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/*
Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
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 <http://www.gnu.org/licenses/>.
*/
#include "dcp.h"
#include "mono_picture_frame.h"
#include "cpl.h"
#include "decrypted_kdm.h"
#include "encrypted_kdm.h"
#include "mono_picture_asset.h"
#include "mono_picture_asset_reader.h"
#include "reel_picture_asset.h"
#include "reel.h"
#include "test.h"
#include "openjpeg_image.h"
#include "rgb_xyz.h"
#include "colour_conversion.h"
#include <boost/test/unit_test.hpp>
#include <boost/scoped_array.hpp>
using std::pair;
using std::make_pair;
using boost::dynamic_pointer_cast;
using boost::shared_ptr;
using boost::scoped_array;
pair<uint8_t*, dcp::Size>
get_frame (dcp::DCP const & dcp)
{
shared_ptr<const dcp::Reel> reel = dcp.cpls().front()->reels().front ();
shared_ptr<dcp::PictureAsset> picture = reel->main_picture()->asset ();
BOOST_CHECK (picture);
shared_ptr<const dcp::MonoPictureAsset> mono_picture = dynamic_pointer_cast<const dcp::MonoPictureAsset> (picture);
shared_ptr<const dcp::MonoPictureAssetReader> reader = mono_picture->start_read ();
shared_ptr<const dcp::MonoPictureFrame> j2k_frame = reader->get_frame (0);
shared_ptr<dcp::OpenJPEGImage> xyz = j2k_frame->xyz_image();
uint8_t* argb = new uint8_t[xyz->size().width * xyz->size().height * 4];
dcp::xyz_to_rgba (j2k_frame->xyz_image(), dcp::ColourConversion::srgb_to_xyz(), argb, xyz->size().width * 4);
return make_pair (argb, xyz->size ());
}
/** Decrypt an encrypted test DCP and check that its first frame is the same as the unencrypted version */
BOOST_AUTO_TEST_CASE (decryption_test)
{
boost::filesystem::path plaintext_path = private_test;
plaintext_path /= "TONEPLATES-SMPTE-PLAINTEXT_TST_F_XX-XX_ITL-TD_51-XX_2K_WOE_20111001_WOE_OV";
dcp::DCP plaintext (plaintext_path.string ());
plaintext.read ();
BOOST_CHECK_EQUAL (plaintext.encrypted (), false);
boost::filesystem::path encrypted_path = private_test;
encrypted_path /= "TONEPLATES-SMPTE-ENCRYPTED_TST_F_XX-XX_ITL-TD_51-XX_2K_WOE_20111001_WOE_OV";
dcp::DCP encrypted (encrypted_path.string ());
encrypted.read ();
BOOST_CHECK_EQUAL (encrypted.encrypted (), true);
dcp::DecryptedKDM kdm (
dcp::EncryptedKDM (
dcp::file_to_string ("test/data/kdm_TONEPLATES-SMPTE-ENC_.smpte-430-2.ROOT.NOT_FOR_PRODUCTION_20130706_20230702_CAR_OV_t1_8971c838.xml")
),
dcp::file_to_string ("test/data/private.key")
);
encrypted.add (kdm);
pair<uint8_t *, dcp::Size> plaintext_frame = get_frame (plaintext);
pair<uint8_t *, dcp::Size> encrypted_frame = get_frame (encrypted);
/* Check that plaintext and encrypted are the same */
BOOST_CHECK_EQUAL (plaintext_frame.second, encrypted_frame.second);
BOOST_CHECK_EQUAL (
memcmp (
plaintext_frame.first,
encrypted_frame.first,
plaintext_frame.second.width * plaintext_frame.second.height * 4
),
0
);
delete[] plaintext_frame.first;
delete[] encrypted_frame.first;
}
/** Load in a KDM that didn't work at first */
BOOST_AUTO_TEST_CASE (failing_kdm_test)
{
dcp::DecryptedKDM kdm (
dcp::EncryptedKDM (dcp::file_to_string ("test/data/target.pem.crt.de5d4eba-e683-41ca-bdda-aa4ad96af3f4.kdm.xml")),
dcp::file_to_string ("test/data/private.key")
);
}
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