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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/picture_asset.cc
* @brief An asset made up of JPEG2000 files
*/
#include <list>
#include <stdexcept>
#include <iostream>
#include <sstream>
#include <boost/filesystem.hpp>
#include "AS_DCP.h"
#include "KM_fileio.h"
#include "picture_asset.h"
#include "util.h"
using namespace std;
using namespace boost;
using namespace libdcp;
PictureAsset::PictureAsset (
list<string> const & files,
string mxf_path,
sigc::signal1<void, float>* progress,
int fps,
int length,
int width,
int height)
: Asset (mxf_path, progress, fps, length)
, _width (width)
, _height (height)
{
ASDCP::JP2K::CodestreamParser j2k_parser;
ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (files.front().c_str(), frame_buffer))) {
stringstream s;
s << "could not open " << files.front() << " for reading";
throw runtime_error (s.str());
}
ASDCP::JP2K::PictureDescriptor picture_desc;
j2k_parser.FillPictureDescriptor (picture_desc);
picture_desc.EditRate = ASDCP::Rational (_fps, 1);
ASDCP::WriterInfo writer_info;
fill_writer_info (&writer_info);
ASDCP::JP2K::MXFWriter mxf_writer;
if (ASDCP_FAILURE (mxf_writer.OpenWrite (_mxf_path.c_str(), writer_info, picture_desc))) {
throw runtime_error ("could not open MXF for writing");
}
int j = 0;
for (list<string>::const_iterator i = files.begin(); i != files.end(); ++i) {
if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (i->c_str(), frame_buffer))) {
stringstream s;
s << "could not open " << *i << " for reading";
throw runtime_error (s.str());
}
/* XXX: passing 0 to WriteFrame ok? */
if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, 0, 0))) {
throw runtime_error ("error in writing video MXF");
}
++j;
(*_progress) (0.5 * float (j) / files.size ());
}
if (ASDCP_FAILURE (mxf_writer.Finalize())) {
throw runtime_error ("error in finalising video MXF");
}
_digest = make_digest (_mxf_path, _progress);
}
void
PictureAsset::write_to_cpl (ostream& s) const
{
s << " <MainPicture>\n"
<< " <Id>urn:uuid:" << _uuid << "</Id>\n"
<< " <AnnotationText>" << filesystem::path(_mxf_path).filename() << "</AnnotationText>\n"
<< " <EditRate>" << _fps << " 1</EditRate>\n"
<< " <IntrinsicDuration>" << _length << "</IntrinsicDuration>\n"
<< " <EntryPoint>0</EntryPoint>\n"
<< " <Duration>" << _length << "</Duration>\n"
<< " <FrameRate>" << _fps << " 1</FrameRate>\n"
<< " <ScreenAspectRatio>" << _width << " " << _height << "</ScreenAspectRatio>\n"
<< " </MainPicture>\n";
}
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