300 lines
8.5 KiB
C++
Executable File
300 lines
8.5 KiB
C++
Executable File
/*
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* ast_h323.h
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*
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* OpenH323 Channel Driver for ASTERISK PBX.
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* By Jeremy McNamara
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* For The NuFone Network
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*
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* This code has been derived from code created by
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* Michael Manousos and Mark Spencer
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*
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* This file is part of the chan_h323 driver for Asterisk
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*
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* chan_h323 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* chan_h323 is distributed WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Version Info: $Id$
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*/
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#ifndef AST_H323_H
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#define AST_H323_H
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/** These need to be redefined here because the C++
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side of this driver is blind to the asterisk headers */
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/*! G.723.1 compression */
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#define AST_FORMAT_G723_1 (1 << 0)
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/*! GSM compression */
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#define AST_FORMAT_GSM (1 << 1)
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/*! Raw mu-law data (G.711) */
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#define AST_FORMAT_ULAW (1 << 2)
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/*! Raw A-law data (G.711) */
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#define AST_FORMAT_ALAW (1 << 3)
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/*! MPEG-2 layer 3 */
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#define AST_FORMAT_MP3 (1 << 4)
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/*! ADPCM (whose?) */
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#define AST_FORMAT_ADPCM (1 << 5)
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/*! Raw 16-bit Signed Linear (8000 Hz) PCM */
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#define AST_FORMAT_SLINEAR (1 << 6)
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/*! LPC10, 180 samples/frame */
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#define AST_FORMAT_LPC10 (1 << 7)
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/*! G.729A audio */
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#define AST_FORMAT_G729A (1 << 8)
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/*! SpeeX Free Compression */
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#define AST_FORMAT_SPEEX (1 << 9)
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/*! ILBC Free Codec */
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#define AST_FORMAT_ILBC (1 << 10)
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/**This class describes the G.723.1 codec capability.
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*/
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class H323_G7231Capability : public H323AudioCapability
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{
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PCLASSINFO(H323_G7231Capability, H323AudioCapability);
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public:
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H323_G7231Capability(
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BOOL annexA = TRUE /// Enable Annex A silence insertion descriptors
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);
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Comparison Compare(const PObject & obj) const;
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PObject * Clone() const;
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virtual H323Codec * CreateCodec(
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H323Codec::Direction direction /// Direction in which this instance runs
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) const;
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unsigned GetSubType() const;
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PString GetFormatName() const;
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BOOL OnSendingPDU(
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H245_AudioCapability & pdu, /// PDU to set information on
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unsigned packetSize /// Packet size to use in capability
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) const;
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BOOL OnReceivedPDU(
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const H245_AudioCapability & pdu, /// PDU to get information from
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unsigned & packetSize /// Packet size to use in capability
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);
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protected:
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BOOL annexA;
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};
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/**This class describes the (fake) G729 codec capability.
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*/
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class AST_G729Capability : public H323AudioCapability
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{
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PCLASSINFO(AST_G729Capability, H323AudioCapability);
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public:
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/**@name Construction */
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//@{
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/**Create a new G.729 capability.
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*/
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AST_G729Capability();
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//@}
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/**@name Overrides from class PObject */
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//@{
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/**Create a copy of the object.
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*/
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virtual PObject * Clone() const;
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//@}
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/**@name Operations */
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//@{
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/**Create the codec instance, allocating resources as required.
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*/
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virtual H323Codec * CreateCodec(
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H323Codec::Direction direction /// Direction in which this instance runs
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) const;
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//@}
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/**@name Identification functions */
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//@{
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/**Get the sub-type of the capability. This is a code dependent on the
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main type of the capability.
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This returns one of the four possible combinations of mode and speed
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using the enum values of the protocol ASN H245_AudioCapability class.
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*/
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virtual unsigned GetSubType() const;
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/**Get the name of the media data format this class represents.
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*/
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virtual PString GetFormatName() const;
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//@}
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};
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/**This class describes the VoiceAge G729A codec capability.
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*/
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class AST_G729ACapability : public H323AudioCapability
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{
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PCLASSINFO(AST_G729ACapability, H323AudioCapability);
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public:
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/**@name Construction */
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//@{
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/**Create a new G.729A capability.
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*/
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AST_G729ACapability();
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//@}
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/**@name Overrides from class PObject */
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//@{
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/**Create a copy of the object.
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*/
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virtual PObject * Clone() const;
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//@}
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/**@name Operations */
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//@{
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/**Create the codec instance, allocating resources as required.
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*/
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virtual H323Codec * CreateCodec(
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H323Codec::Direction direction /// Direction in which this instance runs
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) const;
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//@}
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/**@name Identification functions */
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//@{
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/**Get the sub-type of the capability. This is a code dependent on the
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main type of the capability.
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This returns one of the four possible combinations of mode and speed
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using the enum values of the protocol ASN H245_AudioCapability class.
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*/
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virtual unsigned GetSubType() const;
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/**Get the name of the media data format this class represents.
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*/
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virtual PString GetFormatName() const;
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//@}
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};
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class MyH323EndPoint : public H323EndPoint {
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PCLASSINFO(MyH323EndPoint, H323EndPoint);
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public:
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int MakeCall(const PString &, PString &, unsigned int *, unsigned int, char *, char *s);
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BOOL ClearCall(const PString &);
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void OnClosedLogicalChannel(H323Connection &, const H323Channel &);
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void OnConnectionEstablished(H323Connection &, const PString &);
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void OnConnectionCleared(H323Connection &, const PString &);
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H323Connection * CreateConnection(unsigned, void *);
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void SendUserTone(const PString &, char);
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H323Capabilities GetCapabilities(void);
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BOOL OnConnectionForwarded(H323Connection &, const PString &, const H323SignalPDU &);
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BOOL ForwardConnection(H323Connection &, const PString &, const H323SignalPDU &);
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PStringArray SupportedPrefixes;
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void SetEndpointTypeInfo( H225_EndpointType & info ) const;
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void SetGateway(void);
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};
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class MyH323Connection : public H323Connection {
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PCLASSINFO(MyH323Connection, H323Connection);
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public:
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MyH323Connection(MyH323EndPoint &, unsigned, unsigned);
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~MyH323Connection();
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H323Channel * CreateRealTimeLogicalChannel(const H323Capability &,
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H323Channel::Directions,
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unsigned,
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const H245_H2250LogicalChannelParameters *);
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H323Connection::AnswerCallResponse OnAnswerCall(const PString &, const H323SignalPDU &, H323SignalPDU &);
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void OnReceivedReleaseComplete(const H323SignalPDU &);
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BOOL OnAlerting(const H323SignalPDU &, const PString &);
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BOOL OnSendReleaseComplete(H323SignalPDU &);
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BOOL OnReceivedSignalSetup(const H323SignalPDU &);
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BOOL OnReceivedFacility(const H323SignalPDU &);
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BOOL OnSendSignalSetup(H323SignalPDU &);
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BOOL OnStartLogicalChannel(H323Channel &);
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BOOL OnClosingLogicalChannel(H323Channel &);
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void SendUserInputTone(char, unsigned);
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void OnUserInputTone(char, unsigned, unsigned, unsigned);
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void OnUserInputString(const PString &value);
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PString sourceAliases;
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PString destAliases;
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PString sourceE164;
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PString destE164;
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PIPSocket::Address externalIpAddress;
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WORD externalPort;
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WORD sessionId;
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BOOL bridging;
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};
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class MyH323_ExternalRTPChannel : public H323_ExternalRTPChannel {
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PCLASSINFO(MyH323_ExternalRTPChannel, H323_ExternalRTPChannel);
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public:
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MyH323_ExternalRTPChannel(
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MyH323Connection & connection,
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const H323Capability & capability,
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Directions direction,
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unsigned sessionID);
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MyH323_ExternalRTPChannel(
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MyH323Connection & connection,
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const H323Capability & capability,
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Directions direction,
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unsigned sessionID,
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const H323TransportAddress & data,
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const H323TransportAddress & control);
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/* Create a new channel. */
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MyH323_ExternalRTPChannel(
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MyH323Connection & connection,
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const H323Capability & capability,
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Directions direction,
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unsigned sessionID,
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const PIPSocket::Address & ip,
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WORD dataPort);
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/* Destructor */
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~MyH323_ExternalRTPChannel();
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BOOL OnReceivedAckPDU(const H245_H2250LogicalChannelAckParameters & param);
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PIPSocket::Address externalIpAddress;
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WORD externalPort;
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};
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/**
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* The MyProcess is a necessary descendant PProcess class so that the H323EndPoint
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* objected to be created from within that class. (Who owns main() problem).
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*/
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class MyProcess : public PProcess {
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PCLASSINFO(MyProcess, PProcess);
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public:
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MyProcess();
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void Main();
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};
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#endif /* !defined AST_H323_H */
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