private void ParseScalingList(H264Bitstream r, int sizeOfScalingList)
{
int num1 = 8;
int num2 = 8;
for (int index = 0; index < sizeOfScalingList; ++index)
{
if (0 != num2)
{
int num3 = H264BitstreamExtensions.ReadSe(r);
num2 = num1 + num3 + 256 & (int)byte.MaxValue;
bool flag = index == 0 && 0 == num2;
}
num1 = num2 == 0 ? num1 : num2;
}
}
private void ReadScalingList(H264Bitstream r, int sizeOfScalingList)
{
int num1 = 8;
int num2 = 8;
for (int index = 0; index < sizeOfScalingList; ++index)
{
if (num2 != 0)
{
int num3 = H264BitstreamExtensions.ReadSe(r);
num2 = (num1 + num3 + 256) % 256;
bool flag = index == 0 && num2 == 0;
}
num1 = num2 == 0 ? num1 : num2;
}
}
private void ReadHrdParameters(H264Bitstream r)
{
uint num = H264BitstreamExtensions.ReadUe(r);
r.ReadBits(4);
r.ReadBits(4);
for (int index = 0; (long)index <= (long)num; ++index)
{
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
r.ReadBits(1);
}
r.ReadBits(5);
this._cpbRemovalDelayLengthMinus1 = new uint?(r.ReadBits(5));
this._dpbOutputDelayLengthMinus1 = new uint?(r.ReadBits(5));
this._timeOffsetLength = new uint?(r.ReadBits(5));
}
public void ReadSei(H264Bitstream r, ICollection <byte> buffer)
{
uint num = H264BitstreamExtensions.ReadFfSum(r);
uint length = H264BitstreamExtensions.ReadFfSum(r);
if ((int)num != 1)
{
return;
}
if (this._slicePicParameterSetId.HasValue)
{
this.ReadPicTiming(r, length);
}
else
{
if (EnumerableExtensions.SequencesAreEquivalent <byte>((IEnumerable <byte>)buffer, (IEnumerable <byte>) this._timingBytes))
{
return;
}
this._timingBytes = (ICollection <byte>)Enumerable.ToArray <byte>((IEnumerable <byte>)buffer);
}
}
public void ReadSliceHeader(H264Bitstream r, bool IdrPicFlag)
{
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
this._slicePicParameterSetId = new uint?(H264BitstreamExtensions.ReadUe(r));
uint?nullable = this._separateColourPlaneFlag;
if (((int)nullable.GetValueOrDefault() != 1 ? 0 : (nullable.HasValue ? 1 : 0)) != 0)
{
r.ReadBits(2);
}
H264Bitstream h264Bitstream1 = r;
nullable = this._log2MaxFrameNumMinus4;
int count1 = (nullable.HasValue ? (int)nullable.GetValueOrDefault() : 0) + 4;
h264Bitstream1.ReadBits(count1);
uint num1 = 0;
nullable = this._frameMbsOnlyFlag;
if (((int)nullable.GetValueOrDefault() != 0 ? 0 : (nullable.HasValue ? 1 : 0)) != 0)
{
num1 = r.ReadBits(1);
if (0 != (int)num1)
{
r.ReadBits(1);
}
}
this._fieldPicFlag = new bool?(0 != (int)num1);
if (!IdrPicFlag)
{
return;
}
H264BitstreamExtensions.ReadUe(r);
nullable = this._picOrderCntType;
if (((int)nullable.GetValueOrDefault() != 0 ? 0 : (nullable.HasValue ? 1 : 0)) != 0)
{
H264Bitstream h264Bitstream2 = r;
nullable = this._log2MaxFrameNumMinus4;
int count2 = (nullable.HasValue ? (int)nullable.GetValueOrDefault() : 0) + 4;
h264Bitstream2.ReadBits(count2);
nullable = this._bottomFieldPicOrderInFramePresentFlag;
if (((int)nullable.GetValueOrDefault() != 0 ? 1 : (!nullable.HasValue ? 1 : 0)) != 0 && 0 == (int)num1)
{
H264BitstreamExtensions.ReadSe(r);
}
}
nullable = this._picOrderCntType;
int num2;
if (((int)nullable.GetValueOrDefault() != 1 ? 0 : (nullable.HasValue ? 1 : 0)) != 0)
{
nullable = this._deltaPicOrderAlwaysZeroFlag;
num2 = ((int)nullable.GetValueOrDefault() != 0 ? 0 : (nullable.HasValue ? 1 : 0)) == 0 ? 1 : 0;
}
else
{
num2 = 1;
}
if (num2 == 0)
{
H264BitstreamExtensions.ReadSe(r);
nullable = this._bottomFieldPicOrderInFramePresentFlag;
if (((int)nullable.GetValueOrDefault() != 0 ? 1 : (!nullable.HasValue ? 1 : 0)) != 0 && 0 == (int)num1)
{
H264BitstreamExtensions.ReadSe(r);
}
}
nullable = this._redundantPicCntPresentFlag;
if (((int)nullable.GetValueOrDefault() != 0 ? 1 : (!nullable.HasValue ? 1 : 0)) != 0)
{
H264BitstreamExtensions.ReadUe(r);
}
}
private void ReadPicTiming(H264Bitstream r, uint length)
{
if (this._nalHrdParametersPresentFlag.HasValue && this._nalHrdParametersPresentFlag.Value || this._vclHrdParametersPresentFlag.HasValue && this._vclHrdParametersPresentFlag.Value)
{
if (!this._cpbRemovalDelayLengthMinus1.HasValue)
{
return;
}
r.ReadBits((int)this._cpbRemovalDelayLengthMinus1.Value + 1);
if (!this._dpbOutputDelayLengthMinus1.HasValue)
{
return;
}
r.ReadBits((int)this._dpbOutputDelayLengthMinus1.Value + 1);
}
if (!this._picStructPresentFlag.HasValue || !this._picStructPresentFlag.Value)
{
return;
}
this._picStruct = new uint?(r.ReadBits(4));
int?numClockTs = this.GetNumClockTs();
if (!numClockTs.HasValue)
{
return;
}
int num1 = numClockTs.Value;
for (int index = 0; index < num1; ++index)
{
if (0 != (int)r.ReadBits(1))
{
r.ReadBits(2);
r.ReadBits(1);
r.ReadBits(5);
uint num2 = r.ReadBits(1);
r.ReadBits(1);
r.ReadBits(1);
r.ReadBits(8);
uint num3;
uint num4;
uint num5;
if (0 != (int)num2)
{
num3 = r.ReadBits(6);
num4 = r.ReadBits(6);
num5 = r.ReadBits(5);
}
else if (0 != (int)r.ReadBits(1))
{
num3 = r.ReadBits(6);
if (0 != (int)r.ReadBits(1))
{
num4 = r.ReadBits(6);
if (0 != (int)r.ReadBits(1))
{
num5 = r.ReadBits(5);
}
}
}
uint?nullable = this._timeOffsetLength;
uint num6 = nullable.HasValue ? nullable.GetValueOrDefault() : 24U;
if (num6 > 0U)
{
H264BitstreamExtensions.ReadSignedBits(r, (int)num6);
}
}
}
}
private void ReadVuiParameters(H264Bitstream r)
{
if (0 != (int)r.ReadBits(1) && (int)byte.MaxValue == (int)r.ReadBits(8))
{
r.ReadBits(16);
r.ReadBits(16);
}
if (0 != (int)r.ReadBits(1))
{
r.ReadBits(1);
}
if (0 != (int)r.ReadBits(1))
{
r.ReadBits(3);
r.ReadBits(1);
if (0 != (int)r.ReadBits(1))
{
r.ReadBits(8);
r.ReadBits(8);
r.ReadBits(8);
}
}
if (0 != (int)r.ReadBits(1))
{
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
}
if (0 != (int)r.ReadBits(1))
{
this._numUnitsInTick = new uint?(r.ReadBits(32));
this._timeScale = new uint?(r.ReadBits(32));
this._fixedFrameRateFlag = new bool?(0 != (int)r.ReadBits(1));
}
uint num1 = r.ReadBits(1);
this._nalHrdParametersPresentFlag = new bool?(0 != (int)num1);
if (0 != (int)num1)
{
this.ReadHrdParameters(r);
}
uint num2 = r.ReadBits(1);
this._vclHrdParametersPresentFlag = new bool?(0 != (int)num2);
if (0 != (int)num2)
{
this.ReadHrdParameters(r);
}
if ((int)num1 != 0 || 0 != (int)num2)
{
r.ReadBits(1);
}
this._picStructPresentFlag = new bool?(0 != (int)r.ReadBits(1));
if (0 == (int)r.ReadBits(1))
{
return;
}
r.ReadBits(1);
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
}
public void ReadPps(H264Bitstream r)
{
this._slicePicParameterSetId = new uint?();
r.ReadBits(1);
r.ReadBits(2);
r.ReadBits(5);
this._picParameterSetId = new uint?(H264BitstreamExtensions.ReadUe(r));
this._ppsSeqParameterSetId = new uint?(H264BitstreamExtensions.ReadUe(r));
r.ReadBits(1);
this._bottomFieldPicOrderInFramePresentFlag = new uint?(r.ReadBits(1));
uint num1 = H264BitstreamExtensions.ReadUe(r);
if (num1 > 0U)
{
uint num2 = H264BitstreamExtensions.ReadUe(r);
if (0 == (int)num2)
{
for (int index = 0; (long)index <= (long)num1; ++index)
{
H264BitstreamExtensions.ReadUe(r);
}
}
else if (2 == (int)num2)
{
for (int index = 0; (long)index < (long)num1; ++index)
{
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
}
}
else if (3 == (int)num2 || 4 == (int)num2 || 5 == (int)num2)
{
r.ReadBits(1);
H264BitstreamExtensions.ReadUe(r);
}
else if (6 == (int)num2)
{
int bitSize = H264Reader.GetBitSize(num1);
uint num3 = H264BitstreamExtensions.ReadUe(r);
for (int index = 0; (long)index <= (long)num3; ++index)
{
r.ReadBits(bitSize);
}
}
}
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
r.ReadBits(1);
r.ReadBits(2);
H264BitstreamExtensions.ReadSe(r);
H264BitstreamExtensions.ReadSe(r);
H264BitstreamExtensions.ReadSe(r);
r.ReadBits(1);
r.ReadBits(1);
this._redundantPicCntPresentFlag = new uint?(r.ReadBits(1));
if (!this.more_rbsp_data(r))
{
return;
}
uint num4 = r.ReadBits(1);
if (0 != (int)r.ReadBits(1))
{
int num2 = 0;
while (true)
{
long num3 = (long)num2;
long num5 = 6;
uint?nullable = this._chromaFormatIdc;
long num6 = (((int)nullable.GetValueOrDefault() != 3 ? 1 : (!nullable.HasValue ? 1 : 0)) != 0 ? 2L : 6L) * (long)num4;
long num7 = num5 + num6;
if (num3 < num7)
{
if (0 != (int)r.ReadBits(1))
{
if (num2 < 6)
{
this.ReadScalingList(r, 16);
}
else
{
this.ReadScalingList(r, 64);
}
}
++num2;
}
else
{
break;
}
}
}
H264BitstreamExtensions.ReadSe(r);
}
public void ReadSps(H264Bitstream r)
{
this._ppsSeqParameterSetId = new uint?();
r.ReadBits(1);
r.ReadBits(2);
r.ReadBits(5);
uint profile_idc = r.ReadBits(8);
uint constraint_sets = r.ReadBits(8);
uint num1 = r.ReadBits(8);
this._seqParameterSetId = new uint?(H264BitstreamExtensions.ReadUe(r));
if (Array.BinarySearch <uint>(H264Reader.ProfileIdcHasChromaFormat, profile_idc) >= 0)
{
uint num2 = H264BitstreamExtensions.ReadUe(r);
this._chromaFormatIdc = new uint?(num2);
if (3 == (int)num2)
{
this._separateColourPlaneFlag = new uint?(r.ReadBits(1));
}
H264BitstreamExtensions.ReadUe(r);
H264BitstreamExtensions.ReadUe(r);
r.ReadBits(1);
if (0 != (int)r.ReadBits(1))
{
for (int index = 0; index < (3 != (int)num2 ? 8 : 12); ++index)
{
if (0 != (int)r.ReadBits(1))
{
this.ParseScalingList(r, index < 6 ? 16 : 64);
}
}
}
}
this._log2MaxFrameNumMinus4 = new uint?(H264BitstreamExtensions.ReadUe(r));
uint num3 = H264BitstreamExtensions.ReadUe(r);
this._picOrderCntType = new uint?(num3);
if (0 == (int)num3)
{
H264BitstreamExtensions.ReadUe(r);
}
else if (1 == (int)num3)
{
this._deltaPicOrderAlwaysZeroFlag = new uint?(r.ReadBits(1));
H264BitstreamExtensions.ReadSe(r);
H264BitstreamExtensions.ReadSe(r);
uint num2 = H264BitstreamExtensions.ReadUe(r);
for (int index = 0; (long)index < (long)num2; ++index)
{
H264BitstreamExtensions.ReadSe(r);
}
}
H264BitstreamExtensions.ReadUe(r);
r.ReadBits(1);
uint num4 = H264BitstreamExtensions.ReadUe(r);
uint num5 = H264BitstreamExtensions.ReadUe(r);
uint num6 = r.ReadBits(1);
this._frameMbsOnlyFlag = new uint?(num6);
if (0 == (int)num6)
{
r.ReadBits(1);
}
r.ReadBits(1);
uint num7 = r.ReadBits(1);
uint num8 = (uint)(((int)num4 + 1) * 16);
uint num9 = (uint)((2 - (int)num6) * ((int)num5 + 1) * 16);
if (0 != (int)num7)
{
uint num2 = H264BitstreamExtensions.ReadUe(r);
uint num10 = H264BitstreamExtensions.ReadUe(r);
uint num11 = H264BitstreamExtensions.ReadUe(r);
uint num12 = H264BitstreamExtensions.ReadUe(r);
num8 = (uint)((int)num8 - (int)num2 * 2 - (int)num10 * 2);
num9 = (uint)((int)num9 - (int)num11 * 2 - (int)num12 * 2);
}
if (0 != (int)r.ReadBits(1))
{
this.ReadVuiParameters(r);
}
this.Height = new int?((int)num9);
this.Width = new int?((int)num8);
this.Name = string.Format("H.264 \"{0}\" profile, level {1} {2}x{3}", (object)H264Reader.ProfileName(profile_idc, constraint_sets), (object)((double)num1 / 10.0), (object)num8, (object)num9);
}