ref: 7e4a89c1127e67ce0e8a2e2b41861d26d6fce4fe
dir: /codec/encoder/core/src/slice_multi_threading.cpp/
/*!
* \copy
* Copyright (c) 2010-2013, 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 slice_multi_threading.h
*
* \brief pSlice based multiple threading
*
* \date 04/16/2010 Created
*
*************************************************************************************
*/
#include <assert.h>
#if !defined(_WIN32)
#include <semaphore.h>
#include <unistd.h>
#endif//!_WIN32
#ifndef SEM_NAME_MAX
// length of semaphore name should be system constrained at least on mac 10.7
#define SEM_NAME_MAX 32
#endif//SEM_NAME_MAX
#include "slice_multi_threading.h"
#include "mt_defs.h"
#include "nal_encap.h"
#include "utils.h"
#include "encoder.h"
#include "svc_encode_slice.h"
#include "deblocking.h"
#include "svc_enc_golomb.h"
#include "crt_util_safe_x.h" // for safe crt like calls
#include "rc.h"
#include "cpu.h"
#include "measure_time.h"
#include "wels_task_management.h"
#if defined(ENABLE_TRACE_MT)
#define MT_TRACE_LOG(pLog, x, ...) WelsLog(pLog, x, __VA_ARGS__)
#else
#define MT_TRACE_LOG(x, ...)
#endif
namespace WelsEnc {
void UpdateMbListNeighborParallel (SDqLayer* pCurDq,
SMB* pMbList,
const int32_t uiSliceIdc) {
SSliceCtx* pSliceCtx = &pCurDq->sSliceEncCtx;
const int32_t kiMbWidth = pSliceCtx->iMbWidth;
int32_t iIdx = pCurDq->pFirstMbIdxOfSlice[uiSliceIdc];
const int32_t kiEndMbInSlice = iIdx + pCurDq->pCountMbNumInSlice[uiSliceIdc] - 1;
do {
UpdateMbNeighbor (pCurDq, &pMbList[iIdx], kiMbWidth, uiSliceIdc);
++ iIdx;
} while (iIdx <= kiEndMbInSlice);
}
void CalcSliceComplexRatio (SDqLayer* pCurDq) {
SSliceCtx* pSliceCtx = &pCurDq->sSliceEncCtx;
SSlice** ppSliceInLayer = pCurDq->ppSliceInLayer;
int32_t iSumAv = 0;
const int32_t kiSliceCount = pSliceCtx->iSliceNumInFrame;
int32_t iSliceIdx = 0;
int32_t iAvI[MAX_SLICES_NUM];
assert (kiSliceCount <= MAX_SLICES_NUM);
WelsEmms();
while (iSliceIdx < kiSliceCount) {
iAvI[iSliceIdx] = WELS_DIV_ROUND (INT_MULTIPLY * ppSliceInLayer[iSliceIdx]->iCountMbNumInSlice,
ppSliceInLayer[iSliceIdx]->uiSliceConsumeTime);
MT_TRACE_LOG (NULL, WELS_LOG_DEBUG, "[MT] CalcSliceComplexRatio(), uiSliceConsumeTime[%d]= %d us, slice_run= %d",
iSliceIdx,
ppSliceInLayer[iSliceIdx]->uiSliceConsumeTime, ppSliceInLayer[iSliceIdx]->iCountMbNumInSlice);
iSumAv += iAvI[iSliceIdx];
++ iSliceIdx;
}
while (-- iSliceIdx >= 0) {
ppSliceInLayer[iSliceIdx]->iSliceComplexRatio = WELS_DIV_ROUND (INT_MULTIPLY * iAvI[iSliceIdx], iSumAv);
}
}
int32_t NeedDynamicAdjust (SSlice** ppSliceInLayer, const int32_t iSliceNum) {
if (NULL == ppSliceInLayer) {
return false;
}
uint32_t uiTotalConsume = 0;
int32_t iSliceIdx = 0;
int32_t iNeedAdj = false;
WelsEmms();
while (iSliceIdx < iSliceNum) {
if (NULL == ppSliceInLayer[iSliceIdx]) {
return false;
}
uiTotalConsume += ppSliceInLayer[iSliceIdx]->uiSliceConsumeTime;
iSliceIdx ++;
}
if (uiTotalConsume == 0) {
MT_TRACE_LOG (NULL, WELS_LOG_DEBUG,
"[MT] NeedDynamicAdjust(), herein do no adjust due first picture, iCountSliceNum= %d",
iSliceNum);
return false;
}
iSliceIdx = 0;
float fThr = EPSN; // threshold for various cores cases
float fRmse = .0f; // root mean square error of pSlice consume ratios
const float kfMeanRatio = 1.0f / iSliceNum;
do {
const float fRatio = 1.0f * ppSliceInLayer[iSliceIdx]->uiSliceConsumeTime / uiTotalConsume;
const float fDiffRatio = fRatio - kfMeanRatio;
fRmse += (fDiffRatio * fDiffRatio);
++ iSliceIdx;
} while (iSliceIdx + 1 < iSliceNum);
fRmse = sqrtf (fRmse / iSliceNum);
if (iSliceNum >= 8) {
fThr += THRESHOLD_RMSE_CORE8;
} else if (iSliceNum >= 4) {
fThr += THRESHOLD_RMSE_CORE4;
} else if (iSliceNum >= 2) {
fThr += THRESHOLD_RMSE_CORE2;
} else
fThr = 1.0f;
if (fRmse > fThr)
iNeedAdj = true;
MT_TRACE_LOG (NULL, WELS_LOG_DEBUG,
"[MT] NeedDynamicAdjust(), herein adjustment decision is made (iNeedAdj= %d) by: fRmse of pSlice complexity ratios %.6f, the corresponding threshold %.6f, iCountSliceNum %d",
iNeedAdj, fRmse, fThr, iSliceNum);
return iNeedAdj;
}
void DynamicAdjustSlicing (sWelsEncCtx* pCtx,
SDqLayer* pCurDqLayer,
int32_t iCurDid) {
SSliceCtx* pSliceCtx = &pCurDqLayer->sSliceEncCtx;
SSlice** ppSliceInLayer = pCurDqLayer->ppSliceInLayer;
const int32_t kiCountSliceNum = pSliceCtx->iSliceNumInFrame;
const int32_t kiCountNumMb = pSliceCtx->iMbNumInFrame;
int32_t iMinimalMbNum =
pSliceCtx->iMbWidth; // in theory we need only 1 SMB, here let it as one SMB row required
int32_t iMaximalMbNum = 0; // dynamically assign later
int32_t iMbNumLeft = kiCountNumMb;
int32_t iRunLen[MAX_THREADS_NUM] = {0};
int32_t iSliceIdx = 0;
int32_t iNumMbInEachGom = 0;
SWelsSvcRc* pWelsSvcRc = &pCtx->pWelsSvcRc[iCurDid];
if (pCtx->pSvcParam->iRCMode != RC_OFF_MODE) {
iNumMbInEachGom = pWelsSvcRc->iNumberMbGom;
if (iNumMbInEachGom <= 0) {
WelsLog (& (pCtx->sLogCtx), WELS_LOG_ERROR,
"[MT] DynamicAdjustSlicing(), invalid iNumMbInEachGom= %d from RC, iDid= %d, iCountNumMb= %d", iNumMbInEachGom,
iCurDid, kiCountNumMb);
return;
}
// do not adjust in case no extra iNumMbInEachGom based left for slicing adjustment,
// extra MB of non integrated GOM assigned at the last pSlice in default, keep up on early initial result.
if (iNumMbInEachGom * kiCountSliceNum >= kiCountNumMb) {
return;
}
iMinimalMbNum = iNumMbInEachGom;
}
if (kiCountSliceNum < 2 || (kiCountSliceNum & 0x01)) // we need suppose uiSliceNum is even for multiple threading
return;
iMaximalMbNum = kiCountNumMb - (kiCountSliceNum - 1) * iMinimalMbNum;
WelsEmms();
MT_TRACE_LOG (& (pCtx->sLogCtx), WELS_LOG_DEBUG, "[MT] DynamicAdjustSlicing(), iDid= %d, iCountNumMb= %d", iCurDid,
kiCountNumMb);
iSliceIdx = 0;
while (iSliceIdx + 1 < kiCountSliceNum) {
int32_t iNumMbAssigning = WELS_DIV_ROUND (kiCountNumMb * ppSliceInLayer[iSliceIdx]->iSliceComplexRatio, INT_MULTIPLY);
// GOM boundary aligned
if (pCtx->pSvcParam->iRCMode != RC_OFF_MODE) {
iNumMbAssigning = iNumMbAssigning / iNumMbInEachGom * iNumMbInEachGom;
}
// make sure one GOM at least in each pSlice for safe
if (iNumMbAssigning < iMinimalMbNum)
iNumMbAssigning = iMinimalMbNum;
else if (iNumMbAssigning > iMaximalMbNum)
iNumMbAssigning = iMaximalMbNum;
assert (iNumMbAssigning > 0);
iMbNumLeft -= iNumMbAssigning;
if (iMbNumLeft <= 0) { // error due to we can not support slice_skip now yet, do not adjust this time
assert (0);
return;
}
iRunLen[iSliceIdx] = iNumMbAssigning;
MT_TRACE_LOG (& (pCtx->sLogCtx), WELS_LOG_DEBUG,
"[MT] DynamicAdjustSlicing(), iSliceIdx= %d, iSliceComplexRatio= %.2f, slice_run_org= %d, slice_run_adj= %d",
iSliceIdx, ppSliceInLayer[iSliceIdx]->iSliceComplexRatio * 1.0f / INT_MULTIPLY,
ppSliceInLayer[iSliceIdx]->iCountMbNumInSlice,
iNumMbAssigning);
++ iSliceIdx;
iMaximalMbNum = iMbNumLeft - (kiCountSliceNum - iSliceIdx - 1) * iMinimalMbNum; // get maximal num_mb in left parts
}
iRunLen[iSliceIdx] = iMbNumLeft;
MT_TRACE_LOG (& (pCtx->sLogCtx), WELS_LOG_DEBUG,
"[MT] DynamicAdjustSlicing(), iSliceIdx= %d, pSliceComplexRatio= %.2f, slice_run_org= %d, slice_run_adj= %d",
iSliceIdx, ppSliceInLayer[iSliceIdx]->iSliceComplexRatio * 1.0f / INT_MULTIPLY,
ppSliceInLayer[iSliceIdx]->iCountMbNumInSlice, iMbNumLeft);
pCurDqLayer->bNeedAdjustingSlicing = !DynamicAdjustSlicePEncCtxAll (pCurDqLayer, iRunLen);
}
int32_t RequestMtResource (sWelsEncCtx** ppCtx, SWelsSvcCodingParam* pCodingParam, const int32_t iCountBsLen,
const int32_t iMaxSliceBufferSize, bool bDynamicSlice) {
CMemoryAlign* pMa = NULL;
SWelsSvcCodingParam* pPara = NULL;
SSliceThreading* pSmt = NULL;
int32_t iNumSpatialLayers = 0;
int32_t iThreadNum = 0;
int32_t iIdx = 0;
int32_t iReturn = ENC_RETURN_SUCCESS;
if (NULL == ppCtx || NULL == pCodingParam || NULL == *ppCtx || iCountBsLen <= 0)
return 1;
#if defined(ENABLE_TRACE_MT)
SLogContext* pLogCtx = & ((*ppCtx)->sLogCtx);
#endif
pMa = (*ppCtx)->pMemAlign;
pPara = pCodingParam;
iNumSpatialLayers = pPara->iSpatialLayerNum;
iThreadNum = pPara->iMultipleThreadIdc;
assert (iThreadNum > 0);
pSmt = (SSliceThreading*)pMa->WelsMalloc (sizeof (SSliceThreading), "SSliceThreading");
WELS_VERIFY_RETURN_IF (1, (NULL == pSmt))
memset (pSmt, 0, sizeof (SSliceThreading));
(*ppCtx)->pSliceThreading = pSmt;
pSmt->pThreadPEncCtx = (SSliceThreadPrivateData*)pMa->WelsMalloc (sizeof (SSliceThreadPrivateData) * iThreadNum,
"pThreadPEncCtx");
WELS_VERIFY_RETURN_IF (1, (NULL == pSmt->pThreadPEncCtx))
#ifdef _WIN32
// Dummy event namespace, the windows events don't actually use this
WelsSnprintf (pSmt->eventNamespace, sizeof (pSmt->eventNamespace), "%p", (void*) *ppCtx);
#else
WelsSnprintf (pSmt->eventNamespace, sizeof (pSmt->eventNamespace), "%p%x", (void*) *ppCtx, getpid());
#endif//!_WIN32
#ifdef MT_DEBUG
// file handle for MT debug
pSmt->pFSliceDiff = NULL;
if (pSmt->pFSliceDiff) {
fclose (pSmt->pFSliceDiff);
pSmt->pFSliceDiff = NULL;
}
pSmt->pFSliceDiff = fopen ("slice_time.txt", "wt+");
#endif//MT_DEBUG
MT_TRACE_LOG (pLogCtx, WELS_LOG_INFO, "encpEncCtx= 0x%p", (void*) *ppCtx);
char name[SEM_NAME_MAX] = {0};
WELS_GCC_UNUSED WELS_THREAD_ERROR_CODE err = 0;
iIdx = 0;
while (iIdx < iThreadNum) {
pSmt->pThreadPEncCtx[iIdx].pWelsPEncCtx = (void*) *ppCtx;
pSmt->pThreadPEncCtx[iIdx].iSliceIndex = iIdx;
pSmt->pThreadPEncCtx[iIdx].iThreadIndex = iIdx;
pSmt->pThreadHandles[iIdx] = 0;
// length of semaphore name should be system constrained at least on mac 10.7
WelsSnprintf (name, SEM_NAME_MAX, "ud%d%s", iIdx, pSmt->eventNamespace);
err = WelsEventOpen (&pSmt->pUpdateMbListEvent[iIdx], name);
MT_TRACE_LOG (pLogCtx, WELS_LOG_INFO, "[MT] Open pUpdateMbListEvent%d named(%s) ret%d err%d", iIdx, name, err, errno);
WelsSnprintf (name, SEM_NAME_MAX, "fu%d%s", iIdx, pSmt->eventNamespace);
err = WelsEventOpen (&pSmt->pFinUpdateMbListEvent[iIdx], name);
MT_TRACE_LOG (pLogCtx, WELS_LOG_INFO, "[MT] Open pFinUpdateMbListEvent%d named(%s) ret%d err%d", iIdx, name, err,
errno);
WelsSnprintf (name, SEM_NAME_MAX, "sc%d%s", iIdx, pSmt->eventNamespace);
err = WelsEventOpen (&pSmt->pSliceCodedEvent[iIdx], name);
MT_TRACE_LOG (pLogCtx, WELS_LOG_INFO, "[MT] Open pSliceCodedEvent%d named(%s) ret%d err%d", iIdx, name, err, errno);
WelsSnprintf (name, SEM_NAME_MAX, "rc%d%s", iIdx, pSmt->eventNamespace);
err = WelsEventOpen (&pSmt->pReadySliceCodingEvent[iIdx], name);
MT_TRACE_LOG (pLogCtx, WELS_LOG_INFO, "[MT] Open pReadySliceCodingEvent%d = 0x%p named(%s) ret%d err%d", iIdx,
(void*)pSmt->pReadySliceCodingEvent[iIdx], name, err, errno);
++ iIdx;
}
WelsSnprintf (name, SEM_NAME_MAX, "scm%s", pSmt->eventNamespace);
err = WelsEventOpen (&pSmt->pSliceCodedMasterEvent, name);
MT_TRACE_LOG (pLogCtx, WELS_LOG_INFO, "[MT] Open pSliceCodedMasterEvent named(%s) ret%d err%d", name, err, errno);
iReturn = WelsMutexInit (&pSmt->mutexSliceNumUpdate);
WELS_VERIFY_RETURN_IF (1, (WELS_THREAD_ERROR_OK != iReturn))
(*ppCtx)->pTaskManage = IWelsTaskManage::CreateTaskManage (*ppCtx, iNumSpatialLayers, bDynamicSlice);
WELS_VERIFY_RETURN_IF (1, (NULL == (*ppCtx)->pTaskManage))
int32_t iThreadBufferNum = WELS_MIN ((*ppCtx)->pTaskManage->GetThreadPoolThreadNum(), MAX_THREADS_NUM);
for (iIdx = 0; iIdx < iThreadBufferNum; iIdx++) {
pSmt->pThreadBsBuffer[iIdx] = (uint8_t*)pMa->WelsMallocz (iCountBsLen, "pSmt->pThreadBsBuffer");
WELS_VERIFY_RETURN_IF (1, (NULL == pSmt->pThreadBsBuffer[iIdx]))
}
iReturn = WelsMutexInit (&pSmt->mutexThreadBsBufferUsage);
WELS_VERIFY_RETURN_PROC_IF (1, (WELS_THREAD_ERROR_OK != iReturn), FreeMemorySvc (ppCtx))
iReturn = WelsMutexInit (&pSmt->mutexEvent);
WELS_VERIFY_RETURN_PROC_IF (1, (WELS_THREAD_ERROR_OK != iReturn), FreeMemorySvc (ppCtx));
iReturn = WelsMutexInit (&pSmt->mutexThreadSlcBuffReallocate);
WELS_VERIFY_RETURN_PROC_IF (1, (WELS_THREAD_ERROR_OK != iReturn), FreeMemorySvc (ppCtx))
iReturn = WelsMutexInit (& (*ppCtx)->mutexEncoderError);
WELS_VERIFY_RETURN_IF (1, (WELS_THREAD_ERROR_OK != iReturn))
MT_TRACE_LOG (pLogCtx, WELS_LOG_INFO, "RequestMtResource(), iThreadNum=%d, iMultipleThreadIdc= %d",
pPara->iMultipleThreadIdc,
(*ppCtx)->iMaxSliceCount);
return 0;
}
void ReleaseMtResource (sWelsEncCtx** ppCtx) {
SSliceThreading* pSmt = NULL;
CMemoryAlign* pMa = NULL;
int32_t iIdx = 0;
int32_t iThreadNum = 0;
if (NULL == ppCtx || NULL == *ppCtx)
return;
pMa = (*ppCtx)->pMemAlign;
iThreadNum = (*ppCtx)->pSvcParam->iMultipleThreadIdc;
pSmt = (*ppCtx)->pSliceThreading;
if (NULL == pSmt)
return;
char ename[SEM_NAME_MAX] = {0};
while (iIdx < iThreadNum) {
// length of semaphore name should be system constrained at least on mac 10.7
WelsSnprintf (ename, SEM_NAME_MAX, "sc%d%s", iIdx, pSmt->eventNamespace);
WelsEventClose (&pSmt->pSliceCodedEvent[iIdx], ename);
WelsSnprintf (ename, SEM_NAME_MAX, "rc%d%s", iIdx, pSmt->eventNamespace);
WelsEventClose (&pSmt->pReadySliceCodingEvent[iIdx], ename);
WelsSnprintf (ename, SEM_NAME_MAX, "ud%d%s", iIdx, pSmt->eventNamespace);
WelsEventClose (&pSmt->pUpdateMbListEvent[iIdx], ename);
WelsSnprintf (ename, SEM_NAME_MAX, "fu%d%s", iIdx, pSmt->eventNamespace);
WelsEventClose (&pSmt->pFinUpdateMbListEvent[iIdx], ename);
++ iIdx;
}
WelsSnprintf (ename, SEM_NAME_MAX, "scm%s", pSmt->eventNamespace);
WelsEventClose (&pSmt->pSliceCodedMasterEvent, ename);
WelsMutexDestroy (&pSmt->mutexSliceNumUpdate);
WelsMutexDestroy (&pSmt->mutexThreadBsBufferUsage);
WelsMutexDestroy (&pSmt->mutexThreadSlcBuffReallocate);
WelsMutexDestroy (& ((*ppCtx)->mutexEncoderError));
WelsMutexDestroy (&pSmt->mutexEvent);
if (pSmt->pThreadPEncCtx != NULL) {
pMa->WelsFree (pSmt->pThreadPEncCtx, "pThreadPEncCtx");
pSmt->pThreadPEncCtx = NULL;
}
for (int i = 0; i < MAX_THREADS_NUM; i++) {
if (pSmt->pThreadBsBuffer[i]) {
pMa->WelsFree (pSmt->pThreadBsBuffer[i], "pSmt->pThreadBsBuffer");
pSmt->pThreadBsBuffer[i] = NULL;
}
}
memset (&pSmt->bThreadBsBufferUsage, 0, MAX_THREADS_NUM * sizeof (bool));
if ((*ppCtx)->pTaskManage != NULL) {
WELS_DELETE_OP ((*ppCtx)->pTaskManage);
}
#ifdef MT_DEBUG
// file handle for debug
if (pSmt->pFSliceDiff) {
fclose (pSmt->pFSliceDiff);
pSmt->pFSliceDiff = NULL;
}
#endif//MT_DEBUG
pMa->WelsFree ((*ppCtx)->pSliceThreading, "SSliceThreading");
(*ppCtx)->pSliceThreading = NULL;
}
int32_t AppendSliceToFrameBs (sWelsEncCtx* pCtx, SLayerBSInfo* pLbi, const int32_t iSliceCount) {
SSlice** ppSliceInlayer = pCtx->pCurDqLayer->ppSliceInLayer;
SWelsSliceBs* pSliceBs = NULL;
int32_t iLayerSize = 0;
int32_t iNalIdxBase = pLbi->iNalCount;
int32_t iSliceIdx = 0;
iNalIdxBase = pLbi->iNalCount = 0;
while (iSliceIdx < iSliceCount) {
pSliceBs = &ppSliceInlayer[iSliceIdx]->sSliceBs;
if (pSliceBs != NULL && pSliceBs->uiBsPos > 0) {
int32_t iNalIdx = 0;
const int32_t iCountNal = pSliceBs->iNalIndex;
#if MT_DEBUG_BS_WR
assert (pSliceBs->bSliceCodedFlag);
#endif//MT_DEBUG_BS_WR
memmove (pCtx->pFrameBs + pCtx->iPosBsBuffer, pSliceBs->pBs, pSliceBs->uiBsPos); // confirmed_safe_unsafe_usage
pCtx->iPosBsBuffer += pSliceBs->uiBsPos;
iLayerSize += pSliceBs->uiBsPos;
while (iNalIdx < iCountNal) {
pLbi->pNalLengthInByte[iNalIdxBase + iNalIdx] = pSliceBs->iNalLen[iNalIdx];
++ iNalIdx;
}
pLbi->iNalCount += iCountNal;
iNalIdxBase += iCountNal;
}
++ iSliceIdx;
}
return iLayerSize;
}
int32_t WriteSliceBs (sWelsEncCtx* pCtx, SWelsSliceBs* pSliceBs, const int32_t iSliceIdx, int32_t& iSliceSize) {
const int32_t kiNalCnt = pSliceBs->iNalIndex;
int32_t iNalIdx = 0;
int32_t iNalSize = 0;
int32_t iReturn = ENC_RETURN_SUCCESS;
int32_t iTotalLeftLength = pSliceBs->uiSize - pSliceBs->uiBsPos;
SNalUnitHeaderExt* pNalHdrExt = &pCtx->pCurDqLayer->sLayerInfo.sNalHeaderExt;
uint8_t* pDst = pSliceBs->pBs;
assert (kiNalCnt <= 2);
if (kiNalCnt > 2)
return 0;
iSliceSize = 0;
while (iNalIdx < kiNalCnt) {
iNalSize = 0;
iReturn = WelsEncodeNal (&pSliceBs->sNalList[iNalIdx], pNalHdrExt, iTotalLeftLength - iSliceSize,
pDst, &iNalSize);
WELS_VERIFY_RETURN_IFNEQ (iReturn, ENC_RETURN_SUCCESS)
pSliceBs->iNalLen[iNalIdx] = iNalSize;
iSliceSize += iNalSize;
pDst += iNalSize;
++ iNalIdx;
}
pSliceBs->uiBsPos = iSliceSize;
return iReturn;
}
// thread process for coding one pSlice
int32_t DynamicDetectCpuCores() {
WelsLogicalProcessInfo info;
WelsQueryLogicalProcessInfo (&info);
return info.ProcessorCount;
}
int32_t AdjustBaseLayer (sWelsEncCtx* pCtx) {
SDqLayer* pCurDq = pCtx->ppDqLayerList[0];
int32_t iNeedAdj = 1;
#ifdef MT_DEBUG
int64_t iT0 = WelsTime();
#endif//MT_DEBUG
pCtx->pCurDqLayer = pCurDq;
// do not need adjust due to not different at both slices of consumed time
iNeedAdj = NeedDynamicAdjust (pCtx->ppDqLayerList[0]->ppSliceInLayer
, pCurDq->sSliceEncCtx.iSliceNumInFrame);
if (iNeedAdj)
DynamicAdjustSlicing (pCtx,
pCurDq,
0);
#ifdef MT_DEBUG
iT0 = WelsTime() - iT0;
if (pCtx->pSliceThreading->pFSliceDiff) {
fprintf (pCtx->pSliceThreading->pFSliceDiff,
"%6" PRId64" us adjust time at base spatial layer, iNeedAdj %d, DynamicAdjustSlicing()\n",
iT0, iNeedAdj);
}
#endif//MT_DEBUG
return iNeedAdj;
}
int32_t AdjustEnhanceLayer (sWelsEncCtx* pCtx, int32_t iCurDid) {
#ifdef MT_DEBUG
int64_t iT1 = WelsTime();
#endif//MT_DEBUG
int32_t iNeedAdj = 1;
// uiSliceMode of referencing spatial should be SM_FIXEDSLCNUM_SLICE
// if using spatial base layer for complexity estimation
const bool kbModelingFromSpatial = (pCtx->pCurDqLayer->pRefLayer != NULL && iCurDid > 0)
&& (pCtx->pSvcParam->sSpatialLayers[iCurDid - 1].sSliceArgument.uiSliceMode == SM_FIXEDSLCNUM_SLICE
&& pCtx->pSvcParam->iMultipleThreadIdc >= pCtx->pSvcParam->sSpatialLayers[iCurDid -
1].sSliceArgument.uiSliceNum);
if (kbModelingFromSpatial) { // using spatial base layer for complexity estimation
// do not need adjust due to not different at both slices of consumed time
iNeedAdj = NeedDynamicAdjust (pCtx->ppDqLayerList[iCurDid - 1]->ppSliceInLayer,
pCtx->pCurDqLayer->sSliceEncCtx.iSliceNumInFrame);
if (iNeedAdj)
DynamicAdjustSlicing (pCtx,
pCtx->pCurDqLayer,
iCurDid
);
} else { // use temporal layer for complexity estimation
// do not need adjust due to not different at both slices of consumed time
iNeedAdj = NeedDynamicAdjust (pCtx->ppDqLayerList[iCurDid]->ppSliceInLayer,
pCtx->pCurDqLayer->sSliceEncCtx.iSliceNumInFrame);
if (iNeedAdj)
DynamicAdjustSlicing (pCtx,
pCtx->pCurDqLayer,
iCurDid
);
}
#ifdef MT_DEBUG
iT1 = WelsTime() - iT1;
if (pCtx->pSliceThreading->pFSliceDiff) {
fprintf (pCtx->pSliceThreading->pFSliceDiff,
"%6" PRId64" us adjust time at spatial layer %d, iNeedAdj %d, DynamicAdjustSlicing()\n",
iT1, iCurDid, iNeedAdj);
}
#endif//MT_DEBUG
return iNeedAdj;
}
#if defined(MT_DEBUG)
void TrackSliceComplexities (sWelsEncCtx* pCtx, const int32_t iCurDid) {
const int32_t kiCountSliceNum = pCtx->pCurDqLayer->sSliceEncCtx.iSliceNumInFrame;
SSlice** ppSliceInLayer = pCtx->pCurDqLayer->ppSliceInLayer;
if (kiCountSliceNum > 0) {
int32_t iSliceIdx = 0;
do {
fprintf (pCtx->pSliceThreading->pFSliceDiff, "%6.3f complexity pRatio at iDid %d pSlice %d\n",
ppSliceInLayer[iSliceIdx]->iSliceComplexRatio, iCurDid, iSliceIdx);
++ iSliceIdx;
} while (iSliceIdx < kiCountSliceNum);
}
}
#endif
#if defined(MT_DEBUG)
void TrackSliceConsumeTime (sWelsEncCtx* pCtx, int32_t* pDidList, const int32_t iSpatialNum) {
SWelsSvcCodingParam* pPara = NULL;
int32_t iSpatialIdx = 0;
if (iSpatialNum > MAX_DEPENDENCY_LAYER)
return;
pPara = pCtx->pSvcParam;
while (iSpatialIdx < iSpatialNum) {
const int32_t kiDid = pDidList[iSpatialIdx];
SSliceArgument* pSliceArgument = &pPara->sSpatialLayers[kiDid].sSliceArgument;
SDqLayer* pCurDq = pCtx->ppDqLayerList[kiDid];
SSlice** ppSliceInLayer = pCurDq->ppSliceInLayer;
SSliceCtx* pSliceCtx = &pCurDq->sSliceEncCtx;
const uint32_t kuiCountSliceNum = pSliceCtx->iSliceNumInFrame;
if (pCtx->pSliceThreading) {
if (pCtx->pSliceThreading->pFSliceDiff
&& ((pSliceArgument->uiSliceMode == SM_FIXEDSLCNUM_SLICE) || (pSliceArgument->uiSliceMode == SM_SIZELIMITED_SLICE))
&& pPara->iMultipleThreadIdc > 1
&& pPara->iMultipleThreadIdc >= kuiCountSliceNum) {
uint32_t i = 0;
uint32_t uiMaxT = 0;
int32_t iMaxI = 0;
while (i < kuiCountSliceNum) {
fprintf (pCtx->pSliceThreading->pFSliceDiff, "%6d us consume_time coding_idx %d iDid %d pSlice %d\n",
ppSliceInLayer[i]->uiSliceConsumeTime, pCtx->iCodingIndex, kiDid, i /*/ 1000*/);
if (ppSliceInLayer[i]->uiSliceConsumeTime > uiMaxT) {
uiMaxT = ppSliceInLayer[i]->uiSliceConsumeTime;
iMaxI = i;
}
++ i;
}
fprintf (pCtx->pSliceThreading->pFSliceDiff, "%6d us consume_time_max coding_idx %d iDid %d pSlice %d\n", uiMaxT,
pCtx->iCodingIndex, kiDid, iMaxI /*/ 1000*/);
}
}
++ iSpatialIdx;
}
}
#endif//#if defined(MT_DEBUG)
void SetOneSliceBsBufferUnderMultithread (sWelsEncCtx* pCtx, const int32_t kiThreadIdx, SSlice* pSlice) {
SWelsSliceBs* pSliceBs = &pSlice->sSliceBs;
pSliceBs->pBsBuffer = pCtx->pSliceThreading->pThreadBsBuffer[kiThreadIdx];
pSliceBs->uiBsPos = 0;
}
}