2 Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
30 version. If you delete this exception statement from all source
31 files in the program, then also delete it here.
35 /** @file src/stereo_picture_asset.cc
36 * @brief StereoPictureAsset class
40 #include "dcp_assert.h"
41 #include "equality_options.h"
42 #include "exceptions.h"
43 #include "stereo_picture_asset.h"
44 #include "stereo_picture_asset_reader.h"
45 #include "stereo_picture_asset_writer.h"
46 #include "stereo_picture_frame.h"
47 #include <asdcp/AS_DCP.h>
53 using std::shared_ptr;
54 using std::dynamic_pointer_cast;
58 StereoPictureAsset::StereoPictureAsset (boost::filesystem::path file)
61 ASDCP::JP2K::MXFSReader reader;
62 auto r = reader.OpenRead (file.string().c_str());
63 if (ASDCP_FAILURE(r)) {
64 boost::throw_exception (MXFFileError("could not open MXF file for reading", file.string(), r));
67 ASDCP::JP2K::PictureDescriptor desc;
68 if (ASDCP_FAILURE (reader.FillPictureDescriptor(desc))) {
69 boost::throw_exception (ReadError("could not read video MXF information"));
72 read_picture_descriptor (desc);
74 ASDCP::WriterInfo info;
75 if (ASDCP_FAILURE (reader.FillWriterInfo(info))) {
76 boost::throw_exception (ReadError("could not read video MXF information"));
79 _id = read_writer_info (info);
83 StereoPictureAsset::StereoPictureAsset (Fraction edit_rate, Standard standard)
84 : PictureAsset (edit_rate, standard)
90 shared_ptr<PictureAssetWriter>
91 StereoPictureAsset::start_write(boost::filesystem::path file, Behaviour behaviour)
93 return shared_ptr<StereoPictureAssetWriter>(new StereoPictureAssetWriter(this, file, behaviour == Behaviour::OVERWRITE_EXISTING));
97 shared_ptr<StereoPictureAssetReader>
98 StereoPictureAsset::start_read () const
100 return shared_ptr<StereoPictureAssetReader> (new StereoPictureAssetReader(this, key(), standard()));
105 StereoPictureAsset::equals(shared_ptr<const Asset> other, EqualityOptions const& opt, NoteHandler note) const
107 ASDCP::JP2K::MXFSReader reader_A;
109 auto r = reader_A.OpenRead (file()->string().c_str());
110 if (ASDCP_FAILURE (r)) {
111 boost::throw_exception (MXFFileError ("could not open MXF file for reading", file()->string(), r));
114 ASDCP::JP2K::MXFSReader reader_B;
115 DCP_ASSERT (other->file());
116 r = reader_B.OpenRead (other->file()->string().c_str());
117 if (ASDCP_FAILURE (r)) {
118 boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file()->string(), r));
121 ASDCP::JP2K::PictureDescriptor desc_A;
122 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
123 boost::throw_exception (ReadError ("could not read video MXF information"));
125 ASDCP::JP2K::PictureDescriptor desc_B;
126 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
127 boost::throw_exception (ReadError ("could not read video MXF information"));
130 if (!descriptor_equals (desc_A, desc_B, note)) {
134 auto other_picture = dynamic_pointer_cast<const StereoPictureAsset> (other);
135 DCP_ASSERT (other_picture);
137 auto reader = start_read ();
138 auto other_reader = other_picture->start_read ();
142 for (int i = 0; i < _intrinsic_duration; ++i) {
143 shared_ptr<const StereoPictureFrame> frame_A;
144 shared_ptr<const StereoPictureFrame> frame_B;
146 frame_A = reader->get_frame (i);
147 frame_B = other_reader->get_frame (i);
148 } catch (ReadError& e) {
149 /* If there was a problem reading the frame data we'll just assume
150 the two frames are not equal.
152 note (NoteType::ERROR, e.what ());
156 if (!frame_buffer_equals (
158 frame_A->left()->data(), frame_A->left()->size(),
159 frame_B->left()->data(), frame_B->left()->size()
162 if (!opt.keep_going) {
167 if (!frame_buffer_equals (
169 frame_A->right()->data(), frame_A->right()->size(),
170 frame_B->right()->data(), frame_B->right()->size()
173 if (!opt.keep_going) {