int32_t WelsWriteSpsNal (SWelsSPS* pSps, SBitStringAux* pBitStringAux, int32_t* pSpsIdDelta) {
WelsWriteSpsSyntax (pSps, pBitStringAux, pSpsIdDelta);
BsRbspTrailingBits (pBitStringAux);
BsFlush (pBitStringAux);
return 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;
}
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;
}
/*!
*************************************************************************************
* \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;
}