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/>.
20 #include "mono_picture_asset.h"
21 #include "mono_picture_asset_writer.h"
22 #include "mono_picture_asset_reader.h"
24 #include "KM_fileio.h"
25 #include "exceptions.h"
26 #include "dcp_assert.h"
27 #include "mono_picture_frame.h"
28 #include "compose.hpp"
34 using boost::shared_ptr;
35 using boost::dynamic_pointer_cast;
38 MonoPictureAsset::MonoPictureAsset (boost::filesystem::path file)
41 ASDCP::JP2K::MXFReader reader;
42 Kumu::Result_t r = reader.OpenRead (file.string().c_str());
43 if (ASDCP_FAILURE (r)) {
44 boost::throw_exception (MXFFileError ("could not open MXF file for reading", file.string(), r));
47 ASDCP::JP2K::PictureDescriptor desc;
48 if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) {
49 boost::throw_exception (DCPReadError ("could not read video MXF information"));
52 read_picture_descriptor (desc);
54 ASDCP::WriterInfo info;
55 if (ASDCP_FAILURE (reader.FillWriterInfo (info))) {
56 boost::throw_exception (DCPReadError ("could not read video MXF information"));
59 _id = read_writer_info (info);
62 MonoPictureAsset::MonoPictureAsset (Fraction edit_rate)
63 : PictureAsset (edit_rate)
69 storing_note_handler (list<pair<NoteType, string> >& notes, NoteType t, string s)
71 notes.push_back (make_pair (t, s));
75 MonoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, NoteHandler note) const
77 if (!dynamic_pointer_cast<const MonoPictureAsset> (other)) {
81 ASDCP::JP2K::MXFReader reader_A;
82 Kumu::Result_t r = reader_A.OpenRead (_file.string().c_str());
83 if (ASDCP_FAILURE (r)) {
84 boost::throw_exception (MXFFileError ("could not open MXF file for reading", _file.string(), r));
87 ASDCP::JP2K::MXFReader reader_B;
88 r = reader_B.OpenRead (other->file().string().c_str());
89 if (ASDCP_FAILURE (r)) {
90 boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file().string(), r));
93 ASDCP::JP2K::PictureDescriptor desc_A;
94 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
95 boost::throw_exception (DCPReadError ("could not read video MXF information"));
97 ASDCP::JP2K::PictureDescriptor desc_B;
98 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
99 boost::throw_exception (DCPReadError ("could not read video MXF information"));
102 if (!descriptor_equals (desc_A, desc_B, note)) {
106 shared_ptr<const MonoPictureAsset> other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
107 DCP_ASSERT (other_picture);
112 #pragma omp parallel for
115 shared_ptr<MonoPictureAssetReader> reader = start_read ();
116 shared_ptr<MonoPictureAssetReader> other_reader = other_picture->start_read ();
118 for (int i = 0; i < _intrinsic_duration; ++i) {
119 if (i >= other_picture->intrinsic_duration()) {
123 if (result || opt.keep_going) {
125 shared_ptr<const MonoPictureFrame> frame_A = reader->get_frame (i);
126 shared_ptr<const MonoPictureFrame> frame_B = other_reader->get_frame (i);
128 list<pair<NoteType, string> > notes;
130 if (!frame_buffer_equals (
131 i, opt, bind (&storing_note_handler, boost::ref(notes), _1, _2),
132 frame_A->j2k_data(), frame_A->j2k_size(),
133 frame_B->j2k_data(), frame_B->j2k_size()
142 note (DCP_PROGRESS, String::compose ("Compared video frame %1 of %2", i, _intrinsic_duration));
143 for (list<pair<NoteType, string> >::const_iterator i = notes.begin(); i != notes.end(); ++i) {
144 note (i->first, i->second);
153 shared_ptr<PictureAssetWriter>
154 MonoPictureAsset::start_write (boost::filesystem::path file, Standard standard, bool overwrite)
156 /* XXX: can't we use shared_ptr here? */
157 return shared_ptr<MonoPictureAssetWriter> (new MonoPictureAssetWriter (this, file, standard, overwrite));
160 shared_ptr<MonoPictureAssetReader>
161 MonoPictureAsset::start_read () const
163 return shared_ptr<MonoPictureAssetReader> (new MonoPictureAssetReader (this));
167 MonoPictureAsset::cpl_node_name () const
169 return "MainPicture";