STDMETHODIMP MyPin::Receive(IMediaSample* pSample)
{
CAutoLock receiveLock(&m_receiveMutex);
{
CAutoLock objectLock(this);
if (m_state == State_Stopped)
return VFW_E_WRONG_STATE;
ReturnIfNotEquals(S_OK, CBaseInputPin::Receive(pSample));
if (m_SampleProps.dwSampleFlags & AM_SAMPLE_TYPECHANGED)
{
// TODO: don't recreate the device when possible
m_renderer.Finish(false, &m_bufferFilled);
ReturnIfFailed(SetMediaType(static_cast<CMediaType*>(m_SampleProps.pMediaType)));
}
if (m_eosUp)
return S_FALSE;
}
// Raise Receive() thread priority, once.
if (m_hReceiveThread != GetCurrentThread())
{
m_hReceiveThread = GetCurrentThread();
if (GetThreadPriority(m_hReceiveThread) < THREAD_PRIORITY_ABOVE_NORMAL)
SetThreadPriority(m_hReceiveThread, THREAD_PRIORITY_ABOVE_NORMAL);
}
// Push() returns 'false' in case of interruption.
return m_renderer.Push(pSample, m_SampleProps, &m_bufferFilled) ? S_OK : S_FALSE;
}
HRESULT MyPin::Inactive()
{
{
CAutoLock objectLock(this);
assert(m_state != State_Stopped);
m_state = State_Stopped;
CBaseInputPin::Inactive();
}
m_renderer.BeginFlush();
// Barrier for any present Receive() and EndOfStream() calls.
// Subsequent ones will be rejected because m_state == State_Stopped.
CAutoLock receiveLock(&m_receiveMutex);
m_bufferFilled.Reset();
{
CAutoLock objectLock(this);
m_eosUp = false;
m_eosDown = false;
}
m_hReceiveThread = NULL;
m_renderer.Stop();
m_renderer.EndFlush();
return S_OK;
}
STDMETHODIMP MyPin::BeginFlush()
{
// Parent method locks the object before modifying it, all is good.
CBaseInputPin::BeginFlush();
m_renderer.BeginFlush();
// Barrier for any present Receive() and EndOfStream() calls.
// Subsequent ones will be rejected because m_bFlushing == TRUE.
CAutoLock receiveLock(&m_receiveMutex);
m_bufferFilled.Reset();
{
CAutoLock objectLock(this);
m_eosUp = false;
m_eosDown = false;
}
m_hReceiveThread = NULL;
m_renderer.EndFlush();
return S_OK;
}
STDMETHODIMP MyPin::EndOfStream()
{
CAutoLock receiveLock(&m_receiveMutex);
{
CAutoLock objectLock(this);
if (m_state == State_Stopped)
return VFW_E_WRONG_STATE;
if (m_bFlushing)
return S_FALSE;
m_eosUp = true;
}
// We ask audio renderer to block until all samples are played.
// Finish() returns 'false' in case of interruption.
bool eosDown = m_renderer.Finish(true, &m_bufferFilled);
{
CAutoLock objectLock(this);
m_eosDown = eosDown;
if (m_eosDown)
m_pFilter->NotifyEvent(EC_COMPLETE, S_OK, (LONG_PTR)m_pFilter);
}
return S_OK;
}
STDMETHODIMP MyPin::NewSegment(REFERENCE_TIME startTime, REFERENCE_TIME stopTime, double rate)
{
CAutoLock receiveLock(&m_receiveMutex);
CAutoLock objectLock(this);
CBaseInputPin::NewSegment(startTime, stopTime, rate);
m_renderer.NewSegment(rate);
return S_OK;
}
STDMETHODIMP CMpTsFilter::Stop()
{
LogDebug("CMpTsFilter::Stop()");
CAutoLock filterLock(m_pLock);
LogDebug("Stop streaming...");
CAutoLock receiveLock(m_pReceiveLock);
LogDebug("Stop filter...");
int hr = CBaseFilter::Stop();
LogDebug("HRESULT = 0x%x", hr);
return hr;
}