Leaked source code of windows server 2003
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/*==========================================================================
*
* Copyright (C) 1999 - 1999 Microsoft Corporation. All Rights Reserved.
*
* File: vplayer.h
* Content: Voice Player Entry
*
* History:
* Date By Reason
* ==== == ======
* 03/26/00 rodtoll Created
* 07/09/2000 rodtoll Added signature bytes
* 09/05/2001 simonpow Bug #463972. Added constuct/destruct methods to enable
* allocations and de-allocations via CFixedPool objects
* 02/21/2002 simonpow Bug #549974. Added rate control for incoming speech pkts
***************************************************************************/
#include "dxvoicepch.h"
#undef DPF_MODNAME
#define DPF_MODNAME "CVoicePlayer::Construct"
BOOL CVoicePlayer::PoolAllocFunction(void * pvItem, void * )
{
CVoicePlayer * pNewPlayer=(CVoicePlayer * ) pvItem;
pNewPlayer->CVoicePlayer::CVoicePlayer();
pNewPlayer->Reset();
return TRUE;
}
#undef DPF_MODNAME
#define DPF_MODNAME "CVoicePlayer::Destruct"
void CVoicePlayer::PoolDeallocFunction(void * pvItem)
{
((CVoicePlayer * ) pvItem)->CVoicePlayer::~CVoicePlayer();
}
CVoicePlayer::CVoicePlayer()
{
m_dwSignature = VSIG_VOICEPLAYER;
}
CVoicePlayer::~CVoicePlayer()
{
if (IsInitialized())
DeInitialize();
m_dwSignature = VSIG_VOICEPLAYER_FREE;
}
void CVoicePlayer::Reset()
{
m_dwFlags = 0;
m_dvidPlayer = 0;
m_lRefCount = 0;
m_lpInBoundAudioConverter = NULL;
m_lpInputQueue = NULL;
m_dwLastData = 0;
m_dwHostOrderID = 0xFFFFFFFF;
m_bLastPeak = 0;
m_dwLastPlayback = 0;
m_dwNumSilentFrames = 0;
m_dwTransportFlags = 0;
m_dwNumLostFrames = 0;
m_dwNumSpeechFrames = 0;
m_dwNumReceivedFrames = 0;
m_pvPlayerContext = NULL;
m_blNotifyList.Initialize();
m_blPlayList.Initialize();
m_dwNumTargets = 0;
m_pdvidTargets = NULL;
m_lSpeechPktsInCurrentBucket=0;
m_lCurrentSpeechPktBucket=0;
}
#undef DPF_MODNAME
#define DPF_MODNAME "CVoicePlayer::SetPlayerTargets"
//
// Assumes the array has been checked for validity
//
HRESULT CVoicePlayer::SetPlayerTargets( PDVID pdvidTargets, DWORD dwNumTargets )
{
Lock();
delete [] m_pdvidTargets;
if( dwNumTargets == 0 )
{
m_pdvidTargets = NULL;
}
else
{
m_pdvidTargets = new DVID[dwNumTargets];
if( m_pdvidTargets == NULL )
{
m_pdvidTargets = NULL;
m_dwNumTargets = 0;
DPFX(DPFPREP, DVF_ERRORLEVEL, "Error allocating memory" );
UnLock();
return DVERR_OUTOFMEMORY;
}
memcpy( m_pdvidTargets, pdvidTargets, sizeof(DVID)*dwNumTargets );
}
m_dwNumTargets = dwNumTargets;
UnLock();
return DV_OK;
}
HRESULT CVoicePlayer::Initialize( const DVID dvidPlayer, const DWORD dwHostOrder, DWORD dwFlags, PVOID pvContext,
CFixedPool *pOwner )
{
Reset();
if (!DNInitializeCriticalSection( &m_csLock ))
{
return DVERR_OUTOFMEMORY;
}
m_lRefCount = 1;
m_pOwner = pOwner;
m_dvidPlayer = dvidPlayer;
m_dwHostOrderID = dwHostOrder;
m_dwLastData = GetTickCount();
m_dwLastPlayback = 0;
m_dwTransportFlags = dwFlags;
m_pvPlayerContext = pvContext;
m_lSpeechPktsInCurrentBucket=0;
m_lCurrentSpeechPktBucket=0;
m_dwFlags |= VOICEPLAYER_FLAGS_INITIALIZED;
return DV_OK;
}
void CVoicePlayer::GetStatistics( PVOICEPLAYER_STATISTICS pStats )
{
memset( pStats, 0x00, sizeof( VOICEPLAYER_STATISTICS ) );
// Get queue statistics
if( m_lpInputQueue != NULL )
{
Lock();
m_lpInputQueue->GetStatistics( &pStats->queueStats );
UnLock();
}
pStats->dwNumLostFrames = m_dwNumLostFrames;
pStats->dwNumSilentFrames = m_dwNumSilentFrames;
pStats->dwNumSpeechFrames = m_dwNumSpeechFrames;
pStats->dwNumReceivedFrames = m_dwNumReceivedFrames;
return;
}
HRESULT CVoicePlayer::CreateQueue( PQUEUE_PARAMS pQueueParams )
{
HRESULT hr;
DNEnterCriticalSection( &CDirectVoiceEngine::s_csSTLLock );
m_lpInputQueue = new CInputQueue2();
if( m_lpInputQueue == NULL )
{
DPFX(DPFPREP, 0, "Error allocating memory" );
return DVERR_OUTOFMEMORY;
}
hr = m_lpInputQueue->Initialize( pQueueParams );
if( FAILED( hr ) )
{
DPFX(DPFPREP, 0, "Failed initializing queue hr=0x%x", hr );
delete m_lpInputQueue;
m_lpInputQueue = NULL;
return hr;
}
DNLeaveCriticalSection( &CDirectVoiceEngine::s_csSTLLock );
return hr;
}
HRESULT CVoicePlayer::CreateInBoundConverter( const GUID &guidCT, PWAVEFORMATEX pwfxTargetFormat )
{
HRESULT hr;
hr = DVCDB_CreateConverter( guidCT, pwfxTargetFormat, &m_lpInBoundAudioConverter );
if( FAILED( hr ) )
{
DPFX(DPFPREP, 0, "Error creating audio converter hr=0x%x" , hr );
return hr;
}
if( pwfxTargetFormat->wBitsPerSample == 8)
{
m_dwFlags |= VOICEPLAYER_FLAGS_TARGETIS8BIT;
}
return hr;
}
HRESULT CVoicePlayer::DeInitialize()
{
FreeResources();
m_pOwner->Release( this );
return DV_OK;
}
HRESULT CVoicePlayer::HandleReceive( PDVPROTOCOLMSG_SPEECHHEADER pdvSpeechHeader, PBYTE pbData, DWORD dwSize )
{
CFrame tmpFrame;
tmpFrame.SetSeqNum( pdvSpeechHeader->bSeqNum );
tmpFrame.SetMsgNum( pdvSpeechHeader->bMsgNum );
tmpFrame.SetIsSilence( FALSE );
tmpFrame.SetFrameLength( dwSize );
tmpFrame.UserOwn_SetData( pbData, dwSize );
Lock();
DPFX(DPFPREP, DVF_CLIENT_SEQNUM_DEBUG_LEVEL, "SEQ: Receive: Msg [%d] Seq [%d]", pdvSpeechHeader->bMsgNum, pdvSpeechHeader->bSeqNum );
// STATSBLOCK: Begin
//m_stats.m_dwPRESpeech++;
// STATSBLOCK: End
m_lpInputQueue->Enqueue( tmpFrame );
m_dwLastData = GetTickCount();
DPFX(DPFPREP, DVF_INFOLEVEL, "Received speech is buffered!" );
m_dwNumReceivedFrames++;
UnLock();
return DV_OK;
}
CFrame *CVoicePlayer::Dequeue(BOOL *pfLost, BOOL *pfSilence)
{
CFrame *frTmpFrame;
Lock();
frTmpFrame = m_lpInputQueue->Dequeue();
UnLock();
if( !frTmpFrame->GetIsSilence() )
{
*pfSilence = FALSE;
m_dwLastPlayback = GetTickCount();
m_dwNumSpeechFrames++;
}
else
{
m_dwNumSilentFrames++;
*pfSilence = TRUE;
}
if( frTmpFrame->GetIsLost() )
{
*pfLost = TRUE;
m_dwNumLostFrames++;
}
else
{
*pfLost = FALSE;
}
return frTmpFrame;
}
HRESULT CVoicePlayer::DeCompressInBound( CFrame *frCurrentFrame, PVOID pvBuffer, PDWORD pdwBufferSize )
{
HRESULT hr;
hr = m_lpInBoundAudioConverter->Convert( frCurrentFrame->GetDataPointer(), frCurrentFrame->GetFrameLength(), pvBuffer, pdwBufferSize, frCurrentFrame->GetIsSilence() );
if( FAILED( hr ) )
{
DPFX(DPFPREP, 0, "Failed converting audio hr=0x%x", hr );
return hr;
}
return hr;
}
HRESULT CVoicePlayer::GetNextFrameAndDecompress( PVOID pvBuffer, PDWORD pdwBufferSize, BOOL *pfLost, BOOL *pfSilence, DWORD *pdwSeqNum, DWORD *pdwMsgNum )
{
CFrame *frTmpFrame;
BYTE bLastPeak;
HRESULT hr;
frTmpFrame = Dequeue(pfLost,pfSilence );
*pdwSeqNum = frTmpFrame->GetSeqNum();
*pdwMsgNum = frTmpFrame->GetMsgNum();
hr = DeCompressInBound( frTmpFrame, pvBuffer, pdwBufferSize );
frTmpFrame->Return();
if( FAILED( hr ) )
{
DPFX(DPFPREP, 0, "Failed converting audio hr=0x%x", hr );
return hr;
}
if( *pfSilence )
{
m_bLastPeak = 0;
}
else
{
m_bLastPeak = FindPeak( (PBYTE) pvBuffer, *pdwBufferSize, Is8BitUnCompressed() );
}
return hr;
}
void CVoicePlayer::FreeResources()
{
DNDeleteCriticalSection( &m_csLock );
DNEnterCriticalSection( &CDirectVoiceEngine::s_csSTLLock );
if( m_lpInputQueue != NULL )
{
delete m_lpInputQueue;
m_lpInputQueue = NULL;
}
DNLeaveCriticalSection( &CDirectVoiceEngine::s_csSTLLock );
if( m_lpInBoundAudioConverter != NULL )
{
m_lpInBoundAudioConverter->Release();
m_lpInBoundAudioConverter = NULL;
}
if( m_pdvidTargets != NULL )
{
delete [] m_pdvidTargets;
m_pdvidTargets = NULL;
}
Reset();
}
#undef DPF_MODNAME
#define DPF_MODNAME "CVoicePlayer::FindAndRemovePlayerTarget"
//
// FindAndRemovePlayerTarget
//
// Searches the list of targets for this player and removes the specified player if it is part
// of the list. The pfFound variable is set to TRUE if the player specfied was in the target
// list, false otherwise.
//
BOOL CVoicePlayer::FindAndRemovePlayerTarget( DVID dvidTargetToRemove )
{
BOOL fFound = FALSE;
Lock();
for( DWORD dwTargetIndex = 0; dwTargetIndex < m_dwNumTargets; dwTargetIndex++ )
{
if( m_pdvidTargets[dwTargetIndex] == dvidTargetToRemove )
{
if( m_dwNumTargets == 1 )
{
delete [] m_pdvidTargets;
m_pdvidTargets = NULL;
}
// Shortcut, move last element into the current element
// prevents re-allocation. (However, it wastes an element of
// target space) *Shrug*. If this is the last element in the list
// we're removing this will simply provide an unessessary duplication
// of the last element. (But num targets is correct so that's ok).
else
{
m_pdvidTargets[dwTargetIndex] = m_pdvidTargets[m_dwNumTargets-1];
}
m_dwNumTargets--;
fFound = TRUE;
break;
}
}
UnLock();
return fFound;
}