| // Copyright (C) 1999-2003 Open Source Telecom Corporation. |
| // |
| // 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. |
| // |
| // This program 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 General Public License for more details. |
| // |
| // You should have received a copy of the GNU General Public License |
| // along with this program; if not, write to the Free Software |
| // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| // |
| // As a special exception, you may use this file as part of a free software |
| // library without restriction. Specifically, if other files instantiate |
| // templates or use macros or inline functions from this file, or you compile |
| // this file and link it with other files to produce an executable, this |
| // file does not by itself cause the resulting executable to be covered by |
| // the GNU General Public License. This exception does not however |
| // invalidate any other reasons why the executable file might be covered by |
| // the GNU General Public License. |
| // |
| // This exception applies only to the code released under the name GNU |
| // ccRTP. If you copy code from other releases into a copy of GNU |
| // ccRTP, as the General Public License permits, the exception does |
| // not apply to the code that you add in this way. To avoid misleading |
| // anyone as to the status of such modified files, you must delete |
| // this exception notice from them. |
| // |
| // If you write modifications of your own for GNU ccRTP, it is your choice |
| // whether to permit this exception to apply to your modifications. |
| // If you do not wish that, delete this exception notice. |
| // |
| |
| /** |
| * @file ext.h |
| * @short ccRTP Stack extensions. |
| **/ |
| |
| #ifndef CCXX_RTP_EXT_H |
| #define CCXX_RTP_EXT_H |
| |
| #ifndef CCXX_SOCKET_H_ |
| #include <cc++/socket.h> |
| #endif |
| |
| #include <ccrtp/ioqueue.h> |
| #include <ccrtp/channel.h> |
| |
| #ifdef CCXX_NAMESPACES |
| namespace ost { |
| #endif |
| |
| /** |
| * @defgroup rtpext ccRTP Extension classes |
| * @{ |
| **/ |
| |
| /** |
| * @class RTPDuplex rtp.h cc++/rtp.h |
| * |
| * A peer associated RTP socket pair for physically connected peer |
| * hosts. This has no RTCP and assumes the receiver is connected |
| * to a known transmitter, hence no "foreign" packets will arrive. |
| * |
| * @author David Sugar |
| * @short RTP peer host over UDP. |
| */ |
| class __EXPORT RTPDuplex : public RTPDataQueue, |
| protected UDPReceive, public UDPTransmit |
| { |
| public: |
| /** |
| * @param bind network address this socket is to be bound |
| * @param local transport port this socket is to be bound |
| * @param remote peer transpor port |
| */ |
| RTPDuplex(const InetAddress &bind, tpport_t local, tpport_t remote); |
| |
| /** |
| * |
| */ |
| virtual |
| ~RTPDuplex(); |
| |
| /** |
| * @param host peer address |
| * @param port peer port. If not specified, the same as the |
| * local is used |
| * @return socket status |
| */ |
| UDPTransmit::Error |
| connect(const InetHostAddress &host, tpport_t port = 0); |
| |
| protected: |
| |
| /** |
| * @param timeout how much time to wait for new data |
| * @return if there is some new data |
| */ |
| bool |
| isPendingData(microtimeout_t timeout) |
| { return isPendingReceive(timeout); } |
| |
| /** |
| * @param buffer pointer to data to be written |
| * @param len how many octets to write |
| * @return number of octets written |
| */ |
| size_t |
| sendData(const unsigned char *const buffer, size_t len) |
| { return UDPTransmit::transmit((const char *)buffer, len); } |
| |
| /** |
| * @param buffer where to store the retrieved data |
| * @param len how many octets to read |
| * @param na Source network address. |
| * @param tp Source transport port. |
| * @return number of octets read |
| */ |
| size_t |
| recvData(unsigned char *buffer, size_t len, |
| InetHostAddress& na, tpport_t& tp) |
| { /* na = UDPReceive::getPeer(&tp); FIX name ambiguity */ |
| return UDPReceive::receive(buffer, len); } |
| |
| /** |
| * @param - peer host network address. |
| * @param - peer host RTP data transport port. |
| **/ |
| inline void |
| setDataPeer(const InetAddress&, tpport_t) |
| { } |
| |
| /** |
| * @param - peer host network address. |
| * @param - peer host RTCP transport port. |
| **/ |
| inline void |
| setControlPeer(const InetAddress&, tpport_t) |
| { } |
| |
| inline size_t |
| getNextDataPacketSize() const |
| { |
| // the const cast is a trick only needed for cc++2 <= 1.0.10 |
| size_t len; ccioctl(const_cast<RTPDuplex*>(this)->UDPReceive::getReceiver(),FIONREAD,len); return len; |
| } |
| |
| /** |
| * @return the associated peer information |
| */ |
| SyncSource &getPeer(); |
| |
| private: |
| tpport_t dataBasePort; |
| }; |
| |
| /*@}*/ // rtpext |
| |
| #ifdef CCXX_NAMESPACES |
| } |
| #endif |
| |
| #endif //CCXX_RTP_EXT_H |
| |
| /** EMACS ** |
| * Local variables: |
| * mode: c++ |
| * c-basic-offset: 8 |
| * End: |
| */ |