update docs

client.go

@@ -178,19 +178,7 @@ type ClientOnPacketRTCPCtx struct {
 // Client is a RTSP client.
 type Client struct {
 	//
-	// callbacks
+	// RTSP parameters (all optional)
-	//
-	// called before every request.
-	OnRequest func(*base.Request)
-	// called after every response.
-	OnResponse func(*base.Response)
-	// called when a RTP packet arrives.
-	OnPacketRTP func(*ClientOnPacketRTPCtx)
-	// called when a RTCP packet arrives.
-	OnPacketRTCP func(*ClientOnPacketRTCPCtx)
-
-	//
-	// RTSP parameters
 	//
 	// timeout of read operations.
 	// It defaults to 10 seconds.
@@ -231,7 +219,7 @@ type Client struct {
 	UserAgent string
 
 	//
-	// system functions
+	// system functions (all optional)
 	//
 	// function used to initialize the TCP client.
 	// It defaults to (&net.Dialer{}).DialContext.
@@ -240,6 +228,18 @@ type Client struct {
 	// It defaults to net.ListenPacket.
 	ListenPacket func(network, address string) (net.PacketConn, error)
 
+	//
+	// callbacks (all optional)
+	//
+	// called before every request.
+	OnRequest func(*base.Request)
+	// called after every response.
+	OnResponse func(*base.Response)
+	// called when a RTP packet arrives.
+	OnPacketRTP func(*ClientOnPacketRTPCtx)
+	// called when a RTCP packet arrives.
+	OnPacketRTCP func(*ClientOnPacketRTCPCtx)
+
 	//
 	// private
 	//
@@ -302,16 +302,6 @@ type Client struct {
 
 // Start initializes the connection to a server.
 func (c *Client) Start(scheme string, host string) error {
-	// callbacks
-	if c.OnPacketRTP == nil {
-		c.OnPacketRTP = func(ctx *ClientOnPacketRTPCtx) {
-		}
-	}
-	if c.OnPacketRTCP == nil {
-		c.OnPacketRTCP = func(ctx *ClientOnPacketRTCPCtx) {
-		}
-	}
-
 	// RTSP parameters
 	if c.ReadTimeout == 0 {
 		c.ReadTimeout = 10 * time.Second
@@ -340,6 +330,16 @@ func (c *Client) Start(scheme string, host string) error {
 		c.ListenPacket = net.ListenPacket
 	}
 
+	// callbacks
+	if c.OnPacketRTP == nil {
+		c.OnPacketRTP = func(ctx *ClientOnPacketRTPCtx) {
+		}
+	}
+	if c.OnPacketRTCP == nil {
+		c.OnPacketRTCP = func(ctx *ClientOnPacketRTCPCtx) {
+		}
+	}
+
 	// private
 	if c.udpSenderReportPeriod == 0 {
 		c.udpSenderReportPeriod = 10 * time.Second

server.go

@@ -66,25 +66,11 @@ type streamMulticastIPReq struct {
 // Server is a RTSP server.
 type Server struct {
 	//
-	// handler
+	// RTSP parameters (all optional except RTSPAddress)
 	//
-	// an handler to handle server events.
-	Handler ServerHandler
-
-	//
-	// RTSP parameters
-	//
-	// timeout of read operations.
-	// It defaults to 10 seconds
-	ReadTimeout time.Duration
-	// timeout of write operations.
-	// It defaults to 10 seconds
-	WriteTimeout time.Duration
 	// the RTSP address of the server, to accept connections and send and receive
 	// packets with the TCP transport.
 	RTSPAddress string
-	// a TLS configuration to accept TLS (RTSPS) connections.
-	TLSConfig *tls.Config
 	// a port to send and receive RTP packets with the UDP transport.
 	// If UDPRTPAddress and UDPRTCPAddress are filled, the server can support the UDP transport.
 	UDPRTPAddress string
@@ -103,6 +89,14 @@ type Server struct {
 	// If MulticastIPRange, MulticastRTPPort, MulticastRTCPPort are filled, the server
 	// can support the UDP-multicast transport.
 	MulticastRTCPPort int
+	// timeout of read operations.
+	// It defaults to 10 seconds
+	ReadTimeout time.Duration
+	// timeout of write operations.
+	// It defaults to 10 seconds
+	WriteTimeout time.Duration
+	// a TLS configuration to accept TLS (RTSPS) connections.
+	TLSConfig *tls.Config
 	// read buffer count.
 	// If greater than 1, allows to pass buffers to routines different than the one
 	// that is reading frames.
@@ -116,7 +110,13 @@ type Server struct {
 	WriteBufferCount int
 
 	//
-	// system functions
+	// handler (optional)
+	//
+	// an handler to handle server events.
+	Handler ServerHandler
+
+	//
+	// system functions (all optional)
 	//
 	// function used to initialize the TCP listener.
 	// It defaults to net.Listen.