7f01cf67f8
in SoundHandler, FrameGrabber, Manager, MissingPluginInstaller, and several classes in 'avmedia' module. Change-Id: I9ab42d2ef95f3b0c724a7be9eb9e2389336a6f38 Reviewed-on: https://gerrit.libreoffice.org/27777 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
226 lines
6.4 KiB
C++
226 lines
6.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#if defined _MSC_VER
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#pragma warning(push, 1)
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#pragma warning(disable: 4917)
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#endif
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#include <prewin.h>
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#include <postwin.h>
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#include <objbase.h>
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#include <strmif.h>
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#include <Amvideo.h>
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#include "interface.hxx"
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#include <uuids.h>
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#if defined _MSC_VER
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#pragma warning(pop)
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#endif
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#include "framegrabber.hxx"
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#include "player.hxx"
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#include <cppuhelper/supportsservice.hxx>
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#include <osl/file.hxx>
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#include <tools/stream.hxx>
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#include <vcl/graph.hxx>
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#include <vcl/dibtools.hxx>
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#define AVMEDIA_WIN_FRAMEGRABBER_IMPLEMENTATIONNAME "com.sun.star.comp.avmedia.FrameGrabber_DirectX"
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#define AVMEDIA_WIN_FRAMEGRABBER_SERVICENAME "com.sun.star.media.FrameGrabber_DirectX"
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using namespace ::com::sun::star;
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namespace avmedia { namespace win {
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FrameGrabber::FrameGrabber( const uno::Reference< lang::XMultiServiceFactory >& rxMgr ) :
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mxMgr( rxMgr )
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{
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::CoInitialize( NULL );
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}
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FrameGrabber::~FrameGrabber()
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{
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::CoUninitialize();
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}
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IMediaDet* FrameGrabber::implCreateMediaDet( const OUString& rURL ) const
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{
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IMediaDet* pDet = NULL;
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if( SUCCEEDED( CoCreateInstance( CLSID_MediaDet, NULL, CLSCTX_INPROC_SERVER, IID_IMediaDet, (void**) &pDet ) ) )
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{
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OUString aLocalStr;
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if( osl::FileBase::getSystemPathFromFileURL( rURL, aLocalStr )
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== osl::FileBase::E_None )
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{
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if( !SUCCEEDED( pDet->put_Filename( ::SysAllocString( reinterpret_cast<LPCOLESTR>(aLocalStr.getStr()) ) ) ) )
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{
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pDet->Release();
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pDet = NULL;
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}
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}
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}
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return pDet;
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}
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bool FrameGrabber::create( const OUString& rURL )
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{
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// just check if a MediaDet interface can be created with the given URL
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IMediaDet* pDet = implCreateMediaDet( rURL );
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if( pDet )
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{
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maURL = rURL;
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pDet->Release();
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pDet = NULL;
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}
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else
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maURL.clear();
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return !maURL.isEmpty();
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}
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uno::Reference< graphic::XGraphic > SAL_CALL FrameGrabber::grabFrame( double fMediaTime )
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throw (uno::RuntimeException)
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{
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uno::Reference< graphic::XGraphic > xRet;
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IMediaDet* pDet = implCreateMediaDet( maURL );
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if( pDet )
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{
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double fLength;
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long nStreamCount;
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bool bFound = false;
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if( SUCCEEDED( pDet->get_OutputStreams( &nStreamCount ) ) )
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{
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for( long n = 0; ( n < nStreamCount ) && !bFound; ++n )
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{
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GUID aMajorType;
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if( SUCCEEDED( pDet->put_CurrentStream( n ) ) &&
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SUCCEEDED( pDet->get_StreamType( &aMajorType ) ) &&
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( aMajorType == MEDIATYPE_Video ) )
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{
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bFound = true;
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}
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}
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}
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if( bFound &&
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( S_OK == pDet->get_StreamLength( &fLength ) ) &&
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( fLength > 0.0 ) && ( fMediaTime >= 0.0 ) && ( fMediaTime <= fLength ) )
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{
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AM_MEDIA_TYPE aMediaType;
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long nWidth = 0, nHeight = 0, nSize = 0;
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if( SUCCEEDED( pDet->get_StreamMediaType( &aMediaType ) ) )
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{
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if( ( aMediaType.formattype == FORMAT_VideoInfo ) &&
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( aMediaType.cbFormat >= sizeof( VIDEOINFOHEADER ) ) )
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{
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VIDEOINFOHEADER* pVih = reinterpret_cast< VIDEOINFOHEADER* >( aMediaType.pbFormat );
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nWidth = pVih->bmiHeader.biWidth;
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nHeight = pVih->bmiHeader.biHeight;
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if( nHeight < 0 )
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nHeight *= -1;
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}
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if( aMediaType.cbFormat != 0 )
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{
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::CoTaskMemFree( (PVOID) aMediaType.pbFormat );
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aMediaType.cbFormat = 0;
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aMediaType.pbFormat = NULL;
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}
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if( aMediaType.pUnk != NULL )
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{
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aMediaType.pUnk->Release();
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aMediaType.pUnk = NULL;
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}
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}
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if( ( nWidth > 0 ) && ( nHeight > 0 ) &&
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SUCCEEDED( pDet->GetBitmapBits( 0, &nSize, NULL, nWidth, nHeight ) ) &&
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( nSize > 0 ) )
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{
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char* pBuffer = new char[ nSize ];
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try
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{
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if( SUCCEEDED( pDet->GetBitmapBits( fMediaTime, NULL, pBuffer, nWidth, nHeight ) ) )
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{
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SvMemoryStream aMemStm( pBuffer, nSize, StreamMode::READ | StreamMode::WRITE );
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Bitmap aBmp;
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if( ReadDIB(aBmp, aMemStm, false ) && !aBmp.IsEmpty() )
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{
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const Graphic aGraphic( aBmp );
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xRet = aGraphic.GetXGraphic();
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}
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}
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}
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catch( ... )
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{
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}
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delete [] pBuffer;
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}
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}
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pDet->Release();
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}
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return xRet;
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}
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OUString SAL_CALL FrameGrabber::getImplementationName( )
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throw (uno::RuntimeException)
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{
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return OUString( AVMEDIA_WIN_FRAMEGRABBER_IMPLEMENTATIONNAME );
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}
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sal_Bool SAL_CALL FrameGrabber::supportsService( const OUString& ServiceName )
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throw (uno::RuntimeException)
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{
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return cppu::supportsService(this, ServiceName);
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}
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uno::Sequence< OUString > SAL_CALL FrameGrabber::getSupportedServiceNames( )
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throw (uno::RuntimeException)
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{
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return { AVMEDIA_WIN_FRAMEGRABBER_SERVICENAME };
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}
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} // namespace win
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} // namespace avmedia
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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