add header-session

header-session.go

@@ -0,0 +1,47 @@
+package gortsplib
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// HeaderSession is a Session header.
+type HeaderSession struct {
+	Session string
+	Timeout *uint
+}
+
+// ReadHeaderSession parses a Session header.
+func ReadHeaderSession(in string) (*HeaderSession, error) {
+	parts := strings.Split(in, ";")
+	if len(parts) == 0 {
+		return nil, fmt.Errorf("invalid value")
+	}
+
+	hs := &HeaderSession{}
+
+	hs.Session, parts = parts[0], parts[1:]
+
+	for _, part := range parts {
+		keyval := strings.Split(part, "=")
+		if len(keyval) != 2 {
+			return nil, fmt.Errorf("invalid value")
+		}
+
+		key, strValue := keyval[0], keyval[1]
+		if key != "timeout" {
+			return nil, fmt.Errorf("invalid key '%s'", key)
+		}
+
+		iv, err := strconv.ParseUint(strValue, 10, 64)
+		if err != nil {
+			return nil, err
+		}
+		uiv := uint(iv)
+
+		hs.Timeout = &uiv
+	}
+
+	return hs, nil
+}