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CruxEternal

Direct X 9 and DirectShow Fliping WMV's in Fullscreen Mode

1 post in this topic

I am currently working on a Project that is using Havok's Vision Engine under Direct X 9 x86 under Windows Vista/7/8 and it requires the use of cutscenes to help convey the story of the game.

The Problem I'm encountering is when we attempt to play back our movies in Full Screen Mode using WMV's the videos flip themselves horizontally where the top is at the bottom and bottom is at the top. We believe this has to do with how Direct X handles its draws and as a result of us painting Direct Show Directly to the window it causes the video to flip.

Oddly enough this problem does not occur with AVI's, but we can't use AVI's due to their dated nature and DirectShow's strict enforcement of the AVI container.

I'll post code this evening when I get back to my workstation.

Technologies:
Direct X9
DirectShow 7.0
Havok Vision Engine
WMV: 720p 16:9 (Codec's I'll list later)
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So this is what I have thus far.
[source lang="cpp"] HRESULT PlayMedia(LPTSTR lpszMovie, HINSTANCE hInstance)
{
HRESULT hr = S_OK;
BOOL bSleep=TRUE;

/*if (!lpszMovie)
return E_POINTER;*/

// Allow DirectShow to create the FilterGraph for this media file
hr = pGB->RenderFile(L"C:\\MET.wmv", NULL);
if (FAILED(hr)) {
MessageBoxA(NULL, "Unable to to create FilterGraph, incorrect formating.", "Movie Render Error", MB_OK);
return hr;
}
//Maddness of Alex the Clown
HWND pInstance = Vision::Video.GetCurrentConfig()->m_hWnd;
hr = pVW->put_Owner((OAHWND)Vision::Video.GetCurrentConfig()->m_hWnd);

// Set the style of the video window


if(!Vision::Video.GetCurrentConfig()->m_bFullScreen)
{
hr = pVW->put_WindowStyle(WS_CHILD | WS_CLIPSIBLINGS);
// Get the size of the window
RECT rect;
GetClientRect((HWND)Vision::Video.GetCurrentConfig()->m_hWnd, &rect);

// Set the video size:
hr = pVW->SetWindowPosition(rect.left, rect.top, rect.right, rect.bottom);

}else{
// //->Flip( NULL, DDFLIP_WAIT);
// pGB->
}
// Set the message drain of the video window to point to our hidden
// application window. This allows keyboard input to be transferred
// to our main window for processing.
//
// If this is an audio-only or MIDI file, then put_MessageDrain will fail.
//
hr = pVW->put_MessageDrain((OAHWND) Vision::Video.GetCurrentConfig()->m_hWnd);
if (FAILED(hr))
{
MessageBoxA(NULL, "Unable to Render Video to Window.", "Movie Render Error", MB_OK);
return hr;
}

// Set fullscreen
if(Vision::Video.GetCurrentConfig()->m_bFullScreen)
{
hr = SetFullscreen();
if (FAILED(hr)) {
MessageBoxA (NULL, "Failed to run Full Screen.","Error Playing Cutscene",MB_OK);
return hr;
}
}

// Display first frame of the movie
hr = pMC->Pause();

if (FAILED(hr)) {
MessageBoxA(NULL, "Unable to pause Video.", "Movie Render Error", MB_OK);
return hr;
}

// Start playback
hr = pMC->Run();
if (FAILED(hr)) {
MessageBoxA(NULL, "Unable to Start Video.", "Movie Render Error", MB_OK);
return hr;
}

// Update state variables
g_bContinue = TRUE;

// Enter a loop of checking for events and sampling keyboard input

while (g_bContinue)
{
MSG msg;
long lEventCode;
LONG_PTR lpParam1, lpParam2;

// Reset sleep flag
bSleep = TRUE;

// Has there been a media event? Look for end of stream condition.
if(E_ABORT != pME->GetEvent(&lEventCode, &lpParam1,
&lpParam2, 0))
{
// Is this the end of the movie?
if (lEventCode == EC_COMPLETE)
{
g_bContinue = FALSE;
bSleep = FALSE;
}

// Free the media event resources
hr = pME->FreeEventParams(lEventCode, lpParam1, lpParam2);
if (FAILED(hr))
{
/*Msg(TEXT("Failed(%08lx) to free event params (%s)!\r\n"),
hr, lpszMovie);*/
MessageBoxA(NULL, "THIS HURTS YOU", "LISTEN TO YOURSELF YOU'RE INDOCTRINATED", MB_OK);
}
}

// Give system threads time to run (and don't sample user input madly)
if (bSleep)
Sleep(KEYBOARD_SAMPLE_FREQ);

// Check and process window messages (like our keystrokes)
while (PeekMessage (&msg, g_hwndMain, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}

return hr;
}
HRESULT GetInterfaces(void)
{
HRESULT hr = S_OK;

// Instantiate filter graph interface
//CLSID_FilterGraph
JIF(CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
IID_IGraphBuilder, (void **)&pGB));

// Get interfaces to control playback & screensize
JIF(pGB->QueryInterface(IID_IMediaControl, (void **)&pMC));
JIF(pGB->QueryInterface(IID_IVideoWindow, (void **)&pVW));
//MAYBE CODE

// Get interface to allow the app to wait for completion of playback
JIF(pGB->QueryInterface(IID_IMediaEventEx, (void **)&pME));

return S_OK;

// In case of failure, the helper macro jumps here
CLEANUP:
CleanupInterfaces();
return(hr);
}
[/source]
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