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
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35 /** @file src/mono_picture_asset.cc
36 * @brief MonoPictureAsset class
40 #include "compose.hpp"
41 #include "dcp_assert.h"
42 #include "equality_options.h"
43 #include "exceptions.h"
44 #include "mono_picture_asset.h"
45 #include "mono_picture_asset_reader.h"
46 #include "mono_picture_asset_writer.h"
47 #include "mono_picture_frame.h"
48 #include <asdcp/AS_DCP.h>
49 #include <asdcp/KM_fileio.h>
56 using std::shared_ptr;
57 using std::dynamic_pointer_cast;
58 using std::make_shared;
59 #if BOOST_VERSION >= 106100
60 using namespace boost::placeholders;
65 MonoPictureAsset::MonoPictureAsset (boost::filesystem::path file)
68 ASDCP::JP2K::MXFReader reader;
69 auto r = reader.OpenRead (file.string().c_str());
70 if (ASDCP_FAILURE(r)) {
71 boost::throw_exception (MXFFileError("could not open MXF file for reading", file.string(), r));
74 ASDCP::JP2K::PictureDescriptor desc;
75 if (ASDCP_FAILURE (reader.FillPictureDescriptor(desc))) {
76 boost::throw_exception (ReadError("could not read video MXF information"));
79 read_picture_descriptor (desc);
81 ASDCP::WriterInfo info;
82 if (ASDCP_FAILURE (reader.FillWriterInfo (info))) {
83 boost::throw_exception (ReadError("could not read video MXF information"));
86 _id = read_writer_info (info);
90 MonoPictureAsset::MonoPictureAsset (Fraction edit_rate, Standard standard)
91 : PictureAsset (edit_rate, standard)
98 storing_note_handler (list<pair<NoteType, string>>& notes, NoteType t, string s)
100 notes.push_back (make_pair (t, s));
105 MonoPictureAsset::equals(shared_ptr<const Asset> other, EqualityOptions const& opt, NoteHandler note) const
107 if (!dynamic_pointer_cast<const MonoPictureAsset>(other)) {
111 ASDCP::JP2K::MXFReader reader_A;
113 auto r = reader_A.OpenRead (_file->string().c_str());
114 if (ASDCP_FAILURE(r)) {
115 boost::throw_exception (MXFFileError("could not open MXF file for reading", _file->string(), r));
118 ASDCP::JP2K::MXFReader reader_B;
119 DCP_ASSERT (other->file ());
120 r = reader_B.OpenRead (other->file()->string().c_str());
121 if (ASDCP_FAILURE (r)) {
122 boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file()->string(), r));
125 ASDCP::JP2K::PictureDescriptor desc_A;
126 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
127 boost::throw_exception (ReadError ("could not read video MXF information"));
129 ASDCP::JP2K::PictureDescriptor desc_B;
130 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
131 boost::throw_exception (ReadError ("could not read video MXF information"));
134 if (!descriptor_equals (desc_A, desc_B, note)) {
138 auto other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
139 DCP_ASSERT (other_picture);
143 auto reader = start_read ();
144 auto other_reader = other_picture->start_read ();
147 #pragma omp parallel for
150 for (int i = 0; i < _intrinsic_duration; ++i) {
151 if (i >= other_picture->intrinsic_duration()) {
155 if (result || opt.keep_going) {
157 auto frame_A = reader->get_frame (i);
158 auto frame_B = other_reader->get_frame (i);
160 list<pair<NoteType, string>> notes;
162 if (!frame_buffer_equals (
163 i, opt, bind (&storing_note_handler, boost::ref(notes), _1, _2),
164 frame_A->data(), frame_A->size(),
165 frame_B->data(), frame_B->size()
174 note (NoteType::PROGRESS, String::compose("Compared video frame %1 of %2", i, _intrinsic_duration));
175 for (auto const& i: notes) {
176 note (i.first, i.second);
186 shared_ptr<PictureAssetWriter>
187 MonoPictureAsset::start_write(boost::filesystem::path file, Behaviour behaviour)
189 /* Can't use make_shared here as the MonoPictureAssetWriter constructor is private */
190 return shared_ptr<MonoPictureAssetWriter>(new MonoPictureAssetWriter(this, file, behaviour == Behaviour::OVERWRITE_EXISTING));
193 shared_ptr<MonoPictureAssetReader>
194 MonoPictureAsset::start_read () const
196 /* Can't use make_shared here as the MonoPictureAssetReader constructor is private */
197 return shared_ptr<MonoPictureAssetReader>(new MonoPictureAssetReader(this, key(), standard()));
202 MonoPictureAsset::cpl_node_name () const
204 return "MainPicture";