C++ (Cpp) IVideoFrameStep Examples

Example #1

File: vcdplyer.cpp Project: Essjay1/Windows-classic-samples

/******************************Public*Routine******************************\
* CanMovieFrameStep
*
\**************************************************************************/
BOOL
CMovie::CanMovieFrameStep()
{
    IVideoFrameStep* lpFS;
    HRESULT hr;

    hr = m_Fg->QueryInterface(__uuidof(IVideoFrameStep), (LPVOID *)&lpFS);
    if(SUCCEEDED(hr))
    {
        hr = lpFS->CanStep(0L, NULL);
        lpFS->Release();
    }

    return SUCCEEDED(hr);
}

Example #2

File: vcdplyer.cpp Project: Essjay1/Windows-classic-samples

/******************************Public*Routine******************************\
* FrameStepMovie
*
\**************************************************************************/
BOOL
CMovie::FrameStepMovie()
{
    IVideoFrameStep* lpFS;
    HRESULT hr;

    hr = m_Fg->QueryInterface(__uuidof(IVideoFrameStep), (LPVOID *)&lpFS);
    if(SUCCEEDED(hr))
    {
        FrameStepCount++;

        hr = lpFS->Step(1, NULL);
        lpFS->Release();
    }

    return SUCCEEDED(hr);
}

Example #3

File: MediaPlayerDlg.cpp Project: malpharo/AiPI

//
// Some hardware decoders and video renderers support stepping media
// frame by frame with the IVideoFrameStep interface.  See the interface
// documentation for more details on frame stepping.
//
BOOL CMediaPlayerDlg::CanStep(void)
{
    HRESULT hr;
    IVideoFrameStep* pFS;

    hr = pGB_MP->QueryInterface(__uuidof(IVideoFrameStep), (PVOID *)&pFS);
    if (FAILED(hr))
        return FALSE;

    // Check if this decoder can step
    hr = pFS->CanStep(0L, NULL);

    pFS->Release();

    if (hr == S_OK)
        return TRUE;
    else
        return FALSE;
}

Example #4

File: dshowutil.cpp Project: shilinxu/iprojects

//
// Some hardware decoders and video renderers support stepping media
// frame by frame with the IVideoFrameStep interface.  See the interface
// documentation for more details on frame stepping.
//
BOOL CanFrameStep(IGraphBuilder *pGB)
{
    HRESULT hr;
    IVideoFrameStep* pFS;

    hr = pGB->QueryInterface(__uuidof(IVideoFrameStep), (PVOID *)&pFS);
    if (FAILED(hr))
        return FALSE;

    // Check if this decoder can step
    hr = pFS->CanStep(0L, NULL);

    pFS->Release();

    if (hr == S_OK)
        return TRUE;
    else
        return FALSE;
}

Example #5

File: Vcdplyer.cpp Project: adamjoniec/theimp

/******************************Public*Routine******************************\
* FrameStepMovie
*
\**************************************************************************/
BOOL
CMpegMovie::FrameStepMovie()
{
	if ( m_Vw ) {

		return E_FAIL;

	}	else {


    IVideoFrameStep* lpFS;
    HRESULT hr;

    hr = m_Fg->QueryInterface(__uuidof(IVideoFrameStep), (LPVOID *)&lpFS);
    if(SUCCEEDED(hr))
    {
        hr = lpFS->Step(1, NULL);
        lpFS->Release();
    }

    return SUCCEEDED(hr);
	}
}

Example #6

File: playwndasf.cpp Project: chinajeffery/dx_sdk

//
// Some video renderers support stepping media frame by frame with the 
// IVideoFrameStep interface.  See the interface documentation for more 
// details on frame stepping.
//
BOOL GetFrameStepInterface(void)
{
    HRESULT hr;
    IVideoFrameStep *pFSTest = NULL;

    // Get the frame step interface, if supported
    hr = pGB->QueryInterface(__uuidof(IVideoFrameStep), (PVOID *)&pFSTest);
    if (FAILED(hr))
        return FALSE;

    // Check if this decoder can step
    hr = pFSTest->CanStep(0L, NULL); 

    if (hr == S_OK)
    {
        pFS = pFSTest;  // Save interface to global variable for later use
        return TRUE;
    }
    else
    {
        pFSTest->Release();
        return FALSE;
    }
}