Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 225 insertions, 0 deletions

diff --git a/avmedia/source/win/framegrabber.cxx b/avmedia/source/win/framegrabber.cxx
new file mode 100644
index 000000000..21b5dede6
--- /dev/null
+++ b/avmedia/source/win/framegrabber.cxx
@@ -0,0 +1,225 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <memory>
+
+#include <prewin.h>
+#include <postwin.h>
+#include <objbase.h>
+#include <strmif.h>
+#include <Amvideo.h>
+#include "interface.hxx"
+#include <uuids.h>
+
+#include "framegrabber.hxx"
+#include "player.hxx"
+
+#include <cppuhelper/supportsservice.hxx>
+#include <osl/file.hxx>
+#include <tools/stream.hxx>
+#include <vcl/graph.hxx>
+#include <vcl/dibtools.hxx>
+#include <o3tl/char16_t2wchar_t.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::win {
+
+
+FrameGrabber::FrameGrabber( const uno::Reference< lang::XMultiServiceFactory >& rxMgr ) :
+    mxMgr( rxMgr )
+{
+    ::CoInitializeEx( nullptr, COINIT_APARTMENTTHREADED );
+}
+
+
+FrameGrabber::~FrameGrabber()
+{
+    ::CoUninitialize();
+}
+
+namespace {
+
+IMediaDet* implCreateMediaDet( const OUString& rURL )
+{
+    IMediaDet* pDet = nullptr;
+
+    if( SUCCEEDED( CoCreateInstance( CLSID_MediaDet, nullptr, CLSCTX_INPROC_SERVER, IID_IMediaDet, reinterpret_cast<void**>(&pDet) ) ) )
+    {
+        OUString aLocalStr;
+
+        if( osl::FileBase::getSystemPathFromFileURL( rURL, aLocalStr )
+            == osl::FileBase::E_None )
+        {
+            BSTR bstrFilename = SysAllocString(o3tl::toW(aLocalStr.getStr()));
+            if( !SUCCEEDED( pDet->put_Filename( bstrFilename ) ) )
+            {
+                // Shouldn't we free this string unconditionally, not only in case of failure?
+                // I cannot find information why do we pass a newly allocated BSTR to the put_Filename
+                // and if it frees the string internally
+                SysFreeString(bstrFilename);
+                pDet->Release();
+                pDet = nullptr;
+            }
+        }
+    }
+
+    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 = nullptr;
+    }
+    else
+        maURL.clear();
+
+    return !maURL.isEmpty();
+}
+
+
+uno::Reference< graphic::XGraphic > SAL_CALL FrameGrabber::grabFrame( double fMediaTime )
+{
+    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( aMediaType.pbFormat );
+                    aMediaType.cbFormat = 0;
+                    aMediaType.pbFormat = nullptr;
+                }
+
+                if( aMediaType.pUnk != nullptr )
+                {
+                    aMediaType.pUnk->Release();
+                    aMediaType.pUnk = nullptr;
+                }
+            }
+
+            if( ( nWidth > 0 ) && ( nHeight > 0 ) &&
+                SUCCEEDED( pDet->GetBitmapBits( 0, &nSize, nullptr, nWidth, nHeight ) ) &&
+                ( nSize > 0  ) )
+            {
+                auto pBuffer = std::make_unique<char[]>(nSize);
+
+                try
+                {
+                    if( SUCCEEDED( pDet->GetBitmapBits( fMediaTime, nullptr, pBuffer.get(), nWidth, nHeight ) ) )
+                    {
+                        SvMemoryStream  aMemStm( pBuffer.get(), nSize, StreamMode::READ | StreamMode::WRITE );
+                        Bitmap          aBmp;
+
+                        if( ReadDIB(aBmp, aMemStm, false ) && !aBmp.IsEmpty() )
+                        {
+                            const Graphic aGraphic( aBmp );
+                            xRet = aGraphic.GetXGraphic();
+                        }
+                    }
+                }
+                catch( ... )
+                {
+                }
+            }
+        }
+
+        pDet->Release();
+    }
+
+    return xRet;
+}
+
+
+OUString SAL_CALL FrameGrabber::getImplementationName(  )
+{
+    return AVMEDIA_WIN_FRAMEGRABBER_IMPLEMENTATIONNAME;
+}
+
+
+sal_Bool SAL_CALL FrameGrabber::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+
+uno::Sequence< OUString > SAL_CALL FrameGrabber::getSupportedServiceNames(  )
+{
+    return { AVMEDIA_WIN_FRAMEGRABBER_SERVICENAME };
+}
+
+} // namespace avmedia::win
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */