headers: merge parsing of key-values

pkg/headers/rtpinfo.go

@@ -34,13 +34,12 @@ func (h *RTPInfo) Read(v base.HeaderValue) error {
 		// remove leading spaces
 		part = strings.TrimLeft(part, " ")
 
-		for _, kv := range strings.Split(part, ";") {
-			tmp := strings.SplitN(kv, "=", 2)
-			if len(tmp) != 2 {
-				return fmt.Errorf("unable to parse key-value (%v)", kv)
-			}
-			k, v := tmp[0], tmp[1]
+		kvs, err := keyValParse(part, ';')
+		if err != nil {
+			return err
+		}
 
+		for k, v := range kvs {
 			switch k {
 			case "url":
 				e.URL = v