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/*
Copyright (C) 2012-2014 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.
*/
#ifndef LIBDCP_MXF_H
#define LIBDCP_MXF_H
#include "content.h"
#include "key.h"
#include "metadata.h"
#include <boost/signals2.hpp>
namespace ASDCP {
class AESEncContext;
class AESDecContext;
}
/* Undefine some stuff that the OS X 10.5 SDK defines */
#undef Key
#undef set_key
namespace dcp
{
class MXFMetadata;
/** @class MXF
* @brief Parent class for classes which represent MXF files.
*/
class MXF : public Content
{
public:
MXF (Fraction edit_rate);
MXF (boost::filesystem::path file);
~MXF ();
/** @return the 4-character key type for this MXF (MDIK, MDAK, etc.) */
virtual std::string key_type () const = 0;
bool equals (
boost::shared_ptr<const Content> other,
EqualityOptions opt,
boost::function<void (NoteType, std::string)> note
) const;
/** Fill in a ADSCP::WriteInfo struct.
* @param w struct to fill in.
* @param standard INTEROP or SMPTE.
*/
void fill_writer_info (ASDCP::WriterInfo* w, Standard standard);
/** @return true if the data is encrypted */
bool encrypted () const {
return !_key_id.empty ();
}
/** Set the ID of the key that is used for encryption/decryption.
* @param i key ID.
*/
void set_key_id (std::string i) {
_key_id = i;
}
/** @return the ID of the key used for encryption/decryption, or an empty string */
std::string key_id () const {
return _key_id;
}
void set_key (Key);
/** @return encryption/decryption key, if one has been set */
boost::optional<Key> key () const {
return _key;
}
/** @return encryption context, set up with any key that has been passed to set_key() */
ASDCP::AESEncContext* encryption_context () const {
return _encryption_context;
}
/** Set the metadata that is written to the MXF file.
* @param m Metadata.
*/
void set_metadata (MXFMetadata m) {
_metadata = m;
}
/** @return metadata from the MXF file */
MXFMetadata metadata () const {
return _metadata;
}
protected:
std::string pkl_type (Standard standard) const;
void read_writer_info (ASDCP::WriterInfo const &);
ASDCP::AESEncContext* _encryption_context;
ASDCP::AESDecContext* _decryption_context;
/** ID of the key used for encryption/decryption, or an empty string */
std::string _key_id;
/** Key used for encryption/decryption, if there is one */
boost::optional<Key> _key;
MXFMetadata _metadata;
};
}
#endif
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