112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
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//------------------------------------------------------------------------------
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// File: AMExtra.cpp
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//
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// Desc: DirectShow base classes - implements CRenderedInputPin class.
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//
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// Copyright (c) 1992-2001 Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------------------------
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#include <streams.h> // DirectShow base class definitions
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#include <mmsystem.h> // Needed for definition of timeGetTime
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#include <limits.h> // Standard data type limit definitions
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#include <measure.h> // Used for time critical log functions
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#include "amextra.h"
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#pragma warning(disable:4355)
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// Implements CRenderedInputPin class
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CRenderedInputPin::CRenderedInputPin(TCHAR *pObjectName,
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CBaseFilter *pFilter,
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CCritSec *pLock,
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HRESULT *phr,
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LPCWSTR pName) :
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CBaseInputPin(pObjectName, pFilter, pLock, phr, pName),
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m_bAtEndOfStream(FALSE),
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m_bCompleteNotified(FALSE)
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{
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}
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#ifdef UNICODE
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CRenderedInputPin::CRenderedInputPin(CHAR *pObjectName,
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CBaseFilter *pFilter,
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CCritSec *pLock,
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HRESULT *phr,
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LPCWSTR pName) :
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CBaseInputPin(pObjectName, pFilter, pLock, phr, pName),
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m_bAtEndOfStream(FALSE),
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m_bCompleteNotified(FALSE)
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{
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}
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#endif
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// Flush end of stream condition - caller should do any
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// necessary stream level locking before calling this
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STDMETHODIMP CRenderedInputPin::EndOfStream()
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{
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HRESULT hr = CheckStreaming();
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// Do EC_COMPLETE handling for rendered pins
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if (S_OK == hr && !m_bAtEndOfStream) {
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m_bAtEndOfStream = TRUE;
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FILTER_STATE fs;
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EXECUTE_ASSERT(SUCCEEDED(m_pFilter->GetState(0, &fs)));
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if (fs == State_Running) {
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DoCompleteHandling();
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}
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}
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return hr;
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}
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// Called to complete the flush
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STDMETHODIMP CRenderedInputPin::EndFlush()
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{
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CAutoLock lck(m_pLock);
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// Clean up renderer state
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m_bAtEndOfStream = FALSE;
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m_bCompleteNotified = FALSE;
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return CBaseInputPin::EndFlush();
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}
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// Notify of Run() from filter
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HRESULT CRenderedInputPin::Run(REFERENCE_TIME tStart)
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{
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UNREFERENCED_PARAMETER(tStart);
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m_bCompleteNotified = FALSE;
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if (m_bAtEndOfStream) {
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DoCompleteHandling();
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}
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return S_OK;
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}
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// Clear status on going into paused state
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HRESULT CRenderedInputPin::Active()
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{
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m_bAtEndOfStream = FALSE;
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m_bCompleteNotified = FALSE;
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return CBaseInputPin::Active();
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}
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// Do stuff to deliver end of stream
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void CRenderedInputPin::DoCompleteHandling()
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{
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ASSERT(m_bAtEndOfStream);
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if (!m_bCompleteNotified) {
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m_bCompleteNotified = TRUE;
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m_pFilter->NotifyEvent(EC_COMPLETE, S_OK, (LONG_PTR)(IBaseFilter *)m_pFilter);
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}
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}
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