public override void Read(BitReader bitReader)
{
base.Read(bitReader);
Profile = bitReader.ReadByte();
Constraints = bitReader.ReadByte();
Level = bitReader.ReadByte();
gSPSID = bitReader.DecodeUnsignedExpGolomb();
gLog2MaxFrameNumMinus4 = bitReader.DecodeUnsignedExpGolomb();
gPicOrderCntType = bitReader.DecodeUnsignedExpGolomb();
if (gPicOrderCntType == 0)
{
gMaxPicOrderCntLsbMinus4 = bitReader.DecodeUnsignedExpGolomb();
}
else if (gPicOrderCntType == 1)
{
DeltaPicOrderAlwaysZero = bitReader.GetNextBit();
gOffsetForNonRefPic = bitReader.DecodeSignedExpGolomb();
gOffsetForTopToBottomField = bitReader.DecodeSignedExpGolomb();
gNumRefFramesInPicOrderCntCycle = bitReader.DecodeUnsignedExpGolomb();
gOffsetsForRefFrames = new int[gNumRefFramesInPicOrderCntCycle];
for (int i = 0; i < gNumRefFramesInPicOrderCntCycle; i++)
{
gOffsetsForRefFrames[i] = bitReader.DecodeSignedExpGolomb();
}
}
gNumRefFrames = bitReader.DecodeUnsignedExpGolomb();
GapsInFrameNumValueAllowed = bitReader.GetNextBit();
gPicWidthInMBsMinus1 = bitReader.DecodeUnsignedExpGolomb();
Width = gPicWidthInMBsMinus1 + 1;
gPicHeightInMBsMinus1 = bitReader.DecodeUnsignedExpGolomb();
Height = gPicHeightInMBsMinus1 + 1;
PicSizeInMBs = Height * Width;
FrameMBSOnly = bitReader.GetNextBit();
uint interlaceFactor = (FrameMBSOnly) ? 1U : 2U;
Width *= 16;
Height *= (16 * interlaceFactor);
if (!FrameMBSOnly)
{
MBAdaptiveFrameField = bitReader.GetNextBit();
}
Direct8x8Inference = bitReader.GetNextBit();
FrameCropping = bitReader.GetNextBit();
if (FrameCropping)
{
FrameCropLeftOffset = bitReader.DecodeUnsignedExpGolomb();
FrameCropRightOffset = bitReader.DecodeUnsignedExpGolomb();
FrameCropTopOffset = bitReader.DecodeUnsignedExpGolomb();
FrameCropBottomOffset = bitReader.DecodeUnsignedExpGolomb();
}
VUIParametersPresent = bitReader.GetNextBit();
if (VUIParametersPresent)
{
vuiParams = new VUIParams();
vuiParams.Read(bitReader);
}
}
public override void Read(BitReader bitReader)
{
base.Read(bitReader);
Profile = bitReader.ReadByte();
Constraints = bitReader.ReadByte();
Level = bitReader.ReadByte();
gSPSID = bitReader.DecodeUnsignedExpGolomb();
gLog2MaxFrameNumMinus4 = bitReader.DecodeUnsignedExpGolomb();
gPicOrderCntType = bitReader.DecodeUnsignedExpGolomb();
if (gPicOrderCntType == 0)
gMaxPicOrderCntLsbMinus4 = bitReader.DecodeUnsignedExpGolomb();
else if (gPicOrderCntType == 1)
{
DeltaPicOrderAlwaysZero = bitReader.GetNextBit();
gOffsetForNonRefPic = bitReader.DecodeSignedExpGolomb();
gOffsetForTopToBottomField = bitReader.DecodeSignedExpGolomb();
gNumRefFramesInPicOrderCntCycle = bitReader.DecodeUnsignedExpGolomb();
gOffsetsForRefFrames = new int[gNumRefFramesInPicOrderCntCycle];
for (int i = 0; i < gNumRefFramesInPicOrderCntCycle; i++)
gOffsetsForRefFrames[i] = bitReader.DecodeSignedExpGolomb();
}
gNumRefFrames = bitReader.DecodeUnsignedExpGolomb();
GapsInFrameNumValueAllowed = bitReader.GetNextBit();
gPicWidthInMBsMinus1 = bitReader.DecodeUnsignedExpGolomb();
Width = gPicWidthInMBsMinus1 + 1;
gPicHeightInMBsMinus1 = bitReader.DecodeUnsignedExpGolomb();
Height = gPicHeightInMBsMinus1 + 1;
PicSizeInMBs = Height * Width;
FrameMBSOnly = bitReader.GetNextBit();
uint interlaceFactor = (FrameMBSOnly) ? 1U : 2U;
Width *= 16;
Height *= (16 * interlaceFactor);
if (!FrameMBSOnly)
MBAdaptiveFrameField = bitReader.GetNextBit();
Direct8x8Inference = bitReader.GetNextBit();
FrameCropping = bitReader.GetNextBit();
if (FrameCropping)
{
FrameCropLeftOffset = bitReader.DecodeUnsignedExpGolomb();
FrameCropRightOffset = bitReader.DecodeUnsignedExpGolomb();
FrameCropTopOffset = bitReader.DecodeUnsignedExpGolomb();
FrameCropBottomOffset = bitReader.DecodeUnsignedExpGolomb();
}
VUIParametersPresent = bitReader.GetNextBit();
if (VUIParametersPresent)
{
vuiParams = new VUIParams();
vuiParams.Read(bitReader);
}
}
public override void Read(BitReader bitReader)
{
base.Read(bitReader);
PrimaryPicType = (PictureType)bitReader.GetByteFromNBits(3);
bitReader.DiscardTrailingBits(); // complete the byte
while (MoreRBSPData(bitReader))
bitReader.ReadByte();
}
public override void Read(BitReader bitReader)
{
base.Read(bitReader);
PrimaryPicType = (PictureType)bitReader.GetByteFromNBits(3);
bitReader.DiscardTrailingBits(); // complete the byte
while (MoreRBSPData(bitReader))
{
bitReader.ReadByte();
}
}
private void SEIMessage(BitReader bitReader)
{
byte lastTypeByte;
PayloadType = 0;
while (0xFF == (lastTypeByte = bitReader.ReadByte()))
{
PayloadType += 255;
}
PayloadType += lastTypeByte;
byte lastSizeByte;
PayloadSize = 0;
while (0xFF == (lastSizeByte = bitReader.ReadByte()))
{
PayloadSize += 255;
}
PayloadSize += lastSizeByte;
SEIPayload();
}
// start reading at a byte boundary
public virtual void Read(BitReader bitReader)
{
_positionInStream = bitReader.Position;
Byte firstByte = bitReader.ReadByte();
Byte idc = (Byte)(firstByte >> 5);
if ((idc > 0) != (NALRefIDC > 0)) // if it's not as expected, then throw exception
{
throw new Exception("NALU base class: unexpected Ref IDC");
}
NALUnitType naluType = (NALUnitType)(firstByte & 0x1F);
if (naluType != NALUType)
{
throw new Exception("NALU base class: unexpected NALU type");
}
}
// start reading at a byte boundary
public virtual void Read(BitReader bitReader)
{
_positionInStream = bitReader.Position;
Byte firstByte = bitReader.ReadByte();
Byte idc = (Byte)(firstByte >> 5);
if ((idc > 0) != (NALRefIDC > 0)) // if it's not as expected, then throw exception
throw new Exception("NALU base class: unexpected Ref IDC");
NALUnitType naluType = (NALUnitType)(firstByte & 0x1F);
if (naluType != NALUType)
throw new Exception("NALU base class: unexpected NALU type");
}
private void SEIMessage(BitReader bitReader)
{
byte lastTypeByte;
PayloadType = 0;
while (0xFF == (lastTypeByte = bitReader.ReadByte()))
PayloadType += 255;
PayloadType += lastTypeByte;
byte lastSizeByte;
PayloadSize = 0;
while (0xFF == (lastSizeByte = bitReader.ReadByte()))
PayloadSize += 255;
PayloadSize += lastSizeByte;
SEIPayload();
}
