2 Copyright (C) 2012-2014 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/>.
21 #include "mono_picture_asset.h"
22 #include "mono_picture_asset_writer.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)
68 shared_ptr<const MonoPictureFrame>
69 MonoPictureAsset::get_frame (int n) const
71 return shared_ptr<const MonoPictureFrame> (new MonoPictureFrame (_file, n, _decryption_context));
75 storing_note_handler (list<pair<NoteType, string> >& notes, NoteType t, string s)
77 notes.push_back (make_pair (t, s));
81 MonoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, NoteHandler note) const
83 if (!dynamic_pointer_cast<const MonoPictureAsset> (other)) {
87 ASDCP::JP2K::MXFReader reader_A;
88 Kumu::Result_t r = reader_A.OpenRead (_file.string().c_str());
89 if (ASDCP_FAILURE (r)) {
90 boost::throw_exception (MXFFileError ("could not open MXF file for reading", _file.string(), r));
93 ASDCP::JP2K::MXFReader reader_B;
94 r = reader_B.OpenRead (other->file().string().c_str());
95 if (ASDCP_FAILURE (r)) {
96 boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file().string(), r));
99 ASDCP::JP2K::PictureDescriptor desc_A;
100 if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) {
101 boost::throw_exception (DCPReadError ("could not read video MXF information"));
103 ASDCP::JP2K::PictureDescriptor desc_B;
104 if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) {
105 boost::throw_exception (DCPReadError ("could not read video MXF information"));
108 if (!descriptor_equals (desc_A, desc_B, note)) {
112 shared_ptr<const MonoPictureAsset> other_picture = dynamic_pointer_cast<const MonoPictureAsset> (other);
113 DCP_ASSERT (other_picture);
118 #pragma omp parallel for
121 for (int i = 0; i < _intrinsic_duration; ++i) {
122 if (i >= other_picture->intrinsic_duration()) {
126 if (result || opt.keep_going) {
128 shared_ptr<const MonoPictureFrame> frame_A = get_frame (i);
129 shared_ptr<const MonoPictureFrame> frame_B = other_picture->get_frame (i);
131 list<pair<NoteType, string> > notes;
133 if (!frame_buffer_equals (
134 i, opt, bind (&storing_note_handler, boost::ref(notes), _1, _2),
135 frame_A->j2k_data(), frame_A->j2k_size(),
136 frame_B->j2k_data(), frame_B->j2k_size()
145 note (DCP_PROGRESS, String::compose ("Compared video frame %1 of %2", i, _intrinsic_duration));
146 for (list<pair<NoteType, string> >::const_iterator i = notes.begin(); i != notes.end(); ++i) {
147 note (i->first, i->second);
156 shared_ptr<PictureAssetWriter>
157 MonoPictureAsset::start_write (boost::filesystem::path file, Standard standard, bool overwrite)
159 /* XXX: can't we use shared_ptr here? */
160 return shared_ptr<MonoPictureAssetWriter> (new MonoPictureAssetWriter (this, file, standard, overwrite));
164 MonoPictureAsset::cpl_node_name () const
166 return "MainPicture";