167 lines
6.7 KiB
C
167 lines
6.7 KiB
C
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/*==========================================================================
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*
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* Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
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*
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* File: ClientRecordSubSystem.h
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* Content: Recording sub-system.
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*
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* History:
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* Date By Reason
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* ==== == ======
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* 07/19/99 rodtoll Modified from original
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* 08/25/99 rodtoll General Cleanup/Modifications to support new
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* compression sub-system.
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* 08/27/99 rodtoll General cleanup/Simplification of recording subsystem
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* Added reset of message when target changes
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* Fixed recording start/stop notifications
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* 09/29/99 pnewson Major AGC overhaul
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* 10/29/99 rodtoll Bug #113726 - Integrate Voxware Codecs, updating to use new
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* pluggable codec architecture.
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* 11/12/99 rodtoll Updated to use new recording classes, improved error
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* handling and new initialize function.
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* rodtoll Added new high CPU handling code for record.
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* 11/13/99 rodtoll Added parameter to GetNextFrame
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* 11/18/99 rodtoll Re-activated recording pointer lockup detection code
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* 01/10/00 pnewson AGC and VA tuning
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* 01/14/2000 rodtoll Updated to handle new multiple targets
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* 02/08/2000 rodtoll Bug #131496 - Selecting DVTHRESHOLD_DEFAULT results in voice
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* never being detected
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* 02/17/2000 rodtoll Bug #133691 - Choppy audio - queue was not adapting
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* Added instrumentation
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* 04/05/2000 rodtoll Updated to use new async, no buffer copy sends, removed old transmit buffer
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* 04/19/2000 pnewson Fix to make AGC code work properly with VA off
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* 07/09/2000 rodtoll Added signature bytes
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* 08/18/2000 rodtoll Bug #42542 - DPVoice retrofit: Voice retrofit locks up after host migration
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* 08/29/2000 rodtoll Bug #43553 - Start() returns 0x80004005 after lockup
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* rodtoll Bug #43620 - DPVOICE: Recording buffer locks up on Aureal Vortex (VxD).
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* Updated reset procedure so it ignores Stop failures and if Start() fails
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* it tries resetting the recording system.
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* 08/31/2000 rodtoll Bug #43804 - DVOICE: dwSensitivity structure member is confusing - should be dwThreshold
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* 04/11/2001 rodtoll WINBUG #221494 DPVOICE: Updates to lockup detection methods
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*
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***************************************************************************/
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#ifndef __CLIENTRECORDSUBSYSTEM_H
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#define __CLIENTRECORDSUBSYSTEM_H
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class CAGCVA;
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// CClientRecordSubSystem
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//
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// This class implements the recording subsystem for the BattleCom client.
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// It works closely with the control CShadowClientControl object to
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// provide the recording / compression and transmissions portions of the
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// client. This includes addition of microphone clicks to outgoing
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// audio streams when appropriate.
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//
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// The core of the recording system is a finite state machine which
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// is used to provide a way of managing the recording system's
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// state and to provide smooth transitions between various
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// states.
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//
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// It looks to the CShadowClientControl object to detect when keys
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// are pressed and to provide neccessary parameters.
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//
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#define VSIG_CLIENTRECORDSYSTEM 'SRCV'
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#define VSIG_CLIENTRECORDSYSTEM_FREE 'SRC_'
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//
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class CClientRecordSubSystem
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{
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protected: // State Machine States
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typedef enum {
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RECORDSTATE_IDLE = 0, // Recording is idle, no transmissions required
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RECORDSTATE_VA, // Voice activated mode
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RECORDSTATE_PTT // Push to talk mode
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} RecordState;
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public:
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CClientRecordSubSystem( CDirectVoiceClientEngine *clientEngine );
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~CClientRecordSubSystem();
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protected:
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friend class CDirectVoiceClientEngine;
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HRESULT Initialize();
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HRESULT GetNextFrame( LPBOOL fContinue );
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BOOL IsMuted();
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BOOL IsValidTarget();
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inline BOOL IsPTT() { return !IsVA(); };
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inline BOOL IsVA() { return (m_clientEngine->m_dvClientConfig.dwFlags & DVCLIENTCONFIG_MANUALVOICEACTIVATED || m_clientEngine->m_dvClientConfig.dwFlags & DVCLIENTCONFIG_AUTOVOICEACTIVATED); };
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BOOL CheckVA();
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HRESULT DoAGC();
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void EndMessage();
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void StartMessage();
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HRESULT TransmitFrame();
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protected: // FSM
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HRESULT BuildAndTransmitSpeechHeader( BOOL bSendToServer );
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HRESULT BuildAndTransmitSpeechWithTarget( BOOL bSendToServer );
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HRESULT RecordFSM();
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HRESULT HandleAutoVolumeAdjust();
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HRESULT CleanupForReset();
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HRESULT ResetForLockup();
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void InitStats();
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void BeginStats();
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void CompleteStats();
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protected:
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DWORD m_dwSignature;
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DWORD m_dwSilentTime; // # of ms that the input has been silent
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DWORD m_dwFrameTime; // Amount of ms per frame
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CAGCVA* m_pagcva; // Auto Gain control and Voice Activation algorithm
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void DoFrameCheck();
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protected:
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RecordState m_recordState; // Current state of the FSM
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PDPVCOMPRESSOR m_converter; // AudioConverter for outgoing data
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DWORD m_uncompressedSize; // Size of frame in uncompressed format
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DWORD m_compressedSize; // Maximum size in bytes of compressed frame
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BOOL m_eightBit; // Is recording format 8-bit?
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DWORD m_remain; // # of trailing frames we should have
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unsigned char m_currentBuffer; // Buffer ID of current recording buffer
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unsigned long m_framesPerPeriod; // # of subbuffers in the recording bfufer
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CDirectVoiceClientEngine *m_clientEngine; // The client engine this subsystem is for
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BOOL m_transmitFrame; // Transmit Current frame?
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unsigned char *m_bufferPtr; // Pointer to current buffer?
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DWORD m_dwSilenceTimeout; // Amount of silence in ms before transmissions tops
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BOOL m_lastFrameTransmitted;
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// Was the last frame transmitted
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unsigned char m_msgNum; // Current message number
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unsigned char m_seqNum; // Current sequence #
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LPBYTE m_pbConstructBuffer;
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DWORD m_dwCurrentPower; // Power level of the last packet
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DWORD m_dwLastTargetVersion; // Version of target info on last frame (to check for changes)
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LONG m_lSavedVolume; // System record volume when recording started
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BOOL m_fRecordVolumeSaved; // Was the system record volume saved?
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DWORD m_dwResetCount;
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DWORD m_dwNextReadPos;
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DWORD m_dwLastReadPos;
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DWORD m_dwLastBufferPos;
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DWORD m_dwPassesSincePosChange;
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BOOL m_fIgnoreFrame;
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DWORD m_dwLastFrameTime; // GetTickCount() at last frame
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BOOL m_fLostFocus;
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DWORD m_dwFrameCount;
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DVID *m_prgdvidTargetCache;
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DWORD m_dwTargetCacheSize;
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DWORD m_dwTargetCacheEntries;
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DWORD m_dwFullBufferSize; // Cached version of m_uncompressedSize*m_framesPerPeriod
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};
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#endif
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