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 ImageMagickDecoder::ImageMagickDecoder (
35 boost::shared_ptr<Film> f, DecodeOptions o)
39 if (boost::filesystem::is_directory (_film->content_path())) {
41 boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (_film->content_path());
42 i != boost::filesystem::directory_iterator();
45 if (still_image_file (i->path().string())) {
46 _files.push_back (i->path().string());
50 _files.push_back (_film->content_path ());
53 _iter = _files.begin ();
57 ImageMagickDecoder::native_size () const
59 if (_files.empty ()) {
60 throw DecodeError (_("no still image files found"));
63 /* Look at the first file and assume its size holds for all */
64 using namespace MagickCore;
65 Magick::Image* image = new Magick::Image (_film->content_path ());
66 libdcp::Size const s = libdcp::Size (image->columns(), image->rows());
73 ImageMagickDecoder::pass ()
75 if (_iter == _files.end()) {
76 if (video_frame() >= _film->still_duration_in_frames()) {
80 emit_video (_image, true, double (video_frame()) / frames_per_second());
84 Magick::Image* magick_image = new Magick::Image (_film->content_path ());
86 libdcp::Size size = native_size ();
87 shared_ptr<Image> image (new SimpleImage (PIX_FMT_RGB24, size, false));
89 using namespace MagickCore;
91 uint8_t* p = image->data()[0];
92 for (int y = 0; y < size.height; ++y) {
93 for (int x = 0; x < size.width; ++x) {
94 Magick::Color c = magick_image->pixelColor (x, y);
95 *p++ = c.redQuantum() * 255 / QuantumRange;
96 *p++ = c.greenQuantum() * 255 / QuantumRange;
97 *p++ = c.blueQuantum() * 255 / QuantumRange;
103 _image = image->crop (_film->crop(), true);
105 emit_video (_image, false, double (video_frame()) / frames_per_second());
112 ImageMagickDecoder::pixel_format () const
114 /* XXX: always true? */
115 return PIX_FMT_RGB24;
119 ImageMagickDecoder::seek_to_last ()
121 if (_iter == _files.end()) {
122 _iter = _files.begin();
131 ImageMagickDecoder::seek (double t)
133 int const f = t * frames_per_second();
135 _iter = _files.begin ();
136 for (int i = 0; i < f; ++i) {
137 if (_iter == _files.end()) {
147 ImageMagickDecoder::film_changed (Film::Property p)
149 if (p == Film::CROP) {
155 ImageMagickDecoder::frames_per_second () const
157 return _film->source_frame_rate ();