Method SetOption

codec/encoder/plus/src/welsEncoderExt.cpp:688–1194

* InDataFormat, IDRInterval, SVC Encode Param, Frame Rate, Bitrate,.. ************************************************************************/

* 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) && eOptionId != ENCODER_OPTION_TRACE_LEVEL
      && eOptionId != ENCODER_OPTION_TRACE_CALLBACK && eOptionId != ENCODER_OPTION_TRACE_CALLBACK_CONTEXT) {
    return cmInitExpected;
  }

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

    m_iCspInternal = iColorspace;
    WelsLog (&m_pWelsTrace->m_sLogCtx, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_DATAFORMAT, m_iCspInternal = 0x%x", m_iCspInternal);
  }
  break;
  case ENCODER_OPTION_IDR_INTERVAL: { // IDR Interval
    int32_t iValue = * ((int32_t*)pOption);
    WelsLog (&m_pWelsTrace->m_sLogCtx, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_IDR_INTERVAL iValue = %d", iValue);
    if (iValue <= -1) {
      iValue = 0;
    }
    if (iValue == (int32_t)m_pEncContext->pSvcParam->uiIntraPeriod) {
      return cmResultSuccess;
    }
    m_pEncContext->pSvcParam->uiIntraPeriod = (uint32_t)iValue;
    WelsLog (&m_pWelsTrace->m_sLogCtx, WELS_LOG_INFO,
             "CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_IDR_INTERVAL uiIntraPeriod updated to %d",
             m_pEncContext->pSvcParam->uiIntraPeriod);
  }
  break;
  case ENCODER_OPTION_SVC_ENCODE_PARAM_BASE: { // SVC Encoding Parameter
    SEncParamBase sEncodingParam;
    SWelsSvcCodingParam sConfig;
    int32_t iTargetWidth = 0;
    int32_t iTargetHeight = 0;

    memcpy (&sEncodingParam, pOption, sizeof (SEncParamBase)); // confirmed_safe_unsafe_usage
#ifdef OUTPUT_BIT_STREAM
    if ((sEncodingParam.iPicWidth  != m_pEncContext->pSvcParam->sDependencyLayers[m_pEncContext->pSvcParam->iSpatialLayerNum
         - 1].iActualWidth) ||
        (sEncodingParam.iPicHeight != m_pEncContext->pSvcParam->sDependencyLayers[m_pEncContext->pSvcParam->iSpatialLayerNum -
                                                       1].iActualHeight)) {
      ++m_iSwitchTimes;
      m_bSwitch = true;