h264

type ArithmeticDecoding struct {
	Context      *SliceContext
	Binarization *Binarization
	BinVal       int
}

type Binarization struct {
	SyntaxElement string
	BinarizationType
	MaxBinIdxCtx
	CtxIdxOffset
	UseDecodeBypass int
	// contains filtered or unexported fields
}

type BinarizationType struct {
	PrefixSuffix   bool
	FixedLength    bool
	Unary          bool
	TruncatedUnary bool
	CMax           bool
	// 9.3.2.3
	UEGk      bool
	CMaxValue int
}

type BitReader struct {
	Debug bool
	// contains filtered or unexported fields
}

type CABAC struct {
	PStateIdx int
	ValMPS    int
	Context   *SliceContext
}

type CtxIdxOffset struct {
	// When false, Prefix is the MaxBinIdxCtx
	IsPrefixSuffix bool
	Prefix, Suffix int
}

type H264Reader struct {
	IsStarted    bool
	Stream       io.Reader
	NalUnits     []*BitReader
	VideoStreams []*VideoStream
	DebugFile    *os.File
	*BitReader
}

type MN struct {
	M, N int
}

type MaxBinIdxCtx struct {
	// When false, Prefix is the MaxBinIdxCtx
	IsPrefixSuffix bool
	Prefix, Suffix int
}

type NalUnit struct {
	NumBytes                     int
	ForbiddenZeroBit             int
	RefIdc                       int
	Type                         int
	SvcExtensionFlag             int
	Avc3dExtensionFlag           int
	IdrFlag                      int
	PriorityId                   int
	NoInterLayerPredFlag         int
	DependencyId                 int
	QualityId                    int
	TemporalId                   int
	UseRefBasePicFlag            int
	DiscardableFlag              int
	OutputFlag                   int
	ReservedThree2Bits           int
	HeaderBytes                  int
	NonIdrFlag                   int
	ViewId                       int
	AnchorPicFlag                int
	InterViewFlag                int
	ReservedOneBit               int
	ViewIdx                      int
	DepthFlag                    int
	EmulationPreventionThreeByte byte
	// contains filtered or unexported fields
}

type PPS struct {
	ID, SPSID                         int
	EntropyCodingMode                 int
	NumSliceGroupsMinus1              int
	BottomFieldPicOrderInFramePresent bool
	NumSlicGroupsMinus1               int
	SliceGroupMapType                 int
	RunLengthMinus1                   []int
	TopLeft                           []int
	BottomRight                       []int
	SliceGroupChangeDirection         bool
	SliceGroupChangeRateMinus1        int
	PicSizeInMapUnitsMinus1           int
	SliceGroupId                      []int
	NumRefIdxL0DefaultActiveMinus1    int
	NumRefIdxL1DefaultActiveMinus1    int
	WeightedPred                      bool
	WeightedBipred                    int
	PicInitQpMinus26                  int
	PicInitQsMinus26                  int
	ChromaQpIndexOffset               int
	DeblockingFilterControlPresent    bool
	ConstrainedIntraPred              bool
	RedundantPicCntPresent            bool
	Transform8x8Mode                  int
	PicScalingMatrixPresent           bool
	PicScalingListPresent             []bool
	SecondChromaQpIndexOffset         int
}

type SPS struct {
	// 8 bits
	Profile int
	// 6 bits
	Constraint0, Constraint1 int
	Constraint2, Constraint3 int
	Constraint4, Constraint5 int
	// 2 bit reserved 0 bits
	// 8 bits
	Level int
	// Range 0 - 31 ; 6 bits
	ID                         int
	ChromaFormat               int
	UseSeparateColorPlane      bool
	BitDepthLumaMinus8         int
	BitDepthChromaMinus8       int
	QPrimeYZeroTransformBypass bool
	SeqScalingMatrixPresent    bool
	// Delta is (0-12)-1 ; 4 bits
	SeqScalingList []bool // se
	// Range 0 - 12; 4 bits
	Log2MaxFrameNumMinus4 int
	// Range 0 - 2; 2 bits
	PicOrderCountType int
	// Range 0 - 12; 4 bits
	Log2MaxPicOrderCntLSBMin4 int
	DeltaPicOrderAlwaysZero   bool
	// Range (-2^31)+1 to (2^31)-1 ; 31 bits
	OffsetForNonRefPic int // Value - 1 (se)
	// Range (-2^31)+1 to (2^31)-1 ; 31 bits
	OffsetForTopToBottomField int // Value - 1 (se)
	// Range 0 - 255 ; 8 bits
	NumRefFramesInPicOrderCntCycle int
	// Range (-2^31)+1 to (2^31)-1 ; 31 bits
	OffsetForRefFrameList []int // Value - 1 ([]se)
	// Range 0 - MaxDpbFrames
	MaxNumRefFrames            int
	GapsInFrameNumValueAllowed bool
	// Page 77
	PicWidthInMbsMinus1 int
	// Page 77
	PicHeightInMapUnitsMinus1          int
	FrameMbsOnly                       bool
	MBAdaptiveFrameField               bool
	Direct8x8Inference                 bool
	FrameCropping                      bool
	FrameCropLeftOffset                int
	FrameCropRightOffset               int
	FrameCropTopOffset                 int
	FrameCropBottomOffset              int
	VuiParametersPresent               bool
	VuiParameters                      []int
	AspectRatioInfoPresent             bool
	AspectRatio                        int
	SarWidth                           int
	SarHeight                          int
	OverscanInfoPresent                bool
	OverscanAppropriate                bool
	VideoSignalTypePresent             bool
	VideoFormat                        int
	VideoFullRange                     bool
	ColorDescriptionPresent            bool
	ColorPrimaries                     int
	TransferCharacteristics            int
	MatrixCoefficients                 int
	ChromaLocInfoPresent               bool
	ChromaSampleLocTypeTopField        int
	ChromaSampleLocTypeBottomField     int
	CpbCntMinus1                       int
	BitRateScale                       int
	CpbSizeScale                       int
	BitRateValueMinus1                 []int
	Cbr                                []bool
	InitialCpbRemovalDelayLengthMinus1 int
	CpbRemovalDelayLengthMinus1        int
	CpbSizeValueMinus1                 []int
	DpbOutputDelayLengthMinus1         int
	TimeOffsetLength                   int
	TimingInfoPresent                  bool
	NumUnitsInTick                     int
	TimeScale                          int
	NalHrdParametersPresent            bool
	FixedFrameRate                     bool
	VclHrdParametersPresent            bool
	LowHrdDelay                        bool
	PicStructPresent                   bool
	BitstreamRestriction               bool
	MotionVectorsOverPicBoundaries     bool
	MaxBytesPerPicDenom                int
	MaxBitsPerMbDenom                  int
	Log2MaxMvLengthHorizontal          int
	Log2MaxMvLengthVertical            int
	MaxDecFrameBuffering               int
	MaxNumReorderFrames                int
}

type Slice struct {
	Header *SliceHeader
	Data   *SliceData
}

type SliceContext struct {
	*NalUnit
	*SPS
	*PPS
	*Slice
}

type SliceData struct {
	BitReader                *BitReader
	CabacAlignmentOneBit     int
	MbSkipRun                int
	MbSkipFlag               bool
	MbFieldDecodingFlag      bool
	EndOfSliceFlag           bool
	MbType                   int
	MbTypeName               string
	SliceTypeName            string
	PcmAlignmentZeroBit      int
	PcmSampleLuma            []int
	PcmSampleChroma          []int
	TransformSize8x8Flag     bool
	CodedBlockPattern        int
	MbQpDelta                int
	PrevIntra4x4PredModeFlag []int
	RemIntra4x4PredMode      []int
	PrevIntra8x8PredModeFlag []int
	RemIntra8x8PredMode      []int
	IntraChromaPredMode      int
	RefIdxL0                 []int
	RefIdxL1                 []int
	MvdL0                    [][][]int
	MvdL1                    [][][]int
}

type SliceHeader struct {
	FirstMbInSlice                   int
	SliceType                        int
	PPSID                            int
	ColorPlaneID                     int
	FrameNum                         int
	FieldPic                         bool
	BottomField                      bool
	IDRPicID                         int
	PicOrderCntLsb                   int
	DeltaPicOrderCntBottom           int
	DeltaPicOrderCnt                 []int
	RedundantPicCnt                  int
	DirectSpatialMvPred              bool
	NumRefIdxActiveOverride          bool
	NumRefIdxL0ActiveMinus1          int
	NumRefIdxL1ActiveMinus1          int
	CabacInit                        int
	SliceQpDelta                     int
	SpForSwitch                      bool
	SliceQsDelta                     int
	DisableDeblockingFilter          int
	SliceAlphaC0OffsetDiv2           int
	SliceBetaOffsetDiv2              int
	SliceGroupChangeCycle            int
	RefPicListModificationFlagL0     bool
	ModificationOfPicNums            int
	AbsDiffPicNumMinus1              int
	LongTermPicNum                   int
	RefPicListModificationFlagL1     bool
	LumaLog2WeightDenom              int
	ChromaLog2WeightDenom            int
	ChromaArrayType                  int
	LumaWeightL0Flag                 bool
	LumaWeightL0                     []int
	LumaOffsetL0                     []int
	ChromaWeightL0Flag               bool
	ChromaWeightL0                   [][]int
	ChromaOffsetL0                   [][]int
	LumaWeightL1Flag                 bool
	LumaWeightL1                     []int
	LumaOffsetL1                     []int
	ChromaWeightL1Flag               bool
	ChromaWeightL1                   [][]int
	ChromaOffsetL1                   [][]int
	NoOutputOfPriorPicsFlag          bool
	LongTermReferenceFlag            bool
	AdaptiveRefPicMarkingModeFlag    bool
	MemoryManagementControlOperation int
	DifferenceOfPicNumsMinus1        int
	LongTermFrameIdx                 int
	MaxLongTermFrameIdxPlus1         int
}

type StateTransx struct {
	TransIdxLPS, TransIdxMPS int
}

type VideoStream struct {
	SPS    *SPS
	PPS    *PPS
	Slices []*SliceContext
}