Exemple #1
0
int32_t WelsWriteSpsNal (SWelsSPS* pSps, SBitStringAux* pBitStringAux, int32_t* pSpsIdDelta) {
  WelsWriteSpsSyntax (pSps, pBitStringAux, pSpsIdDelta);

  BsRbspTrailingBits (pBitStringAux);

  BsFlush (pBitStringAux);

  return 0;
}
Exemple #2
0
/*!
 * \brief	write prefix nal
 */
int32_t WelsWriteSVCPrefixNal (SBitStringAux* pBitStringAux, const int32_t kiNalRefIdc,
                               const bool_t kbIdrFlag) {
  if (0 < kiNalRefIdc) {
    BsWriteOneBit (pBitStringAux, false/*bStoreRefBasePicFlag*/);
    BsWriteOneBit (pBitStringAux, false);
    BsRbspTrailingBits (pBitStringAux);
    BsFlush (pBitStringAux);
  }
  return 0;
}
Exemple #3
0
int32_t WelsWriteSubsetSpsSyntax (SSubsetSps* pSubsetSps, SBitStringAux* pBitStringAux , int32_t* pSpsIdDelta) {
  SWelsSPS* pSps = &pSubsetSps->pSps;

  WelsWriteSpsSyntax (pSps, pBitStringAux, pSpsIdDelta);

  if (pSps->uiProfileIdc == PRO_SCALABLE_BASELINE || pSps->uiProfileIdc == PRO_SCALABLE_HIGH) {
    SSpsSvcExt* pSubsetSpsExt = &pSubsetSps->sSpsSvcExt;

    BsWriteOneBit (pBitStringAux, true/*pSubsetSpsExt->bInterLayerDeblockingFilterCtrlPresentFlag*/);
    BsWriteBits (pBitStringAux, 2, pSubsetSpsExt->iExtendedSpatialScalability);
    BsWriteOneBit (pBitStringAux, 0/*pSubsetSpsExt->uiChromaPhaseXPlus1Flag*/);
    BsWriteBits (pBitStringAux, 2, 1/*pSubsetSpsExt->uiChromaPhaseYPlus1*/);
    if (pSubsetSpsExt->iExtendedSpatialScalability == 1) {
      BsWriteOneBit (pBitStringAux, 0/*pSubsetSpsExt->uiSeqRefLayerChromaPhaseXPlus1Flag*/);
      BsWriteBits (pBitStringAux, 2, 1/*pSubsetSpsExt->uiSeqRefLayerChromaPhaseYPlus1*/);
      BsWriteSE (pBitStringAux, 0/*pSubsetSpsExt->sSeqScaledRefLayer.left_offset*/);
      BsWriteSE (pBitStringAux, 0/*pSubsetSpsExt->sSeqScaledRefLayer.top_offset*/);
      BsWriteSE (pBitStringAux, 0/*pSubsetSpsExt->sSeqScaledRefLayer.right_offset*/);
      BsWriteSE (pBitStringAux, 0/*pSubsetSpsExt->sSeqScaledRefLayer.bottom_offset*/);
    }
    BsWriteOneBit (pBitStringAux, pSubsetSpsExt->bSeqTcoeffLevelPredFlag);
    if (pSubsetSpsExt->bSeqTcoeffLevelPredFlag) {
      BsWriteOneBit (pBitStringAux, pSubsetSpsExt->bAdaptiveTcoeffLevelPredFlag);
    }
    BsWriteOneBit (pBitStringAux, pSubsetSpsExt->bSliceHeaderRestrictionFlag);

    BsWriteOneBit (pBitStringAux, false/*pSubsetSps->bSvcVuiParamPresentFlag*/);
  }
  BsWriteOneBit (pBitStringAux, false/*pSubsetSps->bAdditionalExtension2Flag*/);

  BsRbspTrailingBits (pBitStringAux);

  BsFlush (pBitStringAux);

  return 0;
}
Exemple #4
0
/*!
 *************************************************************************************
 * \brief	to write Picture Parameter Set (PPS)
 *
 * \param 	pPps     	pPps
 * \param	pBitStringAux		bitstream writer auxiliary
 *
 * \return	0 - successed
 *	    	1 - failed
 *
 * \note	Call it in case EWelsNalUnitType is PPS.
 *************************************************************************************
 */
int32_t WelsWritePpsSyntax (SWelsPPS* pPps, SBitStringAux* pBitStringAux, SParaSetOffset* sPSOVector) {
  SBitStringAux* pLocalBitStringAux = pBitStringAux;

  bool bUsedSubset    =  sPSOVector->bPpsIdMappingIntoSubsetsps[pPps->iPpsId];
  int32_t iParameterSetType = (bUsedSubset ? PARA_SET_TYPE_SUBSETSPS : PARA_SET_TYPE_AVCSPS);

  BsWriteUE (pLocalBitStringAux, pPps->iPpsId +
             sPSOVector->sParaSetOffsetVariable[PARA_SET_TYPE_PPS].iParaSetIdDelta[pPps->iPpsId]);
  BsWriteUE (pLocalBitStringAux, pPps->iSpsId +
             sPSOVector->sParaSetOffsetVariable[iParameterSetType].iParaSetIdDelta[pPps->iSpsId]);

#if _DEBUG
  //SParaSetOffset use, 110421
  if (sPSOVector->bEnableSpsPpsIdAddition) {
    const int32_t kiTmpSpsIdInBs = pPps->iSpsId +
                                   sPSOVector->sParaSetOffsetVariable[iParameterSetType].iParaSetIdDelta[pPps->iSpsId];
    const int32_t tmp_pps_id_in_bs = pPps->iPpsId +
                                     sPSOVector->sParaSetOffsetVariable[PARA_SET_TYPE_PPS].iParaSetIdDelta[pPps->iPpsId];
    assert (MAX_SPS_COUNT > kiTmpSpsIdInBs);
    assert (MAX_PPS_COUNT > tmp_pps_id_in_bs);
    assert (sPSOVector->sParaSetOffsetVariable[iParameterSetType].bUsedParaSetIdInBs[kiTmpSpsIdInBs]);
  }
#endif

  BsWriteOneBit (pLocalBitStringAux, false/*pPps->entropy_coding_mode_flag*/);
  BsWriteOneBit (pLocalBitStringAux, false/*pPps->bPicOrderPresentFlag*/);

#ifdef DISABLE_FMO_FEATURE
  BsWriteUE (pLocalBitStringAux, 0/*pPps->uiNumSliceGroups - 1*/);
#else
  BsWriteUE (pLocalBitStringAux, pPps->uiNumSliceGroups - 1);
  if (pPps->uiNumSliceGroups > 1) {
    uint32_t i, uiNumBits;

    BsWriteUE (pLocalBitStringAux, pPps->uiSliceGroupMapType);

    switch (pPps->uiSliceGroupMapType) {
    case 0:
      for (i = 0; i < pPps->uiNumSliceGroups; i ++) {
        BsWriteUE (pLocalBitStringAux, pPps->uiRunLength[i] - 1);
      }
      break;
    case 2:
      for (i = 0; i < pPps->uiNumSliceGroups; i ++) {
        BsWriteUE (pLocalBitStringAux, pPps->uiTopLeft[i]);
        BsWriteUE (pLocalBitStringAux, pPps->uiBottomRight[i]);
      }
      break;
    case 3:
    case 4:
    case 5:
      BsWriteOneBit (pLocalBitStringAux, pPps->bSliceGroupChangeDirectionFlag);
      BsWriteUE (pLocalBitStringAux, pPps->uiSliceGroupChangeRate - 1);
      break;
    case 6:
      BsWriteUE (pLocalBitStringAux, pPps->uiPicSizeInMapUnits - 1);
      uiNumBits = 0;///////////////////WELS_CEILLOG2(pPps->uiPicSizeInMapUnits);
      for (i = 0; i < pPps->uiPicSizeInMapUnits; i ++) {
        BsWriteBits (pLocalBitStringAux, uiNumBits, pPps->uiSliceGroupId[i]);
      }
      break;
    default:
      break;
    }
  }
#endif//!DISABLE_FMO_FEATURE

  BsWriteUE (pLocalBitStringAux, 0/*pPps->uiNumRefIdxL0Active - 1*/);
  BsWriteUE (pLocalBitStringAux, 0/*pPps->uiNumRefIdxL1Active - 1*/);


  BsWriteOneBit (pLocalBitStringAux, false/*pPps->bWeightedPredFlag*/);
  BsWriteBits (pLocalBitStringAux, 2, 0/*pPps->uiWeightedBiPredIdc*/);

  BsWriteSE (pLocalBitStringAux, pPps->iPicInitQp - 26);
  BsWriteSE (pLocalBitStringAux, pPps->iPicInitQs - 26);

  BsWriteSE (pLocalBitStringAux, pPps->uiChromaQpIndexOffset);
  BsWriteOneBit (pLocalBitStringAux, pPps->bDeblockingFilterControlPresentFlag);
  BsWriteOneBit (pLocalBitStringAux, false/*pPps->bConstainedIntraPredFlag*/);
  BsWriteOneBit (pLocalBitStringAux, false/*pPps->bRedundantPicCntPresentFlag*/);

  BsRbspTrailingBits (pLocalBitStringAux);

  BsFlush (pLocalBitStringAux);

  return 0;
}