/*
Copyright (C) 2012-2015 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
* @param mxf MXF that we are writing.
* @param file File to write to.
*/
-AssetWriter::AssetWriter (MXF* mxf, boost::filesystem::path file)
+AssetWriter::AssetWriter (MXF* mxf, boost::filesystem::path file, Standard standard)
: _mxf (mxf)
, _file (file)
, _frames_written (0)
, _finalized (false)
+ , _started (false)
, _encryption_context (0)
+ , _hmac_context (0)
{
if (mxf->key ()) {
_encryption_context = new ASDCP::AESEncContext;
if (ASDCP_FAILURE (_encryption_context->SetIVec (rng.FillRandom (cbc_buffer, ASDCP::CBC_BLOCK_SIZE)))) {
throw MiscError ("could not set up CBC initialization vector");
}
+
+ _hmac_context = new ASDCP::HMACContext;
+
+ ASDCP::LabelSet_t type;
+ if (standard == INTEROP) {
+ type = ASDCP::LS_MXF_INTEROP;
+ } else {
+ type = ASDCP::LS_MXF_SMPTE;
+ }
+
+ if (ASDCP_FAILURE (_hmac_context->InitKey (mxf->key()->value(), type))) {
+ throw MiscError ("could not set up HMAC context");
+ }
}
}
AssetWriter::~AssetWriter ()
{
delete _encryption_context;
+ delete _hmac_context;
}
-void
+/** @return true if anything was written by this writer */
+bool
AssetWriter::finalize ()
{
DCP_ASSERT (!_finalized);
_finalized = true;
+ return _started;
}