336 lines
8.8 KiB
C
336 lines
8.8 KiB
C
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/*++
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Copyright (c) 1992-1998 Microsoft Corporation
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Module Name:
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H323pdu.h
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Abstract:
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Describes interface between H323TSP and H323MSP.
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Environment:
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User Mode - Win32
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--*/
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#ifndef __H323_PDU_H_
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#define __H323_PDU_H_
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typedef enum {
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//
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// H323TSP_NEW_CALL_INDICATION - sent only from the TSP
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// to the MSP in order to initiate communication once
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// a call has been created.
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//
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H323TSP_NEW_CALL_INDICATION,
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//
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// H323TSP_CLOSE_CALL_COMMAND - sent only from the TSP
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// to the MSP in order to stop all the streaming for a call.
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//
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H323TSP_CLOSE_CALL_COMMAND,
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//
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// H323TSP_OPEN_CHANNEL_RESPONSE - sent only from the TSP
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// to the MSP in response to H323MSP_OPEN_CHANNEL_REQUEST.
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//
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H323TSP_OPEN_CHANNEL_RESPONSE,
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//
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// H323TSP_ACCEPT_CHANNEL_REQUEST - sent only from the TSP
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// to the MSP in order to request the acceptance of an
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// incoming logical channel.
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//
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H323TSP_ACCEPT_CHANNEL_REQUEST,
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//
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// H323TSP_CLOSE_CHANNEL_COMMAND - sent only from the TSP
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// to the MSP in order to demand the immediate closure of
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// an incoming or outgoing logical channel.
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//
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H323TSP_CLOSE_CHANNEL_COMMAND,
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//
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// H323TSP_VIDEO_FAST_UPDATE_PICTURE_COMMAND - sent only from the TSP
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// to the MSP in order to request an I-frame transmittal
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//
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H323TSP_VIDEO_FAST_UPDATE_PICTURE_COMMAND,
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//
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// H323TSP_FLOW_CONTROL_COMMAND - sent only from the TSP
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// to the MSP in order to request media stream bit rate
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// change
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H323TSP_FLOW_CONTROL_COMMAND
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} H323TSP_MESSAGE_TYPE;
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typedef enum {
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//
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// H323MSP_OPEN_CHANNEL_REQUEST - sent only from the MSP
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// to the TSP in order to request the negotiation on an
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// outgoing logical channel.
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//
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H323MSP_OPEN_CHANNEL_REQUEST,
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//
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// H323MSP_ACCEPT_CHANNEL_RESPONSE - sent only from the MSP
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// to the TSP in reponse to H323TSP_ACCEPT_CHANNEL_REQUEST.
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//
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H323MSP_ACCEPT_CHANNEL_RESPONSE,
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//
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// H323MSP_CLOSE_CHANNEL_COMMAND - sent only from the MSP
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// to the TSP in order to demand the immediate closure of
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// an incoming or outgoing logical channel.
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//
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H323MSP_CLOSE_CHANNEL_COMMAND,
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//
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// H323MSP_QOS_EVENT - sent only from the MSP to the TSP for
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// QOS events. In the future, we might move the event to MSP space.
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//
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H323MSP_QOS_Evnet,
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//
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// H323MSP_VIDEO_FAST_UPDATE_PICTURE_COMMAND - sent only from the
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// MSP to the TSP in order to request an I-frame transmittal from
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// the remote entity
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//
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H323MSP_VIDEO_FAST_UPDATE_PICTURE_COMMAND,
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//
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// H323MSP_FLOW_CONTROL_COMMAND - sent only from the MSP to the TSP
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// in order to ask the remote entity to change media stream bit rate
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//
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H323MSP_FLOW_CONTROL_COMMAND,
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//
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// H323MSP_CONFIG_T120_COMMAND - sent only from the MSP to the TSP
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// in order to set an external T120 address to the TSP.
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//
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H323MSP_CONFIG_T120_COMMAND,
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//
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// H323MSP_CONFIG_CAPABILITY_COMMAND - sent only from the MSP to the TSP
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// in order to configure the capability array of the TSP.
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//
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H323MSP_CONFIG_CAPABILITY_COMMAND,
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//
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// H323MSP_SET_ALIAS_COMMAND - sent only from the MSP to the TSP
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// to setup an alias name for the address
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//
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H323MSP_SET_ALIAS_COMMAND
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} H323MSP_MESSAGE_TYPE;
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typedef enum {
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MEDIA_AUDIO,
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MEDIA_VIDEO
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} MEDIATYPE;
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#ifndef H245_CAPABILITY_DEFINED
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typedef enum H245_CAPABILITY
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{
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HC_G711,
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HC_G723,
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HC_H263QCIF,
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HC_H261QCIF
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} H245_CAPABILITY;
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#endif
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#define MAX_CAPS (HC_H261QCIF - HC_G711 + 1)
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typedef struct _VIDEOSETTINGS
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{
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BOOL bCIF;
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DWORD dwMaxBitRate; // the encoder should never exceed this value.
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DWORD dwStartUpBitRate; // the encoder uses this value to start
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} VIDEOSETTINGS, *PVIDEOSETTINGS;
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typedef struct _G723SETTINGS
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{
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BOOL bG723LowSpeed;
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} G723SETTINGS, *PG723SETTINGS;
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typedef struct _G729SETTINGS
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{
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BOOL bDummy; // I.K. 03-23-1999.
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// A dummy field for now.
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} G729SETTINGS, *PG729SETTINGS;
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typedef struct _AUDIOSETTINGS
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{
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DWORD dwMillisecondsPerPacket;
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union {
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G723SETTINGS G723Settings;
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G729SETTINGS G729Settings;
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};
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} AUDIOSETTINGS, *PAUDIOSETTINGS;
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typedef struct _STREAMSETTINGS
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{
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MEDIATYPE MediaType;
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DWORD dwPayloadType; // RTP payload type
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DWORD dwDynamicType; // RTP dynamic payload type
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DWORD dwIPLocal; // local IP address in host byte order.
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WORD wRTPPortLocal; // local port number in host byte order.
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WORD wRTCPPortLocal;
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DWORD dwIPRemote; // remote IP address in host byte order.
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WORD wRTPPortRemote; // remote port number in host byte order.
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WORD wRTCPPortRemote;
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union {
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VIDEOSETTINGS Video;
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AUDIOSETTINGS Audio;
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};
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} STREAMSETTINGS, *PSTREAMSETTINGS;
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typedef struct _H323MSG_OPEN_CHANNEL_REQUEST {
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HANDLE hmChannel; // msp channel handle
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STREAMSETTINGS Settings; // local address and requested settings
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} H323MSG_OPEN_CHANNEL_REQUEST, *PH323MSG_OPEN_CHANNEL_REQUEST;
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typedef struct _H323MSG_OPEN_CHANNEL_RESPONSE {
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HANDLE hmChannel; // handle from OPEN_CHANNEL_REQUEST
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HANDLE htChannel; // tsp channel channel
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STREAMSETTINGS Settings; // remote address and agreed upon settings
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} H323MSG_OPEN_CHANNEL_RESPONSE, *PH323MSG_OPEN_CHANNEL_RESPONSE;
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typedef struct _H323MSG_ACCEPT_CHANNEL_REQUEST {
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HANDLE htChannel; // tsp channel handle
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STREAMSETTINGS Settings; // remote address and requested settings
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} H323MSG_ACCEPT_CHANNEL_REQUEST, *PH323MSG_ACCEPT_CHANNEL_REQUEST;
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typedef struct _H323MSG_ACCEPT_CHANNEL_RESPONSE {
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HANDLE htChannel; // handle from ACCEPT_CHANNEL_REQUEST
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HANDLE hmChannel; // msp channel handle
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STREAMSETTINGS Settings; // local address and agreed upon settings
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} H323MSG_ACCEPT_CHANNEL_RESPONSE, *PH323MSG_ACCEPT_CHANNEL_RESPONSE;
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typedef struct _H323MSG_CLOSE_CHANNEL_COMMAND {
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DWORD dwReason; // normal case is zero
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HANDLE hChannel; // channel handle
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} H323MSG_CLOSE_CHANNEL_COMMAND, *PH323MSG_CLOSE_CHANNEL_COMMAND;
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typedef struct _H323MSG_FLOW_CONTROL_COMMAND {
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DWORD dwBitRate; // requested bit rate (units of bps)
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HANDLE hChannel; // MSP or TSP channel handle
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} H323MSG_FLOW_CONTROL_COMMAND, *PH323MSG_FLOW_CONTROL_COMMAND;
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typedef struct _H323MSG_CONFIG_T120_COMMAND {
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BOOL fEnable; // Enable or disable T120.
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DWORD dwIP; // The IP address of the external T120 service.
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WORD wPort; // The port number of the external T120 service.
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} H323MSG_CONFIG_T120_COMMAND, *PH323MSG_CONFIG_T120_COMMAND;
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typedef struct _H323MSG_CONFIG_CAPABILITY_COMMAND {
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DWORD dwNumCaps;
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DWORD pCapabilities[MAX_CAPS]; // The list of capabilities.
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DWORD pdwWeights[MAX_CAPS]; // MSP or TSP channel handle
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} H323MSG_CONFIG_CAPABILITY_COMMAND, *PH323MSG_CONFIG_CAPABILITY_COMMAND;
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#define MAX_ALIAS_LENGTH 64
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typedef struct _H323MSG_SET_ALIAS_COMMAND {
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WCHAR strAlias[MAX_ALIAS_LENGTH]; // alias name
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DWORD dwLength; // length of the alias
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} H323MSG_SET_ALIAS_COMMAND, *PH323MSG_SET_ALIAS_COMMAND;
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typedef struct _H323MSG_VIDEO_FAST_UPDATE_PICTURE_COMMAND {
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HANDLE hChannel; // MSP or TSP channel handle
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} H323MSG_VIDEO_FAST_UPDATE_PICTURE_COMMAND,
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*PH323MSG_VIDEO_FAST_UPDATE_PICTURE_COMMAND;
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typedef struct _H323MSG_QOS_EVENT {
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DWORD dwEvent; // the QOS event as defined in TSPI.h
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HANDLE htChannel; // channel handle
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} H323MSG_QOS_EVENT, *PH323MSG_QOS_EVENT;
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typedef struct _H323TSP_MESSAGE {
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H323TSP_MESSAGE_TYPE Type;
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union {
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H323MSG_OPEN_CHANNEL_RESPONSE OpenChannelResponse;
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H323MSG_ACCEPT_CHANNEL_REQUEST AcceptChannelRequest;
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H323MSG_CLOSE_CHANNEL_COMMAND CloseChannelCommand;
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H323MSG_VIDEO_FAST_UPDATE_PICTURE_COMMAND VideoFastUpdatePictureCommand;
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H323MSG_FLOW_CONTROL_COMMAND FlowControlCommand;
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};
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} H323TSP_MESSAGE, *PH323TSP_MESSAGE;
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typedef struct _H323MSP_MESSAGE {
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H323MSP_MESSAGE_TYPE Type;
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union {
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H323MSG_OPEN_CHANNEL_REQUEST OpenChannelRequest;
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H323MSG_ACCEPT_CHANNEL_RESPONSE AcceptChannelResponse;
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H323MSG_CLOSE_CHANNEL_COMMAND CloseChannelCommand;
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H323MSG_QOS_EVENT QOSEvent;
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H323MSG_VIDEO_FAST_UPDATE_PICTURE_COMMAND VideoFastUpdatePictureCommand;
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H323MSG_FLOW_CONTROL_COMMAND FlowControlCommand;
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H323MSG_CONFIG_T120_COMMAND ConfigT120Command;
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H323MSG_CONFIG_CAPABILITY_COMMAND ConfigCapabilityCommand;
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H323MSG_SET_ALIAS_COMMAND SetAliasCommand;
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};
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} H323MSP_MESSAGE, *PH323MSP_MESSAGE;
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#endif
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