
//skip and padding
#define SKIP_RATIO 0.5
#define PADDING_BUFFER_RATIO 0.5
#define PADDING_THRESHOLD 0.05
typedef struct TagRCSlicing {
int32_t iComplexityIndexSlice;
int32_t iCalculatedQpSlice;
int32_t iStartMbSlice;
int32_t iEndMbSlice;
int32_t iTotalQpSlice;
int32_t iTotalMbSlice;
int32_t iTargetBitsSlice;
int32_t iBsPosSlice;
int32_t iFrameBitsSlice;
int32_t iGomBitsSlice;
int32_t iGomTargetBits;
//int32_t gom_coded_mb;
} SRCSlicing;
typedef struct TagRCTemporal {
int32_t iMinBitsTl;
int32_t iMaxBitsTl;
double dTlayerWeight;
int32_t iGopBitsDq;
//P frame level R-Q Model
double dLinearCmplx;
int32_t iPFrameNum;
int32_t iFrameCmplxMean;
} SRCTemporal;
typedef struct TagWelsRc {
int32_t iRcVaryPercentage;
double dRcVaryRatio;
int32_t iInitialQp; //initial qp
int32_t iBitRate;
int32_t iPreviousBitrate;
int32_t iPreviousGopSize;
double fFrameRate;
double dBitsPerFrame;
double dPreviousFps;
// bits allocation and status
int32_t iRemainingBits;
int32_t iTargetBits;
int32_t iCurrentBitsLevel;//0:normal; 1:limited; 2:exceeded.
int32_t iIdrNum;
int32_t iIntraComplexity;
int32_t iIntraMbCount;
int8_t iTlOfFrames[VGOP_SIZE];
double dRemainingWeights;
int32_t iFrameDqBits;
double* pGomComplexity;
int32_t* pGomForegroundBlockNum;
int32_t* pCurrentFrameGomSad;
int32_t* pGomCost;
int32_t iAverageFrameQp;
int32_t iNumberMbFrame;
int32_t iNumberMbGom;
int32_t iSliceNum;
int32_t iGomSize;
int32_t iSkipFrameNum;
int32_t iFrameCodedInVGop;
int32_t iSkipFrameInVGop;
int32_t iGopNumberInVGop;
int32_t iGopIndexInVGop;
int32_t iSkipQpValue;
int32_t iQpRangeUpperInFrame;
int32_t iQpRangeLowerInFrame;
int32_t iMinQp;
int32_t iMaxQp;
//int32_t delta_adaptive_qp;
double dSkipBufferRatio;
double dQStep;
int32_t iFrameDeltaQpUpper;
int32_t iFrameDeltaQpLower;
int32_t iLastCalculatedQScale;
//for skip frame and padding
int32_t iBufferSizeSkip;
int32_t iBufferFullnessSkip;
int32_t iBufferSizePadding;
int32_t iBufferFullnessPadding;
int32_t iPaddingSize;
int32_t iPaddingBitrateStat;
SRCSlicing* pSlicingOverRc;
SRCTemporal* pTemporalOverRc;
} SWelsSvcRc;
typedef void (*PWelsRCPictureInitFunc) (void* pCtx);
typedef void (*PWelsRCPictureInfoUpdateFunc) (void* pCtx, int32_t iLayerSize);
typedef void (*PWelsRCMBInfoUpdateFunc) (void* pCtx, SMB* pCurMb, int32_t iCostLuma, SSlice* pSlice);
typedef void (*PWelsRCMBInitFunc) (void* pCtx, SMB* pCurMb, SSlice* pSlice);
typedef struct WelsRcFunc_s {
PWelsRCPictureInitFunc pfWelsRcPictureInit;
PWelsRCPictureInfoUpdateFunc pfWelsRcPictureInfoUpdate;
PWelsRCMBInitFunc pfWelsRcMbInit;
PWelsRCMBInfoUpdateFunc pfWelsRcMbInfoUpdate;
} SWelsRcFunc;
void WelsRcInitModule (void* pCtx, int32_t iModule);
void WelsRcFreeMemory (void* pCtx);
}
#endif //RC_H
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