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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#if defined _MSC_VER
#pragma warning(push, 1)
#pragma warning(disable: 4917)
#endif
#include <prewin.h>
#include <postwin.h>
#include <objbase.h>
#include <strmif.h>
#include <Amvideo.h>
#if defined(_MSC_VER) && (_MSC_VER < 1500)
#include <Qedit.h>
#else
#include "interface.hxx"
#endif
#include <uuids.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif
#include "framegrabber.hxx"
#include "player.hxx"
#include <tools/stream.hxx>
#include <vcl/graph.hxx>
#include <unotools/localfilehelper.hxx>
#define AVMEDIA_WIN_FRAMEGRABBER_IMPLEMENTATIONNAME "com.sun.star.comp.avmedia.FrameGrabber_DirectX"
#define AVMEDIA_WIN_FRAMEGRABBER_SERVICENAME "com.sun.star.media.FrameGrabber_DirectX"
using namespace ::com::sun::star;
namespace avmedia { namespace win {
// ----------------
// - FrameGrabber -
// ----------------
FrameGrabber::FrameGrabber( const uno::Reference< lang::XMultiServiceFactory >& rxMgr ) :
mxMgr( rxMgr )
{
::CoInitialize( NULL );
}
// ------------------------------------------------------------------------------
FrameGrabber::~FrameGrabber()
{
::CoUninitialize();
}
// ------------------------------------------------------------------------------
IMediaDet* FrameGrabber::implCreateMediaDet( const OUString& rURL ) const
{
IMediaDet* pDet = NULL;
if( SUCCEEDED( CoCreateInstance( CLSID_MediaDet, NULL, CLSCTX_INPROC_SERVER, IID_IMediaDet, (void**) &pDet ) ) )
{
OUString aLocalStr;
if( ::utl::LocalFileHelper::ConvertURLToPhysicalName( rURL, aLocalStr ) && !aLocalStr.isEmpty() )
{
if( !SUCCEEDED( pDet->put_Filename( ::SysAllocString( reinterpret_cast<LPCOLESTR>(aLocalStr.getStr()) ) ) ) )
{
pDet->Release();
pDet = NULL;
}
}
}
return pDet;
}
// ------------------------------------------------------------------------------
bool FrameGrabber::create( const OUString& rURL )
{
// just check if a MediaDet interface can be created with the given URL
IMediaDet* pDet = implCreateMediaDet( rURL );
if( pDet )
{
maURL = rURL;
pDet->Release();
pDet = NULL;
}
else
maURL = OUString();
return( maURL.getLength() > 0 );
}
// ------------------------------------------------------------------------------
uno::Reference< graphic::XGraphic > SAL_CALL FrameGrabber::grabFrame( double fMediaTime )
throw (uno::RuntimeException)
{
uno::Reference< graphic::XGraphic > xRet;
IMediaDet* pDet = implCreateMediaDet( maURL );
if( pDet )
{
double fLength;
long nStreamCount;
bool bFound = false;
if( SUCCEEDED( pDet->get_OutputStreams( &nStreamCount ) ) )
{
for( long n = 0; ( n < nStreamCount ) && !bFound; ++n )
{
GUID aMajorType;
if( SUCCEEDED( pDet->put_CurrentStream( n ) ) &&
SUCCEEDED( pDet->get_StreamType( &aMajorType ) ) &&
( aMajorType == MEDIATYPE_Video ) )
{
bFound = true;
}
}
}
if( bFound &&
( S_OK == pDet->get_StreamLength( &fLength ) ) &&
( fLength > 0.0 ) && ( fMediaTime >= 0.0 ) && ( fMediaTime <= fLength ) )
{
AM_MEDIA_TYPE aMediaType;
long nWidth = 0, nHeight = 0, nSize = 0;
if( SUCCEEDED( pDet->get_StreamMediaType( &aMediaType ) ) )
{
if( ( aMediaType.formattype == FORMAT_VideoInfo ) &&
( aMediaType.cbFormat >= sizeof( VIDEOINFOHEADER ) ) )
{
VIDEOINFOHEADER* pVih = reinterpret_cast< VIDEOINFOHEADER* >( aMediaType.pbFormat );
nWidth = pVih->bmiHeader.biWidth;
nHeight = pVih->bmiHeader.biHeight;
if( nHeight < 0 )
nHeight *= -1;
}
if( aMediaType.cbFormat != 0 )
{
::CoTaskMemFree( (PVOID) aMediaType.pbFormat );
aMediaType.cbFormat = 0;
aMediaType.pbFormat = NULL;
}
if( aMediaType.pUnk != NULL )
{
aMediaType.pUnk->Release();
aMediaType.pUnk = NULL;
}
}
if( ( nWidth > 0 ) && ( nHeight > 0 ) &&
SUCCEEDED( pDet->GetBitmapBits( 0, &nSize, NULL, nWidth, nHeight ) ) &&
( nSize > 0 ) )
{
char* pBuffer = new char[ nSize ];
try
{
if( SUCCEEDED( pDet->GetBitmapBits( fMediaTime, NULL, pBuffer, nWidth, nHeight ) ) )
{
SvMemoryStream aMemStm( pBuffer, nSize, STREAM_READ | STREAM_WRITE );
Bitmap aBmp;
if( aBmp.Read( aMemStm, false ) && !aBmp.IsEmpty() )
{
const Graphic aGraphic( aBmp );
xRet = aGraphic.GetXGraphic();
}
}
}
catch( ... )
{
}
delete [] pBuffer;
}
}
pDet->Release();
}
return xRet;
}
// ------------------------------------------------------------------------------
OUString SAL_CALL FrameGrabber::getImplementationName( )
throw (uno::RuntimeException)
{
return OUString( AVMEDIA_WIN_FRAMEGRABBER_IMPLEMENTATIONNAME );
}
// ------------------------------------------------------------------------------
sal_Bool SAL_CALL FrameGrabber::supportsService( const OUString& ServiceName )
throw (uno::RuntimeException)
{
return ServiceName == AVMEDIA_WIN_FRAMEGRABBER_SERVICENAME;
}
// ------------------------------------------------------------------------------
uno::Sequence< OUString > SAL_CALL FrameGrabber::getSupportedServiceNames( )
throw (uno::RuntimeException)
{
uno::Sequence< OUString > aRet(1);
aRet[0] = AVMEDIA_WIN_FRAMEGRABBER_SERVICENAME ;
return aRet;
}
} // namespace win
} // namespace avmedia
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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