2 Copyright (C) 2012-2016 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.
34 #include "mono_picture_asset.h"
35 #include "mono_picture_asset_writer.h"
36 #include "mono_picture_asset_reader.h"
38 #include "KM_fileio.h"
39 #include "exceptions.h"
40 #include "dcp_assert.h"
41 #include "mono_picture_frame.h"
42 #include "compose.hpp"
48 using boost::shared_ptr;
49 using boost::dynamic_pointer_cast;
52 MonoPictureAsset::MonoPictureAsset (boost::filesystem::path file)
55 ASDCP::JP2K::MXFReader reader;
56 Kumu::Result_t r = reader.OpenRead (file.string().c_str());
57 if (ASDCP_FAILURE (r)) {
58 boost::throw_exception (MXFFileError ("could not open MXF file for reading", file.string(), r));
61 ASDCP::JP2K::PictureDescriptor desc;
62 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
63 boost::throw_exception (DCPReadError ("could not read video MXF information"));
66 read_picture_descriptor (desc);
68 ASDCP::WriterInfo info;
69 if (ASDCP_FAILURE (reader.FillWriterInfo (info))) {
70 boost::throw_exception (DCPReadError ("could not read video MXF information"));
73 _id = read_writer_info (info);
76 MonoPictureAsset::MonoPictureAsset (Fraction edit_rate)
77 : PictureAsset (edit_rate)
83 storing_note_handler (list<pair<NoteType, string> >& notes, NoteType t, string s)
85 notes.push_back (make_pair (t, s));
89 MonoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, NoteHandler note) const
91 if (!dynamic_pointer_cast<const MonoPictureAsset> (other)) {
95 ASDCP::JP2K::MXFReader reader_A;
96 Kumu::Result_t r = reader_A.OpenRead (_file.string().c_str());
97 if (ASDCP_FAILURE (r)) {
98 boost::throw_exception (MXFFileError ("could not open MXF file for reading", _file.string(), r));
101 ASDCP::JP2K::MXFReader reader_B;
102 r = reader_B.OpenRead (other->file().string().c_str());
103 if (ASDCP_FAILURE (r)) {
104 boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file().string(), r));
107 ASDCP::JP2K::PictureDescriptor desc_A;
108 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
109 boost::throw_exception (DCPReadError ("could not read video MXF information"));
111 ASDCP::JP2K::PictureDescriptor desc_B;
112 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
113 boost::throw_exception (DCPReadError ("could not read video MXF information"));
116 if (!descriptor_equals (desc_A, desc_B, note)) {
120 shared_ptr<const MonoPictureAsset> other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
121 DCP_ASSERT (other_picture);
126 #pragma omp parallel for
129 shared_ptr<MonoPictureAssetReader> reader = start_read ();
130 shared_ptr<MonoPictureAssetReader> other_reader = other_picture->start_read ();
132 for (int i = 0; i < _intrinsic_duration; ++i) {
133 if (i >= other_picture->intrinsic_duration()) {
137 if (result || opt.keep_going) {
139 shared_ptr<const MonoPictureFrame> frame_A = reader->get_frame (i);
140 shared_ptr<const MonoPictureFrame> frame_B = other_reader->get_frame (i);
142 list<pair<NoteType, string> > notes;
144 if (!frame_buffer_equals (
145 i, opt, bind (&storing_note_handler, boost::ref(notes), _1, _2),
146 frame_A->j2k_data(), frame_A->j2k_size(),
147 frame_B->j2k_data(), frame_B->j2k_size()
156 note (DCP_PROGRESS, String::compose ("Compared video frame %1 of %2", i, _intrinsic_duration));
157 for (list<pair<NoteType, string> >::const_iterator i = notes.begin(); i != notes.end(); ++i) {
158 note (i->first, i->second);
167 shared_ptr<PictureAssetWriter>
168 MonoPictureAsset::start_write (boost::filesystem::path file, Standard standard, bool overwrite)
170 /* XXX: can't we use shared_ptr here? */
171 return shared_ptr<MonoPictureAssetWriter> (new MonoPictureAssetWriter (this, file, standard, overwrite));
174 shared_ptr<MonoPictureAssetReader>
175 MonoPictureAsset::start_read () const
177 return shared_ptr<MonoPictureAssetReader> (new MonoPictureAssetReader (this));
181 MonoPictureAsset::cpl_node_name () const
183 return "MainPicture";