ref: cd0ffbd45b2c4b1a38aab8d4ab1dde27e01d4d1f
dir: /codec/encoder/core/inc/param_svc.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 param_svc.h
*
* \brief Configurable parameters in H.264/SVC Encoder
*
* \date 4/20/2009 Created
*
*************************************************************************************
*/
#if !defined(WELS_ENCODER_PARAMETER_SVC_H__)
#define WELS_ENCODER_PARAMETER_SVC_H__
#include <string.h>
#include <math.h>
#include "typedefs.h"
#include "codec_def.h"
#include "macros.h"
#include "wels_const.h"
#include "rc.h"
#include "svc_enc_slice_segment.h"
#include "as264_common.h"
namespace WelsEnc {
#define INVALID_TEMPORAL_ID ((uint8_t)0xff)
extern const uint8_t g_kuiTemporalIdListTable[MAX_TEMPORAL_LEVEL][MAX_GOP_SIZE + 1];
/*!
* \brief get Logarithms base 2 of (upper/base)
* \param base based scaler
* \param upper input upper value
* \return 2 based scaling factor
*/
static inline uint32_t GetLogFactor (float base, float upper) {
const double dLog2factor = log10 (1.0 * upper / base) / log10 (2.0);
const double dEpsilon = 0.0001;
const double dRound = floor (dLog2factor + 0.5);
if (dLog2factor < dRound + dEpsilon && dRound < dLog2factor + dEpsilon) {
return (uint32_t) (dRound);
}
return UINT_MAX;
}
/*
* Dependency Layer Parameter
*/
typedef struct TagDLayerParam {
int32_t iActualWidth; // input source picture actual width
int32_t iActualHeight; // input source picture actual height
int32_t iTemporalResolution;
int32_t iDecompositionStages;
uint8_t uiCodingIdx2TemporalId[ (1 << MAX_TEMPORAL_LEVEL) + 1];
int8_t iHighestTemporalId;
float fInputFrameRate; // input frame rate
float fOutputFrameRate; // output frame rate
uint16_t uiIdrPicId; // IDR picture id: [0, 65535], this one is used for LTR
int32_t iCodingIndex;
int32_t iFrameIndex; // count how many frames elapsed during coding context currently
bool bEncCurFrmAsIdrFlag;
int32_t iFrameNum; // current frame number coding
int32_t iPOC; // frame iPOC
#ifdef ENABLE_FRAME_DUMP
char sRecFileName[MAX_FNAME_LEN]; // file to be constructed
#endif//ENABLE_FRAME_DUMP
} SSpatialLayerInternal;
/*
* Cisco OpenH264 Encoder Parameter Configuration
*/
typedef struct TagWelsSvcCodingParam: SEncParamExt {
SSpatialLayerInternal sDependencyLayers[MAX_DEPENDENCY_LAYER];
/* General */
uint32_t uiGopSize; // GOP size (at maximal frame rate: 16)
struct {
int32_t iLeft;
int32_t iTop;
int32_t iWidth;
int32_t iHeight;
} SUsedPicRect; // the rect in input picture that encoder actually used
char* pCurPath; // record current lib path such as:/pData/pData/com.wels.enc/lib/
bool bDeblockingParallelFlag; // deblocking filter parallelization control flag
int32_t iBitsVaryPercentage;
int8_t iDecompStages; // GOP size dependency
int32_t iMaxNumRefFrame;
public:
TagWelsSvcCodingParam() {
FillDefault();
}
~TagWelsSvcCodingParam() {}
static void FillDefault (SEncParamExt& param) {
memset (¶m, 0, sizeof (param));
param.uiIntraPeriod = 0; // intra period (multiple of GOP size as desired)
param.iNumRefFrame = AUTO_REF_PIC_COUNT;// number of reference frame used
param.iPicWidth = 0; // actual input picture width
param.iPicHeight = 0; // actual input picture height
param.fMaxFrameRate = MAX_FRAME_RATE; // maximal frame rate [Hz / fps]
param.iComplexityMode = LOW_COMPLEXITY;
param.iTargetBitrate = UNSPECIFIED_BIT_RATE; // overall target bitrate introduced in RC module
param.iMaxBitrate = UNSPECIFIED_BIT_RATE;
param.iMultipleThreadIdc = 1;
param.bUseLoadBalancing = true;
param.iLTRRefNum = 0;
param.iLtrMarkPeriod = 30; //the min distance of two int32_t references
param.bEnableSSEI = false;
param.bSimulcastAVC = false;
param.bEnableFrameCroppingFlag = true; // enable frame cropping flag: true alwayse in application
// false: Streaming Video Sharing; true: Video Conferencing Meeting;
/* Deblocking loop filter */
param.iLoopFilterDisableIdc = 0; // 0: on, 1: off, 2: on except for slice boundaries
param.iLoopFilterAlphaC0Offset = 0; // AlphaOffset: valid range [-6, 6], default 0
param.iLoopFilterBetaOffset = 0; // BetaOffset: valid range [-6, 6], default 0
/* Rate Control */
param.iRCMode = RC_QUALITY_MODE;
param.iPaddingFlag = 0;
param.iEntropyCodingModeFlag = 0;
param.bEnableDenoise = false; // denoise control
param.bEnableSceneChangeDetect = true; // scene change detection control
param.bEnableBackgroundDetection = true; // background detection control
param.bEnableAdaptiveQuant = true; // adaptive quantization control
param.bEnableFrameSkip = true; // frame skipping
param.bEnableLongTermReference = false; // long term reference control
param.eSpsPpsIdStrategy = INCREASING_ID;// pSps pPps id addition control
param.bPrefixNalAddingCtrl = false; // prefix NAL adding control
param.iSpatialLayerNum = 1; // number of dependency(Spatial/CGS) layers used to be encoded
param.iTemporalLayerNum = 1; // number of temporal layer specified
param.iMaxQp = 51;
param.iMinQp = 0;
param.iUsageType = CAMERA_VIDEO_REAL_TIME;
param.uiMaxNalSize = 0;
param.bIsLosslessLink = false;
for (int32_t iLayer = 0; iLayer < MAX_SPATIAL_LAYER_NUM; iLayer++) {
param.sSpatialLayers[iLayer].uiProfileIdc = PRO_BASELINE;
param.sSpatialLayers[iLayer].uiLevelIdc = LEVEL_UNKNOWN;
param.sSpatialLayers[iLayer].iDLayerQp = SVC_QUALITY_BASE_QP;
param.sSpatialLayers[iLayer].fFrameRate = param.fMaxFrameRate;
param.sSpatialLayers[iLayer].iMaxSpatialBitrate = UNSPECIFIED_BIT_RATE;
param.sSpatialLayers[iLayer].sSliceArgument.uiSliceMode = SM_SINGLE_SLICE;
param.sSpatialLayers[iLayer].sSliceArgument.uiSliceNum = 0; //AUTO, using number of CPU cores
param.sSpatialLayers[iLayer].sSliceArgument.uiSliceSizeConstraint = 1500;
param.sSpatialLayers[iLayer].bAspectRatioPresent = false; // do not write any of the following information to the header
param.sSpatialLayers[iLayer].eAspectRatio = ASP_UNSPECIFIED;
param.sSpatialLayers[iLayer].sAspectRatioExtWidth = 0;
param.sSpatialLayers[iLayer].sAspectRatioExtHeight = 0;
const int32_t kiLesserSliceNum = ((MAX_SLICES_NUM < MAX_SLICES_NUM_TMP) ? MAX_SLICES_NUM : MAX_SLICES_NUM_TMP);
for (int32_t idx = 0; idx < kiLesserSliceNum; idx++)
param.sSpatialLayers[iLayer].sSliceArgument.uiSliceMbNum[idx] = 0; //default, using one row a slice if uiSliceMode is SM_RASTER_MODE
// See codec_app_def.h for more info about members bVideoSignalTypePresent through uiColorMatrix. The default values
// used below preserve the previous behavior; i.e., no additional information will be written to the output file.
param.sSpatialLayers[iLayer].bVideoSignalTypePresent = false; // do not write any of the following information to the header
param.sSpatialLayers[iLayer].uiVideoFormat = VF_UNDEF; // undefined
param.sSpatialLayers[iLayer].bFullRange = false; // analog video data range [16, 235]
param.sSpatialLayers[iLayer].bColorDescriptionPresent = false; // do not write any of the following three items to the header
param.sSpatialLayers[iLayer].uiColorPrimaries = CP_UNDEF; // undefined
param.sSpatialLayers[iLayer].uiTransferCharacteristics = TRC_UNDEF; // undefined
param.sSpatialLayers[iLayer].uiColorMatrix = CM_UNDEF; // undefined
}
}
void FillDefault() {
FillDefault (*this);
uiGopSize = 1; // GOP size (at maximal frame rate: 16)
iMaxNumRefFrame = AUTO_REF_PIC_COUNT;
SUsedPicRect.iLeft =
SUsedPicRect.iTop =
SUsedPicRect.iWidth =
SUsedPicRect.iHeight = 0; // the rect in input picture that encoder actually used
pCurPath = NULL; // record current lib path such as:/pData/pData/com.wels.enc/lib/
bDeblockingParallelFlag = false;// deblocking filter parallelization control flag
iDecompStages = 0; // GOP size dependency, unknown here and be revised later
iBitsVaryPercentage = 10;
}
int32_t ParamBaseTranscode (const SEncParamBase& pCodingParam) {
fMaxFrameRate = WELS_CLIP3 (pCodingParam.fMaxFrameRate, MIN_FRAME_RATE, MAX_FRAME_RATE);
iTargetBitrate = pCodingParam.iTargetBitrate;
iUsageType = pCodingParam.iUsageType;
iPicWidth = pCodingParam.iPicWidth;
iPicHeight = pCodingParam.iPicHeight;
SUsedPicRect.iLeft = 0;
SUsedPicRect.iTop = 0;
SUsedPicRect.iWidth = ((iPicWidth >> 1) * (1 << 1));
SUsedPicRect.iHeight = ((iPicHeight >> 1) * (1 << 1));
iRCMode = pCodingParam.iRCMode; // rc mode
int8_t iIdxSpatial = 0;
EProfileIdc uiProfileIdc = PRO_BASELINE;
if (iEntropyCodingModeFlag)
uiProfileIdc = PRO_MAIN;
SSpatialLayerInternal* pDlp = &sDependencyLayers[0];
while (iIdxSpatial < iSpatialLayerNum) {
sSpatialLayers->uiProfileIdc = uiProfileIdc;
sSpatialLayers->uiLevelIdc = LEVEL_UNKNOWN;
sSpatialLayers[iIdxSpatial].fFrameRate = WELS_CLIP3 (pCodingParam.fMaxFrameRate,
MIN_FRAME_RATE, MAX_FRAME_RATE);
pDlp->fInputFrameRate =
pDlp->fOutputFrameRate = WELS_CLIP3 (sSpatialLayers[iIdxSpatial].fFrameRate, MIN_FRAME_RATE,
MAX_FRAME_RATE);
#ifdef ENABLE_FRAME_DUMP
pDlp->sRecFileName[0] = '\0'; // file to be constructed
#endif//ENABLE_FRAME_DUMP
pDlp->iActualWidth = sSpatialLayers[iIdxSpatial].iVideoWidth = iPicWidth;
pDlp->iActualHeight = sSpatialLayers[iIdxSpatial].iVideoHeight = iPicHeight;
sSpatialLayers->iSpatialBitrate =
sSpatialLayers[iIdxSpatial].iSpatialBitrate = pCodingParam.iTargetBitrate; // target bitrate for current spatial layer
sSpatialLayers->iMaxSpatialBitrate = UNSPECIFIED_BIT_RATE;
sSpatialLayers->iDLayerQp = SVC_QUALITY_BASE_QP;
uiProfileIdc = (!bSimulcastAVC) ? PRO_SCALABLE_BASELINE : PRO_BASELINE;
++ pDlp;
++ iIdxSpatial;
}
SetActualPicResolution();
return 0;
}
void GetBaseParams (SEncParamBase* pCodingParam) {
pCodingParam->iUsageType = iUsageType;
pCodingParam->iPicWidth = iPicWidth;
pCodingParam->iPicHeight = iPicHeight;
pCodingParam->iTargetBitrate = iTargetBitrate;
pCodingParam->iRCMode = iRCMode;
pCodingParam->fMaxFrameRate = fMaxFrameRate;
}
int32_t ParamTranscode (const SEncParamExt& pCodingParam) {
float fParamMaxFrameRate = WELS_CLIP3 (pCodingParam.fMaxFrameRate, MIN_FRAME_RATE, MAX_FRAME_RATE);
iUsageType = pCodingParam.iUsageType;
iPicWidth = pCodingParam.iPicWidth;
iPicHeight = pCodingParam.iPicHeight;
fMaxFrameRate = fParamMaxFrameRate;
iComplexityMode = pCodingParam.iComplexityMode;
SUsedPicRect.iLeft = 0;
SUsedPicRect.iTop = 0;
SUsedPicRect.iWidth = ((iPicWidth >> 1) << 1);
SUsedPicRect.iHeight = ((iPicHeight >> 1) << 1);
iMultipleThreadIdc = pCodingParam.iMultipleThreadIdc;
bUseLoadBalancing = pCodingParam.bUseLoadBalancing;
/* Deblocking loop filter */
iLoopFilterDisableIdc = pCodingParam.iLoopFilterDisableIdc; // 0: on, 1: off, 2: on except for slice boundaries,
iLoopFilterAlphaC0Offset = pCodingParam.iLoopFilterAlphaC0Offset; // AlphaOffset: valid range [-6, 6], default 0
iLoopFilterBetaOffset = pCodingParam.iLoopFilterBetaOffset; // BetaOffset: valid range [-6, 6], default 0
iEntropyCodingModeFlag = pCodingParam.iEntropyCodingModeFlag;
bEnableFrameCroppingFlag = pCodingParam.bEnableFrameCroppingFlag;
/* Rate Control */
iRCMode = pCodingParam.iRCMode; // rc mode
bSimulcastAVC = pCodingParam.bSimulcastAVC;
iPaddingFlag = pCodingParam.iPaddingFlag;
iTargetBitrate = pCodingParam.iTargetBitrate; // target bitrate
iMaxBitrate = pCodingParam.iMaxBitrate;
if (iMaxBitrate < iTargetBitrate) {
iMaxBitrate = iTargetBitrate;
}
iMaxQp = pCodingParam.iMaxQp;
iMinQp = pCodingParam.iMinQp;
uiMaxNalSize = pCodingParam.uiMaxNalSize;
/* Denoise Control */
bEnableDenoise = pCodingParam.bEnableDenoise ? true : false; // Denoise Control // only support 0 or 1 now
/* Scene change detection control */
bEnableSceneChangeDetect = pCodingParam.bEnableSceneChangeDetect;
/* Background detection Control */
bEnableBackgroundDetection = pCodingParam.bEnableBackgroundDetection ? true : false;
/* Adaptive quantization control */
bEnableAdaptiveQuant = pCodingParam.bEnableAdaptiveQuant ? true : false;
/* Frame skipping */
bEnableFrameSkip = pCodingParam.bEnableFrameSkip ? true : false;
/* Enable int32_t term reference */
bEnableLongTermReference = pCodingParam.bEnableLongTermReference ? true : false;
iLtrMarkPeriod = pCodingParam.iLtrMarkPeriod;
bIsLosslessLink = pCodingParam.bIsLosslessLink;
if (iUsageType == SCREEN_CONTENT_REAL_TIME && !bIsLosslessLink && bEnableLongTermReference) {
bEnableLongTermReference = false;
}
/* For ssei information */
bEnableSSEI = pCodingParam.bEnableSSEI;
bSimulcastAVC = pCodingParam.bSimulcastAVC;
/* Layer definition */
iSpatialLayerNum = (int8_t)WELS_CLIP3 (pCodingParam.iSpatialLayerNum, 1,
MAX_DEPENDENCY_LAYER); // number of dependency(Spatial/CGS) layers used to be encoded
iTemporalLayerNum = (int8_t)WELS_CLIP3 (pCodingParam.iTemporalLayerNum, 1,
MAX_TEMPORAL_LEVEL); // number of temporal layer specified
uiGopSize = 1 << (iTemporalLayerNum - 1); // Override GOP size based temporal layer
iDecompStages = iTemporalLayerNum - 1; // WELS_LOG2( uiGopSize );// GOP size dependency
uiIntraPeriod = pCodingParam.uiIntraPeriod;// intra period (multiple of GOP size as desired)
if (uiIntraPeriod == (uint32_t) (-1))
uiIntraPeriod = 0;
else if (uiIntraPeriod & (uiGopSize - 1)) // none multiple of GOP size
uiIntraPeriod = ((uiIntraPeriod + uiGopSize - 1) / uiGopSize) * uiGopSize;
if (((pCodingParam.iNumRefFrame != AUTO_REF_PIC_COUNT)
&& ((pCodingParam.iNumRefFrame > MAX_REF_PIC_COUNT) || (pCodingParam.iNumRefFrame < MIN_REF_PIC_COUNT)))
|| ((iNumRefFrame != AUTO_REF_PIC_COUNT) && (pCodingParam.iNumRefFrame == AUTO_REF_PIC_COUNT))) {
iNumRefFrame = pCodingParam.iNumRefFrame;
}
if ((iNumRefFrame != AUTO_REF_PIC_COUNT) && (iNumRefFrame > iMaxNumRefFrame)) {
iMaxNumRefFrame = iNumRefFrame;
}
iLTRRefNum = (pCodingParam.bEnableLongTermReference ? pCodingParam.iLTRRefNum : 0);
iLtrMarkPeriod = pCodingParam.iLtrMarkPeriod;
bPrefixNalAddingCtrl = pCodingParam.bPrefixNalAddingCtrl;
if ( (CONSTANT_ID == pCodingParam.eSpsPpsIdStrategy)
|| (INCREASING_ID == pCodingParam.eSpsPpsIdStrategy)
|| (SPS_LISTING == pCodingParam.eSpsPpsIdStrategy)
|| (SPS_LISTING_AND_PPS_INCREASING == pCodingParam.eSpsPpsIdStrategy)
|| (SPS_PPS_LISTING == pCodingParam.eSpsPpsIdStrategy)) {
eSpsPpsIdStrategy =
pCodingParam.eSpsPpsIdStrategy;//For SVC meeting application, to avoid mosaic issue caused by cross-IDR reference.
//SHOULD enable this feature.
} else {
// keep the default value
}
SSpatialLayerInternal* pDlp = &sDependencyLayers[0];
SSpatialLayerConfig* pSpatialLayer = &sSpatialLayers[0];
EProfileIdc uiProfileIdc = PRO_BASELINE;
int8_t iIdxSpatial = 0;
while (iIdxSpatial < iSpatialLayerNum) {
pSpatialLayer->uiProfileIdc = (pCodingParam.sSpatialLayers[iIdxSpatial].uiProfileIdc == PRO_UNKNOWN) ? uiProfileIdc :
pCodingParam.sSpatialLayers[iIdxSpatial].uiProfileIdc;
pSpatialLayer->uiLevelIdc = pCodingParam.sSpatialLayers[iIdxSpatial].uiLevelIdc;
float fLayerFrameRate = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].fFrameRate,
MIN_FRAME_RATE, fParamMaxFrameRate);
pDlp->fInputFrameRate = fParamMaxFrameRate;
pSpatialLayer->fFrameRate =
pDlp->fOutputFrameRate = WELS_CLIP3 (fLayerFrameRate, MIN_FRAME_RATE, fParamMaxFrameRate);
#ifdef ENABLE_FRAME_DUMP
pDlp->sRecFileName[0] = '\0'; // file to be constructed
#endif//ENABLE_FRAME_DUMP
pSpatialLayer->iVideoWidth = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].iVideoWidth, 0,
iPicWidth); // frame width
pSpatialLayer->iVideoHeight = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].iVideoHeight, 0,
iPicHeight);// frame height
pSpatialLayer->iSpatialBitrate =
pCodingParam.sSpatialLayers[iIdxSpatial].iSpatialBitrate; // target bitrate for current spatial layer
pSpatialLayer->iMaxSpatialBitrate =
pCodingParam.sSpatialLayers[iIdxSpatial].iMaxSpatialBitrate;
//multi slice
pSpatialLayer->sSliceArgument = pCodingParam.sSpatialLayers[iIdxSpatial].sSliceArgument;
memcpy (&(pSpatialLayer->sSliceArgument),
&(pCodingParam.sSpatialLayers[iIdxSpatial].sSliceArgument), // confirmed_safe_unsafe_usage
sizeof (SSliceArgument)) ;
pSpatialLayer->iDLayerQp = pCodingParam.sSpatialLayers[iIdxSpatial].iDLayerQp;
// See codec_app_def.h and parameter_sets.h for more info about members bVideoSignalTypePresent through uiColorMatrix.
pSpatialLayer->bVideoSignalTypePresent = pCodingParam.sSpatialLayers[iIdxSpatial].bVideoSignalTypePresent;
pSpatialLayer->uiVideoFormat = pCodingParam.sSpatialLayers[iIdxSpatial].uiVideoFormat;
pSpatialLayer->bFullRange = pCodingParam.sSpatialLayers[iIdxSpatial].bFullRange;
pSpatialLayer->bColorDescriptionPresent = pCodingParam.sSpatialLayers[iIdxSpatial].bColorDescriptionPresent;
pSpatialLayer->uiColorPrimaries = pCodingParam.sSpatialLayers[iIdxSpatial].uiColorPrimaries;
pSpatialLayer->uiTransferCharacteristics = pCodingParam.sSpatialLayers[iIdxSpatial].uiTransferCharacteristics;
pSpatialLayer->uiColorMatrix = pCodingParam.sSpatialLayers[iIdxSpatial].uiColorMatrix;
pSpatialLayer->bAspectRatioPresent = pCodingParam.sSpatialLayers[iIdxSpatial].bAspectRatioPresent;
pSpatialLayer->eAspectRatio = pCodingParam.sSpatialLayers[iIdxSpatial].eAspectRatio;
pSpatialLayer->sAspectRatioExtWidth = pCodingParam.sSpatialLayers[iIdxSpatial].sAspectRatioExtWidth;
pSpatialLayer->sAspectRatioExtHeight = pCodingParam.sSpatialLayers[iIdxSpatial].sAspectRatioExtHeight;
uiProfileIdc = (!bSimulcastAVC) ? PRO_SCALABLE_BASELINE : PRO_BASELINE;
++ pDlp;
++ pSpatialLayer;
++ iIdxSpatial;
}
SetActualPicResolution();
return 0;
}
// assuming that the width/height ratio of all spatial layers are the same
void SetActualPicResolution() {
int32_t iSpatialIdx = iSpatialLayerNum - 1;
for (; iSpatialIdx >= 0; iSpatialIdx --) {
SSpatialLayerInternal* pDlayerInternal = &sDependencyLayers[iSpatialIdx];
SSpatialLayerConfig* pDlayer = &sSpatialLayers[iSpatialIdx];
pDlayerInternal->iActualWidth = pDlayer->iVideoWidth;
pDlayerInternal->iActualHeight = pDlayer->iVideoHeight;
pDlayer->iVideoWidth = WELS_ALIGN (pDlayerInternal->iActualWidth, MB_WIDTH_LUMA);
pDlayer->iVideoHeight = WELS_ALIGN (pDlayerInternal->iActualHeight, MB_HEIGHT_LUMA);
}
}
/*!
* \brief determined key coding tables for temporal scalability, uiProfileIdc etc for each spatial layer settings
* \param SWelsSvcCodingParam, and carried with known GOP size, max, input and output frame rate of each spatial
* \return NONE (should ensure valid parameter before this procedure)
*/
int32_t DetermineTemporalSettings() {
const int32_t iDecStages = WELS_LOG2 (uiGopSize); // (int8_t)GetLogFactor(1.0f, 1.0f * pcfg->uiGopSize); //log2(uiGopSize)
const uint8_t* pTemporalIdList = &g_kuiTemporalIdListTable[iDecStages][0];
SSpatialLayerInternal* pDlp = &sDependencyLayers[0];
SSpatialLayerConfig* pSpatialLayer = &sSpatialLayers[0];
int8_t i = 0;
while (i < iSpatialLayerNum) {
const uint32_t kuiLogFactorInOutRate = GetLogFactor (pDlp->fOutputFrameRate, pDlp->fInputFrameRate);
const uint32_t kuiLogFactorMaxInRate = GetLogFactor (pDlp->fInputFrameRate, fMaxFrameRate);
if (UINT_MAX == kuiLogFactorInOutRate || UINT_MAX == kuiLogFactorMaxInRate) {
return ENC_RETURN_INVALIDINPUT;
}
int32_t iNotCodedMask = 0;
int8_t iMaxTemporalId = 0;
memset (pDlp->uiCodingIdx2TemporalId, INVALID_TEMPORAL_ID, sizeof (pDlp->uiCodingIdx2TemporalId));
iNotCodedMask = (1 << (kuiLogFactorInOutRate + kuiLogFactorMaxInRate)) - 1;
for (uint32_t uiFrameIdx = 0; uiFrameIdx <= uiGopSize; ++ uiFrameIdx) {
if (0 == (uiFrameIdx & iNotCodedMask)) {
const int8_t kiTemporalId = pTemporalIdList[uiFrameIdx];
pDlp->uiCodingIdx2TemporalId[uiFrameIdx] = kiTemporalId;
if (kiTemporalId > iMaxTemporalId) {
iMaxTemporalId = kiTemporalId;
}
}
}
pDlp->iHighestTemporalId = iMaxTemporalId;
pDlp->iTemporalResolution = kuiLogFactorMaxInRate + kuiLogFactorInOutRate;
pDlp->iDecompositionStages = iDecStages - kuiLogFactorMaxInRate - kuiLogFactorInOutRate;
if (pDlp->iDecompositionStages < 0) {
return ENC_RETURN_INVALIDINPUT;
}
++ pDlp;
++ pSpatialLayer;
++ i;
}
iDecompStages = (int8_t)iDecStages;
return ENC_RETURN_SUCCESS;
}
} SWelsSvcCodingParam;
typedef struct TagExistingParasetList {
SWelsSPS sSps[MAX_SPS_COUNT];
SSubsetSps sSubsetSps[MAX_SPS_COUNT];
SWelsPPS sPps[MAX_PPS_COUNT];
uint32_t uiInUseSpsNum;
uint32_t uiInUseSubsetSpsNum;
uint32_t uiInUsePpsNum;
} SExistingParasetList;
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) {
if (pParam == NULL || pMa == NULL)
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;
}
}//end of namespace WelsEnc
#endif//WELS_ENCODER_PARAMETER_SVC_H__