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+/* -*- 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 "framegrabber.hxx"
+#include "player.hxx"
+
+#include <sal/log.hxx>
+#include <tools/stream.hxx>
+#include <vcl/graph.hxx>
+#include <vcl/cvtgrf.hxx>
+#include <unotools/localfilehelper.hxx>
+
+using namespace ::com::sun::star;
+
+namespace avmedia::macavf {
+
+FrameGrabber::FrameGrabber()
+: mpImageGen( nullptr )
+{}
+
+
+FrameGrabber::~FrameGrabber()
+{
+ if( mpImageGen )
+ CFRelease( mpImageGen );
+}
+
+
+bool FrameGrabber::create( AVAsset* pMovie )
+{
+ if( [[pMovie tracksWithMediaType:AVMediaTypeVideo] count] == 0)
+ {
+ SAL_WARN("avmedia", "AVGrabber::create() found no video content!" );
+ return false;
+ }
+
+ mpImageGen = [AVAssetImageGenerator assetImageGeneratorWithAsset:pMovie];
+ CFRetain( mpImageGen );
+ return true;
+}
+
+
+uno::Reference< graphic::XGraphic > SAL_CALL FrameGrabber::grabFrame( double fMediaTime )
+{
+ uno::Reference< graphic::XGraphic > xRet;
+ if( !mpImageGen )
+ return xRet;
+
+ // get the requested image from the movie
+ CGImage* pCGImage = [mpImageGen copyCGImageAtTime:CMTimeMakeWithSeconds(fMediaTime,1000) actualTime:nullptr error:nullptr];
+
+ // convert the image to a TIFF-formatted byte-array
+ CFMutableDataRef pCFData = CFDataCreateMutable( kCFAllocatorDefault, 0 );
+ SAL_WNODEPRECATED_DECLARATIONS_PUSH // kUTTypeTIFF (12.0)
+ CGImageDestination* pCGImgDest = CGImageDestinationCreateWithData( pCFData, kUTTypeTIFF, 1, nullptr );
+ SAL_WNODEPRECATED_DECLARATIONS_POP
+ CGImageDestinationAddImage( pCGImgDest, pCGImage, nullptr );
+ CGImageDestinationFinalize( pCGImgDest );
+ CFRelease( pCGImgDest );
+ const CFIndex nBitmapLen = CFDataGetLength( pCFData );
+ UInt8 * pBitmapBytes = const_cast<UInt8 *>(CFDataGetBytePtr( pCFData ));
+
+ // convert the image into the return-value type which is a graphic::XGraphic
+ SvMemoryStream aMemStm( pBitmapBytes, nBitmapLen, StreamMode::READ | StreamMode::WRITE );
+ Graphic aGraphic;
+ if( GraphicConverter::Import( aMemStm, aGraphic, ConvertDataFormat::TIF ) == ERRCODE_NONE )
+ xRet = aGraphic.GetXGraphic();
+
+ // clean up resources
+ CFRelease( pCFData );
+ return xRet;
+}
+
+
+OUString SAL_CALL FrameGrabber::getImplementationName( )
+{
+ return AVMEDIA_MACAVF_FRAMEGRABBER_IMPLEMENTATIONNAME;
+}
+
+sal_Bool SAL_CALL FrameGrabber::supportsService( const OUString& ServiceName )
+{
+ return ServiceName == AVMEDIA_MACAVF_FRAMEGRABBER_SERVICENAME;
+}
+
+uno::Sequence< OUString > SAL_CALL FrameGrabber::getSupportedServiceNames( )
+{
+ return { AVMEDIA_MACAVF_FRAMEGRABBER_SERVICENAME };
+}
+
+} // namespace avmedia::macavf
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */