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 "filesystem.h"
45 #include "mono_picture_asset.h"
46 #include "mono_picture_asset_reader.h"
47 #include "mono_picture_asset_writer.h"
48 #include "mono_picture_frame.h"
49 #include <asdcp/AS_DCP.h>
50 #include <asdcp/KM_fileio.h>
53 using std::dynamic_pointer_cast;
55 using std::make_shared;
57 using std::shared_ptr;
60 #if BOOST_VERSION >= 106100
61 using namespace boost::placeholders;
66 MonoPictureAsset::MonoPictureAsset (boost::filesystem::path file)
69 ASDCP::JP2K::MXFReader reader;
70 auto r = reader.OpenRead(dcp::filesystem::fix_long_path(file).string().c_str());
71 if (ASDCP_FAILURE(r)) {
72 boost::throw_exception (MXFFileError("could not open MXF file for reading", file.string(), r));
75 ASDCP::JP2K::PictureDescriptor desc;
76 if (ASDCP_FAILURE (reader.FillPictureDescriptor(desc))) {
77 boost::throw_exception (ReadError("could not read video MXF information"));
80 read_picture_descriptor (desc);
82 ASDCP::WriterInfo info;
83 if (ASDCP_FAILURE (reader.FillWriterInfo (info))) {
84 boost::throw_exception (ReadError("could not read video MXF information"));
87 _id = read_writer_info (info);
91 MonoPictureAsset::MonoPictureAsset (Fraction edit_rate, Standard standard)
92 : PictureAsset (edit_rate, standard)
99 storing_note_handler (list<pair<NoteType, string>>& notes, NoteType t, string s)
101 notes.push_back (make_pair (t, s));
106 MonoPictureAsset::equals(shared_ptr<const Asset> other, EqualityOptions const& opt, NoteHandler note) const
108 if (!dynamic_pointer_cast<const MonoPictureAsset>(other)) {
112 ASDCP::JP2K::MXFReader reader_A;
114 auto r = reader_A.OpenRead(dcp::filesystem::fix_long_path(*_file).string().c_str());
115 if (ASDCP_FAILURE(r)) {
116 boost::throw_exception (MXFFileError("could not open MXF file for reading", _file->string(), r));
119 ASDCP::JP2K::MXFReader reader_B;
120 DCP_ASSERT (other->file ());
121 r = reader_B.OpenRead(dcp::filesystem::fix_long_path(*other->file()).string().c_str());
122 if (ASDCP_FAILURE (r)) {
123 boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file()->string(), r));
126 ASDCP::JP2K::PictureDescriptor desc_A;
127 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
128 boost::throw_exception (ReadError ("could not read video MXF information"));
130 ASDCP::JP2K::PictureDescriptor desc_B;
131 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
132 boost::throw_exception (ReadError ("could not read video MXF information"));
135 if (!descriptor_equals (desc_A, desc_B, note)) {
139 auto other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
140 DCP_ASSERT (other_picture);
144 auto reader = start_read ();
145 auto other_reader = other_picture->start_read ();
148 #pragma omp parallel for
151 for (int i = 0; i < _intrinsic_duration; ++i) {
152 if (i >= other_picture->intrinsic_duration()) {
156 if (result || opt.keep_going) {
158 auto frame_A = reader->get_frame (i);
159 auto frame_B = other_reader->get_frame (i);
161 list<pair<NoteType, string>> notes;
163 if (!frame_buffer_equals (
164 i, opt, bind (&storing_note_handler, boost::ref(notes), _1, _2),
165 frame_A->data(), frame_A->size(),
166 frame_B->data(), frame_B->size()
175 note (NoteType::PROGRESS, String::compose("Compared video frame %1 of %2", i, _intrinsic_duration));
176 for (auto const& i: notes) {
177 note (i.first, i.second);
187 shared_ptr<PictureAssetWriter>
188 MonoPictureAsset::start_write(boost::filesystem::path file, Behaviour behaviour)
190 /* Can't use make_shared here as the MonoPictureAssetWriter constructor is private */
191 return shared_ptr<MonoPictureAssetWriter>(new MonoPictureAssetWriter(this, file, behaviour == Behaviour::OVERWRITE_EXISTING));
194 shared_ptr<MonoPictureAssetReader>
195 MonoPictureAsset::start_read () const
197 /* Can't use make_shared here as the MonoPictureAssetReader constructor is private */
198 return shared_ptr<MonoPictureAssetReader>(new MonoPictureAssetReader(this, key(), standard()));
203 MonoPictureAsset::cpl_node_name () const
205 return "MainPicture";