2 Copyright (C) 2013-2015 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.
20 #include "image_content.h"
21 #include "image_examiner.h"
24 #include "exceptions.h"
27 #include "compose.hpp"
28 #include <dcp/openjpeg_image.h>
29 #include <dcp/exceptions.h>
39 using boost::shared_ptr;
40 using boost::optional;
42 ImageExaminer::ImageExaminer (shared_ptr<const Film> film, shared_ptr<const ImageContent> content, shared_ptr<Job>)
44 , _image_content (content)
46 #ifdef DCPOMATIC_HAVE_MAGICKCORE_NAMESPACE
47 using namespace MagickCore;
49 boost::filesystem::path path = content->path(0).string ();
50 if (valid_j2k_file (path)) {
51 boost::uintmax_t size = boost::filesystem::file_size (path);
52 FILE* f = fopen_boost (path, "rb");
54 throw FileError ("Could not open file for reading", path);
56 uint8_t* buffer = new uint8_t[size];
57 fread (buffer, 1, size, f);
60 _video_size = dcp::decompress_j2k (buffer, size, 0)->size ();
61 } catch (dcp::DCPReadError& e) {
63 throw DecodeError (String::compose (_("Could not decode JPEG2000 file %1 (%2)"), path, e.what ()));
67 Magick::Image* image = new Magick::Image (content->path(0).string());
68 _video_size = dcp::Size (image->columns(), image->rows());
72 if (content->still ()) {
73 _video_length = Config::instance()->default_still_length() * video_frame_rate().get_value_or (film->video_frame_rate ());
75 _video_length = _image_content->number_of_paths ();
80 ImageExaminer::video_size () const
82 return _video_size.get ();
86 ImageExaminer::video_frame_rate () const
88 if (_image_content->video_frame_rate()) {
89 /* The content already knows what frame rate it should be */
90 return _image_content->video_frame_rate().get();
94 return optional<double> ();
98 ImageExaminer::yuv () const
100 /* We never convert ImageSource from YUV to RGB (though maybe sometimes we should)
101 so it makes sense to just say they are never YUV so the option of a conversion
102 to RGB is not offered.