asset/clip.cpp

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/*
  Clip(Asset)  -  bookkeeping (asset) view of a media clip.

  Copyright (C)         Lumiera.org
    2008,               Hermann Vosseler <Ichthyostega@web.de>

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License as
  published by the Free Software Foundation; either version 2 of
  the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

* *****************************************************/


#include "steam/asset/clip.hpp"
#include "steam/mobject/session/mobjectfactory.hpp"   

using std::static_pointer_cast;


namespace steam {
namespace asset {
  
  namespace {
    
    const Asset::Ident
    createClipIdent (const Media& mediaref)
    {
      string name (mediaref.ident.name + "-clip");  // TODO something sensible here; append number, sanitise etc.
      Category category (mediaref.ident.category);
      category.setPath(CLIP_SUBFOLDER);
      return Asset::Ident (name, category, 
                           mediaref.ident.org, 
                           mediaref.ident.version );
    }
    
    Media::PClip
    createClipMO (const Clip& thisClipAsset, const Media& mediaChannel)
    {
      return mobject::MObject::create (thisClipAsset,mediaChannel);
    }
  }
  
  
  
  Clip::Clip (Media& mediaref)
    : Media (createClipIdent (mediaref),
             mediaref.getFilename(),
             mediaref.getLength())
    , source_ (mediaref) 
    , clipMO_ (createClipMO (*this, source_))
    {
      this->defineDependency (mediaref);
    }
  
  
  Media::PClip
  Clip::createClip ()  const
  {
    return clipMO_;
  }
  


  Media::PClipAsset
  Clip::getClipAsset ()
  {
    return AssetManager::wrap (*this);
  }
  

  
  Media::PMedia
  Clip::checkCompound()  const
  {
    return source_.checkCompound();       
  }



}} // namespace steam::asset