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/*
Copyright (C) 2013 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.
*/
#include <iostream>
#include <boost/lexical_cast.hpp>
#include <Magick++.h>
#include "image_content.h"
#include "image_examiner.h"
#include "film.h"
#include "job.h"
#include "exceptions.h"
#include "config.h"
#include "i18n.h"
using std::cout;
using std::list;
using std::sort;
using boost::shared_ptr;
using boost::lexical_cast;
using boost::bad_lexical_cast;
ImageExaminer::ImageExaminer (shared_ptr<const Film> film, shared_ptr<const ImageContent> content, shared_ptr<Job> job)
: _film (film)
, _image_content (content)
, _video_length (0)
{
list<unsigned int> frames;
size_t const N = content->number_of_paths ();
for (size_t i = 0; i < N; ++i) {
boost::filesystem::path const p = content->path (i);
try {
frames.push_back (lexical_cast<int> (p.stem().string()));
} catch (bad_lexical_cast &) {
/* We couldn't turn that filename into a number; never mind */
}
if (!_video_size) {
using namespace MagickCore;
Magick::Image* image = new Magick::Image (p.string());
_video_size = libdcp::Size (image->columns(), image->rows());
delete image;
}
job->set_progress (float (i) / N);
}
frames.sort ();
if (N > 1 && frames.front() != 0 && frames.front() != 1) {
throw StringError (String::compose (_("first frame in moving image directory is number %1"), frames.front ()));
}
if (N > 1 && frames.back() != frames.size() && frames.back() != (frames.size() - 1)) {
throw StringError (String::compose (_("there are %1 images in the directory but the last one is number %2"), frames.size(), frames.back ()));
}
if (content->still ()) {
_video_length = Config::instance()->default_still_length() * video_frame_rate();
} else {
_video_length = _image_content->number_of_paths ();
}
}
libdcp::Size
ImageExaminer::video_size () const
{
return _video_size.get ();
}
float
ImageExaminer::video_frame_rate () const
{
boost::shared_ptr<const Film> f = _film.lock ();
if (!f) {
return 24;
}
return f->video_frame_rate ();
}
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