Export min and max delay in header extension

Exports the min and max delay attributes.

playoutdelayextension.go

@@ -23,19 +23,19 @@ var errPlayoutDelayInvalidValue = errors.New("invalid playout delay value")
 // |  ID   | len=2 |       MIN delay       |       MAX delay       |
 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 type PlayoutDelayExtension struct {
-	minDelay, maxDelay uint16
+	MinDelay, MaxDelay uint16
 }
 
 // Marshal serializes the members to buffer
 func (p PlayoutDelayExtension) Marshal() ([]byte, error) {
-	if p.minDelay > playoutDelayMaxValue || p.maxDelay > playoutDelayMaxValue {
+	if p.MinDelay > playoutDelayMaxValue || p.MaxDelay > playoutDelayMaxValue {
 		return nil, errPlayoutDelayInvalidValue
 	}
 
 	return []byte{
-		byte(p.minDelay >> 4),
-		byte(p.minDelay<<4) | byte(p.maxDelay>>8),
-		byte(p.maxDelay),
+		byte(p.MinDelay >> 4),
+		byte(p.MinDelay<<4) | byte(p.MaxDelay>>8),
+		byte(p.MaxDelay),
 	}, nil
 }
 
@@ -44,7 +44,7 @@ func (p *PlayoutDelayExtension) Unmarshal(rawData []byte) error {
 	if len(rawData) < playoutDelayExtensionSize {
 		return errTooSmall
 	}
-	p.minDelay = binary.BigEndian.Uint16(rawData[0:2]) >> 4
-	p.maxDelay = binary.BigEndian.Uint16(rawData[1:3]) & 0x0FFF
+	p.MinDelay = binary.BigEndian.Uint16(rawData[0:2]) >> 4
+	p.MaxDelay = binary.BigEndian.Uint16(rawData[1:3]) & 0x0FFF
 	return nil
 }