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"
31 using boost::shared_ptr;
34 /* XXX: reads a directory and then ignores it */
36 ImageMagickDecoder::ImageMagickDecoder (
37 boost::shared_ptr<Film> f, DecodeOptions o)
41 if (boost::filesystem::is_directory (_film->content_path())) {
43 boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (_film->content_path());
44 i != boost::filesystem::directory_iterator();
47 if (still_image_file (i->path().string())) {
48 _files.push_back (i->path().string());
52 _files.push_back (_film->content_path ());
55 _iter = _files.begin ();
59 ImageMagickDecoder::native_size () const
61 if (_files.empty ()) {
62 throw DecodeError (_("no still image files found"));
65 /* Look at the first file and assume its size holds for all */
66 using namespace MagickCore;
67 Magick::Image* image = new Magick::Image (_film->content_path ());
68 libdcp::Size const s = libdcp::Size (image->columns(), image->rows());
75 ImageMagickDecoder::pass ()
77 if (_iter == _files.end()) {
78 if (video_frame() >= _film->still_duration_in_frames()) {
83 emit_video (_image, 0);
87 Magick::Image* magick_image = new Magick::Image (_film->content_path ());
89 libdcp::Size size = native_size ();
90 shared_ptr<Image> image (new SimpleImage (PIX_FMT_RGB24, size, false));
92 using namespace MagickCore;
94 uint8_t* p = image->data()[0];
95 for (int y = 0; y < size.height; ++y) {
96 for (int x = 0; x < size.width; ++x) {
97 Magick::Color c = magick_image->pixelColor (x, y);
98 *p++ = c.redQuantum() * 255 / QuantumRange;
99 *p++ = c.greenQuantum() * 255 / QuantumRange;
100 *p++ = c.blueQuantum() * 255 / QuantumRange;
106 _image = image->crop (_film->crop(), true);
109 emit_video (_image, 0);
116 ImageMagickDecoder::pixel_format () const
118 /* XXX: always true? */
119 return PIX_FMT_RGB24;
123 ImageMagickDecoder::seek_to_last ()
125 if (_iter == _files.end()) {
126 _iter = _files.begin();
135 ImageMagickDecoder::seek (double t)
137 /* XXX: frames_per_second == 0 */
138 int const f = t * frames_per_second();
140 _iter = _files.begin ();
141 for (int i = 0; i < f; ++i) {
142 if (_iter == _files.end()) {
152 ImageMagickDecoder::film_changed (Film::Property p)
154 if (p == Film::CROP) {