avmedia/source/gstreamer/gstframegrabber.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <sal/config.h>
  23
  24 #include <string_view>
  25
  26 #include "gstplayer.hxx"
  27 #include <com/sun/star/media/XFrameGrabber.hpp>
  28 #include <cppuhelper/implbase.hxx>
  29 #include <rtl/ref.hxx>
  30
  31 namespace avmedia::gstreamer {
  32
  33 typedef ::cppu::WeakImplHelper< css::media::XFrameGrabber,
  34                                 css::lang::XServiceInfo > FrameGrabber_BASE;
  35
  36
  37 class FrameGrabber : public FrameGrabber_BASE
  38 {
  39     GstElement *mpPipeline;
  40     void disposePipeline();
  41 public:
  42     // noncopyable
  43     FrameGrabber(const FrameGrabber&) = delete;
  44     const FrameGrabber& operator=(const FrameGrabber&) =delete;
  45
  46     // static create method instead of public Ctor
  47     static rtl::Reference<FrameGrabber> create( std::u16string_view rURL );
  48
  49     virtual ~FrameGrabber() override;
  50
  51     // XFrameGrabber
  52     virtual css::uno::Reference< css::graphic::XGraphic > SAL_CALL grabFrame( double fMediaTime ) override;
  53
  54     // XServiceInfo
  55     virtual OUString SAL_CALL getImplementationName(  ) override;
  56     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
  57     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
  58
  59 private:
  60     explicit FrameGrabber( std::u16string_view aURL );
  61 };
  62
  63 } // avmedia::gst
  64
  65 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */