Include segmentationUpidFormat when encoding to json/xml

.github/workflows/check.yml

@@ -17,29 +17,16 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v3
 
-      - name: Install Go
+      - name: Setup Go
         uses: actions/setup-go@v4
         with:
-          go-version: "1.20"
           check-latest: true
 
-      - name: Go Format
-        run: gofmt -s -w . && git diff --exit-code
-
-      - name: Go Tidy
-        run: go mod tidy && git diff --exit-code
-
-      - name: Go Mod
-        run: go mod download
-
-      - name: Go Mod Verify
-        run: go mod verify
-
-      - name: Go Vet
-        run: go vet ./...
-
-      - name: Go Build
-        run: go build -o /dev/null ./...
+      - name: Run linters
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: latest
+          args: -v --timeout=5m
 
-      - name: Go Test
-        run: go test -v -count=1 -race -shuffle=on  ./...
+      - name: Run Test
+        run: go test --race ./...

.golangci.yaml

@@ -0,0 +1,46 @@
+---
+run:
+  tests: false
+  timeout: 5m
+
+linters-settings:
+  errcheck:
+    check-type-assertions: true
+
+linters:
+  enable:
+    - bodyclose
+    - containedctx
+    - contextcheck
+    - copyloopvar
+    - decorder
+    - errname
+    - errorlint
+    - exhaustive
+    - exportloopref
+    - gci
+    - gochecknoinits
+    - gocritic
+    - godox
+    - gofmt
+    - goimports
+    - goprintffuncname
+    - gosec
+    - intrange
+    - misspell
+    - noctx
+    - nosprintfhostport
+    - revive
+    - sqlclosecheck
+    - stylecheck
+    - testpackage
+    - unparam
+    - wastedassign
+    - whitespace
+
+issues:
+  include:
+    - EXC0012
+    - EXC0013
+    - EXC0014
+    - EXC0015

README.md

@@ -112,12 +112,13 @@ avail_descriptor() {
 }
 
 XML:
-<SpliceInfoSection xmlns="http://www.scte.org/schemas/35" sapType="3" ptsAdjustment="0" protocolVersion="0" tier="4095">
+<SpliceInfoSection xmlns="http://www.scte.org/schemas/35" sapType="3" tier="4095">
+  <EncryptedPacket xmlns="http://www.scte.org/schemas/35" encryptionAlgorithm="0" cwIndex="0"></EncryptedPacket>
   <TimeSignal xmlns="http://www.scte.org/schemas/35">
     <SpliceTime xmlns="http://www.scte.org/schemas/35" ptsTime="3550479013"></SpliceTime>
   </TimeSignal>
-  <SegmentationDescriptor xmlns="http://www.scte.org/schemas/35" segmentationEventId="39965" segmentationEventCancelIndicator="false" segmentationDuration="10800000" segmentationTypeId="49" segmentNum="1" segmentsExpected="1">
-    <SegmentationUpid xmlns="http://www.scte.org/schemas/35" segmentationUpidType="12" formatIdentifier="1145656131" format="base-64">WU1XRjA0NTIwMDBI</SegmentationUpid>
+  <SegmentationDescriptor xmlns="http://www.scte.org/schemas/35" segmentationEventId="39965" segmentationDuration="10800000" segmentationTypeId="49" segmentNum="1" segmentsExpected="1">
+    <SegmentationUpid xmlns="http://www.scte.org/schemas/35" segmentationUpidType="12" segmentationUpidFormat="base-64" formatIdentifier="1145656131">WU1XRjA0NTIwMDBI</SegmentationUpid>
   </SegmentationDescriptor>
 </SpliceInfoSection>
 

cmd/decode.go

@@ -33,13 +33,13 @@ func decodeCommand() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "decode",
 		Short: "Decode a splice_info_section from binary",
-		Args: func(cmd *cobra.Command, args []string) error {
+		Args: func(_ *cobra.Command, args []string) error {
 			if len(args) != 1 {
 				return fmt.Errorf("requires a binary signal")
 			}
 			return nil
 		},
-		Run: func(cmd *cobra.Command, args []string) {
+		Run: func(_ *cobra.Command, args []string) {
 			bin := args[0]
 			var sis *scte35.SpliceInfoSection
 			var err error

cmd/encode.go

@@ -33,13 +33,13 @@ func encodeCommand() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "encode < filename or encode {\"protocolVersion\"... ",
 		Short: "Encode a splice_info_section to binary being provided from stdin or as a parameter",
-		Args: func(cmd *cobra.Command, args []string) error {
+		Args: func(_ *cobra.Command, args []string) error {
 			if len(args) > 1 {
 				return fmt.Errorf("invalid number of parameter provided")
 			}
 			return nil
 		},
-		Run: func(cmd *cobra.Command, args []string) {
+		Run: func(_ *cobra.Command, args []string) {
 			var err error
 			var input string
 			var sis *scte35.SpliceInfoSection

go.mod

@@ -1,6 +1,8 @@
 module github.com/Comcast/scte35-go
 
-go 1.18
+go 1.22.0
+
+toolchain go1.22.5
 
 require (
 	github.com/bamiaux/iobit v0.0.0-20170418073505-498159a04883

pkg/scte35/audio_descriptor.go

@@ -55,7 +55,7 @@ func (sd *AudioDescriptor) decode(b []byte) error {
 	audioCount := int(r.Uint32(4))
 	r.Skip(4) // reserved
 	sd.AudioChannels = make([]AudioChannel, audioCount)
-	for i := 0; i < audioCount; i++ {
+	for i := range audioCount {
 		ac := AudioChannel{}
 		ac.ComponentTag = r.Uint32(8)
 		ac.ISOCode = r.String(3)

pkg/scte35/delivery_restrictions.go

@@ -49,6 +49,7 @@ func (dr *DeliveryRestrictions) deviceRestrictionsName() string {
 	case DeviceRestrictionsNone:
 		return "None"
 	default:
+		// nolint:goconst
 		return "Unknown"
 	}
 }

pkg/scte35/encrypted_packet.go

@@ -31,8 +31,8 @@ const (
 // EncryptedPacket contains the encryption details if this payload has been
 // encrypted.
 type EncryptedPacket struct {
-	EncryptionAlgorithm uint32 `xml:"encryptionAlgorithm,attr,omitempty" json:"encryptionAlgorithm,omitempty"`
-	CWIndex             uint32 `xml:"cwIndex,attr,omitempty" json:"cwIndex,omitempty"`
+	EncryptionAlgorithm uint32 `xml:"encryptionAlgorithm,attr" json:"encryptionAlgorithm"`
+	CWIndex             uint32 `xml:"cwIndex,attr" json:"cwIndex"`
 }
 
 // encryptionAlgorithmName returns the user-friendly encryption algorithm name

pkg/scte35/scte35_test.go

@@ -362,8 +362,9 @@ func TestDecodeBase64(t *testing.T) {
 						},
 						SegmentationUPIDs: []scte35.SegmentationUPID{
 							{
-								Type:  8,
-								Value: "791755781",
+								Type:   8,
+								Format: scte35.SegmentationUPIDFormatText,
+								Value:  "791755781",
 							},
 						},
 						SegmentationTypeID:  53,
@@ -378,8 +379,9 @@ func TestDecodeBase64(t *testing.T) {
 						},
 						SegmentationUPIDs: []scte35.SegmentationUPID{
 							{
-								Type:  8,
-								Value: "791755998",
+								Type:   8,
+								Format: scte35.SegmentationUPIDFormatText,
+								Value:  "791755998",
 							},
 						},
 						SegmentationTypeID:  35,
@@ -423,16 +425,19 @@ func TestDecodeBase64(t *testing.T) {
 					&scte35.SegmentationDescriptor{
 						SegmentationUPIDs: []scte35.SegmentationUPID{
 							{
-								Type:  scte35.SegmentationUPIDTypeEIDR,
-								Value: "10.5239/8BE5-E3F6-0000-0000-0000",
+								Type:   scte35.SegmentationUPIDTypeEIDR,
+								Format: scte35.SegmentationUPIDFormatText,
+								Value:  "10.5239/8BE5-E3F6-0000-0000-0000",
 							},
 							{
-								Type:  scte35.SegmentationUPIDTypeEIDR,
-								Value: "10.5239/8BE5-E3F6-0000-0000-0000",
+								Type:   scte35.SegmentationUPIDTypeEIDR,
+								Format: scte35.SegmentationUPIDFormatText,
+								Value:  "10.5239/8BE5-E3F6-0000-0000-0000",
 							},
 							{
-								Type:  scte35.SegmentationUPIDTypeADI,
-								Value: "SIGNAL:Ly9EMGxKR0hFZUtpMHdCUVZnRUFnZz1",
+								Type:   scte35.SegmentationUPIDTypeADI,
+								Format: scte35.SegmentationUPIDFormatText,
+								Value:  "SIGNAL:Ly9EMGxKR0hFZUtpMHdCUVZnRUFnZz1",
 							},
 						},
 						SegmentationEventID: 2,
@@ -454,6 +459,7 @@ func TestDecodeBase64(t *testing.T) {
 						SegmentationUPIDs: []scte35.SegmentationUPID{
 							{
 								Type:             scte35.SegmentationUPIDTypeMPU,
+								Format:           scte35.SegmentationUPIDFormatBase64,
 								FormatIdentifier: uint32ptr(1145656131),
 								Value:            "WU1XRjA0NTIwMDBI",
 							},
@@ -486,8 +492,9 @@ func TestDecodeBase64(t *testing.T) {
 					&scte35.SegmentationDescriptor{
 						SegmentationUPIDs: []scte35.SegmentationUPID{
 							{
-								Type:  scte35.SegmentationUPIDTypeURI,
-								Value: "urn:nbcuni.com:brc:499866434",
+								Type:   scte35.SegmentationUPIDTypeURI,
+								Format: scte35.SegmentationUPIDFormatText,
+								Value:  "urn:nbcuni.com:brc:499866434",
 							},
 						},
 						SegmentationDuration: uint64ptr(1347087),
@@ -546,7 +553,7 @@ func TestDecodeBase64(t *testing.T) {
 							DeviceRestrictions:     3,
 						},
 						SegmentationUPIDs: []scte35.SegmentationUPID{
-							{Type: scte35.SegmentationUPIDTypeTI, Value: "1044285552"},
+							{Type: scte35.SegmentationUPIDTypeTI, Format: scte35.SegmentationUPIDFormatText, Value: "1044285552"},
 						},
 					},
 					&scte35.SegmentationDescriptor{
@@ -559,7 +566,7 @@ func TestDecodeBase64(t *testing.T) {
 							DeviceRestrictions:     3,
 						},
 						SegmentationUPIDs: []scte35.SegmentationUPID{
-							{Type: scte35.SegmentationUPIDTypeTI, Value: "1044285552"},
+							{Type: scte35.SegmentationUPIDTypeTI, Format: scte35.SegmentationUPIDFormatText, Value: "1044285552"},
 						},
 					},
 					&scte35.SegmentationDescriptor{
@@ -572,7 +579,7 @@ func TestDecodeBase64(t *testing.T) {
 							DeviceRestrictions:     3,
 						},
 						SegmentationUPIDs: []scte35.SegmentationUPID{
-							{Type: scte35.SegmentationUPIDTypeTI, Value: "1044285622"},
+							{Type: scte35.SegmentationUPIDTypeTI, Format: scte35.SegmentationUPIDFormatText, Value: "1044285622"},
 						},
 					},
 					&scte35.SegmentationDescriptor{
@@ -586,7 +593,7 @@ func TestDecodeBase64(t *testing.T) {
 							DeviceRestrictions:     3,
 						},
 						SegmentationUPIDs: []scte35.SegmentationUPID{
-							{Type: scte35.SegmentationUPIDTypeTI, Value: "1044285622"},
+							{Type: scte35.SegmentationUPIDTypeTI, Format: scte35.SegmentationUPIDFormatText, Value: "1044285622"},
 						},
 					},
 					&scte35.SegmentationDescriptor{
@@ -602,13 +609,13 @@ func TestDecodeBase64(t *testing.T) {
 							DeviceRestrictions:     3,
 						},
 						SegmentationUPIDs: []scte35.SegmentationUPID{
-							{Type: scte35.SegmentationUPIDTypeEIDR, Value: "10.5239/F9B9-7B34-0000-0000-0000"},
-							{Type: scte35.SegmentationUPIDTypeADS, Value: "type=LA&dur=60000&tierü0"},
-							{Type: uint32(199)},
-							{Type: uint32(0)},
-							{Type: uint32(0)},
-							{Type: uint32(0)},
-							{Type: uint32(255)},
+							{Type: scte35.SegmentationUPIDTypeEIDR, Format: scte35.SegmentationUPIDFormatText, Value: "10.5239/F9B9-7B34-0000-0000-0000"},
+							{Type: scte35.SegmentationUPIDTypeADS, Format: scte35.SegmentationUPIDFormatText, Value: "type=LA&dur=60000&tierü0"},
+							{Type: uint32(199), Format: scte35.SegmentationUPIDFormatText},
+							{Type: uint32(0), Format: scte35.SegmentationUPIDFormatText},
+							{Type: uint32(0), Format: scte35.SegmentationUPIDFormatText},
+							{Type: uint32(0), Format: scte35.SegmentationUPIDFormatText},
+							{Type: uint32(255), Format: scte35.SegmentationUPIDFormatText},
 						},
 					},
 				},

pkg/scte35/segmentation_descriptor.go

@@ -354,7 +354,7 @@ func (sd *SegmentationDescriptor) decode(b []byte) error {
 		if !programSegmentationFlag {
 			componentCount := int(r.Uint32(8))
 			sd.Components = make([]SegmentationDescriptorComponent, componentCount)
-			for i := 0; i < componentCount; i++ {
+			for i := range componentCount {
 				c := SegmentationDescriptorComponent{}
 				c.Tag = r.Uint32(8)
 				r.Skip(7) // reserved

pkg/scte35/segmentation_upid.go

@@ -69,6 +69,16 @@ const (
 	SegmentationUPIDTypeUUID = 0x10
 	// SegmentationUPIDTypeSCR is the segmentation_upid_type for SCR.
 	SegmentationUPIDTypeSCR = 0x11
+
+	// SegmentationUPIDFormatText is the text segmentation upid value format.
+	SegmentationUPIDFormatText = "text"
+	// SegmentationUPIDFormatHex is the hex segmentation upid value format.
+	SegmentationUPIDFormatHex = "hex"
+	// SegmentationUPIDFormatBase64 is the hex segmentation upid value format.
+	SegmentationUPIDFormatBase64 = "base-64"
+	// SegmentationUPIDFormatPrivatePrefix is the private segmentation upid value
+	// format.
+	SegmentationUPIDFormatPrivatePrefix = "private:"
 )
 
 // NewSegmentationUPID construct a new SegmentationUPID
@@ -79,47 +89,51 @@ func NewSegmentationUPID(upidType uint32, buf []byte) SegmentationUPID {
 	// EIDR - custom
 	case SegmentationUPIDTypeEIDR:
 		return SegmentationUPID{
-			Type:  upidType,
-			Value: canonicalEIDR(r.LeftBytes()),
+			Type:   upidType,
+			Format: SegmentationUPIDFormatText,
+			Value:  canonicalEIDR(r.LeftBytes()),
 		}
 	// ISAN - base64
 	case SegmentationUPIDTypeISAN, SegmentationUPIDTypeISANDeprecated:
 		return SegmentationUPID{
-			Type:  upidType,
-			Value: base64.StdEncoding.EncodeToString(r.LeftBytes()),
+			Type:   upidType,
+			Format: SegmentationUPIDFormatBase64,
+			Value:  base64.StdEncoding.EncodeToString(r.LeftBytes()),
 		}
 	// MPU - custom
 	case SegmentationUPIDTypeMPU:
 		fi := r.Uint32(32)
 		return SegmentationUPID{
 			Type:             upidType,
+			Format:           SegmentationUPIDFormatBase64,
 			FormatIdentifier: &fi,
 			Value:            base64.StdEncoding.EncodeToString(r.LeftBytes()),
 		}
 	// TI - unsigned int
 	case SegmentationUPIDTypeTI:
 		return SegmentationUPID{
-			Type:  upidType,
-			Value: strconv.FormatUint(r.Uint64(r.LeftBits()), 10),
+			Format: SegmentationUPIDFormatText,
+			Type:   upidType,
+			Value:  strconv.FormatUint(r.Uint64(r.LeftBits()), 10),
 		}
 	// everything else - plain text
 	default:
 		// decode troublesome Latin1 characters to their UTF8 equivalents
 		b, _ := charmap.ISO8859_1.NewDecoder().Bytes(r.LeftBytes())
 		return SegmentationUPID{
-			Type:  upidType,
-			Value: string(b),
+			Type:   upidType,
+			Format: SegmentationUPIDFormatText,
+			Value:  string(b),
 		}
 	}
 }
 
 // SegmentationUPID is used to express a UPID in an XML document.
 type SegmentationUPID struct {
 	Type             uint32  `xml:"segmentationUpidType,attr" json:"segmentationUpidType"`
+	Format           string  `xml:"segmentationUpidFormat,attr,omitempty" json:"segmentationUpidFormat,omitempty"`
 	FormatIdentifier *uint32 `xml:"formatIdentifier,attr,omitempty" json:"formatIdentifier,omitempty"`
 	Value            string  `xml:",chardata" json:"value"`
-	// Deprecated: no longer used and will be removed in a future release
-	Format string `xml:"-" json:"-"`
 }
 
 // Name returns the name for the segmentation_upid_type.

pkg/scte35/splice_descriptor.go

@@ -52,7 +52,6 @@ func NewSpliceDescriptor(identifier uint32, tag uint32) SpliceDescriptor {
 	// as a last resort, fall back to private_descriptor. This is not strictly
 	// compliant but allows us to deal with a wider array of quirky signals.
 	return &PrivateDescriptor{Identifier: identifier}
-
 }
 
 // SpliceDescriptor is a prototype for adding new fields to the