Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

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

1 files changed, 108 insertions, 0 deletions

diff --git a/avmedia/source/macavf/framegrabber.mm b/avmedia/source/macavf/framegrabber.mm
new file mode 100644
index 000000000..e0b8bad61
--- /dev/null
+++ b/avmedia/source/macavf/framegrabber.mm
@@ -0,0 +1,108 @@
+/* -*- 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: */