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880 lines
25 KiB
880 lines
25 KiB
/*++
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Copyright (c) 1998-1999 Microsoft Corporation
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Module Name:
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msptrmar.cpp
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Abstract:
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MSP base classes: implementation of audio render terminal.
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--*/
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#include "precomp.h"
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#pragma hdrstop
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#include <mmsystem.h>
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// Filter volume level ranges
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const long AX_MIN_VOLUME = -9640; // -10000;
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const long AX_MAX_VOLUME = 0;
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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CAudioRenderTerminal::CAudioRenderTerminal()
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{
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m_TerminalDirection = TD_RENDER;
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m_TerminalType = TT_STATIC;
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m_szName[0] = L'\0'; // real name is copied in on creation
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m_bResourceReserved = false;
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LOG((MSP_TRACE, "CAudioRenderTerminal::CAudioRenderTerminal() finished"));
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}
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CAudioRenderTerminal::~CAudioRenderTerminal()
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::~CAudioRenderTerminal() finished"));
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// This function determines if the terminal associated with a given
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// moniker is "good". A good terminal returns S_OK; a bad terminal returns an
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// error.
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//
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// A good terminal has the following properties:
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// * has a friendly name
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// * is not a WAVE_MAPPER terminal
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// * is not a DirectSound terminal (unless USE_DIRECT_SOUND is pound-defined)
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//
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static inline HRESULT TerminalAllowed(IMoniker * pMoniker)
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{
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HRESULT hr;
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CComPtr<IPropertyBag> pBag;
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hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pBag);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "audio render TerminalAllowed (IMoniker::BindToStorage) "
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"- returning %8x", hr));
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return hr;
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}
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VARIANT var;
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// we make sure creation is not going to fail on
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// account of a nonexistent friendly name
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VariantInit(&var);
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var.vt = VT_BSTR;
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hr = pBag->Read(L"FriendlyName", &var, 0);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "audio render TerminalAllowed "
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"(IPropertyBag::Read on FriendlyName) - got %8x; skipping terminal", hr));
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return hr;
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}
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// Fix for memory leak!
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SysFreeString(var.bstrVal);
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// NOTE: Magic code selects only wave devices
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VariantInit(&var);
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var.vt = VT_I4;
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hr = pBag->Read(L"WaveOutId", &var, 0);
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if (hr != S_OK)
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{
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#ifndef USE_DIRECT_SOUND
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// This is most likely a DirectSound terminal
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LOG((MSP_WARN, "audio render TerminalAllowed - "
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"this is a DirectSound terminal "
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"so we are skipping it - note that this is a routine "
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"occurance - returning %8x", hr));
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#else // we do use DirectSound
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return S_OK;
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#endif
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}
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else if (var.lVal == WAVE_MAPPER)
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{
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// hack: if the value is equal to WAVE_MAPPER then don't use it....
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hr = E_FAIL; // random failure code :)
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LOG((MSP_WARN, "audio render TerminalAllowed - "
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"this is a WAVE_MAPPER terminal "
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"so we are skipping it - note that this is a routine "
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"occurance - returning %8x", hr));
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}
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return hr;
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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HRESULT CAudioRenderTerminal::CreateTerminal(
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IN CComPtr<IMoniker> pMoniker,
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IN MSP_HANDLE htAddress,
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OUT ITTerminal **ppTerm
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)
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{
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// Enable ATL string conversion macros.
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USES_CONVERSION;
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LOG((MSP_TRACE, "CAudioRenderTerminal::CreateTerminal - enter"));
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//
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// Validate the parameters
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//
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if ( MSPB_IsBadWritePtr(ppTerm, sizeof(ITTerminal *) ) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateTerminal : "
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"bad terminal pointer; returning E_POINTER"));
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return E_POINTER;
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}
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if ( IsBadReadPtr(pMoniker, sizeof(IMoniker) ) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateTerminal : "
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"bad moniker pointer; returning E_POINTER"));
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return E_POINTER;
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}
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//
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// We return a NULL terminal if we fail.
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//
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*ppTerm = NULL;
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HRESULT hr;
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// Refuse to work with DirectSound or WAVE_MAPPER terminals.
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// or if we can't read the friendlyName...
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if (FAILED(hr = TerminalAllowed(pMoniker))) return hr;
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//
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// Get the name for this filter out of the property bag.
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//
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CComPtr<IPropertyBag> pBag;
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hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pBag);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateTerminal (IMoniker::BindToStorage) - returning %8x", hr));
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return hr;
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}
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VARIANT var;
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VariantInit(&var);
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var.vt = VT_BSTR;
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hr = pBag->Read(L"FriendlyName", &var, 0);
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if (FAILED(hr))
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{
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LOG((MSP_WARN, "CAudioRenderTerminal::CreateTerminal "
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"(IPropertyBag::Read) - got %8x - we are therefore skipping "
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"this terminal; note that this is fairly routine", hr));
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return hr;
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}
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//
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// Create the terminal.
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//
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CMSPComObject<CAudioRenderTerminal> *pLclTerm = new CMSPComObject<CAudioRenderTerminal>;
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if (pLclTerm == NULL)
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateTerminal - returning E_OUTOFMEMORY"));
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return E_OUTOFMEMORY;
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}
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//
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// Save some stuff in the terminal.
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//
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pLclTerm->m_pMoniker = pMoniker;
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lstrcpyn(pLclTerm->m_szName, OLE2T(var.bstrVal), MAX_PATH);
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SysFreeString(var.bstrVal);
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//
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// Get the ITTerminal interface that we were asked for.
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//
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hr = pLclTerm->_InternalQueryInterface(IID_ITTerminal, (void**)ppTerm);
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if ( FAILED(hr) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateTerminal - "
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"Internal QI failed; returning 0x%08x", hr));
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delete pLclTerm;
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*ppTerm = NULL; // just in case
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return hr;
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}
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//
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// Finish initializing the terminal.
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//
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hr = pLclTerm->Initialize(CLSID_SpeakersTerminal,
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TAPIMEDIATYPE_AUDIO,
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TD_RENDER,
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htAddress
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);
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if ( FAILED(hr) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateTerminal - "
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"Initialize failed; returning 0x%08x", hr));
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(*ppTerm)->Release();
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*ppTerm = NULL; // just in case
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return hr;
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}
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LOG((MSP_TRACE, "CAudioRenderTerminal::CreateTerminal - exit S_OK"));
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return S_OK;
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// Create the filters used by this terminal
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HRESULT CAudioRenderTerminal::CreateFilters()
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::CreateFilters - enter"));
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HRESULT hr;
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//
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// We used to recreate the audio render filter every time, but we don't
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// have any real reason for doing so. Just return S_OK if the filter
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// has already been created.
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//
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if ( m_pIFilter != NULL )
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{
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_ASSERTE( m_pIPin != NULL );
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LOG((MSP_TRACE, "CAudioRenderTerminal::CreateFilters - "
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"filter already created - exit S_OK"));
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return S_OK;
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}
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_ASSERTE ( m_pIBasicAudio == NULL );
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_ASSERTE ( m_pIPin == NULL );
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//
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// Sanity checks.
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//
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if ( m_pMoniker == NULL )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateFilters - "
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"no moniker present - returning E_UNEXPECTED"));
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return E_UNEXPECTED;
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}
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//
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// Create a new instance of the filter.
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//
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hr = m_pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&m_pIFilter);
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if ( FAILED(hr) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateFilters - "
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"BindToObject failed; returning %8x", hr));
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return hr;
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}
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//
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// Get the basic audio interface for the filter. If it doesn't exist, we
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// can live with that, but all our IBasicAudio methods will fail.
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//
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hr = m_pIFilter->QueryInterface(IID_IBasicAudio,
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(void **) &m_pIBasicAudio);
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if ( FAILED(hr) )
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{
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LOG((MSP_WARN, "CAudioRenderTerminal::CreateFilters - "
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"QI for IBasicAudio failed: %8x", hr));
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}
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hr = FindTerminalPin();
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if ( FAILED(hr) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CreateFilters - "
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"FindTerminalPin failed; returning 0x%08x", hr));
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m_pIFilter = NULL; // does an implicit release
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if ( m_pIBasicAudio )
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{
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m_pIBasicAudio = NULL; // does an implicit release
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}
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return hr;
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}
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LOG((MSP_TRACE, "CAudioRenderTerminal::CreateFilters - exit S_OK"));
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return S_OK;
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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HRESULT
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CAudioRenderTerminal::FindTerminalPin(
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)
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::FindTerminalPin - enter"));
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//
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// Sanity checks so we don't AV.
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//
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if (m_pIPin != NULL)
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::FindTerminalPin - "
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"we've already got a pin; exit E_UNEXPECTED"));
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return E_UNEXPECTED;
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}
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if (m_pIFilter == NULL)
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::FindTerminalPin - "
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"we don't have a filter; exit E_UNEXPECTED"));
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return E_UNEXPECTED;
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}
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HRESULT hr;
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CComPtr<IEnumPins> pIEnumPins;
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ULONG cFetched;
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//
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// Find the render pin for the filter.
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//
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hr = m_pIFilter->EnumPins(&pIEnumPins);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR,
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"CAudioRenderTerminal::FindTerminalPin - can't enum pins 0x%08x",
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hr));
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return hr;
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}
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IPin * pIPin;
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// Enumerate all the pins and break on the
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// first pin that meets requirement.
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for (;;)
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{
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if (pIEnumPins->Next(1, &pIPin, &cFetched) != S_OK)
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{
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LOG((MSP_ERROR,
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"CAudioRenderTerminal::FindTerminalPin - can't get a pin %8x",
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hr));
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return (hr == S_FALSE) ? E_FAIL : hr;
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}
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if (0 == cFetched)
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::FindTerminalPin - got zero pins"));
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return E_FAIL;
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}
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PIN_DIRECTION dir;
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if (FAILED(hr = pIPin->QueryDirection(&dir)))
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{
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LOG((MSP_ERROR,
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"CAudioRenderTerminal::FindTerminalPin - can't query pin direction %8x",
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hr));
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pIPin->Release();
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return hr;
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}
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if (PINDIR_INPUT == dir)
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{
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break;
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}
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pIPin->Release();
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}
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m_pIPin = pIPin;
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LOG((MSP_TRACE, "CAudioRenderTerminal::FindTerminalPin - exit S_OK"));
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return S_OK;
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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HRESULT CAudioRenderTerminal::AddFiltersToGraph(
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)
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::AddFiltersToGraph - enter"));
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if (m_pGraph == NULL)
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::AddFiltersToGraph - "
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"haven't got a filter graph; return E_UNEXPECTED"));
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return E_UNEXPECTED;
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}
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//
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// Create the filters if this is the first connection with this terminal.
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//
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HRESULT hr = CreateFilters();
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if ( FAILED(hr) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::AddFiltersToGraph - "
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"CreateFilters failed; returning 0x%08x", hr));
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return hr;
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}
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//
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// Add the filter to the graph.
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//
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// A word about names:
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// If a filter has already been added with the same name (which will
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// happen if we have more than one audio render terminal in the same
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// graph) then that will return VFW_S_DUPLICATE_NAME, which is not
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// a failure.
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//
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hr = m_pGraph->AddFilter(m_pIFilter, WAVEOUT_NAME);
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if ( FAILED(hr) )
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::AddFiltersToGraph - "
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"returning 0x%08x", hr));
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return hr;
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}
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LOG((MSP_TRACE, "CAudioRenderTerminal::AddFiltersToGraph - exit S_OK"));
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return S_OK;
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}
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//////////////////////////////////////////////////////////////////////////////
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// we override this here so we can do some stuff
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// right after the filter gets connected
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STDMETHODIMP CAudioRenderTerminal::CompleteConnectTerminal(void)
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::CompleteConnectTerminal - enter"));
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// By default, we need not unreserve later.
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m_bResourceReserved = false;
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// Don't clobber the base class' machinations (currently nothing...)
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HRESULT hr = CSingleFilterTerminal::CompleteConnectTerminal();
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if (FAILED(hr))
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{
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LOG((MSP_TRACE, "CAudioRenderTerminal::CompleteConnectTerminal: "
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"CSingleFilterTerminal method failed"));
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return hr;
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}
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// So here we are, after our filter has been added to the filter graph and connected up.
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// We need to use the filter's
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// IAMResourceControl::Reserve method to make sure the filter opens the waveOut device
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// now (and keeps it open).
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//////////////////////////////////////////////////////////////////////////
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// we must inform the filter that we want it to grab the wave device.
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// We do this after connecting because the filter needs to negotiate the
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// media type before it can open a wave device.
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CComPtr <IAMResourceControl> pIResource;
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hr = m_pIFilter->QueryInterface(IID_IAMResourceControl, (void **) &pIResource);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CompleteConnectTerminal - QI failed: %8x", hr));
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// This is a nonesential operation so we do not fail.
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return S_OK;
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}
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// The QueryInterface didn't fail...
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hr = pIResource->Reserve(AMRESCTL_RESERVEFLAGS_RESERVE, NULL);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "CAudioRenderTerminal::CompleteConnectTerminal - "
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"device reservation failed: %8x", hr));
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return hr;
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}
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else if (hr == S_FALSE)
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{
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// Well, in this case either another application is already using the wave out device,
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// or we are running half-duplex and we've got both wavein and waveout terminals
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// selected.
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LOG((MSP_ERROR, "CAudioRenderTerminal::CompleteConnectTerminal - "
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"device already in use: %8x", hr));
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return hr;
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} // {if the driver is half-duplex}
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// We have succeeded in reserving, so we will want to unreserve later.
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m_bResourceReserved = true;
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LOG((MSP_TRACE, "CAudioRenderTerminal::CompleteConnectTerminal - exit S_OK"));
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return S_OK;
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}
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//////////////////////////////////////////////////////////////////////////////////
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// We override this here so we can unreserve the resource when we are done.
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// removes filters from the filter graph and resets member variables
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// Disconnect may be called anytime after Connect succeeds (it need not be called
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// if CompleteConnect fails)
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STDMETHODIMP CAudioRenderTerminal::DisconnectTerminal(
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IN IGraphBuilder * pGraph,
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IN DWORD dwReserved
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)
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{
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::DisconnectTerminal - enter"));
|
|
|
|
HRESULT hr;
|
|
|
|
//
|
|
// First call the base class method, to make sure we validate everything
|
|
// and don't mess with our resource reservation unless this is a valid
|
|
// disconnection (e.g., the filter graph pointersmatch).
|
|
//
|
|
|
|
hr = CSingleFilterTerminal::DisconnectTerminal(pGraph, dwReserved);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::DisconnectTerminal : "
|
|
"CSingleFilterTerminal method failed; hr = %d", hr));
|
|
return hr;
|
|
}
|
|
|
|
// if we need to release the resource
|
|
if (m_bResourceReserved)
|
|
{
|
|
CComPtr <IAMResourceControl> pIResource;
|
|
|
|
hr = m_pIFilter->QueryInterface(IID_IAMResourceControl, (void **) &pIResource);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::DisconnectTerminal - QI failed: %8x", hr));
|
|
|
|
// This is a nonesential operation so we do not "return hr;" here.
|
|
}
|
|
else
|
|
{
|
|
// QueryInterface didn't fail, and we have reserved WaveOut, so we must
|
|
// unreserve now.
|
|
|
|
hr = pIResource->Reserve(AMRESCTL_RESERVEFLAGS_UNRESERVE, NULL);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::DisconnectTerminal - "
|
|
"device unreservation failed: %8x", hr));
|
|
// no reason to completely die at this point, so we just continue
|
|
}
|
|
|
|
// if other things fail we may be called again, but we should not try
|
|
// to unreserve again.
|
|
m_bResourceReserved = false;
|
|
|
|
} // {if QI succeeded}
|
|
} // {if need to release resource}
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::DisconnectTerminal - exit S_OK"));
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
|
|
// private helper method:
|
|
|
|
static HRESULT RangeConvert(long lInput,
|
|
long lInputMin,
|
|
long lInputMax,
|
|
long * plOutput,
|
|
long lOutputMin,
|
|
long lOutputMax)
|
|
{
|
|
_ASSERTE( lInputMin < lInputMax );
|
|
_ASSERTE( lOutputMin < lOutputMax );
|
|
_ASSERTE( ! MSPB_IsBadWritePtr(plOutput, sizeof(long)) );
|
|
|
|
if (lInput < lInputMin)
|
|
{
|
|
LOG((MSP_ERROR, "RangeConvert - value out of range - "
|
|
"%d < %d; returning E_INVALIDARG",
|
|
lInput, lInputMin));
|
|
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
if (lInput > lInputMax)
|
|
{
|
|
LOG((MSP_ERROR, "RangeConvert - value out of range - "
|
|
"%d > %d; returning E_INVALIDARG",
|
|
lInput, lInputMax));
|
|
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
// This is how much we are going to expand the range of the input.
|
|
double dRangeWidthRatio = (double) (lOutputMax - lOutputMin) /
|
|
(double) (lInputMax - lInputMin);
|
|
|
|
*plOutput = (long) ((lInput - lInputMin) * dRangeWidthRatio) + lOutputMin;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
|
|
STDMETHODIMP CAudioRenderTerminal::get_Volume(long * plVolume)
|
|
{
|
|
CLock lock(m_CritSec);
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::get_Volume - enter"));
|
|
|
|
//
|
|
// Parameter checks.
|
|
//
|
|
|
|
if ( MSPB_IsBadWritePtr(plVolume, sizeof(long)) )
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_Volume - "
|
|
"bad pointer argument"));
|
|
return E_POINTER;
|
|
}
|
|
|
|
if (m_pIBasicAudio == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_Volume - "
|
|
"don't have necessary interface - exit E_FAIL"));
|
|
return E_FAIL;
|
|
}
|
|
|
|
//
|
|
// Let the filter do the work.
|
|
//
|
|
|
|
HRESULT hr = m_pIBasicAudio->get_Volume(plVolume);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_Volume - "
|
|
"filter call failed: %08x", hr));
|
|
return hr;
|
|
}
|
|
|
|
//
|
|
// Asjust the range of the value returned to match the range specified
|
|
// by the TAPI APIs.
|
|
//
|
|
|
|
hr = RangeConvert(*plVolume, AX_MIN_VOLUME, AX_MAX_VOLUME,
|
|
plVolume, 0, 0xFFFF);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_Volume - "
|
|
"RangeConvert call failed: %08x", hr));
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::get_Volume - exit S_OK"));
|
|
return S_OK;
|
|
}
|
|
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
|
|
STDMETHODIMP CAudioRenderTerminal::put_Volume(long lVolume)
|
|
{
|
|
CLock lock(m_CritSec);
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::put_Volume - enter"));
|
|
|
|
if (m_pIBasicAudio == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::put_Volume - "
|
|
"don't have necessary interface - exit E_FAIL"));
|
|
return E_FAIL;
|
|
}
|
|
|
|
//
|
|
// Asjust the range of the value returned to match the range needed
|
|
// by the WaveOut filter.
|
|
//
|
|
|
|
HRESULT hr = RangeConvert(lVolume, 0, 0xFFFF,
|
|
&lVolume, AX_MIN_VOLUME, AX_MAX_VOLUME);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::put_Volume - "
|
|
"RangeConvert call failed: %08x", hr));
|
|
return hr;
|
|
}
|
|
|
|
//
|
|
// Let the filter do the work.
|
|
//
|
|
|
|
hr = m_pIBasicAudio->put_Volume(lVolume);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::put_Volume - "
|
|
"filter call failed: %08x", hr));
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::put_Volume - exit S_OK"));
|
|
return S_OK;
|
|
}
|
|
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
|
|
STDMETHODIMP CAudioRenderTerminal::get_Balance(long * plBalance)
|
|
{
|
|
HRESULT hr = E_NOTIMPL;
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::get_Balance - enter"));
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::get_Balance - exit 0x%08x", hr));
|
|
|
|
return hr;
|
|
}
|
|
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
|
|
STDMETHODIMP CAudioRenderTerminal::put_Balance(long lBalance)
|
|
{
|
|
HRESULT hr = E_NOTIMPL;
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::put_Balance - enter"));
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::put_Balance - exit 0x%08x", hr));
|
|
|
|
return hr;
|
|
}
|
|
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
|
|
STDMETHODIMP
|
|
CAudioRenderTerminal::get_WaveId(
|
|
OUT long * plWaveId
|
|
)
|
|
{
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::get_WaveId - enter"));
|
|
|
|
CLock lock(m_CritSec);
|
|
|
|
//
|
|
// Parameter checks.
|
|
//
|
|
|
|
if ( MSPB_IsBadWritePtr(plWaveId, sizeof(long)) )
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_WaveId - "
|
|
"bad pointer argument"));
|
|
|
|
return E_POINTER;
|
|
}
|
|
|
|
//
|
|
// Check the moniker pointer.
|
|
//
|
|
|
|
if ( IsBadReadPtr( m_pMoniker, sizeof(IMoniker) ) )
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_WaveId - "
|
|
"bad moniker pointer - exit E_UNEXPECTED"));
|
|
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
//
|
|
// Get a property bag from the moniker.
|
|
//
|
|
|
|
IPropertyBag * pBag;
|
|
|
|
HRESULT hr = m_pMoniker->BindToStorage(0,
|
|
0,
|
|
IID_IPropertyBag,
|
|
(void **) &pBag);
|
|
|
|
if ( FAILED(hr) )
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_WaveId - "
|
|
"can't get property bag - exit 0x%08x", hr));
|
|
|
|
return hr;
|
|
}
|
|
|
|
//
|
|
// Get the ID from the property bag.
|
|
//
|
|
|
|
VARIANT var;
|
|
|
|
var.vt = VT_I4;
|
|
|
|
hr = pBag->Read(
|
|
L"WaveOutId",
|
|
&var,
|
|
0);
|
|
|
|
pBag->Release();
|
|
|
|
if ( FAILED(hr) )
|
|
{
|
|
LOG((MSP_ERROR, "CAudioRenderTerminal::get_WaveId - "
|
|
"can't read wave ID - exit 0x%08x", hr));
|
|
|
|
return hr;
|
|
}
|
|
|
|
*plWaveId = (long) var.lVal;
|
|
|
|
LOG((MSP_TRACE, "CAudioRenderTerminal::get_WaveId - exit S_OK"));
|
|
|
|
return S_OK;
|
|
}
|
|
|