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/*
Copyright (C) 2012-2015 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_writer.h
* @brief AssetWriter class.
*/
#ifndef LIBDCP_ASSET_WRITER_H
#define LIBDCP_ASSET_WRITER_H
#include <boost/filesystem.hpp>
namespace ASDCP {
class AESEncContext;
}
namespace dcp {
class MXF;
/** @class AssetWriter
* @brief Parent class for classes which can write MXF-based assets.
*
* The AssetWriter lasts for the duration of the write and is then discarded.
* They can only be created by calling start_write() on an appropriate Asset object.
*/
class AssetWriter : public boost::noncopyable
{
public:
virtual ~AssetWriter ();
virtual bool finalize ();
int64_t frames_written () const {
return _frames_written;
}
protected:
AssetWriter (MXF* mxf, boost::filesystem::path file);
/** MXF that we are writing */
MXF* _mxf;
/** File that we are writing to */
boost::filesystem::path _file;
/** Number of `frames' written so far; the definition of a frame
* varies depending on the subclass.
*/
int64_t _frames_written;
/** true if finalize() has been called on this object */
bool _finalized;
/** true if something has been written to this asset */
bool _started;
ASDCP::AESEncContext* _encryption_context;
};
}
#endif
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