C++ (Cpp) IMediaSeekingPtr::QueryPreferredFormat Examples

Example #1

File: vp8encoderoutpinvideo.cpp Project: kazutomi/xiphqt

HRESULT OutpinVideo::QueryPreferredFormat(GUID* p)
{
    Filter::Lock lock;

    HRESULT hr = lock.Seize(m_pFilter);

    if (FAILED(hr))
        return hr;

    if (!bool(m_pPinConnection))
        return VFW_E_NOT_CONNECTED;

    const Inpin& inpin = m_pFilter->m_inpin;
    const GraphUtil::IMediaSeekingPtr pSeek(inpin.m_pPinConnection);

    if (bool(pSeek))
    {
        lock.Release();
        return pSeek->QueryPreferredFormat(p);
    }

    if (p == 0)
        return E_POINTER;

    *p = TIME_FORMAT_MEDIA_TIME;
    return S_OK;
}

Example #2

File: vp8decoderoutpin.cpp Project: roh0sun/webmdshow

HRESULT Outpin::QueryPreferredFormat(GUID* p) {
  const Inpin& inpin = m_pFilter->m_inpin;
  const GraphUtil::IMediaSeekingPtr pSeek(inpin.m_pPinConnection);

  if (bool(pSeek))
    return pSeek->QueryPreferredFormat(p);

  if (p == 0)
    return E_POINTER;

  *p = TIME_FORMAT_MEDIA_TIME;
  return S_OK;
}