/*++
Description:
Debug message printer to print the message passed through WPP
--*/
void printMessageEvent(MFT_MESSAGE_TYPE msg)
{
switch (msg)
{
case MFT_MESSAGE_COMMAND_FLUSH:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_COMMAND_FLUSH");
break;
case MFT_MESSAGE_COMMAND_DRAIN:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_COMMAND_DRAIN");
break;
case MFT_MESSAGE_COMMAND_MARKER:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_COMMAND_MARKER");
break;
case MFT_MESSAGE_COMMAND_TICK:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_COMMAND_TICK");
break;
case MFT_MESSAGE_NOTIFY_END_OF_STREAM:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_NOTIFY_END_OF_STREAM");
break;
case MFT_MESSAGE_NOTIFY_BEGIN_STREAMING:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_NOTIFY_BEGIN_STREAMING");
break;
case MFT_MESSAGE_NOTIFY_START_OF_STREAM:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_NOTIFY_START_OF_STREAM");
break;
case MFT_MESSAGE_DROP_SAMPLES:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_DROP_SAMPLES");
break;
case MFT_MESSAGE_SET_D3D_MANAGER:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! :PROCESSMESSAGE: MFT_MESSAGE_SET_D3D_MANAGER");
break;
}
}
//
// Process input calls the pin here.. In this code sample we
// don't send it anywhere. It is simply shortcircuited back to the pipeline
//
STDMETHODIMP CCustomPin::SendSample(
_In_ IMFSample *pSample
)
{
//
// Log sample and exit.. The pipeline will just keep on churning more samples till
// We go into the stop state
//
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! Custom Pin %d recieved Sample %p", streamId(), pSample);
return S_OK;
}
STDMETHODIMP_(DeviceStreamState) CCustomPin::SetState(
_In_ DeviceStreamState State
)
{
HRESULT hr = S_OK;
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! Id:%d Transition into state: %d ", streamId(), State);
DeviceStreamState oldState = setPreferredStreamState( State );
if ( oldState != State )
{
ComPtr<IMFMediaType> preferredMediaType = nullptr;
if (State == DeviceStreamState_Run)
{
GetMediaTypeAt(0, preferredMediaType.ReleaseAndGetAddressOf());
}
setPreferredMediaType(preferredMediaType.Get());
setPreferredStreamState( State );
{
//
// Notify the device transform manager that we have changed state
//
ComPtr<IMFMediaEvent> pEvent = nullptr;
DMFTCHECKHR_GOTO( MFCreateMediaEvent(METransformInputStreamStateChanged, GUID_NULL, S_OK, NULL, pEvent.ReleaseAndGetAddressOf()), done );
DMFTCHECKHR_GOTO( pEvent->SetUINT32(MF_EVENT_MFT_INPUT_STREAM_ID, streamId()), done );
DMFTCHECKHR_GOTO( Parent()->QueueEvent(pEvent.Get()), done );
}
//
// Wait to be notified back from the pipeline.
//
DMFTCHECKHR_GOTO( WaitForSetInputPinMediaChange(),done );
}
done:
DMFTRACE(DMFT_GENERAL, TRACE_LEVEL_INFORMATION, "%!FUNC! exiting %x = %!HRESULT!", hr, hr);
return oldState;
}
