2 Copyright (C) 2013 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.
21 #include <boost/lexical_cast.hpp>
23 #include "moving_image_content.h"
24 #include "moving_image_examiner.h"
27 #include "exceptions.h"
34 using boost::shared_ptr;
35 using boost::lexical_cast;
37 MovingImageExaminer::MovingImageExaminer (shared_ptr<const Film> film, shared_ptr<const MovingImageContent> content, shared_ptr<Job> job)
38 : MovingImage (content)
42 list<unsigned int> frames;
43 size_t const N = content->number_of_paths ();
46 for (size_t i = 0; i < N; ++i) {
47 boost::filesystem::path const p = content->path (i);
48 frames.push_back (lexical_cast<int> (p.stem().string()));
51 using namespace MagickCore;
52 Magick::Image* image = new Magick::Image (p.string());
53 _video_size = libdcp::Size (image->columns(), image->rows());
57 job->set_progress (float (i) / N);
62 if (frames.size() < 2) {
63 throw StringError (String::compose (_("only %1 file(s) found in moving image directory"), frames.size ()));
66 if (frames.front() != 0 && frames.front() != 1) {
67 throw StringError (String::compose (_("first frame in moving image directory is number %1"), frames.front ()));
70 if (frames.back() != frames.size() && frames.back() != (frames.size() - 1)) {
71 throw StringError (String::compose (_("there are %1 images in the directory but the last one is number %2"), frames.size(), frames.back ()));
74 _video_length = frames.size ();
78 MovingImageExaminer::video_size () const
80 return _video_size.get ();
84 MovingImageExaminer::video_length () const
90 MovingImageExaminer::video_frame_rate () const