Add support RTMPS source

pkg/rtmp/producer.go

@@ -1,6 +1,8 @@
 package rtmp
 
 import (
+	"crypto/tls"
+	"errors"
 	"net"
 	"net/url"
 	"strings"
@@ -15,16 +17,38 @@ func Dial(rawURL string) (core.Producer, error) {
 		return nil, err
 	}
 
-	host := u.Host
-	if strings.IndexByte(host, ':') < 0 {
-		host += ":1935"
+	var hostname string // without port
+	if i := strings.IndexByte(u.Host, ':'); i > 0 {
+		hostname = u.Host[:i]
+	} else {
+		hostname = u.Host
+		u.Host += ":1935"
 	}
 
-	conn, err := net.DialTimeout("tcp", host, core.ConnDialTimeout)
+	conn, err := net.DialTimeout("tcp", u.Host, core.ConnDialTimeout)
 	if err != nil {
 		return nil, err
 	}
 
+	if u.Scheme != "rtmp" {
+		var conf *tls.Config
+
+		switch {
+		case u.Scheme == "rtmpx" || net.ParseIP(hostname) != nil:
+			conf = &tls.Config{InsecureSkipVerify: true}
+		case u.Scheme == "rtmps":
+			conf = &tls.Config{ServerName: hostname}
+		default:
+			return nil, errors.New("unsupported scheme: " + u.Scheme)
+		}
+
+		tlsConn := tls.Client(conn, conf)
+		if err = tlsConn.Handshake(); err != nil {
+			return nil, err
+		}
+		conn = tlsConn
+	}
+
 	rd, err := NewReader(u, conn)
 	if err != nil {
 		return nil, err