/*!
* \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;
}
/*!
*************************************************************************************
* \brief to set Sequence Parameter Set (SPS)
*
* \param pSps SWelsSPS to be wrote, update iSpsId dependency
* \param pBitStringAux bitstream writer auxiliary
*
* \return 0 - successed
* 1 - failed
*
* \note Call it in case EWelsNalUnitType is SPS.
*************************************************************************************
*/
int32_t WelsWriteSpsSyntax (SWelsSPS* pSps, SBitStringAux* pBitStringAux, int32_t* pSpsIdDelta) {
SBitStringAux* pLocalBitStringAux = pBitStringAux;
assert (pSps != NULL && pBitStringAux != NULL);
BsWriteBits (pLocalBitStringAux, 8, pSps->uiProfileIdc);
BsWriteOneBit (pLocalBitStringAux, pSps->bConstraintSet0Flag); // bConstraintSet0Flag
BsWriteOneBit (pLocalBitStringAux, pSps->bConstraintSet1Flag); // bConstraintSet1Flag
BsWriteOneBit (pLocalBitStringAux, pSps->bConstraintSet2Flag); // bConstraintSet2Flag
BsWriteOneBit (pLocalBitStringAux, 0/*pSps->bConstraintSet3Flag*/); // bConstraintSet3Flag
BsWriteBits (pLocalBitStringAux, 4, 0); // reserved_zero_4bits, equal to 0
BsWriteBits (pLocalBitStringAux, 8, pSps->iLevelIdc); // iLevelIdc
BsWriteUE (pLocalBitStringAux, pSps->uiSpsId + pSpsIdDelta[pSps->uiSpsId]); // seq_parameter_set_id
if (PRO_SCALABLE_BASELINE == pSps->uiProfileIdc || PRO_SCALABLE_HIGH == pSps->uiProfileIdc ||
PRO_HIGH == pSps->uiProfileIdc || PRO_HIGH10 == pSps->uiProfileIdc ||
PRO_HIGH422 == pSps->uiProfileIdc || PRO_HIGH444 == pSps->uiProfileIdc ||
PRO_CAVLC444 == pSps->uiProfileIdc || 44 == pSps->uiProfileIdc) {
BsWriteUE (pLocalBitStringAux, 1); //uiChromaFormatIdc, now should be 1
BsWriteUE (pLocalBitStringAux, 0); //uiBitDepthLuma
BsWriteUE (pLocalBitStringAux, 0); //uiBitDepthChroma
BsWriteOneBit (pLocalBitStringAux, 0); //qpprime_y_zero_transform_bypass_flag
BsWriteOneBit (pLocalBitStringAux, 0); //seq_scaling_matrix_present_flag
}
BsWriteUE (pLocalBitStringAux, pSps->uiLog2MaxFrameNum - 4); // log2_max_frame_num_minus4
BsWriteUE (pLocalBitStringAux, 0/*pSps->uiPocType*/); // pic_order_cnt_type
BsWriteUE (pLocalBitStringAux, pSps->iLog2MaxPocLsb - 4); // log2_max_pic_order_cnt_lsb_minus4
BsWriteUE (pLocalBitStringAux, pSps->iNumRefFrames); // max_num_ref_frames
BsWriteOneBit (pLocalBitStringAux, true/*pSps->bGapsInFrameNumValueAllowedFlag*/); // bGapsInFrameNumValueAllowedFlag
BsWriteUE (pLocalBitStringAux, pSps->iMbWidth - 1); // pic_width_in_mbs_minus1
BsWriteUE (pLocalBitStringAux, pSps->iMbHeight - 1); // pic_height_in_map_units_minus1
BsWriteOneBit (pLocalBitStringAux, true/*pSps->bFrameMbsOnlyFlag*/); // bFrameMbsOnlyFlag
BsWriteOneBit (pLocalBitStringAux, 0/*pSps->bDirect8x8InferenceFlag*/); // direct_8x8_inference_flag
BsWriteOneBit (pLocalBitStringAux, pSps->bFrameCroppingFlag); // bFrameCroppingFlag
if (pSps->bFrameCroppingFlag) {
BsWriteUE (pLocalBitStringAux, pSps->sFrameCrop.iCropLeft); // frame_crop_left_offset
BsWriteUE (pLocalBitStringAux, pSps->sFrameCrop.iCropRight); // frame_crop_right_offset
BsWriteUE (pLocalBitStringAux, pSps->sFrameCrop.iCropTop); // frame_crop_top_offset
BsWriteUE (pLocalBitStringAux, pSps->sFrameCrop.iCropBottom); // frame_crop_bottom_offset
}
BsWriteOneBit (pLocalBitStringAux, 0/*pSps->bVuiParamPresentFlag*/); // vui_parameters_present_flag
return 0;
}
