484 lines
19 KiB
C++
484 lines
19 KiB
C++
/*!
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* \copy
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* Copyright (c) 2009-2013, Cisco Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*
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* \file param_svc.h
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*
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* \brief Configurable parameters in H.264/SVC Encoder
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*
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* \date 4/20/2009 Created
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*
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*************************************************************************************
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*/
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#if !defined(WELS_ENCODER_PARAMETER_SVC_H__)
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#define WELS_ENCODER_PARAMETER_SVC_H__
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#include <string.h>
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#include <math.h>
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#include "typedefs.h"
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#include "codec_def.h"
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#include "macros.h"
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#include "wels_const.h"
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#include "wels_common_basis.h"
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#include "rc.h"
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#include "svc_enc_slice_segment.h"
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#include "as264_common.h"
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namespace WelsSVCEnc {
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#define INVALID_TEMPORAL_ID ((uint8_t)0xff)
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extern const uint8_t g_kuiTemporalIdListTable[MAX_TEMPORAL_LEVEL][MAX_GOP_SIZE + 1];
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/*!
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* \brief get Logarithms base 2 of (upper/base)
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* \param base based scaler
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* \param upper input upper value
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* \return 2 based scaling factor
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*/
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static __inline uint32_t GetLogFactor (real32_t base, real32_t upper) {
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const double dLog2factor = log10 (1.0 * upper / base) / log10 (2.0);
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const double dEpsilon = 0.0001;
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const double dRound = floor (dLog2factor + 0.5);
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if (dLog2factor < dRound + dEpsilon && dRound < dLog2factor + dEpsilon) {
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return (uint32_t) (dRound);
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}
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return UINT_MAX;
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}
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/*
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* Dependency Layer Parameter
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*/
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typedef struct TagDLayerParam {
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int32_t iActualWidth; // input source picture actual width
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int32_t iActualHeight; // input source picture actual height
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int32_t iFrameWidth; // frame width
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int32_t iFrameHeight; // frame height
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int32_t iSpatialBitrate;
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/* temporal settings related */
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int32_t iTemporalResolution;
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int32_t iDecompositionStages;
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uint8_t uiCodingIdx2TemporalId[ (1 << MAX_TEMPORAL_LEVEL) + 1];
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uint8_t uiProfileIdc; // value of profile IDC (0 for auto-detection)
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int8_t iHighestTemporalId;
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// uint8_t uiDependencyId;
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int8_t iDLayerQp;
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SMulSliceOption sMso; // multiple slice options
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float fInputFrameRate; // input frame rate
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float fOutputFrameRate; // output frame rate
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#ifdef ENABLE_FRAME_DUMP
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str_t sRecFileName[MAX_FNAME_LEN]; // file to be constructed
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#endif//ENABLE_FRAME_DUMP
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} SDLayerParam;
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/*
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* Cisco OpenH264 Encoder Parameter Configuration
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*/
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typedef struct TagWelsSvcCodingParam {
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SDLayerParam sDependencyLayers[MAX_DEPENDENCY_LAYER];
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/* General */
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#ifdef ENABLE_TRACE_FILE
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str_t sTracePath[MAX_FNAME_LEN]; // log file for wels encoder
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#endif
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uint32_t uiGopSize; // GOP size (at maximal frame rate: 16)
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uint32_t uiIntraPeriod; // intra period (multiple of GOP size as desired)
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int32_t iNumRefFrame; // number of reference frame used
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int32_t iActualPicWidth; // actual input picture width
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int32_t iActualPicHeight; // actual input picture height
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struct {
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int32_t iLeft;
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int32_t iTop;
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int32_t iWidth;
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int32_t iHeight;
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} SUsedPicRect; // the rect in input picture that encoder actually used
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str_t* pCurPath; // record current lib path such as:/pData/pData/com.wels.enc/lib/
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float fMaxFrameRate; // maximal frame rate [Hz / fps]
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int32_t iInputCsp; // color space of input sequence
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uint32_t uiFrameToBeCoded; // frame to be encoded (at input frame rate)
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int32_t iTargetBitrate; // overall target bitrate introduced in RC module
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int16_t iMultipleThreadIdc; // 1 # 0: auto(dynamic imp. internal encoder); 1: multiple threads imp. disabled; > 1: count number of threads;
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int16_t iCountThreadsNum; // # derived from disable_multiple_slice_idc (=0 or >1) means;
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int32_t iLTRRefNum;
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uint32_t uiLtrMarkPeriod; //the min distance of two int32_t references
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bool_t bDeblockingParallelFlag; // deblocking filter parallelization control flag
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bool_t bMgsT0OnlyStrategy; //MGS_T0_only_strategy
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bool_t bEnableSSEI;
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bool_t bEnableFrameCroppingFlag; // enable frame cropping flag: TRUE alwayse in application
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bool_t bEnableCropPic; // enable cropping source picture. , 8/25/2010
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// FALSE: Streaming Video Sharing; TRUE: Video Conferencing Meeting;
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int8_t iDecompStages; // GOP size dependency
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/* Deblocking loop filter */
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int8_t iLoopFilterDisableIdc; // 0: on, 1: off, 2: on except for slice boundaries
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int8_t iLoopFilterAlphaC0Offset;// AlphaOffset: valid range [-6, 6], default 0
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int8_t iLoopFilterBetaOffset; // BetaOffset: valid range [-6, 6], default 0
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int8_t iInterLayerLoopFilterDisableIdc; // Employed based upon inter-layer, same comment as above
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int8_t iInterLayerLoopFilterAlphaC0Offset; // InterLayerLoopFilterAlphaC0Offset
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int8_t iInterLayerLoopFilterBetaOffset; // InterLayerLoopFilterBetaOffset
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/* Rate Control */
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bool_t bEnableRc;
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int8_t iRCMode;
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int8_t iPaddingFlag;
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/* denoise control */
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bool_t bEnableDenoise;
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/* scene change detection control */
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bool_t bEnableSceneChangeDetect;
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// background detection control
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bool_t bEnableBackgroundDetection;
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/* adaptive quantization control */
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bool_t bEnableAdaptiveQuant;
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/* long term reference control */
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bool_t bEnableLongTermReference;
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/* pSps pPps id addition control */
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bool_t bEnableSpsPpsIdAddition;
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/* Layer definition */
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bool_t bPrefixNalAddingCtrl;
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int8_t iNumDependencyLayer; // number of dependency(Spatial/CGS) layers used to be encoded
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int8_t iNumTemporalLayer; // number of temporal layer specified
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public:
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TagWelsSvcCodingParam (const bool_t kbEnableRc = true) {
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FillDefault (kbEnableRc);
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}
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~TagWelsSvcCodingParam() {}
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void FillDefault (const bool_t kbEnableRc) {
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uiGopSize = 1; // GOP size (at maximal frame rate: 16)
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uiIntraPeriod = 0; // intra period (multiple of GOP size as desired)
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iNumRefFrame = MIN_REF_PIC_COUNT; // number of reference frame used
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iActualPicWidth = 0; // actual input picture width
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iActualPicHeight = 0; // actual input picture height
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SUsedPicRect.iLeft =
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SUsedPicRect.iTop =
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SUsedPicRect.iWidth =
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SUsedPicRect.iHeight = 0; // the rect in input picture that encoder actually used
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pCurPath = NULL; // record current lib path such as:/pData/pData/com.wels.enc/lib/
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fMaxFrameRate = MAX_FRAME_RATE; // maximal frame rate [Hz / fps]
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iInputCsp = videoFormatI420; // input sequence color space in default
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uiFrameToBeCoded = (uint32_t) - 1; // frame to be encoded (at input frame rate)
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iTargetBitrate = 0; // overall target bitrate introduced in RC module
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bDeblockingParallelFlag = false; // deblocking filter parallelization control flag
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#ifdef MT_ENABLED
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iMultipleThreadIdc = 0; // auto to detect cpu cores inside
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#else
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iMultipleThreadIdc =
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1; // 1 # 0: auto(dynamic imp. internal encoder); 1: multiple threads imp. disabled; > 1: count number of threads;
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#endif//MT_ENABLED
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iCountThreadsNum = 1; // # derived from disable_multiple_slice_idc (=0 or >1) means;
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iLTRRefNum = 0;
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uiLtrMarkPeriod = 30; //the min distance of two int32_t references
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bMgsT0OnlyStrategy =
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true; // Strategy of have MGS only at T0 frames (0: do not use this strategy; 1: use this strategy)
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bEnableSSEI = true;
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bEnableFrameCroppingFlag = true; // enable frame cropping flag: TRUE alwayse in application
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bEnableCropPic = true; // enable cropping source picture. , 8/25/2010
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// FALSE: Streaming Video Sharing; TRUE: Video Conferencing Meeting;
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iDecompStages = 0; // GOP size dependency, unknown here and be revised later
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/* Deblocking loop filter */
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iLoopFilterDisableIdc = 1; // 0: on, 1: off, 2: on except for slice boundaries
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iLoopFilterAlphaC0Offset = 0; // AlphaOffset: valid range [-6, 6], default 0
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iLoopFilterBetaOffset = 0; // BetaOffset: valid range [-6, 6], default 0
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iInterLayerLoopFilterDisableIdc = 1; // Employed based upon inter-layer, same comment as above
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iInterLayerLoopFilterAlphaC0Offset = 0; // InterLayerLoopFilterAlphaC0Offset
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iInterLayerLoopFilterBetaOffset = 0; // InterLayerLoopFilterBetaOffset
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/* Rate Control */
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bEnableRc = kbEnableRc;
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iRCMode = 0;
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iPaddingFlag = 0;
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bEnableDenoise = false; // denoise control
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bEnableSceneChangeDetect = true; // scene change detection control
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bEnableBackgroundDetection = true; // background detection control
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bEnableAdaptiveQuant = true; // adaptive quantization control
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bEnableLongTermReference = false; // long term reference control
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bEnableSpsPpsIdAddition = true; // pSps pPps id addition control
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bPrefixNalAddingCtrl = true; // prefix NAL adding control
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iNumDependencyLayer = 0; // number of dependency(Spatial/CGS) layers used to be encoded
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iNumTemporalLayer = 0; // number of temporal layer specified
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}
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int32_t ParamTranscode (SVCEncodingParam& pCodingParam, const bool_t kbEnableRc = true) {
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pCodingParam.fFrameRate = WELS_CLIP3 (pCodingParam.fFrameRate, MIN_FRAME_RATE, MAX_FRAME_RATE);
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iInputCsp = pCodingParam.iInputCsp; // color space of input sequence
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uiFrameToBeCoded = (uint32_t) -
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1; // frame to be encoded (at input frame rate), -1 dependents on length of input sequence
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iActualPicWidth = pCodingParam.iPicWidth;
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iActualPicHeight = pCodingParam.iPicHeight;
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SUsedPicRect.iLeft = 0;
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SUsedPicRect.iTop = 0;
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SUsedPicRect.iWidth = ((iActualPicWidth >> 1) << 1);
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SUsedPicRect.iHeight = ((iActualPicHeight >> 1) << 1);
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/* Deblocking loop filter */
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#ifdef MT_ENABLED
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iLoopFilterDisableIdc = 2;//pCodingParam.iLoopFilterDisableIdc; // 0: on, 1: off, 2: on except for slice boundaries,
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#else
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iLoopFilterDisableIdc = 0; // 0: on, 1: off, 2: on except for slice boundaries
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#endif
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iLoopFilterAlphaC0Offset = 0; // AlphaOffset: valid range [-6, 6], default 0
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iLoopFilterBetaOffset = 0; // BetaOffset: valid range [-6, 6], default 0
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iInterLayerLoopFilterDisableIdc = iLoopFilterDisableIdc; // Employed based upon inter-layer, same comment as above
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iInterLayerLoopFilterAlphaC0Offset = 0;
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iInterLayerLoopFilterBetaOffset = 0;
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bEnableFrameCroppingFlag = true;
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/* Rate Control */
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bEnableRc = kbEnableRc;
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if (pCodingParam.iRCMode != RC_MODE0 && pCodingParam.iRCMode != RC_MODE1)
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iRCMode = RC_MODE1;
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else
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iRCMode = pCodingParam.iRCMode; // rc mode
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iPaddingFlag = pCodingParam.iPaddingFlag;
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iTargetBitrate = pCodingParam.iTargetBitrate; // target bitrate
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/* Denoise Control */
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bEnableDenoise = pCodingParam.bEnableDenoise ? true : false; // Denoise Control // only support 0 or 1 now
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/* Scene change detection control */
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bEnableSceneChangeDetect = true;
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/* Background detection Control */
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bEnableBackgroundDetection = pCodingParam.bEnableBackgroundDetection ? true : false;
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/* Adaptive quantization control */
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bEnableAdaptiveQuant = pCodingParam.bEnableAdaptiveQuant ? true : false;
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/* Enable cropping source picture */
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bEnableCropPic = pCodingParam.bEnableCropPic ? true : false;
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/* Enable int32_t term reference */
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bEnableLongTermReference = pCodingParam.bEnableLongTermReference ? true : false;
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uiLtrMarkPeriod = pCodingParam.iLtrMarkPeriod;
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/* For ssei information */
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bEnableSSEI = true;
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/* Layer definition */
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iNumDependencyLayer = (int8_t)WELS_CLIP3 (pCodingParam.iSpatialLayerNum, 1,
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MAX_DEPENDENCY_LAYER); // number of dependency(Spatial/CGS) layers used to be encoded
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pCodingParam.iTemporalLayerNum = (int8_t)WELS_CLIP3 (pCodingParam.iTemporalLayerNum, 1,
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MAX_TEMPORAL_LEVEL); // safe valid iTemporalLayerNum
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iNumTemporalLayer = (int8_t)
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pCodingParam.iTemporalLayerNum;//(int8_t)WELS_CLIP3(pCodingParam.iTemporalLayerNum, 1, MAX_TEMPORAL_LEVEL);// number of temporal layer specified
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uiGopSize = 1 << (iNumTemporalLayer - 1); // Override GOP size based temporal layer
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iDecompStages = iNumTemporalLayer - 1; // WELS_LOG2( uiGopSize );// GOP size dependency
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uiIntraPeriod = pCodingParam.iIntraPeriod;// intra period (multiple of GOP size as desired)
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if (uiIntraPeriod == (uint32_t) (-1))
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uiIntraPeriod = 0;
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else if (uiIntraPeriod & uiGopSize) // none multiple of GOP size
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uiIntraPeriod = ((uiIntraPeriod + uiGopSize - 1) / uiGopSize) * uiGopSize;
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iLTRRefNum = bEnableLongTermReference ? LONG_TERM_REF_NUM : 0;
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iNumRefFrame = ((uiGopSize >> 1) > 1) ? ((uiGopSize >> 1) + iLTRRefNum) : (MIN_REF_PIC_COUNT + iLTRRefNum);
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iNumRefFrame = WELS_CLIP3 (iNumRefFrame, MIN_REF_PIC_COUNT, MAX_REFERENCE_PICTURE_COUNT_NUM);
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uiLtrMarkPeriod = pCodingParam.iLtrMarkPeriod;
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bPrefixNalAddingCtrl = pCodingParam.bPrefixNalAddingCtrl;
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bEnableSpsPpsIdAddition =
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pCodingParam.bEnableSpsPpsIdAddition;//For SVC meeting application, to avoid mosaic issue caused by cross-IDR reference.
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//SHOULD enable this feature.
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SDLayerParam* pDlp = &sDependencyLayers[0];
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float fMaxFr = .0f;
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uint8_t uiProfileIdc = PRO_BASELINE;
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int8_t iIdxSpatial = 0;
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while (iIdxSpatial < iNumDependencyLayer) {
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pDlp->uiProfileIdc = uiProfileIdc;
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pCodingParam.sSpatialLayers[iIdxSpatial].fFrameRate = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].fFrameRate,
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MIN_FRAME_RATE, pCodingParam.fFrameRate);
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pDlp->fInputFrameRate =
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pDlp->fOutputFrameRate = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].fFrameRate, MIN_FRAME_RATE,
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MAX_FRAME_RATE);
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if (pDlp->fInputFrameRate > fMaxFr + EPSN)
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fMaxFr = pDlp->fInputFrameRate;
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#ifdef ENABLE_FRAME_DUMP
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pDlp->sRecFileName[0] = '\0'; // file to be constructed
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#endif//ENABLE_FRAME_DUMP
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pDlp->iFrameWidth = pCodingParam.sSpatialLayers[iIdxSpatial].iVideoWidth; // frame width
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pDlp->iFrameHeight = pCodingParam.sSpatialLayers[iIdxSpatial].iVideoHeight;// frame height
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pDlp->iSpatialBitrate =
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pCodingParam.sSpatialLayers[iIdxSpatial].iSpatialBitrate; // target bitrate for current spatial layer
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//multi slice
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pDlp->sMso.uiSliceMode = (SliceMode)pCodingParam.sSpatialLayers[iIdxSpatial].sSliceCfg.uiSliceMode;
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pDlp->sMso.sSliceArgument.uiSliceSizeConstraint
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= (uint32_t) (pCodingParam.sSpatialLayers[iIdxSpatial].sSliceCfg.sSliceArgument.uiSliceSizeConstraint);
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pDlp->sMso.sSliceArgument.iSliceNum
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= pCodingParam.sSpatialLayers[iIdxSpatial].sSliceCfg.sSliceArgument.uiSliceNum;
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const int32_t kiLesserSliceNum = ((MAX_SLICES_NUM < MAX_SLICES_NUM_TMP) ? MAX_SLICES_NUM : MAX_SLICES_NUM_TMP);
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memcpy (pDlp->sMso.sSliceArgument.uiSliceMbNum,
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pCodingParam.sSpatialLayers[iIdxSpatial].sSliceCfg.sSliceArgument.uiSliceMbNum, // confirmed_safe_unsafe_usage
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kiLesserSliceNum * sizeof (uint32_t)) ;
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pDlp->iDLayerQp = SVC_QUALITY_BASE_QP;
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uiProfileIdc = PRO_SCALABLE_BASELINE;
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++ pDlp;
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++ iIdxSpatial;
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}
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fMaxFrameRate = fMaxFr;
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SetActualPicResolution();
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return 0;
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}
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// assuming that the width/height ratio of all spatial layers are the same
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void SetActualPicResolution() {
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int32_t iSpatialIdx = iNumDependencyLayer - 1;
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SDLayerParam* pDlayer = &sDependencyLayers[iSpatialIdx];
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for (; iSpatialIdx >= 0; iSpatialIdx --) {
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pDlayer = &sDependencyLayers[iSpatialIdx];
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pDlayer->iActualWidth = pDlayer->iFrameWidth;
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pDlayer->iActualHeight = pDlayer->iFrameHeight;
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pDlayer->iFrameWidth = WELS_ALIGN (pDlayer->iActualWidth, MB_WIDTH_LUMA);
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pDlayer->iFrameHeight = WELS_ALIGN (pDlayer->iActualHeight, MB_HEIGHT_LUMA);
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}
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}
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/*!
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* \brief determined key coding tables for temporal scalability, uiProfileIdc etc for each spatial layer settings
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* \param SWelsSvcCodingParam, and carried with known GOP size, max, input and output frame rate of each spatial
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* \return NONE (should ensure valid parameter before this procedure)
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*/
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void DetermineTemporalSettings() {
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const int32_t iDecStages = WELS_LOG2 (
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uiGopSize); // (int8_t)GetLogFactor(1.0f, 1.0f * pcfg->uiGopSize); //log2(uiGopSize)
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const uint8_t* pTemporalIdList = &g_kuiTemporalIdListTable[iDecStages][0];
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SDLayerParam* pDlp = &sDependencyLayers[0];
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uint8_t uiProfileIdc = PRO_BASELINE;
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int8_t i = 0;
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|
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while (i < iNumDependencyLayer) {
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|
const uint32_t kuiLogFactorInOutRate = GetLogFactor (pDlp->fOutputFrameRate, pDlp->fInputFrameRate);
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const uint32_t kuiLogFactorMaxInRate = GetLogFactor (pDlp->fInputFrameRate, fMaxFrameRate);
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int32_t iNotCodedMask = 0;
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int8_t iMaxTemporalId = 0;
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|
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memset (pDlp->uiCodingIdx2TemporalId, INVALID_TEMPORAL_ID, sizeof (pDlp->uiCodingIdx2TemporalId));
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pDlp->uiProfileIdc = uiProfileIdc; // PRO_BASELINE, PRO_SCALABLE_BASELINE;
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|
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iNotCodedMask = (1 << (kuiLogFactorInOutRate + kuiLogFactorMaxInRate)) - 1;
|
|
for (uint32_t uiFrameIdx = 0; uiFrameIdx <= uiGopSize; ++ uiFrameIdx) {
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|
if (0 == (uiFrameIdx & iNotCodedMask)) {
|
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const int8_t kiTemporalId = pTemporalIdList[uiFrameIdx];
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|
pDlp->uiCodingIdx2TemporalId[uiFrameIdx] = kiTemporalId;
|
|
if (kiTemporalId > iMaxTemporalId) {
|
|
iMaxTemporalId = kiTemporalId;
|
|
}
|
|
}
|
|
}
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|
|
|
pDlp->iHighestTemporalId = iMaxTemporalId;
|
|
pDlp->iTemporalResolution = kuiLogFactorMaxInRate + kuiLogFactorInOutRate;
|
|
pDlp->iDecompositionStages = iDecStages - kuiLogFactorMaxInRate - kuiLogFactorInOutRate;
|
|
|
|
uiProfileIdc = PRO_SCALABLE_BASELINE;
|
|
++ pDlp;
|
|
++ i;
|
|
}
|
|
iDecompStages = (int8_t)iDecStages;
|
|
}
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|
|
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} SWelsSvcCodingParam;
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|
|
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static inline int32_t FreeCodingParam (SWelsSvcCodingParam** pParam, CMemoryAlign* pMa) {
|
|
if (pParam == NULL || *pParam == NULL || pMa == NULL)
|
|
return 1;
|
|
pMa->WelsFree (*pParam, "SWelsSvcCodingParam");
|
|
*pParam = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static inline int32_t AllocCodingParam (SWelsSvcCodingParam** pParam, CMemoryAlign* pMa,
|
|
const int32_t kiRequestNumSpatial) {
|
|
if (pParam == NULL || pMa == NULL || kiRequestNumSpatial < 1 || kiRequestNumSpatial > MAX_SPATIAL_LAYER_NUM)
|
|
return 1;
|
|
if (*pParam != NULL) {
|
|
FreeCodingParam (pParam, pMa);
|
|
}
|
|
SWelsSvcCodingParam* pCodingParam = (SWelsSvcCodingParam*)pMa->WelsMalloc (sizeof (SWelsSvcCodingParam),
|
|
"SWelsSvcCodingParam");
|
|
if (NULL == pCodingParam)
|
|
return 1;
|
|
*pParam = pCodingParam;
|
|
return 0;
|
|
}
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|
|
|
}//end of namespace WelsSVCEnc
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#endif//WELS_ENCODER_PARAMETER_SVC_H__
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