signal

Documentation

Overview

Package signal contains helpers to exchange the SDP session description between examples.

Index

• func Decode(in string, obj interface{})
• func Encode(obj interface{}) string
• func HTTPSDPServer() chan string
• func MustReadStdin() string
• func RandSeq(n int) string
• type NAL
  • func NewNal(data []byte) *NAL
  • func (h *NAL) ParseHeader()
• type NalUnitType
  • func (n *NalUnitType) String() string

Functions

func Decode

func Decode(in string, obj interface{})

Decode decodes the input from base64 It can optionally unzip the input after decoding

func Encode

func Encode(obj interface{}) string

Encode encodes the input in base64 It can optionally zip the input before encoding

func HTTPSDPServer

func HTTPSDPServer() chan string

HTTPSDPServer starts a HTTP Server that consumes SDPs

func MustReadStdin

func MustReadStdin() string

MustReadStdin blocks until input is received from stdin

func RandSeq

func RandSeq(n int) string

RandSeq generates a random string to serve as dummy data

It returns a deterministic sequence of values each time a program is run. Use rand.Seed() function in your real applications.

Types

type NAL

type NAL struct {
	PictureOrderCount uint32

	// NAL header
	ForbiddenZeroBit bool
	RefIdc           uint8
	UnitType         NalUnitType

	Data []byte // header byte + rbsp
}

func NewNal

func NewNal(data []byte) *NAL

func (*NAL) ParseHeader

func (h *NAL) ParseHeader()

type NalUnitType

type NalUnitType uint8

NalUnitType is the type of a NAL

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

)

Enums for NalUnitTypes

func (*NalUnitType) String

func (n *NalUnitType) String() string