vpDirectShowDevice.cpp

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2017 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * DirectShow device description.
 *
 * Authors:
 * Bruno Renier
 *
 *****************************************************************************/

#ifndef DOXYGEN_SHOULD_SKIP_THIS

#include <stdio.h>
#include <visp3/core/vpConfig.h>
#if ( defined(VISP_HAVE_DIRECTSHOW) )

#include <visp3/sensor/vpDirectShowDevice.h>


bool vpDirectShowDevice::init(const CComPtr<IMoniker>& pMoniker)
{
    HRESULT hr;

    //Get the properties
    CComPtr<IPropertyBag> pPropBag;
  pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void**)(&pPropBag));

    //get the name of the input
    VARIANT varName;
    VARIANT varDesc;
    VARIANT varDevPath;
    VariantInit(&varName);
    VariantInit(&varDesc);
    VariantInit(&varDevPath);
    char tmp[FILENAME_MAX];

    hr = pPropBag->Read(L"FriendlyName", &varName, 0);

    //successfully got the name
    if (SUCCEEDED(hr))
    {
        sprintf(tmp, "%S", varName.bstrVal);
        name = tmp;
    }

    VariantClear(&varName);

    hr = pPropBag->Read(L"Description", &varDesc, 0);

    //successfully got the description
    if (SUCCEEDED(hr))
    {
        sprintf(tmp, "%S", varDesc.bstrVal);
        desc = tmp;
    }

    VariantClear(&varDesc);

    hr = pPropBag->Read(L"DevicePath", &varDevPath, 0);

    //successfully got the device path
    if (SUCCEEDED(hr))
    {
        sprintf(tmp, "%S",varDevPath.bstrVal);
        devPath = tmp;
    }

    VariantClear(&varDevPath);

    inUse=false;

    return true;
}

bool vpDirectShowDevice::operator==(vpDirectShowDevice& dev)
{
    return name==dev.name
        && desc==dev.desc
        && devPath==dev.devPath;
}

VISP_EXPORT std::ostream& operator<<(std::ostream& os, vpDirectShowDevice& dev)
{
  return os<<dev.name<<std::endl<<dev.desc<<std::endl<<dev.devPath;
}

#elif !defined(VISP_BUILD_SHARED_LIBS)
// Work arround to avoid warning: libvisp_sensor.a(vpDirectShowDevice.cpp.o) has no symbols
void dummy_vpDirectShowDevice() {};
#endif
#endif