public IMFAttributes GetVideoAttributes()
{
IMFAttributes ia = null;
if (m_VideoNode != null)
{
HResult hr;
object o;
hr = m_VideoNode.GetObject(out o);
if (Succeeded(hr) && o != null)
{
IMFTransform t = o as IMFTransform;
if (t != null)
{
hr = t.GetAttributes(out ia);
//SafeRelease(t);
}
//SafeRelease(o);
}
}
return(ia);
}
internal PropertySet GetAttributes()
{
IMFAttributes attributes = null;
_mft.GetAttributes(out attributes);
return(PropSetFromAttributes(attributes));
}
protected void SetMixerSourceRect(IMFTransform pMixer, MFVideoNormalizedRect nrcSource)
{
if (pMixer == null)
{
throw new COMException("SetMixerSourceRect", E_Pointer);
}
int hr;
IMFAttributes pAttributes = null;
hr = pMixer.GetAttributes(out pAttributes);
MFError.ThrowExceptionForHR(hr);
Utils.MFSetBlob(pAttributes, MFAttributesClsid.VIDEO_ZOOM_RECT, nrcSource);
SafeRelease(pAttributes); pAttributes = null;
}