From a68b877d96a9e9f366f27752e071bc0e895e9dc7 Mon Sep 17 00:00:00 2001 From: Carl Hetherington Date: Wed, 1 Jun 2016 23:53:06 +0100 Subject: Add Reader classes to permit much more efficient DCP reading. --- src/asset_reader.cc | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 src/asset_reader.cc (limited to 'src/asset_reader.cc') diff --git a/src/asset_reader.cc b/src/asset_reader.cc new file mode 100644 index 00000000..a78af4d3 --- /dev/null +++ b/src/asset_reader.cc @@ -0,0 +1,42 @@ +/* + Copyright (C) 2016 Carl Hetherington + + 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. + + 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 libdcp. If not, see . + +*/ + +#include "asset_reader.h" +#include "mxf.h" +#include "exceptions.h" +#include "AS_DCP.h" + +using namespace dcp; + +AssetReader::AssetReader (MXF const * mxf) + : _decryption_context (0) +{ + if (mxf->key()) { + _decryption_context = new ASDCP::AESDecContext; + if (ASDCP_FAILURE (_decryption_context->InitKey (mxf->key()->value ()))) { + throw MiscError ("could not set up decryption context"); + } + } +} + +AssetReader::~AssetReader () +{ + delete _decryption_context; +} -- cgit v1.2.3