Include trimming.

[libdcp.git] / src / asset_writer.h

diff --git a/src/asset_writer.h b/src/asset_writer.h
index 31d2f7ae0aeb67ce05738ebbad96f63ed58885ff..d4003fc9d4466278c5f0938ed9424b162b24e006 100644 (file)
--- a/src/asset_writer.h
+++ b/src/asset_writer.h
@@ -1,65 +1,93 @@
 /*
-    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of libdcp.
+
+    libdcp 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,
+    libdcp 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.
+    along with libdcp.  If not, see <http://www.gnu.org/licenses/>.
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of portions of this program with the
+    OpenSSL library under certain conditions as described in each
+    individual source file, and distribute linked combinations
+    including the two.
 
+    You must obey the GNU General Public License in all respects
+    for all of the code used other than OpenSSL.  If you modify
+    file(s) with this exception, you may extend this exception to your
+    version of the file(s), but you are not obligated to do so.  If you
+    do not wish to do so, delete this exception statement from your
+    version.  If you delete this exception statement from all source
+    files in the program, then also delete it here.
 */
 
+
 /** @file  src/asset_writer.h
- *  @brief AssetWriter class.
+ *  @brief AssetWriter class
  */
 
+
 #ifndef LIBDCP_ASSET_WRITER_H
 #define LIBDCP_ASSET_WRITER_H
 
+
+#include "crypto_context.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
+class AssetWriter
 {
 public:
-       virtual ~AssetWriter ();
-       virtual void finalize ();
+       AssetWriter (AssetWriter const&) = delete;
+       AssetWriter& operator= (AssetWriter const&) = delete;
+
+       virtual ~AssetWriter () {}
+
+       /** @return true if anything was written by this writer */
+       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;
+       MXF* _mxf = nullptr;
        /** 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;
+       int64_t _frames_written = 0;
        /** true if finalize() has been called on this object */
-       bool _finalized;
-       ASDCP::AESEncContext* _encryption_context;
+       bool _finalized = false;
+       /** true if something has been written to this asset */
+       bool _started = false;
+       std::shared_ptr<EncryptionContext> _crypto_context;
 };
 
 }