2 Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <boost/signals2.hpp>
35 /* Undefine some stuff that the OS X 10.5 SDK defines */
45 * @brief Parent class for classes which represent MXF files.
47 class MXF : public Asset
50 MXF (Fraction edit_rate);
51 MXF (boost::filesystem::path file);
55 boost::shared_ptr<const Asset> other,
60 /** Fill in a ADSCP::WriteInfo struct.
61 * @param w struct to fill in.
62 * @param standard INTEROP or SMPTE.
64 void fill_writer_info (ASDCP::WriterInfo* w, Standard standard);
66 /** @return true if the data is encrypted */
67 bool encrypted () const {
68 return !_key_id.empty ();
71 /** Set the ID of the key that is used for encryption/decryption.
74 void set_key_id (std::string i) {
78 /** @return the ID of the key used for encryption/decryption, or an empty string */
79 std::string key_id () const {
85 /** @return encryption/decryption key, if one has been set */
86 boost::optional<Key> key () const {
90 /** @return encryption context, set up with any key that has been passed to set_key() */
91 ASDCP::AESEncContext* encryption_context () const {
92 return _encryption_context;
95 /** Set the metadata that is written to the MXF file.
98 void set_metadata (MXFMetadata m) {
102 /** @return metadata from the MXF file */
103 MXFMetadata metadata () const {
107 Fraction edit_rate () const {
111 /** @return The total length of this content in video frames.
112 * The amount of content presented may be less than this.
114 int64_t intrinsic_duration () const {
115 return _intrinsic_duration;
119 friend class MXFWriter;
121 virtual std::string asdcp_kind () const = 0;
122 std::string pkl_type (Standard standard) const;
123 void read_writer_info (ASDCP::WriterInfo const &);
126 /** The total length of this content in video frames. The amount of
127 * content presented may be less than this.
129 int64_t _intrinsic_duration;
131 ASDCP::AESEncContext* _encryption_context;
132 ASDCP::AESDecContext* _decryption_context;
133 /** ID of the key used for encryption/decryption, or an empty string */
135 /** Key used for encryption/decryption, if there is one */
136 boost::optional<Key> _key;
137 MXFMetadata _metadata;