67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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MEDIA-IMPL-LIB.hpp - facade interface to access an external media handling library
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Copyright (C) Lumiera.org
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2008, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/** @file media-impl-lib.hpp
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** Abstraction to represent (metadata) of an external library to handle media data
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** Lumiera delegates most actual media data processing to well established external
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** libraries. While configuring the render process, a [stream type](streamtype.hpp)
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** framework is used to gain uniform access to heterogeneous media and processing
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** facilities. At some point, we need to integrate the individual capabilities of
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** the referenced libraries, though. This will be done with adapter implementations,
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** where the interface MediaImplLip defines those aspects actually used and required
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** by our internal processing.
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*/
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#ifndef PROC_CONTROL_MEDIA_IMPL_LIB_H
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#define PROC_CONTROL_MEDIA_IMPL_LIB_H
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#include "proc/streamtype.hpp"
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namespace proc {
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namespace control {
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using lib::Symbol;
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class MediaImplLib
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{
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protected:
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virtual ~MediaImplLib() {};
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typedef StreamType::ImplFacade ImplFacade;
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typedef StreamType::ImplFacade::TypeTag TypeTag;
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typedef StreamType::ImplFacade::DataBuffer DataBuffer;
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public:
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virtual Symbol getLibID() const =0;
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virtual ImplFacade const& getImplFacade (TypeTag&) =0;
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};
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}} // namespace proc::control
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#endif /*PROC_CONTROL_MEDIA_IMPL_LIB_H*/
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