cue.go

package cuei

import (
	"fmt"
)

// Cue a SCTE35 cue.
type Cue struct {
	InfoSection
	Command SpliceCommand
	Descriptors []SpliceDescriptor `json:",omitempty"`
	Packet      PacketData   `json:",omitempty"`
}

// Decode extracts bits for the Cue values.
func (cue *Cue) Decode(bites []byte) bool {
	var bitn Bitn
	bitn.Load(bites)
	if !cue.InfoSection.Decode(&bitn) {
		return false
	}        
		cue.Command.Decoder(cue.InfoSection.SpliceCommandType, &bitn)
		cue.InfoSection.DescriptorLoopLength = bitn.AsUInt64(16)
		cue.dscptrLoop(&bitn)
		return true
	return false
}

// DscptrLoop loops over any splice descriptors
func (cue *Cue) dscptrLoop(bitn *Bitn) {
	var i uint64
	i = 0
	l := cue.InfoSection.DescriptorLoopLength
	for i < l {
		tag := bitn.AsUInt8(8)
		i++
		length := bitn.AsUInt64(8)
		i++
		i += length
        var sdr SpliceDescriptor
        sdr.Decoder(bitn, tag, uint8(length))
        cue.Descriptors = append(cue.Descriptors, sdr)
		}
}

//Show display SCTE-35 data as JSON.
func (cue *Cue) Show() {
	fmt.Println(MkJson(&cue))
}