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/*
Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
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.
*/
/** @file src/asset.h
* @brief Asset class.
*/
#ifndef LIBDCP_ASSET_H
#define LIBDCP_ASSET_H
#include "object.h"
#include "types.h"
#include <boost/filesystem.hpp>
#include <boost/function.hpp>
#include <boost/bind.hpp>
namespace xmlpp {
class Node;
}
struct asset_test;
namespace dcp {
/** @class Asset
* @brief Parent class for DCP assets, i.e. picture, sound, subtitles, CPLs, fonts.
*
* Note that this class is not used for ReelAssets; those are just for the metadata
* that gets put into <Reel>s.
*/
class Asset : public Object
{
public:
Asset ();
Asset (boost::filesystem::path file);
Asset (std::string id, boost::filesystem::path file);
virtual bool equals (
boost::shared_ptr<const Asset> other,
EqualityOptions opt,
NoteHandler note
) const;
/** Write details of the asset to a ASSETMAP.
* @param node Parent node.
*/
void write_to_assetmap (xmlpp::Node* node, boost::filesystem::path root) const;
/** Write details of the asset to a PKL AssetList node.
* @param node Parent node.
* @param standard Standard to use.
*/
void write_to_pkl (xmlpp::Node* node, boost::filesystem::path root, Standard standard) const;
/** @return the most recent disk file used to read or write this asset; may be empty */
boost::filesystem::path file () const {
return _file;
}
void set_file (boost::filesystem::path file) const;
/** @return the hash of this asset's file */
std::string hash (boost::function<void (float)> progress = 0) const;
protected:
friend struct ::asset_test;
virtual std::string pkl_type (Standard standard) const = 0;
/** The most recent disk file used to read or write this asset; may be empty */
mutable boost::filesystem::path _file;
/** Hash of _file, or empty if the hash has not yet been computed */
mutable std::string _hash;
};
}
#endif
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