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.
21 #include <boost/filesystem.hpp>
23 #include "imagemagick_decoder.h"
26 #include "exceptions.h"
29 using boost::shared_ptr;
32 ImageMagickDecoder::ImageMagickDecoder (
33 boost::shared_ptr<Film> f, DecodeOptions o, Job* j)
35 , VideoDecoder (f, o, j)
37 if (boost::filesystem::is_directory (_film->content_path())) {
39 boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (_film->content_path());
40 i != boost::filesystem::directory_iterator();
43 if (still_image_file (i->path().string())) {
44 _files.push_back (i->path().string());
48 _files.push_back (_film->content_path ());
51 _iter = _files.begin ();
55 ImageMagickDecoder::native_size () const
57 if (_files.empty ()) {
58 throw DecodeError ("no still image files found");
61 /* Look at the first file and assume its size holds for all */
62 using namespace MagickCore;
63 Magick::Image* image = new Magick::Image (_film->content_path ());
64 libdcp::Size const s = libdcp::Size (image->columns(), image->rows());
71 ImageMagickDecoder::pass ()
73 if (_iter == _files.end()) {
74 if (video_frame() >= _film->still_duration_in_frames()) {
82 Magick::Image* magick_image = new Magick::Image (_film->content_path ());
84 libdcp::Size size = native_size ();
85 shared_ptr<Image> image (new SimpleImage (PIX_FMT_RGB24, size, false));
87 using namespace MagickCore;
89 uint8_t* p = image->data()[0];
90 for (int y = 0; y < size.height; ++y) {
91 for (int x = 0; x < size.width; ++x) {
92 Magick::Color c = magick_image->pixelColor (x, y);
93 *p++ = c.redQuantum() * 255 / QuantumRange;
94 *p++ = c.greenQuantum() * 255 / QuantumRange;
95 *p++ = c.blueQuantum() * 255 / QuantumRange;
101 image = image->crop (_film->crop(), true);
103 emit_video (image, 0);
110 ImageMagickDecoder::pixel_format () const
112 /* XXX: always true? */
113 return PIX_FMT_RGB24;
117 ImageMagickDecoder::seek_to_last ()
119 if (_iter == _files.end()) {
120 _iter = _files.begin();
129 ImageMagickDecoder::seek (double t)
131 int const f = t * frames_per_second();
133 _iter = _files.begin ();
134 for (int i = 0; i < f; ++i) {
135 if (_iter == _files.end()) {
145 ImageMagickDecoder::film_changed (Film::Property p)
147 if (p == Film::CROP) {