package org.red5.server.net.rtsp;
/*
* RED5 Open Source Flash Server - http://www.osflash.org/red5
*
* Copyright (c) 2006-2008 by respective authors (see below). All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any later
* version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this library; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* Copyright (C) 2005 - Matteo Merli - matteo.merli@gmail.com *
* *
***************************************************************************/
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Parse the RTSP Transport header field. Reference Grammar:
*
* <pre>
* Transport = "Transport" ":"
* 1\#transport-spec
* transport-spec = transport-protocol/profile[/lower-transport]
* *parameter
* transport-protocol = "RTP"
* profile = "AVP"
* lower-transport = "TCP" | "UDP"
* parameter = ( "unicast" | "multicast" )
* | ";" "destination" [ "=" address ]
* | ";" "interleaved" "=" channel [ "-" channel ]
* | ";" "append"
* | ";" "ttl" "=" ttl
* | ";" "layers" "=" 1*DIGIT
* | ";" "port" "=" port [ "-" port ]
* | ";" "client_port" "=" port [ "-" port ]
* | ";" "server_port" "=" port [ "-" port ]
* | ";" "ssrc" "=" ssrc
* | ";" "mode" = <"> 1\#mode <">
* ttl = 1*3(DIGIT)
* port = 1*5(DIGIT)
* ssrc = 8*8(HEX)
* channel = 1*3(DIGIT)
* address = host
* mode = <"> *Method <"> | Method
*
*
* Example:
* Transport: RTP/AVP;multicast;ttl=127;mode="PLAY",
* RTP/AVP;unicast;client_port=3456-3457;mode="PLAY"
* </pre>
*
* @author Matteo Merli (matteo.merli@gmail.com)
*/
public class RTSPTransport {
private static Logger log = LoggerFactory.getLogger(RTSPTransport.class);
public enum TransportProtocol {
None, RTP, RDT, RAW
}
public enum Profile {
None, AVP
}
public enum LowerTransport {
None, TCP, UDP
}
public enum DeliveryType {
None, unicast, multicast
}
TransportProtocol transportProtocol;
Profile profile;
LowerTransport lowerTransport;
DeliveryType deliveryType;
String destination;
String interleaved;
int layers;
boolean append;
int ttl;
int[] port = new int[2];
int[] client_port = new int[2];
int[] server_port = new int[2];
String ssrc;
String mode;
String source;
/**
* Constructor. Creates a RTSPTransport object from a transport header
* string.
*/
public RTSPTransport(String transport) {
transportProtocol = TransportProtocol.None;
profile = Profile.None;
lowerTransport = LowerTransport.None;
deliveryType = DeliveryType.None;
destination = null;
interleaved = null;
layers = 0;
append = false;
ttl = 0;
port[0] = 0;
port[1] = 0;
client_port[0] = 0;
client_port[1] = 0;
server_port[0] = 0;
server_port[1] = 0;
ssrc = null;
mode = null;
source = null;
parseTransport(transport);
if (transport.compareToIgnoreCase(this.toString()) != 0) {
log.warn("Transport header incorrectly parsed.");
}
}
private void parseTransport(String transport) {
for (String tok : transport.split(";")) {
// First check for the transport protocol
if (tok.startsWith("RTP") || tok.startsWith("RDT")) {
String[] tpl = tok.split("/");
transportProtocol = TransportProtocol.valueOf(tpl[0]);
if (tpl.length > 1)
profile = Profile.valueOf(tpl[1]);
if (tpl.length > 2)
lowerTransport = LowerTransport.valueOf(tpl[2]);
continue;
}
if (tok.compareToIgnoreCase("unicast") == 0)
deliveryType = DeliveryType.unicast;
else if (tok.compareToIgnoreCase("multicast") == 0)
deliveryType = DeliveryType.multicast;
else if (tok.startsWith("destination"))
setDestination(_getStrValue(tok));
else if (tok.startsWith("interleaved"))
setInterleaved(_getStrValue(tok));
else if (tok.startsWith("append"))
setAppend(true);
else if (tok.startsWith("layers"))
setLayers(Integer.valueOf(_getStrValue(tok)));
else if (tok.startsWith("ttl"))
setTTL(Integer.valueOf(_getStrValue(tok)));
else if (tok.startsWith("port"))
setPort(_getPairValue(tok));
else if (tok.startsWith("client_port"))
setClientPort(_getPairValue(tok));
else if (tok.startsWith("server_port"))
setServerPort(_getPairValue(tok));
else if (tok.startsWith("ssrc"))
setSSRC(_getStrValue(tok));
else if (tok.startsWith("mode"))
setMode(_getStrValue(tok));
else if (tok.startsWith("source"))
setSource(_getStrValue(tok));
}
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(transportProtocol);
if (profile != Profile.None) {
sb.append("/").append(profile);
if (lowerTransport != LowerTransport.None)
sb.append("/").append(lowerTransport);
}
if (deliveryType != DeliveryType.None)
sb.append(";").append(deliveryType);
if (destination != null)
sb.append(";destination=").append(destination);
if (interleaved != null)
sb.append(";interleaved=").append(interleaved);
if (append)
sb.append(";append");
if (layers > 0)
sb.append(";layers=").append(layers);
if (ttl > 0)
sb.append(";ttl=").append(ttl);
if (port[0] > 0)
sb.append(";port=").append(port[0]).append("-").append(port[1]);
if (client_port[0] > 0)
sb.append(";client_port=").append(client_port[0]).append("-")
.append(client_port[1]);
if (server_port[0] > 0)
sb.append(";server_port=").append(server_port[0]).append("-")
.append(server_port[1]);
if (ssrc != null)
sb.append(";ssrc=").append(ssrc);
if (source != null)
sb.append(";source=").append(source);
if (mode != null)
sb.append(";mode=").append(mode);
return sb.toString();
}
/**
* @return Returns the append.
*/
public boolean isAppend() {
return append;
}
/**
* @param append
* The append to set.
*/
public void setAppend(boolean append) {
this.append = append;
}
/**
* @return Returns the client_port.
*/
public int[] getClientPort() {
return client_port;
}
/**
* @param client_port
* The client_port to set.
*/
public void setClientPort(int[] client_port) {
this.client_port = client_port;
}
/**
* @return Returns the deliveryType.
*/
public DeliveryType getDeliveryType() {
return deliveryType;
}
/**
* @param deliveryType
* The deliveryType to set.
*/
public void setDeliveryType(DeliveryType deliveryType) {
this.deliveryType = deliveryType;
}
/**
* @return Returns the destination.
*/
public String getDestination() {
return destination;
}
/**
* @param destination
* The destination to set.
*/
public void setDestination(String destination) {
this.destination = destination;
}
/**
* @return Returns the interleaved.
*/
public String getInterleaved() {
return interleaved;
}
/**
* @param interleaved
* The interleaved to set.
*/
public void setInterleaved(String interleaved) {
this.interleaved = interleaved;
}
/**
* @return Returns the layers.
*/
public int getLayers() {
return layers;
}
/**
* @param layers
* The layers to set.
*/
public void setLayers(int layers) {
this.layers = layers;
}
/**
* @return Returns the lowerTransport.
*/
public LowerTransport getLowerTransport() {
return lowerTransport;
}
/**
* @param lowerTransport
* The lowerTransport to set.
*/
public void setLowerTransport(LowerTransport lowerTransport) {
this.lowerTransport = lowerTransport;
}
/**
* @return Returns the mode.
*/
public String getMode() {
return mode;
}
/**
* @param mode
* The mode to set.
*/
public void setMode(String mode) {
this.mode = mode;
}
/**
* @return Returns the port.
*/
public int[] getPort() {
return port;
}
/**
* @param port
* The port to set.
*/
public void setPort(int[] port) {
this.port = port;
}
/**
* @return Returns the profile.
*/
public Profile getProfile() {
return profile;
}
/**
* @param profile
* The profile to set.
*/
public void setProfile(Profile profile) {
this.profile = profile;
}
/**
* @return Returns the server_port.
*/
public int[] getServerPort() {
return server_port;
}
/**
* @param server_port
* The server_port to set.
*/
public void setServerPort(int[] server_port) {
this.server_port = server_port;
}
/**
* @return Returns the ssrc.
*/
public String getSSRC() {
return ssrc;
}
/**
* @param ssrc
* The ssrc to set.
*/
public void setSSRC(String ssrc) {
this.ssrc = ssrc;
}
/**
* @param ssrc
* The ssrc to set.
*/
public void setSSRC(long ssrc) {
this.ssrc = Long.toHexString(ssrc & 0xFFFFFFFFL).toUpperCase();
}
/**
* @return Returns the transportProtocol.
*/
public TransportProtocol getTransportProtocol() {
return transportProtocol;
}
/**
* @param transportProtocol
* The transportProtocol to set.
*/
public void setTransportProtocol(TransportProtocol transportProtocol) {
this.transportProtocol = transportProtocol;
}
/**
* @return Returns the ttl.
*/
public int getTTL() {
return ttl;
}
/**
* @param ttl
* The ttl to set.
*/
public void setTTL(int ttl) {
this.ttl = ttl;
}
public void setSource(String source) {
this.source = source;
}
public String getSource() {
return source;
}
/**
* Get the value part in a string like:
*
* <pre>
* key = value
* </pre>
*
* @param str
* the content string
* @return a String containing only the value
*/
private static String _getStrValue(String str) {
String[] list = str.split("=");
if (list.length != 2)
return null;
return list[1];
}
/**
* Get the value part in a string like:
*
* <pre>
* key = 6344 - 6345
* </pre>
*
* @param str
* the content string
* @return a int[2] containing only the value
*/
private static int[] _getPairValue(String str) {
int[] pair = { 0, 0 };
String[] list = str.split("=");
if (list.length != 2)
return pair;
try {
pair[0] = Integer.parseInt(list[1].split("-")[0]);
pair[1] = Integer.parseInt(list[1].split("-")[1]);
// log.debug("Client ports: " + 1);
// Integers.parse();
} catch (Exception e) {
return pair;
}
return pair;
}
}