MacrovisionKicker.cpp

/* 
 *      Copyright (C) 2003-2005 Gabest
 *      http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#include "stdafx.h"
#include "MacrovisionKicker.h"

//
// CMacrovisionKicker
//

CMacrovisionKicker::CMacrovisionKicker(const TCHAR* pName, LPUNKNOWN pUnk)
        : CUnknown(pName, pUnk)
{
}

CMacrovisionKicker::~CMacrovisionKicker()
{
}

void CMacrovisionKicker::SetInner(CComPtr<IUnknown> pUnk)
{
        m_pInner = pUnk;
}

STDMETHODIMP CMacrovisionKicker::NonDelegatingQueryInterface(REFIID riid, void** ppv)
{
        if(riid == __uuidof(IUnknown))
                return __super::NonDelegatingQueryInterface(riid, ppv);
        if(riid == __uuidof(IKsPropertySet) && CComQIPtr<IKsPropertySet>(m_pInner))
                return GetInterface((IKsPropertySet*)this, ppv);

        HRESULT hr = m_pInner ? m_pInner->QueryInterface(riid, ppv) : E_NOINTERFACE;

        return SUCCEEDED(hr) ? hr : __super::NonDelegatingQueryInterface(riid, ppv);
}

// IKsPropertySet

STDMETHODIMP CMacrovisionKicker::Set(REFGUID PropSet, ULONG Id, LPVOID pInstanceData, ULONG InstanceLength, LPVOID pPropertyData, ULONG DataLength)
{
        if(CComQIPtr<IKsPropertySet> pKsPS = m_pInner)
        {
                if(PropSet == AM_KSPROPSETID_CopyProt && Id == AM_PROPERTY_COPY_MACROVISION
                /*&& DataLength == 4 && *(DWORD*)pPropertyData*/)
                {
                        TRACE(_T("Oops, no-no-no, no macrovision please\n"));
                        return S_OK;
                }

                return pKsPS->Set(PropSet, Id, pInstanceData, InstanceLength, pPropertyData, DataLength);
        }

        return E_UNEXPECTED;
}

STDMETHODIMP CMacrovisionKicker::Get(REFGUID PropSet, ULONG Id, LPVOID pInstanceData, ULONG InstanceLength, LPVOID pPropertyData, ULONG DataLength, ULONG* pBytesReturned)
{
        if(CComQIPtr<IKsPropertySet> pKsPS = m_pInner)
        {
                return pKsPS->Get(PropSet, Id, pInstanceData, InstanceLength, pPropertyData, DataLength, pBytesReturned);
        }
        
        return E_UNEXPECTED;    
}

STDMETHODIMP CMacrovisionKicker::QuerySupported(REFGUID PropSet, ULONG Id, ULONG* pTypeSupport)
{
        if(CComQIPtr<IKsPropertySet> pKsPS = m_pInner)
        {
                return pKsPS->QuerySupported(PropSet, Id, pTypeSupport);
        }
        
        return E_UNEXPECTED;
}

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