/*
 *  Author : Kai Zhang    kzhang@jdl.ac.cn
 */

#include "SIPParameters.h"

SIPParameters::SIPParameters():
m_uiLayerNum(0),
m_uiFrameNum(0),
m_pcLayerParameters(NULL),
m_uiInFps(0)
{
  //initialization 
}

SIPParameters::~SIPParameters()
{
  if(m_pcLayerParameters!=NULL)
  {
    delete[] m_pcLayerParameters;
    m_pcLayerParameters=NULL;
  }
}

ErrVal SIPParameters::create(SIPParameters*& rpcSIPParameters)
{
  rpcSIPParameters = new SIPParameters;
  ROT( NULL == rpcSIPParameters );
  return Err::m_nOK;
}

ErrVal SIPParameters::init  (Int argc,Char** argv )
{
  if(argc<2||argc>3)
  {
    xPrintUsage();
    return Err::m_nInvalidParameter;
  }
  
  FILE* pFile = fopen( argv[1], "rt" );
  
  if( ! pFile )
  {
    printf("\n\nCannot open config file \"%s\"\n\n", argv[1] );
    exit(1);
  }
  else
  {
    if(xReadConfigFile(pFile)!=Err::m_nOK)
    {
      printf("\n\nError while reading from config file \"%s\"\n\n", argv[1] );
      exit(1);
    }
    fclose( pFile );
  }

  RNOK(xCheck());

  if(argc==3)//FileLabel
  {
    for(UInt i=0;i<m_uiLayerNum;i++)
    {
      m_pcLayerParameters[i].m_strInputFileWithInterPred.insert(m_pcLayerParameters[i].m_strInputFileWithInterPred.find_last_of('.'),argv[2]);
      m_pcLayerParameters[i].m_strInputFileWithoutInterPred.insert(m_pcLayerParameters[i].m_strInputFileWithoutInterPred.find_last_of('.'),argv[2]);
      m_pcLayerParameters[i].m_strOutputFile.insert(m_pcLayerParameters[i].m_strOutputFile.find_last_of('.'),argv[2]);
    }
  }
  return Err::m_nOK;
}


void SIPParameters::xPrintUsage()
{
  printf("\nusage:\n\n");
  printf("SIPAnalyser <ConfigFile> [FileLabel]\n");
  printf("\n");
  exit(1);
}

ErrVal SIPParameters::xReadConfigFile(FILE *pFile)
{
  RNOKS(xReadLine(pFile,"",NULL));
  RNOKS(xReadLine(pFile,"",NULL));//logo

  RNOKS(xReadLine(pFile,"%d",&m_uiLayerNum));
  RNOKS(xReadLine(pFile,"%d",&m_uiFrameNum));
  RNOKS(xReadLine(pFile,"%d",&m_uiInFps));
  RNOKS(xReadLine(pFile,"",NULL));//separator

  if(m_pcLayerParameters!=NULL)
  {
    delete[] m_pcLayerParameters;
    m_pcLayerParameters=NULL;
  }
  m_pcLayerParameters=new LayerParameters[m_uiLayerNum];
  char acStrTemp[1024];

  for(UInt i=0;i<m_uiLayerNum;i++)
  {
    RNOKS(xReadLine(pFile,"",NULL));//separator
    RNOKS(xReadLine(pFile,"%f",&m_pcLayerParameters[i].m_fTolerableRatio));
    RNOKS(xReadLine(pFile,"%d",&m_pcLayerParameters[i].m_uiFps));
    RNOKS(xReadLine(pFile,"%s",acStrTemp));
    m_pcLayerParameters[i].m_strInputFileWithoutInterPred=acStrTemp;
    RNOKS(xReadLine(pFile,"%s",acStrTemp));
    m_pcLayerParameters[i].m_strInputFileWithInterPred=acStrTemp;
    RNOKS(xReadLine(pFile,"%s",acStrTemp));
    m_pcLayerParameters[i].m_strOutputFile=acStrTemp;
    RNOKS(xReadLine(pFile,"",NULL));//separator
  }

  return Err::m_nOK;
}

ErrVal SIPParameters::xReadLine( FILE* pFile, char* pcFormat, void* pPar )
{
  if( pPar )
  {
    int  result = fscanf( pFile, pcFormat, pPar );
    ROFS( result );
  }

  for( int n = 0; n < 1024; n++ )
  {
    if( '\n' == fgetc( pFile ) )
    {
      return Err::m_nOK;
    }
  }
  return Err::m_nERR;
}

ErrVal SIPParameters::destroy()
{
  if(m_pcLayerParameters!=NULL)
  {
    delete[] m_pcLayerParameters;
    m_pcLayerParameters=NULL;
  }
  delete this;

  return Err::m_nOK;
}

PLAYERPARAMETERS  SIPParameters::getLayerParameter(UInt uiLayer)
{
  AOF(m_pcLayerParameters);
  AOT(uiLayer>=m_uiLayerNum);

  return &m_pcLayerParameters[uiLayer];
}

ErrVal SIPParameters::xCheck()
{
  if(m_uiLayerNum<2||m_uiLayerNum>6)
  {
    printf("Invalidated layer number\n");
    return Err::m_nERR;
  }
  if(m_uiFrameNum<1)
  {
    printf("Invalidated frame number\n");
    return Err::m_nERR;
  }

  for(UInt i=0;i<m_uiLayerNum;i++)
  {
    if(m_pcLayerParameters[i].m_fTolerableRatio<1.00)
    {
      printf("Invalidated tolerable ratio\n");
      return Err::m_nERR;
    }
    
    if(i>0)
      if(m_pcLayerParameters[i].m_uiFps<m_pcLayerParameters[i-1].m_uiFps||
        m_pcLayerParameters[i].m_uiFps%m_pcLayerParameters[i-1].m_uiFps!=0)//not integer times
      {
        printf("Invalidated fps parameters\n");
        return Err::m_nERR;
      }
    if(m_uiInFps%m_pcLayerParameters[i].m_uiFps!=0)
    {
      printf("Invalidated fps parameters\n");
      return Err::m_nERR;
    }
  }
  return Err::m_nOK;
}