Leaked source code of windows server 2003
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/*==========================================================================;
*
* Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
*
* File: dvcsplay.h
* Content: Declaration of CDVCSPlayer class
* History:
* Date By Reason
* ============
* 07/22/99 rodtoll created
* 10/29/99 rodtoll Bug #113726 - Integrate Voxware Codecs, updating to use new
* pluggable codec architecture.
* 01/14/2000 rodtoll Updated to support multiple targets
* 03/27/2000 rodtoll Updated to use new base class for player record
* 03/28/2000 rodtoll Updated to use new player class as base
* rodtoll Moved a bunch of logic out of server into this class
* 03/29/2000 rodtoll Bug #30753 - Added volatile to the class definition
* 11/16/2000 rodtoll Bug #40587 - DPVOICE: Mixing server needs to use multi-processors
* 09/05/2001 simonpow Bug #463972. Added constuct/destruct methods to enable
* allocations and de-allocations via CFixedPool objects
* 02/28/2002 rodtoll WINBUG #549959 - SECURITY: DPVOICE: Voice server trusts client's target list
* - When server controlled targetting is enabled, use server's copy of client
* target list instead of list specified in incoming packet.
***************************************************************************/
#ifndef __DVCSPLAYER_H
#define __DVCSPLAYER_H
#define DPV_TARGETBUFFER_REALLOC_SIZE 10
#undef DPF_SUBCOMP
#define DPF_SUBCOMP DN_SUBCOMP_VOICE
class CDVCSPlayer;
struct CBilinkPlusObject
{
CDVCSPlayer* m_pPlayer;
CBilink m_bl;
};
// CDVCSPlayer
//
// This class extends the CDVPlayer class for client/server servers.
//
volatile class CDVCSPlayer: public CVoicePlayer
{
public:
//called from CFixedPool class to to build/destroy CDVCSPlayer's
static BOOL PoolAllocFunction(void * pvItem, void * pvContext);
static void PoolDeallocFunction(void * pvItem);
HRESULT Initialize( const DVID dvidPlayer, const DWORD dwHostOrder, DWORD dwFlags,
PVOID pvContext, DWORD dwCompressedSize, DWORD dwUnCompressedSize,
CFixedPool *pCSOwner, DWORD dwNumMixingThreads );
HRESULT DeInitialize();
HRESULT HandleMixingReceive( PDVPROTOCOLMSG_SPEECHHEADER pdvSpeechHeader, PBYTE pbData, DWORD dwSize, PDVID pdvidTargets, DWORD dwNumTargets, BOOL fServerTargetting );
HRESULT CompressOutBound( PVOID pvInputBuffer, DWORD dwInputBufferSize, PVOID pvOutputBuffer, DWORD *pdwOutputSize );
inline HRESULT ResizeIfRequired( DWORD dwThreadIndex, DWORD dwNewMaxSize )
{
if( dwNewMaxSize > m_pdwMaxCanHear[dwThreadIndex] )
{
m_pdwMaxCanHear[dwThreadIndex] = dwNewMaxSize+DPV_TARGETBUFFER_REALLOC_SIZE;
if( m_pppCanHear[dwThreadIndex] )
{
delete [] (m_pppCanHear[dwThreadIndex]);
}
m_pppCanHear[dwThreadIndex] = new CDVCSPlayer*[m_pdwMaxCanHear[dwThreadIndex]];
if( m_pppCanHear[dwThreadIndex] == NULL )
{
return DVERR_OUTOFMEMORY;
}
}
return DV_OK;
};
#undef DPF_MODNAME
#define DPF_MODNAME "CDVCSPlayer::CreateOutBoundConverter"
inline HRESULT CreateOutBoundConverter( PWAVEFORMATEX pwfxSourceFormat, const GUID &guidCT )
{
HRESULT hr;
hr = DVCDB_CreateConverter( pwfxSourceFormat, guidCT, &m_lpOutBoundAudioConverter );
if( FAILED( hr ) )
{
DPFX(DPFPREP, 0, "Error creating audio converter hr=0x%x" , hr );
return hr;
}
return hr;
}
inline BOOL IsOutBoundConverterInitialized() const
{
return (m_lpOutBoundAudioConverter != NULL);
}
BOOL ComparePlayerMix( DWORD dwThreadIndex, const CDVCSPlayer *lpdvPlayer );
void ResetForNextRun( DWORD dwThreadIndex, BOOL fDequeue );
void CompleteRun( DWORD dwThreadIndex );
inline void AddToMixingList( DWORD dwThreadIndex, CBilink *pblBilink )
{
m_pblMixingActivePlayers[dwThreadIndex].m_bl.InsertAfter( pblBilink );
}
inline void RemoveFromMixingList(DWORD dwThreadIndex)
{
m_pblMixingActivePlayers[dwThreadIndex].m_bl.RemoveFromList();
}
inline void AddToSpeakingList( DWORD dwThreadIndex, CBilink *pblBilink )
{
m_pblMixingSpeakingPlayers[dwThreadIndex].m_bl.InsertAfter( pblBilink );
}
inline void RemoveFromSpeakingList(DWORD dwThreadIndex)
{
m_pblMixingSpeakingPlayers[dwThreadIndex].m_bl.RemoveFromList();
}
inline void AddToHearingList( DWORD dwThreadIndex, CBilink *pblBilink )
{
m_pblMixingHearingPlayers[dwThreadIndex].m_bl.InsertAfter( pblBilink );
}
inline void RemoveFromHearingList(DWORD dwThreadIndex)
{
m_pblMixingHearingPlayers[dwThreadIndex].m_bl.RemoveFromList();
}
public: // These variables are shared between mixing threads
PDPVCOMPRESSOR m_lpOutBoundAudioConverter;
BOOL m_bLastSent; // Was last frame sent to this user?
BYTE m_bMsgNum; // Last msg # transmitted
BYTE m_bSeqNum; // Last Sequence # transmitted
DWORD m_targetSize; // Tmp to hold size of compressed data (bytes)
BOOL m_lost; // the queue detected that this frame was lost
DWORD m_dwNumMixingThreads;
public: // These variables are on a per/mixing thread basis
CDVCSPlayer **m_pReuseMixFromThisPlayer;
BYTE *m_pbMsgNumToSend; // Last msg # transmitted
BYTE *m_pbSeqNumToSend; // Last Sequence # transmitted
CBilinkPlusObject *m_pblMixingActivePlayers; // Bilink of active players (per mixing thread)
CBilinkPlusObject *m_pblMixingSpeakingPlayers; // Bilink of players speaking (per mixing thread)
CBilinkPlusObject *m_pblMixingHearingPlayers; // Bilink of players hearing (per mixing thread)
DWORD *m_pdwHearCount; // How many people can this user hear? (per mixing thread)
BOOL *m_pfDecompressed; // Has the user's frame been decompressed (per mixing thread)
BOOL *m_pfSilence; // Is the latest from from user silence? (per mixing thread)
BOOL *m_pfNeedsDecompression; // Does this player need decompression (per mixing thread)
CDVCSPlayer ***m_pppCanHear; // Array of pointers to player records this player can hear (per mixing thread)
DWORD *m_pdwMaxCanHear; // # of elements in the m_dwCanHead array (per mixing thread)
CFrame **m_pSourceFrame; // Source frame (per mixing thread)
BYTE *m_sourceUnCompressed; // Buffer to hold decompressed data (per mixing thread)
BYTE *m_targetCompressed; // Has user's mix been created yet? (per mixing thread)
BOOL *m_pfMixed; // Has the user's output been readied? (per mixing thread)
DWORD *m_pdwUnCompressedBufferOffset;
// Offset into uncompressed buffer for thread (per mixing thread)
DWORD *m_pdwCompressedBufferOffset;
// Offset into compressed buffer for thread (per mixing thread)
DWORD *m_pdwResultLength; // Size of compressed data (in bytes) (per mixing thread)
BOOL *m_pfMixToBeReused; // Will this player's mix be re-used by another player (per mixing thread)
CFixedPool *m_pCSOwner;
protected:
//protected to ensure alloc/de-alloc occurs through the
//fixed pool mechanism using construct/destruct calls
CDVCSPlayer();
~CDVCSPlayer();
};
typedef CDVCSPlayer *LPDVCSPLAYER;
#undef DPF_MODNAME
#endif