scte35

Documentation

Overview

Package scte35 implements parts of SCTE-35 according to SCTE-214-1 from 2022.

Index

• Constants
• func CreateEmsgAhead(segStart, segEnd, timescale uint64, perMinute int) (*mp4.EmsgBox, error)
• func CreateSpliceInsertPayload(p SpliceInsertParams) []byte
• func IsValidSCTE35Interval(adsPerMinute int) error
• type SpliceInsertParams

Constants

const (
	SchemeIDURI = "urn:scte:scte35:2013:bin"
)

Functions

func CreateEmsgAhead

func CreateEmsgAhead(segStart, segEnd, timescale uint64, perMinute int) (*mp4.EmsgBox, error)

CreateEmsgAhead generates an emsg SCTE-35 box if the the segment covers the time 7s before the ad start. Depending on perMinute parameter, the splice inserts are as follows:: 1: 10s after full minute (20s duration) 2: 10s and 40s after full minute (10 duration) 3: 10s, 36s, 46s after full minute (10s duration)

func CreateSpliceInsertPayload

func CreateSpliceInsertPayload(p SpliceInsertParams) []byte

CreateSpliceInsertPayload creates a SCTE-35 splice_info_section including CRC.

func IsValidSCTE35Interval

func IsValidSCTE35Interval(adsPerMinute int) error

Returns if requested adsPerMinute value is valid (1, 2, or 3)

Types

type SpliceInsertParams

type SpliceInsertParams struct {
	PtsTime                    uint64
	Duration                   uint64
	SpliceEventID              uint32
	Tier                       uint16
	UniqueProgramID            uint16
	AvailNum                   uint8
	AvailsExpected             uint8
	SpliceEventCancelIndicator bool
	OutOfNetworkIndicator      bool
	SpliceImmediateFlag        bool
	AutoReturn                 bool
}