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_j2k_picture_asset.h"
46 #include "mono_j2k_picture_asset_reader.h"
47 #include "mono_j2k_picture_asset_writer.h"
48 #include "mono_j2k_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 Kumu::FileReaderFactory factory;
70 ASDCP::JP2K::MXFReader reader(factory);
71 auto r = reader.OpenRead(dcp::filesystem::fix_long_path(file).string().c_str());
72 if (ASDCP_FAILURE(r)) {
73 boost::throw_exception (MXFFileError("could not open MXF file for reading", file.string(), r));
76 ASDCP::JP2K::PictureDescriptor desc;
77 if (ASDCP_FAILURE (reader.FillPictureDescriptor(desc))) {
78 boost::throw_exception (ReadError("could not read video MXF information"));
81 read_picture_descriptor (desc);
83 ASDCP::WriterInfo info;
84 if (ASDCP_FAILURE (reader.FillWriterInfo (info))) {
85 boost::throw_exception (ReadError("could not read video MXF information"));
88 _id = read_writer_info (info);
92 MonoPictureAsset::MonoPictureAsset (Fraction edit_rate, Standard standard)
93 : PictureAsset (edit_rate, standard)
100 storing_note_handler (list<pair<NoteType, string>>& notes, NoteType t, string s)
102 notes.push_back (make_pair (t, s));
107 MonoPictureAsset::equals(shared_ptr<const Asset> other, EqualityOptions const& opt, NoteHandler note) const
109 if (!dynamic_pointer_cast<const MonoPictureAsset>(other)) {
113 Kumu::FileReaderFactory factory;
114 ASDCP::JP2K::MXFReader reader_A(factory);
116 auto r = reader_A.OpenRead(dcp::filesystem::fix_long_path(*_file).string().c_str());
117 if (ASDCP_FAILURE(r)) {
118 boost::throw_exception (MXFFileError("could not open MXF file for reading", _file->string(), r));
121 ASDCP::JP2K::MXFReader reader_B(factory);
122 DCP_ASSERT (other->file ());
123 r = reader_B.OpenRead(dcp::filesystem::fix_long_path(*other->file()).string().c_str());
124 if (ASDCP_FAILURE (r)) {
125 boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file()->string(), r));
128 ASDCP::JP2K::PictureDescriptor desc_A;
129 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
130 boost::throw_exception (ReadError ("could not read video MXF information"));
132 ASDCP::JP2K::PictureDescriptor desc_B;
133 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
134 boost::throw_exception (ReadError ("could not read video MXF information"));
137 if (!descriptor_equals (desc_A, desc_B, note)) {
141 auto other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
142 DCP_ASSERT (other_picture);
146 auto reader = start_read ();
147 auto other_reader = other_picture->start_read ();
150 #pragma omp parallel for
153 for (int i = 0; i < _intrinsic_duration; ++i) {
154 if (i >= other_picture->intrinsic_duration()) {
158 if (result || opt.keep_going) {
160 auto frame_A = reader->get_frame (i);
161 auto frame_B = other_reader->get_frame (i);
163 list<pair<NoteType, string>> notes;
165 if (!frame_buffer_equals (
166 i, opt, bind (&storing_note_handler, boost::ref(notes), _1, _2),
167 frame_A->data(), frame_A->size(),
168 frame_B->data(), frame_B->size()
177 note (NoteType::PROGRESS, String::compose("Compared video frame %1 of %2", i, _intrinsic_duration));
178 for (auto const& i: notes) {
179 note (i.first, i.second);
189 shared_ptr<PictureAssetWriter>
190 MonoPictureAsset::start_write(boost::filesystem::path file, Behaviour behaviour)
192 /* Can't use make_shared here as the MonoPictureAssetWriter constructor is private */
193 return shared_ptr<MonoPictureAssetWriter>(new MonoPictureAssetWriter(this, file, behaviour == Behaviour::OVERWRITE_EXISTING));
196 shared_ptr<MonoPictureAssetReader>
197 MonoPictureAsset::start_read () const
199 /* Can't use make_shared here as the MonoPictureAssetReader constructor is private */
200 return shared_ptr<MonoPictureAssetReader>(new MonoPictureAssetReader(this, key(), standard()));
205 MonoPictureAsset::cpl_node_name () const
207 return "MainPicture";