public H264OutputStream(Nalu nalu, SequenceParameterSet sps,PictureParameterSet pps)
{
this.Nalu = nalu;
this.sps = sps;
this.pps = pps;
if (pps.EntropyCodingModeFlag)
{
//TODO : CABAC
// entropyOutputStream = new CABAC();
}
else
{
entropyOutputStream = new Cavlc(this);
}
}
public SliceHeader(Slice slice, Nalu nalu, SequenceParameterSet sps, PictureParameterSet pps)
{
this.slice = slice;
// BEGIN: parameters from Nalu, Picture Par Set and Sequence Par Set
picParameterSetId = pps.PicParameterSetId;
log2MaxFrameNumMinus4 = sps.Log2MaxFrameNumMinus4;
frameMbsOnlyFlag = sps.FrameMbsOnlyFlag;
picOrderCntType = sps.PicOrderCntType;
log2MaxPicOrderCntLsbMinus4 = sps.Log2MaxPicOrderCntLsbMinus4;
picInitQpMinus26 = pps.PicInitQpMinus26;
nalRefIdc = nalu.NalRefIdc;
nalUnitType = nalu.NalUnitType;
// END: parameters from Nalu, Picture Par Set and Sequence Par Set
sliceType = slice.Picture.TypeOfSlice;
firstMbInSlice = slice.Picture.CurrentMbNr;
noOutputOfPriorPicsFlag = false;
longTermReferenceFlag = false;
sliceQpDelta = (slice.Qp - 26 - picInitQpMinus26);
}
private readonly bool weightedPredFlag; // u(1)
#endregion Fields
#region Constructors
public PictureParameterSet(SequenceParameterSet sps)
{
seqParameterSetId = sps.SeqParameterSetId;
picParameterSetId = 0; // TODO hard coded to zero
entropyCodingModeFlag = false; // TODO hard coded to Cavlc
picOrderPresentFlag = false; // TODO hard coded to false
numSliceGroupsMinus1 = 0; // TODO hard coded to zero
// Following set the parameter for different slice group types
if (numSliceGroupsMinus1 > 0)
{
}
// End FMO stuff
if (sps.FrameMbsOnlyFlag)
{
numRefIdxL0ActiveMinus1 = sps.NumRefFrames - 1;
numRefIdxL1ActiveMinus1 = sps.NumRefFrames - 1;
}
else
{
numRefIdxL0ActiveMinus1 = 2 * sps.NumRefFrames - 1;
numRefIdxL1ActiveMinus1 = 2 * sps.NumRefFrames - 1;
}
weightedPredFlag = false; // TODO hard coded to false
weightedBipredIdc = 0; // TODO hard coded to zero
// hard coded to zero, QP lives in the slice header
picInitQpMinus26 = 0;
picInitQsMinus26 = 0;
chromaQpIndexOffset = 0; // TODO hard coded to zero
deblockingFilterControlPresentFlag = false; // TODO hrd cd to false
constrainedIntraPredFlag = false; // TODO hard coded to false
redundantPicCntPresentFlag = false; // TODO hard coded to false
}
