openh264/codec/encoder/plus/src/welsEncoderExt.cpp

/*!
 * \copy
 *     Copyright (c)  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.
 *
 */

#include <assert.h>
#include "welsEncoderExt.h"
#include "welsCodecTrace.h"
#include "typedefs.h"
#include "wels_const.h"
#include "utils.h"
#include "macros.h"

#include "crt_util_safe_x.h"	// Safe CRT routines like util for cross platforms
#include "ref_list_mgr_svc.h"

#include <time.h>
#if defined(WIN32) /*&& defined(_DEBUG)*/

#include <windows.h>
#include <stdio.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/timeb.h>
#else
#include <sys/time.h>
#endif

namespace WelsSVCEnc {

/*
 *	CWelsH264SVCEncoder class implementation
 */
CWelsH264SVCEncoder::CWelsH264SVCEncoder()
  :	m_pEncContext (NULL),
#if defined(WIN32)||defined(_MACH_PLATFORM)||defined(__GNUC__)
    m_pWelsTrace (NULL),
#endif
    m_pSrcPicList (NULL),
    m_iSrcListSize (0),
    m_iMaxPicWidth (0),
    m_iMaxPicHeight (0),
    m_iCspInternal (0),
    m_bInitialFlag (FALSE) {
#ifdef REC_FRAME_COUNT
  int32_t m_uiCountFrameNum = 0;
#endif//REC_FRAME_COUNT

#ifdef OUTPUT_BIT_STREAM
  str_t strStreamFileName[1024] = { 0 };  //for .264
  int32_t iBufferUsed = 0;
  int32_t iBufferLeft = 1023;

  str_t strLenFileName[1024] = { 0 }; //for .len
  int32_t iBufferUsedSize = 0;
  int32_t iBufferLeftSize = 1023;
#endif//OUTPUT_BIT_STREAM

#ifdef OUTPUT_BIT_STREAM
  time_t tTime;

#if defined( WIN32 )
#if defined(_MSC_VER)
#if _MSC_VER>=1500
  struct tm tTimeNow;
#else
  struct tm* tTimeNow;
#endif//_MSC_VER>=1500
#endif//_MSC_VER
  struct _timeb tTimeb;

  time (&tTime);
#if defined(_MSC_VER)
#if _MSC_VER>=1500
  LOCALTIME (&tTimeNow, &tTime);
#else
  tTimeNow = LOCALTIME (&tTime);
  if (NULL == tTimeNow)
    return;
#endif//_MSC_VER>=1500
#endif//_MSC_VER
  FTIME (&tTimeb);
#elif defined( __GNUC__ )
  struct tm* tTimeNow;
  struct timeval tTimev;
  time (&tTime);
  tTimeNow = (struct tm*)localtime (&tTime);
  gettimeofday (&tTimev, NULL);
#endif//WIN32	

#ifdef WIN32
#if defined(_MSC_VER)
#if _MSC_VER>=1500
  iBufferUsed      += SNPRINTF (strStreamFileName,      iBufferLeft, iBufferLeft,      "enc_bs_0x%p_", (void*)this);
  iBufferUsedSize += SNPRINTF (strLenFileName, iBufferLeftSize, iBufferLeftSize, "enc_size_0x%p_", (void*)this);
#else
  iBufferUsed      += SNPRINTF (strStreamFileName,      iBufferLeft,      "enc_bs_0x%p_", (void*)this);
  iBufferUsedSize += SNPRINTF (strLenFileName, iBufferLeftSize, "enc_size_0x%p_", (void*)this);
#endif//_MSC_VER>=1500
#endif//_MSC_VER
#else
  iBufferUsed      += SNPRINTF (strStreamFileName,      iBufferLeft,      "/tmp/enc_bs_0x%p_", (void*)this);
  iBufferUsedSize += SNPRINTF (strLenFileName, iBufferLeftSize, "/tmp/enc_size_0x%p", (void*)this);
#endif//WIN32


  iBufferLeft -= iBufferUsed;
  if (iBufferLeft > iBufferUsed) {
#if defined(_GNUC__)
    iBufferUsed += strftime (&strStreamFileName[iBufferUsed], iBufferLeft, "%y%m%d%H%M%S", tTimeNow);
#else
#if defined(_MSC_VER)
    iBufferUsed += strftime (&strStreamFileName[iBufferUsed], iBufferLeft, "%y%m%d%H%M%S",
#if _MSC_VER>=1500
                             & tTimeNow
#else
                             tTimeNow
#endif//_MSC_VER>=1500
                            );
#endif//_MSC_VER			
#endif//__GNUC__
    iBufferLeft -= iBufferUsed;
  }

  iBufferLeftSize -= iBufferUsedSize;
  if (iBufferLeftSize > iBufferUsedSize) {
#if defined(_GNUC__)
    iBufferUsedSize += strftime (&strLenFileName[iBufferUsedSize], iBufferLeftSize, "%y%m%d%H%M%S", tTimeNow);
#else
#if defined(_MSC_VER)
    iBufferUsedSize += strftime (&strLenFileName[iBufferUsedSize], iBufferLeftSize, "%y%m%d%H%M%S",
#if _MSC_VER>=1500
                                 & tTimeNow
#else
                                 tTimeNow
#endif//_MSC_VER>=1500
                                );
#endif//_MSC_VER
#endif//__GNUC__
    iBufferLeftSize -= iBufferUsedSize;
  }

  if (iBufferLeft > iBufferUsed) {
#ifdef WIN32
#if defined(_MSC_VER)
#if _MSC_VER>=1500
    iBufferUsed += SNPRINTF (&strStreamFileName[iBufferUsed], iBufferLeft, iBufferLeft, ".%03.3u.264", tTimeb.millitm);
#else
    iBufferUsed += SNPRINTF (&strStreamFileName[iBufferUsed], iBufferLeft, ".%03.3u.264", tTimeb.millitm);
#endif//_MSC_VER>=1500
#endif//_MSC_VER
#else
    iBufferUsed += SNPRINTF (&strStreamFileName[iBufferUsed], iBufferLeft, ".%03.3u.264", tTimev.tv_usec / 1000);
#endif//WIN32
    iBufferLeft -= iBufferUsed;
  }

  if (iBufferLeftSize > iBufferUsedSize) {
#ifdef WIN32
#if defined(_MSC_VER)
#if _MSC_VER>=1500
    iBufferUsedSize += SNPRINTF (&strLenFileName[iBufferUsedSize], iBufferLeftSize, iBufferLeftSize, ".%03.3u.len",
                                 tTimeb.millitm);
#else
    iBufferUsedSize += SNPRINTF (&strLenFileName[iBufferUsedSize], iBufferLeftSize, ".%03.3u.len", tTimeb.millitm);
#endif//_MSC_VER>=1500
#endif//_MSC_VER
#else
    iBufferUsedSize += SNPRINTF (&strLenFileName[iBufferUsedSize], iBufferLeftSize, ".%03.3u.len", tTimev.tv_usec / 1000);
#endif//WIN32
    iBufferLeftSize -= iBufferUsedSize;
  }

#if defined(__GNUC__)
  m_pFileBs       = FOPEN (strStreamFileName,      "wb");
  m_pFileBsSize	= FOPEN (strLenFileName, "wb");
#else
#if defined(_MSC_VER)
#if _MSC_VER>=1500
  FOPEN (&m_pFileBs, strStreamFileName,      "wb");
  FOPEN (&m_pFileBsSize, strLenFileName, "wb");
#else
  m_pFileBs       = FOPEN (strStreamFileName,      "wb");
  m_pFileBsSize	= FOPEN (strLenFileName, "wb");
#endif//_MSC_VER>=1500
#endif//_MSC_VER
#endif//__GNUC__

  m_bSwitch	= FALSE;
  m_iSwitchTimes	= 0;
#endif//OUTPUT_BIT_STREAM

  InitEncoder();
}

CWelsH264SVCEncoder::~CWelsH264SVCEncoder() {
  WelsLog (NULL, WELS_LOG_INFO, "CWelsH264SVCEncoder::~CWelsH264SVCEncoder()\n");
#if defined(WIN32)||defined(_MACH_PLATFORM)||defined(__GNUC__)

  if (m_pWelsTrace != NULL) {
    delete m_pWelsTrace;
    m_pWelsTrace = NULL;
  }
#endif
#ifdef REC_FRAME_COUNT
  WelsLog (m_pEncContext, WELS_LOG_INFO,
           "CWelsH264SVCEncoder::~CWelsH264SVCEncoder(), m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n", m_uiCountFrameNum,
           m_iCspInternal);
#endif

#ifdef REC_FRAME_COUNT
  m_uiCountFrameNum = 0;
#endif//REC_FRAME_COUNT

#ifdef OUTPUT_BIT_STREAM
  if (m_pFileBs) {
    fclose (m_pFileBs);
    m_pFileBs = NULL;
  }
  if (m_pFileBsSize) {
    fclose (m_pFileBsSize);
    m_pFileBsSize = NULL;
  }
  m_bSwitch	= FALSE;
  m_iSwitchTimes	= 0;
#endif//OUTPUT_BIT_STREAM

  Uninitialize();
}

void CWelsH264SVCEncoder::InitEncoder (void) {
#if defined(WIN32)||defined(_MACH_PLATFORM)||defined(__GNUC__)

#ifdef REC_FRAME_COUNT
  WelsLog (m_pEncContext, WELS_LOG_INFO,
           "CWelsH264SVCEncoder::InitEncoder, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n", m_uiCountFrameNum, m_iCspInternal);
#endif

  m_pWelsTrace	= new welsCodecTrace();
  if (m_pWelsTrace != NULL) {
    const int32_t iWelsTraceExistingFlag = m_pWelsTrace->WelsTraceModuleIsExist();
    if (iWelsTraceExistingFlag) {
      m_pWelsTrace->SetTraceLevel (WELS_LOG_DEFAULT);
      WelsSetLogCallback (welsCodecTrace::CODEC_TRACE);
    }
  }

  // initialization
  WelsSetLogLevel (WELS_LOG_DEFAULT);	// no output, WELS_LOG_QUIET
#endif
}

/* Interfaces override from ISVCEncoder */

/*
 *	SVC Encoder Initialization
 */
int CWelsH264SVCEncoder::Initialize (SVCEncodingParam* argv, const INIT_TYPE iInitType) {
  if (INIT_TYPE_PARAMETER_BASED != iInitType || NULL == argv) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR, "CWelsH264SVCEncoder::Initialize(), invalid iInitType= %d, argv= 0x%p\n",
             iInitType, (void*)argv);
    return cmInitParaError;
  }

  if (m_bInitialFlag) {
    WelsLog (m_pEncContext, WELS_LOG_WARNING, "CWelsH264SVCEncoder::Initialize(), reinitialize, m_bInitialFlag= %d\n",
             m_bInitialFlag);
    Uninitialize();
  }

  SVCEncodingParam		sEncodingParam;
  SWelsSvcCodingParam	sConfig (true);

  memcpy (&sEncodingParam, argv, sizeof (SVCEncodingParam));	// confirmed_safe_unsafe_usage

#ifdef REC_FRAME_COUNT
  WelsLog (m_pEncContext, WELS_LOG_INFO, "CWelsH264SVCEncoder::Initialize, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
           m_uiCountFrameNum, m_iCspInternal);
  WelsLog (m_pEncContext, WELS_LOG_INFO,
           "coding_param->iPicWidth= %d;coding_param->iPicHeight= %d;coding_param->iTargetBitrate= %d;coding_param->iRCMode= %d;coding_param->iTemporalLayerNum= %d;coding_param->iSpatialLayerNum= %d;coding_param->fFrameRate= %.6ff;coding_param->iInputCsp= %d;coding_param->iKeyPicCodingMode= %d;coding_param->uiIntraPeriod= %d;coding_param->bEnableSpsPpsIdAddition = %d;coding_param->bPrefixNalAddingCtrl = %d;coding_param->bEnableDenoise= %d;coding_param->bEnableBackgroundDetection= %d;coding_param->bEnableAdaptiveQuant= %d;coding_param->bEnableCropPic= %d;coding_param->bEnableLongTermReference= %d;coding_param->iLtrMarkPeriod= %d;\n",
           sEncodingParam.iPicWidth,
           sEncodingParam.iPicHeight,
           sEncodingParam.iTargetBitrate,
           sEncodingParam.iRCMode,
           sEncodingParam.iTemporalLayerNum,
           sEncodingParam.iSpatialLayerNum,
           sEncodingParam.fFrameRate,
           sEncodingParam.iInputCsp,
           sEncodingParam.iKeyPicCodingMode,
           sEncodingParam.iIntraPeriod,
           sEncodingParam.bEnableSpsPpsIdAddition,
           sEncodingParam.bPrefixNalAddingCtrl,
           sEncodingParam.bEnableDenoise,
           sEncodingParam.bEnableBackgroundDetection,
           sEncodingParam.bEnableAdaptiveQuant,
           sEncodingParam.bEnableCropPic,
           sEncodingParam.bEnableLongTermReference,
           sEncodingParam.iLtrMarkPeriod);
  int32_t i = 0;
  while (i < sEncodingParam.iSpatialLayerNum) {
    SSpatialLayerConfig* spatial_cfg = &sEncodingParam.sSpatialLayers[i];
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "coding_param->sSpatialLayers[%d]: .iVideoWidth= %d; .iVideoHeight= %d; .fFrameRate= %.6ff; .iQualityLayerNum= %d; .iSpatialBitrate= %d; .iCgsSnrRefined= %d; .iInterSpatialLayerPredFlag= %d; .sSliceCfg.uiSliceMode= %d; .sSliceCfg.sSliceArgument.uiSliceNum= %d; .sSliceCfg.sSliceArgument.uiSliceSizeConstraint= %d;\n",
             i, spatial_cfg->iVideoWidth,
             spatial_cfg->iVideoHeight,
             spatial_cfg->fFrameRate,
             spatial_cfg->iQualityLayerNum,
             spatial_cfg->iSpatialBitrate,
             spatial_cfg->iCgsSnrRefined,
             spatial_cfg->iInterSpatialLayerPredFlag,
             spatial_cfg->sSliceCfg.uiSliceMode,
             spatial_cfg->sSliceCfg.sSliceArgument.uiSliceNum,
             spatial_cfg->sSliceCfg.sSliceArgument.uiSliceSizeConstraint
            );
    ++ i;
  }
#endif//REC_FRAME_COUNT

  // Convert SVCEncodingParam into WelsSVCParamConfig here..
  if (sConfig.ParamTranscode (sEncodingParam, true)) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR, "CWelsH264SVCEncoder::Initialize(), parameter_translation failed.\n");
    Uninitialize();
    return cmInitParaError;
  }

  m_iSrcListSize  = 1;

  return Initialize ((void*)&sConfig, INIT_TYPE_CONFIG_BASED);
}

int CWelsH264SVCEncoder::Initialize (void* argv, const INIT_TYPE iInitType) {
  if (INIT_TYPE_CONFIG_BASED != iInitType || NULL == argv) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR, "CWelsH264SVCEncoder::Initialize(), invalid iInitType= %d, argv= 0x%p.\n",
             iInitType, (void*)argv);
    return cmInitParaError;
  }

  if (m_bInitialFlag) {
    WelsLog (m_pEncContext, WELS_LOG_WARNING, "CWelsH264SVCEncoder::Initialize(), reinitialize, m_bInitialFlag= %d.\n",
             m_bInitialFlag);
    Uninitialize();
  }

  SWelsSvcCodingParam*  pCfg = static_cast<SWelsSvcCodingParam*> (argv);

  const int32_t iColorspace = pCfg->iInputCsp;
  if (0 == iColorspace) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR, "CWelsH264SVCEncoder::Initialize(), invalid iInputCsp= %d.\n", iColorspace);
    Uninitialize();
    return cmInitParaError;
  }

  // Check valid parameters
  const int32_t iNumOfLayers = pCfg->iNumDependencyLayer;
  if (iNumOfLayers < 1 || iNumOfLayers > MAX_DEPENDENCY_LAYER) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR,
             "CWelsH264SVCEncoder::Initialize(), invalid iNumDependencyLayer= %d, valid at range of [1, %d].\n", iNumOfLayers,
             MAX_DEPENDENCY_LAYER);
    Uninitialize();
    return cmInitParaError;
  }
  if (pCfg->iNumTemporalLayer < 1)
    pCfg->iNumTemporalLayer	= 1;
  if (pCfg->iNumTemporalLayer > MAX_TEMPORAL_LEVEL) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR,
             "CWelsH264SVCEncoder::Initialize(), invalid iNumTemporalLayer= %d, valid at range of [1, %d].\n",
             pCfg->iNumTemporalLayer, MAX_TEMPORAL_LEVEL);
    Uninitialize();
    return cmInitParaError;
  }

  //	assert( cfg.uiGopSize >= 1 && ( cfg.uiIntraPeriod && (cfg.uiIntraPeriod % cfg.uiGopSize) == 0) );

  if (pCfg->uiGopSize < 1 || pCfg->uiGopSize > MAX_GOP_SIZE) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR,
             "CWelsH264SVCEncoder::Initialize(), invalid uiGopSize= %d, valid at range of [1, %d].\n", pCfg->uiGopSize,
             MAX_GOP_SIZE);
    Uninitialize();
    return cmInitParaError;
  }

  if (!WELS_POWER2_IF (pCfg->uiGopSize)) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR,
             "CWelsH264SVCEncoder::Initialize(), invalid uiGopSize= %d, valid at range of [1, %d] and yield to power of 2.\n",
             pCfg->uiGopSize, MAX_GOP_SIZE);
    Uninitialize();
    return cmInitParaError;
  }

  if (pCfg->uiIntraPeriod && pCfg->uiIntraPeriod < pCfg->uiGopSize) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR,
             "CWelsH264SVCEncoder::Initialize(), invalid uiIntraPeriod= %d, valid in case it equals to 0 for unlimited intra period or exceeds specified uiGopSize= %d.\n",
             pCfg->uiIntraPeriod, pCfg->uiGopSize);
    Uninitialize();
    return cmInitParaError;
  }

  if ((pCfg->uiIntraPeriod && (pCfg->uiIntraPeriod & (pCfg->uiGopSize - 1)) != 0)) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR,
             "CWelsH264SVCEncoder::Initialize(), invalid uiIntraPeriod= %d, valid in case it equals to 0 for unlimited intra period or exceeds specified uiGopSize= %d also multiple of it.\n",
             pCfg->uiIntraPeriod, pCfg->uiGopSize);
    Uninitialize();
    return cmInitParaError;
  }

  // Fine tune num_ref_num
  if (pCfg->bEnableLongTermReference) {
    pCfg->iLTRRefNum = LONG_TERM_REF_NUM;
  } else {
    pCfg->iLTRRefNum = 0;
  }
  pCfg->iNumRefFrame = ((pCfg->uiGopSize >> 1) > 1) ? ((pCfg->uiGopSize >> 1) + pCfg->iLTRRefNum) :
                       (MIN_REF_PIC_COUNT + pCfg->iLTRRefNum);

  pCfg->iNumRefFrame = WELS_CLIP3 (pCfg->iNumRefFrame, MIN_REF_PIC_COUNT, MAX_REFERENCE_PICTURE_COUNT_NUM);

  if (pCfg->uiLtrMarkPeriod == 0) {
    pCfg->uiLtrMarkPeriod = 30;
  }

  const int32_t kiDecStages = WELS_LOG2 (pCfg->uiGopSize);
  pCfg->iInputCsp			= iColorspace;
  pCfg->iNumTemporalLayer	= (int8_t) (1 + kiDecStages);
  pCfg->iLoopFilterAlphaC0Offset	= WELS_CLIP3 (pCfg->iLoopFilterAlphaC0Offset, -6, 6);
  pCfg->iLoopFilterBetaOffset		= WELS_CLIP3 (pCfg->iLoopFilterBetaOffset, -6, 6);

//	m_pSrcPicList	= (SSourcePicture **)WelsMalloc( pCfg->iNumDependencyLayer * sizeof(SSourcePicture *), "m_pSrcPicList" );
  // prefer use new/delete pair due encoder intialization stage not start yet for CacheLineSize not detection here (16 or 64 not matched)
  m_pSrcPicList	= new SSourcePicture* [iNumOfLayers];

  if (NULL == m_pSrcPicList) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR,
             "CWelsH264SVCEncoder::Initialize(), pOut of memory due m_pSrcPicList memory request.\n");
    Uninitialize();
    return cmMallocMemeError;
  }

  // decide property list size between INIT_TYPE_PARAMETER_BASED/INIT_TYPE_CONFIG_BASED
  m_iMaxPicWidth	= pCfg->iActualPicWidth;
  m_iMaxPicHeight	= pCfg->iActualPicHeight;
  m_iSrcListSize  = iNumOfLayers;

  for (int32_t i = 0; i < m_iSrcListSize; ++ i) {
//		m_pSrcPicList[i]	= (SSourcePicture *)WelsMalloc( sizeof(SSourcePicture), "m_pSrcPicList[]" );
    // prefer use new/delete pair due encoder intialization stage not start yet for CacheLineSize not detection here (16 or 64 not matched)
    m_pSrcPicList[i]	= new SSourcePicture;

    if (NULL == m_pSrcPicList[i]) {
      WelsLog (m_pEncContext, WELS_LOG_ERROR,
               "CWelsH264SVCEncoder::Initialize(), pOut of memory due m_pSrcPicList[%d] memory request.\n", i);
      Uninitialize();
      m_iSrcListSize = 0;
      return cmMallocMemeError;
    }
    InitPic (m_pSrcPicList[i], iColorspace, m_iMaxPicWidth, m_iMaxPicHeight);
  }

#if defined(OUTPUT_BIT_STREAM) || defined(ENABLE_TRACE_FILE)
  str_t fpath[MAX_FNAME_LEN] = {0};
#if defined(__GNUC__)
  SNPRINTF (fpath, MAX_FNAME_LEN, "/tmp/");		// confirmed_safe_unsafe_usage

#else//__GNUC__

#if defined (_MSC_VER)
#if _MSC_VER>=1500
  SNPRINTF (fpath, MAX_FNAME_LEN, MAX_FNAME_LEN, ".\\");		// confirmed_safe_unsafe_usage
#else
  SNPRINTF (fpath, MAX_FNAME_LEN, ".\\");		// confirmed_safe_unsafe_usage
#endif//_MSC_VER>=1500
#endif//_MSC_VER
#endif //__GNUC__

  strcpy (pCfg->sTracePath, fpath);		// confirmed_safe_unsafe_usage

#endif //#if defined(OUTPUT_BIT_STREAM) || defined(ENABLE_TRACE_FILE)

  if (WelsInitEncoderExt (&m_pEncContext, pCfg)) {
    WelsLog (m_pEncContext, WELS_LOG_ERROR, "CWelsH264SVCEncoder::Initialize(), WelsInitEncoderExt failed.\n");
    Uninitialize();
    return cmInitParaError;
  }

  m_iCspInternal	= iColorspace;
  m_bInitialFlag  = TRUE;

  return cmResultSuccess;
}

/*
 *	SVC Encoder Uninitialization
 */
int32_t CWelsH264SVCEncoder::Uninitialize() {
  if (!m_bInitialFlag) {
    return 0;
  }

  WelsLog (m_pEncContext, WELS_LOG_INFO, "CWelsH264SVCEncoder::Uninitialize()..\n");

#ifdef REC_FRAME_COUNT
  WelsLog (m_pEncContext, WELS_LOG_INFO,
           "CWelsH264SVCEncoder::Uninitialize, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n", m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT

  if (NULL != m_pEncContext) {
    if (NULL != m_pSrcPicList) {
      for (int32_t i = 0; i < m_iSrcListSize; i++) {
        SSourcePicture* pic = m_pSrcPicList[i];
        if (NULL != pic) {
//					WelsFree( pic, "m_pSrcPicList[]" );
          // prefer use new/delete pair due encoder intialization stage not start yet for CacheLineSize not detection here (16 or 64 not matched)
          delete pic;

          pic = NULL;
        }
      }
//			WelsFree( m_pSrcPicList, "m_pSrcPicList" );
      // prefer use new/delete pair due encoder intialization stage not start yet for CacheLineSize not detection here (16 or 64 not matched)
      delete [] m_pSrcPicList;

      m_pSrcPicList = NULL;
      m_iSrcListSize = 0;
    }

    WelsUninitEncoderExt (&m_pEncContext);
    m_pEncContext	= NULL;
  }

  m_bInitialFlag = FALSE;

  return 0;
}


int32_t CWelsH264SVCEncoder::RawData2SrcPic (const uint8_t* pSrc) {
  assert (m_iSrcListSize > 0);

  int32_t y_length = m_iMaxPicWidth * m_iMaxPicHeight;
  m_pSrcPicList[0]->pData[0] = const_cast<uint8_t*> (pSrc);

  switch (m_iCspInternal & (~videoFormatVFlip)) {
  case videoFormatYVYU:
  case videoFormatUYVY:
  case videoFormatYUY2:
  case videoFormatRGB:
  case videoFormatBGR:
  case videoFormatBGRA:
  case videoFormatRGBA:
  case videoFormatARGB:
  case videoFormatABGR:
    m_pSrcPicList[0]->pData[1] = m_pSrcPicList[0]->pData[2] = NULL;
    break;
  case videoFormatI420:
  case videoFormatYV12:
    m_pSrcPicList[0]->pData[1] = m_pSrcPicList[0]->pData[0] + y_length;
    m_pSrcPicList[0]->pData[2] = m_pSrcPicList[0]->pData[1] + (y_length >> 2);
    break;
  default:
    return 1;
  }

  return 0;
}


/*
 *	SVC core encoding
 */
int CWelsH264SVCEncoder::EncodeFrame (const unsigned char* pSrc, SFrameBSInfo* pBsInfo) {
  if (! (pSrc && m_pEncContext && m_bInitialFlag)) {
    return videoFrameTypeInvalid;
  }

  int32_t uiFrameType = videoFrameTypeInvalid;

  if (RawData2SrcPic ((uint8_t*)pSrc) == 0) {
    uiFrameType = EncodeFrame (const_cast<const SSourcePicture**> (m_pSrcPicList), 1, pBsInfo);
  }

#ifdef REC_FRAME_COUNT
  ++ m_uiCountFrameNum;
  WelsLog (m_pEncContext, WELS_LOG_INFO,
           "CWelsH264SVCEncoder::EncodeFrame(), m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n", m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT		

#ifdef DUMP_SRC_PICTURE
  DumpSrcPicture (pSrc);
#endif // DUMP_SRC_PICTURE	

  return uiFrameType;
}


int CWelsH264SVCEncoder::EncodeFrame (const SSourcePicture**   pSrcPicList, int nSrcPicNum, SFrameBSInfo* pBsInfo) {
  if (! (pSrcPicList && m_pEncContext && m_bInitialFlag)) {
    return videoFrameTypeInvalid;
  }

  int32_t iFrameTypeReturned = 0;
  int32_t iFrameType = videoFrameTypeInvalid;

  if (nSrcPicNum > 0) {
    iFrameTypeReturned = WelsEncoderEncodeExt (m_pEncContext, pBsInfo, pSrcPicList, nSrcPicNum);
  } else {
    assert (0);
    return videoFrameTypeInvalid;
  }

  switch (iFrameTypeReturned) {
  case WELS_FRAME_TYPE_P:
    iFrameType	= videoFrameTypeP;
    break;
  case WELS_FRAME_TYPE_IDR:
    iFrameType	= videoFrameTypeIDR;
    break;
  case WELS_FRAME_TYPE_SKIP:
    iFrameType	= videoFrameTypeSkip;
    break;
  case WELS_FRAME_TYPE_I:
    iFrameType	= videoFrameTypeI;
    break;
  case WELS_FRAME_TYPE_AUTO:
  case WELS_FRAME_TYPE_B: // not support B pictures
    iFrameType	= videoFrameTypeInvalid;
    break;
  default:
    break;
  }



  ///////////////////for test
#ifdef OUTPUT_BIT_STREAM
  if (iFrameType != videoFrameTypeInvalid && iFrameType != videoFrameTypeSkip) {
    SLayerBSInfo* pLayer = NULL;
    int32_t i = 0, j = 0, iCurLayerBits = 0, total_bits = 0;

    if (m_bSwitch) {
      if (m_pFileBs) {
        fclose (m_pFileBs);
        m_pFileBs = NULL;
      }
      if (m_pFileBsSize) {
        fclose (m_pFileBsSize);
        m_pFileBsSize = NULL;
      }
      str_t strStreamFileName[128] = {0};
#if defined(__GNUC__)

      int32_t iLen = SNPRINTF (strStreamFileName, 128, "%sadj%d_w%d.264", m_pEncContext->sTracePath,  m_iSwitchTimes,
                               m_pEncContext->pSvcParam->iActualPicWidth);
      m_pFileBs = FOPEN (strStreamFileName, "wb");
      SNPRINTF (strStreamFileName, 128, "%sadj%d_w%d_size.iLen", m_pEncContext->sTracePath, m_iSwitchTimes,
                m_pEncContext->pSvcParam->iActualPicWidth);
      m_pFileBsSize = FOPEN (strStreamFileName, "wb");

#else//__GNUC__

#if defined (_MSC_VER)
#if _MSC_VER>=1500
      int32_t iLen = SNPRINTF (strStreamFileName, 128, 128, "adj%d_w%d.264", m_iSwitchTimes,
                               m_pEncContext->pSvcParam->iActualPicWidth);
      FOPEN (&m_pFileBs, strStreamFileName, "wb");
      SNPRINTF (strStreamFileName, 128, 128, "adj%d_w%d_size.iLen", m_iSwitchTimes,
                m_pEncContext->pSvcParam->iActualPicWidth);
      FOPEN (&m_pFileBsSize, strStreamFileName, "wb");
#else
      int32_t iLen = SNPRINTF (strStreamFileName, 128, "adj%d_w%d.264", m_iSwitchTimes,
                               m_pEncContext->pSvcParam->iActualPicWidth);
      m_pFileBs = FOPEN (strStreamFileName, "wb");
      SNPRINTF (strStreamFileName, 128, "adj%d_w%d_size.iLen", m_iSwitchTimes, m_pEncContext->pSvcParam->iActualPicWidth);
      m_pFileBsSize = FOPEN (strStreamFileName, "wb");
#endif//_MSC_VER>=1500
#endif//_MSC_VER


#endif//__GNUC__

      m_bSwitch = FALSE;
    }

    for (i = 0; i < pBsInfo->iLayerNum; i++) {
      pLayer = &pBsInfo->sLayerInfo[i];

      iCurLayerBits = 0;
      for (j = 0; j < pLayer->iNalCount; j++) {
        iCurLayerBits += pLayer->iNalLengthInByte[j];
      }
      total_bits += iCurLayerBits;
      if (m_pFileBs != NULL)
        fwrite (pLayer->pBsBuf, 1, iCurLayerBits, m_pFileBs);
    }

    if (m_pFileBsSize != NULL)
      fwrite (&total_bits, sizeof (int32_t), 1, m_pFileBsSize);
  }
#endif //OUTPUT_BIT_STREAM
#ifdef DUMP_SRC_PICTURE
  DumpSrcPicture (pSrcPicList[0]->pData[0]);
#endif // DUMP_SRC_PICTURE	

  return iFrameType;

}

/*
 * return: 0 - success; otherwise - failed;
 */
int CWelsH264SVCEncoder::PauseFrame (const unsigned char* kpSrc, SFrameBSInfo* pBsInfo) {
  int32_t  iReturn = 1;

  ForceIntraFrame (true);

  if (EncodeFrame (kpSrc, pBsInfo) != videoFrameTypeInvalid) {
    iReturn = 0;
  }

  // to avoid pause frame bitstream and
  // normal bitstream use different video channel.
  ForceIntraFrame (true);

  return (int)iReturn;
}


/*
 *	Force key frame
 */
int CWelsH264SVCEncoder::ForceIntraFrame (bool bIDR) {
  if (! (m_pEncContext && m_bInitialFlag)) {
    return 1;
  }

#ifdef REC_FRAME_COUNT
  WelsLog (m_pEncContext, WELS_LOG_INFO,
           "CWelsH264SVCEncoder::ForceIntraFrame(), bIDR= %d, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n", bIDR,
           m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT

  ForceCodingIDR (m_pEncContext);

  return 0;
}

/************************************************************************
* InDataFormat, IDRInterval, SVC Encode Param, Frame Rate, Bitrate,..
************************************************************************/
int CWelsH264SVCEncoder::SetOption (ENCODER_OPTION eOptionId, void* pOption) {
  if (NULL == pOption) {
    return cmInitParaError;
  }

  if (NULL == m_pEncContext || FALSE == m_bInitialFlag) {
    return cmInitExpected;
  }

  switch (eOptionId) {
  case ENCODER_OPTION_INTER_SPATIAL_PRED: {	// Inter spatial layer prediction flag
    WelsLog (m_pEncContext, WELS_LOG_INFO, "ENCODER_OPTION_INTER_SPATIAL_PRED, this feature not supported at present.\n");
  }
  break;
  case ENCODER_OPTION_DATAFORMAT: {	// Input color space
    int32_t iValue = * ((int32_t*)pOption);
    int32_t iColorspace = iValue;
    if (iColorspace == 0) {
      return cmInitParaError;
    }

#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_DATAFORMAT, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x, iValue= %d\n",
             m_uiCountFrameNum, m_iCspInternal, iValue);
#endif//REC_FRAME_COUNT


    int32_t iPicIdx = m_iSrcListSize - 1;
    while (iPicIdx >= 0) {
      if (m_pSrcPicList[iPicIdx] == NULL) {
        -- iPicIdx;
        if (iPicIdx < 0) return cmInitParaError;
        continue;
      }

      if (m_pSrcPicList[iPicIdx]->iColorFormat == iColorspace) {
        -- iPicIdx;
        continue;
      }

      InitPic (m_pSrcPicList[iPicIdx], iColorspace, m_iMaxPicWidth, m_iMaxPicHeight);
    }
    m_iCspInternal = iColorspace;
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_DATAFORMAT, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
             m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT
  }
  break;
  case ENCODER_OPTION_IDR_INTERVAL: {	// IDR Interval
    int32_t iValue	= * ((int32_t*)pOption);
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_IDR_INTERVAL, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x, iValue= %d\n",
             m_uiCountFrameNum, m_iCspInternal, iValue);
#endif//REC_FRAME_COUNT

    if (iValue < -1 || iValue == 0)
      iValue = 1;
    if (iValue == (int32_t)m_pEncContext->pSvcParam->uiIntraPeriod) {
      return cmResultSuccess;
    }


    m_pEncContext->pSvcParam->uiIntraPeriod	= (uint32_t)iValue;
  }
  break;
  case ENCODER_OPTION_SVC_ENCODE_PARAM: {	// SVC Encoding Parameter
    SVCEncodingParam		sEncodingParam;
    SWelsSvcCodingParam	sConfig (true);
    int32_t iInputColorspace = 0;
    int32_t iTargetWidth = 0;
    int32_t iTargetHeight = 0;

    memcpy (&sEncodingParam, pOption, sizeof (SVCEncodingParam));	// confirmed_safe_unsafe_usage
    WelsLog (m_pEncContext, WELS_LOG_INFO, "ENCODER_OPTION_SVC_ENCODE_PARAM, sEncodingParam.iInputCsp= 0x%x\n",
             sEncodingParam.iInputCsp);
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "coding_param->iPicWidth= %d;coding_param->iPicHeight= %d;coding_param->iTargetBitrate= %d;coding_param->iRCMode= %d;coding_param->iPaddingFlag= %d;coding_param->iTemporalLayerNum= %d;coding_param->iSpatialLayerNum= %d;coding_param->fFrameRate= %.6ff;coding_param->iInputCsp= %d;coding_param->iKeyPicCodingMode= %d;coding_param->uiIntraPeriod= %d;coding_param->bEnableSpsPpsIdAddition = %d;coding_param->bPrefixNalAddingCtrl = %d;coding_param->bEnableDenoise= %d;coding_param->bEnableBackgroundDetection= %d;coding_param->bEnableAdaptiveQuant= %d;coding_param->bEnableCropPic= %d;coding_param->bEnableLongTermReference= %d;coding_param->iLtrMarkPeriod= %d;\n",
             sEncodingParam.iPicWidth,
             sEncodingParam.iPicHeight,
             sEncodingParam.iTargetBitrate,
             sEncodingParam.iRCMode,
             sEncodingParam.iPaddingFlag,
             sEncodingParam.iTemporalLayerNum,
             sEncodingParam.iSpatialLayerNum,
             sEncodingParam.fFrameRate,
             sEncodingParam.iInputCsp,
             sEncodingParam.iKeyPicCodingMode,
             sEncodingParam.iIntraPeriod,
             sEncodingParam.bEnableSpsPpsIdAddition,
             sEncodingParam.bPrefixNalAddingCtrl,
             sEncodingParam.bEnableDenoise,
             sEncodingParam.bEnableBackgroundDetection,
             sEncodingParam.bEnableAdaptiveQuant,
             sEncodingParam.bEnableCropPic,
             sEncodingParam.bEnableLongTermReference,
             sEncodingParam.iLtrMarkPeriod);
    int32_t i = 0;
    while (i < sEncodingParam.iSpatialLayerNum) {
      SSpatialLayerConfig* pSpatialCfg = &sEncodingParam.sSpatialLayers[i];
      WelsLog (m_pEncContext, WELS_LOG_INFO,
               "coding_param->sSpatialLayers[%d]: .iVideoWidth= %d; .iVideoHeight= %d; .fFrameRate= %.6ff; .iQualityLayerNum= %d; .iSpatialBitrate= %d; .iCgsSnrRefined= %d; .iInterSpatialLayerPredFlag= %d; .sSliceCfg.uiSliceMode= %d; .sSliceCfg.sSliceArgument.iSliceNum= %d; .sSliceCfg.sSliceArgument.uiSliceSizeConstraint= %d;\n",
               i, pSpatialCfg->iVideoWidth,
               pSpatialCfg->iVideoHeight,
               pSpatialCfg->fFrameRate,
               pSpatialCfg->iQualityLayerNum,
               pSpatialCfg->iSpatialBitrate,
               pSpatialCfg->iCgsSnrRefined,
               pSpatialCfg->iInterSpatialLayerPredFlag,
               pSpatialCfg->sSliceCfg.uiSliceMode,
               pSpatialCfg->sSliceCfg.sSliceArgument.uiSliceNum,
               pSpatialCfg->sSliceCfg.sSliceArgument.uiSliceSizeConstraint
              );
      ++ i;
    }
#ifdef OUTPUT_BIT_STREAM
    if (sEncodingParam.sSpatialLayers[sEncodingParam.iSpatialLayerNum - 1].iVideoWidth !=
        m_pEncContext->pSvcParam->sDependencyLayers[m_pEncContext->pSvcParam->iNumDependencyLayer - 1].iFrameWidth) {
      ++ m_iSwitchTimes;
      m_bSwitch = TRUE;
    }
#endif//OUTPUT_BIT_STREAM
    if (sEncodingParam.iSpatialLayerNum < 1
        || sEncodingParam.iSpatialLayerNum > MAX_SPATIAL_LAYER_NUM) {	// verify number of spatial layer
      return cmInitParaError;
    }

    iInputColorspace	= sEncodingParam.iInputCsp;
    if (sConfig.ParamTranscode (sEncodingParam, true)) {
      return cmInitParaError;
    }
    if (sConfig.iNumDependencyLayer < 1) {
      return cmInitParaError;
    }
    iTargetWidth	= sConfig.iActualPicWidth;
    iTargetHeight	= sConfig.iActualPicHeight;
    if (m_pSrcPicList[0] == NULL) {
      return cmInitParaError;
    }
    if (m_iCspInternal != iInputColorspace || m_iMaxPicWidth != iTargetWidth
        || m_iMaxPicHeight != iTargetHeight) {	// for color space due to changed
      InitPic (m_pSrcPicList[0], iInputColorspace, iTargetWidth, iTargetHeight);
      m_iMaxPicWidth	= iTargetWidth;
      m_iMaxPicHeight	= iTargetHeight;
      m_iCspInternal	= iInputColorspace;
    }
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_SVC_ENCODE_PARAM, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
             m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT

    /* New configuration available here */
    sConfig.iInputCsp	= m_iCspInternal;	// I420 in default designed for presentation in encoder used internal
    sConfig.DetermineTemporalSettings();

    /* Check every field whether there is new request for memory block changed or else, Oct. 24, 2008 */
    WelsEncoderParamAdjust (&m_pEncContext, &sConfig);
  }
  break;
  case ENCODER_OPTION_FRAME_RATE: {	// Maximal input frame rate
    float iValue	= * ((float*)pOption);
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_FRAME_RATE, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x, iValue= %d\n",
             m_uiCountFrameNum, m_iCspInternal, iValue);
#endif//REC_FRAME_COUNT
    m_pEncContext->pSvcParam->fMaxFrameRate	= iValue;

  }
  break;
  case ENCODER_OPTION_iBitRate: {	// Target bit-rate
    int32_t iValue = * ((int32_t*)pOption);
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_iBitRate, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x, iValue= %d\n",
             m_uiCountFrameNum, m_iCspInternal, iValue);
#endif//REC_FRAME_COUNT
    m_pEncContext->pSvcParam->iTargetBitrate	= iValue;

  }
  break;
  case ENCODER_OPTION_RC_MODE: {	// 0:quality mode;1:bit-rate mode
    int32_t iValue = * ((int32_t*)pOption);
    m_pEncContext->pSvcParam->iRCMode	= iValue;
  }
  break;
  case ENCODER_PADDING_PADDING: {	// 0:disable padding;1:padding
    int32_t iValue = * ((int32_t*)pOption);
    m_pEncContext->pSvcParam->iPaddingFlag	= iValue;
  }
  break;
  case ENCODER_LTR_RECOVERY_REQUEST: {
    SLTRRecoverRequest* pLTR_Recover_Request = (SLTRRecoverRequest*) (pOption);
    FilterLTRRecoveryRequest (m_pEncContext, pLTR_Recover_Request);
  }
  break;
  case ENCODER_LTR_MARKING_FEEDBACK: {
    SLTRMarkingFeedback* fb = (SLTRMarkingFeedback*) (pOption);
    FilterLTRMarkingFeedback (m_pEncContext, fb);
  }
  break;
  case ENCOCER_LTR_MARKING_PERIOD: {
    uint32_t iValue = * ((uint32_t*) (pOption));
    m_pEncContext->pSvcParam->uiLtrMarkPeriod = iValue;
  }
  break;
  case ENCODER_OPTION_LTR: {
    uint32_t iValue = * ((uint32_t*) (pOption));
    m_pEncContext->pSvcParam->bEnableLongTermReference = iValue ? true : false;
    WelsLog (m_pEncContext, WELS_LOG_WARNING, " CWelsH264SVCEncoder::SetOption enable LTR = %d",
             m_pEncContext->pSvcParam->bEnableLongTermReference);
  }
  break;
  case ENCODER_OPTION_ENABLE_SSEI: {
    bool_t iValue = * ((bool_t*)pOption);
    m_pEncContext->pSvcParam->bEnableSSEI = iValue;
    WelsLog (m_pEncContext, WELS_LOG_INFO, " CWelsH264SVCEncoder::SetOption enable SSEI = %d \n",
             m_pEncContext->pSvcParam->bEnableSSEI);
  }
  break;
  case ENCODER_OPTION_ENABLE_PREFIX_NAL_ADDING: {
    bool_t iValue = * ((bool_t*)pOption);
    m_pEncContext->pSvcParam->bPrefixNalAddingCtrl = iValue;
    WelsLog (m_pEncContext, WELS_LOG_INFO, " CWelsH264SVCEncoder::SetOption bPrefixNalAddingCtrl = %d \n",
             m_pEncContext->pSvcParam->bPrefixNalAddingCtrl);
  }
  break;
  case ENCODER_OPTION_ENABLE_SPS_PPS_ID_ADDITION: {
    bool_t iValue = * ((bool_t*)pOption);

    m_pEncContext->pSvcParam->bEnableSpsPpsIdAddition = iValue;
    WelsLog (m_pEncContext, WELS_LOG_INFO, " CWelsH264SVCEncoder::SetOption enable SPS/PPS ID = %d \n",
             m_pEncContext->pSvcParam->bEnableSpsPpsIdAddition);
  }
  break;
  case ENCODER_OPTION_CURRENT_PATH: {
    if (m_pEncContext->pSvcParam != NULL) {
      str_t* path = static_cast<str_t*> (pOption);
      m_pEncContext->pSvcParam->pCurPath = path;
    }
  }
  break;
  default:
    return cmInitParaError;
  }

  return 0;
}

int CWelsH264SVCEncoder::GetOption (ENCODER_OPTION eOptionId, void* pOption) {
  if (NULL == pOption) {
    return cmInitParaError;
  }
  if (NULL == m_pEncContext || FALSE == m_bInitialFlag) {
    return cmInitExpected;
  }

  switch (eOptionId) {
  case ENCODER_OPTION_INTER_SPATIAL_PRED: {	// Inter spatial layer prediction flag
    WelsLog (m_pEncContext, WELS_LOG_INFO, "ENCODER_OPTION_INTER_SPATIAL_PRED, this feature not supported at present.\n");
  }
  break;
  case ENCODER_OPTION_DATAFORMAT: {	// Input color space
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::GetOption():ENCODER_OPTION_DATAFORMAT, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
             m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT

    * ((int32_t*)pOption)	= m_iCspInternal;
  }
  break;
  case ENCODER_OPTION_IDR_INTERVAL: {	// IDR Interval
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::GetOption():ENCODER_OPTION_IDR_INTERVAL, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
             m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT
    * ((int32_t*)pOption) = m_pEncContext->pSvcParam->uiIntraPeriod;
  }
  break;
  case ENCODER_OPTION_SVC_ENCODE_PARAM: {	// SVC Encoding Parameter
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::GetOption():ENCODER_OPTION_SVC_ENCODE_PARAM, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
             m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT
    memcpy (pOption, m_pEncContext->pSvcParam, sizeof (SWelsSvcCodingParam));	// confirmed_safe_unsafe_usage
  }
  break;
  case ENCODER_OPTION_FRAME_RATE: {	// Maximal input frame rate
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::GetOption():ENCODER_OPTION_FRAME_RATE, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
             m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT
    * ((float*)pOption)	= m_pEncContext->pSvcParam->fMaxFrameRate;
  }
  break;
  case ENCODER_OPTION_iBitRate: {	// Target bit-rate
#ifdef REC_FRAME_COUNT
    WelsLog (m_pEncContext, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::GetOption():ENCODER_OPTION_iBitRate, m_uiCountFrameNum= %d, m_iCspInternal= 0x%x\n",
             m_uiCountFrameNum, m_iCspInternal);
#endif//REC_FRAME_COUNT
    * ((int32_t*)pOption)	= m_pEncContext->pSvcParam->iTargetBitrate;
  }
  break;
  default:
    return cmInitParaError;
  }

  return 0;
}

void CWelsH264SVCEncoder::DumpSrcPicture (const uint8_t* pSrc) {
#ifdef DUMP_SRC_PICTURE
  FILE* pFile = NULL;
  str_t strFileName[256] = {0};
  const int32_t iDataLength = m_iMaxPicWidth * m_iMaxPicHeight;

#if defined(__GNUC__)
  STRNCPY (strFileName, 256, "/tmp/pic_in_", STRNLEN ("/tmp/pic_in_", 255));	// confirmed_safe_unsafe_usage
#else
  STRNCPY (strFileName, 256, "d:\\incoming\\mosaic_st\\pic_in_", STRNLEN ("d:\\incoming\\mosaic_st\\pic_in_",
           255));	// confirmed_safe_unsafe_usage
#endif//__GNUC__

  if (m_iMaxPicWidth == 640) {
    STRCAT (strFileName, 256, "360p.");	// confirmed_safe_unsafe_usage
  } else if (m_iMaxPicWidth == 320) {
    STRCAT (strFileName, 256, "180p.");	// confirmed_safe_unsafe_usage
  } else if (m_iMaxPicWidth == 160) {
    STRCAT (strFileName, 256, "90p.");	// confirmed_safe_unsafe_usage
  }

  switch (m_iCspInternal) {
  case videoFormatI420:
  case videoFormatYV12:
    STRCAT (strFileName, 256, "yuv");	// confirmed_safe_unsafe_usage
#if defined(__GNUC__)
    pFile = FOPEN (strFileName, "ab+");
#else
#if defined(_MSC_VER)
#if _MSC_VER>=1500
    FOPEN (&pFile, strFileName, "ab+");
#else
    pFile = FOPEN (strFileName, "ab+");
#endif//_MSC_VER>=1500
#endif//_MSC_VER			
#endif//__GNUC__
    //				WelsLog( m_pEncContext, WELS_LOG_INFO, "WELS_CSP_I420, m_iCspInternal= 0x%x\n", m_iCspInternal);
    if (NULL != pFile) {
      fwrite (pSrc, sizeof (uint8_t), (iDataLength * 3) >> 1, pFile);
      fflush (pFile);
      fclose (pFile);
    }
    break;
  case videoFormatRGB:
    STRCAT (strFileName, 256, "rgb");	// confirmed_safe_unsafe_usage
#if defined(__GNUC__)
    pFile = FOPEN (strFileName, "ab+");
#else
#if defined(_MSC_VER)
#if _MSC_VER>=1500
    FOPEN (&pFile, strFileName, "ab+");
#else
    pFile = FOPEN (strFileName, "ab+");
#endif//_MSC_VER>=1500
#endif//_MSC_VER			
#endif//__GNUC__
    if (NULL != pFile) {
      fwrite (pSrc, sizeof (uint8_t), iDataLength * 3, pFile);
      fflush (pFile);
      fclose (pFile);
    }
  case videoFormatBGR:
    STRCAT (strFileName, 256, "bgr");	// confirmed_safe_unsafe_usage
#if defined(__GNUC__)
    pFile = FOPEN (strFileName, "ab+");
#else
#if defined(_MSC_VER)
#if _MSC_VER>=1500
    FOPEN (&pFile, strFileName, "ab+");
#else
    pFile = FOPEN (strFileName, "ab+");
#endif//_MSC_VER>=1500
#endif//_MSC_VER			
#endif//__GNUC__
    //				WelsLog( m_pEncContext, WELS_LOG_INFO, "WELS_CSP_BGR, m_iCspInternal= 0x%x\n", m_iCspInternal);
    if (NULL != pFile) {
      fwrite (pSrc, sizeof (uint8_t), iDataLength * 3, pFile);
      fflush (pFile);
      fclose (pFile);
    }
    break;
  case videoFormatYUY2:
    STRCAT (strFileName, 256, "yuy2");	// confirmed_safe_unsafe_usage
#if defined(__GNUC__)
    pFile = FOPEN (strFileName, "ab+");
#else
#if defined(_MSC_VER)
#if _MSC_VER>=1500
    FOPEN (&pFile, strFileName, "ab+");
#else
    pFile = FOPEN (strFileName, "ab+");
#endif//_MSC_VER>=1500
#endif//_MSC_VER			
#endif//__GNUC__
    if (NULL != pFile) {
      fwrite (pSrc, sizeof (uint8_t), (CALC_BI_STRIDE (m_iMaxPicWidth,  16)) * m_iMaxPicHeight, pFile);
      fflush (pFile);
      fclose (pFile);
    }
    break;
  default:
    WelsLog (m_pEncContext, WELS_LOG_INFO, "Exclusive case, m_iCspInternal= 0x%x\n", m_iCspInternal);
    break;
  }
#endif//DUMP_SRC_PICTURE
  return;
}
}

using namespace WelsSVCEnc;

int32_t CreateSVCEncoder (ISVCEncoder** ppEncoder) {
  assert (ppEncoder);

  if (NULL == ppEncoder)
    return 1;

  if ((*ppEncoder = new CWelsH264SVCEncoder()) != NULL) {
    return 0;
  }

  return 1;
}

void DestroySVCEncoder (ISVCEncoder* pEncoder) {
  CWelsH264SVCEncoder* pSVCEncoder = (CWelsH264SVCEncoder*)pEncoder;

  if (pSVCEncoder) {
    delete pSVCEncoder;
    pSVCEncoder = NULL;
  }
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////