h264reader

Documentation

Index

• type H264Reader
  • func NewReader(in io.Reader) (*H264Reader, error)
  • func (reader *H264Reader) NextNAL() (*NAL, error)
• type NAL
• type NalUnitType
  • func (n *NalUnitType) String() string

Types

type H264Reader

type H264Reader struct {
	// contains filtered or unexported fields
}

H264Reader reads data from stream and constructs h264 nal units

func NewReader

func NewReader(in io.Reader) (*H264Reader, error)

NewReader creates new H264Reader

func (*H264Reader) NextNAL

func (reader *H264Reader) NextNAL() (*NAL, error)

type NAL

type NAL struct {
	PictureOrderCount uint32

	// NAL header
	ForbiddenZeroBit bool
	RefIdc           uint8
	UnitType         NalUnitType

	Data []byte // header byte + rbsp
}

NAL H.264 Network Abstraction Layer

type NalUnitType

type NalUnitType uint8

const (
	NalUnitTypeUnspecified              NalUnitType = 0  // Unspecified
	NalUnitTypeCodedSliceNonIdr         NalUnitType = 1  // Coded slice of a non-IDR picture
	NalUnitTypeCodedSliceDataPartitionA NalUnitType = 2  // Coded slice data partition A
	NalUnitTypeCodedSliceDataPartitionB NalUnitType = 3  // Coded slice data partition B
	NalUnitTypeCodedSliceDataPartitionC NalUnitType = 4  // Coded slice data partition C
	NalUnitTypeCodedSliceIdr            NalUnitType = 5  // Coded slice of an IDR picture
	NalUnitTypeSEI                      NalUnitType = 6  // Supplemental enhancement information (SEI)
	NalUnitTypeSPS                      NalUnitType = 7  // Sequence parameter set
	NalUnitTypePPS                      NalUnitType = 8  // Picture parameter set
	NalUnitTypeAUD                      NalUnitType = 9  // Access unit delimiter
	NalUnitTypeEndOfSequence            NalUnitType = 10 // End of sequence
	NalUnitTypeEndOfStream              NalUnitType = 11 // End of stream
	NalUnitTypeFiller                   NalUnitType = 12 // Filler data
	NalUnitTypeSpsExt                   NalUnitType = 13 // Sequence parameter set extension
	NalUnitTypeCodedSliceAux            NalUnitType = 19 // Coded slice of an auxiliary coded picture without partitioning

)

func (*NalUnitType) String

func (n *NalUnitType) String() string