2 Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
20 /** @file src/asset_writer.h
21 * @brief AssetWriter class.
24 #ifndef LIBDCP_ASSET_WRITER_H
25 #define LIBDCP_ASSET_WRITER_H
28 #include <boost/filesystem.hpp>
39 /** @class AssetWriter
40 * @brief Parent class for classes which can write MXF-based assets.
42 * The AssetWriter lasts for the duration of the write and is then discarded.
43 * They can only be created by calling start_write() on an appropriate Asset object.
45 class AssetWriter : public boost::noncopyable
48 virtual ~AssetWriter ();
49 virtual bool finalize ();
51 int64_t frames_written () const {
52 return _frames_written;
56 AssetWriter (MXF* mxf, boost::filesystem::path file, Standard standard);
58 /** MXF that we are writing */
60 /** File that we are writing to */
61 boost::filesystem::path _file;
62 /** Number of `frames' written so far; the definition of a frame
63 * varies depending on the subclass.
65 int64_t _frames_written;
66 /** true if finalize() has been called on this object */
68 /** true if something has been written to this asset */
70 ASDCP::AESEncContext* _encryption_context;
71 ASDCP::HMACContext* _hmac_context;