86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/*
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Clip - a Media Clip
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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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#include "proc/mobject/session/clip.hpp"
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#include "proc/assetmanager.hpp"
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#include "proc/asset/media.hpp"
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#include "proc/asset/clip.hpp"
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#include "lib/time/mutation.hpp"
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#include "lib/util.hpp"
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using lib::time::Mutation;
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using util::isnil;
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namespace mobject {
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namespace session {
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/** new clip-MO linked with the given asset::Clip.
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* Initially, this clip will cover the whole source media length.
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*/
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Clip::Clip (const asset::Clip& clipDef, const Media& mediaDef)
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: mediaDef_(mediaDef)
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, clipDef_(clipDef)
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{
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setupLength();
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throwIfInvalid();
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}
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/** implementing the common MObject self test.
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* Length definition is consitent, underlying
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* media def is accessible etc. */
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bool
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Clip::isValid () const
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{
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TODO ("check consistency of clip length def, implies accessing the underlying media def");
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return !isnil(length_);
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}
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void
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Clip::setupLength()
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{
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TODO ("really calculate the length of a clip and set length field");
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this->length_.accept (Mutation::changeDuration(mediaDef_.getLength()));
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}
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PMedia
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Clip::getMedia () const
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{
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return asset::AssetManager::wrap (mediaDef_);
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}
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PClipAsset
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Clip::findClipAsset () const
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{
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return asset::AssetManager::wrap (clipDef_);
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}
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}} // namespace mobject::session
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