Leaked source code of windows server 2003
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/*==========================================================================
*
* Copyright (C) 1999-2002 Microsoft Corporation. All Rights Reserved.
*
* File: sndutils.cpp
* Content:
* This module contains the implementation of sound related utility
* functions. Functions in this module manipulate WAVEFORMATEX
* structures and provide full duplex initialization / testing
* facilities.
*
* This module also contains the routines used to measure peak
* of an audio buffer and for voice activation.
*
* History:
* Date By Reason
* ==== == ======
* 07/16/99 rodtoll Created
* 07/30/99 rodtoll Updated util functions to take GUIDs and allow for
* users to pre-create capture/playback devices and
* pass them into InitXXXXDuplex
* 08/25/99 rodtoll General Cleanup/Modifications to support new
* compression sub-system.
* 08/30/99 rodtoll Added new playback format param to sound init
* 09/03/99 rodtoll Fixed return codes on InitFullDuplex
* 09/20/99 rodtoll Now checks for invalid GUIDs for playback/record
* 10/05/99 rodtoll Added DPF_MODNAMEs
* 10/29/99 rodtoll Bug #113726 - Fixed memory leak when full duplex
* fails caused by architecture update.
* 11/12/99 rodtoll Updated full duplex test to use new abstracted recording
* and playback systems.
* rodtoll Updated to allow passing of sounddeviceconfig flags in dwflags
* parameter to init is effected by the flags specified by user
* rodtoll Sound buffers (rec and playback) are now set to silence before
* recording/playback is started.
* 11/22/99 rodtoll Removed unnessessary set of recording buffer to silence.
* 12/01/99 rodtoll Bug #115783 - Will always adjust volume of default device
* Updated for new parameters added by above bug.
* 12/08/99 rodtoll Bug #121054 - Support for capture focus and removed flags
* from buffer, allow dsound to manage buffer location.
* 01/21/2000 pnewson Fixed error cleanup code in InitHalfDuplex
* 01/27/2000 rodtoll Updated tests to accept buffer descriptions and play flags/priority
* 02/10/2000 rodtoll Removed more capture focus
* 02/23/2000 rodtoll Fix to allow to run on dsound7.
* 05/19/2000 rodtoll Bug #35395 - Unable to run two copies of DPVHELP on same system without
* DirectX 8 installed.
* 06/21/2000 rodtoll Bug #35767 - Must implement ability to use effects processing on voice buffers
* Updated sound initialization routines to handle buffers being passed in.
* 07/12/2000 rodtoll Bug #31468 - Add diagnostic spew to logfile to show what is failing the HW Wizard
* 10/04/2000 rodtoll Bug #43510 - DPVOICE: Apps receive a DVMSGID_SESSIONLOST w/DVERR_LOCKEDBUFFER
* 01/04/2001 rodtoll WinBug #94200 - Remove stray comments
* 01/26/2001 rodtoll WINBUG #293197 - DPVOICE: [STRESS} Stress applications cannot tell difference between out of memory and internal errors.
* Remap DSERR_OUTOFMEMORY to DVERR_OUTOFMEMORY instead of DVERR_SOUNDINITFAILURE.
* Remap DSERR_ALLOCATED to DVERR_PLAYBACKSYSTEMERROR instead of DVERR_SOUNDINITFAILURE.
* 04/12/2001 kareemc WINBUG #360971 - Wizard Memory Leaks
*
***************************************************************************/
#include "dxvutilspch.h"
#undef DPF_SUBCOMP
#define DPF_SUBCOMP DN_SUBCOMP_VOICE
#define DSERRBREAK_NAME "DSASSERT"
DNCRITICAL_SECTION g_csDSDebug;
CHAR g_szLastDirectSoundAPI[100] = "";
HRESULT g_hrLastDirectSoundResult = DS_OK;
BOOL g_fDSErrorBreak = FALSE;
void DSERTRACK_Update( const char *szAPICall, HRESULT hrResult )
{
DNEnterCriticalSection( &g_csDSDebug );
if( SUCCEEDED( g_hrLastDirectSoundResult ) )
{
g_hrLastDirectSoundResult = hrResult;
strcpy( g_szLastDirectSoundAPI , szAPICall );
}
DNLeaveCriticalSection( &g_csDSDebug );
}
void DSERRTRACK_Reset()
{
DNEnterCriticalSection( &g_csDSDebug );
g_hrLastDirectSoundResult = DS_OK;
g_szLastDirectSoundAPI[0] = 0;
DNLeaveCriticalSection( &g_csDSDebug );
}
BOOL DSERRTRACK_Init()
{
if (!DNInitializeCriticalSection( &g_csDSDebug ))
{
return FALSE;
}
// Load the setting for the directsound assert
g_fDSErrorBreak = GetProfileIntA( "DirectPlay8", DSERRBREAK_NAME, FALSE );
return TRUE;
}
void DSERRTRACK_UnInit()
{
DNDeleteCriticalSection( &g_csDSDebug );
}
#undef DPF_MODNAME
#define DPF_MODNAME "DV_SetupBufferDesc"
void DV_SetupBufferDesc( LPDSBUFFERDESC lpdsBufferDesc, LPDSBUFFERDESC lpdsBufferSource, LPWAVEFORMATEX lpwfxFormat, DWORD dwBufferSize )
{
// Confirm specified buffer description is valid
if( lpdsBufferSource != NULL )
{
if( lpdsBufferSource->dwSize == sizeof( DSBUFFERDESC1 ) )
{
memcpy( lpdsBufferDesc, lpdsBufferSource, sizeof( DSBUFFERDESC1 ) );
}
else
{
memcpy( lpdsBufferDesc, lpdsBufferSource, sizeof( DSBUFFERDESC ) );
}
// We require the following flags, at a minimum so they should always be set
lpdsBufferDesc->dwFlags |= DSBCAPS_CTRL3D | DSBCAPS_CTRLVOLUME | DSBCAPS_GETCURRENTPOSITION2;
}
// User did not specify a buffer description, let's use our own!
else
{
lpdsBufferDesc->dwSize = sizeof( DSBUFFERDESC );
lpdsBufferDesc->dwFlags = DSBCAPS_CTRL3D | DSBCAPS_CTRLVOLUME | DSBCAPS_GLOBALFOCUS | DSBCAPS_GETCURRENTPOSITION2;
lpdsBufferDesc->dwBufferBytes = 0;
lpdsBufferDesc->dwReserved = 0;
lpdsBufferDesc->lpwfxFormat = NULL;
lpdsBufferDesc->guid3DAlgorithm = DS3DALG_DEFAULT;
}
lpdsBufferDesc->lpwfxFormat = lpwfxFormat;
lpdsBufferDesc->dwBufferBytes = dwBufferSize;
}
#undef DPF_MODNAME
#define DPF_MODNAME "SetRecordBufferToSilence"
HRESULT SetPlaybackBufferToSilence( CAudioPlaybackBuffer *pRecBuffer, const WAVEFORMATEX* lpwfxFormat )
{
HRESULT hr;
LPVOID pBufferPtr1, pBufferPtr2;
DWORD dwBufferSize1, dwBufferSize2;
hr = pRecBuffer->Lock( 0, 0, &pBufferPtr1, &dwBufferSize1, &pBufferPtr2, &dwBufferSize2, DSBLOCK_ENTIREBUFFER );
DSERTRACK_Update( "Lock", hr );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Lock() failed during silence write hr=0x%x", hr );
return hr;
}
memset( pBufferPtr1, (lpwfxFormat->wBitsPerSample==8) ? 0x80 : 0x00, dwBufferSize1 );
hr = pRecBuffer->UnLock( pBufferPtr1, dwBufferSize1, pBufferPtr2, dwBufferSize2 );
DSERTRACK_Update( "UnLock", hr );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unlock() failed uffer unlock failed hr=0x%x", hr );
return hr;
}
return DV_OK;
}
#undef DPF_MODNAME
#define DPF_MODNAME "InitHalfDuplex"
// InitHalfDuplex
//
// This function initializes the playback system for the
// specified compression type and the specified playback
// format. This function is used to initialize
// the AudioPlaybackDevice and AudioPlaybackBuffer.
//
// It also starts the audio buffer which is used for voice
// output playing. (In looping mode).
//
// Parameters:
// HWND hwnd -
// Window handle for the window where the output will
// be associated
// ARDID playbackDeviceID -
// The deviceID for the device which will be used for
// playback
// CAudioPlaybackDevice ** -
// A pointer to a pointer which will contain a pointer
// to a newly created CAudioPlaybackDevice which will
// represent the playback device on success.
// CAudioPlaybackBuffer ** -
// A pointer to a pointer which will contain a pointer
// to a newly created CAudioPlaybacKbuffer which will
// be used for voice audio output on success.
// CompressionType ct -
// The type of compression which will be in use. Used
// to determine buffer sizes etc.
// WAVEFORMATEX *primaryFormat -
// Pointer to a WAVEFORMATEX structure describing the
// format of the voice output. (This will also be used
// to set the primary format of the output device if
// normal is set to false).
// bool normal -
// Specifies if normal mode should be used or not.
// (Only used when using the DirectSound playback
// system. Set to true for normal cooperative mode,
// false for priority mode).
//
// Returns:
// bool -
// Returns true if playback was initializes succesfully,
// false if initialization fails.
//
HRESULT InitHalfDuplex(
HWND hwnd,
const GUID &guidPlayback,
CAudioPlaybackDevice **audioPlaybackDevice,
LPDSBUFFERDESC lpdsBufferDesc,
CAudioPlaybackBuffer **audioPlaybackBuffer,
const GUID &guidCT,
WAVEFORMATEX *primaryFormat,
WAVEFORMATEX *lpwfxPlayFormat,
DWORD dwPlayPriority,
DWORD dwPlayFlags,
DWORD dwFlags
)
{
DWORD frameSize;
HRESULT hr;
DWORD dwBufferSize;
BOOL fPriorityMode;
DSBUFFERDESC dsBufferDesc;
BOOL fPlaybackDeviceAllocated = FALSE;
BOOL fPlaybackBufferAllocated = FALSE;
fPriorityMode = !( dwFlags & DVSOUNDCONFIG_NORMALMODE );
// *audioPlaybackBuffer = NULL;
DPFX(DPFPREP, DVF_INFOLEVEL, "HALFDUPLEX INIT: Begin ==========" );
LPDVFULLCOMPRESSIONINFO lpdvfInfo;
hr = DVCDB_GetCompressionInfo( guidCT, &lpdvfInfo );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Error loading compression type: hr = 0x%x", hr );
goto INIT_EXIT_ERROR2;
}
if( (*audioPlaybackDevice) == NULL )
{
#ifdef __WAVESUBSYSTEM
if( !(dwFlags & DVSOUNDCONFIG_FORCEWAVEOUT) )
{
#endif
// Create the object to represent the device using the playback subsystem's
// CreateDevice function
(*audioPlaybackDevice) = new CDirectSoundPlaybackDevice();
fPlaybackDeviceAllocated = TRUE;
if( *audioPlaybackDevice == NULL )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Out of memory" );
hr = DVERR_OUTOFMEMORY;
goto INIT_EXIT_ERROR2;
}
hr = (*audioPlaybackDevice)->Initialize( guidPlayback, hwnd, primaryFormat, fPriorityMode );
#ifndef __WAVESUBSYSTEM
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize playback. hr=0x%x", hr );
goto INIT_EXIT_ERROR2;
}
#endif
#ifdef __WAVESUBSYSTEM
}
if( dwFlags & DVSOUNDCONFIG_FORCEWAVEOUT ||
((dwFlags & DVSOUNDCONFIG_ALLOWWAVEOUT) && FAILED( hr ))
)
{
Diagnostics_Write( DVF_ERRORLEVEL, "Could not initialize directsound, defaulting to waveout hr=0x%x", hr );
delete (*audioPlaybackDevice);
(*audioPlaybackDevice) = new CWaveOutPlaybackDevice( );
fPlaybackDeviceAllocated = TRUE;
if( (*audioPlaybackDevice) == NULL )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Out of memory" );
hr = DVERR_OUTOFMEMORY;
goto INIT_EXIT_ERROR2;
}
hr = (*audioPlaybackDevice)->Initialize( guidPlayback, hwnd, primaryFormat, fPriorityMode );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Could not initalize waveOut. Init failed hr=0x%x", hr );
goto INIT_EXIT_ERROR2;
}
}
else if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize playback. hr=0x%x", hr );
goto INIT_EXIT_ERROR2;
}
#endif
// At this point we should have a valid device, waveOut or DirectSound
}
DPFX(DPFPREP, DVF_INFOLEVEL, "> Play init" );
// Create a buffer if the user didn't specify one
if( !(*audioPlaybackBuffer) )
{
frameSize = DVCDB_CalcUnCompressedFrameSize( lpdvfInfo, lpwfxPlayFormat );
dwBufferSize = lpdvfInfo->dwFramesPerBuffer * frameSize;
DV_SetupBufferDesc( &dsBufferDesc, lpdsBufferDesc, lpwfxPlayFormat, dwBufferSize );
// Create the audio buffer which will be used for output
hr = (*audioPlaybackDevice)->CreateBuffer( &dsBufferDesc, frameSize, audioPlaybackBuffer);
fPlaybackBufferAllocated = TRUE;
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to create sound buffer. hr=0x%x", hr );
goto INIT_EXIT_ERROR2;
}
}
DPFX(DPFPREP, DVF_INFOLEVEL, "> Play init 2" );
hr = SetPlaybackBufferToSilence( *audioPlaybackBuffer, lpwfxPlayFormat );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Unable to set playback to silence" );
goto INIT_EXIT_ERROR2;
}
DPFX(DPFPREP, DVF_INFOLEVEL, "> Play init 3" );
// Start the audio playback buffer playing
hr = (*audioPlaybackBuffer)->Play( dwPlayPriority, dwPlayFlags );
if( FAILED( hr ) )
{
DPFX(DPFPREP, DVF_ERRORLEVEL, "> Can't play" );
goto INIT_EXIT_ERROR2;
}
Diagnostics_Write( DVF_INFOLEVEL, "Half Duplex Init Result = DV_OK " );
return DV_OK;
// Handle errors
INIT_EXIT_ERROR2:
if( fPlaybackBufferAllocated && *audioPlaybackBuffer != NULL )
{
delete *audioPlaybackBuffer;
*audioPlaybackBuffer = NULL;
}
if( fPlaybackDeviceAllocated && *audioPlaybackDevice != NULL )
{
delete *audioPlaybackDevice;
*audioPlaybackDevice = NULL;
}
Diagnostics_Write( DVF_ERRORLEVEL, "Half Duplex Init Result = 0x%x", hr );
return hr;
}
#undef DPF_MODNAME
#define DPF_MODNAME "InitializeRecordBuffer"
HRESULT InitializeRecordBuffer( HWND hwnd, const DVFULLCOMPRESSIONINFO* lpdvfInfo, CAudioRecordDevice *parecDevice, CAudioRecordBuffer **pparecBuffer, DWORD dwFlags )
{
WAVEFORMATEX *lpwfxRecordFormat;
DSCBUFFERDESC1 dscdesc;
DWORD dwFrameSize;
HRESULT hr;
for( DWORD dwIndex = 0; dwIndex < GetNumRecordFormats(); dwIndex++ )
{
lpwfxRecordFormat = GetRecordFormat( dwIndex );
dwFrameSize = DVCDB_CalcUnCompressedFrameSize( lpdvfInfo, lpwfxRecordFormat );
memset( &dscdesc, 0x00, sizeof( DSCBUFFERDESC1 ) );
dscdesc.dwSize = sizeof( DSCBUFFERDESC1 );
dscdesc.dwFlags = 0;
dscdesc.lpwfxFormat = lpwfxRecordFormat;
dscdesc.dwBufferBytes = dwFrameSize*lpdvfInfo->dwFramesPerBuffer;
if( !(dwFlags & DVSOUNDCONFIG_NOFOCUS) )
{
dscdesc.dwFlags |= DSCBCAPS_FOCUSAWARE;
if( dwFlags & DVSOUNDCONFIG_STRICTFOCUS )
{
dscdesc.dwFlags |= DSCBCAPS_STRICTFOCUS;
}
}
hr = parecDevice->CreateBuffer( (DSCBUFFERDESC *) &dscdesc, hwnd, dwFrameSize, pparecBuffer );
if( FAILED( hr ) )
{
DPFX(DPFPREP, DVF_WARNINGLEVEL, "Could not initialize %d hz, %d bits, %s (hr=0x%x)", lpwfxRecordFormat->nSamplesPerSec,
lpwfxRecordFormat->wBitsPerSample, (lpwfxRecordFormat->nChannels==1) ? _T("Mono") : _T("Stereo"), hr );
continue;
}
else
{
Diagnostics_Write( DVF_INFOLEVEL, "Recording Initialized. Format=" );
Diagnositcs_WriteWAVEFORMATEX( DVF_INFOLEVEL, lpwfxRecordFormat );
}
hr = (*pparecBuffer)->Record(TRUE);
if( FAILED( hr ) )
{
DPFX(DPFPREP, DVF_WARNINGLEVEL, "Could not start rec at %d hz, %d bits, %s (hr=0x%x)", lpwfxRecordFormat->nSamplesPerSec,
lpwfxRecordFormat->wBitsPerSample, (lpwfxRecordFormat->nChannels==1) ? _T("Mono") : _T("Stereo"), hr );
delete (*pparecBuffer);
(*pparecBuffer) = NULL;
continue;
}
else
{
Diagnostics_Write( DVF_INFOLEVEL, "Recording Started. Format=" );
Diagnositcs_WriteWAVEFORMATEX( DVF_INFOLEVEL, lpwfxRecordFormat );
// Reset the directsound erros as we expect errors in this part and if we suceed we handled
// them.
return DV_OK;
}
}
return DVERR_RECORDSYSTEMERROR;
}
#undef DPF_MODNAME
#define DPF_MODNAME "InitFullDuplex"
// InitFullDuplex
//
// The tricky part.
//
// This function is responsible for initializing the system into full duplex
// mode using the specified parameters. This function will create and
// initialize the playback and record devices as well as start the
// playback device playing and the recording device recording. (On success).
// This is neccessary because the order of Play and Record and device
// creation is important.
//
// Parameters:
// HWND hwnd -
// Window handle for the window where the output will
// be associated
// ARDID playbackDeviceID -
// The deviceID for the device which will be used for
// playback
// CAudioPlaybackDevice ** -
// A pointer to a pointer which will contain a pointer
// to a newly created CAudioPlaybackDevice which will
// represent the playback device on success.
// CAudioPlaybackBuffer ** -
// A pointer to a pointer which will contain a pointer
// to a newly created CAudioPlaybacKbuffer which will
// be used for voice audio output on success.
// ARDID recordDeviceID -
// The ARDID for the device which will be used for recording.
// CAudioRecordSubSystem *recordSubSystem -
// This parameter is a pointer to the object representing
// the subsystem which will be used for recording.
// CAudioRecordDevice ** -
// A pointer to a pointer which will contain a newly
// create CAudioRecordDevice for voice recording on
// success.
// CompressionType ct -
// The type of compression which will be in use. Used
// to determine buffer sizes etc.
// WAVEFORMATEX *primaryFormat -
// Pointer to a WAVEFORMATEX structure describing the
// format of the voice output. (This will also be used
// to set the primary format of the output device if
// normal is set to false).
// bool aso -
// This parameter controls the ASO option. The ASO
// option controls the "Startup Order". Enabling
// this option allows full duplex to be initialized
// on some troublesome cards.
// bool normal -
// Specifies if normal mode should be used or not.
// (Only used when using the DirectSound playback
// system. Set to true for normal cooperative mode,
// false for priority mode).
//
// Returns:
// bool - true on successful full duplex initialization,
// false on failure.
//
HRESULT InitFullDuplex(
HWND hwnd,
const GUID &guidPlayback,
CAudioPlaybackDevice **audioPlaybackDevice,
LPDSBUFFERDESC lpdsBufferDesc,
CAudioPlaybackBuffer **audioPlaybackBuffer,
const GUID &guidRecord,
CAudioRecordDevice **audioRecordDevice,
CAudioRecordBuffer **audioRecordBuffer,
const GUID &guidCT,
WAVEFORMATEX *primaryFormat,
WAVEFORMATEX *lpwfxPlayFormat,
BOOL aso,
DWORD dwPlayPriority,
DWORD dwPlayFlags,
DWORD dwFlags
)
{
DWORD frameSize;
DWORD dwBufferSize;
HRESULT hr;
DSBUFFERDESC dsbdesc;
BOOL fPriorityMode;
BOOL fPlaybackDeviceAllocated = FALSE;
BOOL fPlaybackBufferAllocated = FALSE;
BOOL fRecordDeviceAllocated = FALSE;
fPriorityMode = !(dwFlags & DVSOUNDCONFIG_NORMALMODE);
// *audioPlaybackBuffer = NULL;
*audioRecordBuffer = NULL;
DPFX(DPFPREP, DVF_INFOLEVEL, "FULLDUPLEX INIT: Begin ==========" );
LPDVFULLCOMPRESSIONINFO lpdvfInfo;
hr = DVCDB_GetCompressionInfo( guidCT, &lpdvfInfo );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Error loading compression type: hr = 0x%x", hr );
goto INIT_EXIT_ERROR;
}
if( (*audioPlaybackDevice) == NULL )
{
#ifdef __WAVESUBSYSTEM
if( !(dwFlags & DVSOUNDCONFIG_FORCEWAVEOUT) )
{
#endif
// Create the object to represent the device using the playback subsystem's
// CreateDevice function
(*audioPlaybackDevice) = new CDirectSoundPlaybackDevice();
fPlaybackDeviceAllocated = TRUE;
if( *audioPlaybackDevice == NULL )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Out of memory" );
hr = DVERR_OUTOFMEMORY;
goto INIT_EXIT_ERROR;
}
hr = (*audioPlaybackDevice)->Initialize( guidPlayback, hwnd, primaryFormat, fPriorityMode );
#ifndef __WAVESUBSYSTEM
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize playback. hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
#endif
#ifdef __WAVESUBSYSTEM
}
if( dwFlags & DVSOUNDCONFIG_FORCEWAVEOUT ||
((dwFlags & DVSOUNDCONFIG_ALLOWWAVEOUT) && FAILED( hr )) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Could not initialize directsound, defaulting to waveout hr=0x%x", hr );
delete (*audioPlaybackDevice);
(*audioPlaybackDevice) = new CWaveOutPlaybackDevice();
fPlaybackDeviceAllocated = TRUE;
if( (*audioPlaybackDevice) == NULL )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Out of memory" );
hr = DVERR_OUTOFMEMORY;
goto INIT_EXIT_ERROR;
}
hr = (*audioPlaybackDevice)->Initialize( guidPlayback, hwnd, primaryFormat, fPriorityMode );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Could not initalize waveOut. Init failed hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
}
else if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize playback. hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
#endif
}
DPFX(DPFPREP, DVF_INFOLEVEL, "> Play init" );
frameSize = DVCDB_CalcUnCompressedFrameSize( lpdvfInfo, lpwfxPlayFormat );
DPFX(DPFPREP, DVF_INFOLEVEL, "> Play init" );
dwBufferSize = lpdvfInfo->dwFramesPerBuffer * frameSize;
if( !(*audioPlaybackBuffer) )
{
DV_SetupBufferDesc( &dsbdesc, lpdsBufferDesc, lpwfxPlayFormat, dwBufferSize );
// Create the audio buffer which will be used for output
hr = (*audioPlaybackDevice)->CreateBuffer( &dsbdesc, frameSize, audioPlaybackBuffer);
fPlaybackBufferAllocated = TRUE;
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to create sound buffer. hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
}
DPFX(DPFPREP, DVF_INFOLEVEL, "> Play init 2" );
DPFX(DPFPREP, DVF_INFOLEVEL, "> Initing Recording" );
// We're creating the device..
if( (*audioRecordDevice) == NULL )
{
#ifdef __WAVESUBSYSTEM
if( !(dwFlags & DVSOUNDCONFIG_FORCEWAVEIN) )
{
#endif
(*audioRecordDevice) = new CDirectSoundCaptureRecordDevice();
fRecordDeviceAllocated = TRUE;
if( *audioRecordDevice == NULL )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Out of memory" );
hr = DVERR_OUTOFMEMORY;
goto INIT_EXIT_ERROR;
}
hr = (*audioRecordDevice)->Initialize( guidRecord );
// DSC Init passed, try getting a buffer
if( SUCCEEDED( hr ) )
{
hr = InitializeRecordBuffer( hwnd, lpdvfInfo, *audioRecordDevice, audioRecordBuffer, dwFlags );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize dsc buffer hr=0x%x", hr );
#ifndef __WAVESUBSYSTEM
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize record. hr=0x%x", hr );
goto INIT_EXIT_ERROR;
#endif
}
else
{
// Need to reset because we expect errors during initialization.
DSERRTRACK_Reset();
}
}
#ifndef __WAVESUBSYSTEM
else
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize record. hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
#endif
#ifdef __WAVESUBSYSTEM
}
// DSC Init failed, try and get a waveIn device
if( dwFlags & DVSOUNDCONFIG_FORCEWAVEIN ||
((dwFlags & DVSOUNDCONFIG_ALLOWWAVEIN) && FAILED( hr )))
{
Diagnostics_Write( DVF_ERRORLEVEL, "Could not initialize directsoundcapture, defaulting to wavein hr=0x%x", hr );
delete (*audioRecordDevice);
(*audioRecordDevice) = new CWaveInRecordDevice();
fRecordDeviceAllocated = TRUE;
if( (*audioRecordDevice) == NULL )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Out of memory" );
hr = DVERR_OUTOFMEMORY;
goto INIT_EXIT_ERROR;
}
hr = (*audioRecordDevice)->Initialize( guidPlayback );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Could not initalize waveIn. Init failed hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
hr = InitializeRecordBuffer( hwnd, lpdvfInfo, *audioRecordDevice, audioRecordBuffer, dwFlags );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize waveIn buffer hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
}
else if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize record. hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
#endif
}
// Use specified device, just try and create the buffer
else
{
hr = InitializeRecordBuffer( hwnd, lpdvfInfo, *audioRecordDevice, audioRecordBuffer, dwFlags );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "Unable to initialize dsc buffer hr=0x%x", hr );
goto INIT_EXIT_ERROR;
}
}
DPFX(DPFPREP, DVF_INFOLEVEL, "> Rec Init 2" );
hr = SetPlaybackBufferToSilence( *audioPlaybackBuffer, lpwfxPlayFormat );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Unable to set playback to silence" );
goto INIT_EXIT_ERROR;
}
DPFX(DPFPREP, DVF_INFOLEVEL, "> Rec Init 3" );
// Depending on the ASO parameter start the playback buffer
// playing and the recording buffer recording.
if( aso )
{
DPFX(DPFPREP, DVF_INFOLEVEL, "> ASO " );
hr = (*audioPlaybackBuffer)->Play( dwPlayPriority, dwPlayFlags );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Can't play" );
goto INIT_EXIT_ERROR;
}
hr = (*audioRecordBuffer)->Record(TRUE);
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Can't start recording" );
goto INIT_EXIT_ERROR;
}
}
else
{
DPFX(DPFPREP, DVF_INFOLEVEL, "> !ASO " );
/* hr = (*audioRecordBuffer)->Record(TRUE);
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Can't start recording" );
goto INIT_EXIT_ERROR;
} */
hr = (*audioPlaybackBuffer)->Play( dwPlayPriority, dwPlayFlags );
if( FAILED( hr ) )
{
Diagnostics_Write( DVF_ERRORLEVEL, "> Can't play" );
goto INIT_EXIT_ERROR;
}
}
DPFX(DPFPREP, DVF_INFOLEVEL, "FULL DUPLEX INIT: End ==========" );
Diagnostics_Write( DVF_INFOLEVEL, "Full Duplex Init Result = DV_OK" );
return DV_OK;
INIT_EXIT_ERROR:
if( *audioRecordBuffer != NULL )
{
delete *audioRecordBuffer;
*audioRecordBuffer = NULL;
}
// Only delete on error if we allocated
if( fRecordDeviceAllocated && *audioRecordDevice != NULL )
{
delete *audioRecordDevice;
*audioRecordDevice = NULL;
}
// Only delete on error if we allocated
if( fPlaybackBufferAllocated && *audioPlaybackBuffer != NULL )
{
delete *audioPlaybackBuffer;
*audioPlaybackBuffer = NULL;
}
// Only delete on error if we allocated
if( fPlaybackDeviceAllocated && *audioPlaybackDevice != NULL )
{
delete *audioPlaybackDevice;
*audioPlaybackDevice = NULL;
}
Diagnostics_Write( DVF_ERRORLEVEL, "Full Duplex Init Result = 0x%x", hr );
return hr;
}
#undef DPF_MODNAME
#define DPF_MODNAME "FindPeak8Bit"
// FindPeak8Bit
//
// This function determines what the peak for a buffer
// of 8 bit audio is. Peak is defined as the loudest
// sample in a set of audio data rated on a scale of
// between 0 and 100.
//
// Parameters:
// BYTE *data -
// Pointer to the buffer containing the audio data
// to find the peak of.
// DWORD frameSize -
// The size in bytes of the audio data we are
// checking.
//
// Returns:
// BYTE -
// The peak of the audio buffer, a value between 0 and 100.
//
BYTE FindPeak8Bit( const BYTE *data, DWORD frameSize )
{
BYTE peak = 0;
int tmpData;
for( int index = 0; index < frameSize; index++ )
{
tmpData = data[index];
tmpData -= 0x80;
if( tmpData < 0 )
tmpData *= -1;
if( tmpData > peak )
{
peak = (unsigned char) tmpData;
}
}
tmpData = peak * 100 / 0x7F;
return (BYTE) tmpData;
}
#undef DPF_MODNAME
#define DPF_MODNAME "FindPeak16Bit"
// FindPeak16Bit
//
// This function determines what the peak for a buffer
// of 16 bit audio is. Peak is defined as the loudest
// sample in a set of audio data rated on a scale of
// between 0 and 100.
//
// Parameters:
// BYTE *data -
// Pointer to the buffer containing the audio data
// to find the peak of.
// DWORD frameSize -
// The size in bytes of the audio data we are
// checking.
//
// Returns:
// BYTE -
// The peak of the audio buffer, a value between 0 and 100.
//
BYTE FindPeak16Bit( const short *data, DWORD frameSize )
{
int peak,
tmpData;
frameSize /= 2;
peak = 0;
for( int index = 0; index < frameSize; index++ )
{
tmpData = data[index];
if( tmpData < 0 )
{
tmpData *= -1;
}
if( tmpData > peak )
{
peak = tmpData;
}
}
tmpData = (peak * 100) / 0x7FFF;
return (BYTE) tmpData;
}
#undef DPF_MODNAME
#define DPF_MODNAME "FindPeak"
// FindPeak
//
// This function determines what the peak for a buffer
// of 8 or 16 bit audio is. Peak is defined as the loudest
// sample in a set of audio data rated on a scale of
// between 0 and 100.
//
// Parameters:
// BYTE *data -
// Pointer to the buffer containing the audio data
// to find the peak of.
// DWORD frameSize -
// The size in bytes of the audio data we are
// checking.
// BOOL eightBit -
// Determins if the buffer is 8 bit or not. Set to
// TRUE for 8 bit data, FALSE for 16 bit data.
//
// Returns:
// BYTE -
// The peak of the audio buffer, a value between 0 and 100.
//
BYTE FindPeak( BYTE *data, DWORD frameSize, BOOL eightBit )
{
if( eightBit )
{
return FindPeak8Bit( data, frameSize );
}
else
{
return FindPeak16Bit( (signed short *) data, frameSize );
}
}