2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include <boost/filesystem.hpp>
25 #include "KM_fileio.h"
26 #include "picture_asset.h"
30 using namespace boost;
31 using namespace libdcp;
33 PictureAsset::PictureAsset (list<string> const & files, string p, int fps, int len, int w, int h)
38 ASDCP::JP2K::CodestreamParser j2k_parser;
39 ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
40 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (files.front().c_str(), frame_buffer))) {
41 throw runtime_error ("could not open J2K file for reading");
44 ASDCP::JP2K::PictureDescriptor picture_desc;
45 j2k_parser.FillPictureDescriptor (picture_desc);
46 /* XXX: we round for DCP: not sure if this is right */
47 picture_desc.EditRate = ASDCP::Rational (_fps, 1);
49 ASDCP::WriterInfo writer_info;
50 fill_writer_info (&writer_info);
52 ASDCP::JP2K::MXFWriter mxf_writer;
53 if (ASDCP_FAILURE (mxf_writer.OpenWrite (_mxf_path.c_str(), writer_info, picture_desc))) {
54 throw runtime_error ("could not open MXF for writing");
58 for (list<string>::const_iterator i = files.begin(); i != files.end(); ++i) {
59 if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (i->c_str(), frame_buffer))) {
60 throw runtime_error ("could not open J2K file for reading");
63 /* XXX: passing 0 to WriteFrame ok? */
64 if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, 0, 0))) {
65 throw runtime_error ("error in writing video MXF");
69 Progress (float (j) / files.size ());
72 if (ASDCP_FAILURE (mxf_writer.Finalize())) {
73 throw runtime_error ("error in finalising video MXF");
76 _digest = make_digest (_mxf_path);
80 PictureAsset::write_to_cpl (ostream& s) const
82 s << " <MainPicture>\n"
83 << " <Id>" << _uuid << "</Id>\n"
84 << " <AnnotationText>" << filesystem::path(_mxf_path).filename() << "</AnnotationText>\n"
85 << " <EditRate>" << _fps << "</EditRate>\n"
86 << " <IntrinsicDuration>" << _length << "</IntrinsicDuration>\n"
87 << " <EntryPoint>0</EntryPoint>\n"
88 << " <Duration>" << _length << "</Duration>\n"
89 << " <FrameRate>" << _fps << "</FrameRate>\n"
90 << " <ScreenAspectRatio>" << _width << " " << _height << "</ScreenAspectRatio>\n"
91 << " </MainPicture>\n";